head 1.16;
access;
symbols
netbsd-11-0-RC4:1.15.2.1
TZDATA2026BGTZ:1.1.1.44
netbsd-11-0-RC3:1.15.2.1
TZDATA2026AGTZ:1.1.1.44
netbsd-11-0-RC2:1.15
netbsd-11-0-RC1:1.15
TZDATA2025CGTZ:1.1.1.44
perseant-exfatfs-base-20250801:1.15
netbsd-11:1.15.0.2
netbsd-11-base:1.15
TZDATA2025BGTZ:1.1.1.43
TZDATA2025AGTZ:1.1.1.42
TZDATA2025A:1.1.1.41
netbsd-10-1-RELEASE:1.7.2.3
TZDATA2024BGTZ:1.1.1.40
perseant-exfatfs-base-20240630:1.12
perseant-exfatfs:1.12.0.2
perseant-exfatfs-base:1.12
netbsd-8-3-RELEASE:1.1.1.16.4.11
netbsd-9-4-RELEASE:1.1.1.23.2.8
netbsd-10-0-RELEASE:1.7.2.3
netbsd-10-0-RC6:1.7.2.3
netbsd-10-0-RC5:1.7.2.3
netbsd-10-0-RC4:1.7.2.3
TZDATA2024AGTZ:1.1.1.39
netbsd-10-0-RC3:1.7.2.2
netbsd-10-0-RC2:1.7.2.2
TZDATA2023DGTZ:1.1.1.38
netbsd-10-0-RC1:1.7.2.1
TZDATA2023CGTZ:1.1.1.37
TZDATA2023BGTZ:1.1.1.36
TZDATA2023AGTZ:1.1.1.35
netbsd-10:1.7.0.2
netbsd-10-base:1.7
TZDATA2022GGTZ:1.1.1.34
TZDATA2022FGTZ:1.1.1.33
TZDATA2022EGTZ:1.1.1.32
TZDATA2022DGTZ:1.1.1.31
TZDATA2022CGTZ:1.1.1.30
netbsd-9-3-RELEASE:1.1.1.23.2.5
TZDATA2022AGTZ:1.1.1.29
cjep_sun2x-base1:1.1.1.28
cjep_sun2x:1.1.1.28.0.4
cjep_sun2x-base:1.1.1.28
cjep_staticlib_x-base1:1.1.1.28
netbsd-9-2-RELEASE:1.1.1.23.2.5
cjep_staticlib_x:1.1.1.28.0.2
cjep_staticlib_x-base:1.1.1.28
TZDATA2021A:1.1.1.28
TZDATA2020F:1.1.1.28
TZDATA2020D:1.1.1.27
TZDATA2020C:1.1.1.26
netbsd-9-1-RELEASE:1.1.1.23.2.3
TZDATA2020B:1.1.1.26
TZDATA2020A:1.1.1.25
phil-wifi-20200421:1.1.1.24
phil-wifi-20200411:1.1.1.24
is-mlppp:1.1.1.24.0.2
is-mlppp-base:1.1.1.24
phil-wifi-20200406:1.1.1.24
netbsd-8-2-RELEASE:1.1.1.16.4.6
netbsd-9-0-RELEASE:1.1.1.23.2.1
netbsd-9-0-RC2:1.1.1.23.2.1
netbsd-9-0-RC1:1.1.1.23.2.1
phil-wifi-20191119:1.1.1.24
TZDATA2019C:1.1.1.24
netbsd-9:1.1.1.23.0.2
netbsd-9-base:1.1.1.23
phil-wifi-20190609:1.1.1.23
netbsd-8-1-RELEASE:1.1.1.16.4.6
netbsd-8-1-RC1:1.1.1.16.4.6
TZDATA2019A:1.1.1.23
pgoyette-compat-merge-20190127:1.1.1.18.2.4
pgoyette-compat-20190127:1.1.1.22
pgoyette-compat-20190118:1.1.1.22
TZDATA2018I:1.1.1.22
TZDATA2018H:1.1.1.22
pgoyette-compat-1226:1.1.1.21
pgoyette-compat-1126:1.1.1.21
TZDATA2018G:1.1.1.21
pgoyette-compat-1020:1.1.1.21
TZDATA2018F:1.1.1.21
pgoyette-compat-0930:1.1.1.20
pgoyette-compat-0906:1.1.1.20
netbsd-7-2-RELEASE:1.1.1.1.4.10
pgoyette-compat-0728:1.1.1.20
netbsd-8-0-RELEASE:1.1.1.16.4.4
phil-wifi:1.1.1.20.0.2
phil-wifi-base:1.1.1.20
pgoyette-compat-0625:1.1.1.20
netbsd-8-0-RC2:1.1.1.16.4.4
pgoyette-compat-0521:1.1.1.20
TZDATA2018E:1.1.1.20
pgoyette-compat-0502:1.1.1.19
pgoyette-compat-0422:1.1.1.19
netbsd-8-0-RC1:1.1.1.16.4.3
pgoyette-compat-0415:1.1.1.19
pgoyette-compat-0407:1.1.1.19
pgoyette-compat-0330:1.1.1.19
TZDATA2018D:1.1.1.19
pgoyette-compat-0322:1.1.1.18
pgoyette-compat-0315:1.1.1.18
netbsd-7-1-2-RELEASE:1.1.1.1.4.7.2.1
pgoyette-compat:1.1.1.18.0.2
pgoyette-compat-base:1.1.1.18
TZDATA2018C:1.1.1.18
netbsd-7-1-1-RELEASE:1.1.1.1.4.7.2.1
matt-nb8-mediatek:1.1.1.16.4.1.0.2
matt-nb8-mediatek-base:1.1.1.16.4.1
TZDATA2017C:1.1.1.17
perseant-stdc-iso10646:1.1.1.16.0.6
perseant-stdc-iso10646-base:1.1.1.16
netbsd-8:1.1.1.16.0.4
netbsd-8-base:1.1.1.16
prg-localcount2-base3:1.1.1.16
prg-localcount2-base2:1.1.1.16
prg-localcount2-base1:1.1.1.16
prg-localcount2:1.1.1.16.0.2
prg-localcount2-base:1.1.1.16
pgoyette-localcount-20170426:1.1.1.16
bouyer-socketcan-base1:1.1.1.16
TZDATA2017B:1.1.1.16
pgoyette-localcount-20170320:1.1.1.16
netbsd-7-1:1.1.1.1.4.7.0.2
netbsd-7-1-RELEASE:1.1.1.1.4.7
TZDATA2017A:1.1.1.16
netbsd-7-1-RC2:1.1.1.1.4.6
netbsd-7-nhusb-base-20170116:1.1.1.1.4.6
bouyer-socketcan:1.1.1.15.0.2
bouyer-socketcan-base:1.1.1.15
pgoyette-localcount-20170107:1.1.1.15
netbsd-7-1-RC1:1.1.1.1.4.6
TZDATA2016J:1.1.1.15
pgoyette-localcount-20161104:1.1.1.14
TZDATA2016I:1.1.1.14
netbsd-7-0-2-RELEASE:1.1.1.1.4.4.2.1
TZDATA2016H:1.1.1.13
TZDATA2016G:1.1.1.12
localcount-20160914:1.1.1.11
netbsd-7-nhusb:1.1.1.1.4.5.0.2
netbsd-7-nhusb-base:1.1.1.1.4.5
TZDATA2016F:1.1.1.11
pgoyette-localcount-20160806:1.1.1.10
pgoyette-localcount-20160726:1.1.1.10
pgoyette-localcount:1.1.1.10.0.2
pgoyette-localcount-base:1.1.1.10
TZDATA2016D:1.1.1.10
netbsd-7-0-1-RELEASE:1.1.1.1.4.4.2.1
TZDATA2016B:1.1.1.9
netbsd-7-0:1.1.1.1.4.4.0.2
netbsd-7-0-RELEASE:1.1.1.1.4.4
TZDATA2015F:1.1.1.8
netbsd-7-0-RC3:1.1.1.1.4.3
netbsd-7-0-RC2:1.1.1.1.4.3
TZDATA2015E:1.1.1.7
netbsd-7-0-RC1:1.1.1.1.4.3
TZDATA2015B:1.1.1.7
TZDATA2015A:1.1.1.6
TZDATA2014J:1.1.1.5
TZDATA2014I:1.1.1.4
TZDATA2014H:1.1.1.3
TZDATA2014G:1.1.1.2
tls-maxphys-base:1.1.1.1
tls-maxphys:1.1.1.1.0.6
netbsd-7:1.1.1.1.0.4
netbsd-7-base:1.1.1.1
tls-earlyentropy:1.1.1.1.0.2
tls-earlyentropy-base:1.1.1.1
TZDATA2014F:1.1.1.1
TZDATA:1.1.1;
locks; strict;
comment @# @;
1.16
date 2025.12.19.00.59.25; author kre; state Exp;
branches;
next 1.15;
commitid ZpAAKqYivWTshXmG;
1.15
date 2025.03.26.17.35.31; author kre; state Exp;
branches
1.15.2.1;
next 1.14;
commitid 51LIvyJsTtUjpBOF;
1.14
date 2025.02.03.04.47.13; author kre; state Exp;
branches;
next 1.13;
commitid I5GdBIKhQShiNYHF;
1.13
date 2024.10.29.21.32.00; author kre; state Exp;
branches;
next 1.12;
commitid tNwb36p5ArFotBvF;
1.12
date 2024.02.05.21.52.38; author kre; state Exp;
branches
1.12.2.1;
next 1.11;
commitid nfJkI6GmJvKhaiXE;
1.11
date 2023.12.23.15.46.44; author kre; state Exp;
branches;
next 1.10;
commitid mHozBcGf4VcKyBRE;
1.10
date 2023.03.31.19.05.28; author kre; state Exp;
branches;
next 1.9;
commitid LCk1KxSDgI52fjjE;
1.9
date 2023.03.24.12.46.08; author kre; state Exp;
branches;
next 1.8;
commitid Vu7hCZQ3BFJHmniE;
1.8
date 2023.03.23.16.40.39; author kre; state Exp;
branches;
next 1.7;
commitid Lad9YmbFJl9aHgiE;
1.7
date 2022.12.11.07.08.36; author kre; state Exp;
branches
1.7.2.1;
next 1.6;
commitid XchgoahBwoy7O65E;
1.6
date 2022.12.11.06.18.00; author kre; state Exp;
branches;
next 1.5;
commitid qmg14m9MMNPbw65E;
1.5
date 2022.08.17.12.19.41; author kre; state Exp;
branches;
next 1.4;
commitid 9E7aeoIgaNddgeQD;
1.4
date 2022.03.20.18.20.19; author kre; state Exp;
branches;
next 1.3;
commitid RpjEJHLFnW2R4ZwD;
1.3
date 2021.10.22.21.01.06; author kre; state Exp;
branches;
next 1.2;
commitid 17ueQYVKlS3JJQdD;
1.2
date 2021.10.01.22.35.06; author kre; state Exp;
branches;
next 1.1;
commitid QAKr390lgTnBV9bD;
1.1
date 2014.08.08.08.56.49; author apb; state Exp;
branches
1.1.1.1;
next ;
commitid iGXhXh3Wpi6OlxLx;
1.15.2.1
date 2026.04.02.16.33.43; author martin; state Exp;
branches;
next ;
commitid aup4agd012686pAG;
1.12.2.1
date 2025.08.02.05.54.24; author perseant; state Exp;
branches;
next ;
commitid 23j6GFaDws3O875G;
1.7.2.1
date 2023.04.25.15.58.37; author martin; state Exp;
branches;
next 1.7.2.2;
commitid AZ8cpWX7dh1BovmE;
1.7.2.2
date 2023.12.29.20.41.12; author martin; state Exp;
branches;
next 1.7.2.3;
commitid UnNQohsmNUSXWoSE;
1.7.2.3
date 2024.02.06.12.22.42; author martin; state Exp;
branches;
next 1.7.2.4;
commitid pTARKyvqsnBQYmXE;
1.7.2.4
date 2025.04.12.12.47.26; author martin; state Exp;
branches;
next 1.7.2.5;
commitid iC6dUDY9pz4hgLQF;
1.7.2.5
date 2025.04.13.15.13.18; author bouyer; state Exp;
branches;
next ;
commitid mWJcQVaK58MF2UQF;
1.1.1.1
date 2014.08.08.08.56.49; author apb; state Exp;
branches
1.1.1.1.2.1
1.1.1.1.4.1
1.1.1.1.6.1;
next 1.1.1.2;
commitid iGXhXh3Wpi6OlxLx;
1.1.1.2
date 2014.08.31.06.46.21; author apb; state Exp;
branches;
next 1.1.1.3;
commitid 97niuh41EisdTtOx;
1.1.1.3
date 2014.10.04.11.42.10; author apb; state Exp;
branches;
next 1.1.1.4;
commitid 3DEqqETZ5KmWqSSx;
1.1.1.4
date 2014.10.23.03.37.21; author apb; state Exp;
branches;
next 1.1.1.5;
commitid jKnsSpMUSkPJ8hVx;
1.1.1.5
date 2014.11.16.07.08.09; author apb; state Exp;
branches;
next 1.1.1.6;
commitid 3SkT3wPXTpSexnYx;
1.1.1.6
date 2015.01.31.18.23.15; author apb; state Exp;
branches;
next 1.1.1.7;
commitid bjXoHWtuRrKnPc8y;
1.1.1.7
date 2015.03.21.15.45.35; author apb; state Exp;
branches;
next 1.1.1.8;
commitid GIz4juHFOXHDnuey;
1.1.1.8
date 2015.08.11.18.07.06; author apb; state Exp;
branches;
next 1.1.1.9;
commitid kmpTo6XW4QHazSwy;
1.1.1.9
date 2016.03.15.17.10.28; author christos; state Exp;
branches;
next 1.1.1.10;
commitid LgY9iK53zwvbgLYy;
1.1.1.10
date 2016.06.01.00.03.15; author agc; state Exp;
branches
1.1.1.10.2.1;
next 1.1.1.11;
commitid SOPsfX18yKYt5H8z;
1.1.1.11
date 2016.08.07.00.49.06; author kre; state Exp;
branches;
next 1.1.1.12;
commitid rhYGciKcCLWDbjhz;
1.1.1.12
date 2016.09.29.20.40.52; author kre; state Exp;
branches;
next 1.1.1.13;
commitid AKHKNrnsUu7T4eoz;
1.1.1.13
date 2016.10.20.23.12.31; author kre; state Exp;
branches;
next 1.1.1.14;
commitid 3et8Pru6nxO2fWqz;
1.1.1.14
date 2016.11.03.09.52.39; author kre; state Exp;
branches;
next 1.1.1.15;
commitid MiCzk6brxTdKmFsz;
1.1.1.15
date 2016.11.24.05.43.18; author kre; state Exp;
branches
1.1.1.15.2.1;
next 1.1.1.16;
commitid iDuhgxvdwCTkjlvz;
1.1.1.16
date 2017.03.01.00.37.25; author kre; state Exp;
branches
1.1.1.16.4.1;
next 1.1.1.17;
commitid G61CluXIjUN4vMHz;
1.1.1.17
date 2017.10.24.01.26.06; author kre; state Exp;
branches;
next 1.1.1.18;
commitid mbHKYe3Y2Ihs9fcA;
1.1.1.18
date 2018.01.24.13.52.10; author kre; state Exp;
branches
1.1.1.18.2.1;
next 1.1.1.19;
commitid PPD9y1NZfop2k8oA;
1.1.1.19
date 2018.03.24.01.45.11; author kre; state Exp;
branches;
next 1.1.1.20;
commitid IWaIjLBDDMC1pEvA;
1.1.1.20
date 2018.05.04.10.53.20; author kre; state Exp;
branches
1.1.1.20.2.1;
next 1.1.1.21;
commitid T65I1ypytjur7YAA;
1.1.1.21
date 2018.10.19.04.31.40; author kre; state Exp;
branches;
next 1.1.1.22;
commitid iPAtPIMEH88HBwWA;
1.1.1.22
date 2018.12.30.00.40.46; author kre; state Exp;
branches;
next 1.1.1.23;
commitid 2NsExeiOIm301L5B;
1.1.1.23
date 2019.03.26.10.06.18; author kre; state Exp;
branches
1.1.1.23.2.1;
next 1.1.1.24;
commitid 0PGwXCYDuCdCnRgB;
1.1.1.24
date 2019.10.08.02.44.02; author kre; state Exp;
branches;
next 1.1.1.25;
commitid 1AlmCKr6wQbiD0GB;
1.1.1.25
date 2020.04.25.12.16.59; author kre; state Exp;
branches;
next 1.1.1.26;
commitid ABpciWj76gKinL5C;
1.1.1.26
date 2020.10.08.04.27.30; author kre; state Exp;
branches;
next 1.1.1.27;
commitid tv1N52yw9rdnr3rC;
1.1.1.27
date 2020.10.22.08.23.38; author kre; state Exp;
branches;
next 1.1.1.28;
commitid tk3xk48iapjuiSsC;
1.1.1.28
date 2020.12.31.07.50.05; author kre; state Exp;
branches;
next 1.1.1.29;
commitid ZiQZHrT9SnNrRRBC;
1.1.1.29
date 2022.03.20.17.59.53; author kre; state Exp;
branches;
next 1.1.1.30;
commitid 2CSshxT0svJPXYwD;
1.1.1.30
date 2022.08.17.12.17.47; author kre; state Exp;
branches;
next 1.1.1.31;
commitid u6rSFtMNjFhyfeQD;
1.1.1.31
date 2022.09.28.11.05.40; author kre; state Exp;
branches;
next 1.1.1.32;
commitid 3PdVZgcK4U46vCVD;
1.1.1.32
date 2022.10.13.11.24.59; author kre; state Exp;
branches;
next 1.1.1.33;
commitid g0eArcouiXRN7yXD;
1.1.1.33
date 2022.10.30.01.02.56; author kre; state Exp;
branches;
next 1.1.1.34;
commitid Amc6tVs2mojy8GZD;
1.1.1.34
date 2022.12.11.06.46.55; author kre; state Exp;
branches;
next 1.1.1.35;
commitid GVY8e8XbxvXQG65E;
1.1.1.35
date 2023.03.23.16.31.13; author kre; state Exp;
branches;
next 1.1.1.36;
commitid Wi2azCEtD4c2EgiE;
1.1.1.36
date 2023.03.24.12.33.40; author kre; state Exp;
branches;
next 1.1.1.37;
commitid qUzJ0Ndf8BFxiniE;
1.1.1.37
date 2023.03.31.19.03.12; author kre; state Exp;
branches;
next 1.1.1.38;
commitid URy1zd0OVspcejjE;
1.1.1.38
date 2023.12.23.15.38.12; author kre; state Exp;
branches;
next 1.1.1.39;
commitid 7McRjQIF7CaNvBRE;
1.1.1.39
date 2024.02.05.21.34.37; author kre; state Exp;
branches;
next 1.1.1.40;
commitid Ig2l9D6xJLMl4iXE;
1.1.1.40
date 2024.10.29.21.24.45; author kre; state Exp;
branches;
next 1.1.1.41;
commitid vTpQ269FGpZTqBvF;
1.1.1.41
date 2025.02.01.23.00.24; author kre; state Exp;
branches;
next 1.1.1.42;
commitid mdTcRyY35YinUOHF;
1.1.1.42
date 2025.02.02.00.43.08; author kre; state Exp;
branches;
next 1.1.1.43;
commitid pskpHkzc1w3BtPHF;
1.1.1.43
date 2025.03.26.17.34.47; author kre; state Exp;
branches;
next 1.1.1.44;
commitid 7btFJAJt1EX3pBOF;
1.1.1.44
date 2025.12.19.00.58.39; author kre; state Exp;
branches;
next ;
commitid VAKtOMN53YKehXmG;
1.1.1.1.2.1
date 2014.08.08.08.56.49; author tls; state dead;
branches;
next 1.1.1.1.2.2;
commitid igbBQGexpTfGAMLx;
1.1.1.1.2.2
date 2014.08.10.06.51.01; author tls; state Exp;
branches;
next ;
commitid igbBQGexpTfGAMLx;
1.1.1.1.4.1
date 2014.09.21.18.50.41; author snj; state Exp;
branches;
next 1.1.1.1.4.2;
commitid VVDYrvzaZp7ccfRx;
1.1.1.1.4.2
date 2014.11.18.18.32.29; author snj; state Exp;
branches;
next 1.1.1.1.4.3;
commitid 9Tbhffn21gxrfHYx;
1.1.1.1.4.3
date 2015.03.25.17.09.59; author snj; state Exp;
branches;
next 1.1.1.1.4.4;
commitid Wjq3hLIIKowiH0fy;
1.1.1.1.4.4
date 2015.09.10.03.00.37; author snj; state Exp;
branches
1.1.1.1.4.4.2.1;
next 1.1.1.1.4.5;
commitid lDxmggelKO4mAEAy;
1.1.1.1.4.5
date 2016.04.11.09.59.00; author snj; state Exp;
branches
1.1.1.1.4.5.2.1;
next 1.1.1.1.4.6;
commitid t5XKjevTgDnb1c2z;
1.1.1.1.4.6
date 2016.12.13.07.29.24; author snj; state Exp;
branches;
next 1.1.1.1.4.7;
commitid IyKxG8PcDdpGhNxz;
1.1.1.1.4.7
date 2017.03.02.07.46.02; author snj; state Exp;
branches
1.1.1.1.4.7.2.1;
next 1.1.1.1.4.8;
commitid jG5UaWqOyo95QWHz;
1.1.1.1.4.8
date 2017.11.05.20.42.18; author snj; state Exp;
branches;
next 1.1.1.1.4.9;
commitid lUyNKQaJmTIaaTdA;
1.1.1.1.4.9
date 2018.03.25.14.06.33; author martin; state Exp;
branches;
next 1.1.1.1.4.10;
commitid 9bv6yBXyEFjntQvA;
1.1.1.1.4.10
date 2018.08.25.15.11.43; author martin; state Exp;
branches;
next 1.1.1.1.4.11;
commitid vuSV7k7TN3teUvPA;
1.1.1.1.4.11
date 2018.10.30.19.29.39; author martin; state Exp;
branches;
next 1.1.1.1.4.12;
commitid ezVFlUIpUFyOd1YA;
1.1.1.1.4.12
date 2019.01.07.14.00.31; author martin; state Exp;
branches;
next ;
commitid N8FDNZdjMEmmbR6B;
1.1.1.1.4.4.2.1
date 2016.04.11.09.59.57; author snj; state Exp;
branches;
next 1.1.1.1.4.4.2.2;
commitid TSwDz64NMxnG1c2z;
1.1.1.1.4.4.2.2
date 2016.12.13.07.28.23; author snj; state Exp;
branches;
next 1.1.1.1.4.4.2.3;
commitid zc2ZPU46EscrhNxz;
1.1.1.1.4.4.2.3
date 2017.03.02.07.44.13; author snj; state Exp;
branches;
next 1.1.1.1.4.4.2.4;
commitid IzENadUfmsFmPWHz;
1.1.1.1.4.4.2.4
date 2017.11.05.20.44.41; author snj; state Exp;
branches;
next 1.1.1.1.4.4.2.5;
commitid CwYTRqFsgKE0bTdA;
1.1.1.1.4.4.2.5
date 2018.03.25.14.11.39; author martin; state Exp;
branches;
next 1.1.1.1.4.4.2.6;
commitid tixpPUjkrqqavQvA;
1.1.1.1.4.4.2.6
date 2018.10.30.19.36.51; author martin; state Exp;
branches;
next 1.1.1.1.4.4.2.7;
commitid jr5eATXwdQGhg1YA;
1.1.1.1.4.4.2.7
date 2019.01.07.14.04.55; author martin; state Exp;
branches;
next ;
commitid hXICEH5aawLUcR6B;
1.1.1.1.4.5.2.1
date 2017.01.18.08.46.22; author skrll; state Exp;
branches;
next 1.1.1.1.4.5.2.2;
commitid M6f3RyDtiAR3wqCz;
1.1.1.1.4.5.2.2
date 2017.03.13.07.41.25; author skrll; state Exp;
branches;
next ;
commitid vH6VFbpxnMy7rmJz;
1.1.1.1.4.7.2.1
date 2017.11.05.20.43.37; author snj; state Exp;
branches;
next 1.1.1.1.4.7.2.2;
commitid 4GjqsuHWRN3DaTdA;
1.1.1.1.4.7.2.2
date 2018.03.25.14.09.31; author martin; state Exp;
branches;
next 1.1.1.1.4.7.2.3;
commitid y4vLirt4t2sruQvA;
1.1.1.1.4.7.2.3
date 2018.10.30.19.31.47; author martin; state Exp;
branches;
next 1.1.1.1.4.7.2.4;
commitid umzgDrJ1I3mze1YA;
1.1.1.1.4.7.2.4
date 2019.01.07.14.03.21; author martin; state Exp;
branches;
next ;
commitid fL1PAPiDXb9mcR6B;
1.1.1.1.6.1
date 2014.08.08.08.56.49; author tls; state dead;
branches;
next 1.1.1.1.6.2;
commitid jTnpym9Qu0o4R1Nx;
1.1.1.1.6.2
date 2014.08.20.00.00.20; author tls; state Exp;
branches;
next ;
commitid jTnpym9Qu0o4R1Nx;
1.1.1.10.2.1
date 2016.11.04.14.48.51; author pgoyette; state Exp;
branches;
next 1.1.1.10.2.2;
commitid 2m1JRwYmpwPkOOsz;
1.1.1.10.2.2
date 2017.01.07.08.56.02; author pgoyette; state Exp;
branches;
next 1.1.1.10.2.3;
commitid uEL0C1YuiJrlV0Bz;
1.1.1.10.2.3
date 2017.03.20.06.56.54; author pgoyette; state Exp;
branches;
next ;
commitid jjw7cAwgyKq7RfKz;
1.1.1.15.2.1
date 2017.04.21.16.53.05; author bouyer; state Exp;
branches;
next ;
commitid dUG7nkTKALCadqOz;
1.1.1.16.4.1
date 2017.11.02.21.02.06; author snj; state Exp;
branches;
next 1.1.1.16.4.2;
commitid FmNdBv7Bu0C8mvdA;
1.1.1.16.4.2
date 2018.01.31.19.39.50; author martin; state Exp;
branches;
next 1.1.1.16.4.3;
commitid I2GaJUZc3BCZ04pA;
1.1.1.16.4.3
date 2018.03.24.18.03.21; author snj; state Exp;
branches;
next 1.1.1.16.4.4;
commitid DPgyGeUZFADBOJvA;
1.1.1.16.4.4
date 2018.05.06.09.42.38; author martin; state Exp;
branches;
next 1.1.1.16.4.5;
commitid r1xiIW7nymU8FdBA;
1.1.1.16.4.5
date 2018.10.21.12.10.23; author martin; state Exp;
branches;
next 1.1.1.16.4.6;
commitid Npq23L3YyCtN4PWA;
1.1.1.16.4.6
date 2019.01.02.15.48.01; author martin; state Exp;
branches;
next 1.1.1.16.4.7;
commitid wMtLNC4aT7jwUd6B;
1.1.1.16.4.7
date 2020.12.07.19.52.53; author martin; state Exp;
branches;
next 1.1.1.16.4.8;
commitid CQwaCiST8CPxCQyC;
1.1.1.16.4.8
date 2021.04.30.14.26.39; author martin; state Exp;
branches;
next 1.1.1.16.4.9;
commitid pZkzbpzoDpNRbkRC;
1.1.1.16.4.9
date 2022.10.26.18.16.43; author martin; state Exp;
branches;
next 1.1.1.16.4.10;
commitid d5w1InjeydTDYfZD;
1.1.1.16.4.10
date 2023.12.30.19.00.32; author martin; state Exp;
branches;
next 1.1.1.16.4.11;
commitid QBjvTBDay8GbpwSE;
1.1.1.16.4.11
date 2024.02.17.15.55.08; author martin; state Exp;
branches;
next ;
commitid UCxcewhi2jVCNNYE;
1.1.1.18.2.1
date 2018.03.30.06.20.10; author pgoyette; state Exp;
branches;
next 1.1.1.18.2.2;
commitid h5ZWTFXyqL8kJrwA;
1.1.1.18.2.2
date 2018.05.21.04.35.54; author pgoyette; state Exp;
branches;
next 1.1.1.18.2.3;
commitid X5L8kSrBWQcDt7DA;
1.1.1.18.2.3
date 2018.10.20.06.58.21; author pgoyette; state Exp;
branches;
next 1.1.1.18.2.4;
commitid mTSoqZEZ4arHnFWA;
1.1.1.18.2.4
date 2019.01.18.08.50.09; author pgoyette; state Exp;
branches;
next ;
commitid Lmlzg3OVT2cd6f8B;
1.1.1.20.2.1
date 2019.06.10.22.05.05; author christos; state Exp;
branches;
next 1.1.1.20.2.2;
commitid jtc8rnCzWiEEHGqB;
1.1.1.20.2.2
date 2020.04.13.08.03.06; author martin; state Exp;
branches;
next ;
commitid X01YhRUPVUDaec4C;
1.1.1.23.2.1
date 2019.11.24.08.30.27; author martin; state Exp;
branches;
next 1.1.1.23.2.2;
commitid 8LxyeqV11U4P15MB;
1.1.1.23.2.2
date 2020.06.07.13.15.06; author martin; state Exp;
branches;
next 1.1.1.23.2.3;
commitid 0KB7pZxieJ8LiibC;
1.1.1.23.2.3
date 2020.10.11.11.26.25; author martin; state Exp;
branches;
next 1.1.1.23.2.4;
commitid PwOzakCxTuLGEtrC;
1.1.1.23.2.4
date 2020.11.01.17.19.35; author martin; state Exp;
branches;
next 1.1.1.23.2.5;
commitid JDEaHjkuPMobWcuC;
1.1.1.23.2.5
date 2021.04.06.18.01.21; author martin; state Exp;
branches;
next 1.1.1.23.2.6;
commitid FREP6fQiFE5c9gOC;
1.1.1.23.2.6
date 2022.10.20.13.18.54; author martin; state Exp;
branches;
next 1.1.1.23.2.7;
commitid vbCaDtdjfZc6wsYD;
1.1.1.23.2.7
date 2023.12.30.18.35.31; author martin; state Exp;
branches;
next 1.1.1.23.2.8;
commitid vv46SLJIoTsCgwSE;
1.1.1.23.2.8
date 2024.02.17.11.32.19; author martin; state Exp;
branches;
next 1.1.1.23.2.9;
commitid friNK1b3ratclMYE;
1.1.1.23.2.9
date 2025.04.12.12.53.22; author martin; state Exp;
branches;
next 1.1.1.23.2.10;
commitid rNByoqGRgcjoiLQF;
1.1.1.23.2.10
date 2025.04.13.15.20.29; author bouyer; state Exp;
branches;
next ;
commitid MkTl52daCwk85UQF;
desc
@@
1.16
log
@Merge tzdata2025c
@
text
@# tzdb data for Asia and environs
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.
# This file is by no means authoritative; if you think you know better,
# go ahead and edit the file, and please send any changes to
# the public mailing list tz@@iana.org for general use in the future.
# For more, please see the file CONTRIBUTING in the tz distribution.
# From Paul Eggert (2019-07-11):
#
# Unless otherwise specified, the source for data through 1990 is:
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
# San Diego: ACS Publications, Inc. (2003).
# Unfortunately this book contains many errors and cites no sources.
#
# Many years ago Gwillim Law wrote that a good source
# for time zone data was the International Air Transport
# Association's Standard Schedules Information Manual (IATA SSIM),
# published semiannually. Law sent in several helpful summaries
# of the IATA's data after 1990. Except where otherwise noted,
# IATA SSIM is the source for entries after 1990.
#
# Another source occasionally used is Edward W. Whitman, World Time Differences,
# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
# I found in the UCLA library.
#
# For data circa 1899, a common source is:
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
# https://www.jstor.org/stable/1774359
#
# For Russian data circa 1919, a source is:
# Byalokoz EL. New Counting of Time in Russia since July 1, 1919.
# (See the 'europe' file for a fuller citation.)
#
# The following alphabetic abbreviations appear in these tables
# (corrections are welcome):
# std dst
# LMT Local Mean Time
# 2:00 EET EEST Eastern European Time
# 2:00 IST IDT Israel
# 5:30 IST India
# 7:00 WIB west Indonesia (Waktu Indonesia Barat)
# 8:00 WITA central Indonesia (Waktu Indonesia Tengah)
# 8:00 CST China
# 8:00 HKT HKST Hong Kong (HKWT* for Winter Time in late 1941)
# 8:00 PST PDT* Philippines
# 8:30 KST KDT Korea when at +0830
# 9:00 WIT east Indonesia (Waktu Indonesia Timur)
# 9:00 JST JDT Japan
# 9:00 KST KDT Korea when at +09
# *I invented the abbreviations HKWT and PDT; see below.
# Otherwise, these tables typically use numeric abbreviations like +03
# and +0330 for integer hour and minute UT offsets. Although earlier
# editions invented alphabetic time zone abbreviations for every
# offset, this did not reflect common practice.
#
# See the 'europe' file for Russia and Turkey in Asia.
# From Guy Harris:
# Incorporates data for Singapore from Robert Elz' asia 1.1, as well as
# additional information from Tom Yap, Sun Microsystems Intercontinental
# Technical Support (including a page from the Official Airline Guide -
# Worldwide Edition).
###############################################################################
# These rules are stolen from the 'europe' file.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule EUAsia 1981 max - Mar lastSun 1:00u 1:00 S
Rule EUAsia 1979 1995 - Sep lastSun 1:00u 0 -
Rule EUAsia 1996 max - Oct lastSun 1:00u 0 -
Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 -
Rule E-EurAsia 1979 1995 - Sep lastSun 0:00 0 -
Rule E-EurAsia 1996 max - Oct lastSun 0:00 0 -
Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 -
Rule RussiaAsia 1981 1983 - Oct 1 0:00 0 -
Rule RussiaAsia 1984 1995 - Sep lastSun 2:00s 0 -
Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 -
Rule RussiaAsia 1996 2010 - Oct lastSun 2:00s 0 -
# Afghanistan
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Kabul 4:36:48 - LMT 1890
4:00 - %z 1945
4:30 - %z
# Armenia
# From Paul Eggert (2006-03-22):
# Shanks & Pottenger have Yerevan switching to 3:00 (with Russian DST)
# in spring 1991, then to 4:00 with no DST in fall 1995, then
# readopting Russian DST in 1997. Go with Shanks & Pottenger, even
# when they disagree with others. Edgar Der-Danieliantz
# reported (1996-05-04) that Yerevan probably wouldn't use DST
# in 1996, though it did use DST in 1995. IATA SSIM (1991/1998) reports that
# Armenia switched from 3:00 to 4:00 in 1998 and observed DST after 1991,
# but started switching at 3:00s in 1998.
# From Arthur David Olson (2011-06-15):
# While Russia abandoned DST in 2011, Armenia may choose to
# follow Russia's "old" rules.
# From Alexander Krivenyshev (2012-02-10):
# According to News Armenia, on Feb 9, 2012,
# http://newsarmenia.ru/society/20120209/42609695.html
#
# The Armenia National Assembly adopted final reading of Amendments to the
# Law "On procedure of calculation time on the territory of the Republic of
# Armenia" according to which Armenia [is] abolishing Daylight Saving Time.
# or
# (brief)
# http://www.worldtimezone.com/dst_news/dst_news_armenia03.html
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 -
Rule Armenia 2011 only - Oct lastSun 2:00s 0 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2
3:00 - %z 1957 Mar
4:00 RussiaAsia %z 1991 Mar 31 2:00s
3:00 RussiaAsia %z 1995 Sep 24 2:00s
4:00 - %z 1997
4:00 RussiaAsia %z 2011
4:00 Armenia %z
# Azerbaijan
# From Rustam Aliyev of the Azerbaijan Internet Forum (2005-10-23):
# According to the resolution of Cabinet of Ministers, 1997
# From Paul Eggert (2015-09-17): It was Resolution No. 21 (1997-03-17).
# http://code.az/files/daylight_res.pdf
# From Steffen Thorsen (2016-03-17):
# ... the Azerbaijani Cabinet of Ministers has cancelled switching to
# daylight saving time....
# https://www.azernews.az/azerbaijan/94137.html
# http://vestnikkavkaza.net/news/Azerbaijani-Cabinet-of-Ministers-cancels-daylight-saving-time.html
# http://en.apa.az/xeber_azerbaijan_abolishes_daylight_savings_ti_240862.html
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 -
Rule Azer 1997 2015 - Oct lastSun 5:00 0 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Baku 3:19:24 - LMT 1924 May 2
3:00 - %z 1957 Mar
4:00 RussiaAsia %z 1991 Mar 31 2:00s
3:00 RussiaAsia %z 1992 Sep lastSun 2:00s
4:00 - %z 1996
4:00 EUAsia %z 1997
4:00 Azer %z
# Bahrain
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Bahrain 3:22:20 - LMT 1941 Jul 20 # Manamah
3:30 - +0330 1944 Jan 1
4:00 - +04 1972 Jun
3:00 - +03
# Bangladesh
# From Alexander Krivenyshev (2009-05-13):
# According to newspaper Asian Tribune (May 6, 2009) Bangladesh may introduce
# Daylight Saving Time from June 16 to Sept 30
#
# Bangladesh to introduce daylight saving time likely from June 16
# http://www.asiantribune.com/?q=node/17288
# http://www.worldtimezone.com/dst_news/dst_news_bangladesh02.html
#
# "... Bangladesh government has decided to switch daylight saving time from
# June
# 16 till September 30 in a bid to ensure maximum use of daylight to cope with
# crippling power crisis. "
#
# The switch will remain in effect from June 16 to Sept 30 (2009) but if
# implemented the next year, it will come in force from April 1, 2010
# From Steffen Thorsen (2009-06-02):
# They have finally decided now, but changed the start date to midnight between
# the 19th and 20th, and they have not set the end date yet.
#
# Some sources:
# https://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601
# http://bdnews24.com/details.php?id=85889&cid=2
#
# Our wrap-up:
# https://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html
# From A. N. M. Kamrus Saadat (2009-06-15):
# Finally we've got the official mail regarding DST start time where DST start
# time is mentioned as Jun 19 2009, 23:00 from BTRC (Bangladesh
# Telecommunication Regulatory Commission).
#
# No DST end date has been announced yet.
# From Alexander Krivenyshev (2009-09-25):
# Bangladesh won't go back to Standard Time from October 1, 2009,
# instead it will continue DST measure till the cabinet makes a fresh decision.
#
# Following report by same newspaper-"The Daily Star Friday":
# "DST change awaits cabinet decision-Clock won't go back by 1-hr from Oct 1"
# http://www.thedailystar.net/newDesign/news-details.php?nid=107021
# http://www.worldtimezone.com/dst_news/dst_news_bangladesh04.html
# From Steffen Thorsen (2009-10-13):
# IANS (Indo-Asian News Service) now reports:
# Bangladesh has decided that the clock advanced by an hour to make
# maximum use of daylight hours as an energy saving measure would
# "continue for an indefinite period."
#
# One of many places where it is published:
# http://www.thaindian.com/newsportal/business/bangladesh-to-continue-indefinitely-with-advanced-time_100259987.html
# From Alexander Krivenyshev (2009-12-24):
# According to Bangladesh newspaper "The Daily Star,"
# Bangladesh will change its clock back to Standard Time on Dec 31, 2009.
#
# Clock goes back 1-hr on Dec 31 night.
# http://www.thedailystar.net/newDesign/news-details.php?nid=119228
# http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html
#
# "...The government yesterday decided to put the clock back by one hour
# on December 31 midnight and the new time will continue until March 31,
# 2010 midnight. The decision came at a cabinet meeting at the Prime
# Minister's Office last night..."
# From Alexander Krivenyshev (2010-03-22):
# According to Bangladesh newspaper "The Daily Star,"
# Cabinet cancels Daylight Saving Time
# http://www.thedailystar.net/newDesign/latest_news.php?nid=22817
# http://www.worldtimezone.com/dst_news/dst_news_bangladesh06.html
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Dhaka 2009 only - Jun 19 23:00 1:00 -
Rule Dhaka 2009 only - Dec 31 24:00 0 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Dhaka 6:01:40 - LMT 1890
5:53:20 - HMT 1941 Oct # Howrah Mean Time?
6:30 - %z 1942 May 15
5:30 - %z 1942 Sep
6:30 - %z 1951 Sep 30
6:00 - %z 2009
6:00 Dhaka %z
# Bhutan
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Thimphu 5:58:36 - LMT 1947 Aug 15 # or Thimbu
5:30 - %z 1987 Oct
6:00 - %z
# British Indian Ocean Territory
# Whitman and the 1995 CIA time zone map say 5:00, but the
# 1997 and later maps say 6:00. Assume the switch occurred in 1996.
# We have no information as to when standard time was introduced;
# assume it occurred in 1907, the same year as Mauritius (which
# then contained the Chagos Archipelago).
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Indian/Chagos 4:49:40 - LMT 1907
5:00 - %z 1996
6:00 - %z
# Brunei
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
7:30 - +0730 1933
8:00 - +08
# Myanmar (Burma)
# Milne says 6:24:40 was the meridian of the time ball observatory at Rangoon.
# From Paul Eggert (2017-04-20):
# Page 27 of Reed & Low (cited for Asia/Kolkata) says "Rangoon local time is
# used upon the railways and telegraphs of Burma, and is 6h. 24m. 47s. ahead
# of Greenwich." This refers to the period before Burma's transition to +0630,
# a transition for which Shanks is the only source.
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Yangon 6:24:47 - LMT 1880 # or Rangoon
6:24:47 - RMT 1920 # Rangoon local time
6:30 - %z 1942 May
9:00 - %z 1945 May 3
6:30 - %z
# Cambodia
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jul 1
7:06:30 - PLMT 1911 May 1
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 2
7:00 - +07
# China
# From Phake Nick (2020-04-15):
# According to this news report:
# http://news.sina.com.cn/c/2004-09-01/19524201403.shtml
# on April 11, 1919, newspaper in Shanghai said clocks in Shanghai will spring
# forward for an hour starting from midnight of that Saturday. The report did
# not mention what happened in Shanghai thereafter, but it mentioned that a
# similar trial in Tianjin which ended at October 1st as citizens are told to
# recede the clock on September 30 from 12:00pm to 11:00pm. The trial at
# Tianjin got terminated in 1920.
#
# From Paul Eggert (2020-04-15):
# The Returns of Trade and Trade Reports, page 711, says "Daylight saving was
# given a trial during the year, and from the 12th April to the 1st October
# the clocks were all set one hour ahead of sun time. Though the scheme was
# generally esteemed a success, it was announced early in 1920 that it would
# not be repeated."
#
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Shang 1919 only - Apr 12 24:00 1:00 D
Rule Shang 1919 only - Sep 30 24:00 0 S
# From Paul Eggert (2018-10-02):
# The following comes from Table 1 of:
# Li Yu. Research on the daylight saving movement in 1940s Shanghai.
# Nanjing Journal of Social Sciences. 2014;(2):144-50.
# http://oversea.cnki.net/kns55/detail.aspx?dbname=CJFD2014&filename=NJSH201402020
# The table lists dates only; I am guessing 00:00 and 24:00 transition times.
# Also, the table lists the planned end of DST in 1949, but the corresponding
# zone line cuts this off on May 28, when the Communists took power.
# From Phake Nick (2020-04-15):
#
# For the history of time in Shanghai between 1940-1942, the situation is
# actually slightly more complex than the table [below].... At the time,
# there were three different authorities in Shanghai, including Shanghai
# International Settlement, a settlement established by western countries with
# its own westernized form of government, Shanghai French Concession, similar
# to the international settlement but is controlled by French, and then the
# rest of the city of Shanghai, which have already been controlled by Japanese
# force through a puppet local government (Wang Jingwei regime). It was
# additionally complicated by the circumstances that, according to the 1940s
# Shanghai summer time essay cited in the database, some
# departments/businesses/people in the Shanghai city itself during that time
# period, refused to change their clock and instead only changed their opening
# hours.
#
# For example, as quoted in the article, in 1940, other than the authority
# itself, power, tram, bus companies, cinema, department stores, and other
# public service organizations have all decided to follow the summer time and
# spring forward the clock. On the other hand, the custom office refused to
# spring forward the clock because of worry on mechanical wear to the physical
# clock, postal office refused to spring forward because of disruption to
# business and log-keeping, although they did changed their office hour to
# match rest of the city. So is travel agents, and also weather
# observatory. It is said both time standards had their own supporters in the
# city at the time, those who prefer new time standard would have moved their
# clock while those who prefer the old time standard would keep their clock
# unchange, and there were different clocks that use different time standard
# in the city at the time for people who use different time standard to adjust
# their clock to their preferred time.
#
# a. For the 1940 May 31 spring forward, the essay [says] ... "Hong
# Kong government implemented the spring forward in the same time on
# the same date as Shanghai".
#
# b. For the 1940 fall back, it was said that they initially intended to do
# so on September 30 00:59 at night, however they postponed it to October 12
# after discussion with relevant parties. However schools restored to the
# original schedule ten days earlier.
#
# c. For the 1941 spring forward, it is said to start from March 15
# "following the previous year's method", and in addition to that the essay
# cited an announcement in 1941 from the Wang regime which said the Special
# City of Shanghai under Wang regime control will follow the DST rule set by
# the Settlements, irrespective of the original DST plan announced by the Wang
# regime for other area under its control(April 1 to September 30). (no idea
# to situation before that announcement)
#
# d. For the 1941 fall back, it was said that the fall back would occurs at
# the end of September (A newspaper headline cited by the essay, published on
# October 1, 1941, have the headlines which said "French Concession would
# rewind to the old clock this morning), but it ultimately didn't happen due
# to disagreement between the international settlement authority and the
# French concession authority, and the fall back ultimately occurred on
# November 1.
#
# e. In 1941 December, Japan have officially started war with the United
# States and the United Kingdom, and in Shanghai they have marched into the
# international settlement, taken over its control
#
# f. For the 1942 spring forward, the essay said that the spring forward
# started on January 31. It said this time the custom office and postal
# department will also change their clocks, unlike before.
#
# g. The essay itself didn't cover any specific changes thereafter until the
# end of the war, it quoted a November 1942 command from the government of the
# Wang regime, which claim the daylight saving time applies year round during
# the war. However, the essay ambiguously said the period is "February 1 to
# September 30", which I don't really understand what is the meaning of such
# period in the context of year round implementation here.. More researches
# might be needed to show exactly what happened during that period of time.
# From Phake Nick (2020-04-15):
# According to a Japanese tour bus pamphlet in Nanjing area believed to be
# from around year 1941: http://www.tt-museum.jp/tairiku_0280_nan1941.html ,
# the schedule listed was in the format of Japanese time. Which indicate some
# use of the Japanese time (instead of syncing by DST) might have occurred in
# the Yangtze river delta area during that period of time although the scope
# of such use will need to be investigated to determine.
#
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Shang 1940 only - Jun 1 0:00 1:00 D
Rule Shang 1940 only - Oct 12 24:00 0 S
Rule Shang 1941 only - Mar 15 0:00 1:00 D
Rule Shang 1941 only - Nov 1 24:00 0 S
Rule Shang 1942 only - Jan 31 0:00 1:00 D
Rule Shang 1945 only - Sep 1 24:00 0 S
Rule Shang 1946 only - May 15 0:00 1:00 D
Rule Shang 1946 only - Sep 30 24:00 0 S
Rule Shang 1947 only - Apr 15 0:00 1:00 D
Rule Shang 1947 only - Oct 31 24:00 0 S
Rule Shang 1948 1949 - May 1 0:00 1:00 D
Rule Shang 1948 1949 - Sep 30 24:00 0 S #plan
# From Guy Harris:
# People's Republic of China. Yes, they really have only one time zone.
# From Bob Devine (1988-01-28):
# No they don't. See TIME mag, 1986-02-17 p.52. Even though
# China is across 4 physical time zones, before Feb 1, 1986 only the
# Peking (Beijing) time zone was recognized. Since that date, China
# has two of 'em - Peking's and Ürümqi (named after the capital of
# the Xinjiang Uyghur Autonomous Region). I don't know about DST for it.
#
# . . .I just deleted the DST table and this editor makes it too
# painful to suck in another copy. So, here is what I have for
# DST start/end dates for Peking's time zone (info from AP):
#
# 1986 May 4 - Sept 14
# 1987 mid-April - ??
# From U. S. Naval Observatory (1989-01-19):
# CHINA 8 H AHEAD OF UTC ALL OF CHINA, INCL TAIWAN
# CHINA 9 H AHEAD OF UTC APR 17 - SEP 10
# From Paul Eggert (2008-02-11):
# Jim Mann, "A clumsy embrace for another western custom: China on daylight
# time - sort of", Los Angeles Times, 1986-05-05 ... [says] that China began
# observing daylight saving time in 1986.
# From P Chan (2018-05-07):
# The start and end time of DST in China [from 1986 on] should be 2:00
# (i.e. 2:00 to 3:00 at the start and 2:00 to 1:00 at the end)....
# Government notices about summer time:
#
# 1986-04-12 http://www.zj.gov.cn/attach/zfgb/198608.pdf p.21-22
# (To establish summer time from 1986. On 4 May, set the clocks ahead one hour
# at 2 am. On 14 September, set the clocks backward one hour at 2 am.)
#
# 1987-02-15 http://www.gov.cn/gongbao/shuju/1987/gwyb198703.pdf p.114
# (Summer time in 1987 to start from 12 April until 13 September)
#
# 1987-09-09 http://www.gov.cn/gongbao/shuju/1987/gwyb198721.pdf p.709
# (From 1988, summer time to start from 2 am of the first Sunday of mid-April
# until 2 am of the first Sunday of mid-September)
#
# 1992-03-03 http://www.gov.cn/gongbao/shuju/1992/gwyb199205.pdf p.152
# (To suspend summer time from 1992)
#
# The first page of People's Daily on 12 April 1988 stating that summer time
# to begin on 17 April.
# http://data.people.com.cn/pic/101p/1988/04/1988041201.jpg
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule PRC 1986 only - May 4 2:00 1:00 D
Rule PRC 1986 1991 - Sep Sun>=11 2:00 0 S
Rule PRC 1987 1991 - Apr Sun>=11 2:00 1:00 D
# From Anthony Fok (2001-12-20):
# BTW, I did some research on-line and found some info regarding these five
# historic timezones from some Taiwan websites. And yes, there are official
# Chinese names for these locales (before 1949).
#
# From Jesper Nørgaard Welen (2006-07-14):
# I have investigated the timezones around 1970 on the
# https://www.astro.com/atlas site [with provinces and county
# boundaries summarized below].... A few other exceptions were two
# counties on the Sichuan side of the Xizang-Sichuan border,
# counties Dege and Baiyu which lies on the Sichuan side and are
# therefore supposed to be GMT+7, Xizang region being GMT+6, but Dege
# county is GMT+8 according to astro.com while Baiyu county is GMT+6
# (could be true), for the moment I am assuming that those two
# counties are mistakes in the astro.com data.
# From Paul Eggert (2017-01-05):
# Alois Treindl kindly sent me translations of the following two sources:
#
# (1)
# Guo Qing-sheng (National Time-Service Center, CAS, Xi'an 710600, China)
# Beijing Time at the Beginning of the PRC
# China Historical Materials of Science and Technology
# (Zhongguo ke ji shi liao, 中国科技史料). 2003;24(1):5-9.
# http://oversea.cnki.net/kcms/detail/detail.aspx?filename=ZGKS200301000&dbname=CJFD2003
# It gives evidence that at the beginning of the PRC, Beijing time was
# officially apparent solar time! However, Guo also says that the
# evidence is dubious, as the relevant institute of astronomy had not
# been taken over by the PRC yet. It's plausible that apparent solar
# time was announced but never implemented, and that people continued
# to use UT+8. As the Shanghai radio station (and I presume the
# observatory) was still under control of French missionaries, it
# could well have ignored any such mandate.
#
# (2)
# Guo Qing-sheng (Shaanxi Astronomical Observatory, CAS, Xi'an 710600, China)
# A Study on the Standard Time Changes for the Past 100 Years in China
# [undated and unknown publication location]
# It says several things:
# * The Qing dynasty used local apparent solar time throughout China.
# * The Republic of China instituted Beijing mean solar time effective
# the official calendar book of 1914.
# * The French Concession in Shanghai set up signal stations in
# French docks in the 1890s, controlled by Xujiahui (Zikawei)
# Observatory and set to local mean time.
# * "From the end of the 19th century" it changed to UT+8.
# * Chinese Customs (by then reduced to a tool of foreign powers)
# eventually standardized on this time for all ports, and it
# became used by railways as well.
# * In 1918 the Central Observatory proposed dividing China into
# five time zones (see below for details). This caught on
# at first only in coastal areas observing UT+8.
# * During WWII all of China was in theory was at UT+7. In practice
# this was ignored in the west, and I presume was ignored in
# Japanese-occupied territory.
# * Japanese-occupied Manchuria was at UT+9, i.e., Japan time.
# * The five-zone plan was resurrected after WWII and officially put into
# place (with some modifications) in March 1948. It's not clear
# how well it was observed in areas under Nationalist control.
# * The People's Liberation Army used UT+8 during the civil war.
#
# An AP article "Shanghai Internat'l Area Little Changed" in the
# Lewiston (ME) Daily Sun (1939-05-29), p 17, said "Even the time is
# different - the occupied districts going by Tokyo time, an hour
# ahead of that prevailing in the rest of Shanghai." Guess that the
# Xujiahui Observatory was under French control and stuck with UT +08.
#
# In earlier versions of this file, China had many separate Zone entries, but
# this was based on what were apparently incorrect data in Shanks & Pottenger.
# This has now been simplified to the two entries Asia/Shanghai and
# Asia/Urumqi, with the others being links for backward compatibility.
# Proposed in 1918 and theoretically in effect until 1949 (although in practice
# mainly observed in coastal areas), the five zones were:
#
# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) UT +08:30
# Now part of Asia/Shanghai; its pre-1970 times are not recorded here.
# Heilongjiang (except Mohe county), Jilin
#
# Zhongyuan Time ("Central plain Time") UT +08
# Now part of Asia/Shanghai.
# most of China
# Milne gives 8:05:43.2 for Xujiahui Observatory time....
# Guo says Shanghai switched to UT +08 "from the end of the 19th century".
#
# Long-shu Time (probably as Long and Shu were two names of the area) UT +07
# Now part of Asia/Shanghai; its pre-1970 times are not recorded here.
# Guangxi, Guizhou, Hainan, Ningxia, Sichuan, Shaanxi, and Yunnan;
# most of Gansu; west Inner Mongolia; east Qinghai; and the Guangdong
# counties Deqing, Enping, Kaiping, Luoding, Taishan, Xinxing,
# Yangchun, Yangjiang, Yu'nan, and Yunfu.
#
# Xin-zang Time ("Xinjiang-Tibet Time") UT +06
# This region is now part of either Asia/Urumqi or Asia/Shanghai with
# current boundaries uncertain; times before 1970 for areas that
# disagree with Ürümqi or Shanghai are not recorded here.
# The Gansu counties Aksay, Anxi, Dunhuang, Subei; west Qinghai;
# the Guangdong counties Xuwen, Haikang, Suixi, Lianjiang,
# Zhanjiang, Wuchuan, Huazhou, Gaozhou, Maoming, Dianbai, and Xinyi;
# east Tibet, including Lhasa, Chamdo, Shigaise, Jimsar, Shawan and Hutubi;
# east Xinjiang, including Ürümqi, Turpan, Karamay, Korla, Minfeng, Jinghe,
# Wusu, Qiemo, Xinyan, Wulanwusu, Jinghe, Yumin, Tacheng, Tuoli, Emin,
# Shihezi, Changji, Yanqi, Heshuo, Tuokexun, Tulufan, Shanshan, Hami,
# Fukang, Kuitun, Kumukuli, Miquan, Qitai, and Turfan.
#
# Kunlun Time UT +05:30
# This region is now in the same status as Xin-zang Time (see above).
# West Tibet, including Pulan, Aheqi, Shufu, Shule;
# West Xinjiang, including Aksu, Atushi, Yining, Hetian, Cele, Luopu, Nileke,
# Zhaosu, Tekesi, Gongliu, Chabuchaer, Huocheng, Bole, Pishan, Suiding,
# and Yarkand.
# From Luther Ma (2009-10-17):
# Almost all (>99.9%) ethnic Chinese (properly ethnic Han) living in
# Xinjiang use Chinese Standard Time. Some are aware of Xinjiang time,
# but have no need of it. All planes, trains, and schools function on
# what is called "Beijing time." When Han make an appointment in Chinese
# they implicitly use Beijing time.
#
# On the other hand, ethnic Uyghurs, who make up about half the
# population of Xinjiang, typically use "Xinjiang time" which is two
# hours behind Beijing time, or UT +06. The government of the Xinjiang
# Uyghur Autonomous Region, (XAUR, or just Xinjiang for short) as well as
# local governments such as the Ürümqi city government use both times in
# publications, referring to what is popularly called Xinjiang time as
# "Ürümqi time." When Uyghurs make an appointment in the Uyghur language
# they almost invariably use Xinjiang time.
#
# (Their ethnic Han compatriots would typically have no clue of its
# widespread use, however, because so extremely few of them are fluent in
# Uyghur, comparable to the number of Anglo-Americans fluent in Navajo.)
#
# (...As with the rest of China there was a brief interval ending in 1990
# or 1991 when summer time was in use. The confusion was severe, with
# the province not having dual times but four times in use at the same
# time. Some areas remained on standard Xinjiang time or Beijing time and
# others moving their clocks ahead.)
# From Luther Ma (2009-11-19):
# With the risk of being redundant to previous answers these are the most common
# English "transliterations" (w/o using non-English symbols):
#
# 1. Wulumuqi...
# 2. Kashi...
# 3. Urumqi...
# 4. Kashgar...
# ...
# 5. It seems that Uyghurs in Ürümqi has been using Xinjiang since at least the
# 1960's. I know of one Han, now over 50, who grew up in the surrounding
# countryside and used Xinjiang time as a child.
#
# 6. Likewise for Kashgar and the rest of south Xinjiang I don't know of any
# start date for Xinjiang time.
#
# Without having access to local historical records, nor the ability to legally
# publish them, I would go with October 1, 1949, when Xinjiang became the Uyghur
# Autonomous Region under the PRC. (Before that Uyghurs, of course, would also
# not be using Beijing time, but some local time.)
# From David Cochrane (2014-03-26):
# Just a confirmation that Ürümqi time was implemented in Ürümqi on 1 Feb 1986:
# https://content.time.com/time/magazine/article/0,9171,960684,00.html
# From Luther Ma (2014-04-22):
# I have interviewed numerous people of various nationalities and from
# different localities in Xinjiang and can confirm the information in Guo's
# report regarding Xinjiang, as well as the Time article reference by David
# Cochrane. Whether officially recognized or not (and both are officially
# recognized), two separate times have been in use in Xinjiang since at least
# the Cultural Revolution: Xinjiang Time (XJT), aka Ürümqi Time or local time;
# and Beijing Time. There is no confusion in Xinjiang as to which name refers
# to which time. Both are widely used in the province, although in some
# population groups might be use one to the exclusion of the other. The only
# problem is that computers and smart phones list Ürümqi (or Kashgar) as
# having the same time as Beijing.
# From Paul Eggert (2014-06-30):
# In the early days of the PRC, Tibet was given its own time zone (UT +06)
# but this was withdrawn in 1959 and never reinstated; see Tubten Khétsun,
# Memories of life in Lhasa under Chinese Rule, Columbia U Press, ISBN
# 978-0231142861 (2008), translator's introduction by Matthew Akester, p x.
# As this is before our 1970 cutoff, Tibet doesn't need a separate zone.
#
# Xinjiang Time is well-documented as being officially recognized. E.g., see
# "The Working-Calendar for The Xinjiang Uygur Autonomous Region Government"
# (2014-04-22).
# Unfortunately, we have no good records of time in Xinjiang before 1986.
# During the 20th century parts of Xinjiang were ruled by the Qing dynasty,
# the Republic of China, various warlords, the First and Second East Turkestan
# Republics, the Soviet Union, the Kuomintang, and the People's Republic of
# China, and tracking down all these organizations' timekeeping rules would be
# quite a trick. Approximate this lost history by a transition from LMT to
# UT +06 at the start of 1928, the year of accession of the warlord Jin Shuren,
# which happens to be the date given by Shanks & Pottenger (no doubt as a
# guess) as the transition from LMT. Ignore the usage of +08 before
# 1986-02-01 under the theory that the transition date to +08 is unknown and
# that the sort of users who prefer Asia/Urumqi now typically ignored the
# +08 mandate back then.
# Zone NAME STDOFF RULES FORMAT [UNTIL]
# Beijing time, used throughout China; represented by Shanghai.
#STDOFF 8:05:43.2
Zone Asia/Shanghai 8:05:43 - LMT 1901
8:00 Shang C%sT 1949 May 28
8:00 PRC C%sT
# Xinjiang time, used by many in western China; represented by Ürümqi / Ürümchi
# / Wulumuqi. (Please use Asia/Shanghai if you prefer Beijing time.)
Zone Asia/Urumqi 5:50:20 - LMT 1928
6:00 - %z
# Hong Kong
# Milne gives 7:36:41.7.
# From Lee Yiu Chung (2009-10-24):
# I found there are some mistakes for the...DST rule for Hong
# Kong. [According] to the DST record from Hong Kong Observatory (actually,
# it is not [an] observatory, but the official meteorological agency of HK,
# and also serves as the official timing agency), there are some missing
# and incorrect rules. Although the exact switch over time is missing, I
# think 3:30 is correct.
# From Phake Nick (2018-10-27):
# According to Singaporean newspaper
# http://eresources.nlb.gov.sg/newspapers/Digitised/Article/singfreepresswk19041102-1.2.37
# the day that Hong Kong start using GMT+8 should be Oct 30, 1904.
#
# From Paul Eggert (2018-11-17):
# Hong Kong had a time ball near the Marine Police Station, Tsim Sha Tsui.
# "The ball was raised manually each day and dropped at exactly 1pm
# (except on Sundays and Government holidays)."
# Dyson AD. From Time Ball to Atomic Clock. Hong Kong Government. 1983.
#
# "From 1904 October 30 the time-ball at Hong Kong has been dropped by order
# of the Governor of the Colony at 17h 0m 0s G.M.T., which is 23m 18s.14 in
# advance of 1h 0m 0s of Hong Kong mean time."
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc.
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382
#
# From Joseph Myers (2018-11-18):
# An astronomer before 1925 referring to GMT would have been using the old
# astronomical convention where the day started at noon, not midnight.
#
# From Steve Allen (2018-11-17):
# Meteorological Observations made at the Hongkong Observatory in the year 1904
# page 4
# ... the log of drop times in Table II shows that on Sunday 1904-10-30 the
# ball was dropped. So that looks like a special case drop for the sake
# of broadcasting the new local time.
#
# From Phake Nick (2018-11-18):
# According to The Hong Kong Weekly Press, 1904-10-29, p.324, the
# governor of Hong Kong at the time stated that "We are further desired to
# make it known that the change will be effected by firing the gun and by the
# dropping of the Ball at 23min. 18sec. before one."
# From Paul Eggert (2018-11-18):
# See for this; unfortunately Flash is required.
# From Phake Nick (2018-10-26):
# I went to check microfilm records stored at Hong Kong Public Library....
# on September 30 1941, according to Ta Kung Pao (Hong Kong edition), it was
# stated that fallback would occur on the next day (the 1st)'s "03:00 am (Hong
# Kong Time 04:00 am)" and the clock will fall back for a half hour. (03:00
# probably refer to the time commonly used in mainland China at the time given
# the paper's background) ... the sunrise/sunset time given by South China
# Morning Post for October 1st was indeed moved by half an hour compares to
# before. After that, in December, the battle to capture Hong Kong started and
# the library doesn't seems to have any record stored about press during that
# period of time. Some media resumed publication soon after that within the
# same month, but there were not much information about time there. Later they
# started including a radio program guide when they restored radio service,
# explicitly mentioning it use Tokyo standard time, and later added a note
# saying it's half an hour ahead of the old Hong Kong standard time, and it
# also seems to indicate that Hong Kong was not using GMT+8 when it was
# captured by Japan.
#
# Image of related sections on newspaper:
# * 1941-09-30, Ta Kung Pao (Hong Kong), "Winter Time start tomorrow".
# https://i.imgur.com/6waY51Z.jpg (Chinese)
# * 1941-09-29, South China Morning Post, Information on sunrise/sunset
# time and other things for September 30 and October 1.
# https://i.imgur.com/kCiUR78.jpg
# * 1942-02-05. The Hong Kong News, Radio Program Guide.
# https://i.imgur.com/eVvDMzS.jpg
# * 1941-06-14. Hong Kong Daily Press, Daylight Saving from 3am Tomorrow.
# https://i.imgur.com/05KkvtC.png
# * 1941-09-30, Hong Kong Daily Press, Winter Time Warning.
# https://i.imgur.com/dge4kFJ.png
# From Paul Eggert (2019-07-11):
# "Hong Kong winter time" is considered to be daylight saving.
# "Hong Kong had adopted daylight saving on June 15 as a wartime measure,
# clocks moving forward one hour until October 1, when they would be put back
# by just half an hour for 'Hong Kong Winter time', so that daylight saving
# operated year round." -- Low Z. The longest day: when wartime Hong Kong
# introduced daylight saving. South China Morning Post. 2019-06-28.
# https://www.scmp.com/magazines/post-magazine/short-reads/article/3016281/longest-day-when-wartime-hong-kong-introduced
# From P Chan (2018-12-31):
# * According to the Hong Kong Daylight-Saving Regulations, 1941, the
# 1941 spring-forward transition was at 03:00.
# http://sunzi.lib.hku.hk/hkgro/view/g1941/304271.pdf
# http://sunzi.lib.hku.hk/hkgro/view/g1941/305516.pdf
# * According to some articles from South China Morning Post, +08 was
# resumed on 1945-11-18 at 02:00.
# https://i.imgur.com/M2IsZ3c.png
# https://i.imgur.com/iOPqrVo.png
# https://i.imgur.com/fffcGDs.png
# * Some newspapers ... said the 1946 spring-forward transition was on
# 04-21 at 00:00. The Kung Sheung Evening News 1946-04-20 (Chinese)
# https://i.imgur.com/ZSzent0.png
# https://mmis.hkpl.gov.hk///c/portal/cover?c=QF757YsWv5%2FH7zGe%2FKF%2BFLYsuqGhRBfe p.4
# The Kung Sheung Daily News 1946-04-21 (Chinese)
# https://i.imgur.com/7ecmRlcm.png
# https://mmis.hkpl.gov.hk///c/portal/cover?c=QF757YsWv5%2BQBGt1%2BwUj5qG2GqtwR3Wh p.4
# * According to the Summer Time Ordinance (1946), the fallback
# transitions between 1946 and 1952 were at 03:30 Standard Time (+08)
# http://oelawhk.lib.hku.hk/archive/files/bb74b06a74d5294620a15de560ab33c6.pdf
# * Some other laws and regulations related to DST from 1953 to 1979
# Summer Time Ordinance 1953
# https://i.imgur.com/IOlJMav.jpg
# Summer Time (Amendment) Ordinance 1965
# https://i.imgur.com/8rofeLa.jpg
# Interpretation and General Clauses Ordinance (1966)
# https://i.imgur.com/joy3msj.jpg
# Emergency (Summer Time) Regulation 1973
# Interpretation and General Clauses (Amendment) Ordinance 1977
# https://i.imgur.com/RaNqnc4.jpg
# Resolution of the Legislative Council passed on 9 May 1979
# https://www.legco.gov.hk/yr78-79/english/lc_sitg/hansard/h790509.pdf#page=39
# From Paul Eggert (2020-04-15):
# Here are the dates given at
# https://www.hko.gov.hk/en/gts/time/Summertime.htm
# as of 2020-02-10:
# Year Period
# 1941 15 Jun to 30 Sep
# 1942 Whole year
# 1943 Whole year
# 1944 Whole year
# 1945 Whole year
# 1946 20 Apr to 1 Dec
# 1947 13 Apr to 30 Nov
# 1948 2 May to 31 Oct
# 1949 3 Apr to 30 Oct
# 1950 2 Apr to 29 Oct
# 1951 1 Apr to 28 Oct
# 1952 6 Apr to 2 Nov
# 1953 5 Apr to 1 Nov
# 1954 21 Mar to 31 Oct
# 1955 20 Mar to 6 Nov
# 1956 18 Mar to 4 Nov
# 1957 24 Mar to 3 Nov
# 1958 23 Mar to 2 Nov
# 1959 22 Mar to 1 Nov
# 1960 20 Mar to 6 Nov
# 1961 19 Mar to 5 Nov
# 1962 18 Mar to 4 Nov
# 1963 24 Mar to 3 Nov
# 1964 22 Mar to 1 Nov
# 1965 18 Apr to 17 Oct
# 1966 17 Apr to 16 Oct
# 1967 16 Apr to 22 Oct
# 1968 21 Apr to 20 Oct
# 1969 20 Apr to 19 Oct
# 1970 19 Apr to 18 Oct
# 1971 18 Apr to 17 Oct
# 1972 16 Apr to 22 Oct
# 1973 22 Apr to 21 Oct
# 1973/74 30 Dec 73 to 20 Oct 74
# 1975 20 Apr to 19 Oct
# 1976 18 Apr to 17 Oct
# 1977 Nil
# 1978 Nil
# 1979 13 May to 21 Oct
# 1980 to Now Nil
# The page does not give times of day for transitions,
# or dates for the 1942 and 1945 transitions.
# The Japanese occupation of Hong Kong began 1941-12-25.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule HK 1946 only - Apr 21 0:00 1:00 S
Rule HK 1946 only - Dec 1 3:30s 0 -
Rule HK 1947 only - Apr 13 3:30s 1:00 S
Rule HK 1947 only - Nov 30 3:30s 0 -
Rule HK 1948 only - May 2 3:30s 1:00 S
Rule HK 1948 1952 - Oct Sun>=28 3:30s 0 -
Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S
Rule HK 1953 1964 - Oct Sun>=31 3:30 0 -
Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S
Rule HK 1965 1976 - Apr Sun>=16 3:30 1:00 S
Rule HK 1965 1976 - Oct Sun>=16 3:30 0 -
Rule HK 1973 only - Dec 30 3:30 1:00 S
Rule HK 1979 only - May 13 3:30 1:00 S
Rule HK 1979 only - Oct 21 3:30 0 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
#STDOFF 7:36:41.7
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 29 17:00u
8:00 - HKT 1941 Jun 15 3:00
8:00 1:00 HKST 1941 Oct 1 4:00
8:00 0:30 HKWT 1941 Dec 25
9:00 - JST 1945 Nov 18 2:00
8:00 HK HK%sT
###############################################################################
# Taiwan
# From smallufo (2010-04-03):
# According to Taiwan's CWB [Central Weather Bureau],
# http://www.cwb.gov.tw/V6/astronomy/cdata/summert.htm
# Taipei has DST in 1979 between July 1st and Sep 30.
# From Yu-Cheng Chuang (2013-07-12):
# On Dec 28, 1895, the Meiji Emperor announced Ordinance No. 167 of
# Meiji Year 28 "The clause about standard time", mentioned that
# Taiwan and Penghu Islands, as well as Yaeyama and Miyako Islands
# (both in Okinawa) adopt the Western Standard Time which is based on
# 120E. The adoption began from Jan 1, 1896. The original text can be
# found on Wikisource:
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
# ... This could be the first adoption of time zone in Taiwan, because
# during the Qing Dynasty, it seems that there was no time zone
# declared officially.
#
# Later, in the beginning of World War II, on Sep 25, 1937, the Showa
# Emperor announced Ordinance No. 529 of Showa Year 12 "The clause of
# revision in the ordinance No. 167 of Meiji year 28 about standard
# time", in which abolished the adoption of Western Standard Time in
# western islands (listed above), which means the whole Japan
# territory, including later occupations, adopt Japan Central Time
# (UT+9). The adoption began on Oct 1, 1937. The original text can
# be found on Wikisource:
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
#
# That is, the time zone of Taipei switched to UT+9 on Oct 1, 1937.
# From Yu-Cheng Chuang (2014-07-02):
# I've found more evidence about when the time zone was switched from UT+9
# back to UT+8 after WW2. I believe it was on Sep 21, 1945. In a document
# during Japanese era [1] in which the officer told the staff to change time
# zone back to Western Standard Time (UT+8) on Sep 21. And in another
# history page of National Cheng Kung University [2], on Sep 21 there is a
# note "from today, switch back to Western Standard Time". From these two
# materials, I believe that the time zone change happened on Sep 21. And
# today I have found another monthly journal called "The Astronomical Herald"
# from The Astronomical Society of Japan [3] in which it mentioned the fact
# that:
#
# 1. Standard Time of the Country (Japan) was adopted on Jan 1, 1888, using
# the time at 135E (GMT+9)
#
# 2. Standard Time of the Country was renamed to Central Standard Time, on Jan
# 1, 1898, and on the same day, the new territories Taiwan and Penghu islands,
# as well as Yaeyama and Miyako islands, adopted a new time zone called
# Western Standard Time, which is in GMT+8.
#
# 3. Western Standard Time was deprecated on Sep 30, 1937. From then all the
# territories of Japan adopted the same time zone, which is Central Standard
# Time.
#
# [1] Academica Historica, Taiwan:
# http://163.29.208.22:8080/govsaleShowImage/connect_img.php?s=00101738900090036&e=00101738900090037
# [2] Nat'l Cheng Kung University 70th Anniversary Special Site:
# http://www.ncku.edu.tw/~ncku70/menu/001/01_01.htm
# [3] Yukio Niimi, The Standard Time in Japan (1997), p.475:
# http://www.asj.or.jp/geppou/archive_open/1997/pdf/19971001c.pdf
# Yu-Cheng Chuang (2014-07-03):
# I finally have found the real official gazette about changing back to
# Western Standard Time on Sep 21 in Taiwan. It's Taiwan Governor-General
# Bulletin No. 386 in Showa 20 years (1945), published on Sep 19, 1945. [1] ...
# [It] abolishes Bulletin No. 207 in Showa 12 years (1937), which is a local
# bulletin in Taiwan for that Ordinance No. 529. It also mentioned that 1am on
# Sep 21, 1945 will be 12am on Sep 21. I think this bulletin is much more
# official than the one I mentioned in my first mail, because it's from the
# top-level government in Taiwan. If you're going to quote any resource, this
# would be a good one.
# [1] Taiwan Governor-General Gazette, No. 1018, Sep 19, 1945:
# http://db2.th.gov.tw/db2/view/viewImg.php?imgcode=0072031018a&num=19&bgn=019&end=019&otherImg=&type=gener
# From Yu-Cheng Chuang (2014-07-02):
# In 1946, DST in Taiwan was from May 15 and ended on Sep 30. The info from
# Central Weather Bureau website was not correct.
#
# Original Bulletin:
# http://subtpg.tpg.gov.tw/og/image2.asp?f=03502F0AKM1AF
# http://subtpg.tpg.gov.tw/og/image2.asp?f=0350300AKM1B0 (cont.)
#
# In 1947, DST in Taiwan was expanded to Oct 31. There is a backup of that
# telegram announcement from Taiwan Province Government:
#
# http://subtpg.tpg.gov.tw/og/image2.asp?f=0360310AKZ431
#
# Here is a brief translation:
#
# The Summer Time this year is adopted from midnight Apr 15 until Sep 20
# midnight. To save (energy?) consumption, we're expanding Summer Time
# adoption till Oct 31 midnight.
#
# The Central Weather Bureau website didn't mention that, however it can
# be found from historical government announcement database.
# From Paul Eggert (2014-07-03):
# As per Yu-Cheng Chuang, say that Taiwan was at UT +09 from 1937-10-01
# until 1945-09-21 at 01:00, overriding Shanks & Pottenger.
# Likewise, use Yu-Cheng Chuang's data for DST in Taiwan.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Taiwan 1946 only - May 15 0:00 1:00 D
Rule Taiwan 1946 only - Oct 1 0:00 0 S
Rule Taiwan 1947 only - Apr 15 0:00 1:00 D
Rule Taiwan 1947 only - Nov 1 0:00 0 S
Rule Taiwan 1948 1951 - May 1 0:00 1:00 D
Rule Taiwan 1948 1951 - Oct 1 0:00 0 S
Rule Taiwan 1952 only - Mar 1 0:00 1:00 D
Rule Taiwan 1952 1954 - Nov 1 0:00 0 S
Rule Taiwan 1953 1959 - Apr 1 0:00 1:00 D
Rule Taiwan 1955 1961 - Oct 1 0:00 0 S
Rule Taiwan 1960 1961 - Jun 1 0:00 1:00 D
Rule Taiwan 1974 1975 - Apr 1 0:00 1:00 D
Rule Taiwan 1974 1975 - Oct 1 0:00 0 S
Rule Taiwan 1979 only - Jul 1 0:00 1:00 D
Rule Taiwan 1979 only - Oct 1 0:00 0 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
# Taipei or Taibei or T'ai-pei
Zone Asia/Taipei 8:06:00 - LMT 1896 Jan 1
8:00 - CST 1937 Oct 1
9:00 - JST 1945 Sep 21 1:00
8:00 Taiwan C%sT
# Macau (Macao, Aomen)
#
# From P Chan (2018-05-10):
# * LegisMac
# http://legismac.safp.gov.mo/legismac/descqry/Descqry.jsf?lang=pt
# A database for searching titles of legal documents of Macau in
# Chinese and Portuguese. The term "HORÁRIO DE VERÃO" can be used for
# searching decrees about summer time.
# * Archives of Macao
# http://www.archives.gov.mo/en/bo/
# It contains images of old official gazettes.
# * The Macao Meteorological and Geophysical Bureau have a page listing the
# summer time history. But it is not complete and has some mistakes.
# http://www.smg.gov.mo/smg/geophysics/e_t_Summer%20Time.htm
# Macau adopted GMT+8 on 30 Oct 1904 to follow Hong Kong. Clocks were
# advanced by 25 minutes and 50 seconds. Which means the LMT used was
# +7:34:10. As stated in the "Portaria No. 204" dated 21 October 1904
# and published in the Official Gazette on 29 October 1904.
# http://igallery.icm.gov.mo/Images/Archives/BO/MO_AH_PUB_BO_1904_10/MO_AH_PUB_BO_1904_10_00025_Grey.JPG
#
# Therefore the 1911 decree of Portugal did not change time in Macau.
#
# From LegisMac, here is a list of decrees that changed the time ...
# [Decree Gazette-no. date; titles omitted in this quotation]
# DIL 732 BOCM 51 1941.12.20
# DIL 764 BOCM 9S 1942.04.30
# DIL 781 BOCM 21 1942.10.10
# PT 3434 BOCM 8S 1943.04.17
# PT 3504 BOCM 20 1943.09.25
# PT 3843 BOCM 39 1945.09.29
# PT 3961 BOCM 17 1946.04.27
# PT 4026 BOCM 39 1946.09.28
# PT 4153 BOCM 16 1947.04.10
# PT 4271 BOCM 48 1947.11.29
# PT 4374 BOCM 18 1948.05.01
# PT 4465 BOCM 44 1948.10.30
# PT 4590 BOCM 14 1949.04.02
# PT 4666 BOCM 44 1949.10.29
# PT 4771 BOCM 12 1950.03.25
# PT 4838 BOCM 43 1950.10.28
# PT 4946 BOCM 12 1951.03.24
# PT 5025 BO 43 1951.10.27
# PT 5149 BO 14 1952.04.05
# PT 5251 BO 43 1952.10.25
# PT 5366 BO 13 1953.03.28
# PT 5444 BO 44 1953.10.31
# PT 5540 BO 12 1954.03.20
# PT 5589 BO 44 1954.10.30
# PT 5676 BO 12 1955.03.19
# PT 5739 BO 45 1955.11.05
# PT 5823 BO 11 1956.03.17
# PT 5891 BO 44 1956.11.03
# PT 5981 BO 12 1957.03.23
# PT 6064 BO 43 1957.10.26
# PT 6172 BO 12 1958.03.22
# PT 6243 BO 43 1958.10.25
# PT 6341 BO 12 1959.03.21
# PT 6411 BO 43 1959.10.24
# PT 6514 BO 11 1960.03.12
# PT 6584 BO 44 1960.10.29
# PT 6721 BO 10 1961.03.11
# PT 6815 BO 43 1961.10.28
# PT 6947 BO 10 1962.03.10
# PT 7080 BO 43 1962.10.27
# PT 7218 BO 12 1963.03.23
# PT 7340 BO 43 1963.10.26
# PT 7491 BO 11 1964.03.14
# PT 7664 BO 43 1964.10.24
# PT 7846 BO 15 1965.04.10
# PT 7979 BO 42 1965.10.16
# PT 8146 BO 15 1966.04.09
# PT 8252 BO 41 1966.10.08
# PT 8429 BO 15 1967.04.15
# PT 8540 BO 41 1967.10.14
# PT 8735 BO 15 1968.04.13
# PT 8860 BO 41 1968.10.12
# PT 9035 BO 16 1969.04.19
# PT 9156 BO 42 1969.10.18
# PT 9328 BO 15 1970.04.11
# PT 9418 BO 41 1970.10.10
# PT 9587 BO 14 1971.04.03
# PT 9702 BO 41 1971.10.09
# PT 38-A/72 BO 14 1972.04.01
# PT 126-A/72 BO 41 1972.10.07
# PT 61/73 BO 14 1973.04.07
# PT 182/73 BO 40 1973.10.06
# PT 282/73 BO 51 1973.12.22
# PT 177/74 BO 41 1974.10.12
# PT 51/75 BO 15 1975.04.12
# PT 173/75 BO 41 1975.10.11
# PT 67/76/M BO 14 1976.04.03
# PT 169/76/M BO 41 1976.10.09
# PT 78/79/M BO 19 1979.05.12
# PT 166/79/M BO 42 1979.10.20
# Note that DIL 732 does not belong to "HORÁRIO DE VERÃO" according to
# LegisMac.... Note that between 1942 and 1945, the time switched
# between GMT+9 and GMT+10. Also in 1965 and 1965 the DST ended at 2:30am.
# From Paul Eggert (2018-05-10):
# The 1904 decree says that Macau changed from the meridian of
# Fortaleza do Monte, presumably the basis for the 7:34:10 for LMT.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Macau 1942 1943 - Apr 30 23:00 1:00 -
Rule Macau 1942 only - Nov 17 23:00 0 -
Rule Macau 1943 only - Sep 30 23:00 0 S
Rule Macau 1946 only - Apr 30 23:00s 1:00 D
Rule Macau 1946 only - Sep 30 23:00s 0 S
Rule Macau 1947 only - Apr 19 23:00s 1:00 D
Rule Macau 1947 only - Nov 30 23:00s 0 S
Rule Macau 1948 only - May 2 23:00s 1:00 D
Rule Macau 1948 only - Oct 31 23:00s 0 S
Rule Macau 1949 1950 - Apr Sat>=1 23:00s 1:00 D
Rule Macau 1949 1950 - Oct lastSat 23:00s 0 S
Rule Macau 1951 only - Mar 31 23:00s 1:00 D
Rule Macau 1951 only - Oct 28 23:00s 0 S
Rule Macau 1952 1953 - Apr Sat>=1 23:00s 1:00 D
Rule Macau 1952 only - Nov 1 23:00s 0 S
Rule Macau 1953 1954 - Oct lastSat 23:00s 0 S
Rule Macau 1954 1956 - Mar Sat>=17 23:00s 1:00 D
Rule Macau 1955 only - Nov 5 23:00s 0 S
Rule Macau 1956 1964 - Nov Sun>=1 03:30 0 S
Rule Macau 1957 1964 - Mar Sun>=18 03:30 1:00 D
Rule Macau 1965 1973 - Apr Sun>=16 03:30 1:00 D
Rule Macau 1965 1966 - Oct Sun>=16 02:30 0 S
Rule Macau 1967 1976 - Oct Sun>=16 03:30 0 S
Rule Macau 1973 only - Dec 30 03:30 1:00 D
Rule Macau 1975 1976 - Apr Sun>=16 03:30 1:00 D
Rule Macau 1979 only - May 13 03:30 1:00 D
Rule Macau 1979 only - Oct Sun>=16 03:30 0 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Macau 7:34:10 - LMT 1904 Oct 30
8:00 - CST 1941 Dec 21 23:00
9:00 Macau %z 1945 Sep 30 24:00
8:00 Macau C%sT
###############################################################################
# Cyprus
# Milne says the Eastern Telegraph Company used 2:14:00. Stick with LMT.
# IATA SSIM (1998-09) has Cyprus using EU rules for the first time.
# From Paul Eggert (2016-09-09):
# Yesterday's Cyprus Mail reports that Northern Cyprus followed Turkey's
# lead and switched from +02/+03 to +03 year-round.
# http://cyprus-mail.com/2016/09/08/two-time-zones-cyprus-turkey-will-not-turn-clocks-back-next-month/
#
# From Even Scharning (2016-10-31):
# Looks like the time zone split in Cyprus went through last night.
# http://cyprus-mail.com/2016/10/30/cyprus-new-division-two-time-zones-now-reality/
# From Paul Eggert (2017-10-18):
# Northern Cyprus will reinstate winter time on October 29, thus
# staying in sync with the rest of Cyprus. See: Anastasiou A.
# Cyprus to remain united in time. Cyprus Mail 2017-10-17.
# https://cyprus-mail.com/2017/10/17/cyprus-remain-united-time/
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Cyprus 1975 only - Apr 13 0:00 1:00 S
Rule Cyprus 1975 only - Oct 12 0:00 0 -
Rule Cyprus 1976 only - May 15 0:00 1:00 S
Rule Cyprus 1976 only - Oct 11 0:00 0 -
Rule Cyprus 1977 1980 - Apr Sun>=1 0:00 1:00 S
Rule Cyprus 1977 only - Sep 25 0:00 0 -
Rule Cyprus 1978 only - Oct 2 0:00 0 -
Rule Cyprus 1979 1997 - Sep lastSun 0:00 0 -
Rule Cyprus 1981 1998 - Mar lastSun 0:00 1:00 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14
2:00 Cyprus EE%sT 1998 Sep
2:00 EUAsia EE%sT
Zone Asia/Famagusta 2:15:48 - LMT 1921 Nov 14
2:00 Cyprus EE%sT 1998 Sep
2:00 EUAsia EE%sT 2016 Sep 8
3:00 - %z 2017 Oct 29 1:00u
2:00 EUAsia EE%sT
# Georgia
# From Paul Eggert (1994-11-19):
# Today's _Economist_ (p 60) reports that Georgia moved its clocks forward
# an hour recently, due to a law proposed by Zurab Murvanidze,
# an MP who went on a hunger strike for 11 days to force discussion about it!
# We have no details, but we'll guess they didn't move the clocks back in fall.
#
# From Mathew Englander, quoting AP (1996-10-23 13:05-04):
# Instead of putting back clocks at the end of October, Georgia
# will stay on daylight savings time this winter to save energy,
# President Eduard Shevardnadze decreed Wednesday.
#
# From the BBC via Joseph S. Myers (2004-06-27):
#
# Georgia moved closer to Western Europe on Sunday... The former Soviet
# republic has changed its time zone back to that of Moscow. As a result it
# is now just four hours ahead of Greenwich Mean Time, rather than five hours
# ahead. The switch was decreed by the pro-Western president of Georgia,
# Mikheil Saakashvili, who said the change was partly prompted by the process
# of integration into Europe.
# From Teimuraz Abashidze (2005-11-07):
# Government of Georgia ... decided to NOT CHANGE daylight savings time on
# [Oct.] 30, as it was done before during last more than 10 years.
# Currently, we are in fact GMT +4:00, as before 30 October it was GMT
# +3:00.... The problem is, there is NO FORMAL LAW or governmental document
# about it. As far as I can find, I was told, that there is no document,
# because we just DIDN'T ISSUE document about switching to winter time....
# I don't know what can be done, especially knowing that some years ago our
# DST rules where changed THREE TIMES during one month.
# Milne 1899 says Tbilisi (Tiflis) time was 2:59:05.7.
# Byalokoz 1919 says Georgia was 2:59:11.
# Go with Byalokoz.
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Tbilisi 2:59:11 - LMT 1880
2:59:11 - TBMT 1924 May 2 # Tbilisi Mean Time
3:00 - %z 1957 Mar
4:00 RussiaAsia %z 1991 Mar 31 2:00s
3:00 RussiaAsia %z 1992
3:00 E-EurAsia %z 1994 Sep lastSun
4:00 E-EurAsia %z 1996 Oct lastSun
4:00 1:00 %z 1997 Mar lastSun
4:00 E-EurAsia %z 2004 Jun 27
3:00 RussiaAsia %z 2005 Mar lastSun 2:00
4:00 - %z
# East Timor
# From Tim Parenti (2024-07-01):
# The 1912-01-01 transition occurred at 00:00 new time, per the 1911-05-24
# Portuguese decree (see Europe/Lisbon). A provision in article 5(c) of the
# decree prescribed that Timor "will keep counting time in harmony with
# neighboring foreign colonies, [for] as long as they do not adopt the time
# that belongs to them in [the Washington Convention] system."
# See Indonesia for the 1945 transition.
# From João Carrascalão, brother of the former governor of East Timor, in
# East Timor may be late for its millennium
# (1999-12-26/31):
# Portugal tried to change the time forward in 1974 because the sun
# rises too early but the suggestion raised a lot of problems with the
# Timorese and I still don't think it would work today because it
# conflicts with their way of life.
# From Paul Eggert (2000-12-04):
# We don't have any record of the above attempt.
# Most likely our records are incomplete, but we have no better data.
# From Manoel de Almeida e Silva, Deputy Spokesman for the UN Secretary-General
# http://www.hri.org/news/world/undh/2000/00-08-16.undh.html
# (2000-08-16):
# The Cabinet of the East Timor Transition Administration decided
# today to advance East Timor's time by one hour. The time change,
# which will be permanent, with no seasonal adjustment, will happen at
# midnight on Saturday, September 16.
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Dili 8:22:20 - LMT 1911 Dec 31 16:00u
8:00 - %z 1942 Feb 21 23:00
9:00 - %z 1976 May 3
8:00 - %z 2000 Sep 17 0:00
9:00 - %z
# India
# British astronomer Henry Park Hollis disliked India Standard Time's offset:
# "A new time system has been proposed for India, Further India, and Burmah.
# The scheme suggested is that the times of the meridians 5½ and 6½ hours
# east of Greenwich should be adopted in these territories. No reason is
# given why hourly meridians five hours and six hours east should not be
# chosen; a plan which would bring the time of India into harmony with
# that of almost the whole of the civilised world."
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc.
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382
# From Ian P. Beacock, in "A brief history of (modern) time", The Atlantic
# https://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/
# (2015-12-22):
# In January 1906, several thousand cotton-mill workers rioted on the
# outskirts of Bombay.... They were protesting the proposed abolition of
# local time in favor of Indian Standard Time.... Journalists called this
# dispute the "Battle of the Clocks." It lasted nearly half a century.
# From Paul Eggert (2017-04-20):
# Good luck trying to nail down old timekeeping records in India.
# "... in the nineteenth century ... Madras Observatory took its magnetic
# measurements on Göttingen time, its meteorological measurements on Madras
# (local) time, dropped its time ball on Greenwich (ocean navigator's) time,
# and distributed civil (local time)." -- Bartky IR. Selling the true time:
# 19th-century timekeeping in america. Stanford U Press (2000), 247 note 19.
# "A more potent cause of resistance to the general adoption of the present
# standard time lies in the fact that it is Madras time. The citizen of
# Bombay, proud of being 'primus in Indis' and of Calcutta, equally proud of
# his city being the Capital of India, and - for a part of the year - the Seat
# of the Supreme Government, alike look down on Madras, and refuse to change
# the time they are using, for that of what they regard as a benighted
# Presidency; while Madras, having for long given the standard time to the
# rest of India, would resist the adoption of any other Indian standard in its
# place." -- Oldham RD. On Time in India: a suggestion for its improvement.
# Proceedings of the Asiatic Society of Bengal (April 1899), 49-55.
#
# "In 1870 ... Madras time - 'now used by the telegraph and regulated from the
# only government observatory' - was suggested as a standard railway time,
# first to be adopted on the Great Indian Peninsular Railway (GIPR)....
# Calcutta, Bombay, and Karachi, were to be allowed to continue with their
# local time for civil purposes." - Prasad R. Tracks of Change: Railways and
# Everyday Life in Colonial India. Cambridge University Press (2016), 145.
#
# Reed S, Low F. The Indian Year Book 1936-37. Bennett, Coleman, pp 27-8.
# https://archive.org/details/in.ernet.dli.2015.282212
# This lists +052110 as Madras local time used in railways, and says that on
# 1906-01-01 railways and telegraphs in India switched to +0530. Some
# municipalities retained their former time, and the time in Calcutta
# continued to depend on whether you were at the railway station or at
# government offices. Government time was at +055320 (according to Shanks) or
# at +0554 (according to the Indian Year Book). Railway time is more
# appropriate for our purposes, as it was better documented, it is what we do
# elsewhere (e.g., Europe/London before 1880), and after 1906 it was
# consistent in the region now identified by Asia/Kolkata. So, use railway
# time for 1870-1941. Shanks is our only (and dubious) source for the
# 1941-1945 data.
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Kolkata 5:53:28 - LMT 1854 Jun 28 # Kolkata
5:53:20 - HMT 1870 # Howrah Mean Time?
5:21:10 - MMT 1906 Jan 1 # Madras local time
5:30 - IST 1941 Oct
5:30 1:00 %z 1942 May 15
5:30 - IST 1942 Sep
5:30 1:00 %z 1945 Oct 15
5:30 - IST
# Since 1970 the following are like Asia/Kolkata:
# Andaman Is
# Lakshadweep (Laccadive, Minicoy and Amindivi Is)
# Nicobar Is
# Indonesia
#
# From Paul Eggert (2014-09-06):
# The 1876 Report of the Secretary of the [US] Navy, p 306 says that Batavia
# civil time was 7:07:12.5.
#
# From Gwillim Law (2001-05-28), overriding Shanks & Pottenger:
# http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime
# says that Indonesia's time zones changed on 1988-01-01. Looking at some
# time zone maps, I think that must refer to Western Borneo (Kalimantan Barat
# and Kalimantan Tengah) switching from UTC+8 to UTC+7.
#
# From Paul Eggert (2007-03-10):
# Here is another correction to Shanks & Pottenger.
# JohnTWB writes that Japanese forces did not surrender control in
# Indonesia until 1945-09-01 00:00 at the earliest (in Jakarta) and
# other formal surrender ceremonies were September 9, 11, and 13, plus
# September 12 for the regional surrender to Mountbatten in Singapore.
# These would be the earliest possible times for a change.
# Régimes horaires pour le monde entier, by Henri Le Corre, (Éditions
# Traditionnelles, 1987, Paris) says that Java and Madura switched
# from UT +09 to +07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura
# (Hollandia). For now, assume all Indonesian locations other than Jayapura
# switched on 1945-09-23.
#
# From Paul Eggert (2013-08-11):
# Normally the tz database uses English-language abbreviations, but in
# Indonesia it's typical to use Indonesian-language abbreviations even
# when writing in English. For example, see the English-language
# summary published by the Time and Frequency Laboratory of the
# Research Center for Calibration, Instrumentation and Metrology,
# Indonesia, (2006-09-29).
# The time zone abbreviations and UT offsets are:
#
# WIB - +07 - Waktu Indonesia Barat (Indonesia western time)
# WITA - +08 - Waktu Indonesia Tengah (Indonesia central time)
# WIT - +09 - Waktu Indonesia Timur (Indonesia eastern time)
#
# Zone NAME STDOFF RULES FORMAT [UNTIL]
# Java, Sumatra
#STDOFF 7:07:12.5
Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10
# Shanks & Pottenger say the next transition was at 1924 Jan 1 0:13,
# but this must be a typo.
7:07:12 - BMT 1923 Dec 31 16:40u # Batavia
7:20 - %z 1932 Nov
7:30 - %z 1942 Mar 23
9:00 - %z 1945 Sep 23
7:30 - %z 1948 May
8:00 - %z 1950 May
7:30 - %z 1964
7:00 - WIB
# west and central Borneo
Zone Asia/Pontianak 7:17:20 - LMT 1908 May
7:17:20 - PMT 1932 Nov # Pontianak MT
7:30 - %z 1942 Jan 29
9:00 - %z 1945 Sep 23
7:30 - %z 1948 May
8:00 - %z 1950 May
7:30 - %z 1964
8:00 - WITA 1988 Jan 1
7:00 - WIB
# Sulawesi, Lesser Sundas, east and south Borneo
Zone Asia/Makassar 7:57:36 - LMT 1920
7:57:36 - MMT 1932 Nov # Macassar MT
8:00 - %z 1942 Feb 9
9:00 - %z 1945 Sep 23
8:00 - WITA
# Maluku Islands, West Papua, Papua
Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov
9:00 - %z 1944 Sep 1
9:30 - %z 1964
9:00 - WIT
# Iran
# From Roozbeh Pournader (2022-05-30):
# Here's an order from the Cabinet to the rest of the government to switch to
# Tehran time, which is mentioned to be already at +03:30:
# https://qavanin.ir/Law/TreeText/180138
# Just in case that goes away, I also saved a copy at archive.org:
# https://web.archive.org/web/20220530111940/https://qavanin.ir/Law/TreeText/180138
# Here's my translation:
#
# "Circular on Matching the Hours of Governmental and Official Circles
# in Provinces
# Approved 1314/03/22 [=1935-06-13]
# According to the ruling of the Honorable Cabinet, it is ordered that from
# now on in all internal provinces of the country, governmental and official
# circles set their time to match Tehran time (three hours and half before
# Greenwich)....
#
# I still haven't found out when Tehran itself switched to +03:30....
#
# From Paul Eggert (2022-06-05):
# Although the above says Tehran was at +03:30 before 1935-06-13, we don't
# know when it switched to +03:30. For now, use 1935-06-13 as the switch date.
# Although most likely wrong, we have no better info.
# From Roozbeh Pournader (2022-06-01):
# This is from Kayhan newspaper, one of the major Iranian newspapers, from
# March 20, 1978, page 2:
#
# "Pull the clocks 60 minutes forward
# As we informed before, from the fourth day of the month Farvardin of the
# new year [=1978-03-24], clocks will be pulled forward, and people's daily
# work and life program will start one hour earlier than the current program.
# On the 1st day of the month Farvardin of this year [=1977-03-21], they had
# pulled the clocks forward by one hour, but in the month of Mehr
# [=1977-09-23], the clocks were pulled back by 30 minutes.
# In this way, from the 4th day of the month Farvardin, clocks will be ahead
# of the previous years by one hour and a half.
# According to the new program, during the night of 4th of Farvardin, when
# the midnight, meaning 24 o'clock is announced, the hands of the clock must
# be pulled forward by one hour and thus consider midnight 1 o'clock in the
# forenoon."
#
# This implies that in September 1977, when the daylight savings time was
# done with, Iran didn't go back to +03:30, but immediately to +04:00.
#
#
# This is from the major Iranian newspaper Ettela'at, dated [1978-08-03]...,
# page 32. It looks like they decided to get the clocks back to +4:00
# just in time for Ramadan that year:
#
# "Tomorrow Night, Pull the Clocks Back by One Hour
# At 1 o'clock in the forenoon of Saturday 14 Mordad [=1978-08-05], the
# clocks will be pulled one hour back and instead of 1 o'clock in the
# forenoon, Radio Iran will announce 24 o'clock.
# This decision was made in the Cabinet of Ministers meeting of 25 Tir
# [=1978-07-16], [...]
# At the beginning of the year 2537 [=March 1978: Iran was using a different
# year number for a few years then, based on the Coronation of Cyrus the
# Great], the country's official time was pulled forward by one hour and now
# the official time is one hour and a half ahead compared to last year,
# because in Farvardin of last year [=March 1977], the official time was
# pulled forward one hour and this continued until the second half of last
# year [=September 1977] until in the second half of last year the official
# time was pulled back half an hour and that half hour still remains."
#
# This matches the time of the true noon published in the newspapers, as they
# clearly go from +05:00 to +04:00 after that date (which happened during a
# long weekend in Iran).
# From Roozbeh Pournader (2022-05-31):
# [Movahedi S. Cultural preconceptions of time: Can we use operational time
# to meddle in God's Time? Comp Stud Soc Hist. 1985;27(3):385-400]
# https://www.jstor.org/stable/178704
# Here's the quotes from the paper:
# 1. '"Iran's official time keeper moved the clock one hour forward as from
# March 22, 1977 (Farvardin 2, 2536) to make maximum use of daylight and save
# in energy consumption. Thus Iran joined such other countries as Britain in
# observing what is known as 'daylight saving.' The proposal was originally
# put forward by the Ministry of Energy, in no way having any influence on
# observing religious ceremonies. Moving time one hour forward in summer
# means that at 11:00 o'clock on March 21, the official time was set as
# midnight March 22. Then September 24 will actually begin one hour later
# than the end of September 23 [...]." Iran's time base thus continued to be
# Greenwich Mean Time plus three and one-half hours (plus four and one-half
# hours in summer).'
#
# The article sources this from Iran Almanac and Book of Facts, 1977, Tehran:
# Echo of Iran, which is on Google Books at
# https://www.google.com/books/edition/Iran_Almanac_and_Book_of_Facts/9ybVAAAAMAAJ.
# (I confirmed it by searching for snippets.)
#
# 2. "After the fall of the shah, the revolutionary government returned to
# daylight-saving time (DST) on 26 May 1979."
#
# This seems to have been announced just one day in advance, on 25 May 1979.
#
# The change in 1977 clearly seems to be the first daylight savings effort in
# Iran. But the article doesn't mention what happened in 1978 (which was
# still during the shah's government), or how things continued in 1979
# onwards (which was during the Islamic Republic).
# From Francis Santoni (2022-06-01):
# for Iran and 1977 the effective change is only 20 October
# (UIT No. 143 17.XI.1977) and not 23 September (UIT No. 141 13.IX.1977).
# UIT is the Operational Bulletin of International Telecommunication Union.
# From Roozbeh Pournader (2025-03-18):
# ... the exact time of Iran's transition from +0400 to +0330 ... was Friday
# 1357/8/19 AP=1978-11-10. Here's a newspaper clip from the Ettela'at
# newspaper, dated 1357/8/14 AP=1978-11-05, translated from Persian
# (at https://w.wiki/DUEY):
# Following the government's decision about returning the official time
# to the previous status, the spokesperson for the Ministry of Energy
# announced today: At the hour 24 of Friday 19th of Aban (=1978-11-10),
# the country's time will be pulled back half an hour.
#
# From Roozbeh Pournader (2003-03-15):
# This is an English translation of what I just found (originally in Persian).
# The Gregorian dates in brackets are mine:
#
# Official Newspaper No. 13548-1370/6/25 [1991-09-16]
# No. 16760/T233 H 1370/6/10 [1991-09-01]
#
# The Rule About Change of the Official Time of the Country
#
# The Board of Ministers, in the meeting dated 1370/5/23 [1991-08-14],
# based on the suggestion number 2221/D dated 1370/4/22 [1991-07-13]
# of the Country's Organization for Official and Employment Affairs,
# and referring to the law for equating the working hours of workers
# and officers in the whole country dated 1359/4/23 [1980-07-14], and
# for synchronizing the official times of the country, agreed that:
#
# The official time of the country will should move forward one hour
# at the 24[:00] hours of the first day of Farvardin and should return
# to its previous state at the 24[:00] hours of the 30th day of
# Shahrivar.
#
# First Deputy to the President - Hassan Habibi
#
# From personal experience, that agrees with what has been followed
# for at least the last 5 years. Before that, for a few years, the
# date used was the first Thursday night of Farvardin and the last
# Thursday night of Shahrivar, but I can't give exact dates....
#
# From Roozbeh Pournader (2005-04-05):
# The text of the Iranian law, in effect since 1925, clearly mentions
# that the true solar year is the measure, and there is no arithmetic
# leap year calculation involved. There has never been any serious
# plan to change that law....
#
# From Paul Eggert (2022-06-30):
# Go with Pournader for 1935 through spring 1979, and for timestamps
# after August 1991; go with with Shanks & Pottenger for other timestamps.
# Go with Santoni's citation of the UIT for fall 1977, as 20 October 1977
# is 28 Mehr 1356, consistent with the "Mehr" in Pournader's source.
# Assume that the UIT's "1930" is UTC, i.e., 24:00 local time.
#
# From Oscar van Vlijmen (2005-03-30), writing about future
# discrepancies between cal-persia and the Iranian calendar:
# For 2091 solar-longitude-after yields 2091-03-20 08:40:07.7 UT for
# the vernal equinox and that gets so close to 12:00 some local
# Iranian time that the definition of the correct location needs to be
# known exactly, amongst other factors. 2157 is even closer:
# 2157-03-20 08:37:15.5 UT. But the Gregorian year 2025 should give
# no interpretation problem whatsoever. By the way, another instant
# in the near future where there will be a discrepancy between
# arithmetical and astronomical Iranian calendars will be in 2058:
# vernal equinox on 2058-03-20 09:03:05.9 UT. The Java version of
# Reingold's/Dershowitz' calculator gives correctly the Gregorian date
# 2058-03-21 for 1 Farvardin 1437 (astronomical).
#
# From Steffen Thorsen (2006-03-22):
# Several of my users have reported that Iran will not observe DST anymore:
# http://www.irna.ir/en/news/view/line-17/0603193812164948.htm
#
# From Reuters (2007-09-16), with a heads-up from Jesper Nørgaard Welen:
# ... the Guardian Council ... approved a law on Sunday to re-introduce
# daylight saving time ...
# https://uk.reuters.com/article/oilRpt/idUKBLA65048420070916
#
# From Roozbeh Pournader (2007-11-05):
# This is quoted from Official Gazette of the Islamic Republic of
# Iran, Volume 63, No. 18242, dated Tuesday 1386/6/24
# [2007-10-16]. I am doing the best translation I can:...
# The official time of the country will be moved forward for one hour
# on the 24 hours of the first day of the month of Farvardin and will
# be changed back to its previous state on the 24 hours of the
# thirtieth day of Shahrivar.
#
# From Ali Mirjamali (2022-05-10):
# Official IR News Agency announcement: irna.ir/xjJ3TT
# ...
# Highlights: DST will be cancelled for the next Iranian year 1402
# (i.e 2023-March-21) and forthcoming years.
#
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
# Work around a bug in zic 2022a and earlier.
Rule Iran 1910 only - Jan 1 00:00 0 -
#
Rule Iran 1977 only - Mar 21 23:00 1:00 -
Rule Iran 1977 only - Oct 20 24:00 0 -
Rule Iran 1978 only - Mar 24 24:00 1:00 -
Rule Iran 1978 only - Aug 5 01:00 0 -
Rule Iran 1979 only - May 26 24:00 1:00 -
Rule Iran 1979 only - Sep 18 24:00 0 -
Rule Iran 1980 only - Mar 20 24:00 1:00 -
Rule Iran 1980 only - Sep 22 24:00 0 -
Rule Iran 1991 only - May 2 24:00 1:00 -
Rule Iran 1992 1995 - Mar 21 24:00 1:00 -
Rule Iran 1991 1995 - Sep 21 24:00 0 -
Rule Iran 1996 only - Mar 20 24:00 1:00 -
Rule Iran 1996 only - Sep 20 24:00 0 -
Rule Iran 1997 1999 - Mar 21 24:00 1:00 -
Rule Iran 1997 1999 - Sep 21 24:00 0 -
Rule Iran 2000 only - Mar 20 24:00 1:00 -
Rule Iran 2000 only - Sep 20 24:00 0 -
Rule Iran 2001 2003 - Mar 21 24:00 1:00 -
Rule Iran 2001 2003 - Sep 21 24:00 0 -
Rule Iran 2004 only - Mar 20 24:00 1:00 -
Rule Iran 2004 only - Sep 20 24:00 0 -
Rule Iran 2005 only - Mar 21 24:00 1:00 -
Rule Iran 2005 only - Sep 21 24:00 0 -
Rule Iran 2008 only - Mar 20 24:00 1:00 -
Rule Iran 2008 only - Sep 20 24:00 0 -
Rule Iran 2009 2011 - Mar 21 24:00 1:00 -
Rule Iran 2009 2011 - Sep 21 24:00 0 -
Rule Iran 2012 only - Mar 20 24:00 1:00 -
Rule Iran 2012 only - Sep 20 24:00 0 -
Rule Iran 2013 2015 - Mar 21 24:00 1:00 -
Rule Iran 2013 2015 - Sep 21 24:00 0 -
Rule Iran 2016 only - Mar 20 24:00 1:00 -
Rule Iran 2016 only - Sep 20 24:00 0 -
Rule Iran 2017 2019 - Mar 21 24:00 1:00 -
Rule Iran 2017 2019 - Sep 21 24:00 0 -
Rule Iran 2020 only - Mar 20 24:00 1:00 -
Rule Iran 2020 only - Sep 20 24:00 0 -
Rule Iran 2021 2022 - Mar 21 24:00 1:00 -
Rule Iran 2021 2022 - Sep 21 24:00 0 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Tehran 3:25:44 - LMT 1916
3:25:44 - TMT 1935 Jun 13 # Tehran Mean Time
3:30 Iran %z 1977 Oct 20 24:00
4:00 Iran %z 1978 Nov 10 24:00
3:30 Iran %z
# Iraq
#
# From Jonathan Lennox (2000-06-12):
# An article in this week's Economist ("Inside the Saddam-free zone", p. 50 in
# the U.S. edition) on the Iraqi Kurds contains a paragraph:
# "The three northern provinces ... switched their clocks this spring and
# are an hour ahead of Baghdad."
#
# But Rives McDow (2000-06-18) quotes a contact in Iraqi-Kurdistan as follows:
# In the past, some Kurdish nationalists, as a protest to the Iraqi
# Government, did not adhere to daylight saving time. They referred
# to daylight saving as Saddam time. But, as of today, the time zone
# in Iraqi-Kurdistan is on standard time with Baghdad, Iraq.
#
# So we'll ignore the Economist's claim.
# From Steffen Thorsen (2008-03-10):
# The cabinet in Iraq abolished DST last week, according to the following
# news sources (in Arabic):
# http://www.aljeeran.net/wesima_articles/news-20080305-98602.html
# http://www.aswataliraq.info/look/article.tpl?id=2047&IdLanguage=17&IdPublication=4&NrArticle=71743&NrIssue=1&NrSection=10
#
# We have published a short article in English about the change:
# https://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Iraq 1982 only - May 1 0:00 1:00 -
Rule Iraq 1982 1984 - Oct 1 0:00 0 -
Rule Iraq 1983 only - Mar 31 0:00 1:00 -
Rule Iraq 1984 1985 - Apr 1 0:00 1:00 -
Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 -
Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 -
# IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the ':01' is a typo.
# Shanks & Pottenger say Iraq did not observe DST 1992/1997; ignore this.
#
Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 -
Rule Iraq 1991 2007 - Oct 1 3:00s 0 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Baghdad 2:57:40 - LMT 1890
2:57:36 - BMT 1918 # Baghdad Mean Time?
3:00 - %z 1982 May
3:00 Iraq %z
###############################################################################
# Israel
# For more info about the motivation for DST in Israel, see:
# Barak Y. Israel's Daylight Saving Time controversy. Israel Affairs.
# 2020-08-11. https://doi.org/10.1080/13537121.2020.1806564
# From Ephraim Silverberg (2001-01-11):
#
# I coined "IST/IDT" circa 1988. Until then there were three
# different abbreviations in use:
#
# JST Jerusalem Standard Time [Danny Braniss, Hebrew University]
# IZT Israel Zonal (sic) Time [Prof. Haim Papo, Technion]
# EEST Eastern Europe Standard Time [used by almost everyone else]
#
# Since timezones should be called by country and not capital cities,
# I ruled out JST. As Israel is in Asia Minor and not Eastern Europe,
# EEST was equally unacceptable. Since "zonal" was not compatible with
# any other timezone abbreviation, I felt that 'IST' was the way to go
# and, indeed, it has received almost universal acceptance in timezone
# settings in Israeli computers.
#
# In any case, I am happy to share timezone abbreviations with India,
# high on my favorite-country list (and not only because my wife's
# family is from India).
# From P Chan (2020-10-27), with corrections:
#
# 1940-1946 Supplement No. 2 to the Palestine Gazette
# # issue page Order No. dated start end note
# 1 1010 729 67 of 1940 1940-05-22 1940-05-31* 1940-09-30* revoked by #2
# 2 1013 758 73 of 1940 1940-05-31 1940-05-31 1940-09-30
# 3 1055 1574 196 of 1940 1940-11-06 1940-11-16 1940-12-31
# 4 1066 1811 208 of 1940 1940-12-17 1940-12-31 1941-12-31
# 5 1156 1967 116 of 1941 1941-12-16 1941-12-31 1942-12-31* amended by #6
# 6 1228 1608 86 of 1942 1942-10-14 1941-12-31 1942-10-31
# 7 1256 279 21 of 1943 1943-03-18 1943-03-31 1943-10-31
# 8 1323 249 19 of 1944 1944-03-13 1944-03-31 1944-10-31
# 9 1402 328 20 of 1945 1945-04-05 1945-04-15 1945-10-31
#10 1487 596 14 of 1946 1946-04-04 1946-04-15 1946-10-31
#
# 1948 Iton Rishmi (Official Gazette of the Provisional Government)
# # issue page dated start end
#11 2 7 1948-05-20 1948-05-22 1948-10-31*
# ^This moved timezone to +04, replaced by #12 from 1948-08-31 24:00 GMT.
#12 17 (Annex B) 84 1948-08-22 1948-08-31 1948-10-31
#
# 1949-2000 Kovetz HaTakanot (Collection of Regulations)
# # issue page dated start end note
#13 6 133 1949-03-23 1949-04-30 1949-10-31
#14 80 755 1950-03-17 1950-04-15 1950-09-14
#15 164 782 1951-03-22 1951-03-31 1951-09-29* amended by #16
#16 206 1940 1951-09-23 ---------- 1951-10-22* amended by #17
#17 212 78 1951-10-19 ---------- 1951-11-10
#18 254 652 1952-03-03 1952-04-19 1952-09-27* amended by #19
#19 300 11 1952-09-15 ---------- 1952-10-18
#20 348 817 1953-03-03 1953-04-11 1953-09-12
#21 420 385 1954-02-17 1954-06-12 1954-09-11
#22 497 548 1955-01-14 1955-06-11 1955-09-10
#23 591 608 1956-03-12 1956-06-02 1956-09-29
#24 680 957 1957-02-08 1957-04-27 1957-09-21
#25 3192 1418 1974-06-28 1974-07-06 1974-10-12
#26 3322 1389 1975-04-03 1975-04-19 1975-08-30
#27 4146 2089 1980-07-15 1980-08-02 1980-09-13
#28 4604 1081 1984-02-22 1984-05-05* 1984-08-25* revoked by #29
#29 4619 1312 1984-04-06 1984-05-05 1984-08-25
#30 4744 475 1984-12-23 1985-04-13 1985-09-14* amended by #31
#31 4851 1848 1985-08-18 ---------- 1985-08-31
#32 4932 899 1986-04-22 1986-05-17 1986-09-06
#33 5013 580 1987-02-15 1987-04-18* 1987-08-22* revoked by #34
#34 5021 744 1987-03-30 1987-04-14 1987-09-12
#35 5096 659 1988-02-14 1988-04-09 1988-09-03
#36 5167 514 1989-02-03 1989-04-29 1989-09-02
#37 5248 375 1990-01-23 1990-03-24 1990-08-25
#38 5335 612 1991-02-10 1991-03-09* 1991-08-31 amended by #39
# 1992-03-28 1992-09-05
#39 5339 709 1991-03-04 1991-03-23 ----------
#40 5506 503 1993-02-18 1993-04-02 1993-09-05
# 1994-04-01 1994-08-28
# 1995-03-31 1995-09-03
#41 5731 438 1996-01-01 1996-03-14 1996-09-15
# 1997-03-13* 1997-09-18* overridden by 1997 Temp Prov
# 1998-03-19* 1998-09-17* revoked by #42
#42 5853 1243 1997-09-18 1998-03-19 1998-09-05
#43 5937 77 1998-10-18 1999-04-02 1999-09-03
# 2000-04-14* 2000-09-15* revoked by #44
# 2001-04-13* 2001-09-14* revoked by #44
#44 6024 39 2000-03-14 2000-04-14 2000-10-22* overridden by 2000 Temp Prov
# 2001-04-06* 2001-10-10* overridden by 2000 Temp Prov
# 2002-03-29* 2002-10-29* overridden by 2000 Temp Prov
#
# These are laws enacted by the Knesset since the Minister could only alter the
# transition dates at least six months in advanced under the 1992 Law.
# dated start end
# 1997 Temporary Provisions 1997-03-06 1997-03-20 1997-09-13
# 2000 Temporary Provisions 2000-07-28 ---------- 2000-10-06
# 2001-04-09 2001-09-24
# 2002-03-29 2002-10-07
# 2003-03-28 2003-10-03
# 2004-04-07 2004-09-22
# Note:
# Transition times in 1940-1957 (#1-#24) were midnight GMT,
# in 1974-1998 (#25-#42 and the 1997 Temporary Provisions) were midnight,
# in 1999-April 2000 (#43,#44) were 02:00,
# in the 2000 Temporary Provisions were 01:00.
#
# -----------------------------------------------------------------------------
# Links:
# 1 https://findit.library.yale.edu/images_layout/view?parentoid=15537490&increment=687
# 2 https://findit.library.yale.edu/images_layout/view?parentoid=15537490&increment=716
# 3 https://findit.library.yale.edu/images_layout/view?parentoid=15537491&increment=721
# 4 https://findit.library.yale.edu/images_layout/view?parentoid=15537491&increment=958
# 5 https://findit.library.yale.edu/images_layout/view?parentoid=15537502&increment=558
# 6 https://findit.library.yale.edu/images_layout/view?parentoid=15537511&increment=105
# 7 https://findit.library.yale.edu/images_layout/view?parentoid=15537516&increment=278
# 8 https://findit.library.yale.edu/images_layout/view?parentoid=15537522&increment=248
# 9 https://findit.library.yale.edu/images_layout/view?parentoid=15537530&increment=329
#10 https://findit.library.yale.edu/images_layout/view?parentoid=15537537&increment=601
#11 https://www.nevo.co.il/law_word/law12/er-002.pdf#page=3
#12 https://www.nevo.co.il/law_word/law12/er-017-t2.pdf#page=4
#13 https://www.nevo.co.il/law_word/law06/tak-0006.pdf#page=3
#14 https://www.nevo.co.il/law_word/law06/tak-0080.pdf#page=7
#15 https://www.nevo.co.il/law_word/law06/tak-0164.pdf#page=10
#16 https://www.nevo.co.il/law_word/law06/tak-0206.pdf#page=4
#17 https://www.nevo.co.il/law_word/law06/tak-0212.pdf#page=2
#18 https://www.nevo.co.il/law_word/law06/tak-0254.pdf#page=4
#19 https://www.nevo.co.il/law_word/law06/tak-0300.pdf#page=5
#20 https://www.nevo.co.il/law_word/law06/tak-0348.pdf#page=3
#21 https://www.nevo.co.il/law_word/law06/tak-0420.pdf#page=5
#22 https://www.nevo.co.il/law_word/law06/tak-0497.pdf#page=10
#23 https://www.nevo.co.il/law_word/law06/tak-0591.pdf#page=6
#24 https://www.nevo.co.il/law_word/law06/tak-0680.pdf#page=3
#25 https://www.nevo.co.il/law_word/law06/tak-3192.pdf#page=2
#26 https://www.nevo.co.il/law_word/law06/tak-3322.pdf#page=5
#27 https://www.nevo.co.il/law_word/law06/tak-4146.pdf#page=2
#28 https://www.nevo.co.il/law_word/law06/tak-4604.pdf#page=7
#29 https://www.nevo.co.il/law_word/law06/tak-4619.pdf#page=2
#30 https://www.nevo.co.il/law_word/law06/tak-4744.pdf#page=11
#31 https://www.nevo.co.il/law_word/law06/tak-4851.pdf#page=2
#32 https://www.nevo.co.il/law_word/law06/tak-4932.pdf#page=19
#33 https://www.nevo.co.il/law_word/law06/tak-5013.pdf#page=8
#34 https://www.nevo.co.il/law_word/law06/tak-5021.pdf#page=8
#35 https://www.nevo.co.il/law_word/law06/tak-5096.pdf#page=3
#36 https://www.nevo.co.il/law_word/law06/tak-5167.pdf#page=2
#37 https://www.nevo.co.il/law_word/law06/tak-5248.pdf#page=7
#38 https://www.nevo.co.il/law_word/law06/tak-5335.pdf#page=6
#39 https://www.nevo.co.il/law_word/law06/tak-5339.pdf#page=7
#40 https://www.nevo.co.il/law_word/law06/tak-5506.pdf#page=19
#41 https://www.nevo.co.il/law_word/law06/tak-5731.pdf#page=2
#42 https://www.nevo.co.il/law_word/law06/tak-5853.pdf#page=3
#43 https://www.nevo.co.il/law_word/law06/tak-5937.pdf#page=9
#44 https://www.nevo.co.il/law_word/law06/tak-6024.pdf#page=4
#
# Time Determination (Temporary Provisions) Law, 1997
# https://www.nevo.co.il/law_html/law19/p201_003.htm
#
# Time Determination (Temporary Provisions) Law, 2000
# https://www.nevo.co.il/law_html/law19/p201_004.htm
#
# Time Determination Law, 1992 and amendments
# https://www.nevo.co.il/law_html/law01/p201_002.htm
# https://main.knesset.gov.il/Activity/Legislation/Laws/Pages/LawPrimary.aspx?lawitemid=2001174
# From Paul Eggert (2020-10-27):
# Several of the midnight transitions mentioned above are ambiguous;
# are they 00:00, 00:00s, 24:00, or 24:00s? When resolving these ambiguities,
# try to minimize changes from previous tzdb versions, for lack of better info.
# Commentary from previous versions is included below, to help explain this.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Zion 1940 only - May 31 24:00u 1:00 D
Rule Zion 1940 only - Sep 30 24:00u 0 S
Rule Zion 1940 only - Nov 16 24:00u 1:00 D
Rule Zion 1942 1946 - Oct 31 24:00u 0 S
Rule Zion 1943 1944 - Mar 31 24:00u 1:00 D
Rule Zion 1945 1946 - Apr 15 24:00u 1:00 D
Rule Zion 1948 only - May 22 24:00u 2:00 DD
Rule Zion 1948 only - Aug 31 24:00u 1:00 D
Rule Zion 1948 1949 - Oct 31 24:00u 0 S
Rule Zion 1949 only - Apr 30 24:00u 1:00 D
Rule Zion 1950 only - Apr 15 24:00u 1:00 D
Rule Zion 1950 only - Sep 14 24:00u 0 S
Rule Zion 1951 only - Mar 31 24:00u 1:00 D
Rule Zion 1951 only - Nov 10 24:00u 0 S
Rule Zion 1952 only - Apr 19 24:00u 1:00 D
Rule Zion 1952 only - Oct 18 24:00u 0 S
Rule Zion 1953 only - Apr 11 24:00u 1:00 D
Rule Zion 1953 only - Sep 12 24:00u 0 S
Rule Zion 1954 only - Jun 12 24:00u 1:00 D
Rule Zion 1954 only - Sep 11 24:00u 0 S
Rule Zion 1955 only - Jun 11 24:00u 1:00 D
Rule Zion 1955 only - Sep 10 24:00u 0 S
Rule Zion 1956 only - Jun 2 24:00u 1:00 D
Rule Zion 1956 only - Sep 29 24:00u 0 S
Rule Zion 1957 only - Apr 27 24:00u 1:00 D
Rule Zion 1957 only - Sep 21 24:00u 0 S
Rule Zion 1974 only - Jul 6 24:00 1:00 D
Rule Zion 1974 only - Oct 12 24:00 0 S
Rule Zion 1975 only - Apr 19 24:00 1:00 D
Rule Zion 1975 only - Aug 30 24:00 0 S
# From Alois Treindl (2019-03-06):
# http://www.moin.gov.il/Documents/שעון%20קיץ/clock-50-years-7-2014.pdf
# From Isaac Starkman (2019-03-06):
# Summer time was in that period in 1980 and 1984, see
# https://www.ynet.co.il/articles/0,7340,L-3951073,00.html
# You can of course read it in translation.
# I checked the local newspapers for that years.
# It started on midnight and end at 01.00 am.
# From Paul Eggert (2019-03-06):
# Also see this thread about the moin.gov.il URL:
# https://mm.icann.org/pipermail/tz/2018-November/027194.html
Rule Zion 1980 only - Aug 2 24:00s 1:00 D
Rule Zion 1980 only - Sep 13 24:00s 0 S
Rule Zion 1984 only - May 5 24:00s 1:00 D
Rule Zion 1984 only - Aug 25 24:00s 0 S
Rule Zion 1985 only - Apr 13 24:00 1:00 D
Rule Zion 1985 only - Aug 31 24:00 0 S
Rule Zion 1986 only - May 17 24:00 1:00 D
Rule Zion 1986 only - Sep 6 24:00 0 S
Rule Zion 1987 only - Apr 14 24:00 1:00 D
Rule Zion 1987 only - Sep 12 24:00 0 S
# From Avigdor Finkelstein (2014-03-05):
# I check the Parliament (Knesset) records and there it's stated that the
# [1988] transition should take place on Saturday night, when the Sabbath
# ends and changes to Sunday.
Rule Zion 1988 only - Apr 9 24:00 1:00 D
Rule Zion 1988 only - Sep 3 24:00 0 S
# From Ephraim Silverberg
# (1997-03-04, 1998-03-16, 1998-12-28, 2000-01-17, 2000-07-25, 2004-12-22,
# and 2005-02-17):
# According to the Office of the Secretary General of the Ministry of
# Interior, there is NO set rule for Daylight-Savings/Standard time changes.
# One thing is entrenched in law, however: that there must be at least 150
# days of daylight savings time annually. From 1993-1998, the change to
# daylight savings time was on a Friday morning from midnight IST to
# 1 a.m IDT; up until 1998, the change back to standard time was on a
# Saturday night from midnight daylight savings time to 11 p.m. standard
# time. 1996 is an exception to this rule where the change back to standard
# time took place on Sunday night instead of Saturday night to avoid
# conflicts with the Jewish New Year. In 1999, the change to
# daylight savings time was still on a Friday morning but from
# 2 a.m. IST to 3 a.m. IDT; furthermore, the change back to standard time
# was also on a Friday morning from 2 a.m. IDT to 1 a.m. IST for
# 1999 only. In the year 2000, the change to daylight savings time was
# similar to 1999, but although the change back will be on a Friday, it
# will take place from 1 a.m. IDT to midnight IST. Starting in 2001, all
# changes to/from will take place at 1 a.m. old time, but now there is no
# rule as to what day of the week it will take place in as the start date
# (except in 2003) is the night after the Passover Seder (i.e. the eve
# of the 16th of Nisan in the lunar Hebrew calendar) and the end date
# (except in 2002) is three nights before Yom Kippur [Day of Atonement]
# (the eve of the 7th of Tishrei in the lunar Hebrew calendar).
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Zion 1989 only - Apr 29 24:00 1:00 D
Rule Zion 1989 only - Sep 2 24:00 0 S
Rule Zion 1990 only - Mar 24 24:00 1:00 D
Rule Zion 1990 only - Aug 25 24:00 0 S
Rule Zion 1991 only - Mar 23 24:00 1:00 D
Rule Zion 1991 only - Aug 31 24:00 0 S
Rule Zion 1992 only - Mar 28 24:00 1:00 D
Rule Zion 1992 only - Sep 5 24:00 0 S
Rule Zion 1993 only - Apr 2 0:00 1:00 D
Rule Zion 1993 only - Sep 5 0:00 0 S
# The dates for 1994-1995 were obtained from Office of the Spokeswoman for the
# Ministry of Interior, Jerusalem, Israel. The spokeswoman can be reached by
# calling the office directly at 972-2-6701447 or 972-2-6701448.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Zion 1994 only - Apr 1 0:00 1:00 D
Rule Zion 1994 only - Aug 28 0:00 0 S
Rule Zion 1995 only - Mar 31 0:00 1:00 D
Rule Zion 1995 only - Sep 3 0:00 0 S
# The dates for 1996 were determined by the Minister of Interior of the
# time, Haim Ramon. The official announcement regarding 1996-1998
# (with the dates for 1997-1998 no longer being relevant) can be viewed at:
#
# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/1996-1998.ramon.ps.gz
#
# The dates for 1997-1998 were altered by his successor, Rabbi Eli Suissa.
#
# The official announcements for the years 1997-1999 can be viewed at:
#
# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/YYYY.ps.gz
#
# where YYYY is the relevant year.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Zion 1996 only - Mar 14 24:00 1:00 D
Rule Zion 1996 only - Sep 15 24:00 0 S
Rule Zion 1997 only - Mar 20 24:00 1:00 D
Rule Zion 1997 only - Sep 13 24:00 0 S
Rule Zion 1998 only - Mar 20 0:00 1:00 D
Rule Zion 1998 only - Sep 6 0:00 0 S
Rule Zion 1999 only - Apr 2 2:00 1:00 D
Rule Zion 1999 only - Sep 3 2:00 0 S
# The Knesset Interior Committee has changed the dates for 2000 for
# the third time in just over a year and have set new dates for the
# years 2001-2004 as well.
#
# The official announcement for the start date of 2000 can be viewed at:
#
# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-start.ps.gz
#
# The official announcement for the end date of 2000 and the dates
# for the years 2001-2004 can be viewed at:
#
# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-2004.ps.gz
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Zion 2000 only - Apr 14 2:00 1:00 D
Rule Zion 2000 only - Oct 6 1:00 0 S
Rule Zion 2001 only - Apr 9 1:00 1:00 D
Rule Zion 2001 only - Sep 24 1:00 0 S
Rule Zion 2002 only - Mar 29 1:00 1:00 D
Rule Zion 2002 only - Oct 7 1:00 0 S
Rule Zion 2003 only - Mar 28 1:00 1:00 D
Rule Zion 2003 only - Oct 3 1:00 0 S
Rule Zion 2004 only - Apr 7 1:00 1:00 D
Rule Zion 2004 only - Sep 22 1:00 0 S
# The proposed law agreed upon by the Knesset Interior Committee on
# 2005-02-14 is that, for 2005 and beyond, DST starts at 02:00 the
# last Friday before April 2nd (i.e. the last Friday in March or April
# 1st itself if it falls on a Friday) and ends at 02:00 on the Saturday
# night _before_ the fast of Yom Kippur.
#
# Those who can read Hebrew can view the announcement at:
#
# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2005+beyond.ps
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Zion 2005 2012 - Apr Fri<=1 2:00 1:00 D
Rule Zion 2005 only - Oct 9 2:00 0 S
Rule Zion 2006 only - Oct 1 2:00 0 S
Rule Zion 2007 only - Sep 16 2:00 0 S
Rule Zion 2008 only - Oct 5 2:00 0 S
Rule Zion 2009 only - Sep 27 2:00 0 S
Rule Zion 2010 only - Sep 12 2:00 0 S
Rule Zion 2011 only - Oct 2 2:00 0 S
Rule Zion 2012 only - Sep 23 2:00 0 S
# From Ephraim Silverberg (2020-10-26):
# The current time law (2013) from the State of Israel can be viewed
# (in Hebrew) at:
# ftp://ftp.cs.huji.ac.il/pub/tz/israel/announcements/2013+law.pdf
# It translates to:
# Every year, in the period from the Friday before the last Sunday in
# the month of March at 02:00 a.m. until the last Sunday of the month
# of October at 02:00 a.m., Israel Time will be advanced an additional
# hour such that it will be UTC+3.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Zion 2013 max - Mar Fri>=23 2:00 1:00 D
Rule Zion 2013 max - Oct lastSun 2:00 0 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Jerusalem 2:20:54 - LMT 1880
2:20:40 - JMT 1918 # Jerusalem Mean Time?
2:00 Zion I%sT
###############################################################################
# Japan
# '9:00' and 'JST' is from Guy Harris.
# From Paul Eggert (2020-01-19):
# Starting in the 7th century, Japan generally followed an ancient Chinese
# timekeeping system that divided night and day into six hours each,
# with hour length depending on season. In 1873 the government
# started requiring the use of a Western style 24-hour clock. See:
# Yulia Frumer, "Making Time: Astronomical Time Measurement in Tokugawa Japan"
# . As the tzdb code and
# data support only 24-hour clocks, its tables model timestamps before
# 1873 using Western-style local mean time.
# From Hideyuki Suzuki (1998-11-09):
# 'Tokyo' usually stands for the former location of Tokyo Astronomical
# Observatory: 139° 44' 40.90" E (9h 18m 58.727s), 35° 39' 16.0" N.
# This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996'
# edited by National Astronomical Observatory of Japan....
# JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST).
# The law is enacted on 1886-07-07.
# From Hideyuki Suzuki (1998-11-16):
# The ordinance No. 51 (1886) established "standard time" in Japan,
# which stands for the time on 135° E.
# In the ordinance No. 167 (1895), "standard time" was renamed to "central
# standard time". And the same ordinance also established "western standard
# time", which stands for the time on 120° E.... But "western standard
# time" was abolished in the ordinance No. 529 (1937). In the ordinance No.
# 167, there is no mention regarding for what place western standard time is
# standard....
#
# I wrote "ordinance" above, but I don't know how to translate.
# In Japanese it's "chokurei", which means ordinance from emperor.
# From Yu-Cheng Chuang (2013-07-12):
# ...the Meiji Emperor announced Ordinance No. 167 of Meiji Year 28 "The clause
# about standard time" ... The adoption began from Jan 1, 1896.
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
#
# ...the Showa Emperor announced Ordinance No. 529 of Showa Year 12 ... which
# means the whole Japan territory, including later occupations, adopt Japan
# Central Time (UT+9). The adoption began on Oct 1, 1937.
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
# From Paul Eggert (1995-03-06):
# Today's _Asahi Evening News_ (page 4) reports that Japan had
# daylight saving between 1948 and 1951, but "the system was discontinued
# because the public believed it would lead to longer working hours."
# From Mayumi Negishi in the 2005-08-10 Japan Times:
# http://www.japantimes.co.jp/cgi-bin/getarticle.pl5?nn20050810f2.htm
# Occupation authorities imposed daylight-saving time on Japan on
# [1948-05-01].... But lack of prior debate and the execution of
# daylight-saving time just three days after the bill was passed generated
# deep hatred of the concept.... The Diet unceremoniously passed a bill to
# dump the unpopular system in October 1951, less than a month after the San
# Francisco Peace Treaty was signed. (A government poll in 1951 showed 53%
# of the Japanese wanted to scrap daylight-saving time, as opposed to 30% who
# wanted to keep it.)
# From Takayuki Nikai (2018-01-19):
# The source of information is Japanese law.
# http://www.shugiin.go.jp/internet/itdb_housei.nsf/html/houritsu/00219480428029.htm
# http://www.shugiin.go.jp/internet/itdb_housei.nsf/html/houritsu/00719500331039.htm
# ... In summary, it is written as follows. From 24:00 on the first Saturday
# in May, until 0:00 on the day after the second Saturday in September.
# From Phake Nick (2018-09-27):
# [T]he webpage authored by National Astronomical Observatory of Japan
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EF.html
# ... mentioned that using Showa 23 (year 1948) as example, 13pm of September
# 11 in summer time will equal to 0am of September 12 in standard time.
# It cited a document issued by the Liaison Office which briefly existed
# during the postwar period of Japan, where the detail on implementation
# of the summer time is described in the document.
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EFB2C6BBFEB9EFA4CEBCC2BBDCA4CBA4C4A4A4A4C6.pdf
# The text in the document do instruct a fall back to occur at
# September 11, 13pm in summer time, while ordinary citizens can
# change the clock before they sleep.
#
# From Paul Eggert (2018-09-27):
# This instruction is equivalent to "Sat>=8 25:00", so use that. zic treats
# it like "Sun>=9 01:00", which is not quite the same but is the best we can
# do in any POSIX or C platform. The "25:00" assumes zic from 2007 or later,
# which should be safe now.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Japan 1948 only - May Sat>=1 24:00 1:00 D
Rule Japan 1948 1951 - Sep Sat>=8 25:00 0 S
Rule Japan 1949 only - Apr Sat>=1 24:00 1:00 D
Rule Japan 1950 1951 - May Sat>=1 24:00 1:00 D
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u
9:00 Japan J%sT
# Since 1938, all Japanese possessions have been like Asia/Tokyo,
# except that Truk (Chuuk), Ponape (Pohnpei), and Jaluit (Kosrae) did not
# switch from +10 to +09 until 1941-04-01; see the 'australasia' file.
# Jordan
#
# From
# Jordan Week (1999-07-01) via Steffen Thorsen (1999-09-09):
# Clocks in Jordan were forwarded one hour on Wednesday at midnight,
# in accordance with the government's decision to implement summer time
# all year round.
#
# From
# Jordan Week (1999-09-30) via Steffen Thorsen (1999-11-09):
# Winter time starts today Thursday, 30 September. Clocks will be turned back
# by one hour. This is the latest government decision and it's final!
# The decision was taken because of the increase in working hours in
# government's departments from six to seven hours.
#
# From Paul Eggert (2005-11-22):
# Starting 2003 transitions are from Steffen Thorsen's web site timeanddate.com.
#
# From Steffen Thorsen (2005-11-23):
# For Jordan I have received multiple independent user reports every year
# about DST end dates, as the end-rule is different every year.
#
# From Steffen Thorsen (2006-10-01), after a heads-up from Hilal Malawi:
# http://www.petranews.gov.jo/nepras/2006/Sep/05/4000.htm
# "Jordan will switch to winter time on Friday, October 27".
#
# From Steffen Thorsen (2009-04-02):
# This single one might be good enough, (2009-03-24, Arabic):
# http://petra.gov.jo/Artical.aspx?Lng=2&Section=8&Artical=95279
#
# Google's translation:
#
# > The Council of Ministers decided in 2002 to adopt the principle of timely
# > submission of the summer at 60 minutes as of midnight on the last Thursday
# > of the month of March of each year.
#
# So - this means the midnight between Thursday and Friday since 2002.
# From Arthur David Olson (2009-04-06):
# We still have Jordan switching to DST on Thursdays in 2000 and 2001.
# From Steffen Thorsen (2012-10-25):
# Yesterday the government in Jordan announced that they will not
# switch back to standard time this winter, so the will stay on DST
# until about the same time next year (at least).
# http://www.petra.gov.jo/Public_News/Nws_NewsDetails.aspx?NewsID=88950
# From Steffen Thorsen (2013-12-11):
# Jordan Times and other sources say that Jordan is going back to
# UTC+2 on 2013-12-19 at midnight:
# http://jordantimes.com/govt-decides-to-switch-back-to-wintertime
# Official, in Arabic:
# http://www.petra.gov.jo/public_news/Nws_NewsDetails.aspx?Menu_ID=&Site_Id=2&lang=1&NewsID=133230&CatID=14
# ... Our background/permalink about it
# https://www.timeanddate.com/news/time/jordan-reverses-dst-decision.html
# ...
# http://www.petra.gov.jo/Public_News/Nws_NewsDetails.aspx?lang=2&site_id=1&NewsID=133313&Type=P
# ... says midnight for the coming one and 1:00 for the ones in the future
# (and they will use DST again next year, using the normal schedule).
# From Paul Eggert (2013-12-11):
# As Steffen suggested, consider the past 21-month experiment to be DST.
# From Steffen Thorsen (2021-09-24):
# The Jordanian Government announced yesterday that they will start DST
# in February instead of March:
# https://petra.gov.jo/Include/InnerPage.jsp?ID=37683&lang=en&name=en_news (English)
# https://petra.gov.jo/Include/InnerPage.jsp?ID=189969&lang=ar&name=news (Arabic)
# From the Arabic version, it seems to say it would be at midnight
# (assume 24:00) on the last Thursday in February, starting from 2022.
# From Issam Al-Zuwairi (2022-10-05):
# The Council of Ministers in Jordan decided Wednesday 5th October 2022,
# that daylight saving time (DST) will be throughout the year....
#
# From Brian Inglis (2022-10-06):
# https://petra.gov.jo/Include/InnerPage.jsp?ID=45567&lang=en&name=en_news
#
# From Paul Eggert (2022-10-05):
# Like Syria, model this as a transition from EEST +03 (DST) to plain +03
# (non-DST) at the point where DST would otherwise have ended.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Jordan 1973 only - Jun 6 0:00 1:00 S
Rule Jordan 1973 1975 - Oct 1 0:00 0 -
Rule Jordan 1974 1977 - May 1 0:00 1:00 S
Rule Jordan 1976 only - Nov 1 0:00 0 -
Rule Jordan 1977 only - Oct 1 0:00 0 -
Rule Jordan 1978 only - Apr 30 0:00 1:00 S
Rule Jordan 1978 only - Sep 30 0:00 0 -
Rule Jordan 1985 only - Apr 1 0:00 1:00 S
Rule Jordan 1985 only - Oct 1 0:00 0 -
Rule Jordan 1986 1988 - Apr Fri>=1 0:00 1:00 S
Rule Jordan 1986 1990 - Oct Fri>=1 0:00 0 -
Rule Jordan 1989 only - May 8 0:00 1:00 S
Rule Jordan 1990 only - Apr 27 0:00 1:00 S
Rule Jordan 1991 only - Apr 17 0:00 1:00 S
Rule Jordan 1991 only - Sep 27 0:00 0 -
Rule Jordan 1992 only - Apr 10 0:00 1:00 S
Rule Jordan 1992 1993 - Oct Fri>=1 0:00 0 -
Rule Jordan 1993 1998 - Apr Fri>=1 0:00 1:00 S
Rule Jordan 1994 only - Sep Fri>=15 0:00 0 -
Rule Jordan 1995 1998 - Sep Fri>=15 0:00s 0 -
Rule Jordan 1999 only - Jul 1 0:00s 1:00 S
Rule Jordan 1999 2002 - Sep lastFri 0:00s 0 -
Rule Jordan 2000 2001 - Mar lastThu 0:00s 1:00 S
Rule Jordan 2002 2012 - Mar lastThu 24:00 1:00 S
Rule Jordan 2003 only - Oct 24 0:00s 0 -
Rule Jordan 2004 only - Oct 15 0:00s 0 -
Rule Jordan 2005 only - Sep lastFri 0:00s 0 -
Rule Jordan 2006 2011 - Oct lastFri 0:00s 0 -
Rule Jordan 2013 only - Dec 20 0:00 0 -
Rule Jordan 2014 2021 - Mar lastThu 24:00 1:00 S
Rule Jordan 2014 2022 - Oct lastFri 0:00s 0 -
Rule Jordan 2022 only - Feb lastThu 24:00 1:00 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Amman 2:23:44 - LMT 1931
2:00 Jordan EE%sT 2022 Oct 28 0:00s
3:00 - %z
# Kazakhstan
# From Kazakhstan Embassy's News Bulletin No. 11
# (2005-03-21):
# The Government of Kazakhstan passed a resolution March 15 abolishing
# daylight saving time citing lack of economic benefits and health
# complications coupled with a decrease in productivity.
#
# From Branislav Kojic (in Astana) via Gwillim Law (2005-06-28):
# ... what happened was that the former Kazakhstan Eastern time zone
# was "blended" with the Central zone. Therefore, Kazakhstan now has
# two time zones, and difference between them is one hour. The zone
# closer to UTC is the former Western zone (probably still called the
# same), encompassing four provinces in the west: Aqtöbe, Atyraū,
# Mangghystaū, and West Kazakhstan. The other zone encompasses
# everything else.... I guess that would make Kazakhstan time zones
# de jure UTC+5 and UTC+6 respectively.
# From Stepan Golosunov (2016-03-27):
# Review of the linked documents from http://adilet.zan.kz/
# produced the following data for post-1991 Kazakhstan:
#
# 0. Act of the Cabinet of Ministers of the USSR
# from 1991-02-04 No. 20
# http://pravo.gov.ru/proxy/ips/?docbody=&nd=102010545
# removed the extra hour ("decree time") on the territory of the USSR
# starting with the last Sunday of March 1991.
# It also allowed (but not mandated) Kazakh SSR, Kirghiz SSR, Tajik SSR,
# Turkmen SSR and Uzbek SSR to not have "summer" time.
#
# The 1992-01-13 act also refers to the act of the Cabinet of Ministers
# of the Kazakh SSR from 1991-03-20 No. 170 "About the act of the Cabinet
# of Ministers of the USSR from 1991-02-04 No. 20" but I didn't found its
# text.
#
# According to Izvestia newspaper No. 68 (23334) from 1991-03-20
# -- page 6; available at http://libinfo.org/newsr/newsr2574.djvu via
# http://libinfo.org/index.php?id=58564 -- on 1991-03-31 at 2:00 during
# transition to "summer" time:
# Republic of Georgia, Latvian SSR, Lithuanian SSR, SSR Moldova,
# Estonian SSR; Komi ASSR; Kaliningrad oblast; Nenets autonomous okrug
# were to move clocks 1 hour forward.
# Kazakh SSR (excluding Uralsk oblast); Republic of Kyrgyzstan, Tajik
# SSR; Andijan, Jizzakh, Namangan, Sirdarya, Tashkent, Fergana oblasts
# of the Uzbek SSR were to move clocks 1 hour backwards.
# Other territories were to not move clocks.
# When the "summer" time would end on 1991-09-29, clocks were to be
# moved 1 hour backwards on the territory of the USSR excluding
# Kazakhstan, Kirghizia, Uzbekistan, Turkmenia, Tajikistan.
#
# Apparently there were last minute changes. Apparently Kazakh act No. 170
# was one of such changes.
#
# https://ru.wikipedia.org/wiki/Декретное_время
# claims that Sovetskaya Rossiya newspaper on 1991-03-29 published that
# Nenets autonomous okrug, Komi and Kazakhstan (excluding Uralsk oblast)
# were to not move clocks and Uralsk oblast was to move clocks
# forward; on 1991-09-29 Kazakhstan was to move clocks backwards.
# (Probably there were changes even after that publication. There is an
# article claiming that Kaliningrad oblast decided on 1991-03-29 to not
# move clocks.)
#
# This implies that on 1991-03-31 Asia/Oral remained on +04/+05 while
# the rest of Kazakhstan switched from +06/+07 to +05/06 or from +05/06
# to +04/+05. It's unclear how Qyzylorda oblast moved into the fifth
# time belt. (By switching from +04/+05 to +05/+06 on 1991-09-29?) ...
#
# 1. Act of the Cabinet of Ministers of the Republic of Kazakhstan
# from 1992-01-13 No. 28
# http://adilet.zan.kz/rus/docs/P920000028_
# (text includes modification from the 1996 act)
# introduced new rules for calculation of time, mirroring Russian
# 1992-01-08 act. It specified that time would be calculated
# according to time belts plus extra hour ("decree time"), moved clocks
# on the whole territory of Kazakhstan 1 hour forward on 1992-01-19 at
# 2:00, specified DST rules. It acknowledged that Kazakhstan was
# located in the fourth and the fifth time belts and specified the
# border between them to be located east of Qostanay and Aktyubinsk
# oblasts (notably including Turgai and Qyzylorda oblasts into the fifth
# time belt).
#
# This means switch on 1992-01-19 at 2:00 from +04/+05 to +05/+06 for
# Asia/Aqtau, Asia/Aqtobe, Asia/Oral, Atyraū and Qostanay oblasts; from
# +05/+06 to +06/+07 for Asia/Almaty and Asia/Qyzylorda (and Arkalyk)....
#
# 2. Act of the Cabinet of Ministers of the Republic of Kazakhstan
# from 1992-03-27 No. 284
# http://adilet.zan.kz/rus/docs/P920000284_
# cancels extra hour ("decree time") for Uralsk and Qyzylorda oblasts
# since the last Sunday of March 1992, while keeping them in the fourth
# and the fifth time belts respectively.
#
# 3. Order of the Prime Minister of the Republic of Kazakhstan
# from 1994-09-23 No. 384
# http://adilet.zan.kz/rus/docs/R940000384_
# cancels the extra hour ("decree time") on the territory of Mangghystaū
# oblast since the last Sunday of September 1994 (saying that time on
# the territory would correspond to the third time belt as a
# result)....
#
# 4. Act of the Government of the Republic of Kazakhstan
# from 1996-05-08 No. 575
# http://adilet.zan.kz/rus/docs/P960000575_
# amends the 1992-01-13 act to end summer time in October instead
# of September, mirroring identical Russian change from 1996-04-23 act.
#
# 5. Act of the Government of the Republic of Kazakhstan
# from 1999-03-26 No. 305
# http://adilet.zan.kz/rus/docs/P990000305_
# cancels the extra hour ("decree time") for Atyraū oblast since the
# last Sunday of March 1999 while retaining the oblast in the fourth
# time belt.
#
# This means change from +05/+06 to +04/+05....
#
# 6. Act of the Government of the Republic of Kazakhstan
# from 2000-11-23 No. 1749
# http://adilet.zan.kz/rus/archive/docs/P000001749_/23.11.2000
# replaces the previous five documents.
#
# The only changes I noticed are in definition of the border between the
# fourth and the fifth time belts. They account for changes in spelling
# and administrative division (splitting of Turgai oblast in 1997
# probably changed time in territories incorporated into Qostanay oblast
# (including Arkalyk) from +06/+07 to +05/+06) and move Qyzylorda oblast
# from being in the fifth time belt and not using decree time into the
# fourth time belt (no change in practice).
#
# 7. Act of the Government of the Republic of Kazakhstan
# from 2003-12-29 No. 1342
# http://adilet.zan.kz/rus/docs/P030001342_
# modified the 2000-11-23 act. No relevant changes, apparently.
#
# 8. Act of the Government of the Republic of Kazakhstan
# from 2004-07-20 No. 775
# http://adilet.zan.kz/rus/archive/docs/P040000775_/20.07.2004
# modified the 2000-11-23 act to move Qostanay and Qyzylorda oblasts into
# the fifth time belt and add Aktobe oblast to the list of regions not
# using extra hour ("decree time"), leaving Kazakhstan with only 2 time
# zones (+04/+05 and +06/+07). The changes were to be implemented
# during DST transitions in 2004 and 2005 but the acts got radically
# amended before implementation happened.
#
# 9. Act of the Government of the Republic of Kazakhstan
# from 2004-09-15 No. 1059
# http://adilet.zan.kz/rus/docs/P040001059_
# modified the 2000-11-23 act to remove exceptions from the "decree time"
# (leaving Kazakhstan in +05/+06 and +06/+07 zones), amended the
# 2004-07-20 act to implement changes for Atyraū, West Kazakhstan,
# Qostanay, Qyzylorda and Mangghystaū oblasts by not moving clocks
# during the 2004 transition to "winter" time.
#
# This means transition from +04/+05 to +05/+06 for Atyraū oblast (no
# zone currently), Asia/Oral, Asia/Aqtau and transition from +05/+06 to
# +06/+07 for Qostanay oblast (Qostanay and Arkalyk, no zones currently)
# and Asia/Qyzylorda on 2004-10-31 at 3:00....
#
# 10. Act of the Government of the Republic of Kazakhstan
# from 2005-03-15 No. 231
# http://adilet.zan.kz/rus/docs/P050000231_
# removes DST provisions from the 2000-11-23 act, removes most of the
# (already implemented) provisions from the 2004-07-20 and 2004-09-15
# acts, comes into effect 10 days after official publication.
# The only practical effect seems to be the abolition of the summer
# time.
#
# Unamended version of the act of the Government of the Russian Federation
# No. 23 from 1992-01-08 [See 'europe' file for details].
# Kazakh 1992-01-13 act appears to provide the same rules and 1992-03-27
# act was to be enacted on the last Sunday of March 1992.
# From Stepan Golosunov (2016-11-08):
# Turgai reorganization should affect only southern part of Qostanay
# oblast. Which should probably be separated into Asia/Arkalyk zone.
# (There were also 1970, 1988 and 1990 Turgai oblast reorganizations
# according to wikipedia.)
#
# [For Qostanay] http://www.ng.kz/gazeta/195/hranit/
# suggests that clocks were to be moved 40 minutes backwards on
# 1920-01-01 to the fourth time belt. But I do not understand
# how that could happen....
#
# [For Atyrau and Oral] 1919 decree
# (http://www.worldtimezone.com/dst_news/dst_news_russia-1919-02-08.html
# and in Byalokoz) lists Ural river (plus 10 versts on its left bank) in
# the third time belt (before 1930 this means +03).
# From Alexander Konzurovski (2018-12-20):
# (Asia/Qyzylorda) is changing its time zone from UTC+6 to UTC+5
# effective December 21st, 2018....
# http://adilet.zan.kz/rus/docs/P1800000817 (russian language).
# From Zhanbolat Raimbekov (2024-01-19):
# Kazakhstan (all parts) switching to UTC+5 on March 1, 2024
# https://www.gov.kz/memleket/entities/mti/press/news/details/688998?lang=ru
# [in Russian]
# (2024-01-20): https://primeminister.kz/ru/decisions/19012024-20
#
# From Alexander Krivenyshev (2024-01-19):
# According to a different news and the official web site for the Ministry of
# Trade and Integration of the Republic of Kazakhstan:
# https://en.inform.kz/news/kazakhstan-to-switch-to-single-hour-zone-mar-1-54ad0b/
# Zone NAME STDOFF RULES FORMAT [UNTIL]
#
# Almaty (formerly Alma-Ata), representing most locations in Kazakhstan
# This includes Abai/Abay (ISO 3166-2 code KZ-10), Aqmola/Akmola (KZ-11),
# Almaty (KZ-19), Almaty city (KZ-75), Astana city (KZ-71),
# East Kazakhstan (KZ-63), Jambyl/Zhambyl (KZ-31), Jetisu/Zhetysu (KZ-33),
# Karaganda (KZ-35), North Kazakhstan (KZ-59), Pavlodar (KZ-55),
# Shymkent city (KZ-79), Turkistan (KZ-61), and Ulytau (KZ-62).
Zone Asia/Almaty 5:07:48 - LMT 1924 May 2 # or Alma-Ata
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00s
5:00 RussiaAsia %z 1992 Jan 19 2:00s
6:00 RussiaAsia %z 2004 Oct 31 2:00s
6:00 - %z 2024 Mar 1 0:00
5:00 - %z
# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-43)
Zone Asia/Qyzylorda 4:21:52 - LMT 1924 May 2
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1991 Sep 29 2:00s
5:00 RussiaAsia %z 1992 Jan 19 2:00s
6:00 RussiaAsia %z 1992 Mar 29 2:00s
5:00 RussiaAsia %z 2004 Oct 31 2:00s
6:00 - %z 2018 Dec 21 0:00
5:00 - %z
# Qostanay (aka Kostanay, Kustanay) (KZ-39)
# The 1991/2 rules are unclear partly because of the 1997 Turgai
# reorganization.
Zone Asia/Qostanay 4:14:28 - LMT 1924 May 2
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 2004 Oct 31 2:00s
6:00 - %z 2024 Mar 1 0:00
5:00 - %z
# Aqtöbe (aka Aktobe, formerly Aktyubinsk) (KZ-15)
Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
# Mangghystaū (KZ-47)
# Aqtau was not founded until 1963, but it represents an inhabited region,
# so include timestamps before 1963.
Zone Asia/Aqtau 3:21:04 - LMT 1924 May 2
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 1994 Sep 25 2:00s
4:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
# Atyraū (KZ-23) is like Mangghystaū except it switched from
# +04/+05 to +05/+06 in spring 1999, not fall 1994.
Zone Asia/Atyrau 3:27:44 - LMT 1924 May 2
3:00 - %z 1930 Jun 21
5:00 - %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 1999 Mar 28 2:00s
4:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
# West Kazakhstan (KZ-27)
# From Paul Eggert (2016-03-18):
# The 1989 transition is from USSR act No. 227 (1989-03-14).
Zone Asia/Oral 3:25:24 - LMT 1924 May 2 # or Ural'sk
3:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1989 Mar 26 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 1992 Mar 29 2:00s
4:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
# Kyrgyzstan (Kirgizstan)
# Transitions through 1991 are from Shanks & Pottenger.
# From Paul Eggert (2005-08-15):
# According to an article dated today in the Kyrgyzstan Development Gateway
# http://eng.gateway.kg/cgi-bin/page.pl?id=1&story_name=doc9979.shtml
# Kyrgyzstan is canceling the daylight saving time system. I take the article
# to mean that they will leave their clocks at 6 hours ahead of UTC.
# From Malik Abdugaliev (2005-09-21):
# Our government cancels daylight saving time 6th of August 2005.
# From 2005-08-12 our GMT-offset is +6, w/o any daylight saving.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 -
Rule Kyrgyz 1992 1996 - Sep lastSun 0:00 0 -
Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 -
Rule Kyrgyz 1997 2004 - Oct lastSun 2:30 0 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00s
5:00 RussiaAsia %z 1991 Aug 31 2:00
5:00 Kyrgyz %z 2005 Aug 12
6:00 - %z
###############################################################################
# Korea (North and South)
# From Annie I. Bang (2006-07-10):
# http://www.koreaherald.com/view.php?ud=200607100012
# Korea ran a daylight saving program from 1949-61 but stopped it
# during the 1950-53 Korean War. The system was temporarily enforced
# between 1987 and 1988 ...
# From Sanghyuk Jung (2014-10-29):
# https://mm.icann.org/pipermail/tz/2014-October/021830.html
# According to the Korean Wikipedia
# https://ko.wikipedia.org/wiki/한국_표준시
# [oldid=12896437 2014-09-04 08:03 UTC]
# DST in Republic of Korea was as follows.... And I checked old
# newspapers in Korean, all articles correspond with data in Wikipedia.
# For example, the article in 1948 (Korean Language) proved that DST
# started at June 1 in that year. For another example, the article in
# 1988 said that DST started at 2:00 AM in that year.
# From Phake Nick (2018-10-27):
# 1. According to official announcement from Korean government, the DST end
# date in South Korea should be
# 1955-09-08 without specifying time
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027977557
# 1956-09-29 without specifying time
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027978341
# 1957-09-21 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027979690#3
# 1958-09-20 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027981189
# 1959-09-19 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027982974#2
# 1960-09-17 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0028044104
# ...
# 2.... https://namu.wiki/w/대한민국%20표준시 ... [says]
# when Korea was using GMT+8:30 as standard time, the international
# aviation/marine/meteorological industry in the country refused to
# follow and continued to use GMT+9:00 for interoperability.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule ROK 1948 only - Jun 1 0:00 1:00 D
Rule ROK 1948 only - Sep 12 24:00 0 S
Rule ROK 1949 only - Apr 3 0:00 1:00 D
Rule ROK 1949 1951 - Sep Sat>=7 24:00 0 S
Rule ROK 1950 only - Apr 1 0:00 1:00 D
Rule ROK 1951 only - May 6 0:00 1:00 D
Rule ROK 1955 only - May 5 0:00 1:00 D
Rule ROK 1955 only - Sep 8 24:00 0 S
Rule ROK 1956 only - May 20 0:00 1:00 D
Rule ROK 1956 only - Sep 29 24:00 0 S
Rule ROK 1957 1960 - May Sun>=1 0:00 1:00 D
Rule ROK 1957 1960 - Sep Sat>=17 24:00 0 S
Rule ROK 1987 1988 - May Sun>=8 2:00 1:00 D
Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S
# From Paul Eggert (2016-08-23):
# The Korean Wikipedia entry gives the following sources for UT offsets:
#
# 1908: Official Journal Article No. 3994 (decree No. 5)
# 1912: Governor-General of Korea Official Gazette Issue No. 367
# (Announcement No. 338)
# 1954: Presidential Decree No. 876 (1954-03-17)
# 1961: Law No. 676 (1961-08-07)
#
# (Another source "1987: Law No. 3919 (1986-12-31)" was in the 2014-10-30
# edition of the Korean Wikipedia entry.)
#
# I guessed that time zone abbreviations through 1945 followed the same
# rules as discussed under Taiwan, with nominal switches from JST to KST
# when the respective cities were taken over by the Allies after WWII.
#
# For Pyongyang, guess no changes from World War II until 2015, as we
# have no information otherwise.
# From Steffen Thorsen (2015-08-07):
# According to many news sources, North Korea is going to change to
# the 8:30 time zone on August 15, one example:
# http://www.bbc.com/news/world-asia-33815049
#
# From Paul Eggert (2015-08-15):
# Bells rang out midnight (00:00) Friday as part of the celebrations. See:
# Talmadge E. North Korea celebrates new time zone, 'Pyongyang Time'
# http://news.yahoo.com/north-korea-celebrates-time-zone-pyongyang-time-164038128.html
# There is no common English-language abbreviation for this time zone.
# Use KST, as that's what we already use for 1954-1961 in ROK.
# From Kang Seonghoon (2018-04-29):
# North Korea will revert its time zone from UTC+8:30 (PYT; Pyongyang
# Time) back to UTC+9 (KST; Korea Standard Time).
#
# From Seo Sanghyeon (2018-04-30):
# Rodong Sinmun 2018-04-30 announced Pyongyang Time transition plan.
# https://www.nknews.org/kcna/wp-content/uploads/sites/5/2018/04/rodong-2018-04-30.pdf
# ... the transition date is 2018-05-05 ... Citation should be Decree
# No. 2232 of April 30, 2018, of the Presidium of the Supreme People's
# Assembly, as published in Rodong Sinmun.
# From Tim Parenti (2018-04-29):
# It appears to be the front page story at the top in the right-most column.
#
# From Paul Eggert (2018-05-04):
# The BBC reported that the transition was from 23:30 to 24:00 today.
# https://www.bbc.com/news/world-asia-44010705
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Seoul 8:27:52 - LMT 1908 Apr 1
8:30 - KST 1912 Jan 1
9:00 - JST 1945 Sep 8
9:00 ROK K%sT 1954 Mar 21
8:30 ROK K%sT 1961 Aug 10
9:00 ROK K%sT
Zone Asia/Pyongyang 8:23:00 - LMT 1908 Apr 1
8:30 - KST 1912 Jan 1
9:00 - JST 1945 Aug 24
9:00 - KST 2015 Aug 15 00:00
8:30 - KST 2018 May 4 23:30
9:00 - KST
# Kuwait
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Kuwait 3:11:56 - LMT 1950
3:00 - +03
# Laos
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Vientiane 6:50:24 - LMT 1906 Jul 1
7:06:30 - PLMT 1911 May 1
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 2
7:00 - +07 1947 Apr 1
8:00 - +08 1955 Apr 15
7:00 - +07
# Lebanon
#
# From Saadallah Itani (2023-03-23):
# Lebanon ... announced today delay of Spring forward from March 25 to April 20.
#
# From Paul Eggert (2023-03-27):
# This announcement was by the Lebanese caretaker prime minister Najib Mikati.
# https://www.mtv.com.lb/en/News/Local/1352516/lebanon-postpones-daylight-saving-time-adoption
# A video was later leaked to the media of parliament speaker Nabih Berri
# asking Mikati to postpone DST to aid observance of Ramadan, Mikati objecting
# that this would cause problems such as scheduling airline flights, to which
# Berri interjected, "What flights?"
#
# The change was controversial and led to a partly-sectarian divide.
# Many Lebanese institutions, including the education ministry, the Maronite
# church, and two news channels LCBI and MTV, ignored the announcement and
# went ahead with the long-scheduled spring-forward on March 25/26, some
# arguing that the prime minister had not followed the law because the change
# had not been approved by the cabinet. Google went with the announcement;
# Apple ignored it. At least one bank followed the announcement for its doors,
# but ignored the announcement in internal computer systems.
# Beirut international airport listed two times for each departure.
# Dan Azzi wrote "My view is that this whole thing is a Dumb and Dumber movie."
# Eventually the prime minister backed down, said the cabinet had decided to
# stick with its 1998 decision, and that DST would begin midnight March 29/30.
# https://www.nna-leb.gov.lb/en/miscellaneous/604093/lebanon-has-two-times-of-day-amid-daylight-savings
# https://www.cnbc.com/2023/03/27/lebanon-in-two-different-time-zones-as-government-disagrees-on-daylight-savings.html
#
# Although we could model the chaos with two Zones, that would likely cause
# more trouble than it would cure. Since so many manual clocks and
# computer-based timestamps ignored the announcement, stick with official
# cabinet resolutions in the data while recording the prime minister's
# announcement as a comment. This is how we treated a similar situation in
# Rio de Janeiro in spring 1993.
#
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Lebanon 1920 only - Mar 28 0:00 1:00 S
Rule Lebanon 1920 only - Oct 25 0:00 0 -
Rule Lebanon 1921 only - Apr 3 0:00 1:00 S
Rule Lebanon 1921 only - Oct 3 0:00 0 -
Rule Lebanon 1922 only - Mar 26 0:00 1:00 S
Rule Lebanon 1922 only - Oct 8 0:00 0 -
Rule Lebanon 1923 only - Apr 22 0:00 1:00 S
Rule Lebanon 1923 only - Sep 16 0:00 0 -
Rule Lebanon 1957 1961 - May 1 0:00 1:00 S
Rule Lebanon 1957 1961 - Oct 1 0:00 0 -
Rule Lebanon 1972 only - Jun 22 0:00 1:00 S
Rule Lebanon 1972 1977 - Oct 1 0:00 0 -
Rule Lebanon 1973 1977 - May 1 0:00 1:00 S
Rule Lebanon 1978 only - Apr 30 0:00 1:00 S
Rule Lebanon 1978 only - Sep 30 0:00 0 -
Rule Lebanon 1984 1987 - May 1 0:00 1:00 S
Rule Lebanon 1984 1991 - Oct 16 0:00 0 -
Rule Lebanon 1988 only - Jun 1 0:00 1:00 S
Rule Lebanon 1989 only - May 10 0:00 1:00 S
Rule Lebanon 1990 1992 - May 1 0:00 1:00 S
Rule Lebanon 1992 only - Oct 4 0:00 0 -
Rule Lebanon 1993 max - Mar lastSun 0:00 1:00 S
Rule Lebanon 1993 1998 - Sep lastSun 0:00 0 -
Rule Lebanon 1999 max - Oct lastSun 0:00 0 -
# This one-time rule, announced by the prime minister first for April 21
# then for March 30, is commented out for reasons described above.
#Rule Lebanon 2023 only - Mar 30 0:00 1:00 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Beirut 2:22:00 - LMT 1880
2:00 Lebanon EE%sT
# Malaysia (eastern)
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 -
Rule NBorneo 1935 1941 - Dec 14 0:00 0 -
#
# Peninsular Malaysia
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Kuala_Lumpur 6:46:46 - LMT 1901 Jan 1
6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
7:00 - +07 1933 Jan 1
7:00 0:20 +0720 1936 Jan 1
7:20 - +0720 1941 Sep 1
7:30 - +0730 1942 Feb 16
9:00 - +09 1945 Sep 12
7:30 - +0730 1981 Dec 31 16:00u
8:00 - +08
#
# Sabah & Sarawak
# From Paul Eggert (2014-08-12):
# The data entries here are mostly from Shanks & Pottenger, but the 1942, 1945
# and 1982 transition dates are from Mok Ly Yng.
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Kuching 7:21:20 - LMT 1926 Mar
7:30 - %z 1933
8:00 NBorneo %z 1942 Feb 16
9:00 - %z 1945 Sep 12
8:00 - %z
# Maldives
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Indian/Maldives 4:54:00 - LMT 1880 # Malé
4:54:00 - MMT 1960 # Malé Mean Time
5:00 - %z
# Mongolia
# Shanks & Pottenger say that Mongolia has three time zones, but
# The USNO (1995-12-21) and the CIA map Standard Time Zones of the World
# (2005-03) both say that it has just one.
# From Oscar van Vlijmen (1999-12-11):
# General Information Mongolia
# (1999-09)
# "Time: Mongolia has two time zones. Three westernmost provinces of
# Bayan-Ölgii, Uvs, and Hovd are one hour earlier than the capital city, and
# the rest of the country follows the Ulaanbaatar time, which is UTC/GMT plus
# eight hours."
# From Rives McDow (1999-12-13):
# Mongolia discontinued the use of daylight savings time in 1999; 1998
# being the last year it was implemented. The dates of implementation I am
# unsure of, but most probably it was similar to Russia, except for the time
# of implementation may have been different....
# Some maps in the past have indicated that there was an additional time
# zone in the eastern part of Mongolia, including the provinces of Dornod,
# Sükhbaatar, and possibly Khentii.
# From Paul Eggert (1999-12-15):
# Naming and spelling is tricky in Mongolia.
# We'll use Hovd (also spelled Chovd and Khovd) to represent the west zone;
# the capital of the Hovd province is sometimes called Hovd, sometimes Dund-Us,
# and sometimes Jirgalanta (with variant spellings), but the name Hovd
# is good enough for our purposes.
# From Rives McDow (2001-05-13):
# In addition to Mongolia starting daylight savings as reported earlier
# (adopted DST on 2001-04-27 02:00 local time, ending 2001-09-28),
# there are three time zones.
#
# Provinces [at 7:00]: Bayan-Ölgii, Uvs, Khovd, Zavkhan, Govi-Altai
# Provinces [at 8:00]: Khövsgöl, Bulgan, Arkhangai, Khentii, Töv,
# Bayankhongor, Övörkhangai, Dundgovi, Dornogovi, Ömnögovi
# Provinces [at 9:00]: Dornod, Sükhbaatar
#
# [The province of Selenge is omitted from the above lists.]
# From Ganbold Ts., Ulaanbaatar (2004-04-17):
# Daylight saving occurs at 02:00 local time last Saturday of March.
# It will change back to normal at 02:00 local time last Saturday of
# September.... As I remember this rule was changed in 2001.
#
# From Paul Eggert (2004-04-17):
# For now, assume Rives McDow's informant got confused about Friday vs
# Saturday, and that his 2001 dates should have 1 added to them.
# From Paul Eggert (2005-07-26):
# We have wildly conflicting information about Mongolia's time zones.
# Bill Bonnet (2005-05-19) reports that the US Embassy in Ulaanbaatar says
# there is only one time zone and that DST is observed, citing Microsoft
# Windows XP as the source. Risto Nykänen (2005-05-16) reports that
# travelmongolia.org says there are two time zones (UT +07, +08) with no DST.
# Oscar van Vlijmen (2005-05-20) reports that the Mongolian Embassy in
# Washington, DC says there are two time zones, with DST observed.
# He also found
# http://ubpost.mongolnews.mn/index.php?subaction=showcomments&id=1111634894&archive=&start_from=&ucat=1&
# which also says that there is DST, and which has a comment by "Toddius"
# (2005-03-31 06:05 +0700) saying "Mongolia actually has 3.5 time zones.
# The West (OLGII) is +7 GMT, most of the country is ULAT is +8 GMT
# and some Eastern provinces are +9 GMT but Sükhbaatar Aimag is SUHK +8.5 GMT.
# The SUKH timezone is new this year, it is one of the few things the
# parliament passed during the tumultuous winter session."
# For now, let's ignore this information, until we have more confirmation.
# From Ganbold Ts. (2007-02-26):
# Parliament of Mongolia has just changed the daylight-saving rule in February.
# They decided not to adopt daylight-saving time....
# http://www.mongolnews.mn/index.php?module=unuudur&sec=view&id=15742
# From Deborah Goldsmith (2008-03-30):
# We received a bug report claiming that the tz database UTC offset for
# Asia/Choibalsan (GMT+09:00) is incorrect, and that it should be GMT
# +08:00 instead. Different sources appear to disagree with the tz
# database on this, e.g.:
#
# https://www.timeanddate.com/worldclock/city.html?n=1026
# http://www.worldtimeserver.com/current_time_in_MN.aspx
#
# both say GMT+08:00.
# From Steffen Thorsen (2008-03-31):
# eznis airways, which operates several domestic flights, has a flight
# schedule here:
# http://www.eznis.com/Container.jsp?id=112
# (click the English flag for English)
#
# There it appears that flights between Choibalsan and Ulaanbaatar arrive
# about 1:35 - 1:50 hours later in local clock time, no matter the
# direction, while Ulaanbaatar-Khovd takes 2 hours in the Eastern
# direction and 3:35 back, which indicates that Ulaanbaatar and Khovd are
# in different time zones (like we know about), while Choibalsan and
# Ulaanbaatar are in the same time zone (correction needed).
# From Arthur David Olson (2008-05-19):
# Assume that Choibalsan is indeed offset by 8:00.
# From Heitor David Pinto (2024-06-23):
# Sources about time zones in Mongolia seem to list one of two conflicting
# configurations. The first configuration, mentioned in a comment to the TZ
# database in 1999, citing a Mongolian government website, lists the provinces
# of Bayan-Ölgii, Khovd and Uvs in UTC+7, and the rest of the country in
# UTC+8. The second configuration, mentioned in a comment to the database in
# 2001, lists Bayan-Ölgii, Khovd, Uvs, Govi-Altai and Zavkhan in UTC+7, Dornod
# and Sükhbaatar in UTC+9, and the rest of the country in UTC+8.
#
# The first configuration is still mentioned by several Mongolian travel
# agencies:
# https://www.adventurerider.mn/en/page/about_mongolia
# http://www.naturetours.mn/nt/mongolia.php
# https://www.newjuulchin.mn/web/content/7506?unique=fa24a0f6e96e022a3578ee5195ac879638c734ce
#
# It also matches these flight schedules in 2013:
# http://web.archive.org/web/20130722023600/https://www.hunnuair.com/en/timetabled
# The flight times imply that the airports of Uliastai (Zavkhan), Choibalsan
# (Dornod) and Altai (Govi-Altai) are in the same time zone as Ulaanbaatar,
# and Khovd is one hour behind....
#
# The second configuration was mentioned by an official of the Mongolian
# standards agency in an interview in 2014: https://ikon.mn/n/9v6
# And it's still listed by the Mongolian aviation agency:
# https://ais.mn/files/aip/eAIP/2023-12-25/html/eSUP/ZM-eSUP-23-04-en-MN.html
#
# ... I believe that the first configuration is what is actually observed in
# Mongolia and has been so all along, at least since 1999. The second
# configuration closely matches the ideal time zone boundaries at 97.5° E and
# 112.5° E but it doesn't seem to be used in practice.
# From Ganbold Tsagaankhuu (2015-03-10):
# It seems like yesterday Mongolian Government meeting has concluded to use
# daylight saving time in Mongolia.... Starting at 2:00AM of last Saturday of
# March 2015, daylight saving time starts. And 00:00AM of last Saturday of
# September daylight saving time ends. Source:
# http://zasag.mn/news/view/8969
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Mongol 1983 1984 - Apr 1 0:00 1:00 -
Rule Mongol 1983 only - Oct 1 0:00 0 -
# Shanks & Pottenger and IATA SSIM say 1990s switches occurred at 00:00,
# but McDow says the 2001 switches occurred at 02:00. Also, IATA SSIM
# (1996-09) says 1996-10-25. Go with Shanks & Pottenger through 1998.
#
# Shanks & Pottenger say that the Sept. 1984 through Sept. 1990 switches
# in Choibalsan (more precisely, in Dornod and Sükhbaatar) took place
# at 02:00 standard time, not at 00:00 local time as in the rest of
# the country. That would be odd, and possibly is a result of their
# correction of 02:00 (in the previous edition) not being done correctly
# in the latest edition; so ignore it for now.
# From Ganbold Tsagaankhuu (2017-02-09):
# Mongolian Government meeting has concluded today to cancel daylight
# saving time adoption in Mongolia. Source: http://zasag.mn/news/view/16192
Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 -
Rule Mongol 1984 1998 - Sep lastSun 0:00 0 -
# IATA SSIM (1999-09) says Mongolia no longer observes DST.
Rule Mongol 2001 only - Apr lastSat 2:00 1:00 -
Rule Mongol 2001 2006 - Sep lastSat 2:00 0 -
Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 -
Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 -
Rule Mongol 2015 2016 - Sep lastSat 0:00 0 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
# Hovd, a.k.a. Chovd, Dund-Us, Dzhargalant, Khovd, Jirgalanta
Zone Asia/Hovd 6:06:36 - LMT 1905 Aug
6:00 - %z 1978
7:00 Mongol %z
# Ulaanbaatar, a.k.a. Ulan Bataar, Ulan Bator, Urga
Zone Asia/Ulaanbaatar 7:07:32 - LMT 1905 Aug
7:00 - %z 1978
8:00 Mongol %z
# Nepal
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Kathmandu 5:41:16 - LMT 1920
5:30 - %z 1986
5:45 - %z
# Oman
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Muscat 3:54:24 - LMT 1920
4:00 - +04
# Pakistan
# From Rives McDow (2002-03-13):
# I have been advised that Pakistan has decided to adopt dst on a
# TRIAL basis for one year, starting 00:01 local time on April 7, 2002
# and ending at 00:01 local time October 6, 2002. This is what I was
# told, but I believe that the actual time of change may be 00:00; the
# 00:01 was to make it clear which day it was on.
# From Paul Eggert (2002-03-15):
# Jesper Nørgaard found this URL:
# http://www.pak.gov.pk/public/news/app/app06_dec.htm
# (dated 2001-12-06) which says that the Cabinet adopted a scheme "to
# advance the clocks by one hour on the night between the first
# Saturday and Sunday of April and revert to the original position on
# 15th October each year". This agrees with McDow's 04-07 at 00:00,
# but disagrees about the October transition, and makes it sound like
# it's not on a trial basis. Also, the "between the first Saturday
# and Sunday of April" phrase, if taken literally, means that the
# transition takes place at 00:00 on the first Sunday on or after 04-02.
# From Paul Eggert (2003-02-09):
# DAWN reported on 2002-10-05
# that 2002 DST ended that day at midnight. Go with McDow for now.
# From Steffen Thorsen (2003-03-14):
# According to http://www.dawn.com/2003/03/07/top15.htm
# there will be no DST in Pakistan this year:
#
# ISLAMABAD, March 6: Information and Media Development Minister Sheikh
# Rashid Ahmed on Thursday said the cabinet had reversed a previous
# decision to advance clocks by one hour in summer and put them back by
# one hour in winter with the aim of saving light hours and energy.
#
# The minister told a news conference that the experiment had rather
# shown 8 per cent higher consumption of electricity.
# From Alex Krivenyshev (2008-05-15):
#
# Here is an article that Pakistan plan to introduce Daylight Saving Time
# on June 1, 2008 for 3 months.
#
# "... The federal cabinet on Wednesday announced a new conservation plan to
# help reduce load shedding by approving the closure of commercial centres at
# 9pm and moving clocks forward by one hour for the next three months. ...."
#
# http://www.worldtimezone.com/dst_news/dst_news_pakistan01.html
# http://www.dailytimes.com.pk/default.asp?page=2008\05\15\story_15-5-2008_pg1_4
# From Arthur David Olson (2008-05-19):
# XXX--midnight transitions is a guess; 2008 only is a guess.
# From Alexander Krivenyshev (2008-08-28):
# Pakistan government has decided to keep the watches one-hour advanced
# for another 2 months - plan to return to Standard Time on October 31
# instead of August 31.
#
# http://www.worldtimezone.com/dst_news/dst_news_pakistan02.html
# http://dailymailnews.com/200808/28/news/dmbrn03.html
# From Alexander Krivenyshev (2009-04-08):
# Based on previous media reports that "... proposed plan to
# advance clocks by one hour from May 1 will cause disturbance
# to the working schedules rather than bringing discipline in
# official working."
# http://www.thenews.com.pk/daily_detail.asp?id=171280
#
# recent news that instead of May 2009 - Pakistan plan to
# introduce DST from April 15, 2009
#
# FYI: Associated Press Of Pakistan
# April 08, 2009
# Cabinet okays proposal to advance clocks by one hour from April 15
# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=73043&Itemid=1
# http://www.worldtimezone.com/dst_news/dst_news_pakistan05.html
#
# ....
# The Federal Cabinet on Wednesday approved the proposal to
# advance clocks in the country by one hour from April 15 to
# conserve energy"
# From Steffen Thorsen (2009-09-17):
# "The News International," Pakistan reports that: "The Federal
# Government has decided to restore the previous time by moving the
# clocks backward by one hour from October 1. A formal announcement to
# this effect will be made after the Prime Minister grants approval in
# this regard."
# http://www.thenews.com.pk/updates.asp?id=87168
# From Alexander Krivenyshev (2009-09-28):
# According to Associated Press Of Pakistan, it is confirmed that
# Pakistan clocks across the country would be turned back by an hour from
# October 1, 2009.
#
# "Clocks to go back one hour from 1 Oct"
# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=86715&Itemid=2
# http://www.worldtimezone.com/dst_news/dst_news_pakistan07.htm
#
# From Steffen Thorsen (2009-09-29):
# Now they seem to have changed their mind, November 1 is the new date:
# http://www.thenews.com.pk/top_story_detail.asp?Id=24742
# "The country's clocks will be reversed by one hour on November 1.
# Officials of Federal Ministry for Interior told this to Geo News on
# Monday."
#
# And more importantly, it seems that these dates will be kept every year:
# "It has now been decided that clocks will be wound forward by one hour
# on April 15 and reversed by an hour on November 1 every year without
# obtaining prior approval, the officials added."
#
# We have confirmed this year's end date with both with the Ministry of
# Water and Power and the Pakistan Electric Power Company:
# https://www.timeanddate.com/news/time/pakistan-ends-dst09.html
# From Christoph Göhre (2009-10-01):
# [T]he German Consulate General in Karachi reported me today that Pakistan
# will go back to standard time on 1st of November.
# From Steffen Thorsen (2010-03-26):
# Steffen Thorsen wrote:
# > On Thursday (2010-03-25) it was announced that DST would start in
# > Pakistan on 2010-04-01.
# >
# > Then today, the president said that they might have to revert the
# > decision if it is not supported by the parliament. So at the time
# > being, it seems unclear if DST will be actually observed or not - but
# > April 1 could be a more likely date than April 15.
# Now, it seems that the decision to not observe DST in final:
#
# "Govt Withdraws Plan To Advance Clocks"
# http://www.apakistannews.com/govt-withdraws-plan-to-advance-clocks-172041
#
# "People laud PM's announcement to end DST"
# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=99374&Itemid=2
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Pakistan 2002 only - Apr Sun>=2 0:00 1:00 S
Rule Pakistan 2002 only - Oct Sun>=2 0:00 0 -
Rule Pakistan 2008 only - Jun 1 0:00 1:00 S
Rule Pakistan 2008 2009 - Nov 1 0:00 0 -
Rule Pakistan 2009 only - Apr 15 0:00 1:00 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Karachi 4:28:12 - LMT 1907
5:30 - %z 1942 Sep
5:30 1:00 %z 1945 Oct 15
5:30 - %z 1951 Sep 30
5:00 - %z 1971 Mar 26
5:00 Pakistan PK%sT # Pakistan Time
# Palestine
# From Amos Shapir (1998-02-15):
#
# From 1917 until 1948-05-15, all of Palestine, including the parts now
# known as the Gaza Strip and the West Bank, was under British rule.
# Therefore the rules given for Israel for that period, apply there too...
#
# The Gaza Strip was under Egyptian rule between 1948-05-15 until 1967-06-05
# (except a short occupation by Israel from 1956-11 till 1957-03, but no
# time zone was affected then). It was never formally annexed to Egypt,
# though.
#
# The rest of Palestine was under Jordanian rule at that time, formally
# annexed in 1950 as the West Bank (and the word "Trans" was dropped from
# the country's previous name of "the Hashemite Kingdom of the
# Trans-Jordan"). So the rules for Jordan for that time apply. Major
# towns in that area are Nablus (Shchem), El-Halil (Hebron), Ramallah, and
# East Jerusalem.
#
# Both areas were occupied by Israel in June 1967, but not annexed (except
# for East Jerusalem). They were on Israel time since then; there might
# have been a Military Governor's order about time zones, but I'm not aware
# of any (such orders may have been issued semi-annually whenever summer
# time was in effect, but maybe the legal aspect of time was just neglected).
#
# The Palestinian Authority was established in 1993, and got hold of most
# towns in the West Bank and Gaza by 1995. I know that in order to
# demonstrate...independence, they have been switching to
# summer time and back on a different schedule than Israel's, but I don't
# know when this was started, or what algorithm is used (most likely the
# Jordanian one).
#
# To summarize, the table should probably look something like that:
#
# Area \ when | 1918-1947 | 1948-1967 | 1967-1995 | 1996-
# ------------+-----------+-----------+-----------+-----------
# Israel | Zion | Zion | Zion | Zion
# West bank | Zion | Jordan | Zion | Jordan
# Gaza | Zion | Egypt | Zion | Jordan
#
# I guess more info may be available from the PA's web page (if/when they
# have one).
# From Paul Eggert (2006-03-22):
# Shanks & Pottenger write that Gaza did not observe DST until 1957, but go
# with Shapir and assume that it observed DST from 1940 through 1947,
# and that it used Jordanian rules starting in 1996.
# We don't yet need a separate entry for the West Bank, since
# the only differences between it and Gaza that we know about
# occurred before our cutoff date of 1970.
# However, as we get more information, we may need to add entries
# for parts of the West Bank as they transitioned from Israel's rules
# to Palestine's rules.
# From IINS News Service - Israel - 1998-03-23 10:38:07 Israel time,
# forwarded by Ephraim Silverberg:
#
# Despite the fact that Israel changed over to daylight savings time
# last week, the PLO Authority (PA) has decided not to turn its clocks
# one-hour forward at this time. As a sign of independence from Israeli rule,
# the PA has decided to implement DST in April.
# From Paul Eggert (1999-09-20):
# Daoud Kuttab writes in Holiday havoc
# http://www.jpost.com/com/Archive/22.Apr.1999/Opinion/Article-2.html
# (Jerusalem Post, 1999-04-22) that
# the Palestinian National Authority changed to DST on 1999-04-15.
# I vaguely recall that they switch back in October (sorry, forgot the source).
# For now, let's assume that the spring switch was at 24:00,
# and that they switch at 0:00 on the 3rd Fridays of April and October.
# From Paul Eggert (2005-11-22):
# Starting 2004 transitions are from Steffen Thorsen's web site timeanddate.com.
# From Steffen Thorsen (2005-11-23):
# A user from Gaza reported that Gaza made the change early because of
# the Ramadan. Next year Ramadan will be even earlier, so I think
# there is a good chance next year's end date will be around two weeks
# earlier - the same goes for Jordan.
# From Steffen Thorsen (2006-08-17):
# I was informed by a user in Bethlehem that in Bethlehem it started the
# same day as Israel, and after checking with other users in the area, I
# was informed that they started DST one day after Israel. I was not
# able to find any authoritative sources at the time, nor details if
# Gaza changed as well, but presumed Gaza to follow the same rules as
# the West Bank.
# From Steffen Thorsen (2006-09-26):
# according to the Palestine News Network (2006-09-19):
# http://english.pnn.ps/index.php?option=com_content&task=view&id=596&Itemid=5
# > The Council of Ministers announced that this year its winter schedule
# > will begin early, as of midnight Thursday. It is also time to turn
# > back the clocks for winter. Friday will begin an hour late this week.
# I guess it is likely that next year's date will be moved as well,
# because of the Ramadan.
# From Jesper Nørgaard Welen (2007-09-18):
# According to Steffen Thorsen's web site the Gaza Strip and the rest of the
# Palestinian territories left DST early on 13.th. of September at 2:00.
# From Paul Eggert (2007-09-20):
# My understanding is that Gaza and the West Bank disagree even over when
# the weekend is (Thursday+Friday versus Friday+Saturday), so I'd be a bit
# surprised if they agreed about DST. But for now, assume they agree.
# For lack of better information, predict that future changes will be
# the 2nd Thursday of September at 02:00.
# From Alexander Krivenyshev (2008-08-28):
# Here is an article, that Mideast running on different clocks at Ramadan.
#
# Gaza Strip (as Egypt) ended DST at midnight Thursday (Aug 28, 2008), while
# the West Bank will end Daylight Saving Time at midnight Sunday (Aug 31, 2008).
#
# http://www.guardian.co.uk/world/feedarticle/7759001
# http://www.abcnews.go.com/International/wireStory?id=5676087
# http://www.worldtimezone.com/dst_news/dst_news_gazastrip01.html
# From Alexander Krivenyshev (2009-03-26):
# According to the Palestine News Network (arabic.pnn.ps), Palestinian
# government decided to start Daylight Time on Thursday night March
# 26 and continue until the night of 27 September 2009.
#
# (in Arabic)
# http://arabic.pnn.ps/index.php?option=com_content&task=view&id=50850
#
# (English translation)
# http://www.worldtimezone.com/dst_news/dst_news_westbank01.html
# From Steffen Thorsen (2009-08-31):
# Palestine's Council of Ministers announced that they will revert back to
# winter time on Friday, 2009-09-04.
#
# One news source:
# http://www.safa.ps/ara/?action=showdetail&seid=4158
# (Palestinian press agency, Arabic),
# Google translate: "Decided that the Palestinian government in Ramallah
# headed by Salam Fayyad, the start of work in time for the winter of
# 2009, starting on Friday approved the fourth delay Sept. clock sixty
# minutes per hour as of Friday morning."
#
# We are not sure if Gaza will do the same, last year they had a different
# end date, we will keep this page updated:
# https://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html
# From Alexander Krivenyshev (2009-09-02):
# Seems that Gaza Strip will go back to Winter Time same date as West Bank.
#
# According to Palestinian Ministry Of Interior, West Bank and Gaza Strip plan
# to change time back to Standard time on September 4, 2009.
#
# "Winter time unite the West Bank and Gaza"
# (from Palestinian National Authority):
# http://www.moi.gov.ps/en/?page=633167343250594025&nid=11505
# http://www.worldtimezone.com/dst_news/dst_news_gazastrip02.html
# From Alexander Krivenyshev (2010-03-19):
# According to Voice of Palestine DST will last for 191 days, from March
# 26, 2010 till "the last Sunday before the tenth day of Tishri
# (October), each year" (October 03, 2010?)
#
# http://palvoice.org/forums/showthread.php?t=245697
# (in Arabic)
# http://www.worldtimezone.com/dst_news/dst_news_westbank03.html
# From Steffen Thorsen (2010-03-24):
# ...Ma'an News Agency reports that Hamas cabinet has decided it will
# start one day later, at 12:01am. Not sure if they really mean 12:01am or
# noon though:
#
# http://www.maannews.net/eng/ViewDetails.aspx?ID=271178
# (Ma'an News Agency)
# "At 12:01am Friday, clocks in Israel and the West Bank will change to
# 1:01am, while Gaza clocks will change at 12:01am Saturday morning."
# From Steffen Thorsen (2010-08-11):
# According to several sources, including
# http://www.maannews.net/eng/ViewDetails.aspx?ID=306795
# the clocks were set back one hour at 2010-08-11 00:00:00 local time in
# Gaza and the West Bank.
# Some more background info:
# https://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html
# From Steffen Thorsen (2011-08-26):
# Gaza and the West Bank did go back to standard time in the beginning of
# August, and will now enter daylight saving time again on 2011-08-30
# 00:00 (so two periods of DST in 2011). The pause was because of
# Ramadan.
#
# http://www.maannews.net/eng/ViewDetails.aspx?ID=416217
# Additional info:
# https://www.timeanddate.com/news/time/palestine-dst-2011.html
# From Alexander Krivenyshev (2011-08-27):
# According to the article in The Jerusalem Post:
# "...Earlier this month, the Palestinian government in the West Bank decided to
# move to standard time for 30 days, during Ramadan. The Palestinians in the
# Gaza Strip accepted the change and also moved their clocks one hour back.
# The Hamas government said on Saturday that it won't observe summertime after
# the Muslim feast of Id al-Fitr, which begins on Tuesday..."
# ...
# https://www.jpost.com/MiddleEast/Article.aspx?id=235650
# http://www.worldtimezone.com/dst_news/dst_news_gazastrip05.html
# The rules for Egypt are stolen from the 'africa' file.
# From Steffen Thorsen (2011-09-30):
# West Bank did end Daylight Saving Time this morning/midnight (2011-09-30
# 00:00).
# So West Bank and Gaza now have the same time again.
#
# Many sources, including:
# http://www.maannews.net/eng/ViewDetails.aspx?ID=424808
# From Steffen Thorsen (2012-03-26):
# Palestinian news sources tell that both Gaza and West Bank will start DST
# on Friday (Thursday midnight, 2012-03-29 24:00).
# Some of many sources in Arabic:
# http://www.samanews.com/index.php?act=Show&id=122638
#
# http://safa.ps/details/news/74352/بدء-التوقيت-الصيفي-بالضفة-وغزة-ليلة-الجمعة.html
#
# Our brief summary:
# https://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html
# From Steffen Thorsen (2013-03-26):
# The following news sources tells that Palestine will "start daylight saving
# time from midnight on Friday, March 29, 2013" (translated).
# [These are in Arabic and are for Gaza and for Ramallah, respectively.]
# http://www.samanews.com/index.php?act=Show&id=154120
# http://safa.ps/details/news/99844/رام-الله-بدء-التوقيت-الصيفي-29-الجاري.html
# From Steffen Thorsen (2013-09-24):
# The Gaza and West Bank are ending DST Thursday at midnight
# (2013-09-27 00:00:00) (one hour earlier than last year...).
# This source in English, says "that winter time will go into effect
# at midnight on Thursday in the West Bank and Gaza Strip":
# http://english.wafa.ps/index.php?action=detail&id=23246
# official source...:
# http://www.palestinecabinet.gov.ps/ar/Views/ViewDetails.aspx?pid=1252
# From Steffen Thorsen (2015-03-03):
# Sources such as http://www.alquds.com/news/article/view/id/548257
# and https://www.raya.ps/ar/news/890705.html say Palestine areas will
# start DST on 2015-03-28 00:00 which is one day later than expected.
#
# From Paul Eggert (2015-03-03):
# https://www.timeanddate.com/time/change/west-bank/ramallah?year=2014
# says that the fall 2014 transition was Oct 23 at 24:00.
# From Hannah Kreitem (2016-03-09):
# http://www.palestinecabinet.gov.ps/WebSite/ar/ViewDetails?ID=31728
# [Google translation]: "The Council also decided to start daylight
# saving in Palestine as of one o'clock on Saturday morning,
# 2016-03-26, to provide the clock 60 minutes ahead."
# From Sharef Mustafa (2016-10-19):
# [T]he Palestinian cabinet decision (Mar 8th 2016) published on
# http://www.palestinecabinet.gov.ps/WebSite/Upload/Decree/GOV_17/16032016134830.pdf
# states that summer time will end on Oct 29th at 01:00.
# From Sharef Mustafa (2018-03-16):
# Palestine summer time will start on Mar 24th 2018 ...
# http://www.palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e7a42ab7-ee23-435a-b9c8-a4f7e81f3817
# From Even Scharning (2019-03-23):
# http://pnn.ps/news/401130
# http://palweather.ps/ar/node/50136.html
#
# From Sharif Mustafa (2019-03-26):
# The Palestinian cabinet announced today that the switch to DST will
# be on Fri Mar 29th 2019 by advancing the clock by 60 minutes.
# http://palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e54e9ea1-50ee-4137-84df-0d6c78da259b
#
# From Even Scharning (2019-04-10):
# Our source in Palestine said it happened Friday 29 at 00:00 local time....
# From Sharef Mustafa (2019-10-18):
# Palestine summer time will end on midnight Oct 26th 2019 ...
#
# From Steffen Thorsen (2020-10-20):
# Some sources such as these say, and display on clocks, that DST ended at
# midnight last year...
# https://www.amad.ps/ar/post/320006
#
# From Tim Parenti (2020-10-20):
# The report of the Palestinian Cabinet meeting of 2019-10-14 confirms
# a decision on (translated): "The start of the winter time in Palestine, by
# delaying the clock by sixty minutes, starting from midnight on Friday /
# Saturday corresponding to 26/10/2019."
# http://www.palestinecabinet.gov.ps/portal/meeting/details/43948
# From Sharef Mustafa (2020-10-20):
# As per the palestinian cabinet announcement yesterday , the day light saving
# shall [end] on Oct 24th 2020 at 01:00AM by delaying the clock by 60 minutes.
# http://www.palestinecabinet.gov.ps/portal/Meeting/Details/51584
# From Pierre Cashon (2020-10-20):
# The summer time this year started on March 28 at 00:00.
# https://wafa.ps/ar_page.aspx?id=GveQNZa872839351758aGveQNZ
# http://www.palestinecabinet.gov.ps/portal/meeting/details/50284
# The winter time in 2015 started on October 23 at 01:00.
# https://wafa.ps/ar_page.aspx?id=CgpCdYa670694628582aCgpCdY
# http://www.palestinecabinet.gov.ps/portal/meeting/details/27583
# From P Chan (2021-10-18):
# http://wafa.ps/Pages/Details/34701
# Palestine winter time will start from midnight 2021-10-29 (Thursday-Friday).
#
# From Heba Hemad, Palestine Ministry of Telecom & IT (2021-10-20):
# ... winter time will begin in Palestine from Friday 10-29, 01:00 AM
# by 60 minutes backwards.
#
# From Tim Parenti (2021-10-25), per Paul Eggert (2021-10-24):
# Guess future fall transitions at 01:00 on the Friday preceding October's
# last Sunday (i.e., Fri>=23), as this is more consistent with recent practice.
# From Heba Hamad (2022-03-10):
# summer time will begin in Palestine from Sunday 03-27-2022, 00:00 AM.
# From Heba Hamad (2022-08-30):
# winter time will begin in Palestine from Saturday 10-29, 02:00 AM by
# 60 minutes backwards. Also the state of Palestine adopted the summer
# and winter time for the years: 2023,2024,2025,2026 ...
# https://mm.icann.org/pipermail/tz/attachments/20220830/9f024566/Time-0001.pdf
# (2022-08-31): ... the Saturday before the last Sunday in March and October
# at 2:00 AM ,for the years from 2023 to 2026.
# (2022-09-05): https://mtit.pna.ps/Site/New/1453
# From Heba Hamad (2023-03-22):
# ... summer time will begin in Palestine from Saturday 04-29-2023,
# 02:00 AM by 60 minutes forward.
# From Heba Hemad (2023-10-09):
# ... winter time will begin in Palestine from Saturday 10-28-2023,
# 02:00 AM by 60 minutes back.
#
# From Heba Hamad (2024-01-25):
# the summer time for the years 2024,2025 will begin in Palestine
# from Saturday at 02:00 AM by 60 minutes forward as shown below:
# year date
# 2024 2024-04-20
# 2025 2025-04-12
#
# From Paul Eggert (2024-01-25):
# For now, guess that spring and fall transitions will normally
# continue to use 2022's rules, that during DST Palestine will switch
# to standard time at 02:00 the last Saturday before Ramadan and back
# to DST at 02:00 the second Saturday after Ramadan, and that
# if the normal spring-forward or fall-back transition occurs during
# Ramadan the former is delayed and the latter advanced.
# To implement this, I predicted Ramadan-oriented transition dates for
# 2026 through 2086 by running the following program under GNU Emacs 29.2,
# with the results integrated by hand into the table below.
# Predictions after 2086 are approximated without Ramadan.
#
# (let ((islamic-year 1447))
# (require 'cal-islam)
# (while (< islamic-year 1510)
# (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year)))
# (b (+ 1 (calendar-islamic-to-absolute (list 10 1 islamic-year))))
# (saturday 6))
# (while (/= saturday (mod (setq a (1- a)) 7)))
# (while (/= saturday (mod b 7))
# (setq b (1+ b)))
# (setq b (+ 7 b))
# (setq a (calendar-gregorian-from-absolute a))
# (setq b (calendar-gregorian-from-absolute b))
# (insert
# (format
# (concat "Rule Palestine\t%d\tonly\t-\t%s\t%2d\t2:00\t0\t-\n"
# "Rule Palestine\t%d\tonly\t-\t%s\t%2d\t2:00\t1:00\tS\n")
# (car (cdr (cdr a))) (calendar-month-name (car a) t) (car (cdr a))
# (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b)))))
# (setq islamic-year (+ 1 islamic-year))))
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule EgyptAsia 1957 only - May 10 0:00 1:00 S
Rule EgyptAsia 1957 1958 - Oct 1 0:00 0 -
Rule EgyptAsia 1958 only - May 1 0:00 1:00 S
Rule EgyptAsia 1959 1967 - May 1 1:00 1:00 S
Rule EgyptAsia 1959 1965 - Sep 30 3:00 0 -
Rule EgyptAsia 1966 only - Oct 1 3:00 0 -
Rule Palestine 1999 2005 - Apr Fri>=15 0:00 1:00 S
Rule Palestine 1999 2003 - Oct Fri>=15 0:00 0 -
Rule Palestine 2004 only - Oct 1 1:00 0 -
Rule Palestine 2005 only - Oct 4 2:00 0 -
Rule Palestine 2006 2007 - Apr 1 0:00 1:00 S
Rule Palestine 2006 only - Sep 22 0:00 0 -
Rule Palestine 2007 only - Sep 13 2:00 0 -
Rule Palestine 2008 2009 - Mar lastFri 0:00 1:00 S
Rule Palestine 2008 only - Sep 1 0:00 0 -
Rule Palestine 2009 only - Sep 4 1:00 0 -
Rule Palestine 2010 only - Mar 26 0:00 1:00 S
Rule Palestine 2010 only - Aug 11 0:00 0 -
Rule Palestine 2011 only - Apr 1 0:01 1:00 S
Rule Palestine 2011 only - Aug 1 0:00 0 -
Rule Palestine 2011 only - Aug 30 0:00 1:00 S
Rule Palestine 2011 only - Sep 30 0:00 0 -
Rule Palestine 2012 2014 - Mar lastThu 24:00 1:00 S
Rule Palestine 2012 only - Sep 21 1:00 0 -
Rule Palestine 2013 only - Sep 27 0:00 0 -
Rule Palestine 2014 only - Oct 24 0:00 0 -
Rule Palestine 2015 only - Mar 28 0:00 1:00 S
Rule Palestine 2015 only - Oct 23 1:00 0 -
Rule Palestine 2016 2018 - Mar Sat<=30 1:00 1:00 S
Rule Palestine 2016 2018 - Oct Sat<=30 1:00 0 -
Rule Palestine 2019 only - Mar 29 0:00 1:00 S
Rule Palestine 2019 only - Oct Sat<=30 0:00 0 -
Rule Palestine 2020 2021 - Mar Sat<=30 0:00 1:00 S
Rule Palestine 2020 only - Oct 24 1:00 0 -
Rule Palestine 2021 only - Oct 29 1:00 0 -
Rule Palestine 2022 only - Mar 27 0:00 1:00 S
Rule Palestine 2022 2035 - Oct Sat<=30 2:00 0 -
Rule Palestine 2023 only - Apr 29 2:00 1:00 S
Rule Palestine 2024 only - Apr 20 2:00 1:00 S
Rule Palestine 2025 only - Apr 12 2:00 1:00 S
Rule Palestine 2026 2054 - Mar Sat<=30 2:00 1:00 S
Rule Palestine 2036 only - Oct 18 2:00 0 -
Rule Palestine 2037 only - Oct 10 2:00 0 -
Rule Palestine 2038 only - Sep 25 2:00 0 -
Rule Palestine 2039 only - Sep 17 2:00 0 -
Rule Palestine 2040 only - Sep 1 2:00 0 -
Rule Palestine 2040 only - Oct 20 2:00 1:00 S
Rule Palestine 2040 2067 - Oct Sat<=30 2:00 0 -
Rule Palestine 2041 only - Aug 24 2:00 0 -
Rule Palestine 2041 only - Oct 5 2:00 1:00 S
Rule Palestine 2042 only - Aug 16 2:00 0 -
Rule Palestine 2042 only - Sep 27 2:00 1:00 S
Rule Palestine 2043 only - Aug 1 2:00 0 -
Rule Palestine 2043 only - Sep 19 2:00 1:00 S
Rule Palestine 2044 only - Jul 23 2:00 0 -
Rule Palestine 2044 only - Sep 3 2:00 1:00 S
Rule Palestine 2045 only - Jul 15 2:00 0 -
Rule Palestine 2045 only - Aug 26 2:00 1:00 S
Rule Palestine 2046 only - Jun 30 2:00 0 -
Rule Palestine 2046 only - Aug 18 2:00 1:00 S
Rule Palestine 2047 only - Jun 22 2:00 0 -
Rule Palestine 2047 only - Aug 3 2:00 1:00 S
Rule Palestine 2048 only - Jun 6 2:00 0 -
Rule Palestine 2048 only - Jul 25 2:00 1:00 S
Rule Palestine 2049 only - May 29 2:00 0 -
Rule Palestine 2049 only - Jul 10 2:00 1:00 S
Rule Palestine 2050 only - May 21 2:00 0 -
Rule Palestine 2050 only - Jul 2 2:00 1:00 S
Rule Palestine 2051 only - May 6 2:00 0 -
Rule Palestine 2051 only - Jun 24 2:00 1:00 S
Rule Palestine 2052 only - Apr 27 2:00 0 -
Rule Palestine 2052 only - Jun 8 2:00 1:00 S
Rule Palestine 2053 only - Apr 12 2:00 0 -
Rule Palestine 2053 only - May 31 2:00 1:00 S
Rule Palestine 2054 only - Apr 4 2:00 0 -
Rule Palestine 2054 only - May 23 2:00 1:00 S
Rule Palestine 2055 only - May 8 2:00 1:00 S
Rule Palestine 2056 only - Apr 29 2:00 1:00 S
Rule Palestine 2057 only - Apr 14 2:00 1:00 S
Rule Palestine 2058 only - Apr 6 2:00 1:00 S
Rule Palestine 2059 max - Mar Sat<=30 2:00 1:00 S
Rule Palestine 2068 only - Oct 20 2:00 0 -
Rule Palestine 2069 only - Oct 12 2:00 0 -
Rule Palestine 2070 only - Oct 4 2:00 0 -
Rule Palestine 2071 only - Sep 19 2:00 0 -
Rule Palestine 2072 only - Sep 10 2:00 0 -
Rule Palestine 2072 only - Oct 22 2:00 1:00 S
Rule Palestine 2072 max - Oct Sat<=30 2:00 0 -
Rule Palestine 2073 only - Sep 2 2:00 0 -
Rule Palestine 2073 only - Oct 14 2:00 1:00 S
Rule Palestine 2074 only - Aug 18 2:00 0 -
Rule Palestine 2074 only - Oct 6 2:00 1:00 S
Rule Palestine 2075 only - Aug 10 2:00 0 -
Rule Palestine 2075 only - Sep 21 2:00 1:00 S
Rule Palestine 2076 only - Jul 25 2:00 0 -
Rule Palestine 2076 only - Sep 12 2:00 1:00 S
Rule Palestine 2077 only - Jul 17 2:00 0 -
Rule Palestine 2077 only - Sep 4 2:00 1:00 S
Rule Palestine 2078 only - Jul 9 2:00 0 -
Rule Palestine 2078 only - Aug 20 2:00 1:00 S
Rule Palestine 2079 only - Jun 24 2:00 0 -
Rule Palestine 2079 only - Aug 12 2:00 1:00 S
Rule Palestine 2080 only - Jun 15 2:00 0 -
Rule Palestine 2080 only - Jul 27 2:00 1:00 S
Rule Palestine 2081 only - Jun 7 2:00 0 -
Rule Palestine 2081 only - Jul 19 2:00 1:00 S
Rule Palestine 2082 only - May 23 2:00 0 -
Rule Palestine 2082 only - Jul 11 2:00 1:00 S
Rule Palestine 2083 only - May 15 2:00 0 -
Rule Palestine 2083 only - Jun 26 2:00 1:00 S
Rule Palestine 2084 only - Apr 29 2:00 0 -
Rule Palestine 2084 only - Jun 17 2:00 1:00 S
Rule Palestine 2085 only - Apr 21 2:00 0 -
Rule Palestine 2085 only - Jun 9 2:00 1:00 S
Rule Palestine 2086 only - Apr 13 2:00 0 -
Rule Palestine 2086 only - May 25 2:00 1:00 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Gaza 2:17:52 - LMT 1900 Oct
2:00 Zion EET/EEST 1948 May 15
2:00 EgyptAsia EE%sT 1967 Jun 5
2:00 Zion I%sT 1996
2:00 Jordan EE%sT 1999
2:00 Palestine EE%sT 2008 Aug 29 0:00
2:00 - EET 2008 Sep
2:00 Palestine EE%sT 2010
2:00 - EET 2010 Mar 27 0:01
2:00 Palestine EE%sT 2011 Aug 1
2:00 - EET 2012
2:00 Palestine EE%sT
Zone Asia/Hebron 2:20:23 - LMT 1900 Oct
2:00 Zion EET/EEST 1948 May 15
2:00 EgyptAsia EE%sT 1967 Jun 5
2:00 Zion I%sT 1996
2:00 Jordan EE%sT 1999
2:00 Palestine EE%sT
# Paracel Is
# no information
# Philippines
# From Paul Eggert (2024-01-21):
# The Spanish initially used American (west-of-Greenwich) time.
# It is unknown what time Manila kept when the British occupied it from
# 1762-10-06 through 1764-04; for now assume it kept American time.
# On 1844-08-16, Narciso Clavería, governor-general of the
# Philippines, issued a proclamation announcing that 1844-12-30 was to
# be immediately followed by 1845-01-01; see R.H. van Gent's
# History of the International Date Line
# https://webspace.science.uu.nl/~gent0113/idl/idl_philippines.htm
# From P Chan (2021-05-10):
# Here's a fairly comprehensive article in Japanese:
# https://wiki.suikawiki.org/n/Philippine%20Time
# (2021-05-16):
# According to the references listed in the article,
# the periods that the Philippines (Manila) observed DST or used +9 are:
#
# 1936-10-31 24:00 to 1937-01-15 24:00
# (Proclamation No. 104, Proclamation No. 126)
# 1941-12-15 24:00 to 1945-11-30 24:00
# (Proclamation No. 789, Proclamation No. 20)
# 1954-04-11 24:00 to 1954-06-04 24:00
# (Proclamation No. 13, Proclamation No. 33)
# 1977-03-27 24:00 to 1977-09-21 24:00
# (Proclamation No. 1629, Proclamation No. 1641)
# 1990-05-21 00:00 to 1990-07-28 24:00
# (National Emergency Memorandum Order No. 17, Executive Order No. 415)
#
# Proclamation No. 104 ... October 30, 1936
# https://www.officialgazette.gov.ph/1936/10/30/proclamation-no-104-s-1936/
# Proclamation No. 126 ... January 15, 1937
# https://www.officialgazette.gov.ph/1937/01/15/proclamation-no-126-s-1937/
# Proclamation No. 789 ... December 13, 1941
# https://www.officialgazette.gov.ph/1941/12/13/proclamation-no-789-s-1941/
# Proclamation No. 20 ... November 11, 1945
# https://www.officialgazette.gov.ph/1945/11/11/proclamation-no-20-s-1945/
# Proclamation No. 13 ... April 6, 1954
# https://www.officialgazette.gov.ph/1954/04/06/proclamation-no-13-s-1954/
# Proclamation No. 33 ... June 3, 1954
# https://www.officialgazette.gov.ph/1954/06/03/proclamation-no-33-s-1954/
# Proclamation No. 1629 ... March 25, 1977
# https://www.officialgazette.gov.ph/1977/03/25/proclamation-no-1629-s-1977/
# Proclamation No. 1641 ...May 26, 1977
# https://www.officialgazette.gov.ph/1977/05/26/proclamation-no-1641-s-1977/
# National Emergency Memorandum Order No. 17 ... May 2, 1990
# https://www.officialgazette.gov.ph/1990/05/02/national-emergency-memorandum-order-no-17-s-1990/
# Executive Order No. 415 ... July 20, 1990
# https://www.officialgazette.gov.ph/1990/07/20/executive-order-no-415-s-1990/
#
# During WWII, Proclamation No. 789 fixed two periods of DST. The first period
# was set to continue only until January 31, 1942. But Manila was occupied by
# the Japanese earlier in the month....
#
# For the date of the adoption of standard time, Shank[s] gives 1899-05-11.
# The article is not able to state the basis of that. I guess it was based on
# a US War Department Circular issued on that date.
# https://books.google.com/books?id=JZ1PAAAAYAAJ&pg=RA3-PA8
#
# However, according to other sources, standard time was adopted on
# 1899-09-06. Also, the LMT was GMT+8:03:52
# https://books.google.com/books?id=MOYIAQAAIAAJ&pg=PA521
# https://books.google.com/books?id=lSnqqatpYikC&pg=PA21
#
# From Paul Eggert (2024-09-05):
# The penultimate URL in P Chan's email refers to page 521 of
# Selga M, The Time Service in the Philippines.
# Proc Pan-Pacific Science Congress. Vol. 1 (1923), 519-532.
# It says, "The change from the meridian 120° 58' 04" to the 120th implied a
# change of 3 min. 52s.26 in time; consequently on 6th September, 1899,
# Manila Observatory gave the noon signal 3 min. 52s.26 later than before".
#
# Wikipedia says the US declared Manila liberated on March 4, 1945;
# this doesn't affect clocks, just our time zone abbreviation and DST flag.
# From Paul Goyette (2018-06-15) with URLs updated by Guy Harris (2024-02-15):
# In the Philippines, there is a national law, Republic Act No. 10535
# which declares the official time here as "Philippine Standard Time".
# The act [1] even specifies use of PST as the abbreviation, although
# the FAQ provided by PAGASA [2] uses the "acronym PhST to distinguish
# it from the Pacific Standard Time (PST)."
# [1] https://www.officialgazette.gov.ph/2013/05/15/republic-act-no-10535/
# [2] https://prsd.pagasa.dost.gov.ph/index.php/28-astronomy/302-philippine-standard-time
#
# From Paul Eggert (2018-06-19):
# I surveyed recent news reports, and my impression is that "PST" is
# more popular among reliable English-language news sources. This is
# not just a measure of Google hit counts: it's also the sizes and
# influence of the sources. There is no current abbreviation for DST,
# so use "PDT", the usual American style.
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Phil 1936 only - Oct 31 24:00 1:00 D
Rule Phil 1937 only - Jan 15 24:00 0 S
Rule Phil 1941 only - Dec 15 24:00 1:00 D
# The following three rules were canceled by Japan:
#Rule Phil 1942 only - Jan 31 24:00 0 S
#Rule Phil 1942 only - Mar 1 0:00 1:00 D
#Rule Phil 1942 only - Jun 30 24:00 0 S
Rule Phil 1945 only - Nov 30 24:00 0 S
Rule Phil 1954 only - Apr 11 24:00 1:00 D
Rule Phil 1954 only - Jun 4 24:00 0 S
Rule Phil 1977 only - Mar 27 24:00 1:00 D
Rule Phil 1977 only - Sep 21 24:00 0 S
Rule Phil 1990 only - May 21 0:00 1:00 D
Rule Phil 1990 only - Jul 28 24:00 0 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Manila -15:56:08 - LMT 1844 Dec 31
8:03:52 - LMT 1899 Sep 6 4:00u
8:00 Phil P%sT 1942 Feb 11 24:00
9:00 - JST 1945 Mar 4
8:00 Phil P%sT
# Qatar
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha
4:00 - %z 1972 Jun
3:00 - %z
# Saudi Arabia
#
# Japan's year-round bases in Antarctica match this since 1970.
#
# From Paul Eggert (2018-08-29):
# Time in Saudi Arabia and other countries in the Arabian peninsula was not
# standardized until 1968 or so; we don't know exactly when, and possibly it
# has never been made official. Richard P Hunt, in "Islam city yielding to
# modern times", New York Times (1961-04-09), p 20, wrote that only airlines
# observed standard time, and that people in Jeddah mostly observed quasi-solar
# time, doing so by setting their watches at sunrise to 6 o'clock (or to 12
# o'clock for "Arab" time).
#
# Timekeeping differed depending on who you were and which part of Saudi
# Arabia you were in. In 1969, Elias Antar wrote that although a common
# practice had been to set one's watch to 12:00 (i.e., midnight) at sunset -
# which meant that the time on one side of a mountain could differ greatly from
# the time on the other side - many foreigners set their watches to 6pm
# instead, while airlines instead used UTC +03 (except in Dhahran, where they
# used UTC +04), Aramco used UTC +03 with DST, and the Trans-Arabian Pipe Line
# Company used Aramco time in eastern Saudi Arabia and airline time in western.
# (The American Military Aid Advisory Group used plain UTC.) Antar writes,
# "A man named Higgins, so the story goes, used to run a local power
# station. One day, the whole thing became too much for Higgins and he
# assembled his staff and laid down the law. 'I've had enough of this,' he
# shrieked. 'It is now 12 o'clock Higgins Time, and from now on this station is
# going to run on Higgins Time.' And so, until last year, it did." See:
# Antar E. Dinner at When? Saudi Aramco World, 1969 March/April. 2-3.
# http://archive.aramcoworld.com/issue/196902/dinner.at.when.htm
# Also see: Antar EN. Arabian flying is confusing.
# Port Angeles (WA) Evening News. 1965-03-10. page 3.
#
# The TZ database cannot represent quasi-solar time; airline time is the best
# we can do. The 1946 foreign air news digest of the U.S. Civil Aeronautics
# Board (OCLC 42299995) reported that the "... Arabian Government, inaugurated
# a weekly Dhahran-Cairo service, via the Saudi Arabian cities of Riyadh and
# Jidda, on March 14, 1947". Shanks & Pottenger guessed 1950; go with the
# earlier date.
#
# Shanks & Pottenger also state that until 1968-05-01 Saudi Arabia had two
# time zones; the other zone, at UT +04, was in the far eastern part of
# the country. Presumably this is documenting airline time. Ignore this,
# as it's before our 1970 cutoff.
#
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Riyadh 3:06:52 - LMT 1947 Mar 14
3:00 - %z
# Singapore
# taken from Mok Ly Yng (2003-10-30)
# https://web.archive.org/web/20190822231045/http://www.math.nus.edu.sg/~mathelmr/teaching/timezone.html
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1
6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
7:00 - %z 1933 Jan 1
7:00 0:20 %z 1936 Jan 1
7:20 - %z 1941 Sep 1
7:30 - %z 1942 Feb 16
9:00 - %z 1945 Sep 12
7:30 - %z 1981 Dec 31 16:00u
8:00 - %z
# Spratly Is
# no information
# Sri Lanka
# From Paul Eggert (2013-02-21):
# Milne says "Madras mean time use from May 1, 1898. Prior to this Colombo
# mean time, 5h. 4m. 21.9s. F., was used." But 5:04:21.9 differs considerably
# from Colombo's meridian 5:19:24, so for now ignore Milne and stick with
# Shanks and Pottenger.
# From Paul Eggert (1996-09-03):
# "Sri Lanka advances clock by an hour to avoid blackout"
# (, 1996-05-24,
# no longer available as of 1999-08-17)
# reported "the country's standard time will be put forward by one hour at
# midnight Friday (1830 GMT) 'in the light of the present power crisis'."
#
# From Dharmasiri Senanayake, Sri Lanka Media Minister (1996-10-24), as quoted
# by Shamindra in Daily News - Hot News Section
# (1996-10-26):
# With effect from 12.30 a.m. on 26th October 1996
# Sri Lanka will be six (06) hours ahead of GMT.
# From Jesper Nørgaard Welen (2006-04-14), quoting Sri Lanka News Online
# (2006-04-13):
# 0030 hrs on April 15, 2006 (midnight of April 14, 2006 +30 minutes)
# at present, become 2400 hours of April 14, 2006 (midnight of April 14, 2006).
# From Peter Apps and Ranga Sirila of Reuters (2006-04-12) in:
# http://today.reuters.co.uk/news/newsArticle.aspx?type=scienceNews&storyID=2006-04-12T172228Z_01_COL295762_RTRIDST_0_SCIENCE-SRILANKA-TIME-DC.XML
# [The Tamil Tigers] never accepted the original 1996 time change and simply
# kept their clocks set five and a half hours ahead of Greenwich Mean
# Time (GMT), in line with neighbor India.
# From Paul Eggert (2006-04-18):
# People who live in regions under Tamil control can use [TZ='Asia/Kolkata'],
# as that zone has agreed with the Tamil areas since our cutoff date of 1970.
# From Sadika Sumanapala (2016-10-19):
# According to http://www.sltime.org (maintained by Measurement Units,
# Standards & Services Department, Sri Lanka) abbreviation for Sri Lanka
# standard time is SLST.
#
# From Paul Eggert (2016-10-18):
# "SLST" seems to be reasonably recent and rarely used outside time
# zone nerd sources. I searched Google News and found three uses of
# it in the International Business Times of India in February and
# March of this year when discussing cricket match times, but nothing
# since then (though there has been a lot of cricket) and nothing in
# other English-language news sources. Our old abbreviation "LKT" is
# even worse. For now, let's use a numeric abbreviation; we can
# switch to "SLST" if it catches on.
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Colombo 5:19:24 - LMT 1880
5:19:32 - MMT 1906 # Moratuwa Mean Time
5:30 - %z 1942 Jan 5
5:30 0:30 %z 1942 Sep
5:30 1:00 %z 1945 Oct 16 2:00
5:30 - %z 1996 May 25 0:00
6:30 - %z 1996 Oct 26 0:30
6:00 - %z 2006 Apr 15 0:30
5:30 - %z
# Syria
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Syria 1920 1923 - Apr Sun>=15 2:00 1:00 S
Rule Syria 1920 1923 - Oct Sun>=1 2:00 0 -
Rule Syria 1962 only - Apr 29 2:00 1:00 S
Rule Syria 1962 only - Oct 1 2:00 0 -
Rule Syria 1963 1965 - May 1 2:00 1:00 S
Rule Syria 1963 only - Sep 30 2:00 0 -
Rule Syria 1964 only - Oct 1 2:00 0 -
Rule Syria 1965 only - Sep 30 2:00 0 -
Rule Syria 1966 only - Apr 24 2:00 1:00 S
Rule Syria 1966 1976 - Oct 1 2:00 0 -
Rule Syria 1967 1978 - May 1 2:00 1:00 S
Rule Syria 1977 1978 - Sep 1 2:00 0 -
Rule Syria 1983 1984 - Apr 9 2:00 1:00 S
Rule Syria 1983 1984 - Oct 1 2:00 0 -
Rule Syria 1986 only - Feb 16 2:00 1:00 S
Rule Syria 1986 only - Oct 9 2:00 0 -
Rule Syria 1987 only - Mar 1 2:00 1:00 S
Rule Syria 1987 1988 - Oct 31 2:00 0 -
Rule Syria 1988 only - Mar 15 2:00 1:00 S
Rule Syria 1989 only - Mar 31 2:00 1:00 S
Rule Syria 1989 only - Oct 1 2:00 0 -
Rule Syria 1990 only - Apr 1 2:00 1:00 S
Rule Syria 1990 only - Sep 30 2:00 0 -
Rule Syria 1991 only - Apr 1 0:00 1:00 S
Rule Syria 1991 1992 - Oct 1 0:00 0 -
Rule Syria 1992 only - Apr 8 0:00 1:00 S
Rule Syria 1993 only - Mar 26 0:00 1:00 S
Rule Syria 1993 only - Sep 25 0:00 0 -
# IATA SSIM (1998-02) says 1998-04-02;
# (1998-09) says 1999-03-29 and 1999-09-29; (1999-02) says 1999-04-02,
# 2000-04-02, and 2001-04-02; (1999-09) says 2000-03-31 and 2001-03-31;
# (2006) says 2006-03-31 and 2006-09-22;
# for now ignore all these claims and go with Shanks & Pottenger,
# except for the 2006-09-22 claim (which seems right for Ramadan).
Rule Syria 1994 1996 - Apr 1 0:00 1:00 S
Rule Syria 1994 2005 - Oct 1 0:00 0 -
Rule Syria 1997 1998 - Mar lastMon 0:00 1:00 S
Rule Syria 1999 2006 - Apr 1 0:00 1:00 S
# From Stephen Colebourne (2006-09-18):
# According to IATA data, Syria will change DST on 21st September [21:00 UTC]
# this year [only].... This is probably related to Ramadan, like Egypt.
Rule Syria 2006 only - Sep 22 0:00 0 -
# From Paul Eggert (2007-03-29):
# Today the AP reported "Syria will switch to summertime at midnight Thursday."
# http://www.iht.com/articles/ap/2007/03/29/africa/ME-GEN-Syria-Time-Change.php
Rule Syria 2007 only - Mar lastFri 0:00 1:00 S
# From Jesper Nørgaard (2007-10-27):
# The sister center ICARDA of my work CIMMYT is confirming that Syria DST will
# not take place 1st November at 0:00 o'clock but 1st November at 24:00 or
# rather Midnight between Thursday and Friday. This does make more sense than
# having it between Wednesday and Thursday (two workdays in Syria) since the
# weekend in Syria is not Saturday and Sunday, but Friday and Saturday. So now
# it is implemented at midnight of the last workday before weekend...
#
# From Steffen Thorsen (2007-10-27):
# Jesper Nørgaard Welen wrote:
#
# > "Winter local time in Syria will be observed at midnight of Thursday 1
# > November 2007, and the clock will be put back 1 hour."
#
# I found confirmation on this in this gov.sy-article (Arabic):
# http://wehda.alwehda.gov.sy/_print_veiw.asp?FileName=12521710520070926111247
#
# which using Google's translate tools says:
# Council of Ministers also approved the commencement of work on
# identifying the winter time as of Friday, 2/11/2007 where the 60th
# minute delay at midnight Thursday 1/11/2007.
Rule Syria 2007 only - Nov Fri>=1 0:00 0 -
# From Stephen Colebourne (2008-03-17):
# For everyone's info, I saw an IATA time zone change for [Syria] for
# this month (March 2008) in the last day or so....
# Country Time Standard --- DST Start --- --- DST End --- DST
# Name Zone Variation Time Date Time Date
# Variation
# Syrian Arab
# Republic SY +0200 2200 03APR08 2100 30SEP08 +0300
# 2200 02APR09 2100 30SEP09 +0300
# 2200 01APR10 2100 30SEP10 +0300
# From Arthur David Olson (2008-03-17):
# Here's a link to English-language coverage by the Syrian Arab News
# Agency (SANA)...
# http://www.sana.sy/eng/21/2008/03/11/165173.htm
# ...which reads (in part) "The Cabinet approved the suggestion of the
# Ministry of Electricity to begin daylight savings time on Friday April
# 4th, advancing clocks one hour ahead on midnight of Thursday April 3rd."
# Since Syria is two hours east of UTC, the 2200 and 2100 transition times
# shown above match up with midnight in Syria.
# From Arthur David Olson (2008-03-18):
# My best guess at a Syrian rule is "the Friday nearest April 1";
# coding that involves either using a "Mar Fri>=29" construct that old time zone
# compilers can't handle or having multiple Rules (a la Israel).
# For now, use "Apr Fri>=1", and go with IATA on a uniform Sep 30 end.
# From Steffen Thorsen (2008-10-07):
# Syria has now officially decided to end DST on 2008-11-01 this year,
# according to the following article in the Syrian Arab News Agency (SANA).
#
# The article is in Arabic, and seems to tell that they will go back to
# winter time on 2008-11-01 at 00:00 local daylight time (delaying/setting
# clocks back 60 minutes).
#
# http://sana.sy/ara/2/2008/10/07/195459.htm
# From Steffen Thorsen (2009-03-19):
# Syria will start DST on 2009-03-27 00:00 this year according to many sources,
# two examples:
#
# http://www.sana.sy/eng/21/2009/03/17/217563.htm
# (English, Syrian Arab News # Agency)
# http://thawra.alwehda.gov.sy/_View_news2.asp?FileName=94459258720090318012209
# (Arabic, gov-site)
#
# We have not found any sources saying anything about when DST ends this year.
#
# Our summary
# https://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html
# From Steffen Thorsen (2009-10-27):
# The Syrian Arab News Network on 2009-09-29 reported that Syria will
# revert back to winter (standard) time on midnight between Thursday
# 2009-10-29 and Friday 2009-10-30:
# http://www.sana.sy/ara/2/2009/09/29/247012.htm (Arabic)
# From Arthur David Olson (2009-10-28):
# We'll see if future DST switching times turn out to be end of the last
# Thursday of the month or the start of the last Friday of the month or
# something else. For now, use the start of the last Friday.
# From Steffen Thorsen (2010-03-17):
# The "Syrian News Station" reported on 2010-03-16 that the Council of
# Ministers has decided that Syria will start DST on midnight Thursday
# 2010-04-01: (midnight between Thursday and Friday):
# http://sns.sy/sns/?path=news/read/11421 (Arabic)
# From Steffen Thorsen (2012-03-26):
# Today, Syria's government announced that they will start DST early on Friday
# (00:00). This is a bit earlier than the past two years.
#
# From Syrian Arab News Agency, in Arabic:
# http://www.sana.sy/ara/2/2012/03/26/408215.htm
#
# Our brief summary:
# https://www.timeanddate.com/news/time/syria-dst-2012.html
# From Steffen Thorsen (2022-10-05):
# Syria is adopting year-round DST, starting this autumn....
# From https://www.enabbaladi.net/archives/607812
# "This [the decision] came after the weekly government meeting today,
# Tuesday 4 October ..."
#
# From Paul Eggert (2022-10-05):
# Like Jordan, model this as a transition from EEST +03 (DST) to plain +03
# (non-DST) at the point where DST would otherwise have ended.
Rule Syria 2008 only - Apr Fri>=1 0:00 1:00 S
Rule Syria 2008 only - Nov 1 0:00 0 -
Rule Syria 2009 only - Mar lastFri 0:00 1:00 S
Rule Syria 2010 2011 - Apr Fri>=1 0:00 1:00 S
Rule Syria 2012 2022 - Mar lastFri 0:00 1:00 S
Rule Syria 2009 2022 - Oct lastFri 0:00 0 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq
2:00 Syria EE%sT 2022 Oct 28 0:00
3:00 - %z
# Tajikistan
# From Shanks & Pottenger.
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00s
5:00 1:00 %z 1991 Sep 9 2:00s
5:00 - %z
# Thailand
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Bangkok 6:42:04 - LMT 1880
6:42:04 - BMT 1920 Apr # Bangkok Mean Time
7:00 - %z
# Turkmenistan
# From Shanks & Pottenger.
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Ashgabat 3:53:32 - LMT 1924 May 2 # or Ashkhabad
4:00 - %z 1930 Jun 21
5:00 RussiaAsia %z 1991 Mar 31 2:00
4:00 RussiaAsia %z 1992 Jan 19 2:00
5:00 - %z
# United Arab Emirates
#
# The Crozet Is also observe Réunion time; see the 'antarctica' file.
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Dubai 3:41:12 - LMT 1920
4:00 - %z
# Uzbekistan
# Byalokoz 1919 says Uzbekistan was 4:27:53.
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Samarkand 4:27:53 - LMT 1924 May 2
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1992
5:00 - %z
# Milne says Tashkent was 4:37:10.8.
#STDOFF 4:37:10.8
Zone Asia/Tashkent 4:37:11 - LMT 1924 May 2
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00
5:00 RussiaAsia %z 1992
5:00 - %z
# Vietnam (southern)
# From Paul Eggert (2014-10-04):
# Milne gives 7:16:56 for the meridian of Saigon in 1899, as being
# used in Lower Laos, Cambodia, and Annam. But this is quite a ways
# from Saigon's location. For now, ignore this and stick with Shanks
# and Pottenger for LMT before 1906.
# From Arthur David Olson (2008-03-18):
# The English-language name of Vietnam's most populous city is "Ho Chi Minh
# City"; use Ho_Chi_Minh below to avoid a name of more than 14 characters.
# From Paul Eggert (2024-01-14) after a 2014 heads-up from Trần Ngọc Quân
# and a 2024-01-14 heads-up from Đoàn Trần Công Danh:
# Trần Tiến Bình's authoritative book "Lịch Việt Nam: thế kỷ XX-XXI (1901-2100)"
# (Nhà xuất bản Văn Hoá - Thông Tin, Hanoi, 2005), pp 49-50,
# is quoted verbatim in:
# http://www.thoigian.com.vn/?mPage=P80D01
# is translated by Brian Inglis in:
# https://mm.icann.org/pipermail/tz/2014-October/021654.html
# and is the basis for the information below.
#
# The 1906 transition was effective July 1 and standardized Indochina to
# Phù Liễn Observatory, legally 104° 17' 17" east of Paris.
# It's unclear whether this meant legal Paris Mean Time (00:09:21) or
# the Paris Meridian; for now guess the former and round the exact
# 07:06:30.1333... to 07:06:30.13 as the legal spec used 66 2/3 ms precision.
# which is used below even though the modern-day Phù Liễn Observatory
# is closer to 07:06:31. Abbreviate Phù Liễn Mean Time as PLMT.
#
# The following transitions occurred in Indochina in general (before 1954)
# and in South Vietnam in particular (after 1954):
# To 07:00 on 1911-05-01.
# To 08:00 on 1942-12-31 at 23:00.
# To 09:00 on 1945-03-14 at 23:00.
# To 07:00 on 1945-09-02 in Vietnam.
# To 08:00 on 1947-04-01 in French-controlled Indochina.
# To 07:00 on 1955-07-01 in South Vietnam.
# To 08:00 on 1959-12-31 at 23:00 in South Vietnam.
# To 07:00 on 1975-06-13 in South Vietnam.
#
# Trần cites the following sources; it's unclear which supplied the info above.
#
# Hoàng Xuân Hãn: "Lịch và lịch Việt Nam". Tập san Khoa học Xã hội,
# No. 9, Paris, February 1982.
#
# Lê Thành Lân: "Lịch và niên biểu lịch sử hai mươi thế kỷ (0001-2010)",
# NXB Thống kê, Hanoi, 2000.
#
# Lê Thành Lân: "Lịch hai thế kỷ (1802-2010) và các lịch vĩnh cửu",
# NXB Thuận Hoá, Huế, 1995.
#
# Here is the decision for the September 1945 transition:
# Võ Nguyên Giáp, Việt Nam Dân Quốc Công Báo, No. 1 (1945-09-29), page 13
# http://baochi.nlv.gov.vn/baochi/cgi-bin/baochi?a=d&d=JwvzO19450929.2.5&dliv=none
# It says that on 1945-09-01 at 24:00, Vietnam moved back two hours, to +07.
# It also mentions a 1945-03-29 decree (by a Japanese Governor-General)
# to set the time zone to +09, but does not say whether that decree
# merely legalized an earlier change to +09.
#
# July 1955 transition:
# Ngô Đình Diệm, Công Báo Việt Nam, No. 92 (1955-07-02), page 1780-1781
# Ordinance (Dụ) No. 46 (1955-06-25)
# http://ddsnext.crl.edu/titles/32341#?c=0&m=29&s=0&cv=4&r=0&xywh=-89%2C342%2C1724%2C1216
# It says that on 1955-07-01 at 01:00, South Vietnam moved back 1 hour (to +07).
#
# December 1959 transition:
# Ngô Đình Diệm, Công Báo Việt Nam Cộng Hòa, 1960 part 1 (1960-01-02), page 62
# Decree (Sắc lệnh) No. 362-TTP (1959-12-30)
# http://ddsnext.crl.edu/titles/32341#?c=0&m=138&s=0&cv=793&r=0&xywh=-54%2C1504%2C1705%2C1202
# It says that on 1959-12-31 at 23:00, South Vietnam moved forward 1 hour (to +08).
# Zone NAME STDOFF RULES FORMAT [UNTIL]
#STDOFF 7:06:30.13
Zone Asia/Ho_Chi_Minh 7:06:30 - LMT 1906 Jul 1
7:06:30 - PLMT 1911 May 1 # Phù Liễn MT
7:00 - %z 1942 Dec 31 23:00
8:00 - %z 1945 Mar 14 23:00
9:00 - %z 1945 Sep 1 24:00
7:00 - %z 1947 Apr 1
8:00 - %z 1955 Jul 1 01:00
7:00 - %z 1959 Dec 31 23:00
8:00 - %z 1975 Jun 13
7:00 - %z
# From Paul Eggert (2019-02-19):
#
# The Ho Chi Minh entry suffices for most purposes as it agrees with all of
# Vietnam since 1975-06-13. Presumably clocks often changed in south Vietnam
# in the early 1970s as locations changed hands during the war; however the
# details are unknown and would likely be too voluminous for this database.
#
# For timestamps in north Vietnam back to 1970 (the tzdb cutoff),
# use Asia/Bangkok; see the VN entries in the file zone1970.tab.
# For timestamps before 1970, see Asia/Hanoi in the file 'backzone'.
# Yemen
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Aden 2:59:54 - LMT 1950
3:00 - +03
@
1.15
log
@Merge tzdata2025b
@
text
@d7 3
a9 3
# go ahead and edit the file (and please send any changes to
# tz@@iana.org for general use in the future). For more, please see
# the file CONTRIBUTING in the tz distribution.
@
1.15.2.1
log
@Pull up the following, requested by kre in ticket #215:
external/public-domain/tz/dist/CONTRIBUTING up to 1.1.1.10
external/public-domain/tz/dist/Makefile up to 1.5
external/public-domain/tz/dist/NEWS up to 1.6
external/public-domain/tz/dist/README up to 1.3
external/public-domain/tz/dist/SECURITY up to 1.1.1.2
external/public-domain/tz/dist/TZDATA_VERSION up to 1.44
external/public-domain/tz/dist/africa up to 1.3
external/public-domain/tz/dist/antarctica up to 1.4
external/public-domain/tz/dist/asia up to 1.16
external/public-domain/tz/dist/australasia up to 1.12
external/public-domain/tz/dist/backzone up to 1.4
external/public-domain/tz/dist/calendars up to 1.1.1.3
external/public-domain/tz/dist/checknow.awk up to 1.4
external/public-domain/tz/dist/etcetera up to 1.4
external/public-domain/tz/dist/europe up to 1.5
external/public-domain/tz/dist/iso3166.tab up to 1.1.1.10
external/public-domain/tz/dist/leap-seconds.list up to 1.11
external/public-domain/tz/dist/leapseconds up to 1.11
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.15
external/public-domain/tz/dist/northamerica up to 1.5
external/public-domain/tz/dist/southamerica up to 1.5
external/public-domain/tz/dist/theory.html up to 1.5
external/public-domain/tz/dist/version up to 1.17
external/public-domain/tz/dist/zone1970.tab up to 1.5
external/public-domain/tz/dist/zonenow.tab up to 1.6
doc/3RDPARTY (apply patch)
Import tzdata 2026a (using the 2026agtz data).
@
text
@d7 3
a9 3
# go ahead and edit the file, and please send any changes to
# the public mailing list tz@@iana.org for general use in the future.
# For more, please see the file CONTRIBUTING in the tz distribution.
@
1.14
log
@Really update tzdata to 2025a (via 2025atgz as usual).
The TZDATA2025ATGZ tagged vendor version in the repository is
correct (contains this same data), but the files in HEAD are not.
This fixes that problem.
The couple of meaningful changes reported in the vendor import
are actually made effective here, the rest of these updates are
just to comments, or to files that are part of the tzdata distribution
but are not used by NetBSD, except the expiry date on the leapseconds
file(s) has been moved forward from late June (2025) to late December
(as usually happens in the first tzdata update after each new 6-monthly
IERS leap second bulletin, but is almost never mentioned).
I am going to alter the way the tzdata2netbsd script works in a way
that I am hoping will avoid this kind of issue (as well as previous
partial updates that happened a few years back) - but there's no
reasonable way for me to test whether that will work until the next
tzdata update happens.
@
text
@d1524 10
d1661 1
a1661 1
4:00 Iran %z 1979
@
1.13
log
@Merge tzdata2024b
@
text
@a3717 1
# The rest of the data entries are from Shanks & Pottenger.
d3719 63
a3781 13
# From Jesper Nørgaard Welen (2006-04-26):
# ... claims that Philippines had DST last time in 1990:
# http://story.philippinetimes.com/p.x/ct/9/id/145be20cc6b121c0/cid/3e5bbccc730d258c/
# [a story dated 2006-04-25 by Cris Larano of Dow Jones Newswires,
# but no details]
# From Paul Eggert (2014-08-14):
# The following source says DST may be instituted November-January and again
# March-June, but this is not definite. It also says DST was last proclaimed
# during the Ramos administration (1992-1998); but again, no details.
# Carcamo D. PNoy urged to declare use of daylight saving time.
# Philippine Star 2014-08-05
# http://www.philstar.com/headlines/2014/08/05/1354152/pnoy-urged-declare-use-daylight-saving-time
a3798 6
# From P Chan (2021-05-10):
# Here's a fairly comprehensive article in Japanese:
# https://wiki.suikawiki.org/n/Philippine%20Time
# From Paul Eggert (2021-05-10):
# The info in the Japanese table has not been absorbed (yet) below.
d3800 19
a3818 11
Rule Phil 1936 only - Nov 1 0:00 1:00 D
Rule Phil 1937 only - Feb 1 0:00 0 S
Rule Phil 1954 only - Apr 12 0:00 1:00 D
Rule Phil 1954 only - Jul 1 0:00 0 S
Rule Phil 1978 only - Mar 22 0:00 1:00 D
Rule Phil 1978 only - Sep 21 0:00 0 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31
8:04:00 - LMT 1899 May 11
8:00 Phil P%sT 1942 May
9:00 - JST 1944 Nov
@
1.12
log
@
Complete tzdata2024a update (using tzdata2024agtz) by fixing files that
the script manages to forget to handle.
@
text
@d86 2
a87 2
4:00 - +04 1945
4:30 - +0430
d119 6
a124 6
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1995 Sep 24 2:00s
4:00 - +04 1997
4:00 RussiaAsia +04/+05 2011
4:00 Armenia +04/+05
d145 6
a150 6
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1992 Sep lastSun 2:00s
4:00 - +04 1996
4:00 EUAsia +04/+05 1997
4:00 Azer +04/+05
d238 5
a242 5
6:30 - +0630 1942 May 15
5:30 - +0530 1942 Sep
6:30 - +0630 1951 Sep 30
6:00 - +06 2009
6:00 Dhaka +06/+07
d247 2
a248 2
5:30 - +0530 1987 Oct
6:00 - +06
d258 2
a259 2
5:00 - +05 1996
6:00 - +06
d280 3
a282 3
6:30 - +0630 1942 May
9:00 - +09 1945 May 3
6:30 - +0630
d680 1
a680 1
6:00 - +06
d1138 1
a1138 1
9:00 Macau +09/+10 1945 Sep 30 24:00
d1181 1
a1181 1
3:00 - +03 2017 Oct 29 1:00u
d1222 9
a1230 9
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1992
3:00 E-EurAsia +03/+04 1994 Sep lastSun
4:00 E-EurAsia +04/+05 1996 Oct lastSun
4:00 1:00 +05 1997 Mar lastSun
4:00 E-EurAsia +04/+05 2004 Jun 27
3:00 RussiaAsia +03/+04 2005 Mar lastSun 2:00
4:00 - +04
d1234 7
d1264 5
a1268 5
Zone Asia/Dili 8:22:20 - LMT 1912 Jan 1
8:00 - +08 1942 Feb 21 23:00
9:00 - +09 1976 May 3
8:00 - +08 2000 Sep 17 0:00
9:00 - +09
d1334 1
a1334 1
5:30 1:00 +0630 1942 May 15
d1336 1
a1336 1
5:30 1:00 +0630 1945 Oct 15
d1388 6
a1393 6
7:20 - +0720 1932 Nov
7:30 - +0730 1942 Mar 23
9:00 - +09 1945 Sep 23
7:30 - +0730 1948 May
8:00 - +08 1950 May
7:30 - +0730 1964
d1398 5
a1402 5
7:30 - +0730 1942 Jan 29
9:00 - +09 1945 Sep 23
7:30 - +0730 1948 May
8:00 - +08 1950 May
7:30 - +0730 1964
d1408 2
a1409 2
8:00 - +08 1942 Feb 9
9:00 - +09 1945 Sep 23
d1413 2
a1414 2
9:00 - +09 1944 Sep 1
9:30 - +0930 1964
d1650 3
a1652 3
3:30 Iran +0330/+0430 1977 Oct 20 24:00
4:00 Iran +04/+05 1979
3:30 Iran +0330/+0430
d1695 2
a1696 2
3:00 - +03 1982 May
3:00 Iraq +03/+04
d2293 1
a2293 1
3:00 - +03
d2504 1
a2504 1
# East Kazkhstan (KZ-63), Jambyl/Zhambyl (KZ-31), Jetisu/Zhetysu (KZ-33),
d2506 1
a2506 1
# Shyumkent city (KZ-79), Turkistan (KZ-61), and Ulytau (KZ-62).
d2508 6
a2513 6
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s
6:00 RussiaAsia +06/+07 2004 Oct 31 2:00s
6:00 - +06 2024 Mar 1 0:00
5:00 - +05
d2516 11
a2526 11
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1991 Sep 29 2:00s
5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s
6:00 RussiaAsia +06/+07 1992 Mar 29 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
6:00 - +06 2018 Dec 21 0:00
5:00 - +05
d2531 9
a2539 9
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
6:00 - +06 2024 Mar 1 0:00
5:00 - +05
d2542 8
a2549 8
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
5:00 - +05
d2554 8
a2561 8
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 1994 Sep 25 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
d2565 8
a2572 8
3:00 - +03 1930 Jun 21
5:00 - +05 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 1999 Mar 28 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
d2577 9
a2585 9
3:00 - +03 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1989 Mar 26 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 1992 Mar 29 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
d2606 5
a2610 5
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 RussiaAsia +05/+06 1991 Aug 31 2:00
5:00 Kyrgyz +05/+06 2005 Aug 12
6:00 - +06
d2841 4
a2844 4
7:30 - +0730 1933
8:00 NBorneo +08/+0820 1942 Feb 16
9:00 - +09 1945 Sep 12
8:00 - +08
d2850 1
a2850 1
5:00 - +05
d2952 31
a2982 3
# XXX--in the absence of better information, assume that transition
# was at the start of 2008-03-31 (the day of Steffen Thorsen's report);
# this is almost surely wrong.
d3021 2
a3022 2
6:00 - +06 1978
7:00 Mongol +07/+08
d3025 2
a3026 9
7:00 - +07 1978
8:00 Mongol +08/+09
# Choibalsan, a.k.a. Bajan Tümen, Bajan Tumen, Chojbalsan,
# Choybalsan, Sanbejse, Tchoibalsan
Zone Asia/Choibalsan 7:38:00 - LMT 1905 Aug
7:00 - +07 1978
8:00 - +08 1983 Apr
9:00 Mongol +09/+10 2008 Mar 31
8:00 Mongol +08/+09
d3031 2
a3032 2
5:30 - +0530 1986
5:45 - +0545
d3183 4
a3186 4
5:30 - +0530 1942 Sep
5:30 1:00 +0630 1945 Oct 15
5:30 - +0530 1951 Sep 30
5:00 - +05 1971 Mar 26
d3734 1
a3734 1
# From Paul Goyette (2018-06-15):
d3740 2
a3741 2
# [1] http://www.officialgazette.gov.ph/2013/05/15/republic-act-no-10535/
# [2] https://www1.pagasa.dost.gov.ph/index.php/astronomy/philippine-standard-time#republic-act-10535
d3773 2
a3774 2
4:00 - +04 1972 Jun
3:00 - +03
d3822 1
a3822 1
3:00 - +03
d3830 7
a3836 7
7:00 - +07 1933 Jan 1
7:00 0:20 +0720 1936 Jan 1
7:20 - +0720 1941 Sep 1
7:30 - +0730 1942 Feb 16
9:00 - +09 1945 Sep 12
7:30 - +0730 1981 Dec 31 16:00u
8:00 - +08
d3894 7
a3900 7
5:30 - +0530 1942 Jan 5
5:30 0:30 +06 1942 Sep
5:30 1:00 +0630 1945 Oct 16 2:00
5:30 - +0530 1996 May 25 0:00
6:30 - +0630 1996 Oct 26 0:30
6:00 - +06 2006 Apr 15 0:30
5:30 - +0530
d4071 1
a4071 1
3:00 - +03
d4077 4
a4080 4
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 1:00 +06 1991 Sep 9 2:00s
5:00 - +05
d4086 1
a4086 1
7:00 - +07
d4092 4
a4095 4
4:00 - +04 1930 Jun 21
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00
5:00 - +05
d4102 1
a4102 1
4:00 - +04
d4108 6
a4113 6
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1992
5:00 - +05
d4117 4
a4120 4
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00
5:00 RussiaAsia +05/+06 1992
5:00 - +05
d4178 1
a4178 1
# It also mentions a 1945-03-29 decree (by a Japanese Goveror-General)
d4199 8
a4206 8
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 1 24:00
7:00 - +07 1947 Apr 1
8:00 - +08 1955 Jul 1 01:00
7:00 - +07 1959 Dec 31 23:00
8:00 - +08 1975 Jun 13
7:00 - +07
@
1.12.2.1
log
@Sync with HEAD
@
text
@d86 2
a87 2
4:00 - %z 1945
4:30 - %z
d119 6
a124 6
3:00 - %z 1957 Mar
4:00 RussiaAsia %z 1991 Mar 31 2:00s
3:00 RussiaAsia %z 1995 Sep 24 2:00s
4:00 - %z 1997
4:00 RussiaAsia %z 2011
4:00 Armenia %z
d145 6
a150 6
3:00 - %z 1957 Mar
4:00 RussiaAsia %z 1991 Mar 31 2:00s
3:00 RussiaAsia %z 1992 Sep lastSun 2:00s
4:00 - %z 1996
4:00 EUAsia %z 1997
4:00 Azer %z
d238 5
a242 5
6:30 - %z 1942 May 15
5:30 - %z 1942 Sep
6:30 - %z 1951 Sep 30
6:00 - %z 2009
6:00 Dhaka %z
d247 2
a248 2
5:30 - %z 1987 Oct
6:00 - %z
d258 2
a259 2
5:00 - %z 1996
6:00 - %z
d280 3
a282 3
6:30 - %z 1942 May
9:00 - %z 1945 May 3
6:30 - %z
d680 1
a680 1
6:00 - %z
d1138 1
a1138 1
9:00 Macau %z 1945 Sep 30 24:00
d1181 1
a1181 1
3:00 - %z 2017 Oct 29 1:00u
d1222 9
a1230 9
3:00 - %z 1957 Mar
4:00 RussiaAsia %z 1991 Mar 31 2:00s
3:00 RussiaAsia %z 1992
3:00 E-EurAsia %z 1994 Sep lastSun
4:00 E-EurAsia %z 1996 Oct lastSun
4:00 1:00 %z 1997 Mar lastSun
4:00 E-EurAsia %z 2004 Jun 27
3:00 RussiaAsia %z 2005 Mar lastSun 2:00
4:00 - %z
a1233 7
# From Tim Parenti (2024-07-01):
# The 1912-01-01 transition occurred at 00:00 new time, per the 1911-05-24
# Portuguese decree (see Europe/Lisbon). A provision in article 5(c) of the
# decree prescribed that Timor "will keep counting time in harmony with
# neighboring foreign colonies, [for] as long as they do not adopt the time
# that belongs to them in [the Washington Convention] system."
d1257 5
a1261 5
Zone Asia/Dili 8:22:20 - LMT 1911 Dec 31 16:00u
8:00 - %z 1942 Feb 21 23:00
9:00 - %z 1976 May 3
8:00 - %z 2000 Sep 17 0:00
9:00 - %z
d1327 1
a1327 1
5:30 1:00 %z 1942 May 15
d1329 1
a1329 1
5:30 1:00 %z 1945 Oct 15
d1381 6
a1386 6
7:20 - %z 1932 Nov
7:30 - %z 1942 Mar 23
9:00 - %z 1945 Sep 23
7:30 - %z 1948 May
8:00 - %z 1950 May
7:30 - %z 1964
d1391 5
a1395 5
7:30 - %z 1942 Jan 29
9:00 - %z 1945 Sep 23
7:30 - %z 1948 May
8:00 - %z 1950 May
7:30 - %z 1964
d1401 2
a1402 2
8:00 - %z 1942 Feb 9
9:00 - %z 1945 Sep 23
d1406 2
a1407 2
9:00 - %z 1944 Sep 1
9:30 - %z 1964
a1516 10
# From Roozbeh Pournader (2025-03-18):
# ... the exact time of Iran's transition from +0400 to +0330 ... was Friday
# 1357/8/19 AP=1978-11-10. Here's a newspaper clip from the Ettela'at
# newspaper, dated 1357/8/14 AP=1978-11-05, translated from Persian
# (at https://w.wiki/DUEY):
# Following the government's decision about returning the official time
# to the previous status, the spokesperson for the Ministry of Energy
# announced today: At the hour 24 of Friday 19th of Aban (=1978-11-10),
# the country's time will be pulled back half an hour.
#
d1643 3
a1645 3
3:30 Iran %z 1977 Oct 20 24:00
4:00 Iran %z 1978 Nov 10 24:00
3:30 Iran %z
d1688 2
a1689 2
3:00 - %z 1982 May
3:00 Iraq %z
d2286 1
a2286 1
3:00 - %z
d2497 1
a2497 1
# East Kazakhstan (KZ-63), Jambyl/Zhambyl (KZ-31), Jetisu/Zhetysu (KZ-33),
d2499 1
a2499 1
# Shymkent city (KZ-79), Turkistan (KZ-61), and Ulytau (KZ-62).
d2501 6
a2506 6
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00s
5:00 RussiaAsia %z 1992 Jan 19 2:00s
6:00 RussiaAsia %z 2004 Oct 31 2:00s
6:00 - %z 2024 Mar 1 0:00
5:00 - %z
d2509 11
a2519 11
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1991 Sep 29 2:00s
5:00 RussiaAsia %z 1992 Jan 19 2:00s
6:00 RussiaAsia %z 1992 Mar 29 2:00s
5:00 RussiaAsia %z 2004 Oct 31 2:00s
6:00 - %z 2018 Dec 21 0:00
5:00 - %z
d2524 9
a2532 9
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 2004 Oct 31 2:00s
6:00 - %z 2024 Mar 1 0:00
5:00 - %z
d2535 8
a2542 8
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
d2547 8
a2554 8
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 1994 Sep 25 2:00s
4:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
d2558 8
a2565 8
3:00 - %z 1930 Jun 21
5:00 - %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 1999 Mar 28 2:00s
4:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
d2570 9
a2578 9
3:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1989 Mar 26 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 1992 Mar 29 2:00s
4:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
d2599 5
a2603 5
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00s
5:00 RussiaAsia %z 1991 Aug 31 2:00
5:00 Kyrgyz %z 2005 Aug 12
6:00 - %z
d2834 4
a2837 4
7:30 - %z 1933
8:00 NBorneo %z 1942 Feb 16
9:00 - %z 1945 Sep 12
8:00 - %z
d2843 1
a2843 1
5:00 - %z
d2945 3
a2947 31
# From Heitor David Pinto (2024-06-23):
# Sources about time zones in Mongolia seem to list one of two conflicting
# configurations. The first configuration, mentioned in a comment to the TZ
# database in 1999, citing a Mongolian government website, lists the provinces
# of Bayan-Ölgii, Khovd and Uvs in UTC+7, and the rest of the country in
# UTC+8. The second configuration, mentioned in a comment to the database in
# 2001, lists Bayan-Ölgii, Khovd, Uvs, Govi-Altai and Zavkhan in UTC+7, Dornod
# and Sükhbaatar in UTC+9, and the rest of the country in UTC+8.
#
# The first configuration is still mentioned by several Mongolian travel
# agencies:
# https://www.adventurerider.mn/en/page/about_mongolia
# http://www.naturetours.mn/nt/mongolia.php
# https://www.newjuulchin.mn/web/content/7506?unique=fa24a0f6e96e022a3578ee5195ac879638c734ce
#
# It also matches these flight schedules in 2013:
# http://web.archive.org/web/20130722023600/https://www.hunnuair.com/en/timetabled
# The flight times imply that the airports of Uliastai (Zavkhan), Choibalsan
# (Dornod) and Altai (Govi-Altai) are in the same time zone as Ulaanbaatar,
# and Khovd is one hour behind....
#
# The second configuration was mentioned by an official of the Mongolian
# standards agency in an interview in 2014: https://ikon.mn/n/9v6
# And it's still listed by the Mongolian aviation agency:
# https://ais.mn/files/aip/eAIP/2023-12-25/html/eSUP/ZM-eSUP-23-04-en-MN.html
#
# ... I believe that the first configuration is what is actually observed in
# Mongolia and has been so all along, at least since 1999. The second
# configuration closely matches the ideal time zone boundaries at 97.5° E and
# 112.5° E but it doesn't seem to be used in practice.
d2986 2
a2987 2
6:00 - %z 1978
7:00 Mongol %z
d2990 9
a2998 2
7:00 - %z 1978
8:00 Mongol %z
d3003 2
a3004 2
5:30 - %z 1986
5:45 - %z
d3155 4
a3158 4
5:30 - %z 1942 Sep
5:30 1:00 %z 1945 Oct 15
5:30 - %z 1951 Sep 30
5:00 - %z 1971 Mar 26
d3690 1
d3692 13
a3704 63
# From P Chan (2021-05-10):
# Here's a fairly comprehensive article in Japanese:
# https://wiki.suikawiki.org/n/Philippine%20Time
# (2021-05-16):
# According to the references listed in the article,
# the periods that the Philippines (Manila) observed DST or used +9 are:
#
# 1936-10-31 24:00 to 1937-01-15 24:00
# (Proclamation No. 104, Proclamation No. 126)
# 1941-12-15 24:00 to 1945-11-30 24:00
# (Proclamation No. 789, Proclamation No. 20)
# 1954-04-11 24:00 to 1954-06-04 24:00
# (Proclamation No. 13, Proclamation No. 33)
# 1977-03-27 24:00 to 1977-09-21 24:00
# (Proclamation No. 1629, Proclamation No. 1641)
# 1990-05-21 00:00 to 1990-07-28 24:00
# (National Emergency Memorandum Order No. 17, Executive Order No. 415)
#
# Proclamation No. 104 ... October 30, 1936
# https://www.officialgazette.gov.ph/1936/10/30/proclamation-no-104-s-1936/
# Proclamation No. 126 ... January 15, 1937
# https://www.officialgazette.gov.ph/1937/01/15/proclamation-no-126-s-1937/
# Proclamation No. 789 ... December 13, 1941
# https://www.officialgazette.gov.ph/1941/12/13/proclamation-no-789-s-1941/
# Proclamation No. 20 ... November 11, 1945
# https://www.officialgazette.gov.ph/1945/11/11/proclamation-no-20-s-1945/
# Proclamation No. 13 ... April 6, 1954
# https://www.officialgazette.gov.ph/1954/04/06/proclamation-no-13-s-1954/
# Proclamation No. 33 ... June 3, 1954
# https://www.officialgazette.gov.ph/1954/06/03/proclamation-no-33-s-1954/
# Proclamation No. 1629 ... March 25, 1977
# https://www.officialgazette.gov.ph/1977/03/25/proclamation-no-1629-s-1977/
# Proclamation No. 1641 ...May 26, 1977
# https://www.officialgazette.gov.ph/1977/05/26/proclamation-no-1641-s-1977/
# National Emergency Memorandum Order No. 17 ... May 2, 1990
# https://www.officialgazette.gov.ph/1990/05/02/national-emergency-memorandum-order-no-17-s-1990/
# Executive Order No. 415 ... July 20, 1990
# https://www.officialgazette.gov.ph/1990/07/20/executive-order-no-415-s-1990/
#
# During WWII, Proclamation No. 789 fixed two periods of DST. The first period
# was set to continue only until January 31, 1942. But Manila was occupied by
# the Japanese earlier in the month....
#
# For the date of the adoption of standard time, Shank[s] gives 1899-05-11.
# The article is not able to state the basis of that. I guess it was based on
# a US War Department Circular issued on that date.
# https://books.google.com/books?id=JZ1PAAAAYAAJ&pg=RA3-PA8
#
# However, according to other sources, standard time was adopted on
# 1899-09-06. Also, the LMT was GMT+8:03:52
# https://books.google.com/books?id=MOYIAQAAIAAJ&pg=PA521
# https://books.google.com/books?id=lSnqqatpYikC&pg=PA21
#
# From Paul Eggert (2024-09-05):
# The penultimate URL in P Chan's email refers to page 521 of
# Selga M, The Time Service in the Philippines.
# Proc Pan-Pacific Science Congress. Vol. 1 (1923), 519-532.
# It says, "The change from the meridian 120° 58' 04" to the 120th implied a
# change of 3 min. 52s.26 in time; consequently on 6th September, 1899,
# Manila Observatory gave the noon signal 3 min. 52s.26 later than before".
#
# Wikipedia says the US declared Manila liberated on March 4, 1945;
# this doesn't affect clocks, just our time zone abbreviation and DST flag.
d3706 1
a3706 1
# From Paul Goyette (2018-06-15) with URLs updated by Guy Harris (2024-02-15):
d3712 2
a3713 2
# [1] https://www.officialgazette.gov.ph/2013/05/15/republic-act-no-10535/
# [2] https://prsd.pagasa.dost.gov.ph/index.php/28-astronomy/302-philippine-standard-time
d3722 6
d3729 11
a3739 19
Rule Phil 1936 only - Oct 31 24:00 1:00 D
Rule Phil 1937 only - Jan 15 24:00 0 S
Rule Phil 1941 only - Dec 15 24:00 1:00 D
# The following three rules were canceled by Japan:
#Rule Phil 1942 only - Jan 31 24:00 0 S
#Rule Phil 1942 only - Mar 1 0:00 1:00 D
#Rule Phil 1942 only - Jun 30 24:00 0 S
Rule Phil 1945 only - Nov 30 24:00 0 S
Rule Phil 1954 only - Apr 11 24:00 1:00 D
Rule Phil 1954 only - Jun 4 24:00 0 S
Rule Phil 1977 only - Mar 27 24:00 1:00 D
Rule Phil 1977 only - Sep 21 24:00 0 S
Rule Phil 1990 only - May 21 0:00 1:00 D
Rule Phil 1990 only - Jul 28 24:00 0 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Manila -15:56:08 - LMT 1844 Dec 31
8:03:52 - LMT 1899 Sep 6 4:00u
8:00 Phil P%sT 1942 Feb 11 24:00
9:00 - JST 1945 Mar 4
d3745 2
a3746 2
4:00 - %z 1972 Jun
3:00 - %z
d3794 1
a3794 1
3:00 - %z
d3802 7
a3808 7
7:00 - %z 1933 Jan 1
7:00 0:20 %z 1936 Jan 1
7:20 - %z 1941 Sep 1
7:30 - %z 1942 Feb 16
9:00 - %z 1945 Sep 12
7:30 - %z 1981 Dec 31 16:00u
8:00 - %z
d3866 7
a3872 7
5:30 - %z 1942 Jan 5
5:30 0:30 %z 1942 Sep
5:30 1:00 %z 1945 Oct 16 2:00
5:30 - %z 1996 May 25 0:00
6:30 - %z 1996 Oct 26 0:30
6:00 - %z 2006 Apr 15 0:30
5:30 - %z
d4043 1
a4043 1
3:00 - %z
d4049 4
a4052 4
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00s
5:00 1:00 %z 1991 Sep 9 2:00s
5:00 - %z
d4058 1
a4058 1
7:00 - %z
d4064 4
a4067 4
4:00 - %z 1930 Jun 21
5:00 RussiaAsia %z 1991 Mar 31 2:00
4:00 RussiaAsia %z 1992 Jan 19 2:00
5:00 - %z
d4074 1
a4074 1
4:00 - %z
d4080 6
a4085 6
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1992
5:00 - %z
d4089 4
a4092 4
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00
5:00 RussiaAsia %z 1992
5:00 - %z
d4150 1
a4150 1
# It also mentions a 1945-03-29 decree (by a Japanese Governor-General)
d4171 8
a4178 8
7:00 - %z 1942 Dec 31 23:00
8:00 - %z 1945 Mar 14 23:00
9:00 - %z 1945 Sep 1 24:00
7:00 - %z 1947 Apr 1
8:00 - %z 1955 Jul 1 01:00
7:00 - %z 1959 Dec 31 23:00
8:00 - %z 1975 Jun 13
7:00 - %z
@
1.11
log
@Merge tzdata2023d
@
text
@d2481 11
d2495 5
a2499 2
# This includes KZ-AKM, KZ-ALA, KZ-ALM, KZ-AST, KZ-BAY, KZ-VOS, KZ-ZHA,
# KZ-KAR, KZ-SEV, KZ-PAV, and KZ-YUZ.
d2505 3
a2507 2
6:00 - +06
# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-KZY)
d2520 1
a2520 2
#
# Qostanay (aka Kostanay, Kustanay) (KZ-KUS)
d2531 3
a2533 3
6:00 - +06
# Aqtöbe (aka Aktobe, formerly Aktyubinsk) (KZ-AKT)
d2543 1
a2543 1
# Mangghystaū (KZ-MAN)
d2555 1
a2555 1
# Atyraū (KZ-ATY) is like Mangghystaū except it switched from
d2566 1
a2566 1
# West Kazakhstan (KZ-ZAP)
d3497 8
a3504 1
# From Paul Eggert (2023-03-22):
d3508 1
a3508 1
# to DST at 02:00 the first Saturday after Ramadan, and that
d3512 1
a3512 1
# 2023 through 2086 by running the following program under GNU Emacs 28.2,
d3516 1
a3516 1
# (let ((islamic-year 1444))
d3525 1
d3576 2
a3577 2
Rule Palestine 2024 only - Apr 13 2:00 1:00 S
Rule Palestine 2025 only - Apr 5 2:00 1:00 S
a3582 2
Rule Palestine 2039 only - Oct 22 2:00 1:00 S
Rule Palestine 2039 2067 - Oct Sat<=30 2:00 0 -
d3584 2
a3585 1
Rule Palestine 2040 only - Oct 13 2:00 1:00 S
d3587 1
a3587 1
Rule Palestine 2041 only - Sep 28 2:00 1:00 S
d3589 1
a3589 1
Rule Palestine 2042 only - Sep 20 2:00 1:00 S
d3591 1
a3591 1
Rule Palestine 2043 only - Sep 12 2:00 1:00 S
d3593 1
a3593 1
Rule Palestine 2044 only - Aug 27 2:00 1:00 S
d3595 1
a3595 1
Rule Palestine 2045 only - Aug 19 2:00 1:00 S
d3597 1
a3597 1
Rule Palestine 2046 only - Aug 11 2:00 1:00 S
d3599 1
a3599 1
Rule Palestine 2047 only - Jul 27 2:00 1:00 S
d3601 1
a3601 1
Rule Palestine 2048 only - Jul 18 2:00 1:00 S
d3603 1
a3603 1
Rule Palestine 2049 only - Jul 3 2:00 1:00 S
d3605 1
a3605 1
Rule Palestine 2050 only - Jun 25 2:00 1:00 S
d3607 1
a3607 1
Rule Palestine 2051 only - Jun 17 2:00 1:00 S
d3609 1
a3609 1
Rule Palestine 2052 only - Jun 1 2:00 1:00 S
d3611 1
a3611 1
Rule Palestine 2053 only - May 24 2:00 1:00 S
d3613 6
a3618 5
Rule Palestine 2054 only - May 16 2:00 1:00 S
Rule Palestine 2055 only - May 1 2:00 1:00 S
Rule Palestine 2056 only - Apr 22 2:00 1:00 S
Rule Palestine 2057 only - Apr 7 2:00 1:00 S
Rule Palestine 2058 max - Mar Sat<=30 2:00 1:00 S
d3624 1
a3624 1
Rule Palestine 2072 only - Oct 15 2:00 1:00 S
d3627 1
a3627 1
Rule Palestine 2073 only - Oct 7 2:00 1:00 S
d3629 1
a3629 1
Rule Palestine 2074 only - Sep 29 2:00 1:00 S
d3631 1
a3631 1
Rule Palestine 2075 only - Sep 14 2:00 1:00 S
d3633 1
a3633 1
Rule Palestine 2076 only - Sep 5 2:00 1:00 S
d3635 1
a3635 1
Rule Palestine 2077 only - Aug 28 2:00 1:00 S
d3637 1
a3637 1
Rule Palestine 2078 only - Aug 13 2:00 1:00 S
d3639 1
a3639 1
Rule Palestine 2079 only - Aug 5 2:00 1:00 S
d3641 1
a3641 1
Rule Palestine 2080 only - Jul 20 2:00 1:00 S
d3643 1
a3643 1
Rule Palestine 2081 only - Jul 12 2:00 1:00 S
d3645 1
a3645 1
Rule Palestine 2082 only - Jul 4 2:00 1:00 S
d3647 1
a3647 1
Rule Palestine 2083 only - Jun 19 2:00 1:00 S
d3649 1
a3649 1
Rule Palestine 2084 only - Jun 10 2:00 1:00 S
d3651 1
a3651 1
Rule Palestine 2085 only - Jun 2 2:00 1:00 S
d3653 1
a3653 1
Rule Palestine 2086 only - May 18 2:00 1:00 S
d3681 1
a3681 1
# From Paul Eggert (2018-11-18):
d3689 1
a3689 1
# https://www.staff.science.uu.nl/~gent0113/idl/idl_philippines.htm
d4106 2
a4107 1
# From Paul Eggert (2022-07-27) after a 2014 heads-up from Trần Ngọc Quân:
d4137 5
a4141 2
# Hoàng Xuân Hãn: "Lịch và lịch Việt Nam". Tập san Khoa học Xã hội,
# No. 9, Paris, February 1982.
d4143 2
a4144 2
# Lê Thành Lân: "Lịch và niên biểu lịch sử hai mươi thế kỷ (0001-2010)",
# NXB Thống kê, Hanoi, 2000.
d4146 20
a4165 2
# Lê Thành Lân: "Lịch hai thế kỷ (1802-2010) và các lịch vĩnh cửu",
# NXB Thuận Hoá, Huế, 1995.
d4173 1
a4173 1
9:00 - +09 1945 Sep 2
d4175 1
a4175 1
8:00 - +08 1955 Jul 1
@
1.10
log
@Merge tzdata2023c
@
text
@a678 1
# Vostok base in Antarctica matches this since 1970.
d3479 3
d3603 1
a3609 1
Rule Palestine 2075 max - Oct Sat<=30 2:00 0 -
@
1.9
log
@
Actually make the only changes that actually existed in the 2023b update...
@
text
@d2732 4
a2735 2
# Lebanon too announced today delay of Spring forward from March 25 to April 20.
# From Paul Eggert (2023-03-23):
d2737 26
d2786 1
a2786 1
Rule Lebanon 1993 2022 - Mar lastSun 0:00 1:00 S
d2789 4
a2792 2
Rule Lebanon 2023 only - Apr 21 0:00 1:00 S
Rule Lebanon 2024 max - Mar lastSun 0:00 1:00 S
@
1.8
log
@More merge/updates for tzdata 2023a
@
text
@d2730 6
d2758 1
a2758 1
Rule Lebanon 1993 max - Mar lastSun 0:00 1:00 S
d2761 2
@
1.7
log
@
Merge more changes that should have been made, but weren't. One day
I will work out why this doesn't happen automatically. Ugh.
@
text
@d3007 1
a3007 1
# http://www.dailytimes.com.pk/default.asp?page=2008%5C05%5C15%5Cstory_15-5-2008_pg1_4
d3330 1
a3330 1
# http://safa.ps/details/news/74352/%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%AA%D9%88%D9%82%D9%8A%D8%AA-%D8%A7%D9%84%D8%B5%D9%8A%D9%81%D9%8A-%D8%A8%D8%A7%D9%84%D8%B6%D9%81%D8%A9-%D9%88%D8%BA%D8%B2%D8%A9-%D9%84%D9%8A%D9%84%D8%A9-%D8%A7%D9%84%D8%AC%D9%85%D8%B9%D8%A9.html
d3340 1
a3340 1
# http://safa.ps/details/news/99844/%D8%B1%D8%A7%D9%85-%D8%A7%D9%84%D9%84%D9%87-%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%AA%D9%88%D9%82%D9%8A%D8%AA-%D8%A7%D9%84%D8%B5%D9%8A%D9%81%D9%8A-29-%D8%A7%D9%84%D8%AC%D8%A7%D8%B1%D9%8A.html
d3438 35
a3472 3
#
# From Paul Eggert (2022-08-31):
# For now, assume that this rule will also be used after 2026.
d3512 80
a3591 2
Rule Palestine 2022 max - Oct Sat<=30 2:00 0 -
Rule Palestine 2023 max - Mar Sat<=30 2:00 1:00 S
d3792 1
a3792 1
# "SLST" seems to be reasonably recent and rarely-used outside time
@
1.7.2.1
log
@Pull up the following, requested by kre in ticket #149:
external/public-domain/tz/dist/CONTRIBUTING up to 1.1.1.8
external/public-domain/tz/dist/Makefile up to 1.1.1.36
external/public-domain/tz/dist/NEWS up to 1.1.1.43
external/public-domain/tz/dist/TZDATA_VERSION up to 1.35
external/public-domain/tz/dist/africa up to 1.1.1.31
external/public-domain/tz/dist/antarctica up to 1.1.1.17
external/public-domain/tz/dist/asia up to 1.10
external/public-domain/tz/dist/australasia up to 1.7
external/public-domain/tz/dist/backward up to 1.11
external/public-domain/tz/dist/backzone up to 1.1.1.26
external/public-domain/tz/dist/checktab.awk up to 1.1.1.12
external/public-domain/tz/dist/europe up to 1.1.1.37
external/public-domain/tz/dist/iso3166.tab up to 1.1.1.8
external/public-domain/tz/dist/leap-seconds.list up to 1.5
external/public-domain/tz/dist/leapseconds up to 1.5
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.13
external/public-domain/tz/dist/northamerica up to 1.1.1.33
external/public-domain/tz/dist/southamerica up to 1.1.1.23
external/public-domain/tz/dist/theory.html up to 1.1.1.18
external/public-domain/tz/dist/version up to 1.10
external/public-domain/tz/dist/zone.tab up to 1.1.1.25
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.26
doc/3RDPARTY (apply patch)
sync with HEAD: updated tzdata to 2023c
@
text
@a2729 34
#
# From Saadallah Itani (2023-03-23):
# Lebanon ... announced today delay of Spring forward from March 25 to April 20.
#
# From Paul Eggert (2023-03-27):
# This announcement was by the Lebanese caretaker prime minister Najib Mikati.
# https://www.mtv.com.lb/en/News/Local/1352516/lebanon-postpones-daylight-saving-time-adoption
# A video was later leaked to the media of parliament speaker Nabih Berri
# asking Mikati to postpone DST to aid observance of Ramadan, Mikati objecting
# that this would cause problems such as scheduling airline flights, to which
# Berri interjected, "What flights?"
#
# The change was controversial and led to a partly-sectarian divide.
# Many Lebanese institutions, including the education ministry, the Maronite
# church, and two news channels LCBI and MTV, ignored the announcement and
# went ahead with the long-scheduled spring-forward on March 25/26, some
# arguing that the prime minister had not followed the law because the change
# had not been approved by the cabinet. Google went with the announcement;
# Apple ignored it. At least one bank followed the announcement for its doors,
# but ignored the announcement in internal computer systems.
# Beirut international airport listed two times for each departure.
# Dan Azzi wrote "My view is that this whole thing is a Dumb and Dumber movie."
# Eventually the prime minister backed down, said the cabinet had decided to
# stick with its 1998 decision, and that DST would begin midnight March 29/30.
# https://www.nna-leb.gov.lb/en/miscellaneous/604093/lebanon-has-two-times-of-day-amid-daylight-savings
# https://www.cnbc.com/2023/03/27/lebanon-in-two-different-time-zones-as-government-disagrees-on-daylight-savings.html
#
# Although we could model the chaos with two Zones, that would likely cause
# more trouble than it would cure. Since so many manual clocks and
# computer-based timestamps ignored the announcement, stick with official
# cabinet resolutions in the data while recording the prime minister's
# announcement as a comment. This is how we treated a similar situation in
# Rio de Janeiro in spring 1993.
#
a2754 4
# This one-time rule, announced by the prime minister first for April 21
# then for March 30, is commented out for reasons described above.
#Rule Lebanon 2023 only - Mar 30 0:00 1:00 S
d3007 1
a3007 1
# http://www.dailytimes.com.pk/default.asp?page=2008\05\15\story_15-5-2008_pg1_4
d3330 1
a3330 1
# http://safa.ps/details/news/74352/بدء-التوقيت-الصيفي-بالضفة-وغزة-ليلة-الجمعة.html
d3340 1
a3340 1
# http://safa.ps/details/news/99844/رام-الله-بدء-التوقيت-الصيفي-29-الجاري.html
d3438 3
a3440 35
# From Heba Hamad (2023-03-22):
# ... summer time will begin in Palestine from Saturday 04-29-2023,
# 02:00 AM by 60 minutes forward.
#
# From Paul Eggert (2023-03-22):
# For now, guess that spring and fall transitions will normally
# continue to use 2022's rules, that during DST Palestine will switch
# to standard time at 02:00 the last Saturday before Ramadan and back
# to DST at 02:00 the first Saturday after Ramadan, and that
# if the normal spring-forward or fall-back transition occurs during
# Ramadan the former is delayed and the latter advanced.
# To implement this, I predicted Ramadan-oriented transition dates for
# 2023 through 2086 by running the following program under GNU Emacs 28.2,
# with the results integrated by hand into the table below.
# Predictions after 2086 are approximated without Ramadan.
#
# (let ((islamic-year 1444))
# (require 'cal-islam)
# (while (< islamic-year 1510)
# (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year)))
# (b (+ 1 (calendar-islamic-to-absolute (list 10 1 islamic-year))))
# (saturday 6))
# (while (/= saturday (mod (setq a (1- a)) 7)))
# (while (/= saturday (mod b 7))
# (setq b (1+ b)))
# (setq a (calendar-gregorian-from-absolute a))
# (setq b (calendar-gregorian-from-absolute b))
# (insert
# (format
# (concat "Rule Palestine\t%d\tonly\t-\t%s\t%2d\t2:00\t0\t-\n"
# "Rule Palestine\t%d\tonly\t-\t%s\t%2d\t2:00\t1:00\tS\n")
# (car (cdr (cdr a))) (calendar-month-name (car a) t) (car (cdr a))
# (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b)))))
# (setq islamic-year (+ 1 islamic-year))))
d3480 2
a3481 80
Rule Palestine 2022 2035 - Oct Sat<=30 2:00 0 -
Rule Palestine 2023 only - Apr 29 2:00 1:00 S
Rule Palestine 2024 only - Apr 13 2:00 1:00 S
Rule Palestine 2025 only - Apr 5 2:00 1:00 S
Rule Palestine 2026 2054 - Mar Sat<=30 2:00 1:00 S
Rule Palestine 2036 only - Oct 18 2:00 0 -
Rule Palestine 2037 only - Oct 10 2:00 0 -
Rule Palestine 2038 only - Sep 25 2:00 0 -
Rule Palestine 2039 only - Sep 17 2:00 0 -
Rule Palestine 2039 only - Oct 22 2:00 1:00 S
Rule Palestine 2039 2067 - Oct Sat<=30 2:00 0 -
Rule Palestine 2040 only - Sep 1 2:00 0 -
Rule Palestine 2040 only - Oct 13 2:00 1:00 S
Rule Palestine 2041 only - Aug 24 2:00 0 -
Rule Palestine 2041 only - Sep 28 2:00 1:00 S
Rule Palestine 2042 only - Aug 16 2:00 0 -
Rule Palestine 2042 only - Sep 20 2:00 1:00 S
Rule Palestine 2043 only - Aug 1 2:00 0 -
Rule Palestine 2043 only - Sep 12 2:00 1:00 S
Rule Palestine 2044 only - Jul 23 2:00 0 -
Rule Palestine 2044 only - Aug 27 2:00 1:00 S
Rule Palestine 2045 only - Jul 15 2:00 0 -
Rule Palestine 2045 only - Aug 19 2:00 1:00 S
Rule Palestine 2046 only - Jun 30 2:00 0 -
Rule Palestine 2046 only - Aug 11 2:00 1:00 S
Rule Palestine 2047 only - Jun 22 2:00 0 -
Rule Palestine 2047 only - Jul 27 2:00 1:00 S
Rule Palestine 2048 only - Jun 6 2:00 0 -
Rule Palestine 2048 only - Jul 18 2:00 1:00 S
Rule Palestine 2049 only - May 29 2:00 0 -
Rule Palestine 2049 only - Jul 3 2:00 1:00 S
Rule Palestine 2050 only - May 21 2:00 0 -
Rule Palestine 2050 only - Jun 25 2:00 1:00 S
Rule Palestine 2051 only - May 6 2:00 0 -
Rule Palestine 2051 only - Jun 17 2:00 1:00 S
Rule Palestine 2052 only - Apr 27 2:00 0 -
Rule Palestine 2052 only - Jun 1 2:00 1:00 S
Rule Palestine 2053 only - Apr 12 2:00 0 -
Rule Palestine 2053 only - May 24 2:00 1:00 S
Rule Palestine 2054 only - Apr 4 2:00 0 -
Rule Palestine 2054 only - May 16 2:00 1:00 S
Rule Palestine 2055 only - May 1 2:00 1:00 S
Rule Palestine 2056 only - Apr 22 2:00 1:00 S
Rule Palestine 2057 only - Apr 7 2:00 1:00 S
Rule Palestine 2058 max - Mar Sat<=30 2:00 1:00 S
Rule Palestine 2068 only - Oct 20 2:00 0 -
Rule Palestine 2069 only - Oct 12 2:00 0 -
Rule Palestine 2070 only - Oct 4 2:00 0 -
Rule Palestine 2071 only - Sep 19 2:00 0 -
Rule Palestine 2072 only - Sep 10 2:00 0 -
Rule Palestine 2072 only - Oct 15 2:00 1:00 S
Rule Palestine 2073 only - Sep 2 2:00 0 -
Rule Palestine 2073 only - Oct 7 2:00 1:00 S
Rule Palestine 2074 only - Aug 18 2:00 0 -
Rule Palestine 2074 only - Sep 29 2:00 1:00 S
Rule Palestine 2075 only - Aug 10 2:00 0 -
Rule Palestine 2075 only - Sep 14 2:00 1:00 S
Rule Palestine 2075 max - Oct Sat<=30 2:00 0 -
Rule Palestine 2076 only - Jul 25 2:00 0 -
Rule Palestine 2076 only - Sep 5 2:00 1:00 S
Rule Palestine 2077 only - Jul 17 2:00 0 -
Rule Palestine 2077 only - Aug 28 2:00 1:00 S
Rule Palestine 2078 only - Jul 9 2:00 0 -
Rule Palestine 2078 only - Aug 13 2:00 1:00 S
Rule Palestine 2079 only - Jun 24 2:00 0 -
Rule Palestine 2079 only - Aug 5 2:00 1:00 S
Rule Palestine 2080 only - Jun 15 2:00 0 -
Rule Palestine 2080 only - Jul 20 2:00 1:00 S
Rule Palestine 2081 only - Jun 7 2:00 0 -
Rule Palestine 2081 only - Jul 12 2:00 1:00 S
Rule Palestine 2082 only - May 23 2:00 0 -
Rule Palestine 2082 only - Jul 4 2:00 1:00 S
Rule Palestine 2083 only - May 15 2:00 0 -
Rule Palestine 2083 only - Jun 19 2:00 1:00 S
Rule Palestine 2084 only - Apr 29 2:00 0 -
Rule Palestine 2084 only - Jun 10 2:00 1:00 S
Rule Palestine 2085 only - Apr 21 2:00 0 -
Rule Palestine 2085 only - Jun 2 2:00 1:00 S
Rule Palestine 2086 only - Apr 13 2:00 0 -
Rule Palestine 2086 only - May 18 2:00 1:00 S
d3682 1
a3682 1
# "SLST" seems to be reasonably recent and rarely used outside time
@
1.7.2.2
log
@Pull up the following, requested by kre in ticket #520:
external/public-domain/tz/dist/checknow.awk up to 1.1.1.1
external/public-domain/tz/dist/zonenow.tab up to 1.1.1.1
external/public-domain/tz/dist/Makefile up to 1.1.1.37
external/public-domain/tz/dist/NEWS up to 1.1.1.44
external/public-domain/tz/dist/README up to 1.1.1.11
external/public-domain/tz/dist/TZDATA_VERSION up to 1.36
external/public-domain/tz/dist/africa up to 1.1.1.32
external/public-domain/tz/dist/antarctica up to 1.1.1.18
external/public-domain/tz/dist/asia up to 1.11
external/public-domain/tz/dist/australasia up to 1.8
external/public-domain/tz/dist/backzone up to 1.1.1.27
external/public-domain/tz/dist/checktab.awk up to 1.1.1.13
external/public-domain/tz/dist/europe up to 1.1.1.38
external/public-domain/tz/dist/iso3166.tab up to 1.1.1.9
external/public-domain/tz/dist/leap-seconds.list up to 1.6
external/public-domain/tz/dist/leapseconds up to 1.6
external/public-domain/tz/dist/northamerica up to 1.1.1.34
external/public-domain/tz/dist/southamerica up to 1.1.1.24
external/public-domain/tz/dist/version up to 1.11
external/public-domain/tz/dist/zone.tab up to 1.1.1.26
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.27
doc/3RDPARTY 1.1972 (patch)
Import tzdata 2023d.
@
text
@d679 1
a3479 3
# From Heba Hemad (2023-10-09):
# ... winter time will begin in Palestine from Saturday 10-28-2023,
# 02:00 AM by 60 minutes back.
a3600 1
Rule Palestine 2072 max - Oct Sat<=30 2:00 0 -
d3607 1
@
1.7.2.3
log
@Pull up the following, requested by kre in ticket #586:
external/public-domain/tz/dist/Makefile up to 1.1.1.38
external/public-domain/tz/dist/NEWS up to 1.1.1.45
external/public-domain/tz/dist/TZDATA_VERSION up to 1.37
external/public-domain/tz/dist/africa up to 1.1.1.33
external/public-domain/tz/dist/asia up to 1.12
external/public-domain/tz/dist/australasia up to 1.9
external/public-domain/tz/dist/checknow.awk up to 1.1.1.2
external/public-domain/tz/dist/etcetera up to 1.1.1.8
external/public-domain/tz/dist/europe up to 1.1.1.39
external/public-domain/tz/dist/leap-seconds.list up to 1.7
external/public-domain/tz/dist/leapseconds up to 1.7
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.14
external/public-domain/tz/dist/northamerica up to 1.1.1.35
external/public-domain/tz/dist/southamerica up to 1.1.1.25
external/public-domain/tz/dist/theory.html up to 1.1.1.19
external/public-domain/tz/dist/version up to 1.12
external/public-domain/tz/dist/zishrink.awk up to 1.1.1.9
external/public-domain/tz/dist/zonenow.tab up to 1.1.1.2
Updated tzdata to 2024a
@
text
@a2480 11
# From Zhanbolat Raimbekov (2024-01-19):
# Kazakhstan (all parts) switching to UTC+5 on March 1, 2024
# https://www.gov.kz/memleket/entities/mti/press/news/details/688998?lang=ru
# [in Russian]
# (2024-01-20): https://primeminister.kz/ru/decisions/19012024-20
#
# From Alexander Krivenyshev (2024-01-19):
# According to a different news and the official web site for the Ministry of
# Trade and Integration of the Republic of Kazakhstan:
# https://en.inform.kz/news/kazakhstan-to-switch-to-single-hour-zone-mar-1-54ad0b/
d2484 2
a2485 5
# This includes Abai/Abay (ISO 3166-2 code KZ-10), Aqmola/Akmola (KZ-11),
# Almaty (KZ-19), Almaty city (KZ-75), Astana city (KZ-71),
# East Kazkhstan (KZ-63), Jambyl/Zhambyl (KZ-31), Jetisu/Zhetysu (KZ-33),
# Karaganda (KZ-35), North Kazakhstan (KZ-59), Pavlodar (KZ-55),
# Shyumkent city (KZ-79), Turkistan (KZ-61), and Ulytau (KZ-62).
d2491 2
a2492 3
6:00 - +06 2024 Mar 1 0:00
5:00 - +05
# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-43)
d2505 2
a2506 1
# Qostanay (aka Kostanay, Kustanay) (KZ-39)
d2517 3
a2519 3
6:00 - +06 2024 Mar 1 0:00
5:00 - +05
# Aqtöbe (aka Aktobe, formerly Aktyubinsk) (KZ-15)
d2529 1
a2529 1
# Mangghystaū (KZ-47)
d2541 1
a2541 1
# Atyraū (KZ-23) is like Mangghystaū except it switched from
d2552 1
a2552 1
# West Kazakhstan (KZ-27)
d3483 1
a3483 8
# From Heba Hamad (2024-01-25):
# the summer time for the years 2024,2025 will begin in Palestine
# from Saturday at 02:00 AM by 60 minutes forward as shown below:
# year date
# 2024 2024-04-20
# 2025 2025-04-12
#
# From Paul Eggert (2024-01-25):
d3487 1
a3487 1
# to DST at 02:00 the second Saturday after Ramadan, and that
d3491 1
a3491 1
# 2026 through 2086 by running the following program under GNU Emacs 29.2,
d3495 1
a3495 1
# (let ((islamic-year 1447))
a3503 1
# (setq b (+ 7 b))
d3554 2
a3555 2
Rule Palestine 2024 only - Apr 20 2:00 1:00 S
Rule Palestine 2025 only - Apr 12 2:00 1:00 S
d3561 2
d3564 1
a3564 2
Rule Palestine 2040 only - Oct 20 2:00 1:00 S
Rule Palestine 2040 2067 - Oct Sat<=30 2:00 0 -
d3566 1
a3566 1
Rule Palestine 2041 only - Oct 5 2:00 1:00 S
d3568 1
a3568 1
Rule Palestine 2042 only - Sep 27 2:00 1:00 S
d3570 1
a3570 1
Rule Palestine 2043 only - Sep 19 2:00 1:00 S
d3572 1
a3572 1
Rule Palestine 2044 only - Sep 3 2:00 1:00 S
d3574 1
a3574 1
Rule Palestine 2045 only - Aug 26 2:00 1:00 S
d3576 1
a3576 1
Rule Palestine 2046 only - Aug 18 2:00 1:00 S
d3578 1
a3578 1
Rule Palestine 2047 only - Aug 3 2:00 1:00 S
d3580 1
a3580 1
Rule Palestine 2048 only - Jul 25 2:00 1:00 S
d3582 1
a3582 1
Rule Palestine 2049 only - Jul 10 2:00 1:00 S
d3584 1
a3584 1
Rule Palestine 2050 only - Jul 2 2:00 1:00 S
d3586 1
a3586 1
Rule Palestine 2051 only - Jun 24 2:00 1:00 S
d3588 1
a3588 1
Rule Palestine 2052 only - Jun 8 2:00 1:00 S
d3590 1
a3590 1
Rule Palestine 2053 only - May 31 2:00 1:00 S
d3592 5
a3596 6
Rule Palestine 2054 only - May 23 2:00 1:00 S
Rule Palestine 2055 only - May 8 2:00 1:00 S
Rule Palestine 2056 only - Apr 29 2:00 1:00 S
Rule Palestine 2057 only - Apr 14 2:00 1:00 S
Rule Palestine 2058 only - Apr 6 2:00 1:00 S
Rule Palestine 2059 max - Mar Sat<=30 2:00 1:00 S
d3602 1
a3602 1
Rule Palestine 2072 only - Oct 22 2:00 1:00 S
d3605 1
a3605 1
Rule Palestine 2073 only - Oct 14 2:00 1:00 S
d3607 1
a3607 1
Rule Palestine 2074 only - Oct 6 2:00 1:00 S
d3609 1
a3609 1
Rule Palestine 2075 only - Sep 21 2:00 1:00 S
d3611 1
a3611 1
Rule Palestine 2076 only - Sep 12 2:00 1:00 S
d3613 1
a3613 1
Rule Palestine 2077 only - Sep 4 2:00 1:00 S
d3615 1
a3615 1
Rule Palestine 2078 only - Aug 20 2:00 1:00 S
d3617 1
a3617 1
Rule Palestine 2079 only - Aug 12 2:00 1:00 S
d3619 1
a3619 1
Rule Palestine 2080 only - Jul 27 2:00 1:00 S
d3621 1
a3621 1
Rule Palestine 2081 only - Jul 19 2:00 1:00 S
d3623 1
a3623 1
Rule Palestine 2082 only - Jul 11 2:00 1:00 S
d3625 1
a3625 1
Rule Palestine 2083 only - Jun 26 2:00 1:00 S
d3627 1
a3627 1
Rule Palestine 2084 only - Jun 17 2:00 1:00 S
d3629 1
a3629 1
Rule Palestine 2085 only - Jun 9 2:00 1:00 S
d3631 1
a3631 1
Rule Palestine 2086 only - May 25 2:00 1:00 S
d3659 1
a3659 1
# From Paul Eggert (2024-01-21):
d3667 1
a3667 1
# https://webspace.science.uu.nl/~gent0113/idl/idl_philippines.htm
d4084 1
a4084 2
# From Paul Eggert (2024-01-14) after a 2014 heads-up from Trần Ngọc Quân
# and a 2024-01-14 heads-up from Đoàn Trần Công Danh:
d4114 2
a4115 5
# Hoàng Xuân Hãn: "Lịch và lịch Việt Nam". Tập san Khoa học Xã hội,
# No. 9, Paris, February 1982.
#
# Lê Thành Lân: "Lịch và niên biểu lịch sử hai mươi thế kỷ (0001-2010)",
# NXB Thống kê, Hanoi, 2000.
d4117 2
a4118 2
# Lê Thành Lân: "Lịch hai thế kỷ (1802-2010) và các lịch vĩnh cửu",
# NXB Thuận Hoá, Huế, 1995.
d4120 2
a4121 20
# Here is the decision for the September 1945 transition:
# Võ Nguyên Giáp, Việt Nam Dân Quốc Công Báo, No. 1 (1945-09-29), page 13
# http://baochi.nlv.gov.vn/baochi/cgi-bin/baochi?a=d&d=JwvzO19450929.2.5&dliv=none
# It says that on 1945-09-01 at 24:00, Vietnam moved back two hours, to +07.
# It also mentions a 1945-03-29 decree (by a Japanese Goveror-General)
# to set the time zone to +09, but does not say whether that decree
# merely legalized an earlier change to +09.
#
# July 1955 transition:
# Ngô Đình Diệm, Công Báo Việt Nam, No. 92 (1955-07-02), page 1780-1781
# Ordinance (Dụ) No. 46 (1955-06-25)
# http://ddsnext.crl.edu/titles/32341#?c=0&m=29&s=0&cv=4&r=0&xywh=-89%2C342%2C1724%2C1216
# It says that on 1955-07-01 at 01:00, South Vietnam moved back 1 hour (to +07).
#
# December 1959 transition:
# Ngô Đình Diệm, Công Báo Việt Nam Cộng Hòa, 1960 part 1 (1960-01-02), page 62
# Decree (Sắc lệnh) No. 362-TTP (1959-12-30)
# http://ddsnext.crl.edu/titles/32341#?c=0&m=138&s=0&cv=793&r=0&xywh=-54%2C1504%2C1705%2C1202
# It says that on 1959-12-31 at 23:00, South Vietnam moved forward 1 hour (to +08).
d4129 1
a4129 1
9:00 - +09 1945 Sep 1 24:00
d4131 1
a4131 1
8:00 - +08 1955 Jul 1 01:00
@
1.7.2.4
log
@Pullup the following revisions, requested by kre in ticket #1094:
external/public-domain/tz/dist/zoneinfo2tdf.pl delete
external/public-domain/tz/dist/CONTRIBUTING up to 1.1.1.9
external/public-domain/tz/dist/Makefile up to 1.3
external/public-domain/tz/dist/NEWS up to 1.3
external/public-domain/tz/dist/TZDATA_VERSION up to 1.41
external/public-domain/tz/dist/africa up to 1.2
external/public-domain/tz/dist/antarctica up to 1.3
external/public-domain/tz/dist/asia up to 1.14
external/public-domain/tz/dist/australasia up to 1.11
external/public-domain/tz/dist/backward up to 1.12
external/public-domain/tz/dist/backzone up to 1.2
external/public-domain/tz/dist/checknow.awk up to 1.3
external/public-domain/tz/dist/checktab.awk up to 1.3
external/public-domain/tz/dist/etcetera up to 1.3
external/public-domain/tz/dist/europe up to 1.3
external/public-domain/tz/dist/factory up to 1.3
external/public-domain/tz/dist/leap-seconds.list up to 1.9
external/public-domain/tz/dist/leapseconds up to 1.9
external/public-domain/tz/dist/northamerica up to 1.3
external/public-domain/tz/dist/southamerica up to 1.3
external/public-domain/tz/dist/theory.html up to 1.3
external/public-domain/tz/dist/version up to 1.14
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.11
external/public-domain/tz/dist/zone.tab up to 1.3
external/public-domain/tz/dist/zone1970.tab up to 1.3
external/public-domain/tz/dist/zonenow.tab up to 1.3
distrib/sets/lists/base/mi (apply patch)
doc/3RDPARTY (apply patch)
Updated tzdata to 2025b (using 2025btgz)
@
text
@d86 2
a87 2
4:00 - %z 1945
4:30 - %z
d119 6
a124 6
3:00 - %z 1957 Mar
4:00 RussiaAsia %z 1991 Mar 31 2:00s
3:00 RussiaAsia %z 1995 Sep 24 2:00s
4:00 - %z 1997
4:00 RussiaAsia %z 2011
4:00 Armenia %z
d145 6
a150 6
3:00 - %z 1957 Mar
4:00 RussiaAsia %z 1991 Mar 31 2:00s
3:00 RussiaAsia %z 1992 Sep lastSun 2:00s
4:00 - %z 1996
4:00 EUAsia %z 1997
4:00 Azer %z
d238 5
a242 5
6:30 - %z 1942 May 15
5:30 - %z 1942 Sep
6:30 - %z 1951 Sep 30
6:00 - %z 2009
6:00 Dhaka %z
d247 2
a248 2
5:30 - %z 1987 Oct
6:00 - %z
d258 2
a259 2
5:00 - %z 1996
6:00 - %z
d280 3
a282 3
6:30 - %z 1942 May
9:00 - %z 1945 May 3
6:30 - %z
d680 1
a680 1
6:00 - %z
d1138 1
a1138 1
9:00 Macau %z 1945 Sep 30 24:00
d1181 1
a1181 1
3:00 - %z 2017 Oct 29 1:00u
d1222 9
a1230 9
3:00 - %z 1957 Mar
4:00 RussiaAsia %z 1991 Mar 31 2:00s
3:00 RussiaAsia %z 1992
3:00 E-EurAsia %z 1994 Sep lastSun
4:00 E-EurAsia %z 1996 Oct lastSun
4:00 1:00 %z 1997 Mar lastSun
4:00 E-EurAsia %z 2004 Jun 27
3:00 RussiaAsia %z 2005 Mar lastSun 2:00
4:00 - %z
a1233 7
# From Tim Parenti (2024-07-01):
# The 1912-01-01 transition occurred at 00:00 new time, per the 1911-05-24
# Portuguese decree (see Europe/Lisbon). A provision in article 5(c) of the
# decree prescribed that Timor "will keep counting time in harmony with
# neighboring foreign colonies, [for] as long as they do not adopt the time
# that belongs to them in [the Washington Convention] system."
d1257 5
a1261 5
Zone Asia/Dili 8:22:20 - LMT 1911 Dec 31 16:00u
8:00 - %z 1942 Feb 21 23:00
9:00 - %z 1976 May 3
8:00 - %z 2000 Sep 17 0:00
9:00 - %z
d1327 1
a1327 1
5:30 1:00 %z 1942 May 15
d1329 1
a1329 1
5:30 1:00 %z 1945 Oct 15
d1381 6
a1386 6
7:20 - %z 1932 Nov
7:30 - %z 1942 Mar 23
9:00 - %z 1945 Sep 23
7:30 - %z 1948 May
8:00 - %z 1950 May
7:30 - %z 1964
d1391 5
a1395 5
7:30 - %z 1942 Jan 29
9:00 - %z 1945 Sep 23
7:30 - %z 1948 May
8:00 - %z 1950 May
7:30 - %z 1964
d1401 2
a1402 2
8:00 - %z 1942 Feb 9
9:00 - %z 1945 Sep 23
d1406 2
a1407 2
9:00 - %z 1944 Sep 1
9:30 - %z 1964
d1643 3
a1645 3
3:30 Iran %z 1977 Oct 20 24:00
4:00 Iran %z 1979
3:30 Iran %z
d1688 2
a1689 2
3:00 - %z 1982 May
3:00 Iraq %z
d2286 1
a2286 1
3:00 - %z
d2497 1
a2497 1
# East Kazakhstan (KZ-63), Jambyl/Zhambyl (KZ-31), Jetisu/Zhetysu (KZ-33),
d2499 1
a2499 1
# Shymkent city (KZ-79), Turkistan (KZ-61), and Ulytau (KZ-62).
d2501 6
a2506 6
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00s
5:00 RussiaAsia %z 1992 Jan 19 2:00s
6:00 RussiaAsia %z 2004 Oct 31 2:00s
6:00 - %z 2024 Mar 1 0:00
5:00 - %z
d2509 11
a2519 11
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1991 Sep 29 2:00s
5:00 RussiaAsia %z 1992 Jan 19 2:00s
6:00 RussiaAsia %z 1992 Mar 29 2:00s
5:00 RussiaAsia %z 2004 Oct 31 2:00s
6:00 - %z 2018 Dec 21 0:00
5:00 - %z
d2524 9
a2532 9
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 2004 Oct 31 2:00s
6:00 - %z 2024 Mar 1 0:00
5:00 - %z
d2535 8
a2542 8
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
d2547 8
a2554 8
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 1994 Sep 25 2:00s
4:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
d2558 8
a2565 8
3:00 - %z 1930 Jun 21
5:00 - %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 1999 Mar 28 2:00s
4:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
d2570 9
a2578 9
3:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1989 Mar 26 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 1992 Mar 29 2:00s
4:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
d2599 5
a2603 5
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00s
5:00 RussiaAsia %z 1991 Aug 31 2:00
5:00 Kyrgyz %z 2005 Aug 12
6:00 - %z
d2834 4
a2837 4
7:30 - %z 1933
8:00 NBorneo %z 1942 Feb 16
9:00 - %z 1945 Sep 12
8:00 - %z
d2843 1
a2843 1
5:00 - %z
d2945 3
a2947 31
# From Heitor David Pinto (2024-06-23):
# Sources about time zones in Mongolia seem to list one of two conflicting
# configurations. The first configuration, mentioned in a comment to the TZ
# database in 1999, citing a Mongolian government website, lists the provinces
# of Bayan-Ölgii, Khovd and Uvs in UTC+7, and the rest of the country in
# UTC+8. The second configuration, mentioned in a comment to the database in
# 2001, lists Bayan-Ölgii, Khovd, Uvs, Govi-Altai and Zavkhan in UTC+7, Dornod
# and Sükhbaatar in UTC+9, and the rest of the country in UTC+8.
#
# The first configuration is still mentioned by several Mongolian travel
# agencies:
# https://www.adventurerider.mn/en/page/about_mongolia
# http://www.naturetours.mn/nt/mongolia.php
# https://www.newjuulchin.mn/web/content/7506?unique=fa24a0f6e96e022a3578ee5195ac879638c734ce
#
# It also matches these flight schedules in 2013:
# http://web.archive.org/web/20130722023600/https://www.hunnuair.com/en/timetabled
# The flight times imply that the airports of Uliastai (Zavkhan), Choibalsan
# (Dornod) and Altai (Govi-Altai) are in the same time zone as Ulaanbaatar,
# and Khovd is one hour behind....
#
# The second configuration was mentioned by an official of the Mongolian
# standards agency in an interview in 2014: https://ikon.mn/n/9v6
# And it's still listed by the Mongolian aviation agency:
# https://ais.mn/files/aip/eAIP/2023-12-25/html/eSUP/ZM-eSUP-23-04-en-MN.html
#
# ... I believe that the first configuration is what is actually observed in
# Mongolia and has been so all along, at least since 1999. The second
# configuration closely matches the ideal time zone boundaries at 97.5° E and
# 112.5° E but it doesn't seem to be used in practice.
d2986 2
a2987 2
6:00 - %z 1978
7:00 Mongol %z
d2990 9
a2998 2
7:00 - %z 1978
8:00 Mongol %z
d3003 2
a3004 2
5:30 - %z 1986
5:45 - %z
d3155 4
a3158 4
5:30 - %z 1942 Sep
5:30 1:00 %z 1945 Oct 15
5:30 - %z 1951 Sep 30
5:00 - %z 1971 Mar 26
d3690 1
d3692 13
a3704 63
# From P Chan (2021-05-10):
# Here's a fairly comprehensive article in Japanese:
# https://wiki.suikawiki.org/n/Philippine%20Time
# (2021-05-16):
# According to the references listed in the article,
# the periods that the Philippines (Manila) observed DST or used +9 are:
#
# 1936-10-31 24:00 to 1937-01-15 24:00
# (Proclamation No. 104, Proclamation No. 126)
# 1941-12-15 24:00 to 1945-11-30 24:00
# (Proclamation No. 789, Proclamation No. 20)
# 1954-04-11 24:00 to 1954-06-04 24:00
# (Proclamation No. 13, Proclamation No. 33)
# 1977-03-27 24:00 to 1977-09-21 24:00
# (Proclamation No. 1629, Proclamation No. 1641)
# 1990-05-21 00:00 to 1990-07-28 24:00
# (National Emergency Memorandum Order No. 17, Executive Order No. 415)
#
# Proclamation No. 104 ... October 30, 1936
# https://www.officialgazette.gov.ph/1936/10/30/proclamation-no-104-s-1936/
# Proclamation No. 126 ... January 15, 1937
# https://www.officialgazette.gov.ph/1937/01/15/proclamation-no-126-s-1937/
# Proclamation No. 789 ... December 13, 1941
# https://www.officialgazette.gov.ph/1941/12/13/proclamation-no-789-s-1941/
# Proclamation No. 20 ... November 11, 1945
# https://www.officialgazette.gov.ph/1945/11/11/proclamation-no-20-s-1945/
# Proclamation No. 13 ... April 6, 1954
# https://www.officialgazette.gov.ph/1954/04/06/proclamation-no-13-s-1954/
# Proclamation No. 33 ... June 3, 1954
# https://www.officialgazette.gov.ph/1954/06/03/proclamation-no-33-s-1954/
# Proclamation No. 1629 ... March 25, 1977
# https://www.officialgazette.gov.ph/1977/03/25/proclamation-no-1629-s-1977/
# Proclamation No. 1641 ...May 26, 1977
# https://www.officialgazette.gov.ph/1977/05/26/proclamation-no-1641-s-1977/
# National Emergency Memorandum Order No. 17 ... May 2, 1990
# https://www.officialgazette.gov.ph/1990/05/02/national-emergency-memorandum-order-no-17-s-1990/
# Executive Order No. 415 ... July 20, 1990
# https://www.officialgazette.gov.ph/1990/07/20/executive-order-no-415-s-1990/
#
# During WWII, Proclamation No. 789 fixed two periods of DST. The first period
# was set to continue only until January 31, 1942. But Manila was occupied by
# the Japanese earlier in the month....
#
# For the date of the adoption of standard time, Shank[s] gives 1899-05-11.
# The article is not able to state the basis of that. I guess it was based on
# a US War Department Circular issued on that date.
# https://books.google.com/books?id=JZ1PAAAAYAAJ&pg=RA3-PA8
#
# However, according to other sources, standard time was adopted on
# 1899-09-06. Also, the LMT was GMT+8:03:52
# https://books.google.com/books?id=MOYIAQAAIAAJ&pg=PA521
# https://books.google.com/books?id=lSnqqatpYikC&pg=PA21
#
# From Paul Eggert (2024-09-05):
# The penultimate URL in P Chan's email refers to page 521 of
# Selga M, The Time Service in the Philippines.
# Proc Pan-Pacific Science Congress. Vol. 1 (1923), 519-532.
# It says, "The change from the meridian 120° 58' 04" to the 120th implied a
# change of 3 min. 52s.26 in time; consequently on 6th September, 1899,
# Manila Observatory gave the noon signal 3 min. 52s.26 later than before".
#
# Wikipedia says the US declared Manila liberated on March 4, 1945;
# this doesn't affect clocks, just our time zone abbreviation and DST flag.
d3706 1
a3706 1
# From Paul Goyette (2018-06-15) with URLs updated by Guy Harris (2024-02-15):
d3712 2
a3713 2
# [1] https://www.officialgazette.gov.ph/2013/05/15/republic-act-no-10535/
# [2] https://prsd.pagasa.dost.gov.ph/index.php/28-astronomy/302-philippine-standard-time
d3722 6
d3729 11
a3739 19
Rule Phil 1936 only - Oct 31 24:00 1:00 D
Rule Phil 1937 only - Jan 15 24:00 0 S
Rule Phil 1941 only - Dec 15 24:00 1:00 D
# The following three rules were canceled by Japan:
#Rule Phil 1942 only - Jan 31 24:00 0 S
#Rule Phil 1942 only - Mar 1 0:00 1:00 D
#Rule Phil 1942 only - Jun 30 24:00 0 S
Rule Phil 1945 only - Nov 30 24:00 0 S
Rule Phil 1954 only - Apr 11 24:00 1:00 D
Rule Phil 1954 only - Jun 4 24:00 0 S
Rule Phil 1977 only - Mar 27 24:00 1:00 D
Rule Phil 1977 only - Sep 21 24:00 0 S
Rule Phil 1990 only - May 21 0:00 1:00 D
Rule Phil 1990 only - Jul 28 24:00 0 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Manila -15:56:08 - LMT 1844 Dec 31
8:03:52 - LMT 1899 Sep 6 4:00u
8:00 Phil P%sT 1942 Feb 11 24:00
9:00 - JST 1945 Mar 4
d3745 2
a3746 2
4:00 - %z 1972 Jun
3:00 - %z
d3794 1
a3794 1
3:00 - %z
d3802 7
a3808 7
7:00 - %z 1933 Jan 1
7:00 0:20 %z 1936 Jan 1
7:20 - %z 1941 Sep 1
7:30 - %z 1942 Feb 16
9:00 - %z 1945 Sep 12
7:30 - %z 1981 Dec 31 16:00u
8:00 - %z
d3866 7
a3872 7
5:30 - %z 1942 Jan 5
5:30 0:30 %z 1942 Sep
5:30 1:00 %z 1945 Oct 16 2:00
5:30 - %z 1996 May 25 0:00
6:30 - %z 1996 Oct 26 0:30
6:00 - %z 2006 Apr 15 0:30
5:30 - %z
d4043 1
a4043 1
3:00 - %z
d4049 4
a4052 4
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00s
5:00 1:00 %z 1991 Sep 9 2:00s
5:00 - %z
d4058 1
a4058 1
7:00 - %z
d4064 4
a4067 4
4:00 - %z 1930 Jun 21
5:00 RussiaAsia %z 1991 Mar 31 2:00
4:00 RussiaAsia %z 1992 Jan 19 2:00
5:00 - %z
d4074 1
a4074 1
4:00 - %z
d4080 6
a4085 6
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1992
5:00 - %z
d4089 4
a4092 4
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00
5:00 RussiaAsia %z 1992
5:00 - %z
d4150 1
a4150 1
# It also mentions a 1945-03-29 decree (by a Japanese Governor-General)
d4171 8
a4178 8
7:00 - %z 1942 Dec 31 23:00
8:00 - %z 1945 Mar 14 23:00
9:00 - %z 1945 Sep 1 24:00
7:00 - %z 1947 Apr 1
8:00 - %z 1955 Jul 1 01:00
7:00 - %z 1959 Dec 31 23:00
8:00 - %z 1975 Jun 13
7:00 - %z
@
1.7.2.5
log
@Pull up following revision(s) (requested by kre in ticket #1094):
external/public-domain/tz/dist/northamerica: revision 1.4
external/public-domain/tz/dist/version: revision 1.15
external/public-domain/tz/dist/asia: revision 1.15
external/public-domain/tz/dist/zonenow.tab: revision 1.4
external/public-domain/tz/dist/southamerica: revision 1.4
external/public-domain/tz/dist/zone1970.tab: revision 1.4
external/public-domain/tz/dist/NEWS: revision 1.4
external/public-domain/tz/dist/TZDATA_VERSION: revision 1.42
external/public-domain/tz/dist/zone.tab: revision 1.4
Merge tzdata2025b
@
text
@a1523 10
# From Roozbeh Pournader (2025-03-18):
# ... the exact time of Iran's transition from +0400 to +0330 ... was Friday
# 1357/8/19 AP=1978-11-10. Here's a newspaper clip from the Ettela'at
# newspaper, dated 1357/8/14 AP=1978-11-05, translated from Persian
# (at https://w.wiki/DUEY):
# Following the government's decision about returning the official time
# to the previous status, the spokesperson for the Ministry of Energy
# announced today: At the hour 24 of Friday 19th of Aban (=1978-11-10),
# the country's time will be pulled back half an hour.
#
d1651 1
a1651 1
4:00 Iran %z 1978 Nov 10 24:00
@
1.6
log
@
Merge changes that should have been merged in earlier updates, but
got missed. This is in preparation for an updata to tzdata2022g
which is coming soon (still from the gtz fork).
There is a (small) chance this update might break the build, that will
be fixed (if it happens) when 2022g is merged (which should not be
very far into the future).
@
text
@d2773 1
a2773 1
7:30 - +0730 1982 Jan 1
d3635 1
a3635 1
7:30 - +0730 1982 Jan 1
@
1.5
log
@Merge tzdata2022c
@
text
@d267 1
a267 1
# Burma / Myanmar
a292 1
d679 1
a682 1
a1184 4
# Classically, Cyprus belongs to Asia; e.g. see Herodotus, Histories, I.72.
# However, for various reasons many users expect to find it under Europe.
Link Asia/Nicosia Europe/Nicosia
d1514 2
a1515 2
# for Iran and 1977 the effective change is only 20 october
# (UIT No. 143 17.XI.1977) and not 23 september (UIT No. 141 13.IX.1977).
d2240 11
d2282 2
a2283 2
Rule Jordan 2014 max - Oct lastFri 0:00s 0 -
Rule Jordan 2022 max - Feb lastThu 24:00 1:00 S
d2286 2
a2287 1
2:00 Jordan EE%sT
a2712 2
###############################################################################
a2728 1
d2759 1
a2759 1
# Malaysia
a3413 4
#
# From Paul Eggert (2019-04-10):
# For now, guess spring-ahead transitions are at 00:00 on the Saturday
# preceding March's last Sunday (i.e., Sat>=24).
d3430 12
d3472 2
a3473 2
Rule Palestine 2016 2018 - Mar Sat>=24 1:00 1:00 S
Rule Palestine 2016 2018 - Oct Sat>=24 1:00 0 -
d3475 2
a3476 2
Rule Palestine 2019 only - Oct Sat>=24 0:00 0 -
Rule Palestine 2020 2021 - Mar Sat>=24 0:00 1:00 S
d3478 4
a3481 2
Rule Palestine 2021 max - Oct Fri>=23 1:00 0 -
Rule Palestine 2022 max - Mar Sun>=25 0:00 1:00 S
d3578 2
d3851 9
a3859 2
# From Arthur David Olson (2012-03-27):
# Assume last Friday in March going forward XXX.
d3865 2
a3866 2
Rule Syria 2012 max - Mar lastFri 0:00 1:00 S
Rule Syria 2009 max - Oct lastFri 0:00 0 -
d3870 2
a3871 1
2:00 Syria EE%sT
d3898 2
d3922 1
a3922 1
# Vietnam
a3996 1
@
1.4
log
@Merge tzdata2022agtz
@
text
@d357 3
a359 6
# a. For the 1940 May 31 spring forward, the essay claim that it was
# coordinared between the international settlement authority and the French
# concession authority and have gathered support from Hong Kong and Xiamen,
# that it would spring forward an hour from May 31 "midnight", and the essay
# claim "Hong Kong government implemented the spring forward in the same time
# on the same date as Shanghai".
d555 1
a555 1
# Milne gives 8:05:43.2 for Xujiahui Observatory time; round to nearest.
d674 1
d686 1
a686 1
# Milne gives 7:36:41.7; round this.
d870 2
a871 1
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30 0:36:42
d1346 1
a1346 1
# civil time was 7:07:12.5; round to even for Jakarta.
d1382 1
d1386 1
a1386 1
7:07:12 - BMT 1923 Dec 31 23:47:12 # Batavia
d1418 105
d1557 6
a1562 59
# From Paul Eggert (2018-11-30):
# Go with Shanks & Pottenger before Sept. 1991, and with Pournader thereafter.
# I used the following code in GNU Emacs 26.1 to generate the "Rule Iran"
# lines from 2008 through 2087. Emacs 26.1 uses Ed Reingold's
# cal-persia implementation of Birashk's approximation, which in the
# 2008-2087 range disagrees with the astronomical Persian calendar
# for Persian years 1404 (Gregorian 2025) and 1437 (Gregorian 2058), so
# the following code special-cases those years. See Table 15.1, page 264, of:
# Edward M. Reingold and Nachum Dershowitz, Calendrical Calculations:
# The Ultimate Edition, Cambridge University Press (2018).
# https://www.cambridge.org/fr/academic/subjects/computer-science/computing-general-interest/calendrical-calculations-ultimate-edition-4th-edition
# Page 258, footnote 2, of this book says there is some dispute over what will
# happen in 2091 (and some other years after that), so this code
# stops in 2087, as 2088 and 2089 agree with the "max" rule below.
# (cl-loop
# initially (require 'cal-persia)
# with first-persian-year = 1387
# with last-persian-year = 1466
# ;; Exceptional years in the above range,
# ;; from Reingold & Dershowitz Table 15.1, page 264:
# with exceptional-persian-years = '(1404 1437)
# with range-start = nil
# for persian-year from first-persian-year to last-persian-year
# do
# (let*
# ((exceptional-year-offset
# (if (member persian-year exceptional-persian-years) 1 0))
# (beg-dst-absolute
# (+ (calendar-persian-to-absolute (list 1 1 persian-year))
# exceptional-year-offset))
# (end-dst-absolute
# (+ (calendar-persian-to-absolute (list 6 30 persian-year))
# exceptional-year-offset))
# (next-year-beg-dst-absolute
# (+ (calendar-persian-to-absolute (list 1 1 (1+ persian-year)))
# (if (member (1+ persian-year) exceptional-persian-years) 1 0)))
# (beg-dst (calendar-gregorian-from-absolute beg-dst-absolute))
# (end-dst (calendar-gregorian-from-absolute end-dst-absolute))
# (next-year-beg-dst (calendar-gregorian-from-absolute
# next-year-beg-dst-absolute))
# (year (calendar-extract-year beg-dst))
# (range-end (if range-start year "only")))
# (setq range-start (or range-start year))
# (when (or (/= (calendar-extract-day beg-dst)
# (calendar-extract-day next-year-beg-dst))
# (= persian-year last-persian-year))
# (insert
# (format
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t1:00\t-\n"
# range-start range-end
# (calendar-month-name (calendar-extract-month beg-dst) t)
# (calendar-extract-day beg-dst)))
# (insert
# (format
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t0\t-\n"
# range-start range-end
# (calendar-month-name (calendar-extract-month end-dst) t)
# (calendar-extract-day end-dst)))
# (setq range-start nil))))
d1596 6
d1603 8
a1610 2
Rule Iran 1978 1980 - Mar 20 24:00 1:00 -
Rule Iran 1978 only - Oct 20 24:00 0 -
d1612 1
d1643 2
a1644 74
Rule Iran 2021 2023 - Mar 21 24:00 1:00 -
Rule Iran 2021 2023 - Sep 21 24:00 0 -
Rule Iran 2024 only - Mar 20 24:00 1:00 -
Rule Iran 2024 only - Sep 20 24:00 0 -
Rule Iran 2025 2027 - Mar 21 24:00 1:00 -
Rule Iran 2025 2027 - Sep 21 24:00 0 -
Rule Iran 2028 2029 - Mar 20 24:00 1:00 -
Rule Iran 2028 2029 - Sep 20 24:00 0 -
Rule Iran 2030 2031 - Mar 21 24:00 1:00 -
Rule Iran 2030 2031 - Sep 21 24:00 0 -
Rule Iran 2032 2033 - Mar 20 24:00 1:00 -
Rule Iran 2032 2033 - Sep 20 24:00 0 -
Rule Iran 2034 2035 - Mar 21 24:00 1:00 -
Rule Iran 2034 2035 - Sep 21 24:00 0 -
Rule Iran 2036 2037 - Mar 20 24:00 1:00 -
Rule Iran 2036 2037 - Sep 20 24:00 0 -
Rule Iran 2038 2039 - Mar 21 24:00 1:00 -
Rule Iran 2038 2039 - Sep 21 24:00 0 -
Rule Iran 2040 2041 - Mar 20 24:00 1:00 -
Rule Iran 2040 2041 - Sep 20 24:00 0 -
Rule Iran 2042 2043 - Mar 21 24:00 1:00 -
Rule Iran 2042 2043 - Sep 21 24:00 0 -
Rule Iran 2044 2045 - Mar 20 24:00 1:00 -
Rule Iran 2044 2045 - Sep 20 24:00 0 -
Rule Iran 2046 2047 - Mar 21 24:00 1:00 -
Rule Iran 2046 2047 - Sep 21 24:00 0 -
Rule Iran 2048 2049 - Mar 20 24:00 1:00 -
Rule Iran 2048 2049 - Sep 20 24:00 0 -
Rule Iran 2050 2051 - Mar 21 24:00 1:00 -
Rule Iran 2050 2051 - Sep 21 24:00 0 -
Rule Iran 2052 2053 - Mar 20 24:00 1:00 -
Rule Iran 2052 2053 - Sep 20 24:00 0 -
Rule Iran 2054 2055 - Mar 21 24:00 1:00 -
Rule Iran 2054 2055 - Sep 21 24:00 0 -
Rule Iran 2056 2057 - Mar 20 24:00 1:00 -
Rule Iran 2056 2057 - Sep 20 24:00 0 -
Rule Iran 2058 2059 - Mar 21 24:00 1:00 -
Rule Iran 2058 2059 - Sep 21 24:00 0 -
Rule Iran 2060 2062 - Mar 20 24:00 1:00 -
Rule Iran 2060 2062 - Sep 20 24:00 0 -
Rule Iran 2063 only - Mar 21 24:00 1:00 -
Rule Iran 2063 only - Sep 21 24:00 0 -
Rule Iran 2064 2066 - Mar 20 24:00 1:00 -
Rule Iran 2064 2066 - Sep 20 24:00 0 -
Rule Iran 2067 only - Mar 21 24:00 1:00 -
Rule Iran 2067 only - Sep 21 24:00 0 -
Rule Iran 2068 2070 - Mar 20 24:00 1:00 -
Rule Iran 2068 2070 - Sep 20 24:00 0 -
Rule Iran 2071 only - Mar 21 24:00 1:00 -
Rule Iran 2071 only - Sep 21 24:00 0 -
Rule Iran 2072 2074 - Mar 20 24:00 1:00 -
Rule Iran 2072 2074 - Sep 20 24:00 0 -
Rule Iran 2075 only - Mar 21 24:00 1:00 -
Rule Iran 2075 only - Sep 21 24:00 0 -
Rule Iran 2076 2078 - Mar 20 24:00 1:00 -
Rule Iran 2076 2078 - Sep 20 24:00 0 -
Rule Iran 2079 only - Mar 21 24:00 1:00 -
Rule Iran 2079 only - Sep 21 24:00 0 -
Rule Iran 2080 2082 - Mar 20 24:00 1:00 -
Rule Iran 2080 2082 - Sep 20 24:00 0 -
Rule Iran 2083 only - Mar 21 24:00 1:00 -
Rule Iran 2083 only - Sep 21 24:00 0 -
Rule Iran 2084 2086 - Mar 20 24:00 1:00 -
Rule Iran 2084 2086 - Sep 20 24:00 0 -
Rule Iran 2087 only - Mar 21 24:00 1:00 -
Rule Iran 2087 only - Sep 21 24:00 0 -
#
# The following rules are approximations starting in the year 2088.
# These are the best post-2088 approximations available, given the
# restrictions of a single rule using ordinary Gregorian dates.
# At some point this table will need to be extended, though quite
# possibly Iran will change the rules first.
Rule Iran 2088 max - Mar 20 24:00 1:00 -
Rule Iran 2088 max - Sep 20 24:00 0 -
d1648 2
a1649 2
3:25:44 - TMT 1946 # Tehran Mean Time
3:30 - +0330 1977 Nov
d2471 3
a2473 3
# Qyzyolrda Region (Asia/Qyzylorda) is changing its time zone from
# UTC+6 to UTC+5 effective December 21st, 2018. The legal document is
# located here: http://adilet.zan.kz/rus/docs/P1800000817 (russian language).
d2760 1
a2760 4
# peninsular Malaysia
# taken from Mok Ly Yng (2003-10-30)
# https://web.archive.org/web/20190822231045/http://www.math.nus.edu.sg/~mathelmr/teaching/timezone.html
# This agrees with Singapore since 1905-06-01.
d2771 2
d3855 1
a3855 1
5:00 1:00 +05/+06 1991 Sep 9 2:00s
d3888 2
a3889 1
# Milne says Tashkent was 4:37:10.8; round to nearest.
d3908 1
a3908 1
# From Paul Eggert (2014-10-21) after a heads-up from Trần Ngọc Quân:
d3920 2
a3921 2
# the Paris Meridian (2° 20' 14.03" E); the former yields 07:06:30.1333...
# and the latter 07:06:29.333... so either way it rounds to 07:06:30,
d3948 2
a3949 1
Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jul 1
@
1.3
log
@
Update to tzdata2021e (with much of 2020b still omitted)
This includes 2021c (no changes) 2021d (Fiji change) 2021e (Palestine)
Fiji has cancelled summer time changes for 2021/2 summer. Currently
assume it will be back in 2022/3.
Palestine ends summer time October 29 01:00 (rather than Oct 30).
Pacific/Enderbury is renamed to Pacific/Kanton and updated for
historic data (Pacific/Enderbury retained as a link for compat).
Historic timestamp fixes for Niue, Rarotonga, Tongatapu
@
text
@d153 5
a157 1
# See Asia/Qatar.
d285 7
a291 1
# See Asia/Bangkok.
d2716 3
a2718 1
# See Asia/Riyadh.
d2721 9
a2729 1
# See Asia/Bangkok.
d2770 1
d2960 3
a2962 1
# See Asia/Dubai.
d3431 6
a3436 2
# From Paul Eggert (2021-10-20):
# Guess future fall transitions on October's last Friday at 01:00.
d3472 1
a3472 1
Rule Palestine 2020 max - Mar Sat>=24 0:00 1:00 S
d3474 2
a3475 1
Rule Palestine 2021 max - Oct lastFri 1:00 0 -
a3568 1
Link Asia/Qatar Asia/Bahrain
a3614 2
Link Asia/Riyadh Asia/Aden # Yemen
Link Asia/Riyadh Asia/Kuwait
a3870 2
Link Asia/Bangkok Asia/Phnom_Penh # Cambodia
Link Asia/Bangkok Asia/Vientiane # Laos
a3884 1
Link Asia/Dubai Asia/Muscat # Oman
d3979 4
a3982 1
# See Asia/Riyadh.
@
1.2
log
@
Cherry pick the important changes from tzdata2031b:
Samoa (Pacific/Apia) has cancelled summer time this year
(change effective last Sunday).
Jordan (Asia/Amman) has moved the start of summer time from
the last Thu/Fri in March to the last Thu/Fri in Feb
to begin next year (2022).
Some more of the non-controversial (and less important, mostly some
corrections to historical data) changes may follow soon.
@
text
@a36 3
# A reliable and entertaining source about time zones is
# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
#
d2749 1
a2749 1
# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html
a3387 5
# From Tim Parenti (2020-10-20):
# Predict future fall transitions at 01:00 on the Saturday preceding October's
# last Sunday (i.e., Sat>=24). This is consistent with our predictions since
# 2016, although the time of the change differed slightly in 2019.
d3400 11
d3446 2
a3447 1
Rule Palestine 2020 max - Oct Sat>=24 1:00 0 -
d3516 6
d3593 1
a3593 1
# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html
@
1.1
log
@Initial revision
@
text
@d1 2
d6 1
a6 1
# This data is by no means authoritative; if you think you know better,
d8 2
a9 1
# tz@@iana.org for general use in the future).
d11 1
a11 1
# From Paul Eggert (2013-08-11):
d13 1
a13 1
# A good source for time zone historical data outside the U.S. is
d16 1
d18 2
a19 2
# Gwillim Law writes that a good source
# for recent time zone data is the International Air Transport
d22 2
a23 4
# of the IATA's data after 1990.
#
# Except where otherwise noted, Shanks & Pottenger is the source for
# entries through 1990, and IATA SSIM is the source for entries afterwards.
d30 6
a35 2
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
# .
d40 2
a41 3
# I invented the abbreviations marked '*' in the following table;
# the rest are from earlier versions of this file, or from other sources.
# Corrections are welcome!
a45 3
# 3:00 AST ADT Arabia*
# 3:30 IRST IRDT Iran
# 4:00 GST Gulf*
a46 1
# 7:00 ICT Indochina*
d50 3
a52 2
# 8:00 JWST Western Standard Time (Japan, 1896/1937)*
# 9:00 JCST Central Standard Time (Japan, 1896/1937)
d55 6
a60 2
# 9:00 KST KDT Korea
# 9:30 ACST Australian Central Standard Time
d68 1
a68 1
# Worldwide Edition). The names for time zones are guesses.
d73 1
a73 1
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
d77 1
a77 1
Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 S
d80 1
a80 1
Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 S
d82 3
a84 7
Rule RussiaAsia 1984 1991 - Sep lastSun 2:00s 0 -
Rule RussiaAsia 1985 1991 - Mar lastSun 2:00s 1:00 S
Rule RussiaAsia 1992 only - Mar lastSat 23:00 1:00 S
Rule RussiaAsia 1992 only - Sep lastSat 23:00 0 -
Rule RussiaAsia 1993 max - Mar lastSun 2:00s 1:00 S
Rule RussiaAsia 1993 1995 - Sep lastSun 2:00s 0 -
Rule RussiaAsia 1996 max - Oct lastSun 2:00s 0 -
d87 1
a87 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d89 2
a90 2
4:00 - AFT 1945
4:30 - AFT
d117 4
a120 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d122 6
a127 7
3:00 - YERT 1957 Mar # Yerevan Time
4:00 RussiaAsia YER%sT 1991 Mar 31 2:00s
3:00 1:00 YERST 1991 Sep 23 # independence
3:00 RussiaAsia AM%sT 1995 Sep 24 2:00s
4:00 - AMT 1997
4:00 RussiaAsia AM%sT 2012 Mar 25 2:00s
4:00 - AMT
d130 1
d133 14
a146 5
# Resolution available at: http://aif.az/docs/daylight_res.pdf
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Azer 1997 max - Mar lastSun 4:00 1:00 S
Rule Azer 1997 max - Oct lastSun 5:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d148 6
a153 7
3:00 - BAKT 1957 Mar # Baku Time
4:00 RussiaAsia BAK%sT 1991 Mar 31 2:00s
3:00 1:00 BAKST 1991 Aug 30 # independence
3:00 RussiaAsia AZ%sT 1992 Sep lastSat 23:00
4:00 - AZT 1996 # Azerbaijan time
4:00 EUAsia AZ%sT 1997
4:00 Azer AZ%sT
d156 1
a156 4
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Bahrain 3:22:20 - LMT 1920 # Manamah
4:00 - GST 1972 Jun
3:00 - AST
d180 1
a180 1
# http://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601
d184 1
a184 1
# http://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html
d230 3
a232 3
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Dhaka 2009 only - Jun 19 23:00 1:00 S
Rule Dhaka 2009 only - Dec 31 23:59 0 -
d234 1
a234 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d237 5
a241 6
6:30 - BURT 1942 May 15 # Burma Time
5:30 - IST 1942 Sep
6:30 - BURT 1951 Sep 30
6:00 - DACT 1971 Mar 26 # Dacca Time
6:00 - BDT 2009
6:00 Dhaka BD%sT
d244 1
a244 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d246 2
a247 2
5:30 - IST 1987 Oct
6:00 - BTT # Bhutan Time
d255 1
a255 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d257 2
a258 2
5:00 - IOT 1996 # BIOT Time
6:00 - IOT
d261 4
a264 4
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
7:30 - BNT 1933
8:00 - BNT
d270 12
a281 6
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Rangoon 6:24:40 - LMT 1880 # or Yangon
6:24:40 - RMT 1920 # Rangoon Mean Time?
6:30 - BURT 1942 May # Burma Time
9:00 - JST 1945 May 3
6:30 - MMT # Myanmar Time
d284 2
a285 6
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jun 9
7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
7:00 - ICT 1912 May
8:00 - ICT 1931 May
7:00 - ICT
d289 127
d442 27
a468 12
# From Paul Eggert (2014-06-30):
# Shanks & Pottenger have China switching to a single time zone in 1980, but
# this doesn't seem to be correct. They also write that China observed summer
# DST from 1986 through 1991, which seems to match the above commentary, so
# go with them for DST rules as follows:
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Shang 1940 only - Jun 3 0:00 1:00 D
Rule Shang 1940 1941 - Oct 1 0:00 0 S
Rule Shang 1941 only - Mar 16 0:00 1:00 D
Rule PRC 1986 only - May 4 0:00 1:00 D
Rule PRC 1986 1991 - Sep Sun>=11 0:00 0 S
Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
d477 1
a477 1
# http://www.astro.com/atlas site [with provinces and county
d486 1
a486 1
# From Paul Eggert (2014-06-30):
d490 1
a490 1
# Guo Qingsheng (National Time-Service Center, CAS, Xi'an 710600, China)
d493 2
a494 1
# (Zhongguo ke ji shi liao, 中国科技史料), Vol. 24, No. 1 (2003)
d513 2
a514 2
# French docks in the 1890s, controled by Xujiahui (Zikawei)
# Obervatory and set to local mean time.
d535 1
a535 1
# Xujiahui Observatory was under French control and stuck with UT+8.
d538 1
a538 1
# this was based on what was apparently incorrect data in Shanks & Pottenger.
d544 2
a545 2
# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) UT+8.5
# Asia/Harbin (currently a link to Asia/Shanghai)
d548 2
a549 2
# Zhongyuan Time ("Central plain Time") UT+8
# Asia/Shanghai
a550 2
# This currently represents most other zones as well,
# as apparently these regions have been the same since 1970.
d552 1
a552 1
# Guo says Shanghai switched to UT+8 "from the end of the 19th century".
d554 2
a555 2
# Long-shu Time (probably due to Long and Shu being two names of that area) UT+7
# Asia/Chongqing (currently a link to Asia/Shanghai)
d557 1
a557 1
# most of Gansu; west Inner Mongolia; west Qinghai; and the Guangdong
d561 4
a564 4
# Xin-zang Time ("Xinjiang-Tibet Time") UT+6
# Asia/Urumqi
# This currently represents Kunlun Time as well,
# as apparently the two regions have been the same since 1970.
d574 2
a575 2
# Kunlun Time UT+5.5
# Asia/Kashgar (currently a link to Asia/Urumqi)
d590 1
a590 1
# hours behind Beijing time, or UTC +0600. The government of the Xinjiang
d630 1
a630 1
# http://content.time.com/time/magazine/article/0,9171,960684,00.html
d646 2
a647 2
# In the early days of the PRC, Tibet was given its own time zone (UT+6) but
# this was withdrawn in 1959 and never reinstated; see Tubten Khétsun,
d656 1
a656 1
# During the 20th century parts of Xinjiang were ruled by the Qing dyansty,
d661 1
a661 1
# XJT at the start of 1928, the year of accession of the warlord Jin Shuren,
d663 2
a664 2
# guess) as the transition from LMT. Ignore the usage of UT+8 before
# 1986-02-01 under the theory that the transition date to UT+8 is unknown and
d666 1
a666 1
# UT+8 mandate back then.
d668 1
a668 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d671 1
a671 1
8:00 Shang C%sT 1949
d676 1
a676 1
6:00 - XJT
d679 1
a679 1
# Hong Kong (Xianggang)
d689 110
a798 3
# think 3:30 is correct. The official DST record for Hong Kong can be
# obtained from
# http://www.hko.gov.hk/gts/time/Summertime.htm
d800 1
a800 1
# From Arthur David Olson (2009-10-28):
d802 2
a803 2
# http://www.hko.gov.hk/gts/time/Summertime.htm
# as of 2009-10-28:
d805 1
a805 1
# 1941 1 Apr to 30 Sep
d811 1
a811 1
# 1947 13 Apr to 30 Dec
d816 1
a816 1
# 1952 6 Apr to 25 Oct
d845 11
a855 17
# The page does not give start or end times of day.
# The page does not give a start date for 1942.
# The page does not givw an end date for 1945.
# The Japanese occupation of Hong Kong began on 1941-12-25.
# The Japanese surrender of Hong Kong was signed 1945-09-15.
# For lack of anything better, use start of those days as the transition times.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule HK 1941 only - Apr 1 3:30 1:00 S
Rule HK 1941 only - Sep 30 3:30 0 -
Rule HK 1946 only - Apr 20 3:30 1:00 S
Rule HK 1946 only - Dec 1 3:30 0 -
Rule HK 1947 only - Apr 13 3:30 1:00 S
Rule HK 1947 only - Dec 30 3:30 0 -
Rule HK 1948 only - May 2 3:30 1:00 S
Rule HK 1948 1951 - Oct lastSun 3:30 0 -
Rule HK 1952 only - Oct 25 3:30 0 -
d857 1
a857 1
Rule HK 1953 only - Nov 1 3:30 0 -
a858 2
Rule HK 1954 only - Oct 31 3:30 0 -
Rule HK 1955 1964 - Nov Sun>=1 3:30 0 -
d862 8
a869 6
Rule HK 1979 only - May Sun>=8 3:30 1:00 S
Rule HK 1979 only - Oct Sun>=16 3:30 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30
8:00 HK HK%sT 1941 Dec 25
9:00 - JST 1945 Sep 15
d888 1
a888 1
# http://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
d899 1
a899 1
# (UTC+9). The adoption began on Oct 1, 1937. The original text can
d901 1
a901 1
# http://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
d903 1
a903 1
# That is, the time zone of Taipei switched to UTC+9 on Oct 1, 1937.
d906 2
a907 2
# I've found more evidence about when the time zone was switched from UTC+9
# back to UTC+8 after WW2. I believe it was on Sep 21, 1945. In a document
d909 1
a909 1
# zone back to Western Standard Time (UTC+8) on Sep 21. And in another
d954 2
a955 2
#
# (cont.)
d960 1
a960 1
#
d966 1
a966 1
# adption till Oct 31 midnight.
d972 1
a972 1
# As per Yu-Cheng Chuang, say that Taiwan was at UT+9 from 1937-10-01
d976 1
a976 1
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
d993 1
a993 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d996 2
a997 2
8:00 - JWST 1937 Oct 1
9:00 - JST 1945 Sep 21 01:00
d1001 135
a1135 19
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Macau 1961 1962 - Mar Sun>=16 3:30 1:00 S
Rule Macau 1961 1964 - Nov Sun>=1 3:30 0 -
Rule Macau 1963 only - Mar Sun>=16 0:00 1:00 S
Rule Macau 1964 only - Mar Sun>=16 3:30 1:00 S
Rule Macau 1965 only - Mar Sun>=16 0:00 1:00 S
Rule Macau 1965 only - Oct 31 0:00 0 -
Rule Macau 1966 1971 - Apr Sun>=16 3:30 1:00 S
Rule Macau 1966 1971 - Oct Sun>=16 3:30 0 -
Rule Macau 1972 1974 - Apr Sun>=15 0:00 1:00 S
Rule Macau 1972 1973 - Oct Sun>=15 0:00 0 -
Rule Macau 1974 1977 - Oct Sun>=15 3:30 0 -
Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 S
Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 S
Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Macau 7:34:20 - LMT 1912
8:00 Macau MO%sT 1999 Dec 20 # return to China
8:00 PRC C%sT
d1141 1
a1141 1
#
d1143 18
a1160 2
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
d1170 1
a1170 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d1174 5
a1178 1
# IATA SSIM (1998-09) has Cyprus using EU rules for the first time.
d1215 16
a1230 15
# Milne says Tbilisi (Tiflis) time was 2:59:05.7; round to nearest.)
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Tbilisi 2:59:06 - LMT 1880
2:59:06 - TBMT 1924 May 2 # Tbilisi Mean Time
3:00 - TBIT 1957 Mar # Tbilisi Time
4:00 RussiaAsia TBI%sT 1991 Mar 31 2:00s
3:00 1:00 TBIST 1991 Apr 9 # independence
3:00 RussiaAsia GE%sT 1992 # Georgia Time
3:00 E-EurAsia GE%sT 1994 Sep lastSun
4:00 E-EurAsia GE%sT 1996 Oct lastSun
4:00 1:00 GEST 1997 Mar lastSun
4:00 E-EurAsia GE%sT 2004 Jun 27
3:00 RussiaAsia GE%sT 2005 Mar lastSun 2:00
4:00 - GET
d1238 1
a1238 1
# (1999-12-26/31):
d1256 6
a1261 7
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Dili 8:22:20 - LMT 1912
8:00 - TLT 1942 Feb 21 23:00 # E Timor Time
9:00 - JST 1945 Sep 23
9:00 - TLT 1976 May 3
8:00 - WITA 2000 Sep 17 00:00
9:00 - TLT
d1264 64
a1327 4
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata
5:53:20 - HMT 1941 Oct # Howrah Mean Time?
6:30 - BURT 1942 May 15 # Burma Time
d1329 1
a1329 1
5:30 1:00 IST 1945 Oct 15
d1331 1
a1331 1
# The following are like Asia/Kolkata:
d1338 4
d1343 1
a1343 1
#
d1357 1
a1357 1
# from JST to UTC+07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura
d1368 1
a1368 1
# The abbreviations are:
d1370 3
a1372 3
# WIB - UTC+7 - Waktu Indonesia Barat (Indonesia western time)
# WITA - UTC+8 - Waktu Indonesia Tengah (Indonesia central time)
# WIT - UTC+9 - Waktu Indonesia Timur (Indonesia eastern time)
d1374 1
a1374 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d1380 6
a1385 6
7:20 - JAVT 1932 Nov # Java Time
7:30 - WIB 1942 Mar 23
9:00 - JST 1945 Sep 23
7:30 - WIB 1948 May
8:00 - WIB 1950 May
7:30 - WIB 1964
d1390 5
a1394 5
7:30 - WIB 1942 Jan 29
9:00 - JST 1945 Sep 23
7:30 - WIB 1948 May
8:00 - WIB 1950 May
7:30 - WIB 1964
d1400 2
a1401 2
8:00 - WITA 1942 Feb 9
9:00 - JST 1945 Sep 23
d1405 2
a1406 2
9:00 - WIT 1944 Sep 1
9:30 - ACST 1964
a1437 2
# I have also changed the abbreviations to what is considered correct
# here in Iran, IRST for regular time and IRDT for daylight saving time.
d1445 1
a1445 1
# From Paul Eggert (2006-03-22):
d1447 57
a1503 4
# I used Ed Reingold's cal-persia in GNU Emacs 21.2 to check Persian dates,
# stopping after 2037 when 32-bit time_t's overflow.
# That cal-persia used Birashk's approximation, which disagrees with the solar
# calendar predictions for the year 2025, so I corrected those dates by hand.
d1526 1
a1526 1
# http://uk.reuters.com/article/oilRpt/idUKBLA65048420070916
d1530 1
a1530 1
# Iran, Volume 63, Number 18242, dated Tuesday 1386/6/24
d1537 110
a1646 51
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Iran 1978 1980 - Mar 21 0:00 1:00 D
Rule Iran 1978 only - Oct 21 0:00 0 S
Rule Iran 1979 only - Sep 19 0:00 0 S
Rule Iran 1980 only - Sep 23 0:00 0 S
Rule Iran 1991 only - May 3 0:00 1:00 D
Rule Iran 1992 1995 - Mar 22 0:00 1:00 D
Rule Iran 1991 1995 - Sep 22 0:00 0 S
Rule Iran 1996 only - Mar 21 0:00 1:00 D
Rule Iran 1996 only - Sep 21 0:00 0 S
Rule Iran 1997 1999 - Mar 22 0:00 1:00 D
Rule Iran 1997 1999 - Sep 22 0:00 0 S
Rule Iran 2000 only - Mar 21 0:00 1:00 D
Rule Iran 2000 only - Sep 21 0:00 0 S
Rule Iran 2001 2003 - Mar 22 0:00 1:00 D
Rule Iran 2001 2003 - Sep 22 0:00 0 S
Rule Iran 2004 only - Mar 21 0:00 1:00 D
Rule Iran 2004 only - Sep 21 0:00 0 S
Rule Iran 2005 only - Mar 22 0:00 1:00 D
Rule Iran 2005 only - Sep 22 0:00 0 S
Rule Iran 2008 only - Mar 21 0:00 1:00 D
Rule Iran 2008 only - Sep 21 0:00 0 S
Rule Iran 2009 2011 - Mar 22 0:00 1:00 D
Rule Iran 2009 2011 - Sep 22 0:00 0 S
Rule Iran 2012 only - Mar 21 0:00 1:00 D
Rule Iran 2012 only - Sep 21 0:00 0 S
Rule Iran 2013 2015 - Mar 22 0:00 1:00 D
Rule Iran 2013 2015 - Sep 22 0:00 0 S
Rule Iran 2016 only - Mar 21 0:00 1:00 D
Rule Iran 2016 only - Sep 21 0:00 0 S
Rule Iran 2017 2019 - Mar 22 0:00 1:00 D
Rule Iran 2017 2019 - Sep 22 0:00 0 S
Rule Iran 2020 only - Mar 21 0:00 1:00 D
Rule Iran 2020 only - Sep 21 0:00 0 S
Rule Iran 2021 2023 - Mar 22 0:00 1:00 D
Rule Iran 2021 2023 - Sep 22 0:00 0 S
Rule Iran 2024 only - Mar 21 0:00 1:00 D
Rule Iran 2024 only - Sep 21 0:00 0 S
Rule Iran 2025 2027 - Mar 22 0:00 1:00 D
Rule Iran 2025 2027 - Sep 22 0:00 0 S
Rule Iran 2028 2029 - Mar 21 0:00 1:00 D
Rule Iran 2028 2029 - Sep 21 0:00 0 S
Rule Iran 2030 2031 - Mar 22 0:00 1:00 D
Rule Iran 2030 2031 - Sep 22 0:00 0 S
Rule Iran 2032 2033 - Mar 21 0:00 1:00 D
Rule Iran 2032 2033 - Sep 21 0:00 0 S
Rule Iran 2034 2035 - Mar 22 0:00 1:00 D
Rule Iran 2034 2035 - Sep 22 0:00 0 S
Rule Iran 2036 2037 - Mar 21 0:00 1:00 D
Rule Iran 2036 2037 - Sep 21 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d1648 4
a1651 4
3:25:44 - TMT 1946 # Tehran Mean Time
3:30 - IRST 1977 Nov
4:00 Iran IR%sT 1979
3:30 Iran IR%sT
d1677 1
a1677 1
# http://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
d1679 7
a1685 7
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Iraq 1982 only - May 1 0:00 1:00 D
Rule Iraq 1982 1984 - Oct 1 0:00 0 S
Rule Iraq 1983 only - Mar 31 0:00 1:00 D
Rule Iraq 1984 1985 - Apr 1 0:00 1:00 D
Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 S
Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 D
d1689 3
a1691 3
Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 D
Rule Iraq 1991 2007 - Oct 1 3:00s 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d1693 3
a1695 3
2:57:36 - BMT 1918 # Baghdad Mean Time?
3:00 - AST 1982 May
3:00 Iraq A%sT
d1702 4
d1726 197
a1922 40
# From Shanks & Pottenger:
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 1940 only - Jun 1 0:00 1:00 D
Rule Zion 1942 1944 - Nov 1 0:00 0 S
Rule Zion 1943 only - Apr 1 2:00 1:00 D
Rule Zion 1944 only - Apr 1 0:00 1:00 D
Rule Zion 1945 only - Apr 16 0:00 1:00 D
Rule Zion 1945 only - Nov 1 2:00 0 S
Rule Zion 1946 only - Apr 16 2:00 1:00 D
Rule Zion 1946 only - Nov 1 0:00 0 S
Rule Zion 1948 only - May 23 0:00 2:00 DD
Rule Zion 1948 only - Sep 1 0:00 1:00 D
Rule Zion 1948 1949 - Nov 1 2:00 0 S
Rule Zion 1949 only - May 1 0:00 1:00 D
Rule Zion 1950 only - Apr 16 0:00 1:00 D
Rule Zion 1950 only - Sep 15 3:00 0 S
Rule Zion 1951 only - Apr 1 0:00 1:00 D
Rule Zion 1951 only - Nov 11 3:00 0 S
Rule Zion 1952 only - Apr 20 2:00 1:00 D
Rule Zion 1952 only - Oct 19 3:00 0 S
Rule Zion 1953 only - Apr 12 2:00 1:00 D
Rule Zion 1953 only - Sep 13 3:00 0 S
Rule Zion 1954 only - Jun 13 0:00 1:00 D
Rule Zion 1954 only - Sep 12 0:00 0 S
Rule Zion 1955 only - Jun 11 2:00 1:00 D
Rule Zion 1955 only - Sep 11 0:00 0 S
Rule Zion 1956 only - Jun 3 0:00 1:00 D
Rule Zion 1956 only - Sep 30 3:00 0 S
Rule Zion 1957 only - Apr 29 2:00 1:00 D
Rule Zion 1957 only - Sep 22 0:00 0 S
Rule Zion 1974 only - Jul 7 0:00 1:00 D
Rule Zion 1974 only - Oct 13 0:00 0 S
Rule Zion 1975 only - Apr 20 0:00 1:00 D
Rule Zion 1975 only - Aug 31 0:00 0 S
Rule Zion 1985 only - Apr 14 0:00 1:00 D
Rule Zion 1985 only - Sep 15 0:00 0 S
Rule Zion 1986 only - May 18 0:00 1:00 D
Rule Zion 1986 only - Sep 7 0:00 0 S
Rule Zion 1987 only - Apr 15 0:00 1:00 D
Rule Zion 1987 only - Sep 13 0:00 0 S
d1928 2
a1929 2
Rule Zion 1988 only - Apr 10 0:00 1:00 D
Rule Zion 1988 only - Sep 4 0:00 0 S
d1958 9
a1966 9
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 1989 only - Apr 30 0:00 1:00 D
Rule Zion 1989 only - Sep 3 0:00 0 S
Rule Zion 1990 only - Mar 25 0:00 1:00 D
Rule Zion 1990 only - Aug 26 0:00 0 S
Rule Zion 1991 only - Mar 24 0:00 1:00 D
Rule Zion 1991 only - Sep 1 0:00 0 S
Rule Zion 1992 only - Mar 29 0:00 1:00 D
Rule Zion 1992 only - Sep 6 0:00 0 S
d1974 1
a1974 1
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
d1994 5
a1998 5
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 1996 only - Mar 15 0:00 1:00 D
Rule Zion 1996 only - Sep 16 0:00 0 S
Rule Zion 1997 only - Mar 21 0:00 1:00 D
Rule Zion 1997 only - Sep 14 0:00 0 S
d2017 1
a2017 1
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
d2039 2
a2040 16
# From Paul Eggert (2012-10-26):
# I used Ephraim Silverberg's dst-israel.el program
# (2005-02-20)
# along with Ed Reingold's cal-hebrew in GNU Emacs 21.4,
# to generate the transitions from 2005 through 2012.
# (I replaced "lastFri" with "Fri>=26" by hand.)
# The spring transitions all correspond to the following Rule:
#
# Rule Zion 2005 2012 - Mar Fri>=26 2:00 1:00 D
#
# but older zic implementations (e.g., Solaris 8) do not support
# "Fri>=26" to mean April 1 in years like 2005, so for now we list the
# springtime transitions explicitly.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 2005 only - Apr 1 2:00 1:00 D
a2041 1
Rule Zion 2006 2010 - Mar Fri>=26 2:00 1:00 D
a2046 1
Rule Zion 2011 only - Apr 1 2:00 1:00 D
a2047 1
Rule Zion 2012 only - Mar Fri>=26 2:00 1:00 D
d2050 9
a2058 8
# From Ephraim Silverberg (2013-06-27):
# On June 23, 2013, the Israeli government approved changes to the
# Time Decree Law. The next day, the changes passed the First Reading
# in the Knesset. The law is expected to pass the Second and Third
# (final) Readings by the beginning of September 2013.
#
# As of 2013, DST starts at 02:00 on the Friday before the last Sunday
# in March. DST ends at 02:00 on the last Sunday of October.
d2060 1
a2060 1
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
d2064 1
a2064 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d2066 1
a2066 1
2:20:40 - JMT 1918 # Jerusalem Mean Time?
d2077 9
a2085 27
# From Paul Eggert (1995-03-06):
# Today's _Asahi Evening News_ (page 4) reports that Japan had
# daylight saving between 1948 and 1951, but "the system was discontinued
# because the public believed it would lead to longer working hours."
# From Mayumi Negishi in the 2005-08-10 Japan Times
# :
# Occupation authorities imposed daylight-saving time on Japan on
# [1948-05-01].... But lack of prior debate and the execution of
# daylight-saving time just three days after the bill was passed generated
# deep hatred of the concept.... The Diet unceremoniously passed a bill to
# dump the unpopular system in October 1951, less than a month after the San
# Francisco Peace Treaty was signed. (A government poll in 1951 showed 53%
# of the Japanese wanted to scrap daylight-saving time, as opposed to 30% who
# wanted to keep it.)
# From Paul Eggert (2006-03-22):
# Shanks & Pottenger write that DST in Japan during those years was as follows:
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Japan 1948 only - May Sun>=1 2:00 1:00 D
Rule Japan 1948 1951 - Sep Sat>=8 2:00 0 S
Rule Japan 1949 only - Apr Sun>=1 2:00 1:00 D
Rule Japan 1950 1951 - May Sun>=1 2:00 1:00 D
# but the only locations using it (for birth certificates, presumably, since
# their audience is astrologers) were US military bases. For now, assume
# that for most purposes daylight-saving time was observed; otherwise, what
# would have been the point of the 1951 poll?
d2089 1
a2089 1
# Observatory: 139 degrees 44' 40.90" E (9h 18m 58.727s), 35 degrees 39' 16.0" N.
d2097 1
a2097 1
# which stands for the time on 135 degrees E.
d2100 1
a2100 1
# time", which stands for the time on 120 degrees E.... But "western standard
d2111 1
a2111 1
# http://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
d2115 7
a2121 2
# Central Time (UTC+9). The adoption began on Oct 1, 1937.
# http://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
d2123 44
a2166 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
a2167 2
9:00 - JST 1896 Jan 1
9:00 - JCST 1937 Oct 1
d2169 3
a2171 1
# Since 1938, all Japanese possessions have been like Asia/Tokyo.
d2228 1
a2228 1
# http://www.timeanddate.com/news/time/jordan-reverses-dst-decision.html
d2237 9
a2245 1
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
d2275 1
a2275 1
Rule Jordan 2014 max - Mar lastThu 24:00 1:00 S
d2277 2
a2278 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d2285 1
a2285 18
# From Paul Eggert (1996-11-22):
# Andrew Evtichov (1996-04-13) writes that Kazakhstan
# stayed in sync with Moscow after 1990, and that Aqtobe (formerly Aktyubinsk)
# and Aqtau (formerly Shevchenko) are the largest cities in their zones.
# Guess that Aqtau and Aqtobe diverged in 1995, since that's the first time
# IATA SSIM mentions a third time zone in Kazakhstan.
# From Paul Eggert (2006-03-22):
# German Iofis, ELSI, Almaty (2001-10-09) reports that Kazakhstan uses
# RussiaAsia rules, instead of switching at 00:00 as the IATA has it.
# Go with Shanks & Pottenger, who have them always using RussiaAsia rules.
# Also go with the following claims of Shanks & Pottenger:
#
# - Kazakhstan did not observe DST in 1991.
# - Qyzylorda switched from +5:00 to +6:00 on 1992-01-19 02:00.
# - Oral switched from +5:00 to +4:00 in spring 1989.
# From Kazakhstan Embassy's News Bulletin #11
d2296 2
a2297 2
# same), encompassing four provinces in the west: Aqtobe, Atyrau,
# Mangghystau, and West Kazakhstan. The other zone encompasses
d2301 175
a2475 2
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d2478 2
d2481 6
a2486 6
5:00 - ALMT 1930 Jun 21 # Alma-Ata Time
6:00 RussiaAsia ALM%sT 1991
6:00 - ALMT 1992
6:00 RussiaAsia ALM%sT 2005 Mar 15
6:00 - ALMT
# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.)
d2488 26
a2513 10
4:00 - KIZT 1930 Jun 21 # Kizilorda Time
5:00 - KIZT 1981 Apr 1
5:00 1:00 KIZST 1981 Oct 1
6:00 - KIZT 1982 Apr 1
5:00 RussiaAsia KIZ%sT 1991
5:00 - KIZT 1991 Dec 16 # independence
5:00 - QYZT 1992 Jan 19 2:00
6:00 RussiaAsia QYZ%sT 2005 Mar 15
6:00 - QYZT
# Aqtobe (aka Aktobe, formerly Akt'ubinsk)
d2515 9
a2523 9
4:00 - AKTT 1930 Jun 21 # Aktyubinsk Time
5:00 - AKTT 1981 Apr 1
5:00 1:00 AKTST 1981 Oct 1
6:00 - AKTT 1982 Apr 1
5:00 RussiaAsia AKT%sT 1991
5:00 - AKTT 1991 Dec 16 # independence
5:00 RussiaAsia AQT%sT 2005 Mar 15 # Aqtobe Time
5:00 - AQTT
# Mangghystau
d2525 1
a2525 1
# so include time stamps before 1963.
d2527 22
a2548 10
4:00 - FORT 1930 Jun 21 # Fort Shevchenko T
5:00 - FORT 1963
5:00 - SHET 1981 Oct 1 # Shevchenko Time
6:00 - SHET 1982 Apr 1
5:00 RussiaAsia SHE%sT 1991
5:00 - SHET 1991 Dec 16 # independence
5:00 RussiaAsia AQT%sT 1995 Mar lastSun 2:00 # Aqtau Time
4:00 RussiaAsia AQT%sT 2005 Mar 15
5:00 - AQTT
# West Kazakhstan
d2550 9
a2558 9
4:00 - URAT 1930 Jun 21 # Ural'sk time
5:00 - URAT 1981 Apr 1
5:00 1:00 URAST 1981 Oct 1
6:00 - URAT 1982 Apr 1
5:00 RussiaAsia URA%sT 1989 Mar 26 2:00
4:00 RussiaAsia URA%sT 1991
4:00 - URAT 1991 Dec 16 # independence
4:00 RussiaAsia ORA%sT 2005 Mar 15 # Oral Time
5:00 - ORAT
d2565 1
a2565 1
#
d2572 2
a2573 2
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 S
d2575 1
a2575 1
Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 S
d2577 1
a2577 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d2579 5
a2583 5
5:00 - FRUT 1930 Jun 21 # Frunze Time
6:00 RussiaAsia FRU%sT 1991 Mar 31 2:00s
5:00 1:00 FRUST 1991 Aug 31 2:00 # independence
5:00 Kyrgyz KG%sT 2005 Aug 12 # Kyrgyzstan Time
6:00 - KGT
d2589 68
a2656 17
# From Annie I. Bang (2006-07-10) in
# :
# The Ministry of Commerce, Industry and Energy has already
# commissioned a research project [to reintroduce DST] and has said
# the system may begin as early as 2008.... Korea ran a daylight
# saving program from 1949-61 but stopped it during the 1950-53 Korean War.
# From Shanks & Pottenger:
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule ROK 1960 only - May 15 0:00 1:00 D
Rule ROK 1960 only - Sep 13 0:00 0 S
Rule ROK 1987 1988 - May Sun>=8 0:00 1:00 D
Rule ROK 1987 1988 - Oct Sun>=8 0:00 0 S
# From Paul Eggert (2014-07-01):
# The following entries are from Shanks & Pottenger, except that I
# guessed that time zone abbreviations through 1945 followed the same
d2659 3
d2663 32
a2694 6
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Seoul 8:27:52 - LMT 1890
8:30 - KST 1904 Dec
9:00 - JCST 1928
8:30 - KST 1932
9:00 - JCST 1937 Oct 1
d2696 2
a2697 3
9:00 - KST 1954 Mar 21
8:00 ROK K%sT 1961 Aug 10
8:30 - KST 1968 Oct
d2699 2
a2700 5
Zone Asia/Pyongyang 8:23:00 - LMT 1890
8:30 - KST 1904 Dec
9:00 - JCST 1928
8:30 - KST 1932
9:00 - JCST 1937 Oct 1
d2702 2
a2703 2
9:00 - KST 1954 Mar 21
8:00 - KST 1961 Aug 10
d2709 1
a2709 3
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kuwait 3:11:56 - LMT 1950
3:00 - AST
d2712 2
a2713 6
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Vientiane 6:50:24 - LMT 1906 Jun 9 # or Viangchan
7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
7:00 - ICT 1912 May
8:00 - ICT 1931 May
7:00 - ICT
d2716 1
a2716 1
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
d2741 1
a2741 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d2746 2
a2747 2
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 TS # one-Third Summer
d2751 3
a2753 3
# The data here are taken from Mok Ly Yng (2003-10-30)
# .
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d2756 7
a2762 7
7:00 - MALT 1933 Jan 1 # Malaya Time
7:00 0:20 MALST 1936 Jan 1
7:20 - MALT 1941 Sep 1
7:30 - MALT 1942 Feb 16
9:00 - JST 1945 Sep 12
7:30 - MALT 1982 Jan 1
8:00 - MYT # Malaysia Time
d2764 4
a2767 4
# From Paul Eggert (2006-03-22):
# The data here are mostly from Shanks & Pottenger, but the 1942, 1945 and 1982
# transition dates are from Mok Ly Yng.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d2769 4
a2772 5
7:30 - BORT 1933 # Borneo Time
8:00 NBorneo BOR%sT 1942 Feb 16
9:00 - JST 1945 Sep 12
8:00 - BORT 1982 Jan 1
8:00 - MYT
d2775 4
a2778 4
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
4:54:00 - MMT 1960 # Male Mean Time
5:00 - MVT # Maldives Time
d2836 1
a2836 1
# travelmongolia.org says there are two time zones (UTC+7, UTC+8) with no DST.
d2840 1
a2840 1
#
d2860 1
a2860 1
# http://www.timeanddate.com/worldclock/city.html?n=1026
d2884 9
a2892 2
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Mongol 1983 1984 - Apr 1 0:00 1:00 S
d2905 5
a2909 1
Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 S
d2912 1
a2912 1
Rule Mongol 2001 only - Apr lastSat 2:00 1:00 S
d2914 3
a2916 1
Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 S
d2918 1
a2918 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d2921 2
a2922 2
6:00 - HOVT 1978 # Hovd Time
7:00 Mongol HOV%sT
d2925 3
a2927 3
7:00 - ULAT 1978 # Ulaanbaatar Time
8:00 Mongol ULA%sT
# Choibalsan, a.k.a. Bajan Tuemen, Bajan Tumen, Chojbalsan,
d2930 4
a2933 4
7:00 - ULAT 1978
8:00 - ULAT 1983 Apr
9:00 Mongol CHO%sT 2008 Mar 31 # Choibalsan Time
8:00 Mongol CHO%sT
d2936 1
a2936 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d2938 2
a2939 2
5:30 - IST 1986
5:45 - NPT # Nepal Time
d2942 1
a2942 6
# Milne says 3:54:24 was the meridian of the Muscat Tidal Observatory.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Muscat 3:54:24 - LMT 1920
4:00 - GST
d2986 3
a2988 4
# "... The federal cabinet on Wednesday announced a new conservation plan to help
# reduce load shedding by approving the closure of commercial centres at 9pm and
# moving clocks forward by one hour for the next three months.
# ...."
d2990 1
a2990 1
# http://www.worldtimezone.net/dst_news/dst_news_pakistan01.html
d3035 2
a3036 2
# Pakistan clocks across the country would be turned back by an hour from October
# 1, 2009.
d3041 1
a3041 1
a3042 5
# Alexander Krivenyshev wrote:
# > According to Associated Press Of Pakistan, it is confirmed that
# > Pakistan clocks across the country would be turned back by an hour from October
# > 1, 2009.
#
d3056 1
a3056 1
# http://www.timeanddate.com/news/time/pakistan-ends-dst09.html
d3079 3
a3081 3
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Pakistan 2002 only - Apr Sun>=2 0:01 1:00 S
Rule Pakistan 2002 only - Oct Sun>=2 0:01 0 -
d3083 1
a3083 1
Rule Pakistan 2008 only - Nov 1 0:00 0 -
a3084 1
Rule Pakistan 2009 only - Nov 1 0:00 0 -
d3086 1
a3086 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d3088 4
a3091 4
5:30 - IST 1942 Sep
5:30 1:00 IST 1945 Oct 15
5:30 - IST 1951 Sep 30
5:00 - KART 1971 Mar 26 # Karachi Time
d3159 1
a3159 1
#
d3238 1
a3238 1
# http://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html
d3276 1
a3276 1
# http://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html
d3286 1
a3286 1
# http://www.timeanddate.com/news/time/palestine-dst-2011.html
d3296 1
a3296 1
# http://www.jpost.com/MiddleEast/Article.aspx?id=235650
d3317 1
a3317 1
# http://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html
d3335 72
a3406 7
# From Paul Eggert (2013-09-24):
# For future dates, guess the last Thursday in March at 24:00 through
# the first Friday on or after September 21 at 00:00. This is consistent with
# the predictions in today's editions of the following URLs,
# which are for Gaza and Hebron respectively:
# http://www.timeanddate.com/worldclock/timezone.html?n=702
# http://www.timeanddate.com/worldclock/timezone.html?n=2364
d3408 1
a3408 1
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
d3422 1
a3422 1
Rule Palestine 2007 only - Sep Thu>=8 2:00 0 -
d3425 1
a3425 1
Rule Palestine 2009 only - Sep Fri>=1 1:00 0 -
d3432 1
a3432 1
Rule Palestine 2012 max - Mar lastThu 24:00 1:00 S
d3434 10
a3443 1
Rule Palestine 2013 max - Sep Fri>=21 0:00 0 -
d3445 1
a3445 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d3447 1
a3447 1
2:00 Zion EET 1948 May 15
d3451 1
a3451 1
2:00 Palestine EE%sT 2008 Aug 29 0:00
d3454 1
a3454 1
2:00 - EET 2010 Mar 27 0:01
d3460 1
a3460 1
2:00 Zion EET 1948 May 15
d3470 5
d3479 2
a3480 2
# .
# The rest of the data are from Shanks & Pottenger.
a3481 7
# From Paul Eggert (2006-04-25):
# Tomorrow's Manila Standard reports that the Philippines Department of
# Trade and Industry is considering adopting DST this June when the
# rainy season begins. See
# .
# For now, we'll ignore this, since it's not definite and we lack details.
#
d3488 32
a3519 8
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Phil 1936 only - Nov 1 0:00 1:00 S
Rule Phil 1937 only - Feb 1 0:00 0 -
Rule Phil 1954 only - Apr 12 0:00 1:00 S
Rule Phil 1954 only - Jul 1 0:00 0 -
Rule Phil 1978 only - Mar 22 0:00 1:00 S
Rule Phil 1978 only - Sep 21 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d3522 1
a3522 1
8:00 Phil PH%sT 1942 May
d3524 1
a3524 1
8:00 Phil PH%sT
d3527 5
a3531 4
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha
4:00 - GST 1972 Jun
3:00 - AST
d3535 1
a3535 1
# From Paul Eggert (2014-07-15):
d3537 1
a3537 1
# standardized until relatively recently; we don't know when, and possibly it
d3544 19
d3571 3
a3573 2
# time zones; the other zone, at UTC+4, was in the far eastern part of
# the country. Ignore this, as it's before our 1970 cutoff.
d3575 1
a3575 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d3577 3
a3579 1
3:00 - AST
d3582 3
a3584 3
# The data here are taken from Mok Ly Yng (2003-10-30)
# .
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d3587 7
a3593 8
7:00 - MALT 1933 Jan 1 # Malaya Time
7:00 0:20 MALST 1936 Jan 1
7:20 - MALT 1941 Sep 1
7:30 - MALT 1942 Feb 16
9:00 - JST 1945 Sep 12
7:30 - MALT 1965 Aug 9 # independence
7:30 - SGT 1982 Jan 1 # Singapore Time
8:00 - SGT
d3625 1
a3625 1
#
d3633 14
a3646 28
# From K Sethu (2006-04-25):
# I think the abbreviation LKT originated from the world of computers at
# the time of or subsequent to the time zone changes by SL Government
# twice in 1996 and probably SL Government or its standardization
# agencies never declared an abbreviation as a national standard.
#
# I recollect before the recent change the government announcements
# mentioning it as simply changing Sri Lanka Standard Time or Sri Lanka
# Time and no mention was made about the abbreviation.
#
# If we look at Sri Lanka Department of Government's "Official News
# Website of Sri Lanka" ... http://www.news.lk/ we can see that they
# use SLT as abbreviation in time stamp at the beginning of each news
# item....
#
# Within Sri Lanka I think LKT is well known among computer users and
# administrators. In my opinion SLT may not be a good choice because the
# nation's largest telcom / internet operator Sri Lanka Telcom is well
# known by that abbreviation - simply as SLT (there IP domains are
# slt.lk and sltnet.lk).
#
# But if indeed our government has adopted SLT as standard abbreviation
# (that we have not known so far) then it is better that it be used for
# all computers.
# From Paul Eggert (2006-04-25):
# One possibility is that we wait for a bit for the dust to settle down
# and then see what people actually say in practice.
d3648 1
a3648 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d3650 8
a3657 8
5:19:32 - MMT 1906 # Moratuwa Mean Time
5:30 - IST 1942 Jan 5
5:30 0:30 IHST 1942 Sep
5:30 1:00 IST 1945 Oct 16 2:00
5:30 - IST 1996 May 25 0:00
6:30 - LKT 1996 Oct 26 0:30
6:00 - LKT 2006 Apr 15 0:30
5:30 - IST
d3660 1
a3660 1
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
d3732 1
a3732 2
# this month (March 2008) in the last day or so...This is the data IATA
# are now using:
d3779 1
a3779 1
# http://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html
d3806 1
a3806 1
# http://www.timeanddate.com/news/time/syria-dst-2012.html
d3818 2
a3819 2
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq
d3824 1
a3824 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d3826 4
a3829 4
5:00 - DUST 1930 Jun 21 # Dushanbe Time
6:00 RussiaAsia DUS%sT 1991 Mar 31 2:00s
5:00 1:00 DUSST 1991 Sep 9 2:00s
5:00 - TJT # Tajikistan Time
d3832 1
a3832 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d3835 3
a3837 1
7:00 - ICT
d3841 1
a3841 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d3843 4
a3846 5
4:00 - ASHT 1930 Jun 21 # Ashkhabad Time
5:00 RussiaAsia ASH%sT 1991 Mar 31 2:00
4:00 RussiaAsia ASH%sT 1991 Oct 27 # independence
4:00 RussiaAsia TM%sT 1992 Jan 19 2:00
5:00 - TMT
d3849 1
a3849 1
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
d3851 2
a3852 1
4:00 - GST
d3855 9
a3863 9
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Samarkand 4:27:12 - LMT 1924 May 2
4:00 - SAMT 1930 Jun 21 # Samarkand Time
5:00 - SAMT 1981 Apr 1
5:00 1:00 SAMST 1981 Oct 1
6:00 - TAST 1982 Apr 1 # Tashkent Time
5:00 RussiaAsia SAM%sT 1991 Sep 1 # independence
5:00 RussiaAsia UZ%sT 1992
5:00 - UZT
d3866 4
a3869 5
5:00 - TAST 1930 Jun 21 # Tashkent Time
6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00
5:00 RussiaAsia TAS%sT 1991 Sep 1 # independence
5:00 RussiaAsia UZ%sT 1992
5:00 - UZT
d3873 1
a3873 1
# From Paul Eggert (2013-02-21):
d3877 1
a3877 1
# and Pottenger.
d3883 62
a3944 7
# From Shanks & Pottenger:
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jun 9
7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
7:00 - ICT 1912 May
8:00 - ICT 1931 May
7:00 - ICT
d3947 1
a3947 7
# Milne says 2:59:54 was the meridian of the saluting battery at Aden,
# and that Yemen was at 1:55:56, the meridian of the Hagia Sophia.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Aden 2:59:54 - LMT 1950
3:00 - AST
@
1.1.1.1
log
@Import tzdata2014f from ftp://ftp.iana.org/tz/releases/tzdata2014f.tar.gz
and NEWS file from https://github.com/eggert/tz/raw/2014f/NEWS.
NetBSD's tzdata code is being moved from src/share/zoneinfo to
src/external/public-domain/tz/dist, to simplify future maintenance.
This is the same version of tzata that was previously imported to
src/share/zoneinfo. The NEWS file has been added to the import,
although it is not distributed in the tzdata2014f.tar.gz file.
@
text
@@
1.1.1.1.4.1
log
@Pull up following revision(s) (requested by apb in ticket #107):
doc/3RDPARTY: patch
external/public-domain/tz/tzdata2netbsd: patch
external/public-domain/tz/dist/CONTRIBUTING: patch
external/public-domain/tz/dist/Makefile: patch
external/public-domain/tz/dist/NEWS: patch
external/public-domain/tz/dist/README: patch
external/public-domain/tz/dist/Theory: patch
external/public-domain/tz/dist/africa: patch
external/public-domain/tz/dist/antarctica: patch
external/public-domain/tz/dist/asia: patch
external/public-domain/tz/dist/australasia: patch
external/public-domain/tz/dist/backward: patch
external/public-domain/tz/dist/backzone: patch
external/public-domain/tz/dist/checktab.awk: patch
external/public-domain/tz/dist/europe: patch
external/public-domain/tz/dist/leapseconds: patch
external/public-domain/tz/dist/leapseconds.awk: patch
external/public-domain/tz/dist/northamerica: patch
external/public-domain/tz/dist/southamerica: patch
external/public-domain/tz/dist/zone.tab: patch
external/public-domain/tz/dist/zone1970.tab: patch
external/public-domain/tz/dist/zoneinfo2tdf.pl: patch
Import tzdata2014g from ftp://ftp.iana.org/tz/releases/tzdata2014g.tar.gz
This includes changes for Turks & Caicos that will take
effect on 2014-11-02, changes that affect times in the
past, and some re-organisation of the source files. See
src/external/public-domain/tz/dist/NEWS for more details.
@
text
@d4 1
a4 1
# This file is by no means authoritative; if you think you know better,
d6 1
a6 2
# tz@@iana.org for general use in the future). For more, please see
# the file CONTRIBUTING in the tz distribution.
d28 2
a29 6
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
# http://www.jstor.org/stable/1774359
#
# For Russian data circa 1919, a source is:
# Byalokoz EL. New Counting of Time in Russia since July 1, 1919.
# (See the 'europe' file for a fuller citation.)
d118 1
a118 1
4:00 RussiaAsia YER%sT 1991 Mar 31 2:00s
d120 1
a120 1
3:00 RussiaAsia AM%sT 1995 Sep 24 2:00s
d122 1
a122 1
4:00 RussiaAsia AM%sT 2012 Mar 25 2:00s
d135 1
a135 1
4:00 RussiaAsia BAK%sT 1991 Mar 31 2:00s
d138 1
a138 1
4:00 - AZT 1996 # Azerbaijan Time
d144 1
a144 1
Zone Asia/Bahrain 3:22:20 - LMT 1920 # Manamah
d222 1
a222 1
Rule Dhaka 2009 only - Dec 31 24:00 0 -
d253 1
a253 1
Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
d262 5
a266 5
Zone Asia/Rangoon 6:24:40 - LMT 1880 # or Yangon
6:24:40 - RMT 1920 # Rangoon Mean Time?
6:30 - BURT 1942 May # Burma Time
9:00 - JST 1945 May 3
6:30 - MMT # Myanmar Time
d271 1
a271 1
7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
d359 2
a360 2
# French docks in the 1890s, controlled by Xujiahui (Zikawei)
# Observatory and set to local mean time.
d384 1
a384 1
# this was based on what were apparently incorrect data in Shanks & Pottenger.
d504 1
a504 1
# During the 20th century parts of Xinjiang were ruled by the Qing dynasty,
d701 2
a702 2
# http://subtpg.tpg.gov.tw/og/image2.asp?f=03502F0AKM1AF
# http://subtpg.tpg.gov.tw/og/image2.asp?f=0350300AKM1B0 (cont.)
d707 1
a707 1
# http://subtpg.tpg.gov.tw/og/image2.asp?f=0360310AKZ431
d713 1
a713 1
# adoption till Oct 31 midnight.
d744 1
a744 1
9:00 - JST 1945 Sep 21 1:00
d764 1
a764 1
Zone Asia/Macau 7:34:20 - LMT 1912 Jan 1
d826 1
a826 3
# Milne 1899 says Tbilisi (Tiflis) time was 2:59:05.7.
# Byalokoz 1919 says Georgia was 2:59:11.
# Go with Byalokoz.
d829 2
a830 2
Zone Asia/Tbilisi 2:59:11 - LMT 1880
2:59:11 - TBMT 1924 May 2 # Tbilisi Mean Time
d832 1
a832 1
4:00 RussiaAsia TBI%sT 1991 Mar 31 2:00s
d834 1
a834 1
3:00 RussiaAsia GE%sT 1992 # Georgia Time
d839 1
a839 1
3:00 RussiaAsia GE%sT 2005 Mar lastSun 2:00
d867 1
a867 1
Zone Asia/Dili 8:22:20 - LMT 1912 Jan 1
d871 1
a871 1
8:00 - WITA 2000 Sep 17 0:00
d876 1
a876 1
Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata
d890 1
a890 1
# http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime
d927 1
a927 1
7:20 - JAVT 1932 Nov # Java Time
d1085 1
a1085 1
3:25:44 - TMT 1946 # Tehran Mean Time
d1130 1
a1130 1
2:57:36 - BMT 1918 # Baghdad Mean Time?
d1358 1
a1358 1
2:20:40 - JMT 1918 # Jerusalem Mean Time?
d1374 2
a1375 2
# From Mayumi Negishi in the 2005-08-10 Japan Times:
# http://www.japantimes.co.jp/cgi-bin/getarticle.pl5?nn20050810f2.htm
d1399 1
a1399 2
# Observatory: 139 degrees 44' 40.90" E (9h 18m 58.727s),
# 35 degrees 39' 16.0" N.
d1589 1
a1589 1
5:00 - QYZT 1992 Jan 19 2:00
d1592 1
a1592 1
# Aqtobe (aka Aktobe, formerly Aktyubinsk)
d1612 1
a1612 1
5:00 RussiaAsia AQT%sT 1995 Mar lastSun 2:00 # Aqtau Time
d1621 1
a1621 1
5:00 RussiaAsia URA%sT 1989 Mar 26 2:00
d1632 1
a1632 1
# http://eng.gateway.kg/cgi-bin/page.pl?id=1&story_name=doc9979.shtml
d1647 3
a1649 3
6:00 RussiaAsia FRU%sT 1991 Mar 31 2:00s
5:00 1:00 FRUST 1991 Aug 31 2:00 # independence
5:00 Kyrgyz KG%sT 2005 Aug 12 # Kyrgyzstan Time
d1656 2
a1657 2
# From Annie I. Bang (2006-07-10):
# http://www.koreaherald.co.kr/SITE/data/html_dir/2006/07/10/200607100012.asp
d1706 2
a1707 2
Zone Asia/Vientiane 6:50:24 - LMT 1906 Jun 9 # or Viangchan
7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
d1748 2
a1749 2
# taken from Mok Ly Yng (2003-10-30)
# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html
d1761 3
a1763 3
# From Paul Eggert (2014-08-12):
# The data entries here are mostly from Shanks & Pottenger, but the 1942, 1945
# and 1982 transition dates are from Mok Ly Yng.
d1766 1
a1766 1
7:30 - BORT 1933 # Borneo Time
d1774 3
a1776 3
Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
4:54:00 - MMT 1960 # Male Mean Time
5:00 - MVT # Maldives Time
d1838 1
a1838 1
# http://ubpost.mongolnews.mn/index.php?subaction=showcomments&id=1111634894&archive=&start_from=&ucat=1&
d1906 1
a1906 1
6:00 - HOVT 1978 # Hovd Time
d1910 1
a1910 1
7:00 - ULAT 1978 # Ulaanbaatar Time
d1912 1
a1912 1
# Choibalsan, a.k.a. Bajan Tümen, Bajan Tumen, Chojbalsan,
d1976 4
a1979 3
# "... The federal cabinet on Wednesday announced a new conservation plan to
# help reduce load shedding by approving the closure of commercial centres at
# 9pm and moving clocks forward by one hour for the next three months. ...."
d2026 2
a2027 2
# Pakistan clocks across the country would be turned back by an hour from
# October 1, 2009.
d2032 6
a2038 1
# From Steffen Thorsen (2009-09-29):
d2079 1
a2079 1
Rule Pakistan 2008 2009 - Nov 1 0:00 0 -
d2081 1
d2156 1
a2156 1
# http://www.jpost.com/com/Archive/22.Apr.1999/Opinion/Article-2.html
d2374 1
a2374 1
2:00 Palestine EE%sT 2008 Aug 29 0:00
d2377 1
a2377 1
2:00 - EET 2010 Mar 27 0:01
d2397 2
a2398 2
# http://www.staff.science.uu.nl/~gent0113/idl/idl_philippines.htm
# The rest of the data entries are from Shanks & Pottenger.
d2400 7
a2412 8
# From Paul Eggert (2014-08-14):
# The following source says DST may be instituted November-January and again
# March-June, but this is not definite. It also says DST was last proclaimed
# during the Ramos administration (1992-1998); but again, no details.
# Carcamo D. PNoy urged to declare use of daylight saving time.
# Philippine Star 2014-08-05
# http://www.philstar.com/headlines/2014/08/05/1354152/pnoy-urged-declare-use-daylight-saving-time
d2429 1
a2429 1
Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha
d2460 2
a2461 2
# taken from Mok Ly Yng (2003-10-30)
# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html
d2504 1
a2504 1
# http://today.reuters.co.uk/news/newsArticle.aspx?type=scienceNews&storyID=2006-04-12T172228Z_01_COL295762_RTRIDST_0_SCIENCE-SRILANKA-TIME-DC.XML
d2543 1
a2543 1
5:19:32 - MMT 1906 # Moratuwa Mean Time
d2546 4
a2549 4
5:30 1:00 IST 1945 Oct 16 2:00
5:30 - IST 1996 May 25 0:00
6:30 - LKT 1996 Oct 26 0:30
6:00 - LKT 2006 Apr 15 0:30
d2625 2
a2626 1
# this month (March 2008) in the last day or so....
d2713 1
a2713 1
Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq
d2721 3
a2723 3
6:00 RussiaAsia DUS%sT 1991 Mar 31 2:00s
5:00 1:00 DUSST 1991 Sep 9 2:00s
5:00 - TJT # Tajikistan Time
d2736 1
a2736 1
5:00 RussiaAsia ASH%sT 1991 Mar 31 2:00
d2738 1
a2738 1
4:00 RussiaAsia TM%sT 1992 Jan 19 2:00
a2746 1
# Byalokoz 1919 says Uzbekistan was 4:27:53.
d2748 1
a2748 1
Zone Asia/Samarkand 4:27:53 - LMT 1924 May 2
d2759 1
a2759 1
6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00
d2779 1
a2779 1
7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
@
1.1.1.1.4.2
log
@Apply patch (requested by apb in ticket #245):
Update tzdata from 2014g to 2014j. Some of the changes are:
* A new Zone Pacific/Bougainville, for the part of Papua New Guinea
that plans to switch from UTC+10 to UTC+11 on 2014-12-28 at 02:00.
* Changes for Fiji, Belarus, and Turks & Caicos that take effect
at various times in 2014.
* Changes to historical data.
@
text
@d9 1
a9 1
# From Paul Eggert (2014-10-31):
d11 1
a11 1
# Unless otherwise specified, the source for data through 1990 is:
a13 1
# Unfortunately this book contains many errors and cites no sources.
d19 4
a22 2
# of the IATA's data after 1990. Except where otherwise noted,
# IATA SSIM is the source for entries after 1990.
d50 1
a50 1
# 7:00 ICT Indochina, most times and locations*
a53 1
# 8:00 IDT Indochina, 1943-45, 1947-55, 1960-75 (some locations)*
d274 6
a279 2
# See Asia/Bangkok.
a895 4
# From Paul Eggert (2014-09-06):
# The 1876 Report of the Secretary of the [US] Navy, p 306 says that Batavia
# civil time was 7:07:12.5; round to even for Jakarta.
#
d1665 16
a1680 47
# http://www.koreaherald.com/view.php?ud=200607100012
# Korea ran a daylight saving program from 1949-61 but stopped it
# during the 1950-53 Korean War. The system was temporarily enforced
# between 1987 and 1988 ...
# From Sanghyuk Jung (2014-10-29):
# http://mm.icann.org/pipermail/tz/2014-October/021830.html
# According to the Korean Wikipedia
# http://ko.wikipedia.org/wiki/한국_표준시
# [oldid=12896437 2014-09-04 08:03 UTC]
# DST in Republic of Korea was as follows.... And I checked old
# newspapers in Korean, all articles correspond with data in Wikipedia.
# For example, the article in 1948 (Korean Language) proved that DST
# started at June 1 in that year. For another example, the article in
# 1988 said that DST started at 2:00 AM in that year.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule ROK 1948 only - Jun 1 0:00 1:00 D
Rule ROK 1948 only - Sep 13 0:00 0 S
Rule ROK 1949 only - Apr 3 0:00 1:00 D
Rule ROK 1949 1951 - Sep Sun>=8 0:00 0 S
Rule ROK 1950 only - Apr 1 0:00 1:00 D
Rule ROK 1951 only - May 6 0:00 1:00 D
Rule ROK 1955 only - May 5 0:00 1:00 D
Rule ROK 1955 only - Sep 9 0:00 0 S
Rule ROK 1956 only - May 20 0:00 1:00 D
Rule ROK 1956 only - Sep 30 0:00 0 S
Rule ROK 1957 1960 - May Sun>=1 0:00 1:00 D
Rule ROK 1957 1960 - Sep Sun>=18 0:00 0 S
Rule ROK 1987 1988 - May Sun>=8 2:00 1:00 D
Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S
# From Paul Eggert (2014-10-30):
# The Korean Wikipedia entry gives the following sources for UT offsets:
#
# 1908: Official Journal Article No. 3994 (Edict No. 5)
# 1912: Governor-General of Korea Official Gazette Issue No. 367
# (Announcement No. 338)
# 1954: Presidential Decree No. 876 (1954-03-17)
# 1961: Law No. 676 (1961-08-07)
# 1987: Law No. 3919 (1986-12-31)
#
# The Wikipedia entry also has confusing information about a change
# to UT+9 in April 1910, but then what would be the point of the later change
# to UT+9 on 1912-01-01? Omit the 1910 change for now.
#
# I guessed that time zone abbreviations through 1945 followed the same
a1682 2
#
# For Pyongyang we have no information; guess no changes since World War II.
d1685 4
a1688 2
Zone Asia/Seoul 8:27:52 - LMT 1908 Apr 1
8:30 - KST 1912 Jan 1
d1692 2
a1693 1
8:30 ROK K%sT 1961 Aug 10
d1695 4
a1698 2
Zone Asia/Pyongyang 8:23:00 - LMT 1908 Apr 1
8:30 - KST 1912 Jan 1
d1701 2
d1713 6
a1718 2
# See Asia/Bangkok.
a2730 2
Link Asia/Bangkok Asia/Phnom_Penh # Cambodia
Link Asia/Bangkok Asia/Vientiane # Laos
d2768 1
a2768 1
# From Paul Eggert (2014-10-04):
d2772 1
a2772 1
# and Pottenger for LMT before 1906.
d2778 6
a2783 49
# From Paul Eggert (2014-10-21) after a heads-up from Trần Ngọc Quân:
# Trần Tiến Bình's authoritative book "Lịch Việt Nam: thế kỷ XX-XXI (1901-2100)"
# (Nhà xuất bản Văn Hoá - Thông Tin, Hanoi, 2005), pp 49-50,
# is quoted verbatim in:
# http://www.thoigian.com.vn/?mPage=P80D01
# is translated by Brian Inglis in:
# http://mm.icann.org/pipermail/tz/2014-October/021654.html
# and is the basis for the information below.
#
# The 1906 transition was effective July 1 and standardized Indochina to
# Phù Liễn Observatory, legally 104 deg. 17'17" east of Paris.
# It's unclear whether this meant legal Paris Mean Time (00:09:21) or
# the Paris Meridian (2 deg. 20'14.03" E); the former yields 07:06:30.1333...
# and the latter 07:06:29.333... so either way it rounds to 07:06:30,
# which is used below even though the modern-day Phù Liễn Observatory
# is closer to 07:06:31. Abbreviate Phù Liễn Mean Time as PLMT.
#
# The following transitions occurred in Indochina in general (before 1954)
# and in South Vietnam in particular (after 1954):
# To 07:00 on 1911-05-01.
# To 08:00 on 1942-12-31 at 23:00.
# To 09:00 in 1945-03-14 at 23:00.
# To 07:00 on 1945-09-02 in Vietnam.
# To 08:00 on 1947-04-01 in French-controlled Indochina.
# To 07:00 on 1955-07-01 in South Vietnam.
# To 08:00 on 1959-12-31 at 23:00 in South Vietnam.
# To 07:00 on 1975-06-13 in South Vietnam.
#
# Trần cites the following sources; it's unclear which supplied the info above.
#
# Hoàng Xuân Hãn: "Lịch và lịch Việt Nam". Tập san Khoa học Xã hội,
# No. 9, Paris, February 1982.
#
# Lê Thành Lân: "Lịch và niên biểu lịch sử hai mươi thế kỷ (0001-2010)",
# NXB Thống kê, Hanoi, 2000.
#
# Lê Thành Lân: "Lịch hai thế kỷ (1802-2010) và các lịch vĩnh cửu",
# NXB Thuận Hoá, Huế, 1995.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jul 1
7:06:30 - PLMT 1911 May 1
7:00 - ICT 1942 Dec 31 23:00
8:00 - IDT 1945 Mar 14 23:00
9:00 - JST 1945 Sep 2
7:00 - ICT 1947 Apr 1
8:00 - IDT 1955 Jul 1
7:00 - ICT 1959 Dec 31 23:00
8:00 - IDT 1975 Jun 13
@
1.1.1.1.4.3
log
@Pull up following revision(s) (requested by apb in ticket #638):
doc/3RDPARTY: patch
external/public-domain/tz/dist/Makefile: up to revision 1.1.1.7
external/public-domain/tz/dist/NEWS: up to revision 1.1.1.7
external/public-domain/tz/dist/Theory: up to revision 1.1.1.3
external/public-domain/tz/dist/antarctica: up to revision 1.1.1.3
external/public-domain/tz/dist/asia: up to revision 1.1.1.7
external/public-domain/tz/dist/australasia: up to revision 1.1.1.5
external/public-domain/tz/dist/backward: up to revision 1.1.1.3
external/public-domain/tz/dist/backzone: up to revision 1.1.1.6
external/public-domain/tz/dist/checklinks.awk: up to revision 1.1.1.1
external/public-domain/tz/dist/checktab.awk: up to revision 1.1.1.6
external/public-domain/tz/dist/europe: up to revision 1.1.1.7
external/public-domain/tz/dist/leap-seconds.list: up to revision 1.1.1.3
external/public-domain/tz/dist/leapseconds: up to revision 1.1.1.4
external/public-domain/tz/dist/leapseconds.awk: up to revision 1.1.1.4
external/public-domain/tz/dist/northamerica: up to revision 1.1.1.7
external/public-domain/tz/dist/southamerica: up to revision 1.1.1.5
external/public-domain/tz/dist/zone.tab: up to revision 1.1.1.4
external/public-domain/tz/dist/zone1970.tab: up to revision 1.1.1.5
Update tzdata from 2014j to 2015b. Some of the changes are:
* Mongolia will start observing DST in 2015.
* Changes to Palestine DST dates in 2014 and 2015.
* The Mexican state of Quintana Roo, represented by
America/Cancun, changed time zone in Feb 2015.
* Chile's new standard time from 2015 will be its old DST.
* New leap second 2015-06-30 23:59:60 UTC as per IERS Bulletin C 49.
* Corrections to historic times in Iceland and Easter Island.
* Some more zones have been turned into links, when they
differed from existing zones only for times before 1970.
@
text
@d148 4
a151 1
# See Asia/Qatar.
d1734 3
a1736 1
# See Asia/Riyadh.
a1911 7
# From Ganbold Tsagaankhuu (2015-03-10):
# It seems like yesterday Mongolian Government meeting has concluded to use
# daylight saving time in Mongolia.... Starting at 2:00AM of last Saturday of
# March 2015, daylight saving time starts. And 00:00AM of last Saturday of
# September daylight saving time ends. Source:
# http://zasag.mn/news/view/8969
a1931 2
Rule Mongol 2015 max - Mar lastSat 2:00 1:00 S
Rule Mongol 2015 max - Sep lastSat 0:00 0 -
d1957 6
a1962 1
# See Asia/Dubai.
d2355 7
a2361 13
# From Steffen Thorsen (2015-03-03):
# Sources such as http://www.alquds.com/news/article/view/id/548257
# and http://www.raya.ps/ar/news/890705.html say Palestine areas will
# start DST on 2015-03-28 00:00 which is one day later than expected.
#
# From Paul Eggert (2015-03-03):
# http://www.timeanddate.com/time/change/west-bank/ramallah?year=2014
# says that the fall 2014 transition was Oct 23 at 24:00.
# For future dates, guess the last Friday in March at 24:00 through
# the first Friday on or after October 21 at 00:00. This is consistent with
# the predictions in today's editions of the following URLs:
# http://www.timeanddate.com/time/change/gaza-strip/gaza
# http://www.timeanddate.com/time/change/west-bank/hebron
d2387 1
a2387 1
Rule Palestine 2012 2014 - Mar lastThu 24:00 1:00 S
d2389 1
a2389 3
Rule Palestine 2013 only - Sep Fri>=21 0:00 0 -
Rule Palestine 2014 max - Oct Fri>=21 0:00 0 -
Rule Palestine 2015 max - Mar lastFri 24:00 1:00 S
a2455 1
Link Asia/Qatar Asia/Bahrain
a2481 2
Link Asia/Riyadh Asia/Aden # Yemen
Link Asia/Riyadh Asia/Kuwait
a2769 1
Link Asia/Dubai Asia/Muscat # Oman
d2854 7
a2860 1
# See Asia/Riyadh.
@
1.1.1.1.4.4
log
@Pull up following revision(s) (requested by jun in ticket #955):
doc/3RDPARTY: patch
external/public-domain/tz/dist/Makefile: up to 1.1.1.9
external/public-domain/tz/dist/NEWS: up to 1.1.1.9
external/public-domain/tz/dist/Theory: up to 1.1.1.4
external/public-domain/tz/dist/africa: up to 1.1.1.6
external/public-domain/tz/dist/antarctica: up to 1.1.1.4
external/public-domain/tz/dist/asia: up to 1.1.1.8
external/public-domain/tz/dist/backward: up to 1.1.1.4
external/public-domain/tz/dist/backzone: up to 1.1.1.7
external/public-domain/tz/dist/checktab.awk: up to 1.1.1.7
external/public-domain/tz/dist/europe: up to 1.1.1.9
external/public-domain/tz/dist/iso3166.tab: up to 1.1.1.2
external/public-domain/tz/dist/leap-seconds.list: up to 1.1.1.4
external/public-domain/tz/dist/leapseconds: up to 1.1.1.5
external/public-domain/tz/dist/northamerica: up to 1.1.1.9
external/public-domain/tz/dist/southamerica: up to 1.1.1.7
external/public-domain/tz/dist/zone.tab: up to 1.1.1.5
external/public-domain/tz/dist/zone1970.tab: up to 1.1.1.7
external/public-domain/tz/tzdata2netbsd: up to 1.7
Update tzdata to 2015f.
@
text
@d9 1
a9 1
# From Paul Eggert (2015-08-08):
d46 1
a46 1
# 3:30 IRST IRDT Iran*
a54 1
# 8:30 KST KDT Korea when at +0830*
d58 1
a58 1
# 9:00 KST KDT Korea when at +09
d1030 1
a1030 1
# Iran, Volume 63, No. 18242, dated Tuesday 1386/6/24
d1560 1
a1560 1
# From Kazakhstan Embassy's News Bulletin No. 11
a1713 11
# From Steffen Thorsen (2015-08-07):
# According to many news sources, North Korea is going to change to
# the 8:30 time zone on August 15, one example:
# http://www.bbc.com/news/world-asia-33815049
#
# From Paul Eggert (2015-08-07):
# No transition time is specified; assume 00:00.
# There is no common English-language abbreviation for this time zone.
# Use %z rather than invent one. We can't assume %z works everywhere yet,
# so for now substitute its output manually.
d1726 1
a1726 2
9:00 - KST 2015 Aug 15
8:30 - KST
@
1.1.1.1.4.4.2.1
log
@Pull up following revision(s) (requested by christos in ticket #1143):
external/public-domain/tz/dist/CONTRIBUTING: up to 1.1.1.2
external/public-domain/tz/dist/LICENSE: up to 1.1.1.1
external/public-domain/tz/dist/Makefile: up to 1.1.1.10
external/public-domain/tz/dist/NEWS: up to 1.1.1.10
external/public-domain/tz/dist/README: up to 1.1.1.3
external/public-domain/tz/dist/Theory: up to 1.1.1.5
external/public-domain/tz/dist/asia: up to 1.1.1.9
external/public-domain/tz/dist/australasia: up to 1.1.1.6
external/public-domain/tz/dist/backward: up to 1.1.1.5
external/public-domain/tz/dist/backzone: up to 1.1.1.8
external/public-domain/tz/dist/checklinks.awk: up to 1.1.1.2
external/public-domain/tz/dist/checktab.awk: up to 1.1.1.8
external/public-domain/tz/dist/europe: up to 1.1.1.10
external/public-domain/tz/dist/iso3166.tab: up to 1.1.1.3
external/public-domain/tz/dist/leap-seconds.list: up to 1.1.1.5
external/public-domain/tz/dist/leapseconds.awk: up to 1.1.1.5
external/public-domain/tz/dist/leapseconds: up to 1.1.1.6
external/public-domain/tz/dist/northamerica: up to 1.1.1.10
external/public-domain/tz/dist/zone.tab: up to 1.1.1.6
external/public-domain/tz/dist/zone1970.tab: up to 1.1.1.8
external/public-domain/tz/tzdata2netbsd: up to 1.8
Update tzdata to 2016b.
@
text
@d134 1
a134 2
# From Paul Eggert (2015-09-17): It was Resolution No. 21 (1997-03-17).
# http://code.az/files/daylight_res.pdf
a875 9
# From Ian P. Beacock, in "A brief history of (modern) time", The Atlantic
# http://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/
# (2015-12-22):
# In January 1906, several thousand cotton-mill workers rioted on the
# outskirts of Bombay.... They were protesting the proposed abolition of
# local time in favor of Indian Standard Time.... Journalists called this
# dispute the "Battle of the Clocks." It lasted nearly half a century.
d1086 2
a1087 9
#
# The following rules are approximations starting in the year 2038.
# These are the best post-2037 approximations available, given the
# restrictions of a single rule using a Gregorian-based data format.
# At some point this table will need to be extended, though quite
# possibly Iran will change the rules first.
Rule Iran 2036 max - Mar 21 0:00 1:00 D
Rule Iran 2036 max - Sep 21 0:00 0 S
d1720 2
a1721 4
# From Paul Eggert (2015-08-15):
# Bells rang out midnight (00:00) Friday as part of the celebrations. See:
# Talmadge E. North Korea celebrates new time zone, 'Pyongyang Time'
# http://news.yahoo.com/north-korea-celebrates-time-zone-pyongyang-time-164038128.html
d1723 2
a1724 1
# Use KST, as that's what we already use for 1954-1961 in ROK.
d1738 1
a1738 1
9:00 - KST 2015 Aug 15 00:00
d2112 2
a2113 2
Rule Pakistan 2002 only - Apr Sun>=2 0:00 1:00 S
Rule Pakistan 2002 only - Oct Sun>=2 0:00 0 -
a2380 10
# From Hannah Kreitem (2016-03-09):
# http://www.palestinecabinet.gov.ps/WebSite/ar/ViewDetails?ID=31728
# [Google translation]: "The Council also decided to start daylight
# saving in Palestine as of one o'clock on Saturday morning,
# 2016-03-26, to provide the clock 60 minutes ahead."
#
# From Paul Eggert (2016-03-12):
# Predict spring transitions on March's last Saturday at 01:00 from now on.
# Leave fall predictions alone for now.
d2409 1
a2409 2
Rule Palestine 2015 only - Mar lastFri 24:00 1:00 S
Rule Palestine 2016 max - Mar lastSat 1:00 1:00 S
@
1.1.1.1.4.4.2.2
log
@Pull up following revision(s) (requested by kre in ticket #1324):
distrib/sets/lists/base/mi: 1.1125, 1.1128, 1.1132, 1.1137, 1.1139, 1.1140
external/public-domain/tz/dist/CONTRIBUTING: up to 1.1.1.3
external/public-domain/tz/dist/LICENSE: up to 1.1.1.2
external/public-domain/tz/dist/Makefile: up to 1.1.1.16
external/public-domain/tz/dist/NEWS: up to 1.1.1.16
external/public-domain/tz/dist/README: up to 1.1.1.5
external/public-domain/tz/dist/TZDATA_VERSION: up to 1.6
external/public-domain/tz/dist/Theory: up to 1.1.1.9
external/public-domain/tz/dist/africa: up to 1.1.1.9
external/public-domain/tz/dist/antarctica: up to 1.1.1.7
external/public-domain/tz/dist/asia: up to 1.1.1.15
external/public-domain/tz/dist/australasia: up to 1.1.1.10
external/public-domain/tz/dist/backward: up to 1.1.1.6
external/public-domain/tz/dist/backzone: up to 1.1.1.10
external/public-domain/tz/dist/etcetera: up to 1.1.1.2
external/public-domain/tz/dist/europe: up to 1.1.1.16
external/public-domain/tz/dist/factory: up to 1.1.1.2
external/public-domain/tz/dist/iso3166.tab: up to 1.1.1.4
external/public-domain/tz/dist/leap-seconds.list: up to 1.1.1.6
external/public-domain/tz/dist/leapseconds: up to 1.1.1.7
external/public-domain/tz/dist/northamerica: up to 1.1.1.14
external/public-domain/tz/dist/southamerica: up to 1.1.1.10
external/public-domain/tz/dist/version: up to 1.1.1.3
external/public-domain/tz/dist/zone.tab: up to 1.1.1.10
external/public-domain/tz/dist/zone1970.tab: up to 1.1.1.12
external/public-domain/tz/share/zoneinfo/Makefile: up to 1.3
external/public-domain/tz/tzdata2netbsd: up to 1.11
Update tzdata to 2016j.
@
text
@d82 7
a88 3
Rule RussiaAsia 1984 1995 - Sep lastSun 2:00s 0 -
Rule RussiaAsia 1985 2011 - Mar lastSun 2:00s 1:00 S
Rule RussiaAsia 1996 2011 - Oct lastSun 2:00s 0 -
d123 7
a129 5
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1995 Sep 24 2:00s
4:00 - +04 1997
4:00 RussiaAsia +04/+05
a131 1
a135 8
# From Steffen Thorsen (2016-03-17):
# ... the Azerbaijani Cabinet of Ministers has cancelled switching to
# daylight saving time....
# http://www.azernews.az/azerbaijan/94137.html
# http://vestnikkavkaza.net/news/Azerbaijani-Cabinet-of-Ministers-cancels-daylight-saving-time.html
# http://en.apa.az/xeber_azerbaijan_abolishes_daylight_savings_ti_240862.html
d137 2
a138 2
Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 S
Rule Azer 1997 2015 - Oct lastSun 5:00 0 -
d141 7
a147 6
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1992 Sep lastSun 2:00s
4:00 - +04 1996
4:00 EUAsia +04/+05 1997
4:00 Azer +04/+05
d266 1
a266 1
Zone Asia/Yangon 6:24:40 - LMT 1880 # or Rangoon
d381 1
a381 1
# Xujiahui Observatory was under French control and stuck with UT +08.
d390 1
a390 1
# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) UT +08:30
d394 1
a394 1
# Zhongyuan Time ("Central plain Time") UT +08
d400 1
a400 1
# Guo says Shanghai switched to UT +08 "from the end of the 19th century".
d402 1
a402 1
# Long-shu Time (probably due to Long and Shu being two names of the area) UT +07
d409 1
a409 1
# Xin-zang Time ("Xinjiang-Tibet Time") UT +06
d422 1
a422 1
# Kunlun Time UT +05:30
d438 1
a438 1
# hours behind Beijing time, or UT +06. The government of the Xinjiang
d494 2
a495 2
# In the early days of the PRC, Tibet was given its own time zone (UT +06)
# but this was withdrawn in 1959 and never reinstated; see Tubten Khétsun,
d509 1
a509 1
# UT +06 at the start of 1928, the year of accession of the warlord Jin Shuren,
d511 2
a512 2
# guess) as the transition from LMT. Ignore the usage of +08 before
# 1986-02-01 under the theory that the transition date to +08 is unknown and
d514 1
a514 1
# +08 mandate back then.
d719 1
a719 1
# As per Yu-Cheng Chuang, say that Taiwan was at UT +09 from 1937-10-01
d772 1
a772 1
d774 1
a774 11
# IATA SSIM (1998-09) has Cyprus using EU rules for the first time.
# From Paul Eggert (2016-09-09):
# Yesterday's Cyprus Mail reports that Northern Cyprus followed Turkey's
# lead and switched from +02/+03 to +03 year-round.
# http://cyprus-mail.com/2016/09/08/two-time-zones-cyprus-turkey-will-not-turn-clocks-back-next-month/
#
# From Even Scharning (2016-10-31):
# Looks like the time zone split in Cyprus went through last night.
# http://cyprus-mail.com/2016/10/30/cyprus-new-division-two-time-zones-now-reality/
d789 1
a789 4
Zone Asia/Famagusta 2:15:48 - LMT 1921 Nov 14
2:00 Cyprus EE%sT 1998 Sep
2:00 EUAsia EE%sT 2016 Sep 8
3:00 - +03
d833 10
a842 9
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1992
3:00 E-EurAsia +03/+04 1994 Sep lastSun
4:00 E-EurAsia +04/+05 1996 Oct lastSun
4:00 1:00 +05 1997 Mar lastSun
4:00 E-EurAsia +04/+05 2004 Jun 27
3:00 RussiaAsia +03/+04 2005 Mar lastSun 2:00
4:00 - +04
d919 1
a919 1
# from UT +09 to +07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura
d930 1
a930 1
# The time zone abbreviations and UT offsets are:
d932 3
a934 3
# WIB - +07 - Waktu Indonesia Barat (Indonesia western time)
# WITA - +08 - Waktu Indonesia Tengah (Indonesia central time)
# WIT - +09 - Waktu Indonesia Timur (Indonesia eastern time)
d1561 17
d1589 2
a1590 2
# same), encompassing four provinces in the west: Aqtöbe, Atyraū,
# Mangghystaū, and West Kazakhstan. The other zone encompasses
d1594 1
a1594 156
# From Stepan Golosunov (2016-03-27):
# Review of the linked documents from http://adilet.zan.kz/
# produced the following data for post-1991 Kazakhstan:
#
# 0. Act of the Cabinet of Ministers of the USSR
# from 1991-02-04 No. 20
# http://pravo.gov.ru/proxy/ips/?docbody=&nd=102010545
# removed the extra hour ("decree time") on the territory of the USSR
# starting with the last Sunday of March 1991.
# It also allowed (but not mandated) Kazakh SSR, Kirghiz SSR, Tajik SSR,
# Turkmen SSR and Uzbek SSR to not have "summer" time.
#
# The 1992-01-13 act also refers to the act of the Cabinet of Ministers
# of the Kazakh SSR from 1991-03-20 No. 170 "About the act of the Cabinet
# of Ministers of the USSR from 1991-02-04 No. 20" but I didn't found its
# text.
#
# According to Izvestia newspaper No. 68 (23334) from 1991-03-20
# (page 6; available at http://libinfo.org/newsr/newsr2574.djvu via
# http://libinfo.org/index.php?id=58564) on 1991-03-31 at 2:00 during
# transition to "summer" time:
# Republic of Georgia, Latvian SSR, Lithuanian SSR, SSR Moldova,
# Estonian SSR; Komi ASSR; Kaliningrad oblast; Nenets autonomous okrug
# were to move clocks 1 hour forward.
# Kazakh SSR (excluding Uralsk oblast); Republic of Kyrgyzstan, Tajik
# SSR; Andijan, Jizzakh, Namangan, Sirdarya, Tashkent, Fergana oblasts
# of the Uzbek SSR were to move clocks 1 hour backwards.
# Other territories were to not move clocks.
# When the "summer" time would end on 1991-09-29, clocks were to be
# moved 1 hour backwards on the territory of the USSR excluding
# Kazakhstan, Kirghizia, Uzbekistan, Turkmenia, Tajikistan.
#
# Apparently there were last minute changes. Apparently Kazakh act No. 170
# was one of such changes.
#
# https://ru.wikipedia.org/wiki/Декретное время
# claims that Sovetskaya Rossiya newspaper on 1991-03-29 published that
# Nenets autonomous okrug, Komi and Kazakhstan (excluding Uralsk oblast)
# were to not move clocks and Uralsk oblast was to move clocks
# forward; on 1991-09-29 Kazakhstan was to move clocks backwards.
# (Probably there were changes even after that publication. There is an
# article claiming that Kaliningrad oblast decided on 1991-03-29 to not
# move clocks.)
#
# This implies that on 1991-03-31 Asia/Oral remained on +04/+05 while
# the rest of Kazakhstan switched from +06/+07 to +05/06 or from +05/06
# to +04/+05. It's unclear how Qyzylorda oblast moved into the fifth
# time belt. (By switching from +04/+05 to +05/+06 on 1991-09-29?) ...
#
# 1. Act of the Cabinet of Ministers of the Republic of Kazakhstan
# from 1992-01-13 No. 28
# http://adilet.zan.kz/rus/docs/P920000028_
# (text includes modification from the 1996 act)
# introduced new rules for calculation of time, mirroring Russian
# 1992-01-08 act. It specified that time would be calculated
# according to time belts plus extra hour ("decree time"), moved clocks
# on the whole territory of Kazakhstan 1 hour forward on 1992-01-19 at
# 2:00, specified DST rules. It acknowledged that Kazakhstan was
# located in the fourth and the fifth time belts and specified the
# border between them to be located east of Qostanay and Aktyubinsk
# oblasts (notably including Turgai and Qyzylorda oblasts into the fifth
# time belt).
#
# This means switch on 1992-01-19 at 2:00 from +04/+05 to +05/+06 for
# Asia/Aqtau, Asia/Aqtobe, Asia/Oral, Atyraū and Qostanay oblasts; from
# +05/+06 to +06/+07 for Asia/Almaty and Asia/Qyzylorda (and Arkalyk)....
#
# 2. Act of the Cabinet of Ministers of the Republic of Kazakhstan
# from 1992-03-27 No. 284
# http://adilet.zan.kz/rus/docs/P920000284_
# cancels extra hour ("decree time") for Uralsk and Qyzylorda oblasts
# since the last Sunday of March 1992, while keeping them in the fourth
# and the fifth time belts respectively.
#
# 3. Order of the Prime Minister of the Republic of Kazakhstan
# from 1994-09-23 No. 384
# http://adilet.zan.kz/rus/docs/R940000384_
# cancels the extra hour ("decree time") on the territory of Mangghystaū
# oblast since the last Sunday of September 1994 (saying that time on
# the territory would correspond to the third time belt as a
# result)....
#
# 4. Act of the Government of the Republic of Kazakhstan
# from 1996-05-08 No. 575
# http://adilet.zan.kz/rus/docs/P960000575_
# amends the 1992-01-13 act to end summer time in October instead
# of September, mirroring identical Russian change from 1996-04-23 act.
#
# 5. Act of the Government of the Republic of Kazakhstan
# from 1999-03-26 No. 305
# http://adilet.zan.kz/rus/docs/P990000305_
# cancels the extra hour ("decree time") for Atyraū oblast since the
# last Sunday of March 1999 while retaining the oblast in the fourth
# time belt.
#
# This means change from +05/+06 to +04/+05....
#
# 6. Act of the Government of the Republic of Kazakhstan
# from 2000-11-23 No. 1749
# http://adilet.zan.kz/rus/archive/docs/P000001749_/23.11.2000
# replaces the previous five documents.
#
# The only changes I noticed are in definition of the border between the
# fourth and the fifth time belts. They account for changes in spelling
# and administrative division (splitting of Turgai oblast in 1997
# probably changed time in territories incorporated into Qostanay oblast
# (including Arkalyk) from +06/+07 to +05/+06) and move Qyzylorda oblast
# from being in the fifth time belt and not using decree time into the
# fourth time belt (no change in practice).
#
# 7. Act of the Government of the Republic of Kazakhstan
# from 2003-12-29 No. 1342
# http://adilet.zan.kz/rus/docs/P030001342_
# modified the 2000-11-23 act. No relevant changes, apparently.
#
# 8. Act of the Government of the Republic of Kazakhstan
# from 2004-07-20 No. 775
# http://adilet.zan.kz/rus/archive/docs/P040000775_/20.07.2004
# modified the 2000-11-23 act to move Qostanay and Qyzylorda oblasts into
# the fifth time belt and add Aktobe oblast to the list of regions not
# using extra hour ("decree time"), leaving Kazakhstan with only 2 time
# zones (+04/+05 and +06/+07). The changes were to be implemented
# during DST transitions in 2004 and 2005 but the acts got radically
# amended before implementation happened.
#
# 9. Act of the Government of the Republic of Kazakhstan
# from 2004-09-15 No. 1059
# http://adilet.zan.kz/rus/docs/P040001059_
# modified the 2000-11-23 act to remove exceptions from the "decree time"
# (leaving Kazakhstan in +05/+06 and +06/+07 zones), amended the
# 2004-07-20 act to implement changes for Atyraū, West Kazakhstan,
# Qostanay, Qyzylorda and Mangghystaū oblasts by not moving clocks
# during the 2004 transition to "winter" time.
#
# This means transition from +04/+05 to +05/+06 for Atyraū oblast (no
# zone currently), Asia/Oral, Asia/Aqtau and transition from +05/+06 to
# +06/+07 for Qostanay oblast (Qostanay and Arkalyk, no zones currently)
# and Asia/Qyzylorda on 2004-10-31 at 3:00....
#
# 10. Act of the Government of the Republic of Kazakhstan
# from 2005-03-15 No. 231
# http://adilet.zan.kz/rus/docs/P050000231_
# removes DST provisions from the 2000-11-23 act, removes most of the
# (already implemented) provisions from the 2004-07-20 and 2004-09-15
# acts, comes into effect 10 days after official publication.
# The only practical effect seems to be the abolition of the summer
# time.
#
# Unamended version of the act of the Government of the Russian Federation
# No. 23 from 1992-01-08 [See 'europe' file for details].
# Kazakh 1992-01-13 act appears to provide the same rules and 1992-03-27
# act was to be enacted on the last Sunday of March 1992.
# From Paul Eggert (2016-11-07):
# The tables below reflect Golosunov's remarks, with exceptions as noted.
a1597 2
# This includes KZ-AKM, KZ-ALA, KZ-ALM, KZ-AST, KZ-BAY, KZ-VOS, KZ-ZHA,
# KZ-KAR, KZ-SEV, KZ-PAV, and KZ-YUZ.
d1599 6
a1604 8
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s
6:00 RussiaAsia +06/+07 2004 Oct 31 2:00s
6:00 - +06
# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-KZY)
# This currently includes Qostanay (aka Kostanay, Kustanay) (KZ-KUS);
# see comments below.
d1606 10
a1615 25
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1991 Sep 29 2:00s
5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s
6:00 RussiaAsia +06/+07 1992 Mar 29 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
6:00 - +06
# The following zone is like Asia/Qyzylorda except for being one
# hour earlier from 1991-09-29 to 1992-03-29. The 1991/2 rules for
# Qostenay are unclear partly because of the 1997 Turgai
# reorganization, so this zone is commented out for now.
#Zone Asia/Qostanay 4:14:20 - LMT 1924 May 2
# 4:00 - +04 1930 Jun 21
# 5:00 - +05 1981 Apr 1
# 5:00 1:00 +06 1981 Oct 1
# 6:00 - +06 1982 Apr 1
# 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
# 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
# 5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
# 6:00 - +06
#
# Aqtöbe (aka Aktobe, formerly Aktyubinsk) (KZ-AKT)
d1617 9
a1625 9
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
5:00 - +05
# Mangghystaū (KZ-MAN)
d1629 10
a1638 22
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 1994 Sep 25 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
# Atyraū (KZ-ATY) is like Mangghystaū except it switched from
# +04/+05 to +05/+06 in spring 1999, not fall 1994.
Zone Asia/Atyrau 3:27:44 - LMT 1924 May 2
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 1999 Mar 28 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
# West Kazakhstan (KZ-ZAP)
# From Paul Eggert (2016-03-18):
# The 1989 transition is from USSR act No. 227 (1989-03-14).
d1640 9
a1648 9
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1989 Mar 26 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 1992 Mar 29 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
d1669 5
a1673 5
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 RussiaAsia +05/+06 1991 Aug 31 2:00
5:00 Kyrgyz +05/+06 2005 Aug 12
6:00 - +06
d1712 1
a1712 1
# From Paul Eggert (2016-08-23):
d1715 1
a1715 1
# 1908: Official Journal Article No. 3994 (decree No. 5)
d1720 1
d1722 3
a1724 2
# (Another source "1987: Law No. 3919 (1986-12-31)" was in the 2014-10-30
# edition of the Korean Wikipedia entry.)
d1730 1
a1730 2
# For Pyongyang, guess no changes from World War II until 2015, as we
# have no information otherwise.
d1890 1
a1890 1
# travelmongolia.org says there are two time zones (UT +07, +08) with no DST.
d2393 5
d2407 1
a2407 15
# From Sharef Mustafa (2016-10-19):
# [T]he Palestinian cabinet decision (Mar 8th 2016) published on
# http://www.palestinecabinet.gov.ps/WebSite/Upload/Decree/GOV_17/16032016134830.pdf
# states that summer time will end on Oct 29th at 01:00.
#
# From Tim Parenti (2016-10-19):
# Predict fall transitions on October's last Saturday at 01:00 from now on.
# This is consistent with the 2016 transition as well as our spring
# predictions.
#
# From Paul Eggert (2016-10-19):
# It's also consistent with predictions in the following URLs today:
# http://www.timeanddate.com/time/change/gaza-strip/gaza
# http://www.timeanddate.com/time/change/west-bank/hebron
d2436 1
a2436 1
Rule Palestine 2014 2015 - Oct Fri>=21 0:00 0 -
a2438 1
Rule Palestine 2016 max - Oct lastSat 1:00 0 -
d2442 1
a2442 1
2:00 Zion EET/EEST 1948 May 15
d2455 1
a2455 1
2:00 Zion EET/EEST 1948 May 15
d2526 1
a2526 1
# time zones; the other zone, at UT +04, was in the far eastern part of
d2588 28
a2615 14
# From Sadika Sumanapala (2016-10-19):
# According to http://www.sltime.org (maintained by Measurement Units,
# Standards & Services Department, Sri Lanka) abbreviation for Sri Lanka
# standard time is SLST.
#
# From Paul Eggert (2016-10-18):
# "SLST" seems to be reasonably recent and rarely-used outside time
# zone nerd sources. I searched Google News and found three uses of
# it in the International Business Times of India in February and
# March of this year when discussing cricket match times, but nothing
# since then (though there has been a lot of cricket) and nothing in
# other English-language news sources. Our old abbreviation "LKT" is
# even worse. For now, let's use a numeric abbreviation; we can
# switch to "SLST" if it catches on.
d2620 7
a2626 7
5:30 - +0530 1942 Jan 5
5:30 0:30 +0530/+06 1942 Sep
5:30 1:00 +0530/+0630 1945 Oct 16 2:00
5:30 - +0530 1996 May 25 0:00
6:30 - +0630 1996 Oct 26 0:30
6:00 - +06 2006 Apr 15 0:30
5:30 - +0530
d2795 4
a2798 4
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 1:00 +05/+06 1991 Sep 9 2:00s
5:00 - +05
d2812 5
a2816 4
4:00 - +04 1930 Jun 21
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00
5:00 - +05
d2828 7
a2834 6
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1992
5:00 - +05
d2837 5
a2841 4
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00
5:00 RussiaAsia +05/+06 1992
5:00 - +05
@
1.1.1.1.4.4.2.3
log
@Pull up following revision(s) (requested by kre in ticket #1374):
doc/3RDPARTY: 1.1420 via patch
distrib/sets/lists/base/mi: 1.1155
external/public-domain/tz/dist/Makefile: up to 1.1.1.17
external/public-domain/tz/dist/NEWS: up to 1.1.1.17
external/public-domain/tz/dist/TZDATA_VERSION: up to 1.7
external/public-domain/tz/dist/Theory: up to 1.1.1.10
external/public-domain/tz/dist/africa: up to 1.1.1.10
external/public-domain/tz/dist/antarctica: up to 1.1.1.8
external/public-domain/tz/dist/asia: up to 1.1.1.16
external/public-domain/tz/dist/australasia: up to 1.1.1.11
external/public-domain/tz/dist/backward: up to 1.1.1.7
external/public-domain/tz/dist/backzone: up to 1.1.1.11
external/public-domain/tz/dist/europe: up to 1.1.1.17
external/public-domain/tz/dist/leap-seconds.list: up to 1.1.1.7
external/public-domain/tz/dist/leapseconds: up to 1.1.1.8
external/public-domain/tz/dist/northamerica: up to 1.1.1.15
external/public-domain/tz/dist/southamerica: up to 1.1.1.11
external/public-domain/tz/dist/version: up to 1.1.1.4
external/public-domain/tz/dist/zone.tab: up to 1.1.1.11
external/public-domain/tz/dist/zone1970.tab: up to 1.1.1.13
Update to tzdata2017a.
@
text
@d9 1
a9 1
# From Paul Eggert (2017-01-13):
d16 2
a17 2
# Many years ago Gwillim Law wrote that a good source
# for time zone data was the International Air Transport
d38 3
a40 1
# The following alphabetic abbreviations appear in these tables:
d45 3
d49 1
d53 4
a56 1
# 8:30 KST KDT Korea when at +0830
a60 4
# Otherwise, these tables typically use numeric abbreviations like +03
# and +0330 for integer hour and minute UTC offsets. Although earlier
# editions invented alphabetic time zone abbreviations for every
# offset, this did not reflect common practice.
d68 1
a68 1
# Worldwide Edition).
d89 2
a90 2
4:00 - +04 1945
4:30 - +0430
d233 6
a238 5
6:30 - +0630 1942 May 15
5:30 - +0530 1942 Sep
6:30 - +0630 1951 Sep 30
6:00 - +06 2009
6:00 Dhaka +06/+07
d243 2
a244 2
5:30 - +0530 1987 Oct
6:00 - +06
d254 2
a255 2
5:00 - +05 1996
6:00 - +06
d260 2
a261 2
7:30 - +0730 1933
8:00 - +08
d270 3
a272 3
6:30 - +0630 1942 May
9:00 - +09 1945 May 3
6:30 - +0630
d335 1
a335 1
# From Paul Eggert (2017-01-05):
d393 1
a393 1
# Now part of Asia/Shanghai; its pre-1970 times are not recorded here.
d397 1
a397 1
# Now part of Asia/Shanghai.
d399 2
d404 2
a405 2
# Long-shu Time (probably as Long and Shu were two names of the area) UT +07
# Now part of Asia/Shanghai; its pre-1970 times are not recorded here.
d407 1
a407 1
# most of Gansu; west Inner Mongolia; east Qinghai; and the Guangdong
d412 3
a414 3
# This region is now part of either Asia/Urumqi or Asia/Shanghai with
# current boundaries uncertain; times before 1970 for areas that
# disagree with Ürümqi or Shanghai are not recorded here.
d425 1
a425 1
# This region is now in the same status as Xin-zang Time (see above).
d526 1
a526 1
6:00 - +06
d745 1
a745 1
8:00 - CST 1937 Oct 1
d751 14
a764 14
Rule Macau 1961 1962 - Mar Sun>=16 3:30 1:00 D
Rule Macau 1961 1964 - Nov Sun>=1 3:30 0 S
Rule Macau 1963 only - Mar Sun>=16 0:00 1:00 D
Rule Macau 1964 only - Mar Sun>=16 3:30 1:00 D
Rule Macau 1965 only - Mar Sun>=16 0:00 1:00 D
Rule Macau 1965 only - Oct 31 0:00 0 S
Rule Macau 1966 1971 - Apr Sun>=16 3:30 1:00 D
Rule Macau 1966 1971 - Oct Sun>=16 3:30 0 S
Rule Macau 1972 1974 - Apr Sun>=15 0:00 1:00 D
Rule Macau 1972 1973 - Oct Sun>=15 0:00 0 S
Rule Macau 1974 1977 - Oct Sun>=15 3:30 0 S
Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 D
Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 D
Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 S
d767 2
a768 1
8:00 Macau C%sT
d884 5
a888 4
8:00 - +08 1942 Feb 21 23:00
9:00 - +09 1976 May 3
8:00 - +08 2000 Sep 17 0:00
9:00 - +09
d903 1
a903 1
6:30 - +0630 1942 May 15
d905 1
a905 1
5:30 1:00 +0630 1945 Oct 15
d956 6
a961 6
7:20 - +0720 1932 Nov
7:30 - +0730 1942 Mar 23
9:00 - +09 1945 Sep 23
7:30 - +0730 1948 May
8:00 - +08 1950 May
7:30 - +0730 1964
d966 5
a970 5
7:30 - +0730 1942 Jan 29
9:00 - +09 1945 Sep 23
7:30 - +0730 1948 May
8:00 - +08 1950 May
7:30 - +0730 1964
d976 2
a977 2
8:00 - +08 1942 Feb 9
9:00 - +09 1945 Sep 23
d981 2
a982 2
9:00 - +09 1944 Sep 1
9:30 - +0930 1964
d1014 2
d1122 3
a1124 3
3:30 - +0330 1977 Nov
4:00 Iran +04/+05 1979
3:30 Iran +0330/+0430
d1167 2
a1168 2
3:00 - +03 1982 May
3:00 Iraq +03/+04
d1467 2
d1744 1
a1744 17
# From Stepan Golosunov (2016-11-08):
# Turgai reorganization should affect only southern part of Qostanay
# oblast. Which should probably be separated into Asia/Arkalyk zone.
# (There were also 1970, 1988 and 1990 Turgai oblast reorganizations
# according to wikipedia.)
#
# [For Qostanay] http://www.ng.kz/gazeta/195/hranit/
# suggests that clocks were to be moved 40 minutes backwards on
# 1920-01-01 to the fourth time belt. But I do not understand
# how that could happen....
#
# [For Atyrau and Oral] 1919 decree
# (http://www.worldtimezone.com/dst_news/dst_news_russia-1919-02-08.html
# and in Byalokoz) lists Ural river (plus 10 versts on its left bank) in
# the third time belt (before 1930 this means +03).
# From Paul Eggert (2016-12-06):
d1774 1
a1774 1
# Qostanay are unclear partly because of the 1997 Turgai
d1811 1
a1811 1
3:00 - +03 1930 Jun 21
d1823 1
a1823 1
3:00 - +03 1930 Jun 21
d1929 1
d1936 1
d1991 7
a1997 7
7:00 - +07 1933 Jan 1
7:00 0:20 +0720 1936 Jan 1
7:20 - +0720 1941 Sep 1
7:30 - +0730 1942 Feb 16
9:00 - +09 1945 Sep 12
7:30 - +0730 1982 Jan 1
8:00 - +08
d2004 5
a2008 4
7:30 - +0730 1933
8:00 NBorneo +08/+0820 1942 Feb 16
9:00 - +09 1945 Sep 12
8:00 - +08
d2014 1
a2014 1
5:00 - +05
a2140 4
# From Ganbold Tsagaankhuu (2017-02-09):
# Mongolian Government meeting has concluded today to cancel daylight
# saving time adoption in Mongolia. Source: http://zasag.mn/news/view/16192
d2147 2
a2148 2
Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 S
Rule Mongol 2015 2016 - Sep lastSat 0:00 0 -
d2153 2
a2154 2
6:00 - +06 1978
7:00 Mongol +07/+08
d2157 2
a2158 2
7:00 - +07 1978
8:00 Mongol +08/+09
d2162 4
a2165 4
7:00 - +07 1978
8:00 - +08 1983 Apr
9:00 Mongol +09/+10 2008 Mar 31
8:00 Mongol +08/+09
d2170 2
a2171 2
5:30 - +0530 1986
5:45 - +0545
d2320 4
a2323 4
5:30 - +0530 1942 Sep
5:30 1:00 +0630 1945 Oct 15
5:30 - +0530 1951 Sep 30
5:00 - +05 1971 Mar 26
d2688 3
a2690 3
8:00 Phil +08/+09 1942 May
9:00 - +09 1944 Nov
8:00 Phil +08/+09
d2695 2
a2696 2
4:00 - +04 1972 Jun
3:00 - +03
d2723 1
a2723 1
3:00 - +03
d2733 8
a2740 7
7:00 - +07 1933 Jan 1
7:00 0:20 +0720 1936 Jan 1
7:20 - +0720 1941 Sep 1
7:30 - +0730 1942 Feb 16
9:00 - +09 1945 Sep 12
7:30 - +0730 1982 Jan 1
8:00 - +08
d2799 2
a2800 2
5:30 0:30 +06 1942 Sep
5:30 1:00 +0630 1945 Oct 16 2:00
d2982 1
a2982 1
7:00 - +07
d2998 1
a2998 1
4:00 - +04
d3071 9
a3079 9
7:06:30 - PLMT 1911 May 1 # Phù Liễn MT
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 2
7:00 - +07 1947 Apr 1
8:00 - +08 1955 Jul 1
7:00 - +07 1959 Dec 31 23:00
8:00 - +08 1975 Jun 13
7:00 - +07
@
1.1.1.1.4.4.2.4
log
@Pull up following revision(s) (requested by kre in ticket #1519):
distrib/sets/lists/base/mi: 1.1164
doc/3RDPARTY: 1.2326 via patch
external/public-domain/tz/dist/CONTRIBUTING: up to 1.1.1.4
external/public-domain/tz/dist/LICENSE: up to 1.1.1.3
external/public-domain/tz/dist/Makefile: up to 1.1.1.18
external/public-domain/tz/dist/NEWS: up to 1.1.1.19
external/public-domain/tz/dist/TZDATA_VERSION: up to 1.9
external/public-domain/tz/dist/Theory: delete
external/public-domain/tz/dist/africa: up to 1.1.1.12
external/public-domain/tz/dist/antarctica: up to 1.1.1.9
external/public-domain/tz/dist/asia: up to 1.1.1.17
external/public-domain/tz/dist/australasia: up to 1.1.1.12
external/public-domain/tz/dist/backward: up to 1.1.1.8
external/public-domain/tz/dist/backzone: up to 1.1.1.12
external/public-domain/tz/dist/calendars: up to 1.1.1.1
external/public-domain/tz/dist/checklinks.awk: up to 1.1.1.3
external/public-domain/tz/dist/europe: up to 1.1.1.18
external/public-domain/tz/dist/leap-seconds.list: up to 1.1.1.8
external/public-domain/tz/dist/leapseconds: up to 1.1.1.9
external/public-domain/tz/dist/leapseconds.awk: up to 1.1.1.6
external/public-domain/tz/dist/northamerica: up to 1.1.1.17
external/public-domain/tz/dist/southamerica: up to 1.1.1.12
external/public-domain/tz/dist/theory.html: up to 1.1.1.1
external/public-domain/tz/dist/version: up to 1.1.1.6
external/public-domain/tz/dist/zishrink.awk: up to 1.1.1.1
external/public-domain/tz/dist/zone.tab: up to 1.1.1.12
external/public-domain/tz/dist/zone1970.tab: up to 1.1.1.14
Update tzdata to 2017c.
@
text
@d29 1
a29 1
# https://www.jstor.org/stable/1774359
d78 2
a79 2
Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 S
Rule RussiaAsia 1996 2010 - Oct lastSun 2:00s 0 -
a111 3
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 S
Rule Armenia 2011 only - Oct lastSun 2:00s 0 -
d118 1
a118 2
4:00 RussiaAsia +04/+05 2011
4:00 Armenia +04/+05
d130 1
a130 1
# https://www.azernews.az/azerbaijan/94137.html
d171 1
a171 1
# https://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601
d175 1
a175 1
# https://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html
a260 6
# From Paul Eggert (2017-04-20):
# Page 27 of Reed & Low (cited for Asia/Kolkata) says "Rangoon local time is
# used upon the railways and telegraphs of Burma, and is 6h. 24m. 47s. ahead
# of Greenwich." This refers to the period before Burma's transition to +0630,
# a transition for which Shanks is the only source.
d262 2
a263 2
Zone Asia/Yangon 6:24:47 - LMT 1880 # or Rangoon
6:24:47 - RMT 1920 # Rangoon local time
d320 1
a320 1
# https://www.astro.com/atlas site [with provinces and county
d472 1
a472 1
# https://content.time.com/time/magazine/article/0,9171,960684,00.html
d629 1
a629 1
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
d642 1
a642 1
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
a777 6
# From Paul Eggert (2017-10-18):
# Northern Cyprus will reinstate winter time on October 29, thus
# staying in sync with the rest of Cyprus. See: Anastasiou A.
# Cyprus to remain united in time. Cyprus Mail 2017-10-17.
# https://cyprus-mail.com/2017/10/17/cyprus-remain-united-time/
d795 1
a795 2
3:00 - +03 2017 Oct 29 1:00u
2:00 EUAsia EE%sT
d855 1
a855 1
# (1999-12-26/31):
d883 1
a883 1
# https://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/
d890 4
a893 45
# From Paul Eggert (2017-04-20):
# Good luck trying to nail down old timekeeping records in India.
# "... in the nineteenth century ... Madras Observatory took its magnetic
# measurements on Göttingen time, its meteorological measurements on Madras
# (local) time, dropped its time ball on Greenwich (ocean navigator's) time,
# and distributed civil (local time)." -- Bartky IR. Selling the true time:
# 19th-century timekeeping in america. Stanford U Press (2000), 247 note 19.
# "A more potent cause of resistance to the general adoption of the present
# standard time lies in the fact that it is Madras time. The citizen of
# Bombay, proud of being 'primus in Indis' and of Calcutta, equally proud of
# his city being the Capital of India, and - for a part of the year - the Seat
# of the Supreme Government, alike look down on Madras, and refuse to change
# the time they are using, for that of what they regard as a benighted
# Presidency; while Madras, having for long given the standard time to the
# rest of India, would resist the adoption of any other Indian standard in its
# place." -- Oldham RD. On Time in India: a suggestion for its improvement.
# Proceedings of the Asiatic Society of Bengal (April 1899), 49-55.
#
# "In 1870 ... Madras time - 'now used by the telegraph and regulated from the
# only government observatory' - was suggested as a standard railway time,
# first to be adopted on the Great Indian Peninsular Railway (GIPR)....
# Calcutta, Bombay, and Karachi, were to be allowed to continue with their
# local time for civil purposes." - Prasad R. Tracks of Change: Railways and
# Everyday Life in Colonial India. Cambridge University Press (2016), 145.
#
# Reed S, Low F. The Indian Year Book 1936-37. Bennett, Coleman, pp 27-8.
# https://archive.org/details/in.ernet.dli.2015.282212
# This lists +052110 as Madras local time used in railways, and says that on
# 1906-01-01 railways and telegraphs in India switched to +0530. Some
# municipalities retained their former time, and the time in Calcutta
# continued to depend on whether you were at the railway station or at
# government offices. Government time was at +055320 (according to Shanks) or
# at +0554 (according to the Indian Year Book). Railway time is more
# appropriate for our purposes, as it was better documented, it is what we do
# elsewhere (e.g., Europe/London before 1880), and after 1906 it was
# consistent in the region now identified by Asia/Kolkata. So, use railway
# time for 1870-1941. Shanks is our only (and dubious) source for the
# 1941-1945 data.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kolkata 5:53:28 - LMT 1854 Jun 28 # Kolkata
5:53:20 - HMT 1870 # Howrah Mean Time?
5:21:10 - MMT 1906 Jan 1 # Madras local time
5:30 - IST 1941 Oct
5:30 1:00 +0630 1942 May 15
d897 1
a897 1
# Since 1970 the following are like Asia/Kolkata:
d1039 1
a1039 1
# https://uk.reuters.com/article/oilRpt/idUKBLA65048420070916
d1138 1
a1138 1
# https://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
d1446 1
a1446 1
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
d1451 1
a1451 1
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
d1513 1
a1513 1
# https://www.timeanddate.com/news/time/jordan-reverses-dst-decision.html
d1871 1
a1871 1
# https://mm.icann.org/pipermail/tz/2014-October/021830.html
d1873 1
a1873 1
# https://ko.wikipedia.org/wiki/한국_표준시
d2095 1
a2095 1
# https://www.timeanddate.com/worldclock/city.html?n=1026
d2225 1
a2225 1
# http://www.worldtimezone.com/dst_news/dst_news_pakistan01.html
d2291 1
a2291 1
# https://www.timeanddate.com/news/time/pakistan-ends-dst09.html
d2473 1
a2473 1
# https://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html
d2511 1
a2511 1
# https://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html
d2521 1
a2521 1
# https://www.timeanddate.com/news/time/palestine-dst-2011.html
d2531 1
a2531 1
# https://www.jpost.com/MiddleEast/Article.aspx?id=235650
d2552 1
a2552 1
# https://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html
d2572 1
a2572 1
# and https://www.raya.ps/ar/news/890705.html say Palestine areas will
d2576 1
a2576 1
# https://www.timeanddate.com/time/change/west-bank/ramallah?year=2014
d2600 2
a2601 2
# https://www.timeanddate.com/time/change/gaza-strip/gaza
# https://www.timeanddate.com/time/change/west-bank/hebron
d2664 1
a2664 1
# https://www.staff.science.uu.nl/~gent0113/idl/idl_philippines.htm
d2928 1
a2928 1
# https://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html
d2955 1
a2955 1
# https://www.timeanddate.com/news/time/syria-dst-2012.html
d3038 1
a3038 1
# https://mm.icann.org/pipermail/tz/2014-October/021654.html
@
1.1.1.1.4.4.2.5
log
@Pull up the following revisions, requested by kre in tickt #1589:
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.1
external/public-domain/tz/dist/CONTRIBUTING up to 1.1.1.5
external/public-domain/tz/dist/Makefile up to 1.1.1.20
external/public-domain/tz/dist/NEWS up to 1.1.1.21
external/public-domain/tz/dist/README up to 1.1.1.6
external/public-domain/tz/dist/TZDATA_VERSION up to 1.11
external/public-domain/tz/dist/africa up to 1.1.1.14
external/public-domain/tz/dist/antarctica up to 1.1.1.10
external/public-domain/tz/dist/asia up to 1.1.1.19
external/public-domain/tz/dist/australasia up to 1.1.1.14
external/public-domain/tz/dist/backzone up to 1.1.1.14
external/public-domain/tz/dist/checktab.awk up to 1.1.1.9
external/public-domain/tz/dist/europe up to 1.1.1.20
external/public-domain/tz/dist/leap-seconds.list up to 1.1.1.9
external/public-domain/tz/dist/leapseconds up to 1.1.1.10
external/public-domain/tz/dist/northamerica up to 1.1.1.19
external/public-domain/tz/dist/southamerica up to 1.1.1.14
external/public-domain/tz/dist/theory.html up to 1.1.1.3
external/public-domain/tz/dist/version up to 1.1.1.8
external/public-domain/tz/dist/zishrink.awk up to 1.1.1.3
external/public-domain/tz/dist/zone.tab up to 1.1.1.14
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.16
Update of /cvsroot/src/external/public-domain/tz/dist
In directory ivanova.netbsd.org:/tmp/cvs-serv18468
Log Message:
Import tzdata2018d from ftp://ftp.iana.org/tz/releases/tzdata2018d.tar.gz
Summary of changes in tzdata2018d (2018-03-22 07:05:46 -0700):
In 2018, Palestine starts DST on March 24 (today!), not March 31
Casey Station in Antarctica changed from +11 to +08 on 2018-03-11
at 04:00.
Various adjustments to some historical conversions (several for
Uruguay (1920 .. 1990), one fpr Enderbury and Kiritimati (1994/5),
one for Portugal and colonies (1912) and Jamaica and Turks & Caicos
(pre 1913)).
@
text
@d53 1
a53 1
# and +0330 for integer hour and minute UT offsets. Although earlier
d72 1
a72 1
Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 -
d75 1
a75 1
Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 -
d78 1
a78 1
Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 -
d113 1
a113 1
Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 -
d139 1
a139 1
Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 -
d226 1
a226 1
Rule Dhaka 2009 only - Jun 19 23:00 1:00 -
d650 1
a650 1
# (UT+9). The adoption began on Oct 1, 1937. The original text can
d654 1
a654 1
# That is, the time zone of Taipei switched to UT+9 on Oct 1, 1937.
d657 2
a658 2
# I've found more evidence about when the time zone was switched from UT+9
# back to UT+8 after WW2. I believe it was on Sep 21, 1945. In a document
d660 1
a660 1
# zone back to Western Standard Time (UT+8) on Sep 21. And in another
a766 1
# See Europe/Lisbon for info about the 1912 transition.
d768 1
a768 1
Zone Asia/Macau 7:34:20 - LMT 1911 Dec 31 16:00u
d1109 47
a1155 47
Rule Iran 1978 1980 - Mar 21 0:00 1:00 -
Rule Iran 1978 only - Oct 21 0:00 0 -
Rule Iran 1979 only - Sep 19 0:00 0 -
Rule Iran 1980 only - Sep 23 0:00 0 -
Rule Iran 1991 only - May 3 0:00 1:00 -
Rule Iran 1992 1995 - Mar 22 0:00 1:00 -
Rule Iran 1991 1995 - Sep 22 0:00 0 -
Rule Iran 1996 only - Mar 21 0:00 1:00 -
Rule Iran 1996 only - Sep 21 0:00 0 -
Rule Iran 1997 1999 - Mar 22 0:00 1:00 -
Rule Iran 1997 1999 - Sep 22 0:00 0 -
Rule Iran 2000 only - Mar 21 0:00 1:00 -
Rule Iran 2000 only - Sep 21 0:00 0 -
Rule Iran 2001 2003 - Mar 22 0:00 1:00 -
Rule Iran 2001 2003 - Sep 22 0:00 0 -
Rule Iran 2004 only - Mar 21 0:00 1:00 -
Rule Iran 2004 only - Sep 21 0:00 0 -
Rule Iran 2005 only - Mar 22 0:00 1:00 -
Rule Iran 2005 only - Sep 22 0:00 0 -
Rule Iran 2008 only - Mar 21 0:00 1:00 -
Rule Iran 2008 only - Sep 21 0:00 0 -
Rule Iran 2009 2011 - Mar 22 0:00 1:00 -
Rule Iran 2009 2011 - Sep 22 0:00 0 -
Rule Iran 2012 only - Mar 21 0:00 1:00 -
Rule Iran 2012 only - Sep 21 0:00 0 -
Rule Iran 2013 2015 - Mar 22 0:00 1:00 -
Rule Iran 2013 2015 - Sep 22 0:00 0 -
Rule Iran 2016 only - Mar 21 0:00 1:00 -
Rule Iran 2016 only - Sep 21 0:00 0 -
Rule Iran 2017 2019 - Mar 22 0:00 1:00 -
Rule Iran 2017 2019 - Sep 22 0:00 0 -
Rule Iran 2020 only - Mar 21 0:00 1:00 -
Rule Iran 2020 only - Sep 21 0:00 0 -
Rule Iran 2021 2023 - Mar 22 0:00 1:00 -
Rule Iran 2021 2023 - Sep 22 0:00 0 -
Rule Iran 2024 only - Mar 21 0:00 1:00 -
Rule Iran 2024 only - Sep 21 0:00 0 -
Rule Iran 2025 2027 - Mar 22 0:00 1:00 -
Rule Iran 2025 2027 - Sep 22 0:00 0 -
Rule Iran 2028 2029 - Mar 21 0:00 1:00 -
Rule Iran 2028 2029 - Sep 21 0:00 0 -
Rule Iran 2030 2031 - Mar 22 0:00 1:00 -
Rule Iran 2030 2031 - Sep 22 0:00 0 -
Rule Iran 2032 2033 - Mar 21 0:00 1:00 -
Rule Iran 2032 2033 - Sep 21 0:00 0 -
Rule Iran 2034 2035 - Mar 22 0:00 1:00 -
Rule Iran 2034 2035 - Sep 22 0:00 0 -
d1162 2
a1163 2
Rule Iran 2036 max - Mar 21 0:00 1:00 -
Rule Iran 2036 max - Sep 21 0:00 0 -
d1199 6
a1204 6
Rule Iraq 1982 only - May 1 0:00 1:00 -
Rule Iraq 1982 1984 - Oct 1 0:00 0 -
Rule Iraq 1983 only - Mar 31 0:00 1:00 -
Rule Iraq 1984 1985 - Apr 1 0:00 1:00 -
Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 -
Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 -
d1208 2
a1209 2
Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 -
Rule Iraq 1991 2007 - Oct 1 3:00s 0 -
d1467 11
a1477 11
# From Takayuki Nikai (2018-01-19):
# The source of information is Japanese law.
# http://www.shugiin.go.jp/internet/itdb_housei.nsf/html/houritsu/00219480428029.htm
# http://www.shugiin.go.jp/internet/itdb_housei.nsf/html/houritsu/00719500331039.htm
# ... In summary, it is written as follows. From 24:00 on the first Saturday
# in May, until 0:00 on the day after the second Saturday in September.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Japan 1948 only - May Sat>=1 24:00 1:00 D
Rule Japan 1948 1951 - Sep Sun>=9 0:00 0 S
Rule Japan 1949 only - Apr Sat>=1 24:00 1:00 D
Rule Japan 1950 1951 - May Sat>=1 24:00 1:00 D
d1481 2
a1482 1
# Observatory: 139° 44' 40.90" E (9h 18m 58.727s), 35° 39' 16.0" N.
d1490 1
a1490 1
# which stands for the time on 135° E.
d1493 1
a1493 1
# time", which stands for the time on 120° E.... But "western standard
d1508 1
a1508 1
# Central Time (UT+9). The adoption began on Oct 1, 1937.
d1906 1
a1906 1
Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 -
d1908 1
a1908 1
Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 -
d2040 1
a2040 1
Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 -
d2069 2
a2070 2
Zone Indian/Maldives 4:54:00 - LMT 1880 # Malé
4:54:00 - MMT 1960 # Malé Mean Time
d2185 1
a2185 1
Rule Mongol 1983 1984 - Apr 1 0:00 1:00 -
d2202 1
a2202 1
Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 -
d2205 1
a2205 1
Rule Mongol 2001 only - Apr lastSat 2:00 1:00 -
d2207 2
a2208 2
Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 -
Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 -
d2642 3
a2660 10
# From Sharef Mustafa (2018-03-16):
# Palestine summer time will start on Mar 24th 2018 by advancing the
# clock by 60 minutes as per Palestinian cabinet decision published on
# the offical website, though the decree did not specify the exact
# time of the time shift.
# http://www.palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e7a42ab7-ee23-435a-b9c8-a4f7e81f3817
#
# From Paul Eggert (2018-03-16):
# For 2016 on, predict spring transitions on March's fourth Saturday at 01:00.
d2690 1
a2690 1
Rule Palestine 2016 max - Mar Sat>=22 1:00 1:00 S
d2740 1
a2740 1
Rule Phil 1936 only - Nov 1 0:00 1:00 -
d2742 1
a2742 1
Rule Phil 1954 only - Apr 12 0:00 1:00 -
d2744 1
a2744 1
Rule Phil 1978 only - Mar 22 0:00 1:00 -
d3100 1
a3100 1
# Phù Liễn Observatory, legally 104° 17' 17" east of Paris.
d3102 1
a3102 1
# the Paris Meridian (2° 20' 14.03" E); the former yields 07:06:30.1333...
@
1.1.1.1.4.4.2.6
log
@Sync external/public-domain/tz/dist to current, requested by kre
in ticket #1644:
external/public-domain/tz/dist/CONTRIBUTING up to 1.1.1.6
external/public-domain/tz/dist/Makefile up to 1.1.1.22
external/public-domain/tz/dist/NEWS up to 1.1.1.24
external/public-domain/tz/dist/README up to 1.1.1.7
external/public-domain/tz/dist/TZDATA_VERSION up to 1.14
external/public-domain/tz/dist/africa up to 1.1.1.17
external/public-domain/tz/dist/antarctica up to 1.1.1.11
external/public-domain/tz/dist/asia up to 1.1.1.21
external/public-domain/tz/dist/australasia up to 1.1.1.16
external/public-domain/tz/dist/backward up to 1.1.1.9
external/public-domain/tz/dist/backzone up to 1.1.1.15
external/public-domain/tz/dist/etcetera up to 1.1.1.3
external/public-domain/tz/dist/europe up to 1.1.1.23
external/public-domain/tz/dist/factory up to 1.1.1.3
external/public-domain/tz/dist/leap-seconds.list up to 1.1.1.10
external/public-domain/tz/dist/leapseconds up to 1.1.1.11
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.7
external/public-domain/tz/dist/northamerica up to 1.1.1.21
external/public-domain/tz/dist/pacificnew up to 1.1.1.2
external/public-domain/tz/dist/southamerica up to 1.1.1.15
external/public-domain/tz/dist/systemv up to 1.1.1.2
external/public-domain/tz/dist/theory.html up to 1.1.1.6
external/public-domain/tz/dist/version up to 1.1.1.11
external/public-domain/tz/dist/yearistype.sh up to 1.1.1.2
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.3
external/public-domain/tz/dist/zishrink.awk up to 1.1.1.5
external/public-domain/tz/dist/zone.tab up to 1.1.1.15
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.17
external/public-domain/tz/dist/zoneinfo2tdf.pl up to 1.1.1.2
doc/3RDPARTY (apply patch)
Import tzdata2018f from ftp://ftp.iana.org/tz/releases/tzdata2018f.tar.gz
Volgograd moves from +03 to +04 on 2018-10-28.
Fiji ends DST 2019-01-13, not 2019-01-20.
Most of Chile changes DST dates, effective 2019-04-06.
Plus corrections to North Korea's 2018-05-05 and China's April 1988
updates (getting the actual time/date of the transition correct)
Corrections for Macau pre 1992, Japan in late 1940's - early 1950's,
and China (Shanghai) 1940's. The Phillipines get their timezone
name abbreviations back.
-
Import tzdata2018g from ftp://ftp.iana.org/tz/releases/tzdata2018g.tar.gz
Summary of changes in tzdata2018g (2018-10-26 22:22:45 -0700):
Morocco switches to permanent +01 on 2018-10-27.
@
text
@a0 2
# tzdb data for Asia and environs
d9 1
a9 1
# From Paul Eggert (2018-06-19):
d38 1
a38 2
# The following alphabetic abbreviations appear in these tables
# (corrections are welcome):
a46 1
# 8:00 PST PDT* Philippine Standard Time
a51 1
# *I invented the abbreviation PDT; see "Philippines" below.
a283 23
# From Paul Eggert (2018-10-02):
# The following comes from Table 1 of:
# Li Yu. Research on the daylight saving movement in 1940s Shanghai.
# Nanjing Journal of Social Sciences. 2014;(2):144-50.
# http://oversea.cnki.net/kns55/detail.aspx?dbname=CJFD2014&filename=NJSH201402020
# The table lists dates only; I am guessing 00:00 and 24:00 transition times.
# Also, the table lists the planned end of DST in 1949, but the corresponding
# zone line cuts this off on May 28, when the Communists took power.
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Shang 1940 only - Jun 1 0:00 1:00 D
Rule Shang 1940 only - Oct 12 24:00 0 S
Rule Shang 1941 only - Mar 15 0:00 1:00 D
Rule Shang 1941 only - Nov 1 24:00 0 S
Rule Shang 1942 only - Jan 31 0:00 1:00 D
Rule Shang 1945 only - Sep 1 24:00 0 S
Rule Shang 1946 only - May 15 0:00 1:00 D
Rule Shang 1946 only - Sep 30 24:00 0 S
Rule Shang 1947 only - Apr 15 0:00 1:00 D
Rule Shang 1947 only - Oct 31 24:00 0 S
Rule Shang 1948 1949 - May 1 0:00 1:00 D
Rule Shang 1948 1949 - Sep 30 24:00 0 S #plan
d310 12
a321 27
# From P Chan (2018-05-07):
# The start and end time of DST in China [from 1986 on] should be 2:00
# (i.e. 2:00 to 3:00 at the start and 2:00 to 1:00 at the end)....
# Government notices about summer time:
#
# 1986-04-12 http://www.zj.gov.cn/attach/zfgb/198608.pdf p.21-22
# (To establish summer time from 1986. On 4 May, set the clocks ahead one hour
# at 2 am. On 14 September, set the clocks backward one hour at 2 am.)
#
# 1987-02-15 http://www.gov.cn/gongbao/shuju/1987/gwyb198703.pdf p.114
# (Summer time in 1987 to start from 12 April until 13 September)
#
# 1987-09-09 http://www.gov.cn/gongbao/shuju/1987/gwyb198721.pdf p.709
# (From 1988, summer time to start from 2 am of the first Sunday of mid-April
# until 2 am of the first Sunday of mid-September)
#
# 1992-03-03 http://www.gov.cn/gongbao/shuju/1992/gwyb199205.pdf p.152
# (To suspend summer time from 1992)
#
# The first page of People's Daily on 12 April 1988 stating that summer time
# to begin on 17 April.
# http://data.people.com.cn/pic/101p/1988/04/1988041201.jpg
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule PRC 1986 only - May 4 2:00 1:00 D
Rule PRC 1986 1991 - Sep Sun>=11 2:00 0 S
Rule PRC 1987 1991 - Apr Sun>=11 2:00 1:00 D
d343 1
a343 1
# Guo Qing-sheng (National Time-Service Center, CAS, Xi'an 710600, China)
d346 1
a346 2
# (Zhongguo ke ji shi liao, 中国科技史料). 2003;24(1):5-9.
# http://oversea.cnki.net/kcms/detail/detail.aspx?filename=ZGKS200301000&dbname=CJFD2003
d523 1
a523 1
8:00 Shang C%sT 1949 May 28
d752 18
a769 134
#
# From P Chan (2018-05-10):
# * LegisMac
# http://legismac.safp.gov.mo/legismac/descqry/Descqry.jsf?lang=pt
# A database for searching titles of legal documents of Macau in
# Chinese and Portuguese. The term "HORÁRIO DE VERÃO" can be used for
# searching decrees about summer time.
# * Archives of Macao
# http://www.archives.gov.mo/en/bo/
# It contains images of old official gazettes.
# * The Macao Meteorological and Geophysical Bureau have a page listing the
# summer time history. But it is not complete and has some mistakes.
# http://www.smg.gov.mo/smg/geophysics/e_t_Summer%20Time.htm
# Macau adopted GMT+8 on 30 Oct 1904 to follow Hong Kong. Clocks were
# advanced by 25 minutes and 50 seconds. Which means the LMT used was
# +7:34:10. As stated in the "Portaria No. 204" dated 21 October 1904
# and published in the Official Gazette on 29 October 1904.
# http://igallery.icm.gov.mo/Images/Archives/BO/MO_AH_PUB_BO_1904_10/MO_AH_PUB_BO_1904_10_00025_Grey.JPG
#
# Therefore the 1911 decree of Portugal did not change time in Macau.
#
# From LegisMac, here is a list of decrees that changed the time ...
# [Decree Gazette-no. date; titles omitted in this quotation]
# DIL 732 BOCM 51 1941.12.20
# DIL 764 BOCM 9S 1942.04.30
# DIL 781 BOCM 21 1942.10.10
# PT 3434 BOCM 8S 1943.04.17
# PT 3504 BOCM 20 1943.09.25
# PT 3843 BOCM 39 1945.09.29
# PT 3961 BOCM 17 1946.04.27
# PT 4026 BOCM 39 1946.09.28
# PT 4153 BOCM 16 1947.04.10
# PT 4271 BOCM 48 1947.11.29
# PT 4374 BOCM 18 1948.05.01
# PT 4465 BOCM 44 1948.10.30
# PT 4590 BOCM 14 1949.04.02
# PT 4666 BOCM 44 1949.10.29
# PT 4771 BOCM 12 1950.03.25
# PT 4838 BOCM 43 1950.10.28
# PT 4946 BOCM 12 1951.03.24
# PT 5025 BO 43 1951.10.27
# PT 5149 BO 14 1952.04.05
# PT 5251 BO 43 1952.10.25
# PT 5366 BO 13 1953.03.28
# PT 5444 BO 44 1953.10.31
# PT 5540 BO 12 1954.03.20
# PT 5589 BO 44 1954.10.30
# PT 5676 BO 12 1955.03.19
# PT 5739 BO 45 1955.11.05
# PT 5823 BO 11 1956.03.17
# PT 5891 BO 44 1956.11.03
# PT 5981 BO 12 1957.03.23
# PT 6064 BO 43 1957.10.26
# PT 6172 BO 12 1958.03.22
# PT 6243 BO 43 1958.10.25
# PT 6341 BO 12 1959.03.21
# PT 6411 BO 43 1959.10.24
# PT 6514 BO 11 1960.03.12
# PT 6584 BO 44 1960.10.29
# PT 6721 BO 10 1961.03.11
# PT 6815 BO 43 1961.10.28
# PT 6947 BO 10 1962.03.10
# PT 7080 BO 43 1962.10.27
# PT 7218 BO 12 1963.03.23
# PT 7340 BO 43 1963.10.26
# PT 7491 BO 11 1964.03.14
# PT 7664 BO 43 1964.10.24
# PT 7846 BO 15 1965.04.10
# PT 7979 BO 42 1965.10.16
# PT 8146 BO 15 1966.04.09
# PT 8252 BO 41 1966.10.08
# PT 8429 BO 15 1967.04.15
# PT 8540 BO 41 1967.10.14
# PT 8735 BO 15 1968.04.13
# PT 8860 BO 41 1968.10.12
# PT 9035 BO 16 1969.04.19
# PT 9156 BO 42 1969.10.18
# PT 9328 BO 15 1970.04.11
# PT 9418 BO 41 1970.10.10
# PT 9587 BO 14 1971.04.03
# PT 9702 BO 41 1971.10.09
# PT 38-A/72 BO 14 1972.04.01
# PT 126-A/72 BO 41 1972.10.07
# PT 61/73 BO 14 1973.04.07
# PT 182/73 BO 40 1973.10.06
# PT 282/73 BO 51 1973.12.22
# PT 177/74 BO 41 1974.10.12
# PT 51/75 BO 15 1975.04.12
# PT 173/75 BO 41 1975.10.11
# PT 67/76/M BO 14 1976.04.03
# PT 169/76/M BO 41 1976.10.09
# PT 78/79/M BO 19 1979.05.12
# PT 166/79/M BO 42 1979.10.20
# Note that DIL 732 does not belong to "HORÁRIO DE VERÃO" according to
# LegisMac.... Note that between 1942 and 1945, the time switched
# between GMT+9 and GMT+10. Also in 1965 and 1965 the DST ended at 2:30am.
# From Paul Eggert (2018-05-10):
# The 1904 decree says that Macau changed from the meridian of
# Fortaleza do Monte, presumably the basis for the 7:34:10 for LMT.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Macau 1942 1943 - Apr 30 23:00 1:00 -
Rule Macau 1942 only - Nov 17 23:00 0 -
Rule Macau 1943 only - Sep 30 23:00 0 S
Rule Macau 1946 only - Apr 30 23:00s 1:00 D
Rule Macau 1946 only - Sep 30 23:00s 0 S
Rule Macau 1947 only - Apr 19 23:00s 1:00 D
Rule Macau 1947 only - Nov 30 23:00s 0 S
Rule Macau 1948 only - May 2 23:00s 1:00 D
Rule Macau 1948 only - Oct 31 23:00s 0 S
Rule Macau 1949 1950 - Apr Sat>=1 23:00s 1:00 D
Rule Macau 1949 1950 - Oct lastSat 23:00s 0 S
Rule Macau 1951 only - Mar 31 23:00s 1:00 D
Rule Macau 1951 only - Oct 28 23:00s 0 S
Rule Macau 1952 1953 - Apr Sat>=1 23:00s 1:00 D
Rule Macau 1952 only - Nov 1 23:00s 0 S
Rule Macau 1953 1954 - Oct lastSat 23:00s 0 S
Rule Macau 1954 1956 - Mar Sat>=17 23:00s 1:00 D
Rule Macau 1955 only - Nov 5 23:00s 0 S
Rule Macau 1956 1964 - Nov Sun>=1 03:30 0 S
Rule Macau 1957 1964 - Mar Sun>=18 03:30 1:00 D
Rule Macau 1965 1973 - Apr Sun>=16 03:30 1:00 D
Rule Macau 1965 1966 - Oct Sun>=16 02:30 0 S
Rule Macau 1967 1976 - Oct Sun>=16 03:30 0 S
Rule Macau 1973 only - Dec 30 03:30 1:00 D
Rule Macau 1975 1976 - Apr Sun>=16 03:30 1:00 D
Rule Macau 1979 only - May 13 03:30 1:00 D
Rule Macau 1979 only - Oct Sun>=16 03:30 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Macau 7:34:10 - LMT 1904 Oct 30
8:00 - CST 1941 Dec 21 23:00
9:00 Macau +09/+10 1945 Sep 30 24:00
a1473 20
# From Phake Nick (2018-09-27):
# [T]he webpage authored by National Astronomical Observatory of Japan
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EF.html
# ... mentioned that using Showa 23 (year 1948) as example, 13pm of September
# 11 in summer time will equal to 0am of September 12 in standard time.
# It cited a document issued by the Liaison Office which briefly existed
# during the postwar period of Japan, where the detail on implementation
# of the summer time is described in the document.
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EFB2C6BBFEB9EFA4CEBCC2BBDCA4CBA4C4A4A4A4C6.pdf
# The text in the document do instruct a fall back to occur at
# September 11, 13pm in summer time, while ordinary citizens can
# change the clock before they sleep.
#
# From Paul Eggert (2018-09-27):
# This instruction is equivalent to "Sat>=8 25:00", so use that. zic treats
# it like "Sun>=9 01:00", which is not quite the same but is the best we can
# do in any POSIX or C platform. The "25:00" assumes zic from 2007 or later,
# which should be safe now.
d1476 1
a1476 1
Rule Japan 1948 1951 - Sep Sat>=8 25:00 0 S
d1858 1
a1858 1
# so include timestamps before 1963.
a1985 17
# From Kang Seonghoon (2018-04-29):
# North Korea will revert its time zone from UTC+8:30 (PYT; Pyongyang
# Time) back to UTC+9 (KST; Korea Standard Time).
#
# From Seo Sanghyeon (2018-04-30):
# Rodong Sinmun 2018-04-30 announced Pyongyang Time transition plan.
# https://www.nknews.org/kcna/wp-content/uploads/sites/5/2018/04/rodong-2018-04-30.pdf
# ... the transition date is 2018-05-05 ... Citation should be Decree
# No. 2232 of April 30, 2018, of the Presidium of the Supreme People's
# Assembly, as published in Rodong Sinmun.
# From Tim Parenti (2018-04-29):
# It appears to be the front page story at the top in the right-most column.
#
# From Paul Eggert (2018-05-04):
# The BBC reported that the transition was from 23:30 to 24:00 today.
# https://www.bbc.com/news/world-asia-44010705
d1997 1
a1997 2
8:30 - KST 2018 May 4 23:30
9:00 - KST
d2661 1
a2661 1
# the official website, though the decree did not specify the exact
d2746 7
a2752 23
# From Paul Goyette (2018-06-15):
# In the Philippines, there is a national law, Republic Act No. 10535
# which declares the official time here as "Philippine Standard Time".
# The act [1] even specifies use of PST as the abbreviation, although
# the FAQ provided by PAGASA [2] uses the "acronym PhST to distinguish
# it from the Pacific Standard Time (PST)."
# [1] http://www.officialgazette.gov.ph/2013/05/15/republic-act-no-10535/
# [2] https://www1.pagasa.dost.gov.ph/index.php/astronomy/philippine-standard-time#republic-act-10535
#
# From Paul Eggert (2018-06-19):
# I surveyed recent news reports, and my impression is that "PST" is
# more popular among reliable English-language news sources. This is
# not just a measure of Google hit counts: it's also the sizes and
# influence of the sources. There is no current abbreviation for DST,
# so use "PDT", the usual American style.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Phil 1936 only - Nov 1 0:00 1:00 D
Rule Phil 1937 only - Feb 1 0:00 0 S
Rule Phil 1954 only - Apr 12 0:00 1:00 D
Rule Phil 1954 only - Jul 1 0:00 0 S
Rule Phil 1978 only - Mar 22 0:00 1:00 D
Rule Phil 1978 only - Sep 21 0:00 0 S
d2756 3
a2758 3
8:00 Phil P%sT 1942 May
9:00 - JST 1944 Nov
8:00 Phil P%sT
d2769 1
a2769 1
# From Paul Eggert (2018-08-29):
d2771 1
a2771 1
# standardized until 1968 or so; we don't know exactly when, and possibly it
a2777 19
# Timekeeping differed depending on who you were and which part of Saudi
# Arabia you were in. In 1969, Elias Antar wrote that although a common
# practice had been to set one's watch to 12:00 (i.e., midnight) at sunset -
# which meant that the time on one side of a mountain could differ greatly from
# the time on the other side - many foreigners set their watches to 6pm
# instead, while airlines instead used UTC +03 (except in Dhahran, where they
# used UTC +04), Aramco used UTC +03 with DST, and the Trans-Arabian Pipe Line
# Company used Aramco time in eastern Saudi Arabia and airline time in western.
# (The American Military Aid Advisory Group used plain UTC.) Antar writes,
# "A man named Higgins, so the story goes, used to run a local power
# station. One day, the whole thing became too much for Higgins and he
# assembled his staff and laid down the law. 'I've had enough of this,' he
# shrieked. 'It is now 12 o'clock Higgins Time, and from now on this station is
# going to run on Higgins Time.' And so, until last year, it did." See:
# Antar E. Dinner at When? Saudi Aramco World, 1969 March/April. 2-3.
# http://archive.aramcoworld.com/issue/196902/dinner.at.when.htm
# newspapers.com says a similar story about Higgins was published in the Port
# Angeles (WA) Evening News, 1965-03-10, page 5, but I lack access to the text.
#
d2787 1
a2787 2
# the country. Presumably this is documenting airline time. Ignore this,
# as it's before our 1970 cutoff.
@
1.1.1.1.4.4.2.7
log
@Pull up the following, requested by kre in ticket #1670:
external/public-domain/tz/dist/Makefile up to 1.1.1.23
external/public-domain/tz/dist/NEWS up to 1.1.1.26
external/public-domain/tz/dist/TZDATA_VERSION up to 1.16
external/public-domain/tz/dist/africa up to 1.1.1.19
external/public-domain/tz/dist/asia up to 1.1.1.22
external/public-domain/tz/dist/australasia up to 1.1.1.17
external/public-domain/tz/dist/leapseconds up to 1.1.1.12
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.8
external/public-domain/tz/dist/northamerica up to 1.1.1.22
external/public-domain/tz/dist/theory.html up to 1.1.1.7
external/public-domain/tz/dist/version up to 1.1.1.13
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.4
external/public-domain/tz/dist/zone.tab up to 1.1.1.16
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.18
distrib/sets/lists/base/mi (patch)
doc/3RDPARTY (patch)
Import tzdata2018h from ftp://ftp.iana.org/tz/releases/tzdata2018h.tar.gz
Summary of changes in tzdata2018h (2018-12-23 17:59:32 -0800):
Qyzylorda (aka Kyzylorda) oblast in Kazakhstan moved from +06 to
+05 on 2018-12-21. This is a zone split as Qostanay (aka
Kostanay) did not switch, so create a zone Asia/Qostanay.
Metlakatla, Alaska observes PST this winter only.
Add predictions for Iran from 2038 through 2090.
Changes to some old timestamps for Nauru (1979) Guam (1959-77),
Hong Kong (1904, 1941, 1945, 1952) (others in Pacific during WWII)
---
Merge tzdata2018h
---
Update to tzdata2018h (new zone Asia/Qostanay)
---
Import tzdata2018i from ftp://ftp.iana.org/tz/releases/tzdata2018i.tar.gz
Summary of changes in tzdata2018i (2018-12-30 11:05:43 -0800):
Due to a change in government, Sao Tome and Principe switches back
from +01 to +00 on 2019-01-01 at 02:00.
---
Merge tzdata2018i
---
Update to tzdata2018i
@
text
@d589 1
a589 71
# From Phake Nick (2018-10-27):
# According to Singaporean newspaper
# http://eresources.nlb.gov.sg/newspapers/Digitised/Article/singfreepresswk19041102-1.2.37
# the day that Hong Kong start using GMT+8 should be Oct 30, 1904.
#
# From Paul Eggert (2018-11-17):
# Hong Kong had a time ball near the Marine Police Station, Tsim Sha Tsui.
# "The ball was raised manually each day and dropped at exactly 1pm
# (except on Sundays and Government holidays)."
# Dyson AD. From Time Ball to Atomic Clock. Hong Kong Government. 1983.
#
# "From 1904 October 30 the time-ball at Hong Kong has been dropped by order
# of the Governor of the Colony at 17h 0m 0s G.M.T., which is 23m 18s.14 in
# advance of 1h 0m 0s of Hong Kong mean time."
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc.
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382
#
# From Joseph Myers (2018-11-18):
# An astronomer before 1925 referring to GMT would have been using the old
# astronomical convention where the day started at noon, not midnight.
#
# From Steve Allen (2018-11-17):
# Meteorological Observations made at the Hongkong Observatory in the year 1904
# page 4
# ... the log of drop times in Table II shows that on Sunday 1904-10-30 the
# ball was dropped. So that looks like a special case drop for the sake
# of broadcasting the new local time.
#
# From Phake Nick (2018-11-18):
# According to The Hong Kong Weekly Press, 1904-10-29, p.324, the
# governor of Hong Kong at the time stated that "We are further desired to
# make it known that the change will be effected by firing the gun and by the
# dropping of the Ball at 23min. 18sec. before one."
# From Paul Eggert (2018-11-18):
# See for this; unfortunately Flash is required.
# From Phake Nick (2018-10-26):
# I went to check microfilm records stored at Hong Kong Public Library....
# on September 30 1941, according to Ta Kung Pao (Hong Kong edition), it was
# stated that fallback would occur on the next day (the 1st)'s "03:00 am (Hong
# Kong Time 04:00 am)" and the clock will fall back for a half hour. (03:00
# probably refer to the time commonly used in mainland China at the time given
# the paper's background) ... the sunrise/sunset time given by South China
# Morning Post for October 1st was indeed moved by half an hour compares to
# before. After that, in December, the battle to capture Hong Kong started and
# the library doesn't seems to have any record stored about press during that
# period of time. Some media resumed publication soon after that within the
# same month, but there were not much information about time there. Later they
# started including a radio program guide when they restored radio service,
# explicitly mentioning it use Tokyo standard time, and later added a note
# saying it's half an hour ahead of the old Hong Kong standard time, and it
# also seems to indicate that Hong Kong was not using GMT+8 when it was
# captured by Japan.
#
# Image of related sections on newspaper:
# * 1941-09-30, Ta Kung Pao (Hong Kong), "Winter Time start tomorrow".
# https://i.imgur.com/6waY51Z.jpg (Chinese)
# * 1941-09-29, South China Morning Post, Information on sunrise/sunset
# time and other things for September 30 and October 1.
# https://i.imgur.com/kCiUR78.jpg
# * 1942-02-05. The Hong Kong News, Radio Program Guide.
# https://i.imgur.com/eVvDMzS.jpg
# * 1941-06-14. Hong Kong Daily Press, Daylight Saving from 3am Tomorrow.
# https://i.imgur.com/05KkvtC.png
# * 1941-09-30, Hong Kong Daily Press, Winter Time Warning.
# https://i.imgur.com/dge4kFJ.png
# Also, the Liberation day of Hong Kong after WWII which British rule
# over the territory resumed was August 30, 1945, which I think should
# be the termination date for the use of JST in the territory....
# From Paul Eggert (2018-11-17):
d591 2
a592 2
# https://www.hko.gov.hk/gts/time/Summertime.htm
# as of 2014-06-19:
d594 1
a594 1
# 1941 15 Jun to 30 Sep
d605 1
a605 1
# 1952 6 Apr to 2 Nov
d634 6
a639 9
# The page does not give times of day for transitions,
# or dates for the 1942 and 1945 transitions.
# The Japanese occupation of Hong Kong began 1941-12-25.
# The Japanese surrender of Hong Kong was signed 1945-09-16; see:
# Heaver S. The days after the Pacific war ended: unsettling times
# in Hong Kong. Post Magazine. 2016-06-13.
# https://www.scmp.com/magazines/post-magazine/article/1852990/days-after-pacific-war-ended-unsettling-times-hong-kong
# For lack of anything better, use start of those days as the
# transition times.
d642 2
d650 1
a650 1
Rule HK 1952 1953 - Nov Sun>=1 3:30 0 -
d652 1
d662 3
a664 5
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30 0:36:42
8:00 - HKT 1941 Jun 15 3:30
8:00 1:00 HKST 1941 Oct 1 4:00
8:30 - HKT 1941 Dec 25
9:00 - JST 1945 Sep 16
a1059 10
# British astronomer Henry Park Hollis disliked India Standard Time's offset:
# "A new time system has been proposed for India, Further India, and Burmah.
# The scheme suggested is that the times of the meridians 5½ and 6½ hours
# east of Greenwich should be adopted in these territories. No reason is
# given why hourly meridians five hours and six hours east should not be
# chosen; a plan which would bring the time of India into harmony with
# that of almost the whole of the civilised world."
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc.
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382
d1230 1
a1230 1
# From Paul Eggert (2018-11-30):
d1232 4
a1235 57
# I used the following code in GNU Emacs 26.1 to generate the "Rule Iran"
# lines from 2008 through 2087. Emacs 26.1 uses Ed Reingold's
# cal-persia implementation of Birashk's approximation, which in the
# 2008-2087 range disagrees with the the astronomical Persian calendar
# for Persian years 1404 (Gregorian 2025) and 1437 (Gregorian 2058),
# so the following code special-case those years. See Table 15.1, page 264, of:
# Edward M. Reingold and Nachum Dershowitz, Calendrical Calculations:
# The Ultimate Edition, Cambridge University Press (2018).
# https://www.cambridge.org/fr/academic/subjects/computer-science/computing-general-interest/calendrical-calculations-ultimate-edition-4th-edition
# Page 258, footnote 2, of this book says there is some dispute over what will
# happen in 2091 (and some other years after that), so this code
# stops in 2087, as 2088 and 2089 agree with the "max" rule below.
# (cl-loop
# initially (require 'cal-persia)
# with first-persian-year = 1387
# with last-persian-year = 1466
# ;; Exceptional years in the above range,
# ;; from Reingold & Dershowitz Table 15.1, page 264:
# with exceptional-persian-years = '(1404 1437)
# with range-start = nil
# for persian-year from first-persian-year to last-persian-year
# do
# (let*
# ((exceptional-year-offset
# (if (member persian-year exceptional-persian-years) 1 0))
# (beg-dst-absolute
# (+ (calendar-persian-to-absolute (list 1 1 persian-year))
# exceptional-year-offset))
# (end-dst-absolute
# (+ (calendar-persian-to-absolute (list 6 30 persian-year))
# exceptional-year-offset))
# (next-year-beg-dst-absolute
# (+ (calendar-persian-to-absolute (list 1 1 (1+ persian-year)))
# (if (member (1+ persian-year) exceptional-persian-years) 1 0)))
# (beg-dst (calendar-gregorian-from-absolute beg-dst-absolute))
# (end-dst (calendar-gregorian-from-absolute end-dst-absolute))
# (next-year-beg-dst (calendar-gregorian-from-absolute
# next-year-beg-dst-absolute))
# (year (calendar-extract-year beg-dst))
# (range-end (if range-start year "only")))
# (setq range-start (or range-start year))
# (when (or (/= (calendar-extract-day beg-dst)
# (calendar-extract-day next-year-beg-dst))
# (= persian-year last-persian-year))
# (insert
# (format
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t1:00\t-\n"
# range-start range-end
# (calendar-month-name (calendar-extract-month beg-dst) t)
# (calendar-extract-day beg-dst)))
# (insert
# (format
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t0\t-\n"
# range-start range-end
# (calendar-month-name (calendar-extract-month end-dst) t)
# (calendar-extract-day end-dst)))
# (setq range-start nil))))
d1270 51
a1320 103
Rule Iran 1978 1980 - Mar 20 24:00 1:00 -
Rule Iran 1978 only - Oct 20 24:00 0 -
Rule Iran 1979 only - Sep 18 24:00 0 -
Rule Iran 1980 only - Sep 22 24:00 0 -
Rule Iran 1991 only - May 2 24:00 1:00 -
Rule Iran 1992 1995 - Mar 21 24:00 1:00 -
Rule Iran 1991 1995 - Sep 21 24:00 0 -
Rule Iran 1996 only - Mar 20 24:00 1:00 -
Rule Iran 1996 only - Sep 20 24:00 0 -
Rule Iran 1997 1999 - Mar 21 24:00 1:00 -
Rule Iran 1997 1999 - Sep 21 24:00 0 -
Rule Iran 2000 only - Mar 20 24:00 1:00 -
Rule Iran 2000 only - Sep 20 24:00 0 -
Rule Iran 2001 2003 - Mar 21 24:00 1:00 -
Rule Iran 2001 2003 - Sep 21 24:00 0 -
Rule Iran 2004 only - Mar 20 24:00 1:00 -
Rule Iran 2004 only - Sep 20 24:00 0 -
Rule Iran 2005 only - Mar 21 24:00 1:00 -
Rule Iran 2005 only - Sep 21 24:00 0 -
Rule Iran 2008 only - Mar 20 24:00 1:00 -
Rule Iran 2008 only - Sep 20 24:00 0 -
Rule Iran 2009 2011 - Mar 21 24:00 1:00 -
Rule Iran 2009 2011 - Sep 21 24:00 0 -
Rule Iran 2012 only - Mar 20 24:00 1:00 -
Rule Iran 2012 only - Sep 20 24:00 0 -
Rule Iran 2013 2015 - Mar 21 24:00 1:00 -
Rule Iran 2013 2015 - Sep 21 24:00 0 -
Rule Iran 2016 only - Mar 20 24:00 1:00 -
Rule Iran 2016 only - Sep 20 24:00 0 -
Rule Iran 2017 2019 - Mar 21 24:00 1:00 -
Rule Iran 2017 2019 - Sep 21 24:00 0 -
Rule Iran 2020 only - Mar 20 24:00 1:00 -
Rule Iran 2020 only - Sep 20 24:00 0 -
Rule Iran 2021 2023 - Mar 21 24:00 1:00 -
Rule Iran 2021 2023 - Sep 21 24:00 0 -
Rule Iran 2024 only - Mar 20 24:00 1:00 -
Rule Iran 2024 only - Sep 20 24:00 0 -
Rule Iran 2025 2027 - Mar 21 24:00 1:00 -
Rule Iran 2025 2027 - Sep 21 24:00 0 -
Rule Iran 2028 2029 - Mar 20 24:00 1:00 -
Rule Iran 2028 2029 - Sep 20 24:00 0 -
Rule Iran 2030 2031 - Mar 21 24:00 1:00 -
Rule Iran 2030 2031 - Sep 21 24:00 0 -
Rule Iran 2032 2033 - Mar 20 24:00 1:00 -
Rule Iran 2032 2033 - Sep 20 24:00 0 -
Rule Iran 2034 2035 - Mar 21 24:00 1:00 -
Rule Iran 2034 2035 - Sep 21 24:00 0 -
Rule Iran 2036 2037 - Mar 20 24:00 1:00 -
Rule Iran 2036 2037 - Sep 20 24:00 0 -
Rule Iran 2038 2039 - Mar 21 24:00 1:00 -
Rule Iran 2038 2039 - Sep 21 24:00 0 -
Rule Iran 2040 2041 - Mar 20 24:00 1:00 -
Rule Iran 2040 2041 - Sep 20 24:00 0 -
Rule Iran 2042 2043 - Mar 21 24:00 1:00 -
Rule Iran 2042 2043 - Sep 21 24:00 0 -
Rule Iran 2044 2045 - Mar 20 24:00 1:00 -
Rule Iran 2044 2045 - Sep 20 24:00 0 -
Rule Iran 2046 2047 - Mar 21 24:00 1:00 -
Rule Iran 2046 2047 - Sep 21 24:00 0 -
Rule Iran 2048 2049 - Mar 20 24:00 1:00 -
Rule Iran 2048 2049 - Sep 20 24:00 0 -
Rule Iran 2050 2051 - Mar 21 24:00 1:00 -
Rule Iran 2050 2051 - Sep 21 24:00 0 -
Rule Iran 2052 2053 - Mar 20 24:00 1:00 -
Rule Iran 2052 2053 - Sep 20 24:00 0 -
Rule Iran 2054 2055 - Mar 21 24:00 1:00 -
Rule Iran 2054 2055 - Sep 21 24:00 0 -
Rule Iran 2056 2057 - Mar 20 24:00 1:00 -
Rule Iran 2056 2057 - Sep 20 24:00 0 -
Rule Iran 2058 2059 - Mar 21 24:00 1:00 -
Rule Iran 2058 2059 - Sep 21 24:00 0 -
Rule Iran 2060 2062 - Mar 20 24:00 1:00 -
Rule Iran 2060 2062 - Sep 20 24:00 0 -
Rule Iran 2063 only - Mar 21 24:00 1:00 -
Rule Iran 2063 only - Sep 21 24:00 0 -
Rule Iran 2064 2066 - Mar 20 24:00 1:00 -
Rule Iran 2064 2066 - Sep 20 24:00 0 -
Rule Iran 2067 only - Mar 21 24:00 1:00 -
Rule Iran 2067 only - Sep 21 24:00 0 -
Rule Iran 2068 2070 - Mar 20 24:00 1:00 -
Rule Iran 2068 2070 - Sep 20 24:00 0 -
Rule Iran 2071 only - Mar 21 24:00 1:00 -
Rule Iran 2071 only - Sep 21 24:00 0 -
Rule Iran 2072 2074 - Mar 20 24:00 1:00 -
Rule Iran 2072 2074 - Sep 20 24:00 0 -
Rule Iran 2075 only - Mar 21 24:00 1:00 -
Rule Iran 2075 only - Sep 21 24:00 0 -
Rule Iran 2076 2078 - Mar 20 24:00 1:00 -
Rule Iran 2076 2078 - Sep 20 24:00 0 -
Rule Iran 2079 only - Mar 21 24:00 1:00 -
Rule Iran 2079 only - Sep 21 24:00 0 -
Rule Iran 2080 2082 - Mar 20 24:00 1:00 -
Rule Iran 2080 2082 - Sep 20 24:00 0 -
Rule Iran 2083 only - Mar 21 24:00 1:00 -
Rule Iran 2083 only - Sep 21 24:00 0 -
Rule Iran 2084 2086 - Mar 20 24:00 1:00 -
Rule Iran 2084 2086 - Sep 20 24:00 0 -
Rule Iran 2087 only - Mar 21 24:00 1:00 -
Rule Iran 2087 only - Sep 21 24:00 0 -
#
# The following rules are approximations starting in the year 2088.
# These are the best post-2088 approximations available, given the
# restrictions of a single rule using ordinary Gregorian dates.
d1323 2
a1324 2
Rule Iran 2088 max - Mar 20 24:00 1:00 -
Rule Iran 2088 max - Sep 20 24:00 0 -
d1694 1
a1694 3
# Since 1938, all Japanese possessions have been like Asia/Tokyo,
# except that Truk (Chuuk), Ponape (Pohnpei), and Jaluit (Kosrae) did not
# switch from +10 to +09 until 1941-04-01; see the 'australasia' file.
d1984 2
a1985 4
# From Alexander Konzurovski (2018-12-20):
# Qyzyolrda Region (Asia/Qyzylorda) is changing its time zone from
# UTC+6 to UTC+5 effective December 21st, 2018. The legal document is
# located here: http://adilet.zan.kz/rus/docs/P1800000817 (russian language).
d1999 2
d2011 14
a2024 2
6:00 - +06 2018 Dec 21 0:00
5:00 - +05
a2025 13
# Qostanay (aka Kostanay, Kustanay) (KZ-KUS)
# The 1991/2 rules are unclear partly because of the 1997 Turgai
# reorganization.
Zone Asia/Qostanay 4:14:28 - LMT 1924 May 2
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
6:00 - +06
a2118 22
# From Phake Nick (2018-10-27):
# 1. According to official announcement from Korean government, the DST end
# date in South Korea should be
# 1955-09-08 without specifying time
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027977557
# 1956-09-29 without specifying time
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027978341
# 1957-09-21 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027979690#3
# 1958-09-20 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027981189
# 1959-09-19 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027982974#2
# 1960-09-17 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0028044104
# ...
# 2.... https://namu.wiki/w/대한민국%20표준시 ... [says]
# when Korea was using GMT+8:30 as standard time, the international
# aviation/marine/meteorological industry in the country refused to
# follow and continued to use GMT+9:00 for interoperability.
d2120 14
a2133 14
Rule ROK 1948 only - Jun 1 0:00 1:00 D
Rule ROK 1948 only - Sep 12 24:00 0 S
Rule ROK 1949 only - Apr 3 0:00 1:00 D
Rule ROK 1949 1951 - Sep Sat>=7 24:00 0 S
Rule ROK 1950 only - Apr 1 0:00 1:00 D
Rule ROK 1951 only - May 6 0:00 1:00 D
Rule ROK 1955 only - May 5 0:00 1:00 D
Rule ROK 1955 only - Sep 8 24:00 0 S
Rule ROK 1956 only - May 20 0:00 1:00 D
Rule ROK 1956 only - Sep 29 24:00 0 S
Rule ROK 1957 1960 - May Sun>=1 0:00 1:00 D
Rule ROK 1957 1960 - Sep Sat>=17 24:00 0 S
Rule ROK 1987 1988 - May Sun>=8 2:00 1:00 D
Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S
a2922 5
# From Paul Eggert (2018-11-18):
# The Spanish initially used American (west-of-Greenwich) time.
# It is unknown what time Manila kept when the British occupied it from
# 1762-10-06 through 1764-04; for now assume it kept American time.
d3008 2
a3009 2
# Also see: Antar EN. Arabian flying is confusing.
# Port Angeles (WA) Evening News. 1965-03-10. page 3.
@
1.1.1.1.4.5
log
@Pull up following revision(s) (requested by christos in ticket #1143):
external/public-domain/tz/dist/CONTRIBUTING: up to 1.1.1.2
external/public-domain/tz/dist/LICENSE: up to 1.1.1.1
external/public-domain/tz/dist/Makefile: up to 1.1.1.10
external/public-domain/tz/dist/NEWS: up to 1.1.1.10
external/public-domain/tz/dist/README: up to 1.1.1.3
external/public-domain/tz/dist/Theory: up to 1.1.1.5
external/public-domain/tz/dist/asia: up to 1.1.1.9
external/public-domain/tz/dist/australasia: up to 1.1.1.6
external/public-domain/tz/dist/backward: up to 1.1.1.5
external/public-domain/tz/dist/backzone: up to 1.1.1.8
external/public-domain/tz/dist/checklinks.awk: up to 1.1.1.2
external/public-domain/tz/dist/checktab.awk: up to 1.1.1.8
external/public-domain/tz/dist/europe: up to 1.1.1.10
external/public-domain/tz/dist/iso3166.tab: up to 1.1.1.3
external/public-domain/tz/dist/leap-seconds.list: up to 1.1.1.5
external/public-domain/tz/dist/leapseconds.awk: up to 1.1.1.5
external/public-domain/tz/dist/leapseconds: up to 1.1.1.6
external/public-domain/tz/dist/northamerica: up to 1.1.1.10
external/public-domain/tz/dist/zone.tab: up to 1.1.1.6
external/public-domain/tz/dist/zone1970.tab: up to 1.1.1.8
external/public-domain/tz/tzdata2netbsd: up to 1.8
Update tzdata to 2016b.
@
text
@d134 1
a134 2
# From Paul Eggert (2015-09-17): It was Resolution No. 21 (1997-03-17).
# http://code.az/files/daylight_res.pdf
a875 9
# From Ian P. Beacock, in "A brief history of (modern) time", The Atlantic
# http://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/
# (2015-12-22):
# In January 1906, several thousand cotton-mill workers rioted on the
# outskirts of Bombay.... They were protesting the proposed abolition of
# local time in favor of Indian Standard Time.... Journalists called this
# dispute the "Battle of the Clocks." It lasted nearly half a century.
d1086 2
a1087 9
#
# The following rules are approximations starting in the year 2038.
# These are the best post-2037 approximations available, given the
# restrictions of a single rule using a Gregorian-based data format.
# At some point this table will need to be extended, though quite
# possibly Iran will change the rules first.
Rule Iran 2036 max - Mar 21 0:00 1:00 D
Rule Iran 2036 max - Sep 21 0:00 0 S
d1720 2
a1721 4
# From Paul Eggert (2015-08-15):
# Bells rang out midnight (00:00) Friday as part of the celebrations. See:
# Talmadge E. North Korea celebrates new time zone, 'Pyongyang Time'
# http://news.yahoo.com/north-korea-celebrates-time-zone-pyongyang-time-164038128.html
d1723 2
a1724 1
# Use KST, as that's what we already use for 1954-1961 in ROK.
d1738 1
a1738 1
9:00 - KST 2015 Aug 15 00:00
d2112 2
a2113 2
Rule Pakistan 2002 only - Apr Sun>=2 0:00 1:00 S
Rule Pakistan 2002 only - Oct Sun>=2 0:00 0 -
a2380 10
# From Hannah Kreitem (2016-03-09):
# http://www.palestinecabinet.gov.ps/WebSite/ar/ViewDetails?ID=31728
# [Google translation]: "The Council also decided to start daylight
# saving in Palestine as of one o'clock on Saturday morning,
# 2016-03-26, to provide the clock 60 minutes ahead."
#
# From Paul Eggert (2016-03-12):
# Predict spring transitions on March's last Saturday at 01:00 from now on.
# Leave fall predictions alone for now.
d2409 1
a2409 2
Rule Palestine 2015 only - Mar lastFri 24:00 1:00 S
Rule Palestine 2016 max - Mar lastSat 1:00 1:00 S
@
1.1.1.1.4.5.2.1
log
@Sync with netbsd-5
@
text
@d82 7
a88 3
Rule RussiaAsia 1984 1995 - Sep lastSun 2:00s 0 -
Rule RussiaAsia 1985 2011 - Mar lastSun 2:00s 1:00 S
Rule RussiaAsia 1996 2011 - Oct lastSun 2:00s 0 -
d123 7
a129 5
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1995 Sep 24 2:00s
4:00 - +04 1997
4:00 RussiaAsia +04/+05
a131 1
a135 8
# From Steffen Thorsen (2016-03-17):
# ... the Azerbaijani Cabinet of Ministers has cancelled switching to
# daylight saving time....
# http://www.azernews.az/azerbaijan/94137.html
# http://vestnikkavkaza.net/news/Azerbaijani-Cabinet-of-Ministers-cancels-daylight-saving-time.html
# http://en.apa.az/xeber_azerbaijan_abolishes_daylight_savings_ti_240862.html
d137 2
a138 2
Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 S
Rule Azer 1997 2015 - Oct lastSun 5:00 0 -
d141 7
a147 6
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1992 Sep lastSun 2:00s
4:00 - +04 1996
4:00 EUAsia +04/+05 1997
4:00 Azer +04/+05
d266 1
a266 1
Zone Asia/Yangon 6:24:40 - LMT 1880 # or Rangoon
d381 1
a381 1
# Xujiahui Observatory was under French control and stuck with UT +08.
d390 1
a390 1
# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) UT +08:30
d394 1
a394 1
# Zhongyuan Time ("Central plain Time") UT +08
d400 1
a400 1
# Guo says Shanghai switched to UT +08 "from the end of the 19th century".
d402 1
a402 1
# Long-shu Time (probably due to Long and Shu being two names of the area) UT +07
d409 1
a409 1
# Xin-zang Time ("Xinjiang-Tibet Time") UT +06
d422 1
a422 1
# Kunlun Time UT +05:30
d438 1
a438 1
# hours behind Beijing time, or UT +06. The government of the Xinjiang
d494 2
a495 2
# In the early days of the PRC, Tibet was given its own time zone (UT +06)
# but this was withdrawn in 1959 and never reinstated; see Tubten Khétsun,
d509 1
a509 1
# UT +06 at the start of 1928, the year of accession of the warlord Jin Shuren,
d511 2
a512 2
# guess) as the transition from LMT. Ignore the usage of +08 before
# 1986-02-01 under the theory that the transition date to +08 is unknown and
d514 1
a514 1
# +08 mandate back then.
d719 1
a719 1
# As per Yu-Cheng Chuang, say that Taiwan was at UT +09 from 1937-10-01
d772 1
a772 1
d774 1
a774 11
# IATA SSIM (1998-09) has Cyprus using EU rules for the first time.
# From Paul Eggert (2016-09-09):
# Yesterday's Cyprus Mail reports that Northern Cyprus followed Turkey's
# lead and switched from +02/+03 to +03 year-round.
# http://cyprus-mail.com/2016/09/08/two-time-zones-cyprus-turkey-will-not-turn-clocks-back-next-month/
#
# From Even Scharning (2016-10-31):
# Looks like the time zone split in Cyprus went through last night.
# http://cyprus-mail.com/2016/10/30/cyprus-new-division-two-time-zones-now-reality/
d789 1
a789 4
Zone Asia/Famagusta 2:15:48 - LMT 1921 Nov 14
2:00 Cyprus EE%sT 1998 Sep
2:00 EUAsia EE%sT 2016 Sep 8
3:00 - +03
d833 10
a842 9
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1992
3:00 E-EurAsia +03/+04 1994 Sep lastSun
4:00 E-EurAsia +04/+05 1996 Oct lastSun
4:00 1:00 +05 1997 Mar lastSun
4:00 E-EurAsia +04/+05 2004 Jun 27
3:00 RussiaAsia +03/+04 2005 Mar lastSun 2:00
4:00 - +04
d919 1
a919 1
# from UT +09 to +07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura
d930 1
a930 1
# The time zone abbreviations and UT offsets are:
d932 3
a934 3
# WIB - +07 - Waktu Indonesia Barat (Indonesia western time)
# WITA - +08 - Waktu Indonesia Tengah (Indonesia central time)
# WIT - +09 - Waktu Indonesia Timur (Indonesia eastern time)
d1561 17
d1589 2
a1590 2
# same), encompassing four provinces in the west: Aqtöbe, Atyraū,
# Mangghystaū, and West Kazakhstan. The other zone encompasses
d1594 1
a1594 156
# From Stepan Golosunov (2016-03-27):
# Review of the linked documents from http://adilet.zan.kz/
# produced the following data for post-1991 Kazakhstan:
#
# 0. Act of the Cabinet of Ministers of the USSR
# from 1991-02-04 No. 20
# http://pravo.gov.ru/proxy/ips/?docbody=&nd=102010545
# removed the extra hour ("decree time") on the territory of the USSR
# starting with the last Sunday of March 1991.
# It also allowed (but not mandated) Kazakh SSR, Kirghiz SSR, Tajik SSR,
# Turkmen SSR and Uzbek SSR to not have "summer" time.
#
# The 1992-01-13 act also refers to the act of the Cabinet of Ministers
# of the Kazakh SSR from 1991-03-20 No. 170 "About the act of the Cabinet
# of Ministers of the USSR from 1991-02-04 No. 20" but I didn't found its
# text.
#
# According to Izvestia newspaper No. 68 (23334) from 1991-03-20
# (page 6; available at http://libinfo.org/newsr/newsr2574.djvu via
# http://libinfo.org/index.php?id=58564) on 1991-03-31 at 2:00 during
# transition to "summer" time:
# Republic of Georgia, Latvian SSR, Lithuanian SSR, SSR Moldova,
# Estonian SSR; Komi ASSR; Kaliningrad oblast; Nenets autonomous okrug
# were to move clocks 1 hour forward.
# Kazakh SSR (excluding Uralsk oblast); Republic of Kyrgyzstan, Tajik
# SSR; Andijan, Jizzakh, Namangan, Sirdarya, Tashkent, Fergana oblasts
# of the Uzbek SSR were to move clocks 1 hour backwards.
# Other territories were to not move clocks.
# When the "summer" time would end on 1991-09-29, clocks were to be
# moved 1 hour backwards on the territory of the USSR excluding
# Kazakhstan, Kirghizia, Uzbekistan, Turkmenia, Tajikistan.
#
# Apparently there were last minute changes. Apparently Kazakh act No. 170
# was one of such changes.
#
# https://ru.wikipedia.org/wiki/Декретное время
# claims that Sovetskaya Rossiya newspaper on 1991-03-29 published that
# Nenets autonomous okrug, Komi and Kazakhstan (excluding Uralsk oblast)
# were to not move clocks and Uralsk oblast was to move clocks
# forward; on 1991-09-29 Kazakhstan was to move clocks backwards.
# (Probably there were changes even after that publication. There is an
# article claiming that Kaliningrad oblast decided on 1991-03-29 to not
# move clocks.)
#
# This implies that on 1991-03-31 Asia/Oral remained on +04/+05 while
# the rest of Kazakhstan switched from +06/+07 to +05/06 or from +05/06
# to +04/+05. It's unclear how Qyzylorda oblast moved into the fifth
# time belt. (By switching from +04/+05 to +05/+06 on 1991-09-29?) ...
#
# 1. Act of the Cabinet of Ministers of the Republic of Kazakhstan
# from 1992-01-13 No. 28
# http://adilet.zan.kz/rus/docs/P920000028_
# (text includes modification from the 1996 act)
# introduced new rules for calculation of time, mirroring Russian
# 1992-01-08 act. It specified that time would be calculated
# according to time belts plus extra hour ("decree time"), moved clocks
# on the whole territory of Kazakhstan 1 hour forward on 1992-01-19 at
# 2:00, specified DST rules. It acknowledged that Kazakhstan was
# located in the fourth and the fifth time belts and specified the
# border between them to be located east of Qostanay and Aktyubinsk
# oblasts (notably including Turgai and Qyzylorda oblasts into the fifth
# time belt).
#
# This means switch on 1992-01-19 at 2:00 from +04/+05 to +05/+06 for
# Asia/Aqtau, Asia/Aqtobe, Asia/Oral, Atyraū and Qostanay oblasts; from
# +05/+06 to +06/+07 for Asia/Almaty and Asia/Qyzylorda (and Arkalyk)....
#
# 2. Act of the Cabinet of Ministers of the Republic of Kazakhstan
# from 1992-03-27 No. 284
# http://adilet.zan.kz/rus/docs/P920000284_
# cancels extra hour ("decree time") for Uralsk and Qyzylorda oblasts
# since the last Sunday of March 1992, while keeping them in the fourth
# and the fifth time belts respectively.
#
# 3. Order of the Prime Minister of the Republic of Kazakhstan
# from 1994-09-23 No. 384
# http://adilet.zan.kz/rus/docs/R940000384_
# cancels the extra hour ("decree time") on the territory of Mangghystaū
# oblast since the last Sunday of September 1994 (saying that time on
# the territory would correspond to the third time belt as a
# result)....
#
# 4. Act of the Government of the Republic of Kazakhstan
# from 1996-05-08 No. 575
# http://adilet.zan.kz/rus/docs/P960000575_
# amends the 1992-01-13 act to end summer time in October instead
# of September, mirroring identical Russian change from 1996-04-23 act.
#
# 5. Act of the Government of the Republic of Kazakhstan
# from 1999-03-26 No. 305
# http://adilet.zan.kz/rus/docs/P990000305_
# cancels the extra hour ("decree time") for Atyraū oblast since the
# last Sunday of March 1999 while retaining the oblast in the fourth
# time belt.
#
# This means change from +05/+06 to +04/+05....
#
# 6. Act of the Government of the Republic of Kazakhstan
# from 2000-11-23 No. 1749
# http://adilet.zan.kz/rus/archive/docs/P000001749_/23.11.2000
# replaces the previous five documents.
#
# The only changes I noticed are in definition of the border between the
# fourth and the fifth time belts. They account for changes in spelling
# and administrative division (splitting of Turgai oblast in 1997
# probably changed time in territories incorporated into Qostanay oblast
# (including Arkalyk) from +06/+07 to +05/+06) and move Qyzylorda oblast
# from being in the fifth time belt and not using decree time into the
# fourth time belt (no change in practice).
#
# 7. Act of the Government of the Republic of Kazakhstan
# from 2003-12-29 No. 1342
# http://adilet.zan.kz/rus/docs/P030001342_
# modified the 2000-11-23 act. No relevant changes, apparently.
#
# 8. Act of the Government of the Republic of Kazakhstan
# from 2004-07-20 No. 775
# http://adilet.zan.kz/rus/archive/docs/P040000775_/20.07.2004
# modified the 2000-11-23 act to move Qostanay and Qyzylorda oblasts into
# the fifth time belt and add Aktobe oblast to the list of regions not
# using extra hour ("decree time"), leaving Kazakhstan with only 2 time
# zones (+04/+05 and +06/+07). The changes were to be implemented
# during DST transitions in 2004 and 2005 but the acts got radically
# amended before implementation happened.
#
# 9. Act of the Government of the Republic of Kazakhstan
# from 2004-09-15 No. 1059
# http://adilet.zan.kz/rus/docs/P040001059_
# modified the 2000-11-23 act to remove exceptions from the "decree time"
# (leaving Kazakhstan in +05/+06 and +06/+07 zones), amended the
# 2004-07-20 act to implement changes for Atyraū, West Kazakhstan,
# Qostanay, Qyzylorda and Mangghystaū oblasts by not moving clocks
# during the 2004 transition to "winter" time.
#
# This means transition from +04/+05 to +05/+06 for Atyraū oblast (no
# zone currently), Asia/Oral, Asia/Aqtau and transition from +05/+06 to
# +06/+07 for Qostanay oblast (Qostanay and Arkalyk, no zones currently)
# and Asia/Qyzylorda on 2004-10-31 at 3:00....
#
# 10. Act of the Government of the Republic of Kazakhstan
# from 2005-03-15 No. 231
# http://adilet.zan.kz/rus/docs/P050000231_
# removes DST provisions from the 2000-11-23 act, removes most of the
# (already implemented) provisions from the 2004-07-20 and 2004-09-15
# acts, comes into effect 10 days after official publication.
# The only practical effect seems to be the abolition of the summer
# time.
#
# Unamended version of the act of the Government of the Russian Federation
# No. 23 from 1992-01-08 [See 'europe' file for details].
# Kazakh 1992-01-13 act appears to provide the same rules and 1992-03-27
# act was to be enacted on the last Sunday of March 1992.
# From Paul Eggert (2016-11-07):
# The tables below reflect Golosunov's remarks, with exceptions as noted.
a1597 2
# This includes KZ-AKM, KZ-ALA, KZ-ALM, KZ-AST, KZ-BAY, KZ-VOS, KZ-ZHA,
# KZ-KAR, KZ-SEV, KZ-PAV, and KZ-YUZ.
d1599 6
a1604 8
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s
6:00 RussiaAsia +06/+07 2004 Oct 31 2:00s
6:00 - +06
# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-KZY)
# This currently includes Qostanay (aka Kostanay, Kustanay) (KZ-KUS);
# see comments below.
d1606 10
a1615 25
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1991 Sep 29 2:00s
5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s
6:00 RussiaAsia +06/+07 1992 Mar 29 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
6:00 - +06
# The following zone is like Asia/Qyzylorda except for being one
# hour earlier from 1991-09-29 to 1992-03-29. The 1991/2 rules for
# Qostenay are unclear partly because of the 1997 Turgai
# reorganization, so this zone is commented out for now.
#Zone Asia/Qostanay 4:14:20 - LMT 1924 May 2
# 4:00 - +04 1930 Jun 21
# 5:00 - +05 1981 Apr 1
# 5:00 1:00 +06 1981 Oct 1
# 6:00 - +06 1982 Apr 1
# 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
# 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
# 5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
# 6:00 - +06
#
# Aqtöbe (aka Aktobe, formerly Aktyubinsk) (KZ-AKT)
d1617 9
a1625 9
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
5:00 - +05
# Mangghystaū (KZ-MAN)
d1629 10
a1638 22
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 1994 Sep 25 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
# Atyraū (KZ-ATY) is like Mangghystaū except it switched from
# +04/+05 to +05/+06 in spring 1999, not fall 1994.
Zone Asia/Atyrau 3:27:44 - LMT 1924 May 2
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 1999 Mar 28 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
# West Kazakhstan (KZ-ZAP)
# From Paul Eggert (2016-03-18):
# The 1989 transition is from USSR act No. 227 (1989-03-14).
d1640 9
a1648 9
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1989 Mar 26 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 1992 Mar 29 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
d1669 5
a1673 5
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 RussiaAsia +05/+06 1991 Aug 31 2:00
5:00 Kyrgyz +05/+06 2005 Aug 12
6:00 - +06
d1712 1
a1712 1
# From Paul Eggert (2016-08-23):
d1715 1
a1715 1
# 1908: Official Journal Article No. 3994 (decree No. 5)
d1720 1
d1722 3
a1724 2
# (Another source "1987: Law No. 3919 (1986-12-31)" was in the 2014-10-30
# edition of the Korean Wikipedia entry.)
d1730 1
a1730 2
# For Pyongyang, guess no changes from World War II until 2015, as we
# have no information otherwise.
d1890 1
a1890 1
# travelmongolia.org says there are two time zones (UT +07, +08) with no DST.
d2393 5
d2407 1
a2407 15
# From Sharef Mustafa (2016-10-19):
# [T]he Palestinian cabinet decision (Mar 8th 2016) published on
# http://www.palestinecabinet.gov.ps/WebSite/Upload/Decree/GOV_17/16032016134830.pdf
# states that summer time will end on Oct 29th at 01:00.
#
# From Tim Parenti (2016-10-19):
# Predict fall transitions on October's last Saturday at 01:00 from now on.
# This is consistent with the 2016 transition as well as our spring
# predictions.
#
# From Paul Eggert (2016-10-19):
# It's also consistent with predictions in the following URLs today:
# http://www.timeanddate.com/time/change/gaza-strip/gaza
# http://www.timeanddate.com/time/change/west-bank/hebron
d2436 1
a2436 1
Rule Palestine 2014 2015 - Oct Fri>=21 0:00 0 -
a2438 1
Rule Palestine 2016 max - Oct lastSat 1:00 0 -
d2442 1
a2442 1
2:00 Zion EET/EEST 1948 May 15
d2455 1
a2455 1
2:00 Zion EET/EEST 1948 May 15
d2526 1
a2526 1
# time zones; the other zone, at UT +04, was in the far eastern part of
d2588 28
a2615 14
# From Sadika Sumanapala (2016-10-19):
# According to http://www.sltime.org (maintained by Measurement Units,
# Standards & Services Department, Sri Lanka) abbreviation for Sri Lanka
# standard time is SLST.
#
# From Paul Eggert (2016-10-18):
# "SLST" seems to be reasonably recent and rarely-used outside time
# zone nerd sources. I searched Google News and found three uses of
# it in the International Business Times of India in February and
# March of this year when discussing cricket match times, but nothing
# since then (though there has been a lot of cricket) and nothing in
# other English-language news sources. Our old abbreviation "LKT" is
# even worse. For now, let's use a numeric abbreviation; we can
# switch to "SLST" if it catches on.
d2620 7
a2626 7
5:30 - +0530 1942 Jan 5
5:30 0:30 +0530/+06 1942 Sep
5:30 1:00 +0530/+0630 1945 Oct 16 2:00
5:30 - +0530 1996 May 25 0:00
6:30 - +0630 1996 Oct 26 0:30
6:00 - +06 2006 Apr 15 0:30
5:30 - +0530
d2795 4
a2798 4
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 1:00 +05/+06 1991 Sep 9 2:00s
5:00 - +05
d2812 5
a2816 4
4:00 - +04 1930 Jun 21
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00
5:00 - +05
d2828 7
a2834 6
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1992
5:00 - +05
d2837 5
a2841 4
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00
5:00 RussiaAsia +05/+06 1992
5:00 - +05
@
1.1.1.1.4.5.2.2
log
@Sync with netbsd-7-1-RELEASE
@
text
@d9 1
a9 1
# From Paul Eggert (2017-01-13):
d16 2
a17 2
# Many years ago Gwillim Law wrote that a good source
# for time zone data was the International Air Transport
d38 3
a40 1
# The following alphabetic abbreviations appear in these tables:
d45 3
d49 1
d53 4
a56 1
# 8:30 KST KDT Korea when at +0830
a60 4
# Otherwise, these tables typically use numeric abbreviations like +03
# and +0330 for integer hour and minute UTC offsets. Although earlier
# editions invented alphabetic time zone abbreviations for every
# offset, this did not reflect common practice.
d68 1
a68 1
# Worldwide Edition).
d89 2
a90 2
4:00 - +04 1945
4:30 - +0430
d233 6
a238 5
6:30 - +0630 1942 May 15
5:30 - +0530 1942 Sep
6:30 - +0630 1951 Sep 30
6:00 - +06 2009
6:00 Dhaka +06/+07
d243 2
a244 2
5:30 - +0530 1987 Oct
6:00 - +06
d254 2
a255 2
5:00 - +05 1996
6:00 - +06
d260 2
a261 2
7:30 - +0730 1933
8:00 - +08
d270 3
a272 3
6:30 - +0630 1942 May
9:00 - +09 1945 May 3
6:30 - +0630
d335 1
a335 1
# From Paul Eggert (2017-01-05):
d393 1
a393 1
# Now part of Asia/Shanghai; its pre-1970 times are not recorded here.
d397 1
a397 1
# Now part of Asia/Shanghai.
d399 2
d404 2
a405 2
# Long-shu Time (probably as Long and Shu were two names of the area) UT +07
# Now part of Asia/Shanghai; its pre-1970 times are not recorded here.
d407 1
a407 1
# most of Gansu; west Inner Mongolia; east Qinghai; and the Guangdong
d412 3
a414 3
# This region is now part of either Asia/Urumqi or Asia/Shanghai with
# current boundaries uncertain; times before 1970 for areas that
# disagree with Ürümqi or Shanghai are not recorded here.
d425 1
a425 1
# This region is now in the same status as Xin-zang Time (see above).
d526 1
a526 1
6:00 - +06
d745 1
a745 1
8:00 - CST 1937 Oct 1
d751 14
a764 14
Rule Macau 1961 1962 - Mar Sun>=16 3:30 1:00 D
Rule Macau 1961 1964 - Nov Sun>=1 3:30 0 S
Rule Macau 1963 only - Mar Sun>=16 0:00 1:00 D
Rule Macau 1964 only - Mar Sun>=16 3:30 1:00 D
Rule Macau 1965 only - Mar Sun>=16 0:00 1:00 D
Rule Macau 1965 only - Oct 31 0:00 0 S
Rule Macau 1966 1971 - Apr Sun>=16 3:30 1:00 D
Rule Macau 1966 1971 - Oct Sun>=16 3:30 0 S
Rule Macau 1972 1974 - Apr Sun>=15 0:00 1:00 D
Rule Macau 1972 1973 - Oct Sun>=15 0:00 0 S
Rule Macau 1974 1977 - Oct Sun>=15 3:30 0 S
Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 D
Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 D
Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 S
d767 2
a768 1
8:00 Macau C%sT
d884 5
a888 4
8:00 - +08 1942 Feb 21 23:00
9:00 - +09 1976 May 3
8:00 - +08 2000 Sep 17 0:00
9:00 - +09
d903 1
a903 1
6:30 - +0630 1942 May 15
d905 1
a905 1
5:30 1:00 +0630 1945 Oct 15
d956 6
a961 6
7:20 - +0720 1932 Nov
7:30 - +0730 1942 Mar 23
9:00 - +09 1945 Sep 23
7:30 - +0730 1948 May
8:00 - +08 1950 May
7:30 - +0730 1964
d966 5
a970 5
7:30 - +0730 1942 Jan 29
9:00 - +09 1945 Sep 23
7:30 - +0730 1948 May
8:00 - +08 1950 May
7:30 - +0730 1964
d976 2
a977 2
8:00 - +08 1942 Feb 9
9:00 - +09 1945 Sep 23
d981 2
a982 2
9:00 - +09 1944 Sep 1
9:30 - +0930 1964
d1014 2
d1122 3
a1124 3
3:30 - +0330 1977 Nov
4:00 Iran +04/+05 1979
3:30 Iran +0330/+0430
d1167 2
a1168 2
3:00 - +03 1982 May
3:00 Iraq +03/+04
d1467 2
d1744 1
a1744 17
# From Stepan Golosunov (2016-11-08):
# Turgai reorganization should affect only southern part of Qostanay
# oblast. Which should probably be separated into Asia/Arkalyk zone.
# (There were also 1970, 1988 and 1990 Turgai oblast reorganizations
# according to wikipedia.)
#
# [For Qostanay] http://www.ng.kz/gazeta/195/hranit/
# suggests that clocks were to be moved 40 minutes backwards on
# 1920-01-01 to the fourth time belt. But I do not understand
# how that could happen....
#
# [For Atyrau and Oral] 1919 decree
# (http://www.worldtimezone.com/dst_news/dst_news_russia-1919-02-08.html
# and in Byalokoz) lists Ural river (plus 10 versts on its left bank) in
# the third time belt (before 1930 this means +03).
# From Paul Eggert (2016-12-06):
d1774 1
a1774 1
# Qostanay are unclear partly because of the 1997 Turgai
d1811 1
a1811 1
3:00 - +03 1930 Jun 21
d1823 1
a1823 1
3:00 - +03 1930 Jun 21
d1929 1
d1936 1
d1991 7
a1997 7
7:00 - +07 1933 Jan 1
7:00 0:20 +0720 1936 Jan 1
7:20 - +0720 1941 Sep 1
7:30 - +0730 1942 Feb 16
9:00 - +09 1945 Sep 12
7:30 - +0730 1982 Jan 1
8:00 - +08
d2004 5
a2008 4
7:30 - +0730 1933
8:00 NBorneo +08/+0820 1942 Feb 16
9:00 - +09 1945 Sep 12
8:00 - +08
d2014 1
a2014 1
5:00 - +05
a2140 4
# From Ganbold Tsagaankhuu (2017-02-09):
# Mongolian Government meeting has concluded today to cancel daylight
# saving time adoption in Mongolia. Source: http://zasag.mn/news/view/16192
d2147 2
a2148 2
Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 S
Rule Mongol 2015 2016 - Sep lastSat 0:00 0 -
d2153 2
a2154 2
6:00 - +06 1978
7:00 Mongol +07/+08
d2157 2
a2158 2
7:00 - +07 1978
8:00 Mongol +08/+09
d2162 4
a2165 4
7:00 - +07 1978
8:00 - +08 1983 Apr
9:00 Mongol +09/+10 2008 Mar 31
8:00 Mongol +08/+09
d2170 2
a2171 2
5:30 - +0530 1986
5:45 - +0545
d2320 4
a2323 4
5:30 - +0530 1942 Sep
5:30 1:00 +0630 1945 Oct 15
5:30 - +0530 1951 Sep 30
5:00 - +05 1971 Mar 26
d2688 3
a2690 3
8:00 Phil +08/+09 1942 May
9:00 - +09 1944 Nov
8:00 Phil +08/+09
d2695 2
a2696 2
4:00 - +04 1972 Jun
3:00 - +03
d2723 1
a2723 1
3:00 - +03
d2733 8
a2740 7
7:00 - +07 1933 Jan 1
7:00 0:20 +0720 1936 Jan 1
7:20 - +0720 1941 Sep 1
7:30 - +0730 1942 Feb 16
9:00 - +09 1945 Sep 12
7:30 - +0730 1982 Jan 1
8:00 - +08
d2799 2
a2800 2
5:30 0:30 +06 1942 Sep
5:30 1:00 +0630 1945 Oct 16 2:00
d2982 1
a2982 1
7:00 - +07
d2998 1
a2998 1
4:00 - +04
d3071 9
a3079 9
7:06:30 - PLMT 1911 May 1 # Phù Liễn MT
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 2
7:00 - +07 1947 Apr 1
8:00 - +08 1955 Jul 1
7:00 - +07 1959 Dec 31 23:00
8:00 - +08 1975 Jun 13
7:00 - +07
@
1.1.1.1.4.6
log
@Pull up following revision(s) (requested by kre in ticket #1324):
distrib/sets/lists/base/mi: 1.1125, 1.1128, 1.1132, 1.1137, 1.1139, 1.1140
external/public-domain/tz/dist/CONTRIBUTING: up to 1.1.1.3
external/public-domain/tz/dist/LICENSE: up to 1.1.1.2
external/public-domain/tz/dist/Makefile: up to 1.1.1.16
external/public-domain/tz/dist/NEWS: up to 1.1.1.16
external/public-domain/tz/dist/README: up to 1.1.1.5
external/public-domain/tz/dist/TZDATA_VERSION: up to 1.6
external/public-domain/tz/dist/Theory: up to 1.1.1.9
external/public-domain/tz/dist/africa: up to 1.1.1.9
external/public-domain/tz/dist/antarctica: up to 1.1.1.7
external/public-domain/tz/dist/asia: up to 1.1.1.15
external/public-domain/tz/dist/australasia: up to 1.1.1.10
external/public-domain/tz/dist/backward: up to 1.1.1.6
external/public-domain/tz/dist/backzone: up to 1.1.1.10
external/public-domain/tz/dist/etcetera: up to 1.1.1.2
external/public-domain/tz/dist/europe: up to 1.1.1.16
external/public-domain/tz/dist/factory: up to 1.1.1.2
external/public-domain/tz/dist/iso3166.tab: up to 1.1.1.4
external/public-domain/tz/dist/leap-seconds.list: up to 1.1.1.6
external/public-domain/tz/dist/leapseconds: up to 1.1.1.7
external/public-domain/tz/dist/northamerica: up to 1.1.1.14
external/public-domain/tz/dist/southamerica: up to 1.1.1.10
external/public-domain/tz/dist/version: up to 1.1.1.3
external/public-domain/tz/dist/zone.tab: up to 1.1.1.10
external/public-domain/tz/dist/zone1970.tab: up to 1.1.1.12
external/public-domain/tz/share/zoneinfo/Makefile: up to 1.3
external/public-domain/tz/tzdata2netbsd: up to 1.11
Update tzdata to 2016j.
@
text
@d82 7
a88 3
Rule RussiaAsia 1984 1995 - Sep lastSun 2:00s 0 -
Rule RussiaAsia 1985 2011 - Mar lastSun 2:00s 1:00 S
Rule RussiaAsia 1996 2011 - Oct lastSun 2:00s 0 -
d123 7
a129 5
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1995 Sep 24 2:00s
4:00 - +04 1997
4:00 RussiaAsia +04/+05
a131 1
a135 8
# From Steffen Thorsen (2016-03-17):
# ... the Azerbaijani Cabinet of Ministers has cancelled switching to
# daylight saving time....
# http://www.azernews.az/azerbaijan/94137.html
# http://vestnikkavkaza.net/news/Azerbaijani-Cabinet-of-Ministers-cancels-daylight-saving-time.html
# http://en.apa.az/xeber_azerbaijan_abolishes_daylight_savings_ti_240862.html
d137 2
a138 2
Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 S
Rule Azer 1997 2015 - Oct lastSun 5:00 0 -
d141 7
a147 6
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1992 Sep lastSun 2:00s
4:00 - +04 1996
4:00 EUAsia +04/+05 1997
4:00 Azer +04/+05
d266 1
a266 1
Zone Asia/Yangon 6:24:40 - LMT 1880 # or Rangoon
d381 1
a381 1
# Xujiahui Observatory was under French control and stuck with UT +08.
d390 1
a390 1
# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) UT +08:30
d394 1
a394 1
# Zhongyuan Time ("Central plain Time") UT +08
d400 1
a400 1
# Guo says Shanghai switched to UT +08 "from the end of the 19th century".
d402 1
a402 1
# Long-shu Time (probably due to Long and Shu being two names of the area) UT +07
d409 1
a409 1
# Xin-zang Time ("Xinjiang-Tibet Time") UT +06
d422 1
a422 1
# Kunlun Time UT +05:30
d438 1
a438 1
# hours behind Beijing time, or UT +06. The government of the Xinjiang
d494 2
a495 2
# In the early days of the PRC, Tibet was given its own time zone (UT +06)
# but this was withdrawn in 1959 and never reinstated; see Tubten Khétsun,
d509 1
a509 1
# UT +06 at the start of 1928, the year of accession of the warlord Jin Shuren,
d511 2
a512 2
# guess) as the transition from LMT. Ignore the usage of +08 before
# 1986-02-01 under the theory that the transition date to +08 is unknown and
d514 1
a514 1
# +08 mandate back then.
d719 1
a719 1
# As per Yu-Cheng Chuang, say that Taiwan was at UT +09 from 1937-10-01
d772 1
a772 1
d774 1
a774 11
# IATA SSIM (1998-09) has Cyprus using EU rules for the first time.
# From Paul Eggert (2016-09-09):
# Yesterday's Cyprus Mail reports that Northern Cyprus followed Turkey's
# lead and switched from +02/+03 to +03 year-round.
# http://cyprus-mail.com/2016/09/08/two-time-zones-cyprus-turkey-will-not-turn-clocks-back-next-month/
#
# From Even Scharning (2016-10-31):
# Looks like the time zone split in Cyprus went through last night.
# http://cyprus-mail.com/2016/10/30/cyprus-new-division-two-time-zones-now-reality/
d789 1
a789 4
Zone Asia/Famagusta 2:15:48 - LMT 1921 Nov 14
2:00 Cyprus EE%sT 1998 Sep
2:00 EUAsia EE%sT 2016 Sep 8
3:00 - +03
d833 10
a842 9
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1992
3:00 E-EurAsia +03/+04 1994 Sep lastSun
4:00 E-EurAsia +04/+05 1996 Oct lastSun
4:00 1:00 +05 1997 Mar lastSun
4:00 E-EurAsia +04/+05 2004 Jun 27
3:00 RussiaAsia +03/+04 2005 Mar lastSun 2:00
4:00 - +04
d919 1
a919 1
# from UT +09 to +07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura
d930 1
a930 1
# The time zone abbreviations and UT offsets are:
d932 3
a934 3
# WIB - +07 - Waktu Indonesia Barat (Indonesia western time)
# WITA - +08 - Waktu Indonesia Tengah (Indonesia central time)
# WIT - +09 - Waktu Indonesia Timur (Indonesia eastern time)
d1561 17
d1589 2
a1590 2
# same), encompassing four provinces in the west: Aqtöbe, Atyraū,
# Mangghystaū, and West Kazakhstan. The other zone encompasses
d1594 1
a1594 156
# From Stepan Golosunov (2016-03-27):
# Review of the linked documents from http://adilet.zan.kz/
# produced the following data for post-1991 Kazakhstan:
#
# 0. Act of the Cabinet of Ministers of the USSR
# from 1991-02-04 No. 20
# http://pravo.gov.ru/proxy/ips/?docbody=&nd=102010545
# removed the extra hour ("decree time") on the territory of the USSR
# starting with the last Sunday of March 1991.
# It also allowed (but not mandated) Kazakh SSR, Kirghiz SSR, Tajik SSR,
# Turkmen SSR and Uzbek SSR to not have "summer" time.
#
# The 1992-01-13 act also refers to the act of the Cabinet of Ministers
# of the Kazakh SSR from 1991-03-20 No. 170 "About the act of the Cabinet
# of Ministers of the USSR from 1991-02-04 No. 20" but I didn't found its
# text.
#
# According to Izvestia newspaper No. 68 (23334) from 1991-03-20
# (page 6; available at http://libinfo.org/newsr/newsr2574.djvu via
# http://libinfo.org/index.php?id=58564) on 1991-03-31 at 2:00 during
# transition to "summer" time:
# Republic of Georgia, Latvian SSR, Lithuanian SSR, SSR Moldova,
# Estonian SSR; Komi ASSR; Kaliningrad oblast; Nenets autonomous okrug
# were to move clocks 1 hour forward.
# Kazakh SSR (excluding Uralsk oblast); Republic of Kyrgyzstan, Tajik
# SSR; Andijan, Jizzakh, Namangan, Sirdarya, Tashkent, Fergana oblasts
# of the Uzbek SSR were to move clocks 1 hour backwards.
# Other territories were to not move clocks.
# When the "summer" time would end on 1991-09-29, clocks were to be
# moved 1 hour backwards on the territory of the USSR excluding
# Kazakhstan, Kirghizia, Uzbekistan, Turkmenia, Tajikistan.
#
# Apparently there were last minute changes. Apparently Kazakh act No. 170
# was one of such changes.
#
# https://ru.wikipedia.org/wiki/Декретное время
# claims that Sovetskaya Rossiya newspaper on 1991-03-29 published that
# Nenets autonomous okrug, Komi and Kazakhstan (excluding Uralsk oblast)
# were to not move clocks and Uralsk oblast was to move clocks
# forward; on 1991-09-29 Kazakhstan was to move clocks backwards.
# (Probably there were changes even after that publication. There is an
# article claiming that Kaliningrad oblast decided on 1991-03-29 to not
# move clocks.)
#
# This implies that on 1991-03-31 Asia/Oral remained on +04/+05 while
# the rest of Kazakhstan switched from +06/+07 to +05/06 or from +05/06
# to +04/+05. It's unclear how Qyzylorda oblast moved into the fifth
# time belt. (By switching from +04/+05 to +05/+06 on 1991-09-29?) ...
#
# 1. Act of the Cabinet of Ministers of the Republic of Kazakhstan
# from 1992-01-13 No. 28
# http://adilet.zan.kz/rus/docs/P920000028_
# (text includes modification from the 1996 act)
# introduced new rules for calculation of time, mirroring Russian
# 1992-01-08 act. It specified that time would be calculated
# according to time belts plus extra hour ("decree time"), moved clocks
# on the whole territory of Kazakhstan 1 hour forward on 1992-01-19 at
# 2:00, specified DST rules. It acknowledged that Kazakhstan was
# located in the fourth and the fifth time belts and specified the
# border between them to be located east of Qostanay and Aktyubinsk
# oblasts (notably including Turgai and Qyzylorda oblasts into the fifth
# time belt).
#
# This means switch on 1992-01-19 at 2:00 from +04/+05 to +05/+06 for
# Asia/Aqtau, Asia/Aqtobe, Asia/Oral, Atyraū and Qostanay oblasts; from
# +05/+06 to +06/+07 for Asia/Almaty and Asia/Qyzylorda (and Arkalyk)....
#
# 2. Act of the Cabinet of Ministers of the Republic of Kazakhstan
# from 1992-03-27 No. 284
# http://adilet.zan.kz/rus/docs/P920000284_
# cancels extra hour ("decree time") for Uralsk and Qyzylorda oblasts
# since the last Sunday of March 1992, while keeping them in the fourth
# and the fifth time belts respectively.
#
# 3. Order of the Prime Minister of the Republic of Kazakhstan
# from 1994-09-23 No. 384
# http://adilet.zan.kz/rus/docs/R940000384_
# cancels the extra hour ("decree time") on the territory of Mangghystaū
# oblast since the last Sunday of September 1994 (saying that time on
# the territory would correspond to the third time belt as a
# result)....
#
# 4. Act of the Government of the Republic of Kazakhstan
# from 1996-05-08 No. 575
# http://adilet.zan.kz/rus/docs/P960000575_
# amends the 1992-01-13 act to end summer time in October instead
# of September, mirroring identical Russian change from 1996-04-23 act.
#
# 5. Act of the Government of the Republic of Kazakhstan
# from 1999-03-26 No. 305
# http://adilet.zan.kz/rus/docs/P990000305_
# cancels the extra hour ("decree time") for Atyraū oblast since the
# last Sunday of March 1999 while retaining the oblast in the fourth
# time belt.
#
# This means change from +05/+06 to +04/+05....
#
# 6. Act of the Government of the Republic of Kazakhstan
# from 2000-11-23 No. 1749
# http://adilet.zan.kz/rus/archive/docs/P000001749_/23.11.2000
# replaces the previous five documents.
#
# The only changes I noticed are in definition of the border between the
# fourth and the fifth time belts. They account for changes in spelling
# and administrative division (splitting of Turgai oblast in 1997
# probably changed time in territories incorporated into Qostanay oblast
# (including Arkalyk) from +06/+07 to +05/+06) and move Qyzylorda oblast
# from being in the fifth time belt and not using decree time into the
# fourth time belt (no change in practice).
#
# 7. Act of the Government of the Republic of Kazakhstan
# from 2003-12-29 No. 1342
# http://adilet.zan.kz/rus/docs/P030001342_
# modified the 2000-11-23 act. No relevant changes, apparently.
#
# 8. Act of the Government of the Republic of Kazakhstan
# from 2004-07-20 No. 775
# http://adilet.zan.kz/rus/archive/docs/P040000775_/20.07.2004
# modified the 2000-11-23 act to move Qostanay and Qyzylorda oblasts into
# the fifth time belt and add Aktobe oblast to the list of regions not
# using extra hour ("decree time"), leaving Kazakhstan with only 2 time
# zones (+04/+05 and +06/+07). The changes were to be implemented
# during DST transitions in 2004 and 2005 but the acts got radically
# amended before implementation happened.
#
# 9. Act of the Government of the Republic of Kazakhstan
# from 2004-09-15 No. 1059
# http://adilet.zan.kz/rus/docs/P040001059_
# modified the 2000-11-23 act to remove exceptions from the "decree time"
# (leaving Kazakhstan in +05/+06 and +06/+07 zones), amended the
# 2004-07-20 act to implement changes for Atyraū, West Kazakhstan,
# Qostanay, Qyzylorda and Mangghystaū oblasts by not moving clocks
# during the 2004 transition to "winter" time.
#
# This means transition from +04/+05 to +05/+06 for Atyraū oblast (no
# zone currently), Asia/Oral, Asia/Aqtau and transition from +05/+06 to
# +06/+07 for Qostanay oblast (Qostanay and Arkalyk, no zones currently)
# and Asia/Qyzylorda on 2004-10-31 at 3:00....
#
# 10. Act of the Government of the Republic of Kazakhstan
# from 2005-03-15 No. 231
# http://adilet.zan.kz/rus/docs/P050000231_
# removes DST provisions from the 2000-11-23 act, removes most of the
# (already implemented) provisions from the 2004-07-20 and 2004-09-15
# acts, comes into effect 10 days after official publication.
# The only practical effect seems to be the abolition of the summer
# time.
#
# Unamended version of the act of the Government of the Russian Federation
# No. 23 from 1992-01-08 [See 'europe' file for details].
# Kazakh 1992-01-13 act appears to provide the same rules and 1992-03-27
# act was to be enacted on the last Sunday of March 1992.
# From Paul Eggert (2016-11-07):
# The tables below reflect Golosunov's remarks, with exceptions as noted.
a1597 2
# This includes KZ-AKM, KZ-ALA, KZ-ALM, KZ-AST, KZ-BAY, KZ-VOS, KZ-ZHA,
# KZ-KAR, KZ-SEV, KZ-PAV, and KZ-YUZ.
d1599 6
a1604 8
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s
6:00 RussiaAsia +06/+07 2004 Oct 31 2:00s
6:00 - +06
# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-KZY)
# This currently includes Qostanay (aka Kostanay, Kustanay) (KZ-KUS);
# see comments below.
d1606 10
a1615 25
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1991 Sep 29 2:00s
5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s
6:00 RussiaAsia +06/+07 1992 Mar 29 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
6:00 - +06
# The following zone is like Asia/Qyzylorda except for being one
# hour earlier from 1991-09-29 to 1992-03-29. The 1991/2 rules for
# Qostenay are unclear partly because of the 1997 Turgai
# reorganization, so this zone is commented out for now.
#Zone Asia/Qostanay 4:14:20 - LMT 1924 May 2
# 4:00 - +04 1930 Jun 21
# 5:00 - +05 1981 Apr 1
# 5:00 1:00 +06 1981 Oct 1
# 6:00 - +06 1982 Apr 1
# 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
# 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
# 5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
# 6:00 - +06
#
# Aqtöbe (aka Aktobe, formerly Aktyubinsk) (KZ-AKT)
d1617 9
a1625 9
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
5:00 - +05
# Mangghystaū (KZ-MAN)
d1629 10
a1638 22
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 1994 Sep 25 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
# Atyraū (KZ-ATY) is like Mangghystaū except it switched from
# +04/+05 to +05/+06 in spring 1999, not fall 1994.
Zone Asia/Atyrau 3:27:44 - LMT 1924 May 2
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 1999 Mar 28 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
# West Kazakhstan (KZ-ZAP)
# From Paul Eggert (2016-03-18):
# The 1989 transition is from USSR act No. 227 (1989-03-14).
d1640 9
a1648 9
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1989 Mar 26 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 1992 Mar 29 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
d1669 5
a1673 5
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 RussiaAsia +05/+06 1991 Aug 31 2:00
5:00 Kyrgyz +05/+06 2005 Aug 12
6:00 - +06
d1712 1
a1712 1
# From Paul Eggert (2016-08-23):
d1715 1
a1715 1
# 1908: Official Journal Article No. 3994 (decree No. 5)
d1720 1
d1722 3
a1724 2
# (Another source "1987: Law No. 3919 (1986-12-31)" was in the 2014-10-30
# edition of the Korean Wikipedia entry.)
d1730 1
a1730 2
# For Pyongyang, guess no changes from World War II until 2015, as we
# have no information otherwise.
d1890 1
a1890 1
# travelmongolia.org says there are two time zones (UT +07, +08) with no DST.
d2393 5
d2407 1
a2407 15
# From Sharef Mustafa (2016-10-19):
# [T]he Palestinian cabinet decision (Mar 8th 2016) published on
# http://www.palestinecabinet.gov.ps/WebSite/Upload/Decree/GOV_17/16032016134830.pdf
# states that summer time will end on Oct 29th at 01:00.
#
# From Tim Parenti (2016-10-19):
# Predict fall transitions on October's last Saturday at 01:00 from now on.
# This is consistent with the 2016 transition as well as our spring
# predictions.
#
# From Paul Eggert (2016-10-19):
# It's also consistent with predictions in the following URLs today:
# http://www.timeanddate.com/time/change/gaza-strip/gaza
# http://www.timeanddate.com/time/change/west-bank/hebron
d2436 1
a2436 1
Rule Palestine 2014 2015 - Oct Fri>=21 0:00 0 -
a2438 1
Rule Palestine 2016 max - Oct lastSat 1:00 0 -
d2442 1
a2442 1
2:00 Zion EET/EEST 1948 May 15
d2455 1
a2455 1
2:00 Zion EET/EEST 1948 May 15
d2526 1
a2526 1
# time zones; the other zone, at UT +04, was in the far eastern part of
d2588 28
a2615 14
# From Sadika Sumanapala (2016-10-19):
# According to http://www.sltime.org (maintained by Measurement Units,
# Standards & Services Department, Sri Lanka) abbreviation for Sri Lanka
# standard time is SLST.
#
# From Paul Eggert (2016-10-18):
# "SLST" seems to be reasonably recent and rarely-used outside time
# zone nerd sources. I searched Google News and found three uses of
# it in the International Business Times of India in February and
# March of this year when discussing cricket match times, but nothing
# since then (though there has been a lot of cricket) and nothing in
# other English-language news sources. Our old abbreviation "LKT" is
# even worse. For now, let's use a numeric abbreviation; we can
# switch to "SLST" if it catches on.
d2620 7
a2626 7
5:30 - +0530 1942 Jan 5
5:30 0:30 +0530/+06 1942 Sep
5:30 1:00 +0530/+0630 1945 Oct 16 2:00
5:30 - +0530 1996 May 25 0:00
6:30 - +0630 1996 Oct 26 0:30
6:00 - +06 2006 Apr 15 0:30
5:30 - +0530
d2795 4
a2798 4
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 1:00 +05/+06 1991 Sep 9 2:00s
5:00 - +05
d2812 5
a2816 4
4:00 - +04 1930 Jun 21
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00
5:00 - +05
d2828 7
a2834 6
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1992
5:00 - +05
d2837 5
a2841 4
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00
5:00 RussiaAsia +05/+06 1992
5:00 - +05
@
1.1.1.1.4.7
log
@Pull up following revision(s) (requested by kre in ticket #1374):
doc/3RDPARTY: 1.1420 via patch
distrib/sets/lists/base/mi: 1.1155
external/public-domain/tz/dist/Makefile: up to 1.1.1.17
external/public-domain/tz/dist/NEWS: up to 1.1.1.17
external/public-domain/tz/dist/TZDATA_VERSION: up to 1.7
external/public-domain/tz/dist/Theory: up to 1.1.1.10
external/public-domain/tz/dist/africa: up to 1.1.1.10
external/public-domain/tz/dist/antarctica: up to 1.1.1.8
external/public-domain/tz/dist/asia: up to 1.1.1.16
external/public-domain/tz/dist/australasia: up to 1.1.1.11
external/public-domain/tz/dist/backward: up to 1.1.1.7
external/public-domain/tz/dist/backzone: up to 1.1.1.11
external/public-domain/tz/dist/europe: up to 1.1.1.17
external/public-domain/tz/dist/leap-seconds.list: up to 1.1.1.7
external/public-domain/tz/dist/leapseconds: up to 1.1.1.8
external/public-domain/tz/dist/northamerica: up to 1.1.1.15
external/public-domain/tz/dist/southamerica: up to 1.1.1.11
external/public-domain/tz/dist/version: up to 1.1.1.4
external/public-domain/tz/dist/zone.tab: up to 1.1.1.11
external/public-domain/tz/dist/zone1970.tab: up to 1.1.1.13
Update to tzdata2017a.
@
text
@d9 1
a9 1
# From Paul Eggert (2017-01-13):
d16 2
a17 2
# Many years ago Gwillim Law wrote that a good source
# for time zone data was the International Air Transport
d38 3
a40 1
# The following alphabetic abbreviations appear in these tables:
d45 3
d49 1
d53 4
a56 1
# 8:30 KST KDT Korea when at +0830
a60 4
# Otherwise, these tables typically use numeric abbreviations like +03
# and +0330 for integer hour and minute UTC offsets. Although earlier
# editions invented alphabetic time zone abbreviations for every
# offset, this did not reflect common practice.
d68 1
a68 1
# Worldwide Edition).
d89 2
a90 2
4:00 - +04 1945
4:30 - +0430
d233 6
a238 5
6:30 - +0630 1942 May 15
5:30 - +0530 1942 Sep
6:30 - +0630 1951 Sep 30
6:00 - +06 2009
6:00 Dhaka +06/+07
d243 2
a244 2
5:30 - +0530 1987 Oct
6:00 - +06
d254 2
a255 2
5:00 - +05 1996
6:00 - +06
d260 2
a261 2
7:30 - +0730 1933
8:00 - +08
d270 3
a272 3
6:30 - +0630 1942 May
9:00 - +09 1945 May 3
6:30 - +0630
d335 1
a335 1
# From Paul Eggert (2017-01-05):
d393 1
a393 1
# Now part of Asia/Shanghai; its pre-1970 times are not recorded here.
d397 1
a397 1
# Now part of Asia/Shanghai.
d399 2
d404 2
a405 2
# Long-shu Time (probably as Long and Shu were two names of the area) UT +07
# Now part of Asia/Shanghai; its pre-1970 times are not recorded here.
d407 1
a407 1
# most of Gansu; west Inner Mongolia; east Qinghai; and the Guangdong
d412 3
a414 3
# This region is now part of either Asia/Urumqi or Asia/Shanghai with
# current boundaries uncertain; times before 1970 for areas that
# disagree with Ürümqi or Shanghai are not recorded here.
d425 1
a425 1
# This region is now in the same status as Xin-zang Time (see above).
d526 1
a526 1
6:00 - +06
d745 1
a745 1
8:00 - CST 1937 Oct 1
d751 14
a764 14
Rule Macau 1961 1962 - Mar Sun>=16 3:30 1:00 D
Rule Macau 1961 1964 - Nov Sun>=1 3:30 0 S
Rule Macau 1963 only - Mar Sun>=16 0:00 1:00 D
Rule Macau 1964 only - Mar Sun>=16 3:30 1:00 D
Rule Macau 1965 only - Mar Sun>=16 0:00 1:00 D
Rule Macau 1965 only - Oct 31 0:00 0 S
Rule Macau 1966 1971 - Apr Sun>=16 3:30 1:00 D
Rule Macau 1966 1971 - Oct Sun>=16 3:30 0 S
Rule Macau 1972 1974 - Apr Sun>=15 0:00 1:00 D
Rule Macau 1972 1973 - Oct Sun>=15 0:00 0 S
Rule Macau 1974 1977 - Oct Sun>=15 3:30 0 S
Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 D
Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 D
Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 S
d767 2
a768 1
8:00 Macau C%sT
d884 5
a888 4
8:00 - +08 1942 Feb 21 23:00
9:00 - +09 1976 May 3
8:00 - +08 2000 Sep 17 0:00
9:00 - +09
d903 1
a903 1
6:30 - +0630 1942 May 15
d905 1
a905 1
5:30 1:00 +0630 1945 Oct 15
d956 6
a961 6
7:20 - +0720 1932 Nov
7:30 - +0730 1942 Mar 23
9:00 - +09 1945 Sep 23
7:30 - +0730 1948 May
8:00 - +08 1950 May
7:30 - +0730 1964
d966 5
a970 5
7:30 - +0730 1942 Jan 29
9:00 - +09 1945 Sep 23
7:30 - +0730 1948 May
8:00 - +08 1950 May
7:30 - +0730 1964
d976 2
a977 2
8:00 - +08 1942 Feb 9
9:00 - +09 1945 Sep 23
d981 2
a982 2
9:00 - +09 1944 Sep 1
9:30 - +0930 1964
d1014 2
d1122 3
a1124 3
3:30 - +0330 1977 Nov
4:00 Iran +04/+05 1979
3:30 Iran +0330/+0430
d1167 2
a1168 2
3:00 - +03 1982 May
3:00 Iraq +03/+04
d1467 2
d1744 1
a1744 17
# From Stepan Golosunov (2016-11-08):
# Turgai reorganization should affect only southern part of Qostanay
# oblast. Which should probably be separated into Asia/Arkalyk zone.
# (There were also 1970, 1988 and 1990 Turgai oblast reorganizations
# according to wikipedia.)
#
# [For Qostanay] http://www.ng.kz/gazeta/195/hranit/
# suggests that clocks were to be moved 40 minutes backwards on
# 1920-01-01 to the fourth time belt. But I do not understand
# how that could happen....
#
# [For Atyrau and Oral] 1919 decree
# (http://www.worldtimezone.com/dst_news/dst_news_russia-1919-02-08.html
# and in Byalokoz) lists Ural river (plus 10 versts on its left bank) in
# the third time belt (before 1930 this means +03).
# From Paul Eggert (2016-12-06):
d1774 1
a1774 1
# Qostanay are unclear partly because of the 1997 Turgai
d1811 1
a1811 1
3:00 - +03 1930 Jun 21
d1823 1
a1823 1
3:00 - +03 1930 Jun 21
d1929 1
d1936 1
d1991 7
a1997 7
7:00 - +07 1933 Jan 1
7:00 0:20 +0720 1936 Jan 1
7:20 - +0720 1941 Sep 1
7:30 - +0730 1942 Feb 16
9:00 - +09 1945 Sep 12
7:30 - +0730 1982 Jan 1
8:00 - +08
d2004 5
a2008 4
7:30 - +0730 1933
8:00 NBorneo +08/+0820 1942 Feb 16
9:00 - +09 1945 Sep 12
8:00 - +08
d2014 1
a2014 1
5:00 - +05
a2140 4
# From Ganbold Tsagaankhuu (2017-02-09):
# Mongolian Government meeting has concluded today to cancel daylight
# saving time adoption in Mongolia. Source: http://zasag.mn/news/view/16192
d2147 2
a2148 2
Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 S
Rule Mongol 2015 2016 - Sep lastSat 0:00 0 -
d2153 2
a2154 2
6:00 - +06 1978
7:00 Mongol +07/+08
d2157 2
a2158 2
7:00 - +07 1978
8:00 Mongol +08/+09
d2162 4
a2165 4
7:00 - +07 1978
8:00 - +08 1983 Apr
9:00 Mongol +09/+10 2008 Mar 31
8:00 Mongol +08/+09
d2170 2
a2171 2
5:30 - +0530 1986
5:45 - +0545
d2320 4
a2323 4
5:30 - +0530 1942 Sep
5:30 1:00 +0630 1945 Oct 15
5:30 - +0530 1951 Sep 30
5:00 - +05 1971 Mar 26
d2688 3
a2690 3
8:00 Phil +08/+09 1942 May
9:00 - +09 1944 Nov
8:00 Phil +08/+09
d2695 2
a2696 2
4:00 - +04 1972 Jun
3:00 - +03
d2723 1
a2723 1
3:00 - +03
d2733 8
a2740 7
7:00 - +07 1933 Jan 1
7:00 0:20 +0720 1936 Jan 1
7:20 - +0720 1941 Sep 1
7:30 - +0730 1942 Feb 16
9:00 - +09 1945 Sep 12
7:30 - +0730 1982 Jan 1
8:00 - +08
d2799 2
a2800 2
5:30 0:30 +06 1942 Sep
5:30 1:00 +0630 1945 Oct 16 2:00
d2982 1
a2982 1
7:00 - +07
d2998 1
a2998 1
4:00 - +04
d3071 9
a3079 9
7:06:30 - PLMT 1911 May 1 # Phù Liễn MT
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 2
7:00 - +07 1947 Apr 1
8:00 - +08 1955 Jul 1
7:00 - +07 1959 Dec 31 23:00
8:00 - +08 1975 Jun 13
7:00 - +07
@
1.1.1.1.4.7.2.1
log
@Pull up following revision(s) (requested by kre in ticket #1519):
distrib/sets/lists/base/mi: 1.1164
doc/3RDPARTY: 1.2326 via patch
external/public-domain/tz/dist/CONTRIBUTING: up to 1.1.1.4
external/public-domain/tz/dist/LICENSE: up to 1.1.1.3
external/public-domain/tz/dist/Makefile: up to 1.1.1.18
external/public-domain/tz/dist/NEWS: up to 1.1.1.19
external/public-domain/tz/dist/TZDATA_VERSION: up to 1.9
external/public-domain/tz/dist/Theory: delete
external/public-domain/tz/dist/africa: up to 1.1.1.12
external/public-domain/tz/dist/antarctica: up to 1.1.1.9
external/public-domain/tz/dist/asia: up to 1.1.1.17
external/public-domain/tz/dist/australasia: up to 1.1.1.12
external/public-domain/tz/dist/backward: up to 1.1.1.8
external/public-domain/tz/dist/backzone: up to 1.1.1.12
external/public-domain/tz/dist/calendars: up to 1.1.1.1
external/public-domain/tz/dist/checklinks.awk: up to 1.1.1.3
external/public-domain/tz/dist/europe: up to 1.1.1.18
external/public-domain/tz/dist/leap-seconds.list: up to 1.1.1.8
external/public-domain/tz/dist/leapseconds: up to 1.1.1.9
external/public-domain/tz/dist/leapseconds.awk: up to 1.1.1.6
external/public-domain/tz/dist/northamerica: up to 1.1.1.17
external/public-domain/tz/dist/southamerica: up to 1.1.1.12
external/public-domain/tz/dist/theory.html: up to 1.1.1.1
external/public-domain/tz/dist/version: up to 1.1.1.6
external/public-domain/tz/dist/zishrink.awk: up to 1.1.1.1
external/public-domain/tz/dist/zone.tab: up to 1.1.1.12
external/public-domain/tz/dist/zone1970.tab: up to 1.1.1.14
Update tzdata to 2017c.
@
text
@d29 1
a29 1
# https://www.jstor.org/stable/1774359
d78 2
a79 2
Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 S
Rule RussiaAsia 1996 2010 - Oct lastSun 2:00s 0 -
a111 3
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 S
Rule Armenia 2011 only - Oct lastSun 2:00s 0 -
d118 1
a118 2
4:00 RussiaAsia +04/+05 2011
4:00 Armenia +04/+05
d130 1
a130 1
# https://www.azernews.az/azerbaijan/94137.html
d171 1
a171 1
# https://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601
d175 1
a175 1
# https://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html
a260 6
# From Paul Eggert (2017-04-20):
# Page 27 of Reed & Low (cited for Asia/Kolkata) says "Rangoon local time is
# used upon the railways and telegraphs of Burma, and is 6h. 24m. 47s. ahead
# of Greenwich." This refers to the period before Burma's transition to +0630,
# a transition for which Shanks is the only source.
d262 2
a263 2
Zone Asia/Yangon 6:24:47 - LMT 1880 # or Rangoon
6:24:47 - RMT 1920 # Rangoon local time
d320 1
a320 1
# https://www.astro.com/atlas site [with provinces and county
d472 1
a472 1
# https://content.time.com/time/magazine/article/0,9171,960684,00.html
d629 1
a629 1
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
d642 1
a642 1
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
a777 6
# From Paul Eggert (2017-10-18):
# Northern Cyprus will reinstate winter time on October 29, thus
# staying in sync with the rest of Cyprus. See: Anastasiou A.
# Cyprus to remain united in time. Cyprus Mail 2017-10-17.
# https://cyprus-mail.com/2017/10/17/cyprus-remain-united-time/
d795 1
a795 2
3:00 - +03 2017 Oct 29 1:00u
2:00 EUAsia EE%sT
d855 1
a855 1
# (1999-12-26/31):
d883 1
a883 1
# https://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/
d890 4
a893 45
# From Paul Eggert (2017-04-20):
# Good luck trying to nail down old timekeeping records in India.
# "... in the nineteenth century ... Madras Observatory took its magnetic
# measurements on Göttingen time, its meteorological measurements on Madras
# (local) time, dropped its time ball on Greenwich (ocean navigator's) time,
# and distributed civil (local time)." -- Bartky IR. Selling the true time:
# 19th-century timekeeping in america. Stanford U Press (2000), 247 note 19.
# "A more potent cause of resistance to the general adoption of the present
# standard time lies in the fact that it is Madras time. The citizen of
# Bombay, proud of being 'primus in Indis' and of Calcutta, equally proud of
# his city being the Capital of India, and - for a part of the year - the Seat
# of the Supreme Government, alike look down on Madras, and refuse to change
# the time they are using, for that of what they regard as a benighted
# Presidency; while Madras, having for long given the standard time to the
# rest of India, would resist the adoption of any other Indian standard in its
# place." -- Oldham RD. On Time in India: a suggestion for its improvement.
# Proceedings of the Asiatic Society of Bengal (April 1899), 49-55.
#
# "In 1870 ... Madras time - 'now used by the telegraph and regulated from the
# only government observatory' - was suggested as a standard railway time,
# first to be adopted on the Great Indian Peninsular Railway (GIPR)....
# Calcutta, Bombay, and Karachi, were to be allowed to continue with their
# local time for civil purposes." - Prasad R. Tracks of Change: Railways and
# Everyday Life in Colonial India. Cambridge University Press (2016), 145.
#
# Reed S, Low F. The Indian Year Book 1936-37. Bennett, Coleman, pp 27-8.
# https://archive.org/details/in.ernet.dli.2015.282212
# This lists +052110 as Madras local time used in railways, and says that on
# 1906-01-01 railways and telegraphs in India switched to +0530. Some
# municipalities retained their former time, and the time in Calcutta
# continued to depend on whether you were at the railway station or at
# government offices. Government time was at +055320 (according to Shanks) or
# at +0554 (according to the Indian Year Book). Railway time is more
# appropriate for our purposes, as it was better documented, it is what we do
# elsewhere (e.g., Europe/London before 1880), and after 1906 it was
# consistent in the region now identified by Asia/Kolkata. So, use railway
# time for 1870-1941. Shanks is our only (and dubious) source for the
# 1941-1945 data.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kolkata 5:53:28 - LMT 1854 Jun 28 # Kolkata
5:53:20 - HMT 1870 # Howrah Mean Time?
5:21:10 - MMT 1906 Jan 1 # Madras local time
5:30 - IST 1941 Oct
5:30 1:00 +0630 1942 May 15
d897 1
a897 1
# Since 1970 the following are like Asia/Kolkata:
d1039 1
a1039 1
# https://uk.reuters.com/article/oilRpt/idUKBLA65048420070916
d1138 1
a1138 1
# https://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
d1446 1
a1446 1
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
d1451 1
a1451 1
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
d1513 1
a1513 1
# https://www.timeanddate.com/news/time/jordan-reverses-dst-decision.html
d1871 1
a1871 1
# https://mm.icann.org/pipermail/tz/2014-October/021830.html
d1873 1
a1873 1
# https://ko.wikipedia.org/wiki/한국_표준시
d2095 1
a2095 1
# https://www.timeanddate.com/worldclock/city.html?n=1026
d2225 1
a2225 1
# http://www.worldtimezone.com/dst_news/dst_news_pakistan01.html
d2291 1
a2291 1
# https://www.timeanddate.com/news/time/pakistan-ends-dst09.html
d2473 1
a2473 1
# https://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html
d2511 1
a2511 1
# https://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html
d2521 1
a2521 1
# https://www.timeanddate.com/news/time/palestine-dst-2011.html
d2531 1
a2531 1
# https://www.jpost.com/MiddleEast/Article.aspx?id=235650
d2552 1
a2552 1
# https://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html
d2572 1
a2572 1
# and https://www.raya.ps/ar/news/890705.html say Palestine areas will
d2576 1
a2576 1
# https://www.timeanddate.com/time/change/west-bank/ramallah?year=2014
d2600 2
a2601 2
# https://www.timeanddate.com/time/change/gaza-strip/gaza
# https://www.timeanddate.com/time/change/west-bank/hebron
d2664 1
a2664 1
# https://www.staff.science.uu.nl/~gent0113/idl/idl_philippines.htm
d2928 1
a2928 1
# https://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html
d2955 1
a2955 1
# https://www.timeanddate.com/news/time/syria-dst-2012.html
d3038 1
a3038 1
# https://mm.icann.org/pipermail/tz/2014-October/021654.html
@
1.1.1.1.4.7.2.2
log
@external/public-domain/tz/dist/ziguard.awk up to 1.1.1.1
external/public-domain/tz/dist/CONTRIBUTING up to 1.1.1.5
external/public-domain/tz/dist/Makefile up to 1.1.1.20
external/public-domain/tz/dist/NEWS up to 1.1.1.21
external/public-domain/tz/dist/README up to 1.1.1.6
external/public-domain/tz/dist/TZDATA_VERSION up to 1.11
external/public-domain/tz/dist/africa up to 1.1.1.14
external/public-domain/tz/dist/antarctica up to 1.1.1.10
external/public-domain/tz/dist/asia up to 1.1.1.19
external/public-domain/tz/dist/australasia up to 1.1.1.14
external/public-domain/tz/dist/backzone up to 1.1.1.14
external/public-domain/tz/dist/checktab.awk up to 1.1.1.9
external/public-domain/tz/dist/europe up to 1.1.1.20
external/public-domain/tz/dist/leap-seconds.list up to 1.1.1.9
external/public-domain/tz/dist/leapseconds up to 1.1.1.10
external/public-domain/tz/dist/northamerica up to 1.1.1.19
external/public-domain/tz/dist/southamerica up to 1.1.1.14
external/public-domain/tz/dist/theory.html up to 1.1.1.3
external/public-domain/tz/dist/version up to 1.1.1.8
external/public-domain/tz/dist/zishrink.awk up to 1.1.1.3
external/public-domain/tz/dist/zone.tab up to 1.1.1.14
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.16
doc/3RDPARTY 1.1506 (patch)
Updated tzdata to 2018d.
[kre, ticket #1589]
@
text
@d53 1
a53 1
# and +0330 for integer hour and minute UT offsets. Although earlier
d72 1
a72 1
Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 -
d75 1
a75 1
Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 -
d78 1
a78 1
Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 -
d113 1
a113 1
Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 -
d139 1
a139 1
Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 -
d226 1
a226 1
Rule Dhaka 2009 only - Jun 19 23:00 1:00 -
d650 1
a650 1
# (UT+9). The adoption began on Oct 1, 1937. The original text can
d654 1
a654 1
# That is, the time zone of Taipei switched to UT+9 on Oct 1, 1937.
d657 2
a658 2
# I've found more evidence about when the time zone was switched from UT+9
# back to UT+8 after WW2. I believe it was on Sep 21, 1945. In a document
d660 1
a660 1
# zone back to Western Standard Time (UT+8) on Sep 21. And in another
a766 1
# See Europe/Lisbon for info about the 1912 transition.
d768 1
a768 1
Zone Asia/Macau 7:34:20 - LMT 1911 Dec 31 16:00u
d1109 47
a1155 47
Rule Iran 1978 1980 - Mar 21 0:00 1:00 -
Rule Iran 1978 only - Oct 21 0:00 0 -
Rule Iran 1979 only - Sep 19 0:00 0 -
Rule Iran 1980 only - Sep 23 0:00 0 -
Rule Iran 1991 only - May 3 0:00 1:00 -
Rule Iran 1992 1995 - Mar 22 0:00 1:00 -
Rule Iran 1991 1995 - Sep 22 0:00 0 -
Rule Iran 1996 only - Mar 21 0:00 1:00 -
Rule Iran 1996 only - Sep 21 0:00 0 -
Rule Iran 1997 1999 - Mar 22 0:00 1:00 -
Rule Iran 1997 1999 - Sep 22 0:00 0 -
Rule Iran 2000 only - Mar 21 0:00 1:00 -
Rule Iran 2000 only - Sep 21 0:00 0 -
Rule Iran 2001 2003 - Mar 22 0:00 1:00 -
Rule Iran 2001 2003 - Sep 22 0:00 0 -
Rule Iran 2004 only - Mar 21 0:00 1:00 -
Rule Iran 2004 only - Sep 21 0:00 0 -
Rule Iran 2005 only - Mar 22 0:00 1:00 -
Rule Iran 2005 only - Sep 22 0:00 0 -
Rule Iran 2008 only - Mar 21 0:00 1:00 -
Rule Iran 2008 only - Sep 21 0:00 0 -
Rule Iran 2009 2011 - Mar 22 0:00 1:00 -
Rule Iran 2009 2011 - Sep 22 0:00 0 -
Rule Iran 2012 only - Mar 21 0:00 1:00 -
Rule Iran 2012 only - Sep 21 0:00 0 -
Rule Iran 2013 2015 - Mar 22 0:00 1:00 -
Rule Iran 2013 2015 - Sep 22 0:00 0 -
Rule Iran 2016 only - Mar 21 0:00 1:00 -
Rule Iran 2016 only - Sep 21 0:00 0 -
Rule Iran 2017 2019 - Mar 22 0:00 1:00 -
Rule Iran 2017 2019 - Sep 22 0:00 0 -
Rule Iran 2020 only - Mar 21 0:00 1:00 -
Rule Iran 2020 only - Sep 21 0:00 0 -
Rule Iran 2021 2023 - Mar 22 0:00 1:00 -
Rule Iran 2021 2023 - Sep 22 0:00 0 -
Rule Iran 2024 only - Mar 21 0:00 1:00 -
Rule Iran 2024 only - Sep 21 0:00 0 -
Rule Iran 2025 2027 - Mar 22 0:00 1:00 -
Rule Iran 2025 2027 - Sep 22 0:00 0 -
Rule Iran 2028 2029 - Mar 21 0:00 1:00 -
Rule Iran 2028 2029 - Sep 21 0:00 0 -
Rule Iran 2030 2031 - Mar 22 0:00 1:00 -
Rule Iran 2030 2031 - Sep 22 0:00 0 -
Rule Iran 2032 2033 - Mar 21 0:00 1:00 -
Rule Iran 2032 2033 - Sep 21 0:00 0 -
Rule Iran 2034 2035 - Mar 22 0:00 1:00 -
Rule Iran 2034 2035 - Sep 22 0:00 0 -
d1162 2
a1163 2
Rule Iran 2036 max - Mar 21 0:00 1:00 -
Rule Iran 2036 max - Sep 21 0:00 0 -
d1199 6
a1204 6
Rule Iraq 1982 only - May 1 0:00 1:00 -
Rule Iraq 1982 1984 - Oct 1 0:00 0 -
Rule Iraq 1983 only - Mar 31 0:00 1:00 -
Rule Iraq 1984 1985 - Apr 1 0:00 1:00 -
Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 -
Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 -
d1208 2
a1209 2
Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 -
Rule Iraq 1991 2007 - Oct 1 3:00s 0 -
d1467 11
a1477 11
# From Takayuki Nikai (2018-01-19):
# The source of information is Japanese law.
# http://www.shugiin.go.jp/internet/itdb_housei.nsf/html/houritsu/00219480428029.htm
# http://www.shugiin.go.jp/internet/itdb_housei.nsf/html/houritsu/00719500331039.htm
# ... In summary, it is written as follows. From 24:00 on the first Saturday
# in May, until 0:00 on the day after the second Saturday in September.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Japan 1948 only - May Sat>=1 24:00 1:00 D
Rule Japan 1948 1951 - Sep Sun>=9 0:00 0 S
Rule Japan 1949 only - Apr Sat>=1 24:00 1:00 D
Rule Japan 1950 1951 - May Sat>=1 24:00 1:00 D
d1481 2
a1482 1
# Observatory: 139° 44' 40.90" E (9h 18m 58.727s), 35° 39' 16.0" N.
d1490 1
a1490 1
# which stands for the time on 135° E.
d1493 1
a1493 1
# time", which stands for the time on 120° E.... But "western standard
d1508 1
a1508 1
# Central Time (UT+9). The adoption began on Oct 1, 1937.
d1906 1
a1906 1
Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 -
d1908 1
a1908 1
Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 -
d2040 1
a2040 1
Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 -
d2069 2
a2070 2
Zone Indian/Maldives 4:54:00 - LMT 1880 # Malé
4:54:00 - MMT 1960 # Malé Mean Time
d2185 1
a2185 1
Rule Mongol 1983 1984 - Apr 1 0:00 1:00 -
d2202 1
a2202 1
Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 -
d2205 1
a2205 1
Rule Mongol 2001 only - Apr lastSat 2:00 1:00 -
d2207 2
a2208 2
Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 -
Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 -
d2642 3
a2660 10
# From Sharef Mustafa (2018-03-16):
# Palestine summer time will start on Mar 24th 2018 by advancing the
# clock by 60 minutes as per Palestinian cabinet decision published on
# the offical website, though the decree did not specify the exact
# time of the time shift.
# http://www.palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e7a42ab7-ee23-435a-b9c8-a4f7e81f3817
#
# From Paul Eggert (2018-03-16):
# For 2016 on, predict spring transitions on March's fourth Saturday at 01:00.
d2690 1
a2690 1
Rule Palestine 2016 max - Mar Sat>=22 1:00 1:00 S
d2740 1
a2740 1
Rule Phil 1936 only - Nov 1 0:00 1:00 -
d2742 1
a2742 1
Rule Phil 1954 only - Apr 12 0:00 1:00 -
d2744 1
a2744 1
Rule Phil 1978 only - Mar 22 0:00 1:00 -
d3100 1
a3100 1
# Phù Liễn Observatory, legally 104° 17' 17" east of Paris.
d3102 1
a3102 1
# the Paris Meridian (2° 20' 14.03" E); the former yields 07:06:30.1333...
@
1.1.1.1.4.7.2.3
log
@Sync external/public-domain/tz/dist to current, requested by kre
in ticket #1644:
external/public-domain/tz/dist/CONTRIBUTING up to 1.1.1.6
external/public-domain/tz/dist/Makefile up to 1.1.1.22
external/public-domain/tz/dist/NEWS up to 1.1.1.24
external/public-domain/tz/dist/README up to 1.1.1.7
external/public-domain/tz/dist/TZDATA_VERSION up to 1.14
external/public-domain/tz/dist/africa up to 1.1.1.17
external/public-domain/tz/dist/antarctica up to 1.1.1.11
external/public-domain/tz/dist/asia up to 1.1.1.21
external/public-domain/tz/dist/australasia up to 1.1.1.16
external/public-domain/tz/dist/backward up to 1.1.1.9
external/public-domain/tz/dist/backzone up to 1.1.1.15
external/public-domain/tz/dist/etcetera up to 1.1.1.3
external/public-domain/tz/dist/europe up to 1.1.1.23
external/public-domain/tz/dist/factory up to 1.1.1.3
external/public-domain/tz/dist/leap-seconds.list up to 1.1.1.10
external/public-domain/tz/dist/leapseconds up to 1.1.1.11
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.7
external/public-domain/tz/dist/northamerica up to 1.1.1.21
external/public-domain/tz/dist/pacificnew up to 1.1.1.2
external/public-domain/tz/dist/southamerica up to 1.1.1.15
external/public-domain/tz/dist/systemv up to 1.1.1.2
external/public-domain/tz/dist/theory.html up to 1.1.1.6
external/public-domain/tz/dist/version up to 1.1.1.11
external/public-domain/tz/dist/yearistype.sh up to 1.1.1.2
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.3
external/public-domain/tz/dist/zishrink.awk up to 1.1.1.5
external/public-domain/tz/dist/zone.tab up to 1.1.1.15
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.17
external/public-domain/tz/dist/zoneinfo2tdf.pl up to 1.1.1.2
doc/3RDPARTY (apply patch)
Import tzdata2018f from ftp://ftp.iana.org/tz/releases/tzdata2018f.tar.gz
Volgograd moves from +03 to +04 on 2018-10-28.
Fiji ends DST 2019-01-13, not 2019-01-20.
Most of Chile changes DST dates, effective 2019-04-06.
Plus corrections to North Korea's 2018-05-05 and China's April 1988
updates (getting the actual time/date of the transition correct)
Corrections for Macau pre 1992, Japan in late 1940's - early 1950's,
and China (Shanghai) 1940's. The Phillipines get their timezone
name abbreviations back.
-
Import tzdata2018g from ftp://ftp.iana.org/tz/releases/tzdata2018g.tar.gz
Summary of changes in tzdata2018g (2018-10-26 22:22:45 -0700):
Morocco switches to permanent +01 on 2018-10-27.
@
text
@a0 2
# tzdb data for Asia and environs
d9 1
a9 1
# From Paul Eggert (2018-06-19):
d38 1
a38 2
# The following alphabetic abbreviations appear in these tables
# (corrections are welcome):
a46 1
# 8:00 PST PDT* Philippine Standard Time
a51 1
# *I invented the abbreviation PDT; see "Philippines" below.
a283 23
# From Paul Eggert (2018-10-02):
# The following comes from Table 1 of:
# Li Yu. Research on the daylight saving movement in 1940s Shanghai.
# Nanjing Journal of Social Sciences. 2014;(2):144-50.
# http://oversea.cnki.net/kns55/detail.aspx?dbname=CJFD2014&filename=NJSH201402020
# The table lists dates only; I am guessing 00:00 and 24:00 transition times.
# Also, the table lists the planned end of DST in 1949, but the corresponding
# zone line cuts this off on May 28, when the Communists took power.
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Shang 1940 only - Jun 1 0:00 1:00 D
Rule Shang 1940 only - Oct 12 24:00 0 S
Rule Shang 1941 only - Mar 15 0:00 1:00 D
Rule Shang 1941 only - Nov 1 24:00 0 S
Rule Shang 1942 only - Jan 31 0:00 1:00 D
Rule Shang 1945 only - Sep 1 24:00 0 S
Rule Shang 1946 only - May 15 0:00 1:00 D
Rule Shang 1946 only - Sep 30 24:00 0 S
Rule Shang 1947 only - Apr 15 0:00 1:00 D
Rule Shang 1947 only - Oct 31 24:00 0 S
Rule Shang 1948 1949 - May 1 0:00 1:00 D
Rule Shang 1948 1949 - Sep 30 24:00 0 S #plan
d310 12
a321 27
# From P Chan (2018-05-07):
# The start and end time of DST in China [from 1986 on] should be 2:00
# (i.e. 2:00 to 3:00 at the start and 2:00 to 1:00 at the end)....
# Government notices about summer time:
#
# 1986-04-12 http://www.zj.gov.cn/attach/zfgb/198608.pdf p.21-22
# (To establish summer time from 1986. On 4 May, set the clocks ahead one hour
# at 2 am. On 14 September, set the clocks backward one hour at 2 am.)
#
# 1987-02-15 http://www.gov.cn/gongbao/shuju/1987/gwyb198703.pdf p.114
# (Summer time in 1987 to start from 12 April until 13 September)
#
# 1987-09-09 http://www.gov.cn/gongbao/shuju/1987/gwyb198721.pdf p.709
# (From 1988, summer time to start from 2 am of the first Sunday of mid-April
# until 2 am of the first Sunday of mid-September)
#
# 1992-03-03 http://www.gov.cn/gongbao/shuju/1992/gwyb199205.pdf p.152
# (To suspend summer time from 1992)
#
# The first page of People's Daily on 12 April 1988 stating that summer time
# to begin on 17 April.
# http://data.people.com.cn/pic/101p/1988/04/1988041201.jpg
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule PRC 1986 only - May 4 2:00 1:00 D
Rule PRC 1986 1991 - Sep Sun>=11 2:00 0 S
Rule PRC 1987 1991 - Apr Sun>=11 2:00 1:00 D
d343 1
a343 1
# Guo Qing-sheng (National Time-Service Center, CAS, Xi'an 710600, China)
d346 1
a346 2
# (Zhongguo ke ji shi liao, 中国科技史料). 2003;24(1):5-9.
# http://oversea.cnki.net/kcms/detail/detail.aspx?filename=ZGKS200301000&dbname=CJFD2003
d523 1
a523 1
8:00 Shang C%sT 1949 May 28
d752 18
a769 134
#
# From P Chan (2018-05-10):
# * LegisMac
# http://legismac.safp.gov.mo/legismac/descqry/Descqry.jsf?lang=pt
# A database for searching titles of legal documents of Macau in
# Chinese and Portuguese. The term "HORÁRIO DE VERÃO" can be used for
# searching decrees about summer time.
# * Archives of Macao
# http://www.archives.gov.mo/en/bo/
# It contains images of old official gazettes.
# * The Macao Meteorological and Geophysical Bureau have a page listing the
# summer time history. But it is not complete and has some mistakes.
# http://www.smg.gov.mo/smg/geophysics/e_t_Summer%20Time.htm
# Macau adopted GMT+8 on 30 Oct 1904 to follow Hong Kong. Clocks were
# advanced by 25 minutes and 50 seconds. Which means the LMT used was
# +7:34:10. As stated in the "Portaria No. 204" dated 21 October 1904
# and published in the Official Gazette on 29 October 1904.
# http://igallery.icm.gov.mo/Images/Archives/BO/MO_AH_PUB_BO_1904_10/MO_AH_PUB_BO_1904_10_00025_Grey.JPG
#
# Therefore the 1911 decree of Portugal did not change time in Macau.
#
# From LegisMac, here is a list of decrees that changed the time ...
# [Decree Gazette-no. date; titles omitted in this quotation]
# DIL 732 BOCM 51 1941.12.20
# DIL 764 BOCM 9S 1942.04.30
# DIL 781 BOCM 21 1942.10.10
# PT 3434 BOCM 8S 1943.04.17
# PT 3504 BOCM 20 1943.09.25
# PT 3843 BOCM 39 1945.09.29
# PT 3961 BOCM 17 1946.04.27
# PT 4026 BOCM 39 1946.09.28
# PT 4153 BOCM 16 1947.04.10
# PT 4271 BOCM 48 1947.11.29
# PT 4374 BOCM 18 1948.05.01
# PT 4465 BOCM 44 1948.10.30
# PT 4590 BOCM 14 1949.04.02
# PT 4666 BOCM 44 1949.10.29
# PT 4771 BOCM 12 1950.03.25
# PT 4838 BOCM 43 1950.10.28
# PT 4946 BOCM 12 1951.03.24
# PT 5025 BO 43 1951.10.27
# PT 5149 BO 14 1952.04.05
# PT 5251 BO 43 1952.10.25
# PT 5366 BO 13 1953.03.28
# PT 5444 BO 44 1953.10.31
# PT 5540 BO 12 1954.03.20
# PT 5589 BO 44 1954.10.30
# PT 5676 BO 12 1955.03.19
# PT 5739 BO 45 1955.11.05
# PT 5823 BO 11 1956.03.17
# PT 5891 BO 44 1956.11.03
# PT 5981 BO 12 1957.03.23
# PT 6064 BO 43 1957.10.26
# PT 6172 BO 12 1958.03.22
# PT 6243 BO 43 1958.10.25
# PT 6341 BO 12 1959.03.21
# PT 6411 BO 43 1959.10.24
# PT 6514 BO 11 1960.03.12
# PT 6584 BO 44 1960.10.29
# PT 6721 BO 10 1961.03.11
# PT 6815 BO 43 1961.10.28
# PT 6947 BO 10 1962.03.10
# PT 7080 BO 43 1962.10.27
# PT 7218 BO 12 1963.03.23
# PT 7340 BO 43 1963.10.26
# PT 7491 BO 11 1964.03.14
# PT 7664 BO 43 1964.10.24
# PT 7846 BO 15 1965.04.10
# PT 7979 BO 42 1965.10.16
# PT 8146 BO 15 1966.04.09
# PT 8252 BO 41 1966.10.08
# PT 8429 BO 15 1967.04.15
# PT 8540 BO 41 1967.10.14
# PT 8735 BO 15 1968.04.13
# PT 8860 BO 41 1968.10.12
# PT 9035 BO 16 1969.04.19
# PT 9156 BO 42 1969.10.18
# PT 9328 BO 15 1970.04.11
# PT 9418 BO 41 1970.10.10
# PT 9587 BO 14 1971.04.03
# PT 9702 BO 41 1971.10.09
# PT 38-A/72 BO 14 1972.04.01
# PT 126-A/72 BO 41 1972.10.07
# PT 61/73 BO 14 1973.04.07
# PT 182/73 BO 40 1973.10.06
# PT 282/73 BO 51 1973.12.22
# PT 177/74 BO 41 1974.10.12
# PT 51/75 BO 15 1975.04.12
# PT 173/75 BO 41 1975.10.11
# PT 67/76/M BO 14 1976.04.03
# PT 169/76/M BO 41 1976.10.09
# PT 78/79/M BO 19 1979.05.12
# PT 166/79/M BO 42 1979.10.20
# Note that DIL 732 does not belong to "HORÁRIO DE VERÃO" according to
# LegisMac.... Note that between 1942 and 1945, the time switched
# between GMT+9 and GMT+10. Also in 1965 and 1965 the DST ended at 2:30am.
# From Paul Eggert (2018-05-10):
# The 1904 decree says that Macau changed from the meridian of
# Fortaleza do Monte, presumably the basis for the 7:34:10 for LMT.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Macau 1942 1943 - Apr 30 23:00 1:00 -
Rule Macau 1942 only - Nov 17 23:00 0 -
Rule Macau 1943 only - Sep 30 23:00 0 S
Rule Macau 1946 only - Apr 30 23:00s 1:00 D
Rule Macau 1946 only - Sep 30 23:00s 0 S
Rule Macau 1947 only - Apr 19 23:00s 1:00 D
Rule Macau 1947 only - Nov 30 23:00s 0 S
Rule Macau 1948 only - May 2 23:00s 1:00 D
Rule Macau 1948 only - Oct 31 23:00s 0 S
Rule Macau 1949 1950 - Apr Sat>=1 23:00s 1:00 D
Rule Macau 1949 1950 - Oct lastSat 23:00s 0 S
Rule Macau 1951 only - Mar 31 23:00s 1:00 D
Rule Macau 1951 only - Oct 28 23:00s 0 S
Rule Macau 1952 1953 - Apr Sat>=1 23:00s 1:00 D
Rule Macau 1952 only - Nov 1 23:00s 0 S
Rule Macau 1953 1954 - Oct lastSat 23:00s 0 S
Rule Macau 1954 1956 - Mar Sat>=17 23:00s 1:00 D
Rule Macau 1955 only - Nov 5 23:00s 0 S
Rule Macau 1956 1964 - Nov Sun>=1 03:30 0 S
Rule Macau 1957 1964 - Mar Sun>=18 03:30 1:00 D
Rule Macau 1965 1973 - Apr Sun>=16 03:30 1:00 D
Rule Macau 1965 1966 - Oct Sun>=16 02:30 0 S
Rule Macau 1967 1976 - Oct Sun>=16 03:30 0 S
Rule Macau 1973 only - Dec 30 03:30 1:00 D
Rule Macau 1975 1976 - Apr Sun>=16 03:30 1:00 D
Rule Macau 1979 only - May 13 03:30 1:00 D
Rule Macau 1979 only - Oct Sun>=16 03:30 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Macau 7:34:10 - LMT 1904 Oct 30
8:00 - CST 1941 Dec 21 23:00
9:00 Macau +09/+10 1945 Sep 30 24:00
a1473 20
# From Phake Nick (2018-09-27):
# [T]he webpage authored by National Astronomical Observatory of Japan
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EF.html
# ... mentioned that using Showa 23 (year 1948) as example, 13pm of September
# 11 in summer time will equal to 0am of September 12 in standard time.
# It cited a document issued by the Liaison Office which briefly existed
# during the postwar period of Japan, where the detail on implementation
# of the summer time is described in the document.
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EFB2C6BBFEB9EFA4CEBCC2BBDCA4CBA4C4A4A4A4C6.pdf
# The text in the document do instruct a fall back to occur at
# September 11, 13pm in summer time, while ordinary citizens can
# change the clock before they sleep.
#
# From Paul Eggert (2018-09-27):
# This instruction is equivalent to "Sat>=8 25:00", so use that. zic treats
# it like "Sun>=9 01:00", which is not quite the same but is the best we can
# do in any POSIX or C platform. The "25:00" assumes zic from 2007 or later,
# which should be safe now.
d1476 1
a1476 1
Rule Japan 1948 1951 - Sep Sat>=8 25:00 0 S
d1858 1
a1858 1
# so include timestamps before 1963.
a1985 17
# From Kang Seonghoon (2018-04-29):
# North Korea will revert its time zone from UTC+8:30 (PYT; Pyongyang
# Time) back to UTC+9 (KST; Korea Standard Time).
#
# From Seo Sanghyeon (2018-04-30):
# Rodong Sinmun 2018-04-30 announced Pyongyang Time transition plan.
# https://www.nknews.org/kcna/wp-content/uploads/sites/5/2018/04/rodong-2018-04-30.pdf
# ... the transition date is 2018-05-05 ... Citation should be Decree
# No. 2232 of April 30, 2018, of the Presidium of the Supreme People's
# Assembly, as published in Rodong Sinmun.
# From Tim Parenti (2018-04-29):
# It appears to be the front page story at the top in the right-most column.
#
# From Paul Eggert (2018-05-04):
# The BBC reported that the transition was from 23:30 to 24:00 today.
# https://www.bbc.com/news/world-asia-44010705
d1997 1
a1997 2
8:30 - KST 2018 May 4 23:30
9:00 - KST
d2661 1
a2661 1
# the official website, though the decree did not specify the exact
d2746 7
a2752 23
# From Paul Goyette (2018-06-15):
# In the Philippines, there is a national law, Republic Act No. 10535
# which declares the official time here as "Philippine Standard Time".
# The act [1] even specifies use of PST as the abbreviation, although
# the FAQ provided by PAGASA [2] uses the "acronym PhST to distinguish
# it from the Pacific Standard Time (PST)."
# [1] http://www.officialgazette.gov.ph/2013/05/15/republic-act-no-10535/
# [2] https://www1.pagasa.dost.gov.ph/index.php/astronomy/philippine-standard-time#republic-act-10535
#
# From Paul Eggert (2018-06-19):
# I surveyed recent news reports, and my impression is that "PST" is
# more popular among reliable English-language news sources. This is
# not just a measure of Google hit counts: it's also the sizes and
# influence of the sources. There is no current abbreviation for DST,
# so use "PDT", the usual American style.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Phil 1936 only - Nov 1 0:00 1:00 D
Rule Phil 1937 only - Feb 1 0:00 0 S
Rule Phil 1954 only - Apr 12 0:00 1:00 D
Rule Phil 1954 only - Jul 1 0:00 0 S
Rule Phil 1978 only - Mar 22 0:00 1:00 D
Rule Phil 1978 only - Sep 21 0:00 0 S
d2756 3
a2758 3
8:00 Phil P%sT 1942 May
9:00 - JST 1944 Nov
8:00 Phil P%sT
d2769 1
a2769 1
# From Paul Eggert (2018-08-29):
d2771 1
a2771 1
# standardized until 1968 or so; we don't know exactly when, and possibly it
a2777 19
# Timekeeping differed depending on who you were and which part of Saudi
# Arabia you were in. In 1969, Elias Antar wrote that although a common
# practice had been to set one's watch to 12:00 (i.e., midnight) at sunset -
# which meant that the time on one side of a mountain could differ greatly from
# the time on the other side - many foreigners set their watches to 6pm
# instead, while airlines instead used UTC +03 (except in Dhahran, where they
# used UTC +04), Aramco used UTC +03 with DST, and the Trans-Arabian Pipe Line
# Company used Aramco time in eastern Saudi Arabia and airline time in western.
# (The American Military Aid Advisory Group used plain UTC.) Antar writes,
# "A man named Higgins, so the story goes, used to run a local power
# station. One day, the whole thing became too much for Higgins and he
# assembled his staff and laid down the law. 'I've had enough of this,' he
# shrieked. 'It is now 12 o'clock Higgins Time, and from now on this station is
# going to run on Higgins Time.' And so, until last year, it did." See:
# Antar E. Dinner at When? Saudi Aramco World, 1969 March/April. 2-3.
# http://archive.aramcoworld.com/issue/196902/dinner.at.when.htm
# newspapers.com says a similar story about Higgins was published in the Port
# Angeles (WA) Evening News, 1965-03-10, page 5, but I lack access to the text.
#
d2787 1
a2787 2
# the country. Presumably this is documenting airline time. Ignore this,
# as it's before our 1970 cutoff.
@
1.1.1.1.4.7.2.4
log
@Pull up the following, requested by kre in ticket #1670:
external/public-domain/tz/dist/Makefile up to 1.1.1.23
external/public-domain/tz/dist/NEWS up to 1.1.1.26
external/public-domain/tz/dist/TZDATA_VERSION up to 1.16
external/public-domain/tz/dist/africa up to 1.1.1.19
external/public-domain/tz/dist/asia up to 1.1.1.22
external/public-domain/tz/dist/australasia up to 1.1.1.17
external/public-domain/tz/dist/leapseconds up to 1.1.1.12
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.8
external/public-domain/tz/dist/northamerica up to 1.1.1.22
external/public-domain/tz/dist/theory.html up to 1.1.1.7
external/public-domain/tz/dist/version up to 1.1.1.13
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.4
external/public-domain/tz/dist/zone.tab up to 1.1.1.16
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.18
distrib/sets/lists/base/mi (patch)
doc/3RDPARTY (patch)
Import tzdata2018h from ftp://ftp.iana.org/tz/releases/tzdata2018h.tar.gz
Summary of changes in tzdata2018h (2018-12-23 17:59:32 -0800):
Qyzylorda (aka Kyzylorda) oblast in Kazakhstan moved from +06 to
+05 on 2018-12-21. This is a zone split as Qostanay (aka
Kostanay) did not switch, so create a zone Asia/Qostanay.
Metlakatla, Alaska observes PST this winter only.
Add predictions for Iran from 2038 through 2090.
Changes to some old timestamps for Nauru (1979) Guam (1959-77),
Hong Kong (1904, 1941, 1945, 1952) (others in Pacific during WWII)
---
Merge tzdata2018h
---
Update to tzdata2018h (new zone Asia/Qostanay)
---
Import tzdata2018i from ftp://ftp.iana.org/tz/releases/tzdata2018i.tar.gz
Summary of changes in tzdata2018i (2018-12-30 11:05:43 -0800):
Due to a change in government, Sao Tome and Principe switches back
from +01 to +00 on 2019-01-01 at 02:00.
---
Merge tzdata2018i
---
Update to tzdata2018i
@
text
@d589 1
a589 71
# From Phake Nick (2018-10-27):
# According to Singaporean newspaper
# http://eresources.nlb.gov.sg/newspapers/Digitised/Article/singfreepresswk19041102-1.2.37
# the day that Hong Kong start using GMT+8 should be Oct 30, 1904.
#
# From Paul Eggert (2018-11-17):
# Hong Kong had a time ball near the Marine Police Station, Tsim Sha Tsui.
# "The ball was raised manually each day and dropped at exactly 1pm
# (except on Sundays and Government holidays)."
# Dyson AD. From Time Ball to Atomic Clock. Hong Kong Government. 1983.
#
# "From 1904 October 30 the time-ball at Hong Kong has been dropped by order
# of the Governor of the Colony at 17h 0m 0s G.M.T., which is 23m 18s.14 in
# advance of 1h 0m 0s of Hong Kong mean time."
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc.
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382
#
# From Joseph Myers (2018-11-18):
# An astronomer before 1925 referring to GMT would have been using the old
# astronomical convention where the day started at noon, not midnight.
#
# From Steve Allen (2018-11-17):
# Meteorological Observations made at the Hongkong Observatory in the year 1904
# page 4
# ... the log of drop times in Table II shows that on Sunday 1904-10-30 the
# ball was dropped. So that looks like a special case drop for the sake
# of broadcasting the new local time.
#
# From Phake Nick (2018-11-18):
# According to The Hong Kong Weekly Press, 1904-10-29, p.324, the
# governor of Hong Kong at the time stated that "We are further desired to
# make it known that the change will be effected by firing the gun and by the
# dropping of the Ball at 23min. 18sec. before one."
# From Paul Eggert (2018-11-18):
# See for this; unfortunately Flash is required.
# From Phake Nick (2018-10-26):
# I went to check microfilm records stored at Hong Kong Public Library....
# on September 30 1941, according to Ta Kung Pao (Hong Kong edition), it was
# stated that fallback would occur on the next day (the 1st)'s "03:00 am (Hong
# Kong Time 04:00 am)" and the clock will fall back for a half hour. (03:00
# probably refer to the time commonly used in mainland China at the time given
# the paper's background) ... the sunrise/sunset time given by South China
# Morning Post for October 1st was indeed moved by half an hour compares to
# before. After that, in December, the battle to capture Hong Kong started and
# the library doesn't seems to have any record stored about press during that
# period of time. Some media resumed publication soon after that within the
# same month, but there were not much information about time there. Later they
# started including a radio program guide when they restored radio service,
# explicitly mentioning it use Tokyo standard time, and later added a note
# saying it's half an hour ahead of the old Hong Kong standard time, and it
# also seems to indicate that Hong Kong was not using GMT+8 when it was
# captured by Japan.
#
# Image of related sections on newspaper:
# * 1941-09-30, Ta Kung Pao (Hong Kong), "Winter Time start tomorrow".
# https://i.imgur.com/6waY51Z.jpg (Chinese)
# * 1941-09-29, South China Morning Post, Information on sunrise/sunset
# time and other things for September 30 and October 1.
# https://i.imgur.com/kCiUR78.jpg
# * 1942-02-05. The Hong Kong News, Radio Program Guide.
# https://i.imgur.com/eVvDMzS.jpg
# * 1941-06-14. Hong Kong Daily Press, Daylight Saving from 3am Tomorrow.
# https://i.imgur.com/05KkvtC.png
# * 1941-09-30, Hong Kong Daily Press, Winter Time Warning.
# https://i.imgur.com/dge4kFJ.png
# Also, the Liberation day of Hong Kong after WWII which British rule
# over the territory resumed was August 30, 1945, which I think should
# be the termination date for the use of JST in the territory....
# From Paul Eggert (2018-11-17):
d591 2
a592 2
# https://www.hko.gov.hk/gts/time/Summertime.htm
# as of 2014-06-19:
d594 1
a594 1
# 1941 15 Jun to 30 Sep
d605 1
a605 1
# 1952 6 Apr to 2 Nov
d634 6
a639 9
# The page does not give times of day for transitions,
# or dates for the 1942 and 1945 transitions.
# The Japanese occupation of Hong Kong began 1941-12-25.
# The Japanese surrender of Hong Kong was signed 1945-09-16; see:
# Heaver S. The days after the Pacific war ended: unsettling times
# in Hong Kong. Post Magazine. 2016-06-13.
# https://www.scmp.com/magazines/post-magazine/article/1852990/days-after-pacific-war-ended-unsettling-times-hong-kong
# For lack of anything better, use start of those days as the
# transition times.
d642 2
d650 1
a650 1
Rule HK 1952 1953 - Nov Sun>=1 3:30 0 -
d652 1
d662 3
a664 5
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30 0:36:42
8:00 - HKT 1941 Jun 15 3:30
8:00 1:00 HKST 1941 Oct 1 4:00
8:30 - HKT 1941 Dec 25
9:00 - JST 1945 Sep 16
a1059 10
# British astronomer Henry Park Hollis disliked India Standard Time's offset:
# "A new time system has been proposed for India, Further India, and Burmah.
# The scheme suggested is that the times of the meridians 5½ and 6½ hours
# east of Greenwich should be adopted in these territories. No reason is
# given why hourly meridians five hours and six hours east should not be
# chosen; a plan which would bring the time of India into harmony with
# that of almost the whole of the civilised world."
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc.
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382
d1230 1
a1230 1
# From Paul Eggert (2018-11-30):
d1232 4
a1235 57
# I used the following code in GNU Emacs 26.1 to generate the "Rule Iran"
# lines from 2008 through 2087. Emacs 26.1 uses Ed Reingold's
# cal-persia implementation of Birashk's approximation, which in the
# 2008-2087 range disagrees with the the astronomical Persian calendar
# for Persian years 1404 (Gregorian 2025) and 1437 (Gregorian 2058),
# so the following code special-case those years. See Table 15.1, page 264, of:
# Edward M. Reingold and Nachum Dershowitz, Calendrical Calculations:
# The Ultimate Edition, Cambridge University Press (2018).
# https://www.cambridge.org/fr/academic/subjects/computer-science/computing-general-interest/calendrical-calculations-ultimate-edition-4th-edition
# Page 258, footnote 2, of this book says there is some dispute over what will
# happen in 2091 (and some other years after that), so this code
# stops in 2087, as 2088 and 2089 agree with the "max" rule below.
# (cl-loop
# initially (require 'cal-persia)
# with first-persian-year = 1387
# with last-persian-year = 1466
# ;; Exceptional years in the above range,
# ;; from Reingold & Dershowitz Table 15.1, page 264:
# with exceptional-persian-years = '(1404 1437)
# with range-start = nil
# for persian-year from first-persian-year to last-persian-year
# do
# (let*
# ((exceptional-year-offset
# (if (member persian-year exceptional-persian-years) 1 0))
# (beg-dst-absolute
# (+ (calendar-persian-to-absolute (list 1 1 persian-year))
# exceptional-year-offset))
# (end-dst-absolute
# (+ (calendar-persian-to-absolute (list 6 30 persian-year))
# exceptional-year-offset))
# (next-year-beg-dst-absolute
# (+ (calendar-persian-to-absolute (list 1 1 (1+ persian-year)))
# (if (member (1+ persian-year) exceptional-persian-years) 1 0)))
# (beg-dst (calendar-gregorian-from-absolute beg-dst-absolute))
# (end-dst (calendar-gregorian-from-absolute end-dst-absolute))
# (next-year-beg-dst (calendar-gregorian-from-absolute
# next-year-beg-dst-absolute))
# (year (calendar-extract-year beg-dst))
# (range-end (if range-start year "only")))
# (setq range-start (or range-start year))
# (when (or (/= (calendar-extract-day beg-dst)
# (calendar-extract-day next-year-beg-dst))
# (= persian-year last-persian-year))
# (insert
# (format
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t1:00\t-\n"
# range-start range-end
# (calendar-month-name (calendar-extract-month beg-dst) t)
# (calendar-extract-day beg-dst)))
# (insert
# (format
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t0\t-\n"
# range-start range-end
# (calendar-month-name (calendar-extract-month end-dst) t)
# (calendar-extract-day end-dst)))
# (setq range-start nil))))
d1270 51
a1320 103
Rule Iran 1978 1980 - Mar 20 24:00 1:00 -
Rule Iran 1978 only - Oct 20 24:00 0 -
Rule Iran 1979 only - Sep 18 24:00 0 -
Rule Iran 1980 only - Sep 22 24:00 0 -
Rule Iran 1991 only - May 2 24:00 1:00 -
Rule Iran 1992 1995 - Mar 21 24:00 1:00 -
Rule Iran 1991 1995 - Sep 21 24:00 0 -
Rule Iran 1996 only - Mar 20 24:00 1:00 -
Rule Iran 1996 only - Sep 20 24:00 0 -
Rule Iran 1997 1999 - Mar 21 24:00 1:00 -
Rule Iran 1997 1999 - Sep 21 24:00 0 -
Rule Iran 2000 only - Mar 20 24:00 1:00 -
Rule Iran 2000 only - Sep 20 24:00 0 -
Rule Iran 2001 2003 - Mar 21 24:00 1:00 -
Rule Iran 2001 2003 - Sep 21 24:00 0 -
Rule Iran 2004 only - Mar 20 24:00 1:00 -
Rule Iran 2004 only - Sep 20 24:00 0 -
Rule Iran 2005 only - Mar 21 24:00 1:00 -
Rule Iran 2005 only - Sep 21 24:00 0 -
Rule Iran 2008 only - Mar 20 24:00 1:00 -
Rule Iran 2008 only - Sep 20 24:00 0 -
Rule Iran 2009 2011 - Mar 21 24:00 1:00 -
Rule Iran 2009 2011 - Sep 21 24:00 0 -
Rule Iran 2012 only - Mar 20 24:00 1:00 -
Rule Iran 2012 only - Sep 20 24:00 0 -
Rule Iran 2013 2015 - Mar 21 24:00 1:00 -
Rule Iran 2013 2015 - Sep 21 24:00 0 -
Rule Iran 2016 only - Mar 20 24:00 1:00 -
Rule Iran 2016 only - Sep 20 24:00 0 -
Rule Iran 2017 2019 - Mar 21 24:00 1:00 -
Rule Iran 2017 2019 - Sep 21 24:00 0 -
Rule Iran 2020 only - Mar 20 24:00 1:00 -
Rule Iran 2020 only - Sep 20 24:00 0 -
Rule Iran 2021 2023 - Mar 21 24:00 1:00 -
Rule Iran 2021 2023 - Sep 21 24:00 0 -
Rule Iran 2024 only - Mar 20 24:00 1:00 -
Rule Iran 2024 only - Sep 20 24:00 0 -
Rule Iran 2025 2027 - Mar 21 24:00 1:00 -
Rule Iran 2025 2027 - Sep 21 24:00 0 -
Rule Iran 2028 2029 - Mar 20 24:00 1:00 -
Rule Iran 2028 2029 - Sep 20 24:00 0 -
Rule Iran 2030 2031 - Mar 21 24:00 1:00 -
Rule Iran 2030 2031 - Sep 21 24:00 0 -
Rule Iran 2032 2033 - Mar 20 24:00 1:00 -
Rule Iran 2032 2033 - Sep 20 24:00 0 -
Rule Iran 2034 2035 - Mar 21 24:00 1:00 -
Rule Iran 2034 2035 - Sep 21 24:00 0 -
Rule Iran 2036 2037 - Mar 20 24:00 1:00 -
Rule Iran 2036 2037 - Sep 20 24:00 0 -
Rule Iran 2038 2039 - Mar 21 24:00 1:00 -
Rule Iran 2038 2039 - Sep 21 24:00 0 -
Rule Iran 2040 2041 - Mar 20 24:00 1:00 -
Rule Iran 2040 2041 - Sep 20 24:00 0 -
Rule Iran 2042 2043 - Mar 21 24:00 1:00 -
Rule Iran 2042 2043 - Sep 21 24:00 0 -
Rule Iran 2044 2045 - Mar 20 24:00 1:00 -
Rule Iran 2044 2045 - Sep 20 24:00 0 -
Rule Iran 2046 2047 - Mar 21 24:00 1:00 -
Rule Iran 2046 2047 - Sep 21 24:00 0 -
Rule Iran 2048 2049 - Mar 20 24:00 1:00 -
Rule Iran 2048 2049 - Sep 20 24:00 0 -
Rule Iran 2050 2051 - Mar 21 24:00 1:00 -
Rule Iran 2050 2051 - Sep 21 24:00 0 -
Rule Iran 2052 2053 - Mar 20 24:00 1:00 -
Rule Iran 2052 2053 - Sep 20 24:00 0 -
Rule Iran 2054 2055 - Mar 21 24:00 1:00 -
Rule Iran 2054 2055 - Sep 21 24:00 0 -
Rule Iran 2056 2057 - Mar 20 24:00 1:00 -
Rule Iran 2056 2057 - Sep 20 24:00 0 -
Rule Iran 2058 2059 - Mar 21 24:00 1:00 -
Rule Iran 2058 2059 - Sep 21 24:00 0 -
Rule Iran 2060 2062 - Mar 20 24:00 1:00 -
Rule Iran 2060 2062 - Sep 20 24:00 0 -
Rule Iran 2063 only - Mar 21 24:00 1:00 -
Rule Iran 2063 only - Sep 21 24:00 0 -
Rule Iran 2064 2066 - Mar 20 24:00 1:00 -
Rule Iran 2064 2066 - Sep 20 24:00 0 -
Rule Iran 2067 only - Mar 21 24:00 1:00 -
Rule Iran 2067 only - Sep 21 24:00 0 -
Rule Iran 2068 2070 - Mar 20 24:00 1:00 -
Rule Iran 2068 2070 - Sep 20 24:00 0 -
Rule Iran 2071 only - Mar 21 24:00 1:00 -
Rule Iran 2071 only - Sep 21 24:00 0 -
Rule Iran 2072 2074 - Mar 20 24:00 1:00 -
Rule Iran 2072 2074 - Sep 20 24:00 0 -
Rule Iran 2075 only - Mar 21 24:00 1:00 -
Rule Iran 2075 only - Sep 21 24:00 0 -
Rule Iran 2076 2078 - Mar 20 24:00 1:00 -
Rule Iran 2076 2078 - Sep 20 24:00 0 -
Rule Iran 2079 only - Mar 21 24:00 1:00 -
Rule Iran 2079 only - Sep 21 24:00 0 -
Rule Iran 2080 2082 - Mar 20 24:00 1:00 -
Rule Iran 2080 2082 - Sep 20 24:00 0 -
Rule Iran 2083 only - Mar 21 24:00 1:00 -
Rule Iran 2083 only - Sep 21 24:00 0 -
Rule Iran 2084 2086 - Mar 20 24:00 1:00 -
Rule Iran 2084 2086 - Sep 20 24:00 0 -
Rule Iran 2087 only - Mar 21 24:00 1:00 -
Rule Iran 2087 only - Sep 21 24:00 0 -
#
# The following rules are approximations starting in the year 2088.
# These are the best post-2088 approximations available, given the
# restrictions of a single rule using ordinary Gregorian dates.
d1323 2
a1324 2
Rule Iran 2088 max - Mar 20 24:00 1:00 -
Rule Iran 2088 max - Sep 20 24:00 0 -
d1694 1
a1694 3
# Since 1938, all Japanese possessions have been like Asia/Tokyo,
# except that Truk (Chuuk), Ponape (Pohnpei), and Jaluit (Kosrae) did not
# switch from +10 to +09 until 1941-04-01; see the 'australasia' file.
d1984 2
a1985 4
# From Alexander Konzurovski (2018-12-20):
# Qyzyolrda Region (Asia/Qyzylorda) is changing its time zone from
# UTC+6 to UTC+5 effective December 21st, 2018. The legal document is
# located here: http://adilet.zan.kz/rus/docs/P1800000817 (russian language).
d1999 2
d2011 14
a2024 2
6:00 - +06 2018 Dec 21 0:00
5:00 - +05
a2025 13
# Qostanay (aka Kostanay, Kustanay) (KZ-KUS)
# The 1991/2 rules are unclear partly because of the 1997 Turgai
# reorganization.
Zone Asia/Qostanay 4:14:28 - LMT 1924 May 2
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
6:00 - +06
a2118 22
# From Phake Nick (2018-10-27):
# 1. According to official announcement from Korean government, the DST end
# date in South Korea should be
# 1955-09-08 without specifying time
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027977557
# 1956-09-29 without specifying time
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027978341
# 1957-09-21 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027979690#3
# 1958-09-20 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027981189
# 1959-09-19 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027982974#2
# 1960-09-17 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0028044104
# ...
# 2.... https://namu.wiki/w/대한민국%20표준시 ... [says]
# when Korea was using GMT+8:30 as standard time, the international
# aviation/marine/meteorological industry in the country refused to
# follow and continued to use GMT+9:00 for interoperability.
d2120 14
a2133 14
Rule ROK 1948 only - Jun 1 0:00 1:00 D
Rule ROK 1948 only - Sep 12 24:00 0 S
Rule ROK 1949 only - Apr 3 0:00 1:00 D
Rule ROK 1949 1951 - Sep Sat>=7 24:00 0 S
Rule ROK 1950 only - Apr 1 0:00 1:00 D
Rule ROK 1951 only - May 6 0:00 1:00 D
Rule ROK 1955 only - May 5 0:00 1:00 D
Rule ROK 1955 only - Sep 8 24:00 0 S
Rule ROK 1956 only - May 20 0:00 1:00 D
Rule ROK 1956 only - Sep 29 24:00 0 S
Rule ROK 1957 1960 - May Sun>=1 0:00 1:00 D
Rule ROK 1957 1960 - Sep Sat>=17 24:00 0 S
Rule ROK 1987 1988 - May Sun>=8 2:00 1:00 D
Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S
a2922 5
# From Paul Eggert (2018-11-18):
# The Spanish initially used American (west-of-Greenwich) time.
# It is unknown what time Manila kept when the British occupied it from
# 1762-10-06 through 1764-04; for now assume it kept American time.
d3008 2
a3009 2
# Also see: Antar EN. Arabian flying is confusing.
# Port Angeles (WA) Evening News. 1965-03-10. page 3.
@
1.1.1.1.4.8
log
@Pull up following revision(s) (requested by kre in ticket #1519):
distrib/sets/lists/base/mi: 1.1164
doc/3RDPARTY: 1.2326 via patch
external/public-domain/tz/dist/CONTRIBUTING: up to 1.1.1.4
external/public-domain/tz/dist/LICENSE: up to 1.1.1.3
external/public-domain/tz/dist/Makefile: up to 1.1.1.18
external/public-domain/tz/dist/NEWS: up to 1.1.1.19
external/public-domain/tz/dist/TZDATA_VERSION: up to 1.9
external/public-domain/tz/dist/Theory: delete
external/public-domain/tz/dist/africa: up to 1.1.1.12
external/public-domain/tz/dist/antarctica: up to 1.1.1.9
external/public-domain/tz/dist/asia: up to 1.1.1.17
external/public-domain/tz/dist/australasia: up to 1.1.1.12
external/public-domain/tz/dist/backward: up to 1.1.1.8
external/public-domain/tz/dist/backzone: up to 1.1.1.12
external/public-domain/tz/dist/calendars: up to 1.1.1.1
external/public-domain/tz/dist/checklinks.awk: up to 1.1.1.3
external/public-domain/tz/dist/europe: up to 1.1.1.18
external/public-domain/tz/dist/leap-seconds.list: up to 1.1.1.8
external/public-domain/tz/dist/leapseconds: up to 1.1.1.9
external/public-domain/tz/dist/leapseconds.awk: up to 1.1.1.6
external/public-domain/tz/dist/northamerica: up to 1.1.1.17
external/public-domain/tz/dist/southamerica: up to 1.1.1.12
external/public-domain/tz/dist/theory.html: up to 1.1.1.1
external/public-domain/tz/dist/version: up to 1.1.1.6
external/public-domain/tz/dist/zishrink.awk: up to 1.1.1.1
external/public-domain/tz/dist/zone.tab: up to 1.1.1.12
external/public-domain/tz/dist/zone1970.tab: up to 1.1.1.14
Update tzdata to 2017c.
@
text
@d29 1
a29 1
# https://www.jstor.org/stable/1774359
d78 2
a79 2
Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 S
Rule RussiaAsia 1996 2010 - Oct lastSun 2:00s 0 -
a111 3
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 S
Rule Armenia 2011 only - Oct lastSun 2:00s 0 -
d118 1
a118 2
4:00 RussiaAsia +04/+05 2011
4:00 Armenia +04/+05
d130 1
a130 1
# https://www.azernews.az/azerbaijan/94137.html
d171 1
a171 1
# https://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601
d175 1
a175 1
# https://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html
a260 6
# From Paul Eggert (2017-04-20):
# Page 27 of Reed & Low (cited for Asia/Kolkata) says "Rangoon local time is
# used upon the railways and telegraphs of Burma, and is 6h. 24m. 47s. ahead
# of Greenwich." This refers to the period before Burma's transition to +0630,
# a transition for which Shanks is the only source.
d262 2
a263 2
Zone Asia/Yangon 6:24:47 - LMT 1880 # or Rangoon
6:24:47 - RMT 1920 # Rangoon local time
d320 1
a320 1
# https://www.astro.com/atlas site [with provinces and county
d472 1
a472 1
# https://content.time.com/time/magazine/article/0,9171,960684,00.html
d629 1
a629 1
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
d642 1
a642 1
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
a777 6
# From Paul Eggert (2017-10-18):
# Northern Cyprus will reinstate winter time on October 29, thus
# staying in sync with the rest of Cyprus. See: Anastasiou A.
# Cyprus to remain united in time. Cyprus Mail 2017-10-17.
# https://cyprus-mail.com/2017/10/17/cyprus-remain-united-time/
d795 1
a795 2
3:00 - +03 2017 Oct 29 1:00u
2:00 EUAsia EE%sT
d855 1
a855 1
# (1999-12-26/31):
d883 1
a883 1
# https://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/
d890 4
a893 45
# From Paul Eggert (2017-04-20):
# Good luck trying to nail down old timekeeping records in India.
# "... in the nineteenth century ... Madras Observatory took its magnetic
# measurements on Göttingen time, its meteorological measurements on Madras
# (local) time, dropped its time ball on Greenwich (ocean navigator's) time,
# and distributed civil (local time)." -- Bartky IR. Selling the true time:
# 19th-century timekeeping in america. Stanford U Press (2000), 247 note 19.
# "A more potent cause of resistance to the general adoption of the present
# standard time lies in the fact that it is Madras time. The citizen of
# Bombay, proud of being 'primus in Indis' and of Calcutta, equally proud of
# his city being the Capital of India, and - for a part of the year - the Seat
# of the Supreme Government, alike look down on Madras, and refuse to change
# the time they are using, for that of what they regard as a benighted
# Presidency; while Madras, having for long given the standard time to the
# rest of India, would resist the adoption of any other Indian standard in its
# place." -- Oldham RD. On Time in India: a suggestion for its improvement.
# Proceedings of the Asiatic Society of Bengal (April 1899), 49-55.
#
# "In 1870 ... Madras time - 'now used by the telegraph and regulated from the
# only government observatory' - was suggested as a standard railway time,
# first to be adopted on the Great Indian Peninsular Railway (GIPR)....
# Calcutta, Bombay, and Karachi, were to be allowed to continue with their
# local time for civil purposes." - Prasad R. Tracks of Change: Railways and
# Everyday Life in Colonial India. Cambridge University Press (2016), 145.
#
# Reed S, Low F. The Indian Year Book 1936-37. Bennett, Coleman, pp 27-8.
# https://archive.org/details/in.ernet.dli.2015.282212
# This lists +052110 as Madras local time used in railways, and says that on
# 1906-01-01 railways and telegraphs in India switched to +0530. Some
# municipalities retained their former time, and the time in Calcutta
# continued to depend on whether you were at the railway station or at
# government offices. Government time was at +055320 (according to Shanks) or
# at +0554 (according to the Indian Year Book). Railway time is more
# appropriate for our purposes, as it was better documented, it is what we do
# elsewhere (e.g., Europe/London before 1880), and after 1906 it was
# consistent in the region now identified by Asia/Kolkata. So, use railway
# time for 1870-1941. Shanks is our only (and dubious) source for the
# 1941-1945 data.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kolkata 5:53:28 - LMT 1854 Jun 28 # Kolkata
5:53:20 - HMT 1870 # Howrah Mean Time?
5:21:10 - MMT 1906 Jan 1 # Madras local time
5:30 - IST 1941 Oct
5:30 1:00 +0630 1942 May 15
d897 1
a897 1
# Since 1970 the following are like Asia/Kolkata:
d1039 1
a1039 1
# https://uk.reuters.com/article/oilRpt/idUKBLA65048420070916
d1138 1
a1138 1
# https://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
d1446 1
a1446 1
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
d1451 1
a1451 1
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
d1513 1
a1513 1
# https://www.timeanddate.com/news/time/jordan-reverses-dst-decision.html
d1871 1
a1871 1
# https://mm.icann.org/pipermail/tz/2014-October/021830.html
d1873 1
a1873 1
# https://ko.wikipedia.org/wiki/한국_표준시
d2095 1
a2095 1
# https://www.timeanddate.com/worldclock/city.html?n=1026
d2225 1
a2225 1
# http://www.worldtimezone.com/dst_news/dst_news_pakistan01.html
d2291 1
a2291 1
# https://www.timeanddate.com/news/time/pakistan-ends-dst09.html
d2473 1
a2473 1
# https://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html
d2511 1
a2511 1
# https://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html
d2521 1
a2521 1
# https://www.timeanddate.com/news/time/palestine-dst-2011.html
d2531 1
a2531 1
# https://www.jpost.com/MiddleEast/Article.aspx?id=235650
d2552 1
a2552 1
# https://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html
d2572 1
a2572 1
# and https://www.raya.ps/ar/news/890705.html say Palestine areas will
d2576 1
a2576 1
# https://www.timeanddate.com/time/change/west-bank/ramallah?year=2014
d2600 2
a2601 2
# https://www.timeanddate.com/time/change/gaza-strip/gaza
# https://www.timeanddate.com/time/change/west-bank/hebron
d2664 1
a2664 1
# https://www.staff.science.uu.nl/~gent0113/idl/idl_philippines.htm
d2928 1
a2928 1
# https://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html
d2955 1
a2955 1
# https://www.timeanddate.com/news/time/syria-dst-2012.html
d3038 1
a3038 1
# https://mm.icann.org/pipermail/tz/2014-October/021654.html
@
1.1.1.1.4.9
log
@Pull up the following revisions, requested by kre in tickt #1589:
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.1
external/public-domain/tz/dist/CONTRIBUTING up to 1.1.1.5
external/public-domain/tz/dist/Makefile up to 1.1.1.20
external/public-domain/tz/dist/NEWS up to 1.1.1.21
external/public-domain/tz/dist/README up to 1.1.1.6
external/public-domain/tz/dist/TZDATA_VERSION up to 1.11
external/public-domain/tz/dist/africa up to 1.1.1.14
external/public-domain/tz/dist/antarctica up to 1.1.1.10
external/public-domain/tz/dist/asia up to 1.1.1.19
external/public-domain/tz/dist/australasia up to 1.1.1.14
external/public-domain/tz/dist/backzone up to 1.1.1.14
external/public-domain/tz/dist/checktab.awk up to 1.1.1.9
external/public-domain/tz/dist/europe up to 1.1.1.20
external/public-domain/tz/dist/leap-seconds.list up to 1.1.1.9
external/public-domain/tz/dist/leapseconds up to 1.1.1.10
external/public-domain/tz/dist/northamerica up to 1.1.1.19
external/public-domain/tz/dist/southamerica up to 1.1.1.14
external/public-domain/tz/dist/theory.html up to 1.1.1.3
external/public-domain/tz/dist/version up to 1.1.1.8
external/public-domain/tz/dist/zishrink.awk up to 1.1.1.3
external/public-domain/tz/dist/zone.tab up to 1.1.1.14
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.16
Update of /cvsroot/src/external/public-domain/tz/dist
In directory ivanova.netbsd.org:/tmp/cvs-serv18468
Log Message:
Import tzdata2018d from ftp://ftp.iana.org/tz/releases/tzdata2018d.tar.gz
Summary of changes in tzdata2018d (2018-03-22 07:05:46 -0700):
In 2018, Palestine starts DST on March 24 (today!), not March 31
Casey Station in Antarctica changed from +11 to +08 on 2018-03-11
at 04:00.
Various adjustments to some historical conversions (several for
Uruguay (1920 .. 1990), one fpr Enderbury and Kiritimati (1994/5),
one for Portugal and colonies (1912) and Jamaica and Turks & Caicos
(pre 1913)).
@
text
@d53 1
a53 1
# and +0330 for integer hour and minute UT offsets. Although earlier
d72 1
a72 1
Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 -
d75 1
a75 1
Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 -
d78 1
a78 1
Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 -
d113 1
a113 1
Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 -
d139 1
a139 1
Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 -
d226 1
a226 1
Rule Dhaka 2009 only - Jun 19 23:00 1:00 -
d650 1
a650 1
# (UT+9). The adoption began on Oct 1, 1937. The original text can
d654 1
a654 1
# That is, the time zone of Taipei switched to UT+9 on Oct 1, 1937.
d657 2
a658 2
# I've found more evidence about when the time zone was switched from UT+9
# back to UT+8 after WW2. I believe it was on Sep 21, 1945. In a document
d660 1
a660 1
# zone back to Western Standard Time (UT+8) on Sep 21. And in another
a766 1
# See Europe/Lisbon for info about the 1912 transition.
d768 1
a768 1
Zone Asia/Macau 7:34:20 - LMT 1911 Dec 31 16:00u
d1109 47
a1155 47
Rule Iran 1978 1980 - Mar 21 0:00 1:00 -
Rule Iran 1978 only - Oct 21 0:00 0 -
Rule Iran 1979 only - Sep 19 0:00 0 -
Rule Iran 1980 only - Sep 23 0:00 0 -
Rule Iran 1991 only - May 3 0:00 1:00 -
Rule Iran 1992 1995 - Mar 22 0:00 1:00 -
Rule Iran 1991 1995 - Sep 22 0:00 0 -
Rule Iran 1996 only - Mar 21 0:00 1:00 -
Rule Iran 1996 only - Sep 21 0:00 0 -
Rule Iran 1997 1999 - Mar 22 0:00 1:00 -
Rule Iran 1997 1999 - Sep 22 0:00 0 -
Rule Iran 2000 only - Mar 21 0:00 1:00 -
Rule Iran 2000 only - Sep 21 0:00 0 -
Rule Iran 2001 2003 - Mar 22 0:00 1:00 -
Rule Iran 2001 2003 - Sep 22 0:00 0 -
Rule Iran 2004 only - Mar 21 0:00 1:00 -
Rule Iran 2004 only - Sep 21 0:00 0 -
Rule Iran 2005 only - Mar 22 0:00 1:00 -
Rule Iran 2005 only - Sep 22 0:00 0 -
Rule Iran 2008 only - Mar 21 0:00 1:00 -
Rule Iran 2008 only - Sep 21 0:00 0 -
Rule Iran 2009 2011 - Mar 22 0:00 1:00 -
Rule Iran 2009 2011 - Sep 22 0:00 0 -
Rule Iran 2012 only - Mar 21 0:00 1:00 -
Rule Iran 2012 only - Sep 21 0:00 0 -
Rule Iran 2013 2015 - Mar 22 0:00 1:00 -
Rule Iran 2013 2015 - Sep 22 0:00 0 -
Rule Iran 2016 only - Mar 21 0:00 1:00 -
Rule Iran 2016 only - Sep 21 0:00 0 -
Rule Iran 2017 2019 - Mar 22 0:00 1:00 -
Rule Iran 2017 2019 - Sep 22 0:00 0 -
Rule Iran 2020 only - Mar 21 0:00 1:00 -
Rule Iran 2020 only - Sep 21 0:00 0 -
Rule Iran 2021 2023 - Mar 22 0:00 1:00 -
Rule Iran 2021 2023 - Sep 22 0:00 0 -
Rule Iran 2024 only - Mar 21 0:00 1:00 -
Rule Iran 2024 only - Sep 21 0:00 0 -
Rule Iran 2025 2027 - Mar 22 0:00 1:00 -
Rule Iran 2025 2027 - Sep 22 0:00 0 -
Rule Iran 2028 2029 - Mar 21 0:00 1:00 -
Rule Iran 2028 2029 - Sep 21 0:00 0 -
Rule Iran 2030 2031 - Mar 22 0:00 1:00 -
Rule Iran 2030 2031 - Sep 22 0:00 0 -
Rule Iran 2032 2033 - Mar 21 0:00 1:00 -
Rule Iran 2032 2033 - Sep 21 0:00 0 -
Rule Iran 2034 2035 - Mar 22 0:00 1:00 -
Rule Iran 2034 2035 - Sep 22 0:00 0 -
d1162 2
a1163 2
Rule Iran 2036 max - Mar 21 0:00 1:00 -
Rule Iran 2036 max - Sep 21 0:00 0 -
d1199 6
a1204 6
Rule Iraq 1982 only - May 1 0:00 1:00 -
Rule Iraq 1982 1984 - Oct 1 0:00 0 -
Rule Iraq 1983 only - Mar 31 0:00 1:00 -
Rule Iraq 1984 1985 - Apr 1 0:00 1:00 -
Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 -
Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 -
d1208 2
a1209 2
Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 -
Rule Iraq 1991 2007 - Oct 1 3:00s 0 -
d1467 11
a1477 11
# From Takayuki Nikai (2018-01-19):
# The source of information is Japanese law.
# http://www.shugiin.go.jp/internet/itdb_housei.nsf/html/houritsu/00219480428029.htm
# http://www.shugiin.go.jp/internet/itdb_housei.nsf/html/houritsu/00719500331039.htm
# ... In summary, it is written as follows. From 24:00 on the first Saturday
# in May, until 0:00 on the day after the second Saturday in September.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Japan 1948 only - May Sat>=1 24:00 1:00 D
Rule Japan 1948 1951 - Sep Sun>=9 0:00 0 S
Rule Japan 1949 only - Apr Sat>=1 24:00 1:00 D
Rule Japan 1950 1951 - May Sat>=1 24:00 1:00 D
d1481 2
a1482 1
# Observatory: 139° 44' 40.90" E (9h 18m 58.727s), 35° 39' 16.0" N.
d1490 1
a1490 1
# which stands for the time on 135° E.
d1493 1
a1493 1
# time", which stands for the time on 120° E.... But "western standard
d1508 1
a1508 1
# Central Time (UT+9). The adoption began on Oct 1, 1937.
d1906 1
a1906 1
Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 -
d1908 1
a1908 1
Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 -
d2040 1
a2040 1
Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 -
d2069 2
a2070 2
Zone Indian/Maldives 4:54:00 - LMT 1880 # Malé
4:54:00 - MMT 1960 # Malé Mean Time
d2185 1
a2185 1
Rule Mongol 1983 1984 - Apr 1 0:00 1:00 -
d2202 1
a2202 1
Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 -
d2205 1
a2205 1
Rule Mongol 2001 only - Apr lastSat 2:00 1:00 -
d2207 2
a2208 2
Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 -
Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 -
d2642 3
a2660 10
# From Sharef Mustafa (2018-03-16):
# Palestine summer time will start on Mar 24th 2018 by advancing the
# clock by 60 minutes as per Palestinian cabinet decision published on
# the offical website, though the decree did not specify the exact
# time of the time shift.
# http://www.palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e7a42ab7-ee23-435a-b9c8-a4f7e81f3817
#
# From Paul Eggert (2018-03-16):
# For 2016 on, predict spring transitions on March's fourth Saturday at 01:00.
d2690 1
a2690 1
Rule Palestine 2016 max - Mar Sat>=22 1:00 1:00 S
d2740 1
a2740 1
Rule Phil 1936 only - Nov 1 0:00 1:00 -
d2742 1
a2742 1
Rule Phil 1954 only - Apr 12 0:00 1:00 -
d2744 1
a2744 1
Rule Phil 1978 only - Mar 22 0:00 1:00 -
d3100 1
a3100 1
# Phù Liễn Observatory, legally 104° 17' 17" east of Paris.
d3102 1
a3102 1
# the Paris Meridian (2° 20' 14.03" E); the former yields 07:06:30.1333...
@
1.1.1.1.4.10
log
@Catch up to current for the following, requested by kre in ticket #1634:
external/public-domain/tz/dist/Makefile up to 1.1.1.21
external/public-domain/tz/dist/NEWS up to 1.1.1.22
external/public-domain/tz/dist/TZDATA_VERSION up to 1.12
external/public-domain/tz/dist/africa up to 1.1.1.15
external/public-domain/tz/dist/asia up to 1.1.1.20
external/public-domain/tz/dist/australasia up to 1.1.1.15
external/public-domain/tz/dist/europe up to 1.1.1.21
external/public-domain/tz/dist/theory.html up to 1.1.1.4
external/public-domain/tz/dist/version up to 1.1.1.9
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.2
doc/3RDPARTY 1.1520 (patch)
Import tzdata2018e from ftp://ftp.iana.org/tz/releases/tzdata2018e.tar.gz
Summary of changes in tzdata2018e (2018-05-01 23:42:51 -0700):
News for the tz database
Release 2018e - 2018-05-01 23:42:51 -0700
North Korea switches back to +09 on 2018-05-05 (tomorrow!)
@
text
@a1985 13
# From Kang Seonghoon (2018-04-29):
# North Korea will revert its time zone from UTC+8:30 (PYT; Pyongyang
# Time) back to UTC+9 (KST; Korea Standard Time).
#
# From Seo Sanghyeon (2018-04-30):
# Rodong Sinmun 2018-04-30 announced Pyongyang Time transition plan.
# https://www.nknews.org/kcna/wp-content/uploads/sites/5/2018/04/rodong-2018-04-30.pdf
# ... the transition date is 2018-05-05 ... Citation should be Decree
# No. 2232 of April 30, 2018, of the Presidium of the Supreme People's
# Assembly, as published in Rodong Sinmun.
# From Tim Parenti (2018-04-29):
# It appears to be the front page story at the top in the right-most column.
d1997 1
a1997 2
8:30 - KST 2018 May 5
9:00 - KST
d2661 1
a2661 1
# the official website, though the decree did not specify the exact
@
1.1.1.1.4.11
log
@Sync external/public-domain/tz/dist to current, requested by kre
in ticket #1644:
external/public-domain/tz/dist/CONTRIBUTING up to 1.1.1.6
external/public-domain/tz/dist/Makefile up to 1.1.1.22
external/public-domain/tz/dist/NEWS up to 1.1.1.24
external/public-domain/tz/dist/README up to 1.1.1.7
external/public-domain/tz/dist/TZDATA_VERSION up to 1.14
external/public-domain/tz/dist/africa up to 1.1.1.17
external/public-domain/tz/dist/antarctica up to 1.1.1.11
external/public-domain/tz/dist/asia up to 1.1.1.21
external/public-domain/tz/dist/australasia up to 1.1.1.16
external/public-domain/tz/dist/backward up to 1.1.1.9
external/public-domain/tz/dist/backzone up to 1.1.1.15
external/public-domain/tz/dist/etcetera up to 1.1.1.3
external/public-domain/tz/dist/europe up to 1.1.1.23
external/public-domain/tz/dist/factory up to 1.1.1.3
external/public-domain/tz/dist/leap-seconds.list up to 1.1.1.10
external/public-domain/tz/dist/leapseconds up to 1.1.1.11
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.7
external/public-domain/tz/dist/northamerica up to 1.1.1.21
external/public-domain/tz/dist/pacificnew up to 1.1.1.2
external/public-domain/tz/dist/southamerica up to 1.1.1.15
external/public-domain/tz/dist/systemv up to 1.1.1.2
external/public-domain/tz/dist/theory.html up to 1.1.1.6
external/public-domain/tz/dist/version up to 1.1.1.11
external/public-domain/tz/dist/yearistype.sh up to 1.1.1.2
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.3
external/public-domain/tz/dist/zishrink.awk up to 1.1.1.5
external/public-domain/tz/dist/zone.tab up to 1.1.1.15
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.17
external/public-domain/tz/dist/zoneinfo2tdf.pl up to 1.1.1.2
doc/3RDPARTY (apply patch)
Import tzdata2018f from ftp://ftp.iana.org/tz/releases/tzdata2018f.tar.gz
Volgograd moves from +03 to +04 on 2018-10-28.
Fiji ends DST 2019-01-13, not 2019-01-20.
Most of Chile changes DST dates, effective 2019-04-06.
Plus corrections to North Korea's 2018-05-05 and China's April 1988
updates (getting the actual time/date of the transition correct)
Corrections for Macau pre 1992, Japan in late 1940's - early 1950's,
and China (Shanghai) 1940's. The Phillipines get their timezone
name abbreviations back.
-
Import tzdata2018g from ftp://ftp.iana.org/tz/releases/tzdata2018g.tar.gz
Summary of changes in tzdata2018g (2018-10-26 22:22:45 -0700):
Morocco switches to permanent +01 on 2018-10-27.
@
text
@a0 2
# tzdb data for Asia and environs
d9 1
a9 1
# From Paul Eggert (2018-06-19):
d38 1
a38 2
# The following alphabetic abbreviations appear in these tables
# (corrections are welcome):
a46 1
# 8:00 PST PDT* Philippine Standard Time
a51 1
# *I invented the abbreviation PDT; see "Philippines" below.
a283 23
# From Paul Eggert (2018-10-02):
# The following comes from Table 1 of:
# Li Yu. Research on the daylight saving movement in 1940s Shanghai.
# Nanjing Journal of Social Sciences. 2014;(2):144-50.
# http://oversea.cnki.net/kns55/detail.aspx?dbname=CJFD2014&filename=NJSH201402020
# The table lists dates only; I am guessing 00:00 and 24:00 transition times.
# Also, the table lists the planned end of DST in 1949, but the corresponding
# zone line cuts this off on May 28, when the Communists took power.
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Shang 1940 only - Jun 1 0:00 1:00 D
Rule Shang 1940 only - Oct 12 24:00 0 S
Rule Shang 1941 only - Mar 15 0:00 1:00 D
Rule Shang 1941 only - Nov 1 24:00 0 S
Rule Shang 1942 only - Jan 31 0:00 1:00 D
Rule Shang 1945 only - Sep 1 24:00 0 S
Rule Shang 1946 only - May 15 0:00 1:00 D
Rule Shang 1946 only - Sep 30 24:00 0 S
Rule Shang 1947 only - Apr 15 0:00 1:00 D
Rule Shang 1947 only - Oct 31 24:00 0 S
Rule Shang 1948 1949 - May 1 0:00 1:00 D
Rule Shang 1948 1949 - Sep 30 24:00 0 S #plan
d310 12
a321 27
# From P Chan (2018-05-07):
# The start and end time of DST in China [from 1986 on] should be 2:00
# (i.e. 2:00 to 3:00 at the start and 2:00 to 1:00 at the end)....
# Government notices about summer time:
#
# 1986-04-12 http://www.zj.gov.cn/attach/zfgb/198608.pdf p.21-22
# (To establish summer time from 1986. On 4 May, set the clocks ahead one hour
# at 2 am. On 14 September, set the clocks backward one hour at 2 am.)
#
# 1987-02-15 http://www.gov.cn/gongbao/shuju/1987/gwyb198703.pdf p.114
# (Summer time in 1987 to start from 12 April until 13 September)
#
# 1987-09-09 http://www.gov.cn/gongbao/shuju/1987/gwyb198721.pdf p.709
# (From 1988, summer time to start from 2 am of the first Sunday of mid-April
# until 2 am of the first Sunday of mid-September)
#
# 1992-03-03 http://www.gov.cn/gongbao/shuju/1992/gwyb199205.pdf p.152
# (To suspend summer time from 1992)
#
# The first page of People's Daily on 12 April 1988 stating that summer time
# to begin on 17 April.
# http://data.people.com.cn/pic/101p/1988/04/1988041201.jpg
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule PRC 1986 only - May 4 2:00 1:00 D
Rule PRC 1986 1991 - Sep Sun>=11 2:00 0 S
Rule PRC 1987 1991 - Apr Sun>=11 2:00 1:00 D
d343 1
a343 1
# Guo Qing-sheng (National Time-Service Center, CAS, Xi'an 710600, China)
d346 1
a346 2
# (Zhongguo ke ji shi liao, 中国科技史料). 2003;24(1):5-9.
# http://oversea.cnki.net/kcms/detail/detail.aspx?filename=ZGKS200301000&dbname=CJFD2003
d523 1
a523 1
8:00 Shang C%sT 1949 May 28
d752 18
a769 134
#
# From P Chan (2018-05-10):
# * LegisMac
# http://legismac.safp.gov.mo/legismac/descqry/Descqry.jsf?lang=pt
# A database for searching titles of legal documents of Macau in
# Chinese and Portuguese. The term "HORÁRIO DE VERÃO" can be used for
# searching decrees about summer time.
# * Archives of Macao
# http://www.archives.gov.mo/en/bo/
# It contains images of old official gazettes.
# * The Macao Meteorological and Geophysical Bureau have a page listing the
# summer time history. But it is not complete and has some mistakes.
# http://www.smg.gov.mo/smg/geophysics/e_t_Summer%20Time.htm
# Macau adopted GMT+8 on 30 Oct 1904 to follow Hong Kong. Clocks were
# advanced by 25 minutes and 50 seconds. Which means the LMT used was
# +7:34:10. As stated in the "Portaria No. 204" dated 21 October 1904
# and published in the Official Gazette on 29 October 1904.
# http://igallery.icm.gov.mo/Images/Archives/BO/MO_AH_PUB_BO_1904_10/MO_AH_PUB_BO_1904_10_00025_Grey.JPG
#
# Therefore the 1911 decree of Portugal did not change time in Macau.
#
# From LegisMac, here is a list of decrees that changed the time ...
# [Decree Gazette-no. date; titles omitted in this quotation]
# DIL 732 BOCM 51 1941.12.20
# DIL 764 BOCM 9S 1942.04.30
# DIL 781 BOCM 21 1942.10.10
# PT 3434 BOCM 8S 1943.04.17
# PT 3504 BOCM 20 1943.09.25
# PT 3843 BOCM 39 1945.09.29
# PT 3961 BOCM 17 1946.04.27
# PT 4026 BOCM 39 1946.09.28
# PT 4153 BOCM 16 1947.04.10
# PT 4271 BOCM 48 1947.11.29
# PT 4374 BOCM 18 1948.05.01
# PT 4465 BOCM 44 1948.10.30
# PT 4590 BOCM 14 1949.04.02
# PT 4666 BOCM 44 1949.10.29
# PT 4771 BOCM 12 1950.03.25
# PT 4838 BOCM 43 1950.10.28
# PT 4946 BOCM 12 1951.03.24
# PT 5025 BO 43 1951.10.27
# PT 5149 BO 14 1952.04.05
# PT 5251 BO 43 1952.10.25
# PT 5366 BO 13 1953.03.28
# PT 5444 BO 44 1953.10.31
# PT 5540 BO 12 1954.03.20
# PT 5589 BO 44 1954.10.30
# PT 5676 BO 12 1955.03.19
# PT 5739 BO 45 1955.11.05
# PT 5823 BO 11 1956.03.17
# PT 5891 BO 44 1956.11.03
# PT 5981 BO 12 1957.03.23
# PT 6064 BO 43 1957.10.26
# PT 6172 BO 12 1958.03.22
# PT 6243 BO 43 1958.10.25
# PT 6341 BO 12 1959.03.21
# PT 6411 BO 43 1959.10.24
# PT 6514 BO 11 1960.03.12
# PT 6584 BO 44 1960.10.29
# PT 6721 BO 10 1961.03.11
# PT 6815 BO 43 1961.10.28
# PT 6947 BO 10 1962.03.10
# PT 7080 BO 43 1962.10.27
# PT 7218 BO 12 1963.03.23
# PT 7340 BO 43 1963.10.26
# PT 7491 BO 11 1964.03.14
# PT 7664 BO 43 1964.10.24
# PT 7846 BO 15 1965.04.10
# PT 7979 BO 42 1965.10.16
# PT 8146 BO 15 1966.04.09
# PT 8252 BO 41 1966.10.08
# PT 8429 BO 15 1967.04.15
# PT 8540 BO 41 1967.10.14
# PT 8735 BO 15 1968.04.13
# PT 8860 BO 41 1968.10.12
# PT 9035 BO 16 1969.04.19
# PT 9156 BO 42 1969.10.18
# PT 9328 BO 15 1970.04.11
# PT 9418 BO 41 1970.10.10
# PT 9587 BO 14 1971.04.03
# PT 9702 BO 41 1971.10.09
# PT 38-A/72 BO 14 1972.04.01
# PT 126-A/72 BO 41 1972.10.07
# PT 61/73 BO 14 1973.04.07
# PT 182/73 BO 40 1973.10.06
# PT 282/73 BO 51 1973.12.22
# PT 177/74 BO 41 1974.10.12
# PT 51/75 BO 15 1975.04.12
# PT 173/75 BO 41 1975.10.11
# PT 67/76/M BO 14 1976.04.03
# PT 169/76/M BO 41 1976.10.09
# PT 78/79/M BO 19 1979.05.12
# PT 166/79/M BO 42 1979.10.20
# Note that DIL 732 does not belong to "HORÁRIO DE VERÃO" according to
# LegisMac.... Note that between 1942 and 1945, the time switched
# between GMT+9 and GMT+10. Also in 1965 and 1965 the DST ended at 2:30am.
# From Paul Eggert (2018-05-10):
# The 1904 decree says that Macau changed from the meridian of
# Fortaleza do Monte, presumably the basis for the 7:34:10 for LMT.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Macau 1942 1943 - Apr 30 23:00 1:00 -
Rule Macau 1942 only - Nov 17 23:00 0 -
Rule Macau 1943 only - Sep 30 23:00 0 S
Rule Macau 1946 only - Apr 30 23:00s 1:00 D
Rule Macau 1946 only - Sep 30 23:00s 0 S
Rule Macau 1947 only - Apr 19 23:00s 1:00 D
Rule Macau 1947 only - Nov 30 23:00s 0 S
Rule Macau 1948 only - May 2 23:00s 1:00 D
Rule Macau 1948 only - Oct 31 23:00s 0 S
Rule Macau 1949 1950 - Apr Sat>=1 23:00s 1:00 D
Rule Macau 1949 1950 - Oct lastSat 23:00s 0 S
Rule Macau 1951 only - Mar 31 23:00s 1:00 D
Rule Macau 1951 only - Oct 28 23:00s 0 S
Rule Macau 1952 1953 - Apr Sat>=1 23:00s 1:00 D
Rule Macau 1952 only - Nov 1 23:00s 0 S
Rule Macau 1953 1954 - Oct lastSat 23:00s 0 S
Rule Macau 1954 1956 - Mar Sat>=17 23:00s 1:00 D
Rule Macau 1955 only - Nov 5 23:00s 0 S
Rule Macau 1956 1964 - Nov Sun>=1 03:30 0 S
Rule Macau 1957 1964 - Mar Sun>=18 03:30 1:00 D
Rule Macau 1965 1973 - Apr Sun>=16 03:30 1:00 D
Rule Macau 1965 1966 - Oct Sun>=16 02:30 0 S
Rule Macau 1967 1976 - Oct Sun>=16 03:30 0 S
Rule Macau 1973 only - Dec 30 03:30 1:00 D
Rule Macau 1975 1976 - Apr Sun>=16 03:30 1:00 D
Rule Macau 1979 only - May 13 03:30 1:00 D
Rule Macau 1979 only - Oct Sun>=16 03:30 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Macau 7:34:10 - LMT 1904 Oct 30
8:00 - CST 1941 Dec 21 23:00
9:00 Macau +09/+10 1945 Sep 30 24:00
a1473 20
# From Phake Nick (2018-09-27):
# [T]he webpage authored by National Astronomical Observatory of Japan
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EF.html
# ... mentioned that using Showa 23 (year 1948) as example, 13pm of September
# 11 in summer time will equal to 0am of September 12 in standard time.
# It cited a document issued by the Liaison Office which briefly existed
# during the postwar period of Japan, where the detail on implementation
# of the summer time is described in the document.
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EFB2C6BBFEB9EFA4CEBCC2BBDCA4CBA4C4A4A4A4C6.pdf
# The text in the document do instruct a fall back to occur at
# September 11, 13pm in summer time, while ordinary citizens can
# change the clock before they sleep.
#
# From Paul Eggert (2018-09-27):
# This instruction is equivalent to "Sat>=8 25:00", so use that. zic treats
# it like "Sun>=9 01:00", which is not quite the same but is the best we can
# do in any POSIX or C platform. The "25:00" assumes zic from 2007 or later,
# which should be safe now.
d1476 1
a1476 1
Rule Japan 1948 1951 - Sep Sat>=8 25:00 0 S
d1858 1
a1858 1
# so include timestamps before 1963.
a1997 4
#
# From Paul Eggert (2018-05-04):
# The BBC reported that the transition was from 23:30 to 24:00 today.
# https://www.bbc.com/news/world-asia-44010705
d2010 1
a2010 1
8:30 - KST 2018 May 4 23:30
d2760 7
a2766 23
# From Paul Goyette (2018-06-15):
# In the Philippines, there is a national law, Republic Act No. 10535
# which declares the official time here as "Philippine Standard Time".
# The act [1] even specifies use of PST as the abbreviation, although
# the FAQ provided by PAGASA [2] uses the "acronym PhST to distinguish
# it from the Pacific Standard Time (PST)."
# [1] http://www.officialgazette.gov.ph/2013/05/15/republic-act-no-10535/
# [2] https://www1.pagasa.dost.gov.ph/index.php/astronomy/philippine-standard-time#republic-act-10535
#
# From Paul Eggert (2018-06-19):
# I surveyed recent news reports, and my impression is that "PST" is
# more popular among reliable English-language news sources. This is
# not just a measure of Google hit counts: it's also the sizes and
# influence of the sources. There is no current abbreviation for DST,
# so use "PDT", the usual American style.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Phil 1936 only - Nov 1 0:00 1:00 D
Rule Phil 1937 only - Feb 1 0:00 0 S
Rule Phil 1954 only - Apr 12 0:00 1:00 D
Rule Phil 1954 only - Jul 1 0:00 0 S
Rule Phil 1978 only - Mar 22 0:00 1:00 D
Rule Phil 1978 only - Sep 21 0:00 0 S
d2770 3
a2772 3
8:00 Phil P%sT 1942 May
9:00 - JST 1944 Nov
8:00 Phil P%sT
d2783 1
a2783 1
# From Paul Eggert (2018-08-29):
d2785 1
a2785 1
# standardized until 1968 or so; we don't know exactly when, and possibly it
a2791 19
# Timekeeping differed depending on who you were and which part of Saudi
# Arabia you were in. In 1969, Elias Antar wrote that although a common
# practice had been to set one's watch to 12:00 (i.e., midnight) at sunset -
# which meant that the time on one side of a mountain could differ greatly from
# the time on the other side - many foreigners set their watches to 6pm
# instead, while airlines instead used UTC +03 (except in Dhahran, where they
# used UTC +04), Aramco used UTC +03 with DST, and the Trans-Arabian Pipe Line
# Company used Aramco time in eastern Saudi Arabia and airline time in western.
# (The American Military Aid Advisory Group used plain UTC.) Antar writes,
# "A man named Higgins, so the story goes, used to run a local power
# station. One day, the whole thing became too much for Higgins and he
# assembled his staff and laid down the law. 'I've had enough of this,' he
# shrieked. 'It is now 12 o'clock Higgins Time, and from now on this station is
# going to run on Higgins Time.' And so, until last year, it did." See:
# Antar E. Dinner at When? Saudi Aramco World, 1969 March/April. 2-3.
# http://archive.aramcoworld.com/issue/196902/dinner.at.when.htm
# newspapers.com says a similar story about Higgins was published in the Port
# Angeles (WA) Evening News, 1965-03-10, page 5, but I lack access to the text.
#
d2801 1
a2801 2
# the country. Presumably this is documenting airline time. Ignore this,
# as it's before our 1970 cutoff.
@
1.1.1.1.4.12
log
@Pull up the following, requested by kre in ticket #1670:
external/public-domain/tz/dist/Makefile up to 1.1.1.23
external/public-domain/tz/dist/NEWS up to 1.1.1.26
external/public-domain/tz/dist/TZDATA_VERSION up to 1.16
external/public-domain/tz/dist/africa up to 1.1.1.19
external/public-domain/tz/dist/asia up to 1.1.1.22
external/public-domain/tz/dist/australasia up to 1.1.1.17
external/public-domain/tz/dist/leapseconds up to 1.1.1.12
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.8
external/public-domain/tz/dist/northamerica up to 1.1.1.22
external/public-domain/tz/dist/theory.html up to 1.1.1.7
external/public-domain/tz/dist/version up to 1.1.1.13
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.4
external/public-domain/tz/dist/zone.tab up to 1.1.1.16
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.18
distrib/sets/lists/base/mi (patch)
doc/3RDPARTY (patch)
Import tzdata2018h from ftp://ftp.iana.org/tz/releases/tzdata2018h.tar.gz
Summary of changes in tzdata2018h (2018-12-23 17:59:32 -0800):
Qyzylorda (aka Kyzylorda) oblast in Kazakhstan moved from +06 to
+05 on 2018-12-21. This is a zone split as Qostanay (aka
Kostanay) did not switch, so create a zone Asia/Qostanay.
Metlakatla, Alaska observes PST this winter only.
Add predictions for Iran from 2038 through 2090.
Changes to some old timestamps for Nauru (1979) Guam (1959-77),
Hong Kong (1904, 1941, 1945, 1952) (others in Pacific during WWII)
---
Merge tzdata2018h
---
Update to tzdata2018h (new zone Asia/Qostanay)
---
Import tzdata2018i from ftp://ftp.iana.org/tz/releases/tzdata2018i.tar.gz
Summary of changes in tzdata2018i (2018-12-30 11:05:43 -0800):
Due to a change in government, Sao Tome and Principe switches back
from +01 to +00 on 2019-01-01 at 02:00.
---
Merge tzdata2018i
---
Update to tzdata2018i
@
text
@d589 1
a589 71
# From Phake Nick (2018-10-27):
# According to Singaporean newspaper
# http://eresources.nlb.gov.sg/newspapers/Digitised/Article/singfreepresswk19041102-1.2.37
# the day that Hong Kong start using GMT+8 should be Oct 30, 1904.
#
# From Paul Eggert (2018-11-17):
# Hong Kong had a time ball near the Marine Police Station, Tsim Sha Tsui.
# "The ball was raised manually each day and dropped at exactly 1pm
# (except on Sundays and Government holidays)."
# Dyson AD. From Time Ball to Atomic Clock. Hong Kong Government. 1983.
#
# "From 1904 October 30 the time-ball at Hong Kong has been dropped by order
# of the Governor of the Colony at 17h 0m 0s G.M.T., which is 23m 18s.14 in
# advance of 1h 0m 0s of Hong Kong mean time."
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc.
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382
#
# From Joseph Myers (2018-11-18):
# An astronomer before 1925 referring to GMT would have been using the old
# astronomical convention where the day started at noon, not midnight.
#
# From Steve Allen (2018-11-17):
# Meteorological Observations made at the Hongkong Observatory in the year 1904
# page 4
# ... the log of drop times in Table II shows that on Sunday 1904-10-30 the
# ball was dropped. So that looks like a special case drop for the sake
# of broadcasting the new local time.
#
# From Phake Nick (2018-11-18):
# According to The Hong Kong Weekly Press, 1904-10-29, p.324, the
# governor of Hong Kong at the time stated that "We are further desired to
# make it known that the change will be effected by firing the gun and by the
# dropping of the Ball at 23min. 18sec. before one."
# From Paul Eggert (2018-11-18):
# See for this; unfortunately Flash is required.
# From Phake Nick (2018-10-26):
# I went to check microfilm records stored at Hong Kong Public Library....
# on September 30 1941, according to Ta Kung Pao (Hong Kong edition), it was
# stated that fallback would occur on the next day (the 1st)'s "03:00 am (Hong
# Kong Time 04:00 am)" and the clock will fall back for a half hour. (03:00
# probably refer to the time commonly used in mainland China at the time given
# the paper's background) ... the sunrise/sunset time given by South China
# Morning Post for October 1st was indeed moved by half an hour compares to
# before. After that, in December, the battle to capture Hong Kong started and
# the library doesn't seems to have any record stored about press during that
# period of time. Some media resumed publication soon after that within the
# same month, but there were not much information about time there. Later they
# started including a radio program guide when they restored radio service,
# explicitly mentioning it use Tokyo standard time, and later added a note
# saying it's half an hour ahead of the old Hong Kong standard time, and it
# also seems to indicate that Hong Kong was not using GMT+8 when it was
# captured by Japan.
#
# Image of related sections on newspaper:
# * 1941-09-30, Ta Kung Pao (Hong Kong), "Winter Time start tomorrow".
# https://i.imgur.com/6waY51Z.jpg (Chinese)
# * 1941-09-29, South China Morning Post, Information on sunrise/sunset
# time and other things for September 30 and October 1.
# https://i.imgur.com/kCiUR78.jpg
# * 1942-02-05. The Hong Kong News, Radio Program Guide.
# https://i.imgur.com/eVvDMzS.jpg
# * 1941-06-14. Hong Kong Daily Press, Daylight Saving from 3am Tomorrow.
# https://i.imgur.com/05KkvtC.png
# * 1941-09-30, Hong Kong Daily Press, Winter Time Warning.
# https://i.imgur.com/dge4kFJ.png
# Also, the Liberation day of Hong Kong after WWII which British rule
# over the territory resumed was August 30, 1945, which I think should
# be the termination date for the use of JST in the territory....
# From Paul Eggert (2018-11-17):
d591 2
a592 2
# https://www.hko.gov.hk/gts/time/Summertime.htm
# as of 2014-06-19:
d594 1
a594 1
# 1941 15 Jun to 30 Sep
d605 1
a605 1
# 1952 6 Apr to 2 Nov
d634 6
a639 9
# The page does not give times of day for transitions,
# or dates for the 1942 and 1945 transitions.
# The Japanese occupation of Hong Kong began 1941-12-25.
# The Japanese surrender of Hong Kong was signed 1945-09-16; see:
# Heaver S. The days after the Pacific war ended: unsettling times
# in Hong Kong. Post Magazine. 2016-06-13.
# https://www.scmp.com/magazines/post-magazine/article/1852990/days-after-pacific-war-ended-unsettling-times-hong-kong
# For lack of anything better, use start of those days as the
# transition times.
d642 2
d650 1
a650 1
Rule HK 1952 1953 - Nov Sun>=1 3:30 0 -
d652 1
d662 3
a664 5
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30 0:36:42
8:00 - HKT 1941 Jun 15 3:30
8:00 1:00 HKST 1941 Oct 1 4:00
8:30 - HKT 1941 Dec 25
9:00 - JST 1945 Sep 16
a1059 10
# British astronomer Henry Park Hollis disliked India Standard Time's offset:
# "A new time system has been proposed for India, Further India, and Burmah.
# The scheme suggested is that the times of the meridians 5½ and 6½ hours
# east of Greenwich should be adopted in these territories. No reason is
# given why hourly meridians five hours and six hours east should not be
# chosen; a plan which would bring the time of India into harmony with
# that of almost the whole of the civilised world."
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc.
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382
d1230 1
a1230 1
# From Paul Eggert (2018-11-30):
d1232 4
a1235 57
# I used the following code in GNU Emacs 26.1 to generate the "Rule Iran"
# lines from 2008 through 2087. Emacs 26.1 uses Ed Reingold's
# cal-persia implementation of Birashk's approximation, which in the
# 2008-2087 range disagrees with the the astronomical Persian calendar
# for Persian years 1404 (Gregorian 2025) and 1437 (Gregorian 2058),
# so the following code special-case those years. See Table 15.1, page 264, of:
# Edward M. Reingold and Nachum Dershowitz, Calendrical Calculations:
# The Ultimate Edition, Cambridge University Press (2018).
# https://www.cambridge.org/fr/academic/subjects/computer-science/computing-general-interest/calendrical-calculations-ultimate-edition-4th-edition
# Page 258, footnote 2, of this book says there is some dispute over what will
# happen in 2091 (and some other years after that), so this code
# stops in 2087, as 2088 and 2089 agree with the "max" rule below.
# (cl-loop
# initially (require 'cal-persia)
# with first-persian-year = 1387
# with last-persian-year = 1466
# ;; Exceptional years in the above range,
# ;; from Reingold & Dershowitz Table 15.1, page 264:
# with exceptional-persian-years = '(1404 1437)
# with range-start = nil
# for persian-year from first-persian-year to last-persian-year
# do
# (let*
# ((exceptional-year-offset
# (if (member persian-year exceptional-persian-years) 1 0))
# (beg-dst-absolute
# (+ (calendar-persian-to-absolute (list 1 1 persian-year))
# exceptional-year-offset))
# (end-dst-absolute
# (+ (calendar-persian-to-absolute (list 6 30 persian-year))
# exceptional-year-offset))
# (next-year-beg-dst-absolute
# (+ (calendar-persian-to-absolute (list 1 1 (1+ persian-year)))
# (if (member (1+ persian-year) exceptional-persian-years) 1 0)))
# (beg-dst (calendar-gregorian-from-absolute beg-dst-absolute))
# (end-dst (calendar-gregorian-from-absolute end-dst-absolute))
# (next-year-beg-dst (calendar-gregorian-from-absolute
# next-year-beg-dst-absolute))
# (year (calendar-extract-year beg-dst))
# (range-end (if range-start year "only")))
# (setq range-start (or range-start year))
# (when (or (/= (calendar-extract-day beg-dst)
# (calendar-extract-day next-year-beg-dst))
# (= persian-year last-persian-year))
# (insert
# (format
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t1:00\t-\n"
# range-start range-end
# (calendar-month-name (calendar-extract-month beg-dst) t)
# (calendar-extract-day beg-dst)))
# (insert
# (format
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t0\t-\n"
# range-start range-end
# (calendar-month-name (calendar-extract-month end-dst) t)
# (calendar-extract-day end-dst)))
# (setq range-start nil))))
d1270 51
a1320 103
Rule Iran 1978 1980 - Mar 20 24:00 1:00 -
Rule Iran 1978 only - Oct 20 24:00 0 -
Rule Iran 1979 only - Sep 18 24:00 0 -
Rule Iran 1980 only - Sep 22 24:00 0 -
Rule Iran 1991 only - May 2 24:00 1:00 -
Rule Iran 1992 1995 - Mar 21 24:00 1:00 -
Rule Iran 1991 1995 - Sep 21 24:00 0 -
Rule Iran 1996 only - Mar 20 24:00 1:00 -
Rule Iran 1996 only - Sep 20 24:00 0 -
Rule Iran 1997 1999 - Mar 21 24:00 1:00 -
Rule Iran 1997 1999 - Sep 21 24:00 0 -
Rule Iran 2000 only - Mar 20 24:00 1:00 -
Rule Iran 2000 only - Sep 20 24:00 0 -
Rule Iran 2001 2003 - Mar 21 24:00 1:00 -
Rule Iran 2001 2003 - Sep 21 24:00 0 -
Rule Iran 2004 only - Mar 20 24:00 1:00 -
Rule Iran 2004 only - Sep 20 24:00 0 -
Rule Iran 2005 only - Mar 21 24:00 1:00 -
Rule Iran 2005 only - Sep 21 24:00 0 -
Rule Iran 2008 only - Mar 20 24:00 1:00 -
Rule Iran 2008 only - Sep 20 24:00 0 -
Rule Iran 2009 2011 - Mar 21 24:00 1:00 -
Rule Iran 2009 2011 - Sep 21 24:00 0 -
Rule Iran 2012 only - Mar 20 24:00 1:00 -
Rule Iran 2012 only - Sep 20 24:00 0 -
Rule Iran 2013 2015 - Mar 21 24:00 1:00 -
Rule Iran 2013 2015 - Sep 21 24:00 0 -
Rule Iran 2016 only - Mar 20 24:00 1:00 -
Rule Iran 2016 only - Sep 20 24:00 0 -
Rule Iran 2017 2019 - Mar 21 24:00 1:00 -
Rule Iran 2017 2019 - Sep 21 24:00 0 -
Rule Iran 2020 only - Mar 20 24:00 1:00 -
Rule Iran 2020 only - Sep 20 24:00 0 -
Rule Iran 2021 2023 - Mar 21 24:00 1:00 -
Rule Iran 2021 2023 - Sep 21 24:00 0 -
Rule Iran 2024 only - Mar 20 24:00 1:00 -
Rule Iran 2024 only - Sep 20 24:00 0 -
Rule Iran 2025 2027 - Mar 21 24:00 1:00 -
Rule Iran 2025 2027 - Sep 21 24:00 0 -
Rule Iran 2028 2029 - Mar 20 24:00 1:00 -
Rule Iran 2028 2029 - Sep 20 24:00 0 -
Rule Iran 2030 2031 - Mar 21 24:00 1:00 -
Rule Iran 2030 2031 - Sep 21 24:00 0 -
Rule Iran 2032 2033 - Mar 20 24:00 1:00 -
Rule Iran 2032 2033 - Sep 20 24:00 0 -
Rule Iran 2034 2035 - Mar 21 24:00 1:00 -
Rule Iran 2034 2035 - Sep 21 24:00 0 -
Rule Iran 2036 2037 - Mar 20 24:00 1:00 -
Rule Iran 2036 2037 - Sep 20 24:00 0 -
Rule Iran 2038 2039 - Mar 21 24:00 1:00 -
Rule Iran 2038 2039 - Sep 21 24:00 0 -
Rule Iran 2040 2041 - Mar 20 24:00 1:00 -
Rule Iran 2040 2041 - Sep 20 24:00 0 -
Rule Iran 2042 2043 - Mar 21 24:00 1:00 -
Rule Iran 2042 2043 - Sep 21 24:00 0 -
Rule Iran 2044 2045 - Mar 20 24:00 1:00 -
Rule Iran 2044 2045 - Sep 20 24:00 0 -
Rule Iran 2046 2047 - Mar 21 24:00 1:00 -
Rule Iran 2046 2047 - Sep 21 24:00 0 -
Rule Iran 2048 2049 - Mar 20 24:00 1:00 -
Rule Iran 2048 2049 - Sep 20 24:00 0 -
Rule Iran 2050 2051 - Mar 21 24:00 1:00 -
Rule Iran 2050 2051 - Sep 21 24:00 0 -
Rule Iran 2052 2053 - Mar 20 24:00 1:00 -
Rule Iran 2052 2053 - Sep 20 24:00 0 -
Rule Iran 2054 2055 - Mar 21 24:00 1:00 -
Rule Iran 2054 2055 - Sep 21 24:00 0 -
Rule Iran 2056 2057 - Mar 20 24:00 1:00 -
Rule Iran 2056 2057 - Sep 20 24:00 0 -
Rule Iran 2058 2059 - Mar 21 24:00 1:00 -
Rule Iran 2058 2059 - Sep 21 24:00 0 -
Rule Iran 2060 2062 - Mar 20 24:00 1:00 -
Rule Iran 2060 2062 - Sep 20 24:00 0 -
Rule Iran 2063 only - Mar 21 24:00 1:00 -
Rule Iran 2063 only - Sep 21 24:00 0 -
Rule Iran 2064 2066 - Mar 20 24:00 1:00 -
Rule Iran 2064 2066 - Sep 20 24:00 0 -
Rule Iran 2067 only - Mar 21 24:00 1:00 -
Rule Iran 2067 only - Sep 21 24:00 0 -
Rule Iran 2068 2070 - Mar 20 24:00 1:00 -
Rule Iran 2068 2070 - Sep 20 24:00 0 -
Rule Iran 2071 only - Mar 21 24:00 1:00 -
Rule Iran 2071 only - Sep 21 24:00 0 -
Rule Iran 2072 2074 - Mar 20 24:00 1:00 -
Rule Iran 2072 2074 - Sep 20 24:00 0 -
Rule Iran 2075 only - Mar 21 24:00 1:00 -
Rule Iran 2075 only - Sep 21 24:00 0 -
Rule Iran 2076 2078 - Mar 20 24:00 1:00 -
Rule Iran 2076 2078 - Sep 20 24:00 0 -
Rule Iran 2079 only - Mar 21 24:00 1:00 -
Rule Iran 2079 only - Sep 21 24:00 0 -
Rule Iran 2080 2082 - Mar 20 24:00 1:00 -
Rule Iran 2080 2082 - Sep 20 24:00 0 -
Rule Iran 2083 only - Mar 21 24:00 1:00 -
Rule Iran 2083 only - Sep 21 24:00 0 -
Rule Iran 2084 2086 - Mar 20 24:00 1:00 -
Rule Iran 2084 2086 - Sep 20 24:00 0 -
Rule Iran 2087 only - Mar 21 24:00 1:00 -
Rule Iran 2087 only - Sep 21 24:00 0 -
#
# The following rules are approximations starting in the year 2088.
# These are the best post-2088 approximations available, given the
# restrictions of a single rule using ordinary Gregorian dates.
d1323 2
a1324 2
Rule Iran 2088 max - Mar 20 24:00 1:00 -
Rule Iran 2088 max - Sep 20 24:00 0 -
d1694 1
a1694 3
# Since 1938, all Japanese possessions have been like Asia/Tokyo,
# except that Truk (Chuuk), Ponape (Pohnpei), and Jaluit (Kosrae) did not
# switch from +10 to +09 until 1941-04-01; see the 'australasia' file.
d1984 2
a1985 4
# From Alexander Konzurovski (2018-12-20):
# Qyzyolrda Region (Asia/Qyzylorda) is changing its time zone from
# UTC+6 to UTC+5 effective December 21st, 2018. The legal document is
# located here: http://adilet.zan.kz/rus/docs/P1800000817 (russian language).
d1999 2
d2011 14
a2024 2
6:00 - +06 2018 Dec 21 0:00
5:00 - +05
a2025 13
# Qostanay (aka Kostanay, Kustanay) (KZ-KUS)
# The 1991/2 rules are unclear partly because of the 1997 Turgai
# reorganization.
Zone Asia/Qostanay 4:14:28 - LMT 1924 May 2
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
6:00 - +06
a2118 22
# From Phake Nick (2018-10-27):
# 1. According to official announcement from Korean government, the DST end
# date in South Korea should be
# 1955-09-08 without specifying time
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027977557
# 1956-09-29 without specifying time
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027978341
# 1957-09-21 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027979690#3
# 1958-09-20 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027981189
# 1959-09-19 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027982974#2
# 1960-09-17 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0028044104
# ...
# 2.... https://namu.wiki/w/대한민국%20표준시 ... [says]
# when Korea was using GMT+8:30 as standard time, the international
# aviation/marine/meteorological industry in the country refused to
# follow and continued to use GMT+9:00 for interoperability.
d2120 14
a2133 14
Rule ROK 1948 only - Jun 1 0:00 1:00 D
Rule ROK 1948 only - Sep 12 24:00 0 S
Rule ROK 1949 only - Apr 3 0:00 1:00 D
Rule ROK 1949 1951 - Sep Sat>=7 24:00 0 S
Rule ROK 1950 only - Apr 1 0:00 1:00 D
Rule ROK 1951 only - May 6 0:00 1:00 D
Rule ROK 1955 only - May 5 0:00 1:00 D
Rule ROK 1955 only - Sep 8 24:00 0 S
Rule ROK 1956 only - May 20 0:00 1:00 D
Rule ROK 1956 only - Sep 29 24:00 0 S
Rule ROK 1957 1960 - May Sun>=1 0:00 1:00 D
Rule ROK 1957 1960 - Sep Sat>=17 24:00 0 S
Rule ROK 1987 1988 - May Sun>=8 2:00 1:00 D
Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S
a2922 5
# From Paul Eggert (2018-11-18):
# The Spanish initially used American (west-of-Greenwich) time.
# It is unknown what time Manila kept when the British occupied it from
# 1762-10-06 through 1764-04; for now assume it kept American time.
d3008 2
a3009 2
# Also see: Antar EN. Arabian flying is confusing.
# Port Angeles (WA) Evening News. 1965-03-10. page 3.
@
1.1.1.2
log
@Import tzdata2014g from ftp://ftp.iana.org/tz/releases/tzdata2014g.tar.gz
Summary of changes in tzdata2014g (2014-08-28 12:31:23 -0700):
* Turks & Caicos is switching from US eastern time to UTC-4 year-round,
modeled as a switch from EST/EDT to AST on 2014-11-02 at 02:00.
* Time in Russia or the USSR before 1926 or so has been corrected by
a few seconds for several zones, and a few minutes for
Asia/Yekaterinburg.
* The Portuguese decree of 1911-05-26 took effect on 1912-01-01, not
on the date of the decree. This affects 1911 time stamps in
Africa/Bissau, Africa/Luanda, Atlantic/Azores, and Atlantic/Madeira.
* Lisbon's pre-1912 GMT offset was -0:36:45 (rounded from -0:36:44.68),
not -0:36:32.
* Asia/Dhaka ended DST on 2009-12-31 at 24:00, not 23:59.
* A new file 'backzone' contains data which may appeal to
connoisseurs of old time stamps, although it is out of scope for
the tz database, is often poorly sourced, and contains some data
that is known to be incorrect.
* Some more zones have been turned into links, when they differed
from existing zones only for older time stamps. As usual,
these changes affect UTC offsets in pre-1970 time stamps only.
Their old contents have been moved to the 'backzone' file.
* Changes affecting documentation and commentary.
@
text
@d4 1
a4 1
# This file is by no means authoritative; if you think you know better,
d6 1
a6 2
# tz@@iana.org for general use in the future). For more, please see
# the file CONTRIBUTING in the tz distribution.
d28 2
a29 6
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
# http://www.jstor.org/stable/1774359
#
# For Russian data circa 1919, a source is:
# Byalokoz EL. New Counting of Time in Russia since July 1, 1919.
# (See the 'europe' file for a fuller citation.)
d118 1
a118 1
4:00 RussiaAsia YER%sT 1991 Mar 31 2:00s
d120 1
a120 1
3:00 RussiaAsia AM%sT 1995 Sep 24 2:00s
d122 1
a122 1
4:00 RussiaAsia AM%sT 2012 Mar 25 2:00s
d135 1
a135 1
4:00 RussiaAsia BAK%sT 1991 Mar 31 2:00s
d138 1
a138 1
4:00 - AZT 1996 # Azerbaijan Time
d144 1
a144 1
Zone Asia/Bahrain 3:22:20 - LMT 1920 # Manamah
d222 1
a222 1
Rule Dhaka 2009 only - Dec 31 24:00 0 -
d253 1
a253 1
Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
d262 5
a266 5
Zone Asia/Rangoon 6:24:40 - LMT 1880 # or Yangon
6:24:40 - RMT 1920 # Rangoon Mean Time?
6:30 - BURT 1942 May # Burma Time
9:00 - JST 1945 May 3
6:30 - MMT # Myanmar Time
d271 1
a271 1
7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
d359 2
a360 2
# French docks in the 1890s, controlled by Xujiahui (Zikawei)
# Observatory and set to local mean time.
d384 1
a384 1
# this was based on what were apparently incorrect data in Shanks & Pottenger.
d504 1
a504 1
# During the 20th century parts of Xinjiang were ruled by the Qing dynasty,
d701 2
a702 2
# http://subtpg.tpg.gov.tw/og/image2.asp?f=03502F0AKM1AF
# http://subtpg.tpg.gov.tw/og/image2.asp?f=0350300AKM1B0 (cont.)
d707 1
a707 1
# http://subtpg.tpg.gov.tw/og/image2.asp?f=0360310AKZ431
d713 1
a713 1
# adoption till Oct 31 midnight.
d744 1
a744 1
9:00 - JST 1945 Sep 21 1:00
d764 1
a764 1
Zone Asia/Macau 7:34:20 - LMT 1912 Jan 1
d826 1
a826 3
# Milne 1899 says Tbilisi (Tiflis) time was 2:59:05.7.
# Byalokoz 1919 says Georgia was 2:59:11.
# Go with Byalokoz.
d829 2
a830 2
Zone Asia/Tbilisi 2:59:11 - LMT 1880
2:59:11 - TBMT 1924 May 2 # Tbilisi Mean Time
d832 1
a832 1
4:00 RussiaAsia TBI%sT 1991 Mar 31 2:00s
d834 1
a834 1
3:00 RussiaAsia GE%sT 1992 # Georgia Time
d839 1
a839 1
3:00 RussiaAsia GE%sT 2005 Mar lastSun 2:00
d867 1
a867 1
Zone Asia/Dili 8:22:20 - LMT 1912 Jan 1
d871 1
a871 1
8:00 - WITA 2000 Sep 17 0:00
d876 1
a876 1
Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata
d890 1
a890 1
# http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime
d927 1
a927 1
7:20 - JAVT 1932 Nov # Java Time
d1085 1
a1085 1
3:25:44 - TMT 1946 # Tehran Mean Time
d1130 1
a1130 1
2:57:36 - BMT 1918 # Baghdad Mean Time?
d1358 1
a1358 1
2:20:40 - JMT 1918 # Jerusalem Mean Time?
d1374 2
a1375 2
# From Mayumi Negishi in the 2005-08-10 Japan Times:
# http://www.japantimes.co.jp/cgi-bin/getarticle.pl5?nn20050810f2.htm
d1399 1
a1399 2
# Observatory: 139 degrees 44' 40.90" E (9h 18m 58.727s),
# 35 degrees 39' 16.0" N.
d1589 1
a1589 1
5:00 - QYZT 1992 Jan 19 2:00
d1592 1
a1592 1
# Aqtobe (aka Aktobe, formerly Aktyubinsk)
d1612 1
a1612 1
5:00 RussiaAsia AQT%sT 1995 Mar lastSun 2:00 # Aqtau Time
d1621 1
a1621 1
5:00 RussiaAsia URA%sT 1989 Mar 26 2:00
d1632 1
a1632 1
# http://eng.gateway.kg/cgi-bin/page.pl?id=1&story_name=doc9979.shtml
d1647 3
a1649 3
6:00 RussiaAsia FRU%sT 1991 Mar 31 2:00s
5:00 1:00 FRUST 1991 Aug 31 2:00 # independence
5:00 Kyrgyz KG%sT 2005 Aug 12 # Kyrgyzstan Time
d1656 2
a1657 2
# From Annie I. Bang (2006-07-10):
# http://www.koreaherald.co.kr/SITE/data/html_dir/2006/07/10/200607100012.asp
d1706 2
a1707 2
Zone Asia/Vientiane 6:50:24 - LMT 1906 Jun 9 # or Viangchan
7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
d1748 2
a1749 2
# taken from Mok Ly Yng (2003-10-30)
# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html
d1761 3
a1763 3
# From Paul Eggert (2014-08-12):
# The data entries here are mostly from Shanks & Pottenger, but the 1942, 1945
# and 1982 transition dates are from Mok Ly Yng.
d1766 1
a1766 1
7:30 - BORT 1933 # Borneo Time
d1774 3
a1776 3
Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
4:54:00 - MMT 1960 # Male Mean Time
5:00 - MVT # Maldives Time
d1838 1
a1838 1
# http://ubpost.mongolnews.mn/index.php?subaction=showcomments&id=1111634894&archive=&start_from=&ucat=1&
d1906 1
a1906 1
6:00 - HOVT 1978 # Hovd Time
d1910 1
a1910 1
7:00 - ULAT 1978 # Ulaanbaatar Time
d1912 1
a1912 1
# Choibalsan, a.k.a. Bajan Tümen, Bajan Tumen, Chojbalsan,
d1976 4
a1979 3
# "... The federal cabinet on Wednesday announced a new conservation plan to
# help reduce load shedding by approving the closure of commercial centres at
# 9pm and moving clocks forward by one hour for the next three months. ...."
d2026 2
a2027 2
# Pakistan clocks across the country would be turned back by an hour from
# October 1, 2009.
d2032 6
a2038 1
# From Steffen Thorsen (2009-09-29):
d2079 1
a2079 1
Rule Pakistan 2008 2009 - Nov 1 0:00 0 -
d2081 1
d2156 1
a2156 1
# http://www.jpost.com/com/Archive/22.Apr.1999/Opinion/Article-2.html
d2374 1
a2374 1
2:00 Palestine EE%sT 2008 Aug 29 0:00
d2377 1
a2377 1
2:00 - EET 2010 Mar 27 0:01
d2397 2
a2398 2
# http://www.staff.science.uu.nl/~gent0113/idl/idl_philippines.htm
# The rest of the data entries are from Shanks & Pottenger.
d2400 7
a2412 8
# From Paul Eggert (2014-08-14):
# The following source says DST may be instituted November-January and again
# March-June, but this is not definite. It also says DST was last proclaimed
# during the Ramos administration (1992-1998); but again, no details.
# Carcamo D. PNoy urged to declare use of daylight saving time.
# Philippine Star 2014-08-05
# http://www.philstar.com/headlines/2014/08/05/1354152/pnoy-urged-declare-use-daylight-saving-time
d2429 1
a2429 1
Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha
d2460 2
a2461 2
# taken from Mok Ly Yng (2003-10-30)
# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html
d2504 1
a2504 1
# http://today.reuters.co.uk/news/newsArticle.aspx?type=scienceNews&storyID=2006-04-12T172228Z_01_COL295762_RTRIDST_0_SCIENCE-SRILANKA-TIME-DC.XML
d2543 1
a2543 1
5:19:32 - MMT 1906 # Moratuwa Mean Time
d2546 4
a2549 4
5:30 1:00 IST 1945 Oct 16 2:00
5:30 - IST 1996 May 25 0:00
6:30 - LKT 1996 Oct 26 0:30
6:00 - LKT 2006 Apr 15 0:30
d2625 2
a2626 1
# this month (March 2008) in the last day or so....
d2713 1
a2713 1
Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq
d2721 3
a2723 3
6:00 RussiaAsia DUS%sT 1991 Mar 31 2:00s
5:00 1:00 DUSST 1991 Sep 9 2:00s
5:00 - TJT # Tajikistan Time
d2736 1
a2736 1
5:00 RussiaAsia ASH%sT 1991 Mar 31 2:00
d2738 1
a2738 1
4:00 RussiaAsia TM%sT 1992 Jan 19 2:00
a2746 1
# Byalokoz 1919 says Uzbekistan was 4:27:53.
d2748 1
a2748 1
Zone Asia/Samarkand 4:27:53 - LMT 1924 May 2
d2759 1
a2759 1
6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00
d2779 1
a2779 1
7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
@
1.1.1.3
log
@Import tzdata2014h from ftp://ftp.iana.org/tz/releases/tzdata2014h.tar.gz
Summary of changes in tzdata2014h (2014-09-25 18:59:03 -0700):
* America/Jamaica's 1974 spring-forward transition was Jan. 6, not Apr. 28.
* Shanks says Asia/Novokuznetsk switched from LMT (not "NMT") on 1924-05-01,
not 1920-01-06.
* Some more zones have been turned into links, when they differed
from existing zones only for older time stamps. As usual,
these changes affect UTC offsets in pre-1970 time stamps only.
Their old contents have been moved to the 'backzone' file.
The affected zones are: Africa/Blantyre, Africa/Bujumbura,
Africa/Gaborone, Africa/Harare, Africa/Kigali, Africa/Lubumbashi,
Africa/Lusaka, Africa/Maseru, and Africa/Mbabane.
* Changes affecting documentation and commentary.
@
text
@a895 4
# From Paul Eggert (2014-09-06):
# The 1876 Report of the Secretary of the [US] Navy, p 306 says that Batavia
# civil time was 7:07:12.5; round to even for Jakarta.
#
@
1.1.1.4
log
@Import tzdata2014i from ftp://ftp.iana.org/tz/releases/tzdata2014i.tar.gz
Summary of changes in tzdata2014i (2014-10-21 22:04:57 -0700):
* Pacific/Fiji will observe DST from 2014-11-02 02:00 to 2015-01-18 03:00.
Guess that future years will use a similar pattern.
* A new Zone Pacific/Bougainville, for the part of Papua New Guinea
that plans to switch from UTC+10 to UTC+11 on 2014-12-28 at 02:00.
* Since Belarus is not changing its clocks even though Moscow is,
the time zone abbreviation in Europe/Minsk is changing from FET
to its more-traditional value MSK on 2014-10-26 at 01:00.
* The new abbreviation IDT stands for the pre-1976 use of UT+8 in
Indochina, to distinguish it better from ICT (UT+7).
* Many time stamps have been corrected for Asia/Ho_Chi_Minh before 1976.
Asia/Ho_Chi_Minh has been added to zone1970.tab, since
north and south Vietnam disagreed after our 1970 cutoff.
* Asia/Phnom_Penh and Asia/Vientiane have been turned into links, as
they differed from existing zones only for pre-1970 time stamps.
* Changes affecting commentary.
@
text
@d50 1
a50 1
# 7:00 ICT Indochina, most times and locations*
a53 1
# 8:00 IDT Indochina, 1943-45, 1947-55, 1960-75 (some locations)*
d274 6
a279 2
# See Asia/Bangkok.
d1717 6
a1722 2
# See Asia/Bangkok.
a2734 2
Link Asia/Bangkok Asia/Phnom_Penh # Cambodia
Link Asia/Bangkok Asia/Vientiane # Laos
d2772 1
a2772 1
# From Paul Eggert (2014-10-04):
d2776 1
a2776 1
# and Pottenger for LMT before 1906.
d2782 6
a2787 49
# From Paul Eggert (2014-10-21) after a heads-up from Trần Ngọc Quân:
# Trần Tiến Bình's authoritative book "Lịch Việt Nam: thế kỷ XX-XXI (1901-2100)"
# (Nhà xuất bản Văn Hoá - Thông Tin, Hanoi, 2005), pp 49-50,
# is quoted verbatim in:
# http://www.thoigian.com.vn/?mPage=P80D01
# is translated by Brian Inglis in:
# http://mm.icann.org/pipermail/tz/2014-October/021654.html
# and is the basis for the information below.
#
# The 1906 transition was effective July 1 and standardized Indochina to
# Phù Liễn Observatory, legally 104 deg. 17'17" east of Paris.
# It's unclear whether this meant legal Paris Mean Time (00:09:21) or
# the Paris Meridian (2 deg. 20'14.03" E); the former yields 07:06:30.1333...
# and the latter 07:06:29.333... so either way it rounds to 07:06:30,
# which is used below even though the modern-day Phù Liễn Observatory
# is closer to 07:06:31. Abbreviate Phù Liễn Mean Time as PLMT.
#
# The following transitions occurred in Indochina in general (before 1954)
# and in South Vietnam in particular (after 1954):
# To 07:00 on 1911-05-01.
# To 08:00 on 1942-12-31 at 23:00.
# To 09:00 in 1945-03-14 at 23:00.
# To 07:00 on 1945-09-02 in Vietnam.
# To 08:00 on 1947-04-01 in French-controlled Indochina.
# To 07:00 on 1955-07-01 in South Vietnam.
# To 08:00 on 1959-12-31 at 23:00 in South Vietnam.
# To 07:00 on 1975-06-13 in South Vietnam.
#
# Trần cites the following sources; it's unclear which supplied the info above.
#
# Hoàng Xuân Hãn: "Lịch và lịch Việt Nam". Tập san Khoa học Xã hội,
# No. 9, Paris, February 1982.
#
# Lê Thành Lân: "Lịch và niên biểu lịch sử hai mươi thế kỷ (0001-2010)",
# NXB Thống kê, Hanoi, 2000.
#
# Lê Thành Lân: "Lịch hai thế kỷ (1802-2010) và các lịch vĩnh cửu",
# NXB Thuận Hoá, Huế, 1995.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jul 1
7:06:30 - PLMT 1911 May 1
7:00 - ICT 1942 Dec 31 23:00
8:00 - IDT 1945 Mar 14 23:00
9:00 - JST 1945 Sep 2
7:00 - ICT 1947 Apr 1
8:00 - IDT 1955 Jul 1
7:00 - ICT 1959 Dec 31 23:00
8:00 - IDT 1975 Jun 13
@
1.1.1.5
log
@Import tzdata2014j from ftp://ftp.iana.org/tz/releases/tzdata2014j.tar.gz
Summary of changes in tzdata2014j (2014-11-10 17:37:11 -0800):
* Turks & Caicos' switch from US eastern time to UTC-4 year-round
did not occur on 2014-11-02 at 02:00.
* Many pre-1989 time stamps have been corrected for Asia/Seoul and
Asia/Pyongyang, based on sources for the Korean-language Wikipedia
entry for time in Korea.
* Some more zones have been turned into links, when they differed
from existing zones only for older (pre-1970) time stamps.
* Changes affecting commentary.
Summary of changes in tzdata2014i (2014-10-21 22:04:57 -0700):
* Pacific/Fiji will observe DST from 2014-11-02 02:00 to 2015-01-18 03:00.
* A new Zone Pacific/Bougainville, for the part of Papua New Guinea
that plans to switch from UTC+10 to UTC+11 on 2014-12-28 at 02:00.
* Since Belarus is not changing its clocks even though Moscow is,
the time zone abbreviation in Europe/Minsk is changing from FET
to its more-traditional value MSK on 2014-10-26 at 01:00.
* The new abbreviation IDT stands for the pre-1976 use of UT+8 in
Indochina, to distinguish it better from ICT (UT+7).
* Many time stamps have been corrected for Asia/Ho_Chi_Minh before 1976.
Asia/Ho_Chi_Minh has been added to zone1970.tab, to give tzselect
users in Vietnam two choices, since north and south Vietnam
disagreed after our 1970 cutoff.
* Asia/Phnom_Penh and Asia/Vientiane have been turned into links, as
they differed from existing zones only for older (pre-1970) time stamps.
* Changes affecting commentary.
@
text
@d9 1
a9 1
# From Paul Eggert (2014-10-31):
d11 1
a11 1
# Unless otherwise specified, the source for data through 1990 is:
a13 1
# Unfortunately this book contains many errors and cites no sources.
d19 4
a22 2
# of the IATA's data after 1990. Except where otherwise noted,
# IATA SSIM is the source for entries after 1990.
d1666 16
a1681 47
# http://www.koreaherald.com/view.php?ud=200607100012
# Korea ran a daylight saving program from 1949-61 but stopped it
# during the 1950-53 Korean War. The system was temporarily enforced
# between 1987 and 1988 ...
# From Sanghyuk Jung (2014-10-29):
# http://mm.icann.org/pipermail/tz/2014-October/021830.html
# According to the Korean Wikipedia
# http://ko.wikipedia.org/wiki/한국_표준시
# [oldid=12896437 2014-09-04 08:03 UTC]
# DST in Republic of Korea was as follows.... And I checked old
# newspapers in Korean, all articles correspond with data in Wikipedia.
# For example, the article in 1948 (Korean Language) proved that DST
# started at June 1 in that year. For another example, the article in
# 1988 said that DST started at 2:00 AM in that year.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule ROK 1948 only - Jun 1 0:00 1:00 D
Rule ROK 1948 only - Sep 13 0:00 0 S
Rule ROK 1949 only - Apr 3 0:00 1:00 D
Rule ROK 1949 1951 - Sep Sun>=8 0:00 0 S
Rule ROK 1950 only - Apr 1 0:00 1:00 D
Rule ROK 1951 only - May 6 0:00 1:00 D
Rule ROK 1955 only - May 5 0:00 1:00 D
Rule ROK 1955 only - Sep 9 0:00 0 S
Rule ROK 1956 only - May 20 0:00 1:00 D
Rule ROK 1956 only - Sep 30 0:00 0 S
Rule ROK 1957 1960 - May Sun>=1 0:00 1:00 D
Rule ROK 1957 1960 - Sep Sun>=18 0:00 0 S
Rule ROK 1987 1988 - May Sun>=8 2:00 1:00 D
Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S
# From Paul Eggert (2014-10-30):
# The Korean Wikipedia entry gives the following sources for UT offsets:
#
# 1908: Official Journal Article No. 3994 (Edict No. 5)
# 1912: Governor-General of Korea Official Gazette Issue No. 367
# (Announcement No. 338)
# 1954: Presidential Decree No. 876 (1954-03-17)
# 1961: Law No. 676 (1961-08-07)
# 1987: Law No. 3919 (1986-12-31)
#
# The Wikipedia entry also has confusing information about a change
# to UT+9 in April 1910, but then what would be the point of the later change
# to UT+9 on 1912-01-01? Omit the 1910 change for now.
#
# I guessed that time zone abbreviations through 1945 followed the same
a1683 2
#
# For Pyongyang we have no information; guess no changes since World War II.
d1686 4
a1689 2
Zone Asia/Seoul 8:27:52 - LMT 1908 Apr 1
8:30 - KST 1912 Jan 1
d1693 2
a1694 1
8:30 ROK K%sT 1961 Aug 10
d1696 4
a1699 2
Zone Asia/Pyongyang 8:23:00 - LMT 1908 Apr 1
8:30 - KST 1912 Jan 1
d1702 2
@
1.1.1.6
log
@Import tzdata2015a from ftp://ftp.iana.org/tz/releases/tzdata2015a.tar.gz
Summary of changes in tzdata2015a (2015-01-29 22:35:20 -0800):
* The Mexican state of Quintana Roo, represented by America/Cancun,
will shift from Central Time with DST to Eastern Time without DST
on 2015-02-01 at 02:00.
* Chile will not change clocks in April or thereafter; its new standard time
will be its old daylight saving time. This affects America/Santiago,
Pacific/Easter, and Antarctica/Palmer. (Thanks to Juan Correa.)
* New leap second 2015-06-30 23:59:60 UTC as per IERS Bulletin C 49.
* Iceland observed DST in 1919 and 1921, and its 1939 fallback
transition was Oct.
* Some more zones have been turned into links, when they differed
from existing zones only for older time stamps.
* Changes affecting commentary.
@
text
@d148 4
a151 1
# See Asia/Qatar.
d1734 3
a1736 1
# See Asia/Riyadh.
d1957 6
a1962 1
# See Asia/Dubai.
a2455 1
Link Asia/Qatar Asia/Bahrain
a2481 2
Link Asia/Riyadh Asia/Aden # Yemen
Link Asia/Riyadh Asia/Kuwait
a2769 1
Link Asia/Dubai Asia/Muscat # Oman
d2854 7
a2860 1
# See Asia/Riyadh.
@
1.1.1.7
log
@Import tzdata2015b from ftp://ftp.iana.org/tz/releases/tzdata2015b.tar.gz
Summary of changes in tzdata2015b (2015-03-19 23:28:11 -0700):
* Mongolia will start observing DST again in 2015, from the last
Saturday in March at 02:00 to the last Saturday in September at 00:00.
* Palestine will start DST on March 28, not March 27, in 2015.
* The 1982 zone shift in Pacific/Easter has been corrected, fixing a 2015a
regression.
* Some more zones have been turned into links, when they differed
from existing zones only for older time stamps.
* Correct the 1992-2010 DST abbreviation in Volgograd from "MSK" to "MSD".
* Changes affecting commentary.
@
text
@a1906 7
# From Ganbold Tsagaankhuu (2015-03-10):
# It seems like yesterday Mongolian Government meeting has concluded to use
# daylight saving time in Mongolia.... Starting at 2:00AM of last Saturday of
# March 2015, daylight saving time starts. And 00:00AM of last Saturday of
# September daylight saving time ends. Source:
# http://zasag.mn/news/view/8969
a1926 2
Rule Mongol 2015 max - Mar lastSat 2:00 1:00 S
Rule Mongol 2015 max - Sep lastSat 0:00 0 -
d2345 7
a2351 13
# From Steffen Thorsen (2015-03-03):
# Sources such as http://www.alquds.com/news/article/view/id/548257
# and http://www.raya.ps/ar/news/890705.html say Palestine areas will
# start DST on 2015-03-28 00:00 which is one day later than expected.
#
# From Paul Eggert (2015-03-03):
# http://www.timeanddate.com/time/change/west-bank/ramallah?year=2014
# says that the fall 2014 transition was Oct 23 at 24:00.
# For future dates, guess the last Friday in March at 24:00 through
# the first Friday on or after October 21 at 00:00. This is consistent with
# the predictions in today's editions of the following URLs:
# http://www.timeanddate.com/time/change/gaza-strip/gaza
# http://www.timeanddate.com/time/change/west-bank/hebron
d2377 1
a2377 1
Rule Palestine 2012 2014 - Mar lastThu 24:00 1:00 S
d2379 1
a2379 3
Rule Palestine 2013 only - Sep Fri>=21 0:00 0 -
Rule Palestine 2014 max - Oct Fri>=21 0:00 0 -
Rule Palestine 2015 max - Mar lastFri 24:00 1:00 S
@
1.1.1.8
log
@Import tzdata2015f from ftp://ftp.iana.org/tz/releases/tzdata2015f.tar.gz
Summary of changes in tzdata2015f (2015-08-10 18:06:56 -0700):
* North Korea switches to +0830 on 2015-08-15.
* Uruguay no longer observes DST.
* Moldova starts and ends DST at 00:00 UTC, not at 01:00 UTC.
* The two characters '%z' in a zone format now stand for the UTC
offset, e.g., '-07' for seven hours behind UTC and '+0530' for
five hours and thirty minutes ahead.
* Comments for America/Halifax and America/Glace_Bay have been improved.
* Data entries have been simplified for Atlantic/Canary, Europe/Simferopol,
Europe/Sofia, and Europe/Tallinn.
* Changes affecting documentation.
@
text
@d9 1
a9 1
# From Paul Eggert (2015-08-08):
d46 1
a46 1
# 3:30 IRST IRDT Iran*
a54 1
# 8:30 KST KDT Korea when at +0830*
d58 1
a58 1
# 9:00 KST KDT Korea when at +09
d1030 1
a1030 1
# Iran, Volume 63, No. 18242, dated Tuesday 1386/6/24
d1560 1
a1560 1
# From Kazakhstan Embassy's News Bulletin No. 11
a1713 11
# From Steffen Thorsen (2015-08-07):
# According to many news sources, North Korea is going to change to
# the 8:30 time zone on August 15, one example:
# http://www.bbc.com/news/world-asia-33815049
#
# From Paul Eggert (2015-08-07):
# No transition time is specified; assume 00:00.
# There is no common English-language abbreviation for this time zone.
# Use %z rather than invent one. We can't assume %z works everywhere yet,
# so for now substitute its output manually.
d1726 1
a1726 2
9:00 - KST 2015 Aug 15
8:30 - KST
@
1.1.1.9
log
@Import tzdata2016b from ftp://ftp.iana.org/tz/releases/tzdata2016b.tar.gz
Summary of changes in tzdata2016b (2016-03-12 17:30:14 -0800):
* New zones Europe/Astrakhan and Europe/Ulyanovsk for Astrakhan and
Ulyanovsk Oblasts, Russia, both of which will switch from +03 to +04 on
2016-03-27 at 02:00 local time.
* As a trial of a new system that needs less information to be made up,
the new zones use numeric time zone abbreviations like "+04"
instead of invented abbreviations like "ASTT".
* Haiti will not observe DST in 2016.
* Palestine's spring-forward transition on 2016-03-26 is at 01:00, not 00:00.
* Europe/Chisinau observed DST during 1990, and switched from +04 to
+03 at 1990-05-06 02:00, instead of switching from +03 to +02.
* 1991 abbreviations in Europe/Samara should be SAMT/SAMST, not
KUYT/KUYST.
* tzselect's diagnostics and checking, and checktab.awk's checking,
have been improved.
* tzcode now builds under MinGW.
* tzselect now tests Julian-date TZ settings more accurately.
* Comments in zone tables have been improved.
* tzselect again limits its menu comments so that menus fit on a
24x80 alphanumeric display.
* A new web page tz-how-to.html.
* In the Theory file, the description of possible time zone abbreviations in
tzdata has been cleaned up, as the old description was unclear and
inconsistent.
Summary of changes in tzdata2016a (2016-01-26 23:28:02 -0800):
* America/Cayman will not observe daylight saving this year after all.
* Asia/Chita switches from +0800 to +0900 on 2016-03-27 at 02:00.
* Asia/Tehran now has DST predictions for the year 2038 and later,
to be March 21 00:00 to September 21 00:00.
* America/Metlakatla switched from PST all year to AKST/AKDT on
2015-11-01 at 02:00.
* America/Santa_Isabel has been removed, and replaced with a
backward compatibility link to America/Tijuana.
* Asia/Karachi's two transition times in 2002 were off by a minute.
* Changes affecting documentation and commentary.
Summary of changes in tzdata2015g (2015-10-01 00:39:51 -0700):
* Turkey's 2015 fall-back transition is scheduled for Nov.
* Norfolk moves from +1130 to +1100 on 2015-10-04 at 02:00 local time.
* Fiji's 2016 fall-back transition is scheduled for January 17, not 24.
* Fort Nelson, British Columbia will not fall back on 2015-11-01.
* Norfolk observed DST from 1974-10-27 02:00 to 1975-03-02 02:00.
* Changes affecting documentation.
@
text
@d134 1
a134 2
# From Paul Eggert (2015-09-17): It was Resolution No. 21 (1997-03-17).
# http://code.az/files/daylight_res.pdf
a875 9
# From Ian P. Beacock, in "A brief history of (modern) time", The Atlantic
# http://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/
# (2015-12-22):
# In January 1906, several thousand cotton-mill workers rioted on the
# outskirts of Bombay.... They were protesting the proposed abolition of
# local time in favor of Indian Standard Time.... Journalists called this
# dispute the "Battle of the Clocks." It lasted nearly half a century.
d1086 2
a1087 9
#
# The following rules are approximations starting in the year 2038.
# These are the best post-2037 approximations available, given the
# restrictions of a single rule using a Gregorian-based data format.
# At some point this table will need to be extended, though quite
# possibly Iran will change the rules first.
Rule Iran 2036 max - Mar 21 0:00 1:00 D
Rule Iran 2036 max - Sep 21 0:00 0 S
d1720 2
a1721 4
# From Paul Eggert (2015-08-15):
# Bells rang out midnight (00:00) Friday as part of the celebrations. See:
# Talmadge E. North Korea celebrates new time zone, 'Pyongyang Time'
# http://news.yahoo.com/north-korea-celebrates-time-zone-pyongyang-time-164038128.html
d1723 2
a1724 1
# Use KST, as that's what we already use for 1954-1961 in ROK.
d1738 1
a1738 1
9:00 - KST 2015 Aug 15 00:00
d2112 2
a2113 2
Rule Pakistan 2002 only - Apr Sun>=2 0:00 1:00 S
Rule Pakistan 2002 only - Oct Sun>=2 0:00 0 -
a2380 10
# From Hannah Kreitem (2016-03-09):
# http://www.palestinecabinet.gov.ps/WebSite/ar/ViewDetails?ID=31728
# [Google translation]: "The Council also decided to start daylight
# saving in Palestine as of one o'clock on Saturday morning,
# 2016-03-26, to provide the clock 60 minutes ahead."
#
# From Paul Eggert (2016-03-12):
# Predict spring transitions on March's last Saturday at 01:00 from now on.
# Leave fall predictions alone for now.
d2409 1
a2409 2
Rule Palestine 2015 only - Mar lastFri 24:00 1:00 S
Rule Palestine 2016 max - Mar lastSat 1:00 1:00 S
@
1.1.1.10
log
@Import tzdata2016d from ftp://ftp.iana.org/tz/releases/tzdata2016d.tar.gz
Summary of changes in tzdata2016d (2016-04-17 22:50:29 -0700):
* America/Caracas switches from -0430 to -04 on 2016-05-01 at 02:30.
* Asia/Magadan switches from +10 to +11 on 2016-04-24 at 02:00.
* New zone Asia/Tomsk, split off from Asia/Novosibirsk.
* New zone Europe/Kirov, split off from Europe/Volgograd.
* Russia and nearby locations had daylight-saving transitions on
1992-03-29 at 02:00 and 1992-09-27 at 03:00, instead of on
1992-03-28 at 23:00 and 1992-09-26 at 23:00.
* Many corrections to historical time in Kazakhstan from 1991
through 2005.
* Mention Internet RFCs 7808 (TZDIST) and 7809 (CalDAV time zone references).
Summary of changes in tzdata2016c (2016-03-23 00:51:27 -0700):
* Azerbaijan no longer observes DST.
* Chile reverts from permanent to seasonal DST.
* Europe/Kaliningrad and Europe/Vilnius changed from +03/+04 to
+02/+03 on 1989-03-26, not 1991-03-31.
* Several updates and URLs for historical and proposed Russian changes.
@
text
@d82 7
a88 3
Rule RussiaAsia 1984 1995 - Sep lastSun 2:00s 0 -
Rule RussiaAsia 1985 2011 - Mar lastSun 2:00s 1:00 S
Rule RussiaAsia 1996 2011 - Oct lastSun 2:00s 0 -
d128 1
a128 1
4:00 RussiaAsia AM%sT 2012 Feb 9
a131 1
a135 8
# From Steffen Thorsen (2016-03-17):
# ... the Azerbaijani Cabinet of Ministers has cancelled switching to
# daylight saving time....
# http://www.azernews.az/azerbaijan/94137.html
# http://vestnikkavkaza.net/news/Azerbaijani-Cabinet-of-Ministers-cancels-daylight-saving-time.html
# http://en.apa.az/xeber_azerbaijan_abolishes_daylight_savings_ti_240862.html
d137 2
a138 2
Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 S
Rule Azer 1997 2015 - Oct lastSun 5:00 0 -
d1561 17
a1593 163
# From Stepan Golosunov (2016-03-27) ([*] means see later comments below):
# Review of the linked documents from http://adilet.zan.kz/
# produced the following data for post-1991 Kazakhstan:
#
# 0. Act of the Cabinet of Ministers of the USSR
# from 1991-02-04 No. 20
# http://pravo.gov.ru/proxy/ips/?docbody=&nd=102010545
# removed the extra hour ("decree time") on the territory of the USSR
# starting with the last Sunday of March 1991.
# It also allowed (but not mandated) Kazakh SSR, Kirghiz SSR, Tajik SSR,
# Turkmen SSR and Uzbek SSR to not have "summer" time.
#
# The 1992-01-13 act also refers to the act of the Cabinet of Ministers
# of the Kazakh SSR from 1991-03-20 No. 170 "About the act of the Cabinet
# of Ministers of the USSR from 1991-02-04 No. 20" but I didn't found its
# text.
#
# According to Izvestia newspaper No. 68 (23334) from 1991-03-20
# (page 6; available at http://libinfo.org/newsr/newsr2574.djvu via
# http://libinfo.org/index.php?id=58564) on 1991-03-31 at 2:00 during
# transition to "summer" time:
# Republic of Georgia, Latvian SSR, Lithuanian SSR, SSR Moldova,
# Estonian SSR; Komi ASSR; Kaliningrad oblast; Nenets autonomous okrug
# were to move clocks 1 hour forward.
# Kazakh SSR (excluding Uralsk oblast); Republic of Kyrgyzstan, Tajik
# SSR; Andijan, Jizzakh, Namangan, Sirdarya, Tashkent, Fergana oblasts
# of the Uzbek SSR were to move clocks 1 hour backwards.
# Other territories were to not move clocks.
# When the "summer" time would end on 1991-09-29, clocks were to be
# moved 1 hour backwards on the territory of the USSR excluding
# Kazakhstan, Kirghizia, Uzbekistan, Turkmenia, Tajikistan.
#
# Apparently there were last minute changes. Apparently Kazakh act No. 170
# was one of such changes.
#
# https://ru.wikipedia.org/wiki/Декретное время
# claims that Sovetskaya Rossiya newspaper on 1991-03-29 published that
# Nenets autonomous okrug, Komi and Kazakhstan (excluding Uralsk oblast)
# were to not move clocks and Uralsk oblast was to move clocks
# forward; on 1991-09-29 Kazakhstan was to move clocks backwards.
# (Probably there were changes even after that publication. There is an
# article claiming that Kaliningrad oblast decided on 1991-03-29 to not
# move clocks.)
#
# This implies that on 1991-03-31 Asia/Oral remained on +04/+05 while
# the rest of Kazakhstan switched from +06/+07 to +05/06 or from +05/06
# to +04/+05. It's unclear how Kzyl-Orda oblast moved into the fifth
# time belt. (By switching from +04/+05 to +05/+06 on 1991-09-29?) ...
#
# 1. Act of the Cabinet of Ministers of the Republic of Kazakhstan
# from 1992-01-13 No. 28
# http://adilet.zan.kz/rus/docs/P920000028_
# (text includes modification from the 1996 act)
# introduced new rules for calculation of time, mirroring Russian
# 1992-01-08 act. It specified that time would be calculated
# according to time belts plus extra hour ("decree time"), moved clocks
# on the whole territory of Kazakhstan 1 hour forward on 1992-01-19 at
# 2:00, specified DST rules. It acknowledged that Kazakhstan was
# located in the fourth and the fifth time belts and specified the
# border between them to be located east of Kustanay and Aktyubinsk
# oblasts (notably including Turgai and Kzyl-Orda oblasts into the fifth
# time belt).
#
# This means switch on 1992-01-19 at 2:00 from +04/+05 to +05/+06 for
# Asia/Aqtau, Asia/Aqtobe, Asia/Oral, Atyrau and Kustanay oblasts; from
# +05/+06 to +06/+07 for Asia/Almaty and Asia/Qyzylorda (and Arkalyk) [*]....
#
# 2. Act of the Cabinet of Ministers of the Republic of Kazakhstan
# from 1992-03-27 No. 284
# http://adilet.zan.kz/rus/docs/P920000284_
# cancels extra hour ("decree time") for Uralsk and Kzyl-Orda oblasts
# since the last Sunday of March 1992, while keeping them in the fourth
# and the fifth time belts respectively.
#
# 3. Order of the Prime Minister of the Republic of Kazakhstan
# from 1994-09-23 No. 384
# http://adilet.zan.kz/rus/docs/R940000384_
# cancels the extra hour ("decree time") on the territory of Mangystau
# oblast since the last Sunday of September 1994 (saying that time on
# the territory would correspond to the third time belt as a
# result)....
#
# 4. Act of the Government of the Republic of Kazakhstan
# from 1996-05-08 No. 575
# http://adilet.zan.kz/rus/docs/P960000575_
# amends the 1992-01-13 act to end summer time in October instead
# of September, mirroring identical Russian change from 1996-04-23 act.
#
# 5. Act of the Government of the Republic of Kazakhstan
# from 1999-03-26 No. 305
# http://adilet.zan.kz/rus/docs/P990000305_
# cancels the extra hour ("decree time") for Atyrau oblast since the
# last Sunday of March 1999 while retaining the oblast in the fourth
# time belt.
#
# This means change from +05/+06 to +04/+05.
#
# There is no zone for Atyrau currently (listed under Asia/Aqtau in
# zone1970.tab).[*]
#
# 6. Act of the Government of the Republic of Kazakhstan
# from 2000-11-23 No. 1749
# http://adilet.zan.kz/rus/archive/docs/P000001749_/23.11.2000
# replaces the previous five documents.
#
# The only changes I noticed are in definition of the border between the
# fourth and the fifth time belts. They account for changes in spelling
# and administrative division (splitting of Turgai oblast in 1997
# probably changed time in territories incorporated into Kostanay oblast
# (including Arkalyk) from +06/+07 to +05/+06) and move Kyzylorda oblast
# from being in the fifth time belt and not using decree time into the
# fourth time belt (no change in practice).[*]
#
# 7. Act of the Government of the Republic of Kazakhstan
# from 2003-12-29 No. 1342
# http://adilet.zan.kz/rus/docs/P030001342_
# modified the 2000-11-23 act. No relevant changes, apparently.
#
# 8. Act of the Government of the Republic of Kazakhstan
# from 2004-07-20 No. 775
# http://adilet.zan.kz/rus/archive/docs/P040000775_/20.07.2004
# modified the 2000-11-23 act to move Kostanay and Kyzylorda oblasts into
# the fifth time belt and add Aktobe oblast to the list of regions not
# using extra hour ("decree time"), leaving Kazakhstan with only 2 time
# zones (+04/+05 and +06/+07). The changes were to be implemented
# during DST transitions in 2004 and 2005 but the acts got radically
# amended before implementation happened.
#
# 9. Act of the Government of the Republic of Kazakhstan
# from 2004-09-15 No. 1059
# http://adilet.zan.kz/rus/docs/P040001059_
# modified the 2000-11-23 act to remove exceptions from the "decree time"
# (leaving Kazakhstan in +05/+06 and +06/+07 zones), amended the
# 2004-07-20 act to implement changes for Atyrau, West Kazakhstan,
# Kostanay, Kyzylorda and Mangystau oblasts by not moving clocks
# during the 2014 transition to "winter" time.
#
# This means transition from +04/+05 to +05/+06 for Atyrau oblast (no
# zone currently), Asia/Oral, Asia/Aqtau and transition from +05/+06 to
# +06/+07 for Kostanay oblast (Kostanay and Arkalyk, no zones currently)
# and Asia/Qyzylorda on 2004-10-31 at 3:00....[*]
#
# 10. Act of the Government of the Republic of Kazakhstan
# from 2005-03-15 No. 231
# http://adilet.zan.kz/rus/docs/P050000231_
# removes DST provisions from the 2000-11-23 act, removes most of the
# (already implemented) provisions from the 2004-07-20 and 2004-09-15
# acts, comes into effect 10 days after official publication.
# The only practical effect seems to be the abolition of the summer
# time.
#
# Unamended version of the act of the Government of the Russian Federation
# No. 23 from 1992-01-08 [See 'europe' file for details].
# Kazakh 1992-01-13 act appears to provide the same rules and 1992-03-27
# act was to be enacted on the last Sunday of March 1992.
# From Paul Eggert (2016-04-15):
# The tables below should reflect Stepan Golosunov's remarks above,
# except for the items marked "[*]" which I haven't gotten to yet.
# It looks like we will need new zones Asia/Atyrau and Asia/Qostanay
# to handle changes from 1992 through 2004 that we did not previously
# know about.
a1597 2
# This includes KZ-AKM, KZ-ALA, KZ-ALM, KZ-AST, KZ-BAY, KZ-VOS, KZ-ZHA,
# KZ-KAR, KZ-SEV, KZ-PAV, and KZ-YUZ.
d1599 6
a1604 6
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s
6:00 RussiaAsia +06/+07 2004 Oct 31 2:00s
6:00 - +06
# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-KZY)
d1606 10
a1615 11
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1991 Sep 29 2:00s
5:00 RussiaAsia +05/+06 1992 Jan 19 2:00s
6:00 RussiaAsia +06/+07 1992 Mar 29 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
6:00 - +06
# Aqtobe (aka Aktobe, formerly Aktyubinsk) (KZ-AKT)
d1617 9
a1625 11
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
5:00 - +05
# Qostanay (KZ-KUS)
# Mangghystau (KZ-MAN)
d1629 10
a1638 13
4:00 - +04 1930 Jun 21
5:00 - +05 1963
5:00 - +05 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 1994 Sep 25 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
# West Kazakhstan (KZ-ZAP)
# From Paul Eggert (2016-03-18):
# The 1989 transition is from USSR act No. 227 (1989-03-14).
d1640 9
a1648 9
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1989 Mar 26 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 1992 Mar 29 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
@
1.1.1.10.2.1
log
@Sync with HEAD
@
text
@d119 7
a125 5
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1995 Sep 24 2:00s
4:00 - +04 1997
4:00 RussiaAsia +04/+05
d146 7
a152 6
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1992 Sep lastSun 2:00s
4:00 - +04 1996
4:00 EUAsia +04/+05 1997
4:00 Azer +04/+05
d271 1
a271 1
Zone Asia/Yangon 6:24:40 - LMT 1880 # or Rangoon
d386 1
a386 1
# Xujiahui Observatory was under French control and stuck with UT +08.
d395 1
a395 1
# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) UT +08:30
d399 1
a399 1
# Zhongyuan Time ("Central plain Time") UT +08
d405 1
a405 1
# Guo says Shanghai switched to UT +08 "from the end of the 19th century".
d407 1
a407 1
# Long-shu Time (probably due to Long and Shu being two names of the area) UT +07
d414 1
a414 1
# Xin-zang Time ("Xinjiang-Tibet Time") UT +06
d427 1
a427 1
# Kunlun Time UT +05:30
d443 1
a443 1
# hours behind Beijing time, or UT +06. The government of the Xinjiang
d499 2
a500 2
# In the early days of the PRC, Tibet was given its own time zone (UT +06)
# but this was withdrawn in 1959 and never reinstated; see Tubten Khétsun,
d514 1
a514 1
# UT +06 at the start of 1928, the year of accession of the warlord Jin Shuren,
d516 2
a517 2
# guess) as the transition from LMT. Ignore the usage of +08 before
# 1986-02-01 under the theory that the transition date to +08 is unknown and
d519 1
a519 1
# +08 mandate back then.
d724 1
a724 1
# As per Yu-Cheng Chuang, say that Taiwan was at UT +09 from 1937-10-01
d777 1
a777 1
d779 1
a779 11
# IATA SSIM (1998-09) has Cyprus using EU rules for the first time.
# From Paul Eggert (2016-09-09):
# Yesterday's Cyprus Mail reports that Northern Cyprus followed Turkey's
# lead and switched from +02/+03 to +03 year-round.
# http://cyprus-mail.com/2016/09/08/two-time-zones-cyprus-turkey-will-not-turn-clocks-back-next-month/
#
# From Even Scharning (2016-10-31):
# Looks like the time zone split in Cyprus went through last night.
# http://cyprus-mail.com/2016/10/30/cyprus-new-division-two-time-zones-now-reality/
d794 1
a794 4
Zone Asia/Famagusta 2:15:48 - LMT 1921 Nov 14
2:00 Cyprus EE%sT 1998 Sep
2:00 EUAsia EE%sT 2016 Sep 8
3:00 - +03
d838 10
a847 9
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1992
3:00 E-EurAsia +03/+04 1994 Sep lastSun
4:00 E-EurAsia +04/+05 1996 Oct lastSun
4:00 1:00 +05 1997 Mar lastSun
4:00 E-EurAsia +04/+05 2004 Jun 27
3:00 RussiaAsia +03/+04 2005 Mar lastSun 2:00
4:00 - +04
d924 1
a924 1
# from UT +09 to +07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura
d935 1
a935 1
# The time zone abbreviations and UT offsets are:
d937 3
a939 3
# WIB - +07 - Waktu Indonesia Barat (Indonesia western time)
# WITA - +08 - Waktu Indonesia Tengah (Indonesia central time)
# WIT - +09 - Waktu Indonesia Timur (Indonesia eastern time)
d1828 5
a1832 5
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 RussiaAsia +05/+06 1991 Aug 31 2:00
5:00 Kyrgyz +05/+06 2005 Aug 12
6:00 - +06
d1871 1
a1871 1
# From Paul Eggert (2016-08-23):
d1874 1
a1874 1
# 1908: Official Journal Article No. 3994 (decree No. 5)
d1879 1
d1881 3
a1883 2
# (Another source "1987: Law No. 3919 (1986-12-31)" was in the 2014-10-30
# edition of the Korean Wikipedia entry.)
d1889 1
a1889 2
# For Pyongyang, guess no changes from World War II until 2015, as we
# have no information otherwise.
d2049 1
a2049 1
# travelmongolia.org says there are two time zones (UT +07, +08) with no DST.
d2552 5
d2566 1
a2566 15
# From Sharef Mustafa (2016-10-19):
# [T]he Palestinian cabinet decision (Mar 8th 2016) published on
# http://www.palestinecabinet.gov.ps/WebSite/Upload/Decree/GOV_17/16032016134830.pdf
# states that summer time will end on Oct 29th at 01:00.
#
# From Tim Parenti (2016-10-19):
# Predict fall transitions on October's last Saturday at 01:00 from now on.
# This is consistent with the 2016 transition as well as our spring
# predictions.
#
# From Paul Eggert (2016-10-19):
# It's also consistent with predictions in the following URLs today:
# http://www.timeanddate.com/time/change/gaza-strip/gaza
# http://www.timeanddate.com/time/change/west-bank/hebron
d2595 1
a2595 1
Rule Palestine 2014 2015 - Oct Fri>=21 0:00 0 -
a2597 1
Rule Palestine 2016 max - Oct lastSat 1:00 0 -
d2685 1
a2685 1
# time zones; the other zone, at UT +04, was in the far eastern part of
d2747 28
a2774 14
# From Sadika Sumanapala (2016-10-19):
# According to http://www.sltime.org (maintained by Measurement Units,
# Standards & Services Department, Sri Lanka) abbreviation for Sri Lanka
# standard time is SLST.
#
# From Paul Eggert (2016-10-18):
# "SLST" seems to be reasonably recent and rarely-used outside time
# zone nerd sources. I searched Google News and found three uses of
# it in the International Business Times of India in February and
# March of this year when discussing cricket match times, but nothing
# since then (though there has been a lot of cricket) and nothing in
# other English-language news sources. Our old abbreviation "LKT" is
# even worse. For now, let's use a numeric abbreviation; we can
# switch to "SLST" if it catches on.
d2779 7
a2785 7
5:30 - +0530 1942 Jan 5
5:30 0:30 +0530/+06 1942 Sep
5:30 1:00 +0530/+0630 1945 Oct 16 2:00
5:30 - +0530 1996 May 25 0:00
6:30 - +0630 1996 Oct 26 0:30
6:00 - +06 2006 Apr 15 0:30
5:30 - +0530
d2954 4
a2957 4
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 1:00 +05/+06 1991 Sep 9 2:00s
5:00 - +05
d2971 5
a2975 4
4:00 - +04 1930 Jun 21
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00
5:00 - +05
d2987 7
a2993 6
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1992
5:00 - +05
d2996 5
a3000 4
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00
5:00 RussiaAsia +05/+06 1992
5:00 - +05
@
1.1.1.10.2.2
log
@Sync with HEAD. (Note that most of these changes are simply $NetBSD$
tag issues.)
@
text
@d1586 2
a1587 2
# same), encompassing four provinces in the west: Aqtöbe, Atyraū,
# Mangghystaū, and West Kazakhstan. The other zone encompasses
d1591 1
a1591 1
# From Stepan Golosunov (2016-03-27):
d1637 1
a1637 1
# to +04/+05. It's unclear how Qyzylorda oblast moved into the fifth
d1650 2
a1651 2
# border between them to be located east of Qostanay and Aktyubinsk
# oblasts (notably including Turgai and Qyzylorda oblasts into the fifth
d1655 2
a1656 2
# Asia/Aqtau, Asia/Aqtobe, Asia/Oral, Atyraū and Qostanay oblasts; from
# +05/+06 to +06/+07 for Asia/Almaty and Asia/Qyzylorda (and Arkalyk)....
d1661 1
a1661 1
# cancels extra hour ("decree time") for Uralsk and Qyzylorda oblasts
d1668 1
a1668 1
# cancels the extra hour ("decree time") on the territory of Mangghystaū
d1682 1
a1682 1
# cancels the extra hour ("decree time") for Atyraū oblast since the
d1686 4
a1689 1
# This means change from +05/+06 to +04/+05....
d1699 2
a1700 2
# probably changed time in territories incorporated into Qostanay oblast
# (including Arkalyk) from +06/+07 to +05/+06) and move Qyzylorda oblast
d1702 1
a1702 1
# fourth time belt (no change in practice).
d1712 1
a1712 1
# modified the 2000-11-23 act to move Qostanay and Qyzylorda oblasts into
d1724 3
a1726 3
# 2004-07-20 act to implement changes for Atyraū, West Kazakhstan,
# Qostanay, Qyzylorda and Mangghystaū oblasts by not moving clocks
# during the 2004 transition to "winter" time.
d1728 1
a1728 1
# This means transition from +04/+05 to +05/+06 for Atyraū oblast (no
d1730 2
a1731 2
# +06/+07 for Qostanay oblast (Qostanay and Arkalyk, no zones currently)
# and Asia/Qyzylorda on 2004-10-31 at 3:00....
d1747 6
a1752 2
# From Paul Eggert (2016-11-07):
# The tables below reflect Golosunov's remarks, with exceptions as noted.
d1754 1
a1766 2
# This currently includes Qostanay (aka Kostanay, Kustanay) (KZ-KUS);
# see comments below.
d1778 1
a1778 15
# The following zone is like Asia/Qyzylorda except for being one
# hour earlier from 1991-09-29 to 1992-03-29. The 1991/2 rules for
# Qostenay are unclear partly because of the 1997 Turgai
# reorganization, so this zone is commented out for now.
#Zone Asia/Qostanay 4:14:20 - LMT 1924 May 2
# 4:00 - +04 1930 Jun 21
# 5:00 - +05 1981 Apr 1
# 5:00 1:00 +06 1981 Oct 1
# 6:00 - +06 1982 Apr 1
# 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
# 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
# 5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
# 6:00 - +06
#
# Aqtöbe (aka Aktobe, formerly Aktyubinsk) (KZ-AKT)
d1788 3
a1790 1
# Mangghystaū (KZ-MAN)
d1795 1
d1803 1
a1803 11
# Atyraū (KZ-ATY) is like Mangghystaū except it switched from
# +04/+05 to +05/+06 in spring 1999, not fall 1994.
Zone Asia/Atyrau 3:27:44 - LMT 1924 May 2
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 1999 Mar 28 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
d2619 1
a2619 1
2:00 Zion EET/EEST 1948 May 15
d2632 1
a2632 1
2:00 Zion EET/EEST 1948 May 15
@
1.1.1.10.2.3
log
@Sync with HEAD
@
text
@d9 1
a9 1
# From Paul Eggert (2017-01-13):
d16 2
a17 2
# Many years ago Gwillim Law wrote that a good source
# for time zone data was the International Air Transport
d38 3
a40 1
# The following alphabetic abbreviations appear in these tables:
d45 3
d49 1
d53 4
a56 1
# 8:30 KST KDT Korea when at +0830
a60 4
# Otherwise, these tables typically use numeric abbreviations like +03
# and +0330 for integer hour and minute UTC offsets. Although earlier
# editions invented alphabetic time zone abbreviations for every
# offset, this did not reflect common practice.
d68 1
a68 1
# Worldwide Edition).
d89 2
a90 2
4:00 - +04 1945
4:30 - +0430
d233 6
a238 5
6:30 - +0630 1942 May 15
5:30 - +0530 1942 Sep
6:30 - +0630 1951 Sep 30
6:00 - +06 2009
6:00 Dhaka +06/+07
d243 2
a244 2
5:30 - +0530 1987 Oct
6:00 - +06
d254 2
a255 2
5:00 - +05 1996
6:00 - +06
d260 2
a261 2
7:30 - +0730 1933
8:00 - +08
d270 3
a272 3
6:30 - +0630 1942 May
9:00 - +09 1945 May 3
6:30 - +0630
d335 1
a335 1
# From Paul Eggert (2017-01-05):
d393 1
a393 1
# Now part of Asia/Shanghai; its pre-1970 times are not recorded here.
d397 1
a397 1
# Now part of Asia/Shanghai.
d399 2
d404 2
a405 2
# Long-shu Time (probably as Long and Shu were two names of the area) UT +07
# Now part of Asia/Shanghai; its pre-1970 times are not recorded here.
d407 1
a407 1
# most of Gansu; west Inner Mongolia; east Qinghai; and the Guangdong
d412 3
a414 3
# This region is now part of either Asia/Urumqi or Asia/Shanghai with
# current boundaries uncertain; times before 1970 for areas that
# disagree with Ürümqi or Shanghai are not recorded here.
d425 1
a425 1
# This region is now in the same status as Xin-zang Time (see above).
d526 1
a526 1
6:00 - +06
d745 1
a745 1
8:00 - CST 1937 Oct 1
d751 14
a764 14
Rule Macau 1961 1962 - Mar Sun>=16 3:30 1:00 D
Rule Macau 1961 1964 - Nov Sun>=1 3:30 0 S
Rule Macau 1963 only - Mar Sun>=16 0:00 1:00 D
Rule Macau 1964 only - Mar Sun>=16 3:30 1:00 D
Rule Macau 1965 only - Mar Sun>=16 0:00 1:00 D
Rule Macau 1965 only - Oct 31 0:00 0 S
Rule Macau 1966 1971 - Apr Sun>=16 3:30 1:00 D
Rule Macau 1966 1971 - Oct Sun>=16 3:30 0 S
Rule Macau 1972 1974 - Apr Sun>=15 0:00 1:00 D
Rule Macau 1972 1973 - Oct Sun>=15 0:00 0 S
Rule Macau 1974 1977 - Oct Sun>=15 3:30 0 S
Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 D
Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 D
Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 S
d767 2
a768 1
8:00 Macau C%sT
d884 5
a888 4
8:00 - +08 1942 Feb 21 23:00
9:00 - +09 1976 May 3
8:00 - +08 2000 Sep 17 0:00
9:00 - +09
d903 1
a903 1
6:30 - +0630 1942 May 15
d905 1
a905 1
5:30 1:00 +0630 1945 Oct 15
d956 6
a961 6
7:20 - +0720 1932 Nov
7:30 - +0730 1942 Mar 23
9:00 - +09 1945 Sep 23
7:30 - +0730 1948 May
8:00 - +08 1950 May
7:30 - +0730 1964
d966 5
a970 5
7:30 - +0730 1942 Jan 29
9:00 - +09 1945 Sep 23
7:30 - +0730 1948 May
8:00 - +08 1950 May
7:30 - +0730 1964
d976 2
a977 2
8:00 - +08 1942 Feb 9
9:00 - +09 1945 Sep 23
d981 2
a982 2
9:00 - +09 1944 Sep 1
9:30 - +0930 1964
d1014 2
d1122 3
a1124 3
3:30 - +0330 1977 Nov
4:00 Iran +04/+05 1979
3:30 Iran +0330/+0430
d1167 2
a1168 2
3:00 - +03 1982 May
3:00 Iraq +03/+04
d1467 2
d1744 1
a1744 17
# From Stepan Golosunov (2016-11-08):
# Turgai reorganization should affect only southern part of Qostanay
# oblast. Which should probably be separated into Asia/Arkalyk zone.
# (There were also 1970, 1988 and 1990 Turgai oblast reorganizations
# according to wikipedia.)
#
# [For Qostanay] http://www.ng.kz/gazeta/195/hranit/
# suggests that clocks were to be moved 40 minutes backwards on
# 1920-01-01 to the fourth time belt. But I do not understand
# how that could happen....
#
# [For Atyrau and Oral] 1919 decree
# (http://www.worldtimezone.com/dst_news/dst_news_russia-1919-02-08.html
# and in Byalokoz) lists Ural river (plus 10 versts on its left bank) in
# the third time belt (before 1930 this means +03).
# From Paul Eggert (2016-12-06):
d1774 1
a1774 1
# Qostanay are unclear partly because of the 1997 Turgai
d1811 1
a1811 1
3:00 - +03 1930 Jun 21
d1823 1
a1823 1
3:00 - +03 1930 Jun 21
d1929 1
d1936 1
d1991 7
a1997 7
7:00 - +07 1933 Jan 1
7:00 0:20 +0720 1936 Jan 1
7:20 - +0720 1941 Sep 1
7:30 - +0730 1942 Feb 16
9:00 - +09 1945 Sep 12
7:30 - +0730 1982 Jan 1
8:00 - +08
d2004 5
a2008 4
7:30 - +0730 1933
8:00 NBorneo +08/+0820 1942 Feb 16
9:00 - +09 1945 Sep 12
8:00 - +08
d2014 1
a2014 1
5:00 - +05
a2140 4
# From Ganbold Tsagaankhuu (2017-02-09):
# Mongolian Government meeting has concluded today to cancel daylight
# saving time adoption in Mongolia. Source: http://zasag.mn/news/view/16192
d2147 2
a2148 2
Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 S
Rule Mongol 2015 2016 - Sep lastSat 0:00 0 -
d2153 2
a2154 2
6:00 - +06 1978
7:00 Mongol +07/+08
d2157 2
a2158 2
7:00 - +07 1978
8:00 Mongol +08/+09
d2162 4
a2165 4
7:00 - +07 1978
8:00 - +08 1983 Apr
9:00 Mongol +09/+10 2008 Mar 31
8:00 Mongol +08/+09
d2170 2
a2171 2
5:30 - +0530 1986
5:45 - +0545
d2320 4
a2323 4
5:30 - +0530 1942 Sep
5:30 1:00 +0630 1945 Oct 15
5:30 - +0530 1951 Sep 30
5:00 - +05 1971 Mar 26
d2688 3
a2690 3
8:00 Phil +08/+09 1942 May
9:00 - +09 1944 Nov
8:00 Phil +08/+09
d2695 2
a2696 2
4:00 - +04 1972 Jun
3:00 - +03
d2723 1
a2723 1
3:00 - +03
d2733 8
a2740 7
7:00 - +07 1933 Jan 1
7:00 0:20 +0720 1936 Jan 1
7:20 - +0720 1941 Sep 1
7:30 - +0730 1942 Feb 16
9:00 - +09 1945 Sep 12
7:30 - +0730 1982 Jan 1
8:00 - +08
d2799 2
a2800 2
5:30 0:30 +06 1942 Sep
5:30 1:00 +0630 1945 Oct 16 2:00
d2982 1
a2982 1
7:00 - +07
d2998 1
a2998 1
4:00 - +04
d3071 9
a3079 9
7:06:30 - PLMT 1911 May 1 # Phù Liễn MT
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 2
7:00 - +07 1947 Apr 1
8:00 - +08 1955 Jul 1
7:00 - +07 1959 Dec 31 23:00
8:00 - +08 1975 Jun 13
7:00 - +07
@
1.1.1.11
log
@Import tzdata2016f from ftp://ftp.iana.org/tz/releases/tzdata2016f.tar.gz
Summary of changes in tzdata2016f (2016-07-05 16:26:51 +0200):
* The Egyptian government changed its mind on short notice, and
Africa/Cairo will not introduce DST starting 2016-07-07 after all.
* Asia/Novosibirsk switches from +06 to +07 on 2016-07-24 at 02:00.
* Asia/Novokuznetsk and Asia/Novosibirsk now use numeric time zone
abbreviations instead of invented ones.
* Europe/Minsk's 1992-03-29 spring-forward transition was at 02:00 not 00:00.
Summary of changes in tzdata2016e (2016-06-14 08:46:16 -0700):
* Africa/Cairo observes DST in 2016 from July 7 to the end of October.
(change obsoleted by 2016f)
* Locations while uninhabited now use '-00', not 'zzz', as a
placeholder time zone abbreviation.
* Asia/Baku's 1992-09-27 transition from +04 (DST) to +04 (non-DST) was
at 03:00, not 23:00 the previous day.
* zic now outputs a dummy transition at time 2**31 - 1 in zones
whose POSIX-style TZ strings contain a '<'.
* Changes affecting documentation and commentary.
@
text
@d149 1
a149 1
3:00 RussiaAsia AZ%sT 1992 Sep lastSun 2:00s
@
1.1.1.12
log
@Import tzdata2016g from ftp://ftp.iana.org/tz/releases/tzdata2016g.tar.gz
Summary of changes in tzdata2016g (2016-09-13 08:56:38 -0700):
Timezone switch in Turkey (summer time becomes standard time)
Transition time corrections for historic timestamps in
America/Los_Angeles
zones using USSR rules in early 20th century
Some (more) time zone abbreviations converted to numeric form
Asia/Rangoon becomes Asia/Yangon (with backward compat link)
@
text
@d119 7
a125 5
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1995 Sep 24 2:00s
4:00 - +04 1997
4:00 RussiaAsia +04/+05
d146 7
a152 6
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1992 Sep lastSun 2:00s
4:00 - +04 1996
4:00 EUAsia +04/+05 1997
4:00 Azer +04/+05
d271 1
a271 1
Zone Asia/Yangon 6:24:40 - LMT 1880 # or Rangoon
d386 1
a386 1
# Xujiahui Observatory was under French control and stuck with UT +08.
d395 1
a395 1
# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) UT +08:30
d399 1
a399 1
# Zhongyuan Time ("Central plain Time") UT +08
d405 1
a405 1
# Guo says Shanghai switched to UT +08 "from the end of the 19th century".
d407 1
a407 1
# Long-shu Time (probably due to Long and Shu being two names of the area) UT +07
d414 1
a414 1
# Xin-zang Time ("Xinjiang-Tibet Time") UT +06
d427 1
a427 1
# Kunlun Time UT +05:30
d443 1
a443 1
# hours behind Beijing time, or UT +06. The government of the Xinjiang
d499 2
a500 2
# In the early days of the PRC, Tibet was given its own time zone (UT +06)
# but this was withdrawn in 1959 and never reinstated; see Tubten Khétsun,
d514 1
a514 1
# UT +06 at the start of 1928, the year of accession of the warlord Jin Shuren,
d516 2
a517 2
# guess) as the transition from LMT. Ignore the usage of +08 before
# 1986-02-01 under the theory that the transition date to +08 is unknown and
d519 1
a519 1
# +08 mandate back then.
d724 1
a724 1
# As per Yu-Cheng Chuang, say that Taiwan was at UT +09 from 1937-10-01
d838 10
a847 9
3:00 - +03 1957 Mar
4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s
3:00 RussiaAsia +03/+04 1992
3:00 E-EurAsia +03/+04 1994 Sep lastSun
4:00 E-EurAsia +04/+05 1996 Oct lastSun
4:00 1:00 +05 1997 Mar lastSun
4:00 E-EurAsia +04/+05 2004 Jun 27
3:00 RussiaAsia +03/+04 2005 Mar lastSun 2:00
4:00 - +04
d924 1
a924 1
# from UT +09 to +07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura
d935 1
a935 1
# The time zone abbreviations and UT offsets are:
d937 3
a939 3
# WIB - +07 - Waktu Indonesia Barat (Indonesia western time)
# WITA - +08 - Waktu Indonesia Tengah (Indonesia central time)
# WIT - +09 - Waktu Indonesia Timur (Indonesia eastern time)
d1828 5
a1832 5
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 RussiaAsia +05/+06 1991 Aug 31 2:00
5:00 Kyrgyz +05/+06 2005 Aug 12
6:00 - +06
d1871 1
a1871 1
# From Paul Eggert (2016-08-23):
d1874 1
a1874 1
# 1908: Official Journal Article No. 3994 (decree No. 5)
d1879 1
d1881 3
a1883 2
# (Another source "1987: Law No. 3919 (1986-12-31)" was in the 2014-10-30
# edition of the Korean Wikipedia entry.)
d1889 1
a1889 2
# For Pyongyang, guess no changes from World War II until 2015, as we
# have no information otherwise.
d2049 1
a2049 1
# travelmongolia.org says there are two time zones (UT +07, +08) with no DST.
d2685 1
a2685 1
# time zones; the other zone, at UT +04, was in the far eastern part of
d2954 4
a2957 4
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s
5:00 1:00 +05/+06 1991 Sep 9 2:00s
5:00 - +05
d2971 5
a2975 4
4:00 - +04 1930 Jun 21
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00
5:00 - +05
d2987 7
a2993 6
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1992
5:00 - +05
d2996 5
a3000 4
5:00 - +05 1930 Jun 21
6:00 RussiaAsia +06/+07 1991 Mar 31 2:00
5:00 RussiaAsia +05/+06 1992
5:00 - +05
@
1.1.1.13
log
@Import tzdata2016h from ftp://ftp.iana.org/tz/releases/tzdata2016h.tar.gz
Summary of changes in tzdata2016h (2016-10-19 23:17:57 -0700):
Asia/Gaza and Asia/Hebron end of summer time for 2016 is
2016-10-29 at 01:00 rather than 2016-10-21 at 00:00 (which
is within hours after this update). Guess that future
end dates will be the last Sat of October.
Corrected some historic time (and one date) transition
times for Turkey (all 1990 or before.)
Switch Sri-Lanka to use numeric abbreviation for time zone
as the tzdata invented one is not correct, and the correct
one seems not to be widely used.
@
text
@d2547 5
d2561 1
a2561 15
# From Sharef Mustafa (2016-10-19):
# [T]he Palestinian cabinet decision (Mar 8th 2016) published on
# http://www.palestinecabinet.gov.ps/WebSite/Upload/Decree/GOV_17/16032016134830.pdf
# states that summer time will end on Oct 29th at 01:00.
#
# From Tim Parenti (2016-10-19):
# Predict fall transitions on October's last Saturday at 01:00 from now on.
# This is consistent with the 2016 transition as well as our spring
# predictions.
#
# From Paul Eggert (2016-10-19):
# It's also consistent with predictions in the following URLs today:
# http://www.timeanddate.com/time/change/gaza-strip/gaza
# http://www.timeanddate.com/time/change/west-bank/hebron
d2590 1
a2590 1
Rule Palestine 2014 2015 - Oct Fri>=21 0:00 0 -
a2592 1
Rule Palestine 2016 max - Oct lastSat 1:00 0 -
d2742 28
a2769 14
# From Sadika Sumanapala (2016-10-19):
# According to http://www.sltime.org (maintained by Measurement Units,
# Standards & Services Department, Sri Lanka) abbreviation for Sri Lanka
# standard time is SLST.
#
# From Paul Eggert (2016-10-18):
# "SLST" seems to be reasonably recent and rarely-used outside time
# zone nerd sources. I searched Google News and found three uses of
# it in the International Business Times of India in February and
# March of this year when discussing cricket match times, but nothing
# since then (though there has been a lot of cricket) and nothing in
# other English-language news sources. Our old abbreviation "LKT" is
# even worse. For now, let's use a numeric abbreviation; we can
# switch to "SLST" if it catches on.
d2774 7
a2780 7
5:30 - +0530 1942 Jan 5
5:30 0:30 +0530/+06 1942 Sep
5:30 1:00 +0530/+0630 1945 Oct 16 2:00
5:30 - +0530 1996 May 25 0:00
6:30 - +0630 1996 Oct 26 0:30
6:00 - +06 2006 Apr 15 0:30
5:30 - +0530
@
1.1.1.14
log
@Import tzdata2016i from ftp://ftp.iana.org/tz/releases/tzdata2016i.tar.gz
Summary of changes in tzdata2016i (2016-11-01 23:19:52 -0700):
Cyprus split into two time zones on 2016-10-30 (new zone is
Asia/Famagusta and is UTC+3 year round). Tonga reintroduces
summer time on 2016-11-06 (assumed for now to be aligned with Fiji).
This year's summer time switch (from +08 to +11) for Antarctica/Casey
occurred 2016-10-22.
Also (minor) adjustments to some historic data for Italy (most
recent applies to time of day of switch out of summer time in period
1967-1970 & 1972-1974, other changes relate to 1910's and 1940's.)
@
text
@d774 1
a774 1
d776 1
a776 11
# IATA SSIM (1998-09) has Cyprus using EU rules for the first time.
# From Paul Eggert (2016-09-09):
# Yesterday's Cyprus Mail reports that Northern Cyprus followed Turkey's
# lead and switched from +02/+03 to +03 year-round.
# http://cyprus-mail.com/2016/09/08/two-time-zones-cyprus-turkey-will-not-turn-clocks-back-next-month/
#
# From Even Scharning (2016-10-31):
# Looks like the time zone split in Cyprus went through last night.
# http://cyprus-mail.com/2016/10/30/cyprus-new-division-two-time-zones-now-reality/
d791 1
a791 4
Zone Asia/Famagusta 2:15:48 - LMT 1921 Nov 14
2:00 Cyprus EE%sT 1998 Sep
2:00 EUAsia EE%sT 2016 Sep 8
3:00 - +03
@
1.1.1.15
log
@Import tzdata2016j from ftp://ftp.iana.org/tz/releases/tzdata2016j.tar.gz
Summary of changes in tzdata2016j (2016-11-22 23:17:13 -0800):
Saratov, Russia switches from +03 to +04 on 2016-12-04 at 02:00.
This creates a new zone Europe/Saratov.
New zone Asia/Atyrau for Atyrau Region, Kazakhstan, is like
Asia/Aqtau except it switched from +04/+05 to +05/+06 in spring
1999, not fall 1994.
Asia/Gaza and Asia/Hebron now use "EEST", not "EET", to denote
summer time before 1948. The old use of "EET" was a typo.
@
text
@d1586 2
a1587 2
# same), encompassing four provinces in the west: Aqtöbe, Atyraū,
# Mangghystaū, and West Kazakhstan. The other zone encompasses
d1591 1
a1591 1
# From Stepan Golosunov (2016-03-27):
d1637 1
a1637 1
# to +04/+05. It's unclear how Qyzylorda oblast moved into the fifth
d1650 2
a1651 2
# border between them to be located east of Qostanay and Aktyubinsk
# oblasts (notably including Turgai and Qyzylorda oblasts into the fifth
d1655 2
a1656 2
# Asia/Aqtau, Asia/Aqtobe, Asia/Oral, Atyraū and Qostanay oblasts; from
# +05/+06 to +06/+07 for Asia/Almaty and Asia/Qyzylorda (and Arkalyk)....
d1661 1
a1661 1
# cancels extra hour ("decree time") for Uralsk and Qyzylorda oblasts
d1668 1
a1668 1
# cancels the extra hour ("decree time") on the territory of Mangghystaū
d1682 1
a1682 1
# cancels the extra hour ("decree time") for Atyraū oblast since the
d1686 4
a1689 1
# This means change from +05/+06 to +04/+05....
d1699 2
a1700 2
# probably changed time in territories incorporated into Qostanay oblast
# (including Arkalyk) from +06/+07 to +05/+06) and move Qyzylorda oblast
d1702 1
a1702 1
# fourth time belt (no change in practice).
d1712 1
a1712 1
# modified the 2000-11-23 act to move Qostanay and Qyzylorda oblasts into
d1724 3
a1726 3
# 2004-07-20 act to implement changes for Atyraū, West Kazakhstan,
# Qostanay, Qyzylorda and Mangghystaū oblasts by not moving clocks
# during the 2004 transition to "winter" time.
d1728 1
a1728 1
# This means transition from +04/+05 to +05/+06 for Atyraū oblast (no
d1730 2
a1731 2
# +06/+07 for Qostanay oblast (Qostanay and Arkalyk, no zones currently)
# and Asia/Qyzylorda on 2004-10-31 at 3:00....
d1747 6
a1752 2
# From Paul Eggert (2016-11-07):
# The tables below reflect Golosunov's remarks, with exceptions as noted.
d1754 1
a1766 2
# This currently includes Qostanay (aka Kostanay, Kustanay) (KZ-KUS);
# see comments below.
d1778 1
a1778 15
# The following zone is like Asia/Qyzylorda except for being one
# hour earlier from 1991-09-29 to 1992-03-29. The 1991/2 rules for
# Qostenay are unclear partly because of the 1997 Turgai
# reorganization, so this zone is commented out for now.
#Zone Asia/Qostanay 4:14:20 - LMT 1924 May 2
# 4:00 - +04 1930 Jun 21
# 5:00 - +05 1981 Apr 1
# 5:00 1:00 +06 1981 Oct 1
# 6:00 - +06 1982 Apr 1
# 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
# 4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
# 5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
# 6:00 - +06
#
# Aqtöbe (aka Aktobe, formerly Aktyubinsk) (KZ-AKT)
d1788 3
a1790 1
# Mangghystaū (KZ-MAN)
d1795 1
d1803 1
a1803 11
# Atyraū (KZ-ATY) is like Mangghystaū except it switched from
# +04/+05 to +05/+06 in spring 1999, not fall 1994.
Zone Asia/Atyrau 3:27:44 - LMT 1924 May 2
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 1999 Mar 28 2:00s
4:00 RussiaAsia +04/+05 2004 Oct 31 2:00s
5:00 - +05
d2619 1
a2619 1
2:00 Zion EET/EEST 1948 May 15
d2632 1
a2632 1
2:00 Zion EET/EEST 1948 May 15
@
1.1.1.15.2.1
log
@Sync with HEAD
@
text
@d9 1
a9 1
# From Paul Eggert (2017-01-13):
d16 2
a17 2
# Many years ago Gwillim Law wrote that a good source
# for time zone data was the International Air Transport
d38 3
a40 1
# The following alphabetic abbreviations appear in these tables:
d45 3
d49 1
d53 4
a56 1
# 8:30 KST KDT Korea when at +0830
a60 4
# Otherwise, these tables typically use numeric abbreviations like +03
# and +0330 for integer hour and minute UTC offsets. Although earlier
# editions invented alphabetic time zone abbreviations for every
# offset, this did not reflect common practice.
d68 1
a68 1
# Worldwide Edition).
d89 2
a90 2
4:00 - +04 1945
4:30 - +0430
d233 6
a238 5
6:30 - +0630 1942 May 15
5:30 - +0530 1942 Sep
6:30 - +0630 1951 Sep 30
6:00 - +06 2009
6:00 Dhaka +06/+07
d243 2
a244 2
5:30 - +0530 1987 Oct
6:00 - +06
d254 2
a255 2
5:00 - +05 1996
6:00 - +06
d260 2
a261 2
7:30 - +0730 1933
8:00 - +08
d270 3
a272 3
6:30 - +0630 1942 May
9:00 - +09 1945 May 3
6:30 - +0630
d335 1
a335 1
# From Paul Eggert (2017-01-05):
d393 1
a393 1
# Now part of Asia/Shanghai; its pre-1970 times are not recorded here.
d397 1
a397 1
# Now part of Asia/Shanghai.
d399 2
d404 2
a405 2
# Long-shu Time (probably as Long and Shu were two names of the area) UT +07
# Now part of Asia/Shanghai; its pre-1970 times are not recorded here.
d407 1
a407 1
# most of Gansu; west Inner Mongolia; east Qinghai; and the Guangdong
d412 3
a414 3
# This region is now part of either Asia/Urumqi or Asia/Shanghai with
# current boundaries uncertain; times before 1970 for areas that
# disagree with Ürümqi or Shanghai are not recorded here.
d425 1
a425 1
# This region is now in the same status as Xin-zang Time (see above).
d526 1
a526 1
6:00 - +06
d745 1
a745 1
8:00 - CST 1937 Oct 1
d751 14
a764 14
Rule Macau 1961 1962 - Mar Sun>=16 3:30 1:00 D
Rule Macau 1961 1964 - Nov Sun>=1 3:30 0 S
Rule Macau 1963 only - Mar Sun>=16 0:00 1:00 D
Rule Macau 1964 only - Mar Sun>=16 3:30 1:00 D
Rule Macau 1965 only - Mar Sun>=16 0:00 1:00 D
Rule Macau 1965 only - Oct 31 0:00 0 S
Rule Macau 1966 1971 - Apr Sun>=16 3:30 1:00 D
Rule Macau 1966 1971 - Oct Sun>=16 3:30 0 S
Rule Macau 1972 1974 - Apr Sun>=15 0:00 1:00 D
Rule Macau 1972 1973 - Oct Sun>=15 0:00 0 S
Rule Macau 1974 1977 - Oct Sun>=15 3:30 0 S
Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 D
Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 D
Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 S
d767 2
a768 1
8:00 Macau C%sT
d884 5
a888 4
8:00 - +08 1942 Feb 21 23:00
9:00 - +09 1976 May 3
8:00 - +08 2000 Sep 17 0:00
9:00 - +09
d903 1
a903 1
6:30 - +0630 1942 May 15
d905 1
a905 1
5:30 1:00 +0630 1945 Oct 15
d956 6
a961 6
7:20 - +0720 1932 Nov
7:30 - +0730 1942 Mar 23
9:00 - +09 1945 Sep 23
7:30 - +0730 1948 May
8:00 - +08 1950 May
7:30 - +0730 1964
d966 5
a970 5
7:30 - +0730 1942 Jan 29
9:00 - +09 1945 Sep 23
7:30 - +0730 1948 May
8:00 - +08 1950 May
7:30 - +0730 1964
d976 2
a977 2
8:00 - +08 1942 Feb 9
9:00 - +09 1945 Sep 23
d981 2
a982 2
9:00 - +09 1944 Sep 1
9:30 - +0930 1964
d1014 2
d1122 3
a1124 3
3:30 - +0330 1977 Nov
4:00 Iran +04/+05 1979
3:30 Iran +0330/+0430
d1167 2
a1168 2
3:00 - +03 1982 May
3:00 Iraq +03/+04
d1467 2
d1744 1
a1744 17
# From Stepan Golosunov (2016-11-08):
# Turgai reorganization should affect only southern part of Qostanay
# oblast. Which should probably be separated into Asia/Arkalyk zone.
# (There were also 1970, 1988 and 1990 Turgai oblast reorganizations
# according to wikipedia.)
#
# [For Qostanay] http://www.ng.kz/gazeta/195/hranit/
# suggests that clocks were to be moved 40 minutes backwards on
# 1920-01-01 to the fourth time belt. But I do not understand
# how that could happen....
#
# [For Atyrau and Oral] 1919 decree
# (http://www.worldtimezone.com/dst_news/dst_news_russia-1919-02-08.html
# and in Byalokoz) lists Ural river (plus 10 versts on its left bank) in
# the third time belt (before 1930 this means +03).
# From Paul Eggert (2016-12-06):
d1774 1
a1774 1
# Qostanay are unclear partly because of the 1997 Turgai
d1811 1
a1811 1
3:00 - +03 1930 Jun 21
d1823 1
a1823 1
3:00 - +03 1930 Jun 21
d1929 1
d1936 1
d1991 7
a1997 7
7:00 - +07 1933 Jan 1
7:00 0:20 +0720 1936 Jan 1
7:20 - +0720 1941 Sep 1
7:30 - +0730 1942 Feb 16
9:00 - +09 1945 Sep 12
7:30 - +0730 1982 Jan 1
8:00 - +08
d2004 5
a2008 4
7:30 - +0730 1933
8:00 NBorneo +08/+0820 1942 Feb 16
9:00 - +09 1945 Sep 12
8:00 - +08
d2014 1
a2014 1
5:00 - +05
a2140 4
# From Ganbold Tsagaankhuu (2017-02-09):
# Mongolian Government meeting has concluded today to cancel daylight
# saving time adoption in Mongolia. Source: http://zasag.mn/news/view/16192
d2147 2
a2148 2
Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 S
Rule Mongol 2015 2016 - Sep lastSat 0:00 0 -
d2153 2
a2154 2
6:00 - +06 1978
7:00 Mongol +07/+08
d2157 2
a2158 2
7:00 - +07 1978
8:00 Mongol +08/+09
d2162 4
a2165 4
7:00 - +07 1978
8:00 - +08 1983 Apr
9:00 Mongol +09/+10 2008 Mar 31
8:00 Mongol +08/+09
d2170 2
a2171 2
5:30 - +0530 1986
5:45 - +0545
d2320 4
a2323 4
5:30 - +0530 1942 Sep
5:30 1:00 +0630 1945 Oct 15
5:30 - +0530 1951 Sep 30
5:00 - +05 1971 Mar 26
d2688 3
a2690 3
8:00 Phil +08/+09 1942 May
9:00 - +09 1944 Nov
8:00 Phil +08/+09
d2695 2
a2696 2
4:00 - +04 1972 Jun
3:00 - +03
d2723 1
a2723 1
3:00 - +03
d2733 8
a2740 7
7:00 - +07 1933 Jan 1
7:00 0:20 +0720 1936 Jan 1
7:20 - +0720 1941 Sep 1
7:30 - +0730 1942 Feb 16
9:00 - +09 1945 Sep 12
7:30 - +0730 1982 Jan 1
8:00 - +08
d2799 2
a2800 2
5:30 0:30 +06 1942 Sep
5:30 1:00 +0630 1945 Oct 16 2:00
d2982 1
a2982 1
7:00 - +07
d2998 1
a2998 1
4:00 - +04
d3071 9
a3079 9
7:06:30 - PLMT 1911 May 1 # Phù Liễn MT
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 2
7:00 - +07 1947 Apr 1
8:00 - +08 1955 Jul 1
7:00 - +07 1959 Dec 31 23:00
8:00 - +08 1975 Jun 13
7:00 - +07
@
1.1.1.16
log
@Import tzdata2017a from ftp://ftp.iana.org/tz/releases/tzdata2017a.tar.gz
Summary of changes in tzdata2017a (2017-02-28 00:05:36 -0800):
Briefly: Southern Chile moves from -04/-03 to -03, and Mongolia
discontinues DST.
Changes to future time stamps
Mongolia no longer observes DST.
Chile's Region of Magallanes moves from -04/-03 to -03 year-round.
Changes to past time stamps
Fix many entries for historical time stamps for Europe/Madrid
before 1979, to agree with tables compiled by Pere Planesas of the
National Astronomical Observatory of Spain. As a side effect,
this changes some time stamps for Africa/Ceuta before 1929, which
are probably guesswork anyway.
Ecuador observed DST from 1992-11-28 to 1993-02-05.
Asia/Atyrau and Asia/Oral were at +03 (not +04) before 1930-06-21.
Changes to past and future time zone abbreviations
Switch to numeric time zone abbreviations for South America, as
part of the ongoing project of removing invented abbreviations.
For Alaska time from 1900 through 1967, instead of "CAT" use the
abbreviation "AST", the abbreviation commonly used at the time
(Atlantic Standard Time had not been standardized yet). Use "AWT"
and "APT" instead of the invented abbreviations "CAWT" and "CAPT".
Use "CST" and "CDT" instead of invented abbreviations for Macau
before 1999 and Taiwan before 1938, and use "JST" instead of the
invented abbreviation "JCST" for Japan and Korea before 1938.
Change to database entry category
Move the Pacific/Johnston link from 'australasia' to 'backward',
since Johnston is now uninhabited.
@
text
@d9 1
a9 1
# From Paul Eggert (2017-01-13):
d16 2
a17 2
# Many years ago Gwillim Law wrote that a good source
# for time zone data was the International Air Transport
d38 3
a40 1
# The following alphabetic abbreviations appear in these tables:
d45 3
d49 1
d53 4
a56 1
# 8:30 KST KDT Korea when at +0830
a60 4
# Otherwise, these tables typically use numeric abbreviations like +03
# and +0330 for integer hour and minute UTC offsets. Although earlier
# editions invented alphabetic time zone abbreviations for every
# offset, this did not reflect common practice.
d68 1
a68 1
# Worldwide Edition).
d89 2
a90 2
4:00 - +04 1945
4:30 - +0430
d233 6
a238 5
6:30 - +0630 1942 May 15
5:30 - +0530 1942 Sep
6:30 - +0630 1951 Sep 30
6:00 - +06 2009
6:00 Dhaka +06/+07
d243 2
a244 2
5:30 - +0530 1987 Oct
6:00 - +06
d254 2
a255 2
5:00 - +05 1996
6:00 - +06
d260 2
a261 2
7:30 - +0730 1933
8:00 - +08
d270 3
a272 3
6:30 - +0630 1942 May
9:00 - +09 1945 May 3
6:30 - +0630
d335 1
a335 1
# From Paul Eggert (2017-01-05):
d393 1
a393 1
# Now part of Asia/Shanghai; its pre-1970 times are not recorded here.
d397 1
a397 1
# Now part of Asia/Shanghai.
d399 2
d404 2
a405 2
# Long-shu Time (probably as Long and Shu were two names of the area) UT +07
# Now part of Asia/Shanghai; its pre-1970 times are not recorded here.
d407 1
a407 1
# most of Gansu; west Inner Mongolia; east Qinghai; and the Guangdong
d412 3
a414 3
# This region is now part of either Asia/Urumqi or Asia/Shanghai with
# current boundaries uncertain; times before 1970 for areas that
# disagree with Ürümqi or Shanghai are not recorded here.
d425 1
a425 1
# This region is now in the same status as Xin-zang Time (see above).
d526 1
a526 1
6:00 - +06
d745 1
a745 1
8:00 - CST 1937 Oct 1
d751 14
a764 14
Rule Macau 1961 1962 - Mar Sun>=16 3:30 1:00 D
Rule Macau 1961 1964 - Nov Sun>=1 3:30 0 S
Rule Macau 1963 only - Mar Sun>=16 0:00 1:00 D
Rule Macau 1964 only - Mar Sun>=16 3:30 1:00 D
Rule Macau 1965 only - Mar Sun>=16 0:00 1:00 D
Rule Macau 1965 only - Oct 31 0:00 0 S
Rule Macau 1966 1971 - Apr Sun>=16 3:30 1:00 D
Rule Macau 1966 1971 - Oct Sun>=16 3:30 0 S
Rule Macau 1972 1974 - Apr Sun>=15 0:00 1:00 D
Rule Macau 1972 1973 - Oct Sun>=15 0:00 0 S
Rule Macau 1974 1977 - Oct Sun>=15 3:30 0 S
Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 D
Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 D
Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 S
d767 2
a768 1
8:00 Macau C%sT
d884 5
a888 4
8:00 - +08 1942 Feb 21 23:00
9:00 - +09 1976 May 3
8:00 - +08 2000 Sep 17 0:00
9:00 - +09
d903 1
a903 1
6:30 - +0630 1942 May 15
d905 1
a905 1
5:30 1:00 +0630 1945 Oct 15
d956 6
a961 6
7:20 - +0720 1932 Nov
7:30 - +0730 1942 Mar 23
9:00 - +09 1945 Sep 23
7:30 - +0730 1948 May
8:00 - +08 1950 May
7:30 - +0730 1964
d966 5
a970 5
7:30 - +0730 1942 Jan 29
9:00 - +09 1945 Sep 23
7:30 - +0730 1948 May
8:00 - +08 1950 May
7:30 - +0730 1964
d976 2
a977 2
8:00 - +08 1942 Feb 9
9:00 - +09 1945 Sep 23
d981 2
a982 2
9:00 - +09 1944 Sep 1
9:30 - +0930 1964
d1014 2
d1122 3
a1124 3
3:30 - +0330 1977 Nov
4:00 Iran +04/+05 1979
3:30 Iran +0330/+0430
d1167 2
a1168 2
3:00 - +03 1982 May
3:00 Iraq +03/+04
d1467 2
d1744 1
a1744 17
# From Stepan Golosunov (2016-11-08):
# Turgai reorganization should affect only southern part of Qostanay
# oblast. Which should probably be separated into Asia/Arkalyk zone.
# (There were also 1970, 1988 and 1990 Turgai oblast reorganizations
# according to wikipedia.)
#
# [For Qostanay] http://www.ng.kz/gazeta/195/hranit/
# suggests that clocks were to be moved 40 minutes backwards on
# 1920-01-01 to the fourth time belt. But I do not understand
# how that could happen....
#
# [For Atyrau and Oral] 1919 decree
# (http://www.worldtimezone.com/dst_news/dst_news_russia-1919-02-08.html
# and in Byalokoz) lists Ural river (plus 10 versts on its left bank) in
# the third time belt (before 1930 this means +03).
# From Paul Eggert (2016-12-06):
d1774 1
a1774 1
# Qostanay are unclear partly because of the 1997 Turgai
d1811 1
a1811 1
3:00 - +03 1930 Jun 21
d1823 1
a1823 1
3:00 - +03 1930 Jun 21
d1929 1
d1936 1
d1991 7
a1997 7
7:00 - +07 1933 Jan 1
7:00 0:20 +0720 1936 Jan 1
7:20 - +0720 1941 Sep 1
7:30 - +0730 1942 Feb 16
9:00 - +09 1945 Sep 12
7:30 - +0730 1982 Jan 1
8:00 - +08
d2004 5
a2008 4
7:30 - +0730 1933
8:00 NBorneo +08/+0820 1942 Feb 16
9:00 - +09 1945 Sep 12
8:00 - +08
d2014 1
a2014 1
5:00 - +05
a2140 4
# From Ganbold Tsagaankhuu (2017-02-09):
# Mongolian Government meeting has concluded today to cancel daylight
# saving time adoption in Mongolia. Source: http://zasag.mn/news/view/16192
d2147 2
a2148 2
Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 S
Rule Mongol 2015 2016 - Sep lastSat 0:00 0 -
d2153 2
a2154 2
6:00 - +06 1978
7:00 Mongol +07/+08
d2157 2
a2158 2
7:00 - +07 1978
8:00 Mongol +08/+09
d2162 4
a2165 4
7:00 - +07 1978
8:00 - +08 1983 Apr
9:00 Mongol +09/+10 2008 Mar 31
8:00 Mongol +08/+09
d2170 2
a2171 2
5:30 - +0530 1986
5:45 - +0545
d2320 4
a2323 4
5:30 - +0530 1942 Sep
5:30 1:00 +0630 1945 Oct 15
5:30 - +0530 1951 Sep 30
5:00 - +05 1971 Mar 26
d2688 3
a2690 3
8:00 Phil +08/+09 1942 May
9:00 - +09 1944 Nov
8:00 Phil +08/+09
d2695 2
a2696 2
4:00 - +04 1972 Jun
3:00 - +03
d2723 1
a2723 1
3:00 - +03
d2733 8
a2740 7
7:00 - +07 1933 Jan 1
7:00 0:20 +0720 1936 Jan 1
7:20 - +0720 1941 Sep 1
7:30 - +0730 1942 Feb 16
9:00 - +09 1945 Sep 12
7:30 - +0730 1982 Jan 1
8:00 - +08
d2799 2
a2800 2
5:30 0:30 +06 1942 Sep
5:30 1:00 +0630 1945 Oct 16 2:00
d2982 1
a2982 1
7:00 - +07
d2998 1
a2998 1
4:00 - +04
d3071 9
a3079 9
7:06:30 - PLMT 1911 May 1 # Phù Liễn MT
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 2
7:00 - +07 1947 Apr 1
8:00 - +08 1955 Jul 1
7:00 - +07 1959 Dec 31 23:00
8:00 - +08 1975 Jun 13
7:00 - +07
@
1.1.1.16.4.1
log
@Pull up following revision(s) (requested by kre in ticket #333):
doc/3RDPARTY: 1.1479
distrib/sets/lists/base/mi: 1.1164
external/public-domain/tz/dist/CONTRIBUTING: up to 1.1.1.4
external/public-domain/tz/dist/LICENSE: up to 1.1.1.3
external/public-domain/tz/dist/Makefile: up to 1.1.1.18
external/public-domain/tz/dist/NEWS: up to 1.1.1.19
external/public-domain/tz/dist/TZDATA_VERSION: up to 1.9
external/public-domain/tz/dist/Theory: delete
external/public-domain/tz/dist/africa: up to 1.1.1.12
external/public-domain/tz/dist/antarctica: up to 1.1.1.9
external/public-domain/tz/dist/asia: up to 1.1.1.17
external/public-domain/tz/dist/australasia: up to 1.1.1.12
external/public-domain/tz/dist/backward: up to 1.1.1.8
external/public-domain/tz/dist/backzone: up to 1.1.1.12
external/public-domain/tz/dist/calendars: up to 1.1.1.1
external/public-domain/tz/dist/checklinks.awk: up to 1.1.1.3
external/public-domain/tz/dist/europe: up to 1.1.1.18
external/public-domain/tz/dist/leap-seconds.list: up to 1.1.1.8
external/public-domain/tz/dist/leapseconds: up to 1.1.1.9
external/public-domain/tz/dist/leapseconds.awk: up to 1.1.1.6
external/public-domain/tz/dist/northamerica: up to 1.1.1.17
external/public-domain/tz/dist/southamerica: up to 1.1.1.12
external/public-domain/tz/dist/theory.html: up to 1.1.1.1
external/public-domain/tz/dist/version: up to 1.1.1.6
external/public-domain/tz/dist/zishrink.awk: up to 1.1.1.1
external/public-domain/tz/dist/zone.tab: up to 1.1.1.12
external/public-domain/tz/dist/zone1970.tab: up to 1.1.1.14
Update tzdata to 2017c.
@
text
@d29 1
a29 1
# https://www.jstor.org/stable/1774359
d78 2
a79 2
Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 S
Rule RussiaAsia 1996 2010 - Oct lastSun 2:00s 0 -
a111 3
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 S
Rule Armenia 2011 only - Oct lastSun 2:00s 0 -
d118 1
a118 2
4:00 RussiaAsia +04/+05 2011
4:00 Armenia +04/+05
d130 1
a130 1
# https://www.azernews.az/azerbaijan/94137.html
d171 1
a171 1
# https://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601
d175 1
a175 1
# https://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html
a260 6
# From Paul Eggert (2017-04-20):
# Page 27 of Reed & Low (cited for Asia/Kolkata) says "Rangoon local time is
# used upon the railways and telegraphs of Burma, and is 6h. 24m. 47s. ahead
# of Greenwich." This refers to the period before Burma's transition to +0630,
# a transition for which Shanks is the only source.
d262 2
a263 2
Zone Asia/Yangon 6:24:47 - LMT 1880 # or Rangoon
6:24:47 - RMT 1920 # Rangoon local time
d320 1
a320 1
# https://www.astro.com/atlas site [with provinces and county
d472 1
a472 1
# https://content.time.com/time/magazine/article/0,9171,960684,00.html
d629 1
a629 1
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
d642 1
a642 1
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
a777 6
# From Paul Eggert (2017-10-18):
# Northern Cyprus will reinstate winter time on October 29, thus
# staying in sync with the rest of Cyprus. See: Anastasiou A.
# Cyprus to remain united in time. Cyprus Mail 2017-10-17.
# https://cyprus-mail.com/2017/10/17/cyprus-remain-united-time/
d795 1
a795 2
3:00 - +03 2017 Oct 29 1:00u
2:00 EUAsia EE%sT
d855 1
a855 1
# (1999-12-26/31):
d883 1
a883 1
# https://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/
d890 4
a893 45
# From Paul Eggert (2017-04-20):
# Good luck trying to nail down old timekeeping records in India.
# "... in the nineteenth century ... Madras Observatory took its magnetic
# measurements on Göttingen time, its meteorological measurements on Madras
# (local) time, dropped its time ball on Greenwich (ocean navigator's) time,
# and distributed civil (local time)." -- Bartky IR. Selling the true time:
# 19th-century timekeeping in america. Stanford U Press (2000), 247 note 19.
# "A more potent cause of resistance to the general adoption of the present
# standard time lies in the fact that it is Madras time. The citizen of
# Bombay, proud of being 'primus in Indis' and of Calcutta, equally proud of
# his city being the Capital of India, and - for a part of the year - the Seat
# of the Supreme Government, alike look down on Madras, and refuse to change
# the time they are using, for that of what they regard as a benighted
# Presidency; while Madras, having for long given the standard time to the
# rest of India, would resist the adoption of any other Indian standard in its
# place." -- Oldham RD. On Time in India: a suggestion for its improvement.
# Proceedings of the Asiatic Society of Bengal (April 1899), 49-55.
#
# "In 1870 ... Madras time - 'now used by the telegraph and regulated from the
# only government observatory' - was suggested as a standard railway time,
# first to be adopted on the Great Indian Peninsular Railway (GIPR)....
# Calcutta, Bombay, and Karachi, were to be allowed to continue with their
# local time for civil purposes." - Prasad R. Tracks of Change: Railways and
# Everyday Life in Colonial India. Cambridge University Press (2016), 145.
#
# Reed S, Low F. The Indian Year Book 1936-37. Bennett, Coleman, pp 27-8.
# https://archive.org/details/in.ernet.dli.2015.282212
# This lists +052110 as Madras local time used in railways, and says that on
# 1906-01-01 railways and telegraphs in India switched to +0530. Some
# municipalities retained their former time, and the time in Calcutta
# continued to depend on whether you were at the railway station or at
# government offices. Government time was at +055320 (according to Shanks) or
# at +0554 (according to the Indian Year Book). Railway time is more
# appropriate for our purposes, as it was better documented, it is what we do
# elsewhere (e.g., Europe/London before 1880), and after 1906 it was
# consistent in the region now identified by Asia/Kolkata. So, use railway
# time for 1870-1941. Shanks is our only (and dubious) source for the
# 1941-1945 data.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kolkata 5:53:28 - LMT 1854 Jun 28 # Kolkata
5:53:20 - HMT 1870 # Howrah Mean Time?
5:21:10 - MMT 1906 Jan 1 # Madras local time
5:30 - IST 1941 Oct
5:30 1:00 +0630 1942 May 15
d897 1
a897 1
# Since 1970 the following are like Asia/Kolkata:
d1039 1
a1039 1
# https://uk.reuters.com/article/oilRpt/idUKBLA65048420070916
d1138 1
a1138 1
# https://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
d1446 1
a1446 1
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
d1451 1
a1451 1
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
d1513 1
a1513 1
# https://www.timeanddate.com/news/time/jordan-reverses-dst-decision.html
d1871 1
a1871 1
# https://mm.icann.org/pipermail/tz/2014-October/021830.html
d1873 1
a1873 1
# https://ko.wikipedia.org/wiki/한국_표준시
d2095 1
a2095 1
# https://www.timeanddate.com/worldclock/city.html?n=1026
d2225 1
a2225 1
# http://www.worldtimezone.com/dst_news/dst_news_pakistan01.html
d2291 1
a2291 1
# https://www.timeanddate.com/news/time/pakistan-ends-dst09.html
d2473 1
a2473 1
# https://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html
d2511 1
a2511 1
# https://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html
d2521 1
a2521 1
# https://www.timeanddate.com/news/time/palestine-dst-2011.html
d2531 1
a2531 1
# https://www.jpost.com/MiddleEast/Article.aspx?id=235650
d2552 1
a2552 1
# https://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html
d2572 1
a2572 1
# and https://www.raya.ps/ar/news/890705.html say Palestine areas will
d2576 1
a2576 1
# https://www.timeanddate.com/time/change/west-bank/ramallah?year=2014
d2600 2
a2601 2
# https://www.timeanddate.com/time/change/gaza-strip/gaza
# https://www.timeanddate.com/time/change/west-bank/hebron
d2664 1
a2664 1
# https://www.staff.science.uu.nl/~gent0113/idl/idl_philippines.htm
d2928 1
a2928 1
# https://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html
d2955 1
a2955 1
# https://www.timeanddate.com/news/time/syria-dst-2012.html
d3038 1
a3038 1
# https://mm.icann.org/pipermail/tz/2014-October/021654.html
@
1.1.1.16.4.2
log
@Catch up to current for the following files, requeted by kre in ticket 513:
external/public-domain/tz/dist/Makefile up to 1.1.1.19
external/public-domain/tz/dist/NEWS up to 1.1.1.20
external/public-domain/tz/dist/README up to 1.1.1.6
external/public-domain/tz/dist/TZDATA_VERSION up to 1.10
external/public-domain/tz/dist/africa up to 1.1.1.13
external/public-domain/tz/dist/asia up to 1.1.1.18
external/public-domain/tz/dist/australasia up to 1.1.1.13
external/public-domain/tz/dist/backzone up to 1.1.1.13
external/public-domain/tz/dist/europe up to 1.1.1.19
external/public-domain/tz/dist/leap-seconds.list up to 1.1.1.9
external/public-domain/tz/dist/leapseconds up to 1.1.1.10
external/public-domain/tz/dist/northamerica up to 1.1.1.18
external/public-domain/tz/dist/southamerica up to 1.1.1.13
external/public-domain/tz/dist/theory.html up to 1.1.1.2
external/public-domain/tz/dist/version up to 1.1.1.7
external/public-domain/tz/dist/zishrink.awk up to 1.1.1.2
external/public-domain/tz/dist/zone.tab up to 1.1.1.13
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.15
doc/3RDPARTY 1.1496 (via patch)
Import tzdata2018c.
@
text
@d53 1
a53 1
# and +0330 for integer hour and minute UT offsets. Although earlier
d650 1
a650 1
# (UT+9). The adoption began on Oct 1, 1937. The original text can
d654 1
a654 1
# That is, the time zone of Taipei switched to UT+9 on Oct 1, 1937.
d657 2
a658 2
# I've found more evidence about when the time zone was switched from UT+9
# back to UT+8 after WW2. I believe it was on Sep 21, 1945. In a document
d660 1
a660 1
# zone back to Western Standard Time (UT+8) on Sep 21. And in another
d1467 11
a1477 11
# From Takayuki Nikai (2018-01-19):
# The source of information is Japanese law.
# http://www.shugiin.go.jp/internet/itdb_housei.nsf/html/houritsu/00219480428029.htm
# http://www.shugiin.go.jp/internet/itdb_housei.nsf/html/houritsu/00719500331039.htm
# ... In summary, it is written as follows. From 24:00 on the first Saturday
# in May, until 0:00 on the day after the second Saturday in September.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Japan 1948 only - May Sat>=1 24:00 1:00 D
Rule Japan 1948 1951 - Sep Sun>=9 0:00 0 S
Rule Japan 1949 only - Apr Sat>=1 24:00 1:00 D
Rule Japan 1950 1951 - May Sat>=1 24:00 1:00 D
d1508 1
a1508 1
# Central Time (UT+9). The adoption began on Oct 1, 1937.
d2069 2
a2070 2
Zone Indian/Maldives 4:54:00 - LMT 1880 # Malé
4:54:00 - MMT 1960 # Malé Mean Time
@
1.1.1.16.4.3
log
@Pull up following revision(s) (requested by kre in ticket #654):
doc/3RDPARTY: 1.1506 via patch
external/public-domain/tz/dist/CONTRIBUTING: up to 1.1.1.5
external/public-domain/tz/dist/Makefile: up to 1.1.1.20
external/public-domain/tz/dist/NEWS: up to 1.1.1.21
external/public-domain/tz/dist/TZDATA_VERSION: up to 1.11
external/public-domain/tz/dist/africa: up to 1.1.1.14
external/public-domain/tz/dist/antarctica: up to 1.1.1.10
external/public-domain/tz/dist/asia: up to 1.1.1.19
external/public-domain/tz/dist/australasia: up to 1.1.1.14
external/public-domain/tz/dist/backzone: up to 1.1.1.14
external/public-domain/tz/dist/checktab.awk: up to 1.1.1.9
external/public-domain/tz/dist/europe: up to 1.1.1.20
external/public-domain/tz/dist/northamerica: up to 1.1.1.19
external/public-domain/tz/dist/southamerica: up to 1.1.1.14
external/public-domain/tz/dist/theory.html: up to 1.1.1.3
external/public-domain/tz/dist/version: up to 1.1.1.8
external/public-domain/tz/dist/ziguard.awk: up to 1.1.1.1
external/public-domain/tz/dist/zishrink.awk: up to 1.1.1.3
external/public-domain/tz/dist/zone.tab: up to 1.1.1.14
external/public-domain/tz/dist/zone1970.tab: up to 1.1.1.16
external/public-domain/tz/tzdata2netbsd: up to 1.12
Update tzdata to 2018d.
@
text
@d72 1
a72 1
Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 -
d75 1
a75 1
Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 -
d78 1
a78 1
Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 -
d113 1
a113 1
Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 -
d139 1
a139 1
Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 -
d226 1
a226 1
Rule Dhaka 2009 only - Jun 19 23:00 1:00 -
a766 1
# See Europe/Lisbon for info about the 1912 transition.
d768 1
a768 1
Zone Asia/Macau 7:34:20 - LMT 1911 Dec 31 16:00u
d1109 47
a1155 47
Rule Iran 1978 1980 - Mar 21 0:00 1:00 -
Rule Iran 1978 only - Oct 21 0:00 0 -
Rule Iran 1979 only - Sep 19 0:00 0 -
Rule Iran 1980 only - Sep 23 0:00 0 -
Rule Iran 1991 only - May 3 0:00 1:00 -
Rule Iran 1992 1995 - Mar 22 0:00 1:00 -
Rule Iran 1991 1995 - Sep 22 0:00 0 -
Rule Iran 1996 only - Mar 21 0:00 1:00 -
Rule Iran 1996 only - Sep 21 0:00 0 -
Rule Iran 1997 1999 - Mar 22 0:00 1:00 -
Rule Iran 1997 1999 - Sep 22 0:00 0 -
Rule Iran 2000 only - Mar 21 0:00 1:00 -
Rule Iran 2000 only - Sep 21 0:00 0 -
Rule Iran 2001 2003 - Mar 22 0:00 1:00 -
Rule Iran 2001 2003 - Sep 22 0:00 0 -
Rule Iran 2004 only - Mar 21 0:00 1:00 -
Rule Iran 2004 only - Sep 21 0:00 0 -
Rule Iran 2005 only - Mar 22 0:00 1:00 -
Rule Iran 2005 only - Sep 22 0:00 0 -
Rule Iran 2008 only - Mar 21 0:00 1:00 -
Rule Iran 2008 only - Sep 21 0:00 0 -
Rule Iran 2009 2011 - Mar 22 0:00 1:00 -
Rule Iran 2009 2011 - Sep 22 0:00 0 -
Rule Iran 2012 only - Mar 21 0:00 1:00 -
Rule Iran 2012 only - Sep 21 0:00 0 -
Rule Iran 2013 2015 - Mar 22 0:00 1:00 -
Rule Iran 2013 2015 - Sep 22 0:00 0 -
Rule Iran 2016 only - Mar 21 0:00 1:00 -
Rule Iran 2016 only - Sep 21 0:00 0 -
Rule Iran 2017 2019 - Mar 22 0:00 1:00 -
Rule Iran 2017 2019 - Sep 22 0:00 0 -
Rule Iran 2020 only - Mar 21 0:00 1:00 -
Rule Iran 2020 only - Sep 21 0:00 0 -
Rule Iran 2021 2023 - Mar 22 0:00 1:00 -
Rule Iran 2021 2023 - Sep 22 0:00 0 -
Rule Iran 2024 only - Mar 21 0:00 1:00 -
Rule Iran 2024 only - Sep 21 0:00 0 -
Rule Iran 2025 2027 - Mar 22 0:00 1:00 -
Rule Iran 2025 2027 - Sep 22 0:00 0 -
Rule Iran 2028 2029 - Mar 21 0:00 1:00 -
Rule Iran 2028 2029 - Sep 21 0:00 0 -
Rule Iran 2030 2031 - Mar 22 0:00 1:00 -
Rule Iran 2030 2031 - Sep 22 0:00 0 -
Rule Iran 2032 2033 - Mar 21 0:00 1:00 -
Rule Iran 2032 2033 - Sep 21 0:00 0 -
Rule Iran 2034 2035 - Mar 22 0:00 1:00 -
Rule Iran 2034 2035 - Sep 22 0:00 0 -
d1162 2
a1163 2
Rule Iran 2036 max - Mar 21 0:00 1:00 -
Rule Iran 2036 max - Sep 21 0:00 0 -
d1199 6
a1204 6
Rule Iraq 1982 only - May 1 0:00 1:00 -
Rule Iraq 1982 1984 - Oct 1 0:00 0 -
Rule Iraq 1983 only - Mar 31 0:00 1:00 -
Rule Iraq 1984 1985 - Apr 1 0:00 1:00 -
Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 -
Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 -
d1208 2
a1209 2
Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 -
Rule Iraq 1991 2007 - Oct 1 3:00s 0 -
d1481 2
a1482 1
# Observatory: 139° 44' 40.90" E (9h 18m 58.727s), 35° 39' 16.0" N.
d1490 1
a1490 1
# which stands for the time on 135° E.
d1493 1
a1493 1
# time", which stands for the time on 120° E.... But "western standard
d1906 1
a1906 1
Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 -
d1908 1
a1908 1
Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 -
d2040 1
a2040 1
Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 -
d2185 1
a2185 1
Rule Mongol 1983 1984 - Apr 1 0:00 1:00 -
d2202 1
a2202 1
Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 -
d2205 1
a2205 1
Rule Mongol 2001 only - Apr lastSat 2:00 1:00 -
d2207 2
a2208 2
Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 -
Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 -
d2642 3
a2660 10
# From Sharef Mustafa (2018-03-16):
# Palestine summer time will start on Mar 24th 2018 by advancing the
# clock by 60 minutes as per Palestinian cabinet decision published on
# the offical website, though the decree did not specify the exact
# time of the time shift.
# http://www.palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e7a42ab7-ee23-435a-b9c8-a4f7e81f3817
#
# From Paul Eggert (2018-03-16):
# For 2016 on, predict spring transitions on March's fourth Saturday at 01:00.
d2690 1
a2690 1
Rule Palestine 2016 max - Mar Sat>=22 1:00 1:00 S
d2740 1
a2740 1
Rule Phil 1936 only - Nov 1 0:00 1:00 -
d2742 1
a2742 1
Rule Phil 1954 only - Apr 12 0:00 1:00 -
d2744 1
a2744 1
Rule Phil 1978 only - Mar 22 0:00 1:00 -
d3100 1
a3100 1
# Phù Liễn Observatory, legally 104° 17' 17" east of Paris.
d3102 1
a3102 1
# the Paris Meridian (2° 20' 14.03" E); the former yields 07:06:30.1333...
@
1.1.1.16.4.4
log
@Catch up to current for the following, requested by kre in ticket #809:
external/public-domain/tz/dist/Makefile up to 1.1.1.21
external/public-domain/tz/dist/NEWS up to 1.1.1.22
external/public-domain/tz/dist/TZDATA_VERSION up to 1.12
external/public-domain/tz/dist/africa up to 1.1.1.15
external/public-domain/tz/dist/asia up to 1.1.1.20
external/public-domain/tz/dist/australasia up to 1.1.1.15
external/public-domain/tz/dist/europe up to 1.1.1.21
external/public-domain/tz/dist/theory.html up to 1.1.1.4
external/public-domain/tz/dist/version up to 1.1.1.9
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.2
doc/3RDPARTY 1.1520 (patch)
tzdata updated to 2018e.
@
text
@a1985 13
# From Kang Seonghoon (2018-04-29):
# North Korea will revert its time zone from UTC+8:30 (PYT; Pyongyang
# Time) back to UTC+9 (KST; Korea Standard Time).
#
# From Seo Sanghyeon (2018-04-30):
# Rodong Sinmun 2018-04-30 announced Pyongyang Time transition plan.
# https://www.nknews.org/kcna/wp-content/uploads/sites/5/2018/04/rodong-2018-04-30.pdf
# ... the transition date is 2018-05-05 ... Citation should be Decree
# No. 2232 of April 30, 2018, of the Presidium of the Supreme People's
# Assembly, as published in Rodong Sinmun.
# From Tim Parenti (2018-04-29):
# It appears to be the front page story at the top in the right-most column.
d1997 1
a1997 2
8:30 - KST 2018 May 5
9:00 - KST
d2661 1
a2661 1
# the official website, though the decree did not specify the exact
@
1.1.1.16.4.5
log
@Sync the following with current, requested by kre in ticket #1068
external/public-domain/tz/dist/CONTRIBUTING up to 1.1.1.6
external/public-domain/tz/dist/Makefile up to 1.1.1.22
external/public-domain/tz/dist/NEWS up to 1.1.1.23
external/public-domain/tz/dist/README up to 1.1.1.7
external/public-domain/tz/dist/TZDATA_VERSION up to 1.13
external/public-domain/tz/dist/africa up to 1.1.1.16
external/public-domain/tz/dist/antarctica up to 1.1.1.11
external/public-domain/tz/dist/asia up to 1.1.1.21
external/public-domain/tz/dist/australasia up to 1.1.1.16
external/public-domain/tz/dist/backward up to 1.1.1.9
external/public-domain/tz/dist/backzone up to 1.1.1.15
external/public-domain/tz/dist/etcetera up to 1.1.1.3
external/public-domain/tz/dist/europe up to 1.1.1.22
external/public-domain/tz/dist/factory up to 1.1.1.3
external/public-domain/tz/dist/leap-seconds.list up to 1.1.1.10
external/public-domain/tz/dist/leapseconds up to 1.1.1.11
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.7
external/public-domain/tz/dist/northamerica up to 1.1.1.20
external/public-domain/tz/dist/pacificnew up to 1.1.1.2
external/public-domain/tz/dist/southamerica up to 1.1.1.15
external/public-domain/tz/dist/systemv up to 1.1.1.2
external/public-domain/tz/dist/theory.html up to 1.1.1.5
external/public-domain/tz/dist/version up to 1.1.1.10
external/public-domain/tz/dist/yearistype.sh up to 1.1.1.2
external/public-domain/tz/dist/zishrink.awk up to 1.1.1.4
external/public-domain/tz/dist/zone.tab up to 1.1.1.15
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.17
external/public-domain/tz/dist/zoneinfo2tdf.pl up to 1.1.1.2
doc/3RDPARTY 1.1568 (patch
Import tzdata2018f from ftp://ftp.iana.org/tz/releases/tzdata2018f.tar.gz
Volgograd moves from +03 to +04 on 2018-10-28.
Fiji ends DST 2019-01-13, not 2019-01-20.
Most of Chile changes DST dates, effective 2019-04-06.
Plus corrections to North Korea's 2018-05-05 and China's April 1988
updates (getting the actual time/date of the transition correct)
Corrections for Macau pre 1992, Japan in late 1940's - early 1950's,
and China (Shanghai) 1940's. The Phillipines get their timezone
name abbreviations back.
@
text
@a0 2
# tzdb data for Asia and environs
d9 1
a9 1
# From Paul Eggert (2018-06-19):
d38 1
a38 2
# The following alphabetic abbreviations appear in these tables
# (corrections are welcome):
a46 1
# 8:00 PST PDT* Philippine Standard Time
a51 1
# *I invented the abbreviation PDT; see "Philippines" below.
a283 23
# From Paul Eggert (2018-10-02):
# The following comes from Table 1 of:
# Li Yu. Research on the daylight saving movement in 1940s Shanghai.
# Nanjing Journal of Social Sciences. 2014;(2):144-50.
# http://oversea.cnki.net/kns55/detail.aspx?dbname=CJFD2014&filename=NJSH201402020
# The table lists dates only; I am guessing 00:00 and 24:00 transition times.
# Also, the table lists the planned end of DST in 1949, but the corresponding
# zone line cuts this off on May 28, when the Communists took power.
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Shang 1940 only - Jun 1 0:00 1:00 D
Rule Shang 1940 only - Oct 12 24:00 0 S
Rule Shang 1941 only - Mar 15 0:00 1:00 D
Rule Shang 1941 only - Nov 1 24:00 0 S
Rule Shang 1942 only - Jan 31 0:00 1:00 D
Rule Shang 1945 only - Sep 1 24:00 0 S
Rule Shang 1946 only - May 15 0:00 1:00 D
Rule Shang 1946 only - Sep 30 24:00 0 S
Rule Shang 1947 only - Apr 15 0:00 1:00 D
Rule Shang 1947 only - Oct 31 24:00 0 S
Rule Shang 1948 1949 - May 1 0:00 1:00 D
Rule Shang 1948 1949 - Sep 30 24:00 0 S #plan
d310 12
a321 27
# From P Chan (2018-05-07):
# The start and end time of DST in China [from 1986 on] should be 2:00
# (i.e. 2:00 to 3:00 at the start and 2:00 to 1:00 at the end)....
# Government notices about summer time:
#
# 1986-04-12 http://www.zj.gov.cn/attach/zfgb/198608.pdf p.21-22
# (To establish summer time from 1986. On 4 May, set the clocks ahead one hour
# at 2 am. On 14 September, set the clocks backward one hour at 2 am.)
#
# 1987-02-15 http://www.gov.cn/gongbao/shuju/1987/gwyb198703.pdf p.114
# (Summer time in 1987 to start from 12 April until 13 September)
#
# 1987-09-09 http://www.gov.cn/gongbao/shuju/1987/gwyb198721.pdf p.709
# (From 1988, summer time to start from 2 am of the first Sunday of mid-April
# until 2 am of the first Sunday of mid-September)
#
# 1992-03-03 http://www.gov.cn/gongbao/shuju/1992/gwyb199205.pdf p.152
# (To suspend summer time from 1992)
#
# The first page of People's Daily on 12 April 1988 stating that summer time
# to begin on 17 April.
# http://data.people.com.cn/pic/101p/1988/04/1988041201.jpg
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule PRC 1986 only - May 4 2:00 1:00 D
Rule PRC 1986 1991 - Sep Sun>=11 2:00 0 S
Rule PRC 1987 1991 - Apr Sun>=11 2:00 1:00 D
d343 1
a343 1
# Guo Qing-sheng (National Time-Service Center, CAS, Xi'an 710600, China)
d346 1
a346 2
# (Zhongguo ke ji shi liao, 中国科技史料). 2003;24(1):5-9.
# http://oversea.cnki.net/kcms/detail/detail.aspx?filename=ZGKS200301000&dbname=CJFD2003
d523 1
a523 1
8:00 Shang C%sT 1949 May 28
d752 18
a769 134
#
# From P Chan (2018-05-10):
# * LegisMac
# http://legismac.safp.gov.mo/legismac/descqry/Descqry.jsf?lang=pt
# A database for searching titles of legal documents of Macau in
# Chinese and Portuguese. The term "HORÁRIO DE VERÃO" can be used for
# searching decrees about summer time.
# * Archives of Macao
# http://www.archives.gov.mo/en/bo/
# It contains images of old official gazettes.
# * The Macao Meteorological and Geophysical Bureau have a page listing the
# summer time history. But it is not complete and has some mistakes.
# http://www.smg.gov.mo/smg/geophysics/e_t_Summer%20Time.htm
# Macau adopted GMT+8 on 30 Oct 1904 to follow Hong Kong. Clocks were
# advanced by 25 minutes and 50 seconds. Which means the LMT used was
# +7:34:10. As stated in the "Portaria No. 204" dated 21 October 1904
# and published in the Official Gazette on 29 October 1904.
# http://igallery.icm.gov.mo/Images/Archives/BO/MO_AH_PUB_BO_1904_10/MO_AH_PUB_BO_1904_10_00025_Grey.JPG
#
# Therefore the 1911 decree of Portugal did not change time in Macau.
#
# From LegisMac, here is a list of decrees that changed the time ...
# [Decree Gazette-no. date; titles omitted in this quotation]
# DIL 732 BOCM 51 1941.12.20
# DIL 764 BOCM 9S 1942.04.30
# DIL 781 BOCM 21 1942.10.10
# PT 3434 BOCM 8S 1943.04.17
# PT 3504 BOCM 20 1943.09.25
# PT 3843 BOCM 39 1945.09.29
# PT 3961 BOCM 17 1946.04.27
# PT 4026 BOCM 39 1946.09.28
# PT 4153 BOCM 16 1947.04.10
# PT 4271 BOCM 48 1947.11.29
# PT 4374 BOCM 18 1948.05.01
# PT 4465 BOCM 44 1948.10.30
# PT 4590 BOCM 14 1949.04.02
# PT 4666 BOCM 44 1949.10.29
# PT 4771 BOCM 12 1950.03.25
# PT 4838 BOCM 43 1950.10.28
# PT 4946 BOCM 12 1951.03.24
# PT 5025 BO 43 1951.10.27
# PT 5149 BO 14 1952.04.05
# PT 5251 BO 43 1952.10.25
# PT 5366 BO 13 1953.03.28
# PT 5444 BO 44 1953.10.31
# PT 5540 BO 12 1954.03.20
# PT 5589 BO 44 1954.10.30
# PT 5676 BO 12 1955.03.19
# PT 5739 BO 45 1955.11.05
# PT 5823 BO 11 1956.03.17
# PT 5891 BO 44 1956.11.03
# PT 5981 BO 12 1957.03.23
# PT 6064 BO 43 1957.10.26
# PT 6172 BO 12 1958.03.22
# PT 6243 BO 43 1958.10.25
# PT 6341 BO 12 1959.03.21
# PT 6411 BO 43 1959.10.24
# PT 6514 BO 11 1960.03.12
# PT 6584 BO 44 1960.10.29
# PT 6721 BO 10 1961.03.11
# PT 6815 BO 43 1961.10.28
# PT 6947 BO 10 1962.03.10
# PT 7080 BO 43 1962.10.27
# PT 7218 BO 12 1963.03.23
# PT 7340 BO 43 1963.10.26
# PT 7491 BO 11 1964.03.14
# PT 7664 BO 43 1964.10.24
# PT 7846 BO 15 1965.04.10
# PT 7979 BO 42 1965.10.16
# PT 8146 BO 15 1966.04.09
# PT 8252 BO 41 1966.10.08
# PT 8429 BO 15 1967.04.15
# PT 8540 BO 41 1967.10.14
# PT 8735 BO 15 1968.04.13
# PT 8860 BO 41 1968.10.12
# PT 9035 BO 16 1969.04.19
# PT 9156 BO 42 1969.10.18
# PT 9328 BO 15 1970.04.11
# PT 9418 BO 41 1970.10.10
# PT 9587 BO 14 1971.04.03
# PT 9702 BO 41 1971.10.09
# PT 38-A/72 BO 14 1972.04.01
# PT 126-A/72 BO 41 1972.10.07
# PT 61/73 BO 14 1973.04.07
# PT 182/73 BO 40 1973.10.06
# PT 282/73 BO 51 1973.12.22
# PT 177/74 BO 41 1974.10.12
# PT 51/75 BO 15 1975.04.12
# PT 173/75 BO 41 1975.10.11
# PT 67/76/M BO 14 1976.04.03
# PT 169/76/M BO 41 1976.10.09
# PT 78/79/M BO 19 1979.05.12
# PT 166/79/M BO 42 1979.10.20
# Note that DIL 732 does not belong to "HORÁRIO DE VERÃO" according to
# LegisMac.... Note that between 1942 and 1945, the time switched
# between GMT+9 and GMT+10. Also in 1965 and 1965 the DST ended at 2:30am.
# From Paul Eggert (2018-05-10):
# The 1904 decree says that Macau changed from the meridian of
# Fortaleza do Monte, presumably the basis for the 7:34:10 for LMT.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Macau 1942 1943 - Apr 30 23:00 1:00 -
Rule Macau 1942 only - Nov 17 23:00 0 -
Rule Macau 1943 only - Sep 30 23:00 0 S
Rule Macau 1946 only - Apr 30 23:00s 1:00 D
Rule Macau 1946 only - Sep 30 23:00s 0 S
Rule Macau 1947 only - Apr 19 23:00s 1:00 D
Rule Macau 1947 only - Nov 30 23:00s 0 S
Rule Macau 1948 only - May 2 23:00s 1:00 D
Rule Macau 1948 only - Oct 31 23:00s 0 S
Rule Macau 1949 1950 - Apr Sat>=1 23:00s 1:00 D
Rule Macau 1949 1950 - Oct lastSat 23:00s 0 S
Rule Macau 1951 only - Mar 31 23:00s 1:00 D
Rule Macau 1951 only - Oct 28 23:00s 0 S
Rule Macau 1952 1953 - Apr Sat>=1 23:00s 1:00 D
Rule Macau 1952 only - Nov 1 23:00s 0 S
Rule Macau 1953 1954 - Oct lastSat 23:00s 0 S
Rule Macau 1954 1956 - Mar Sat>=17 23:00s 1:00 D
Rule Macau 1955 only - Nov 5 23:00s 0 S
Rule Macau 1956 1964 - Nov Sun>=1 03:30 0 S
Rule Macau 1957 1964 - Mar Sun>=18 03:30 1:00 D
Rule Macau 1965 1973 - Apr Sun>=16 03:30 1:00 D
Rule Macau 1965 1966 - Oct Sun>=16 02:30 0 S
Rule Macau 1967 1976 - Oct Sun>=16 03:30 0 S
Rule Macau 1973 only - Dec 30 03:30 1:00 D
Rule Macau 1975 1976 - Apr Sun>=16 03:30 1:00 D
Rule Macau 1979 only - May 13 03:30 1:00 D
Rule Macau 1979 only - Oct Sun>=16 03:30 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Macau 7:34:10 - LMT 1904 Oct 30
8:00 - CST 1941 Dec 21 23:00
9:00 Macau +09/+10 1945 Sep 30 24:00
a1473 20
# From Phake Nick (2018-09-27):
# [T]he webpage authored by National Astronomical Observatory of Japan
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EF.html
# ... mentioned that using Showa 23 (year 1948) as example, 13pm of September
# 11 in summer time will equal to 0am of September 12 in standard time.
# It cited a document issued by the Liaison Office which briefly existed
# during the postwar period of Japan, where the detail on implementation
# of the summer time is described in the document.
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EFB2C6BBFEB9EFA4CEBCC2BBDCA4CBA4C4A4A4A4C6.pdf
# The text in the document do instruct a fall back to occur at
# September 11, 13pm in summer time, while ordinary citizens can
# change the clock before they sleep.
#
# From Paul Eggert (2018-09-27):
# This instruction is equivalent to "Sat>=8 25:00", so use that. zic treats
# it like "Sun>=9 01:00", which is not quite the same but is the best we can
# do in any POSIX or C platform. The "25:00" assumes zic from 2007 or later,
# which should be safe now.
d1476 1
a1476 1
Rule Japan 1948 1951 - Sep Sat>=8 25:00 0 S
d1858 1
a1858 1
# so include timestamps before 1963.
a1997 4
#
# From Paul Eggert (2018-05-04):
# The BBC reported that the transition was from 23:30 to 24:00 today.
# https://www.bbc.com/news/world-asia-44010705
d2010 1
a2010 1
8:30 - KST 2018 May 4 23:30
d2760 7
a2766 23
# From Paul Goyette (2018-06-15):
# In the Philippines, there is a national law, Republic Act No. 10535
# which declares the official time here as "Philippine Standard Time".
# The act [1] even specifies use of PST as the abbreviation, although
# the FAQ provided by PAGASA [2] uses the "acronym PhST to distinguish
# it from the Pacific Standard Time (PST)."
# [1] http://www.officialgazette.gov.ph/2013/05/15/republic-act-no-10535/
# [2] https://www1.pagasa.dost.gov.ph/index.php/astronomy/philippine-standard-time#republic-act-10535
#
# From Paul Eggert (2018-06-19):
# I surveyed recent news reports, and my impression is that "PST" is
# more popular among reliable English-language news sources. This is
# not just a measure of Google hit counts: it's also the sizes and
# influence of the sources. There is no current abbreviation for DST,
# so use "PDT", the usual American style.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Phil 1936 only - Nov 1 0:00 1:00 D
Rule Phil 1937 only - Feb 1 0:00 0 S
Rule Phil 1954 only - Apr 12 0:00 1:00 D
Rule Phil 1954 only - Jul 1 0:00 0 S
Rule Phil 1978 only - Mar 22 0:00 1:00 D
Rule Phil 1978 only - Sep 21 0:00 0 S
d2770 3
a2772 3
8:00 Phil P%sT 1942 May
9:00 - JST 1944 Nov
8:00 Phil P%sT
d2783 1
a2783 1
# From Paul Eggert (2018-08-29):
d2785 1
a2785 1
# standardized until 1968 or so; we don't know exactly when, and possibly it
a2791 19
# Timekeeping differed depending on who you were and which part of Saudi
# Arabia you were in. In 1969, Elias Antar wrote that although a common
# practice had been to set one's watch to 12:00 (i.e., midnight) at sunset -
# which meant that the time on one side of a mountain could differ greatly from
# the time on the other side - many foreigners set their watches to 6pm
# instead, while airlines instead used UTC +03 (except in Dhahran, where they
# used UTC +04), Aramco used UTC +03 with DST, and the Trans-Arabian Pipe Line
# Company used Aramco time in eastern Saudi Arabia and airline time in western.
# (The American Military Aid Advisory Group used plain UTC.) Antar writes,
# "A man named Higgins, so the story goes, used to run a local power
# station. One day, the whole thing became too much for Higgins and he
# assembled his staff and laid down the law. 'I've had enough of this,' he
# shrieked. 'It is now 12 o'clock Higgins Time, and from now on this station is
# going to run on Higgins Time.' And so, until last year, it did." See:
# Antar E. Dinner at When? Saudi Aramco World, 1969 March/April. 2-3.
# http://archive.aramcoworld.com/issue/196902/dinner.at.when.htm
# newspapers.com says a similar story about Higgins was published in the Port
# Angeles (WA) Evening News, 1965-03-10, page 5, but I lack access to the text.
#
d2801 1
a2801 2
# the country. Presumably this is documenting airline time. Ignore this,
# as it's before our 1970 cutoff.
@
1.1.1.16.4.6
log
@Pull up the following, requested by kre in ticket #1150:
doc/3RDPARTY 1.1581 (patch)
distrib/sets/lists/base/mi 1.1196 (patch)
external/public-domain/tz/dist/Makefile up to 1.1.1.23
external/public-domain/tz/dist/NEWS up to 1.1.1.26
external/public-domain/tz/dist/TZDATA_VERSION up to 1.16
external/public-domain/tz/dist/africa up to 1.1.1.19
external/public-domain/tz/dist/asia up to 1.1.1.22
external/public-domain/tz/dist/australasia up to 1.1.1.17
external/public-domain/tz/dist/leapseconds up to 1.1.1.12
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.8
external/public-domain/tz/dist/northamerica up to 1.1.1.22
external/public-domain/tz/dist/theory.html up to 1.1.1.7
external/public-domain/tz/dist/version up to 1.1.1.13
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.4
external/public-domain/tz/dist/zone.tab up to 1.1.1.16
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.18
Import tzdata2018h from ftp://ftp.iana.org/tz/releases/tzdata2018h.tar.gz
Summary of changes in tzdata2018h (2018-12-23 17:59:32 -0800):
Qyzylorda (aka Kyzylorda) oblast in Kazakhstan moved from +06 to
+05 on 2018-12-21. This is a zone split as Qostanay (aka
Kostanay) did not switch, so create a zone Asia/Qostanay.
Metlakatla, Alaska observes PST this winter only.
Add predictions for Iran from 2038 through 2090.
Changes to some old timestamps for Nauru (1979) Guam (1959-77),
Hong Kong (1904, 1941, 1945, 1952) (others in Pacific during WWII)
Summary of changes in tzdata2018i (2018-12-30 11:05:43 -0800):
Due to a change in government, Sao Tome and Principe switches back
from +01 to +00 on 2019-01-01 at 02:00.
@
text
@d589 1
a589 71
# From Phake Nick (2018-10-27):
# According to Singaporean newspaper
# http://eresources.nlb.gov.sg/newspapers/Digitised/Article/singfreepresswk19041102-1.2.37
# the day that Hong Kong start using GMT+8 should be Oct 30, 1904.
#
# From Paul Eggert (2018-11-17):
# Hong Kong had a time ball near the Marine Police Station, Tsim Sha Tsui.
# "The ball was raised manually each day and dropped at exactly 1pm
# (except on Sundays and Government holidays)."
# Dyson AD. From Time Ball to Atomic Clock. Hong Kong Government. 1983.
#
# "From 1904 October 30 the time-ball at Hong Kong has been dropped by order
# of the Governor of the Colony at 17h 0m 0s G.M.T., which is 23m 18s.14 in
# advance of 1h 0m 0s of Hong Kong mean time."
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc.
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382
#
# From Joseph Myers (2018-11-18):
# An astronomer before 1925 referring to GMT would have been using the old
# astronomical convention where the day started at noon, not midnight.
#
# From Steve Allen (2018-11-17):
# Meteorological Observations made at the Hongkong Observatory in the year 1904
# page 4
# ... the log of drop times in Table II shows that on Sunday 1904-10-30 the
# ball was dropped. So that looks like a special case drop for the sake
# of broadcasting the new local time.
#
# From Phake Nick (2018-11-18):
# According to The Hong Kong Weekly Press, 1904-10-29, p.324, the
# governor of Hong Kong at the time stated that "We are further desired to
# make it known that the change will be effected by firing the gun and by the
# dropping of the Ball at 23min. 18sec. before one."
# From Paul Eggert (2018-11-18):
# See for this; unfortunately Flash is required.
# From Phake Nick (2018-10-26):
# I went to check microfilm records stored at Hong Kong Public Library....
# on September 30 1941, according to Ta Kung Pao (Hong Kong edition), it was
# stated that fallback would occur on the next day (the 1st)'s "03:00 am (Hong
# Kong Time 04:00 am)" and the clock will fall back for a half hour. (03:00
# probably refer to the time commonly used in mainland China at the time given
# the paper's background) ... the sunrise/sunset time given by South China
# Morning Post for October 1st was indeed moved by half an hour compares to
# before. After that, in December, the battle to capture Hong Kong started and
# the library doesn't seems to have any record stored about press during that
# period of time. Some media resumed publication soon after that within the
# same month, but there were not much information about time there. Later they
# started including a radio program guide when they restored radio service,
# explicitly mentioning it use Tokyo standard time, and later added a note
# saying it's half an hour ahead of the old Hong Kong standard time, and it
# also seems to indicate that Hong Kong was not using GMT+8 when it was
# captured by Japan.
#
# Image of related sections on newspaper:
# * 1941-09-30, Ta Kung Pao (Hong Kong), "Winter Time start tomorrow".
# https://i.imgur.com/6waY51Z.jpg (Chinese)
# * 1941-09-29, South China Morning Post, Information on sunrise/sunset
# time and other things for September 30 and October 1.
# https://i.imgur.com/kCiUR78.jpg
# * 1942-02-05. The Hong Kong News, Radio Program Guide.
# https://i.imgur.com/eVvDMzS.jpg
# * 1941-06-14. Hong Kong Daily Press, Daylight Saving from 3am Tomorrow.
# https://i.imgur.com/05KkvtC.png
# * 1941-09-30, Hong Kong Daily Press, Winter Time Warning.
# https://i.imgur.com/dge4kFJ.png
# Also, the Liberation day of Hong Kong after WWII which British rule
# over the territory resumed was August 30, 1945, which I think should
# be the termination date for the use of JST in the territory....
# From Paul Eggert (2018-11-17):
d591 2
a592 2
# https://www.hko.gov.hk/gts/time/Summertime.htm
# as of 2014-06-19:
d594 1
a594 1
# 1941 15 Jun to 30 Sep
d605 1
a605 1
# 1952 6 Apr to 2 Nov
d634 6
a639 9
# The page does not give times of day for transitions,
# or dates for the 1942 and 1945 transitions.
# The Japanese occupation of Hong Kong began 1941-12-25.
# The Japanese surrender of Hong Kong was signed 1945-09-16; see:
# Heaver S. The days after the Pacific war ended: unsettling times
# in Hong Kong. Post Magazine. 2016-06-13.
# https://www.scmp.com/magazines/post-magazine/article/1852990/days-after-pacific-war-ended-unsettling-times-hong-kong
# For lack of anything better, use start of those days as the
# transition times.
d642 2
d650 1
a650 1
Rule HK 1952 1953 - Nov Sun>=1 3:30 0 -
d652 1
d662 3
a664 5
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30 0:36:42
8:00 - HKT 1941 Jun 15 3:30
8:00 1:00 HKST 1941 Oct 1 4:00
8:30 - HKT 1941 Dec 25
9:00 - JST 1945 Sep 16
a1059 10
# British astronomer Henry Park Hollis disliked India Standard Time's offset:
# "A new time system has been proposed for India, Further India, and Burmah.
# The scheme suggested is that the times of the meridians 5½ and 6½ hours
# east of Greenwich should be adopted in these territories. No reason is
# given why hourly meridians five hours and six hours east should not be
# chosen; a plan which would bring the time of India into harmony with
# that of almost the whole of the civilised world."
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc.
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382
d1230 1
a1230 1
# From Paul Eggert (2018-11-30):
d1232 4
a1235 57
# I used the following code in GNU Emacs 26.1 to generate the "Rule Iran"
# lines from 2008 through 2087. Emacs 26.1 uses Ed Reingold's
# cal-persia implementation of Birashk's approximation, which in the
# 2008-2087 range disagrees with the the astronomical Persian calendar
# for Persian years 1404 (Gregorian 2025) and 1437 (Gregorian 2058),
# so the following code special-case those years. See Table 15.1, page 264, of:
# Edward M. Reingold and Nachum Dershowitz, Calendrical Calculations:
# The Ultimate Edition, Cambridge University Press (2018).
# https://www.cambridge.org/fr/academic/subjects/computer-science/computing-general-interest/calendrical-calculations-ultimate-edition-4th-edition
# Page 258, footnote 2, of this book says there is some dispute over what will
# happen in 2091 (and some other years after that), so this code
# stops in 2087, as 2088 and 2089 agree with the "max" rule below.
# (cl-loop
# initially (require 'cal-persia)
# with first-persian-year = 1387
# with last-persian-year = 1466
# ;; Exceptional years in the above range,
# ;; from Reingold & Dershowitz Table 15.1, page 264:
# with exceptional-persian-years = '(1404 1437)
# with range-start = nil
# for persian-year from first-persian-year to last-persian-year
# do
# (let*
# ((exceptional-year-offset
# (if (member persian-year exceptional-persian-years) 1 0))
# (beg-dst-absolute
# (+ (calendar-persian-to-absolute (list 1 1 persian-year))
# exceptional-year-offset))
# (end-dst-absolute
# (+ (calendar-persian-to-absolute (list 6 30 persian-year))
# exceptional-year-offset))
# (next-year-beg-dst-absolute
# (+ (calendar-persian-to-absolute (list 1 1 (1+ persian-year)))
# (if (member (1+ persian-year) exceptional-persian-years) 1 0)))
# (beg-dst (calendar-gregorian-from-absolute beg-dst-absolute))
# (end-dst (calendar-gregorian-from-absolute end-dst-absolute))
# (next-year-beg-dst (calendar-gregorian-from-absolute
# next-year-beg-dst-absolute))
# (year (calendar-extract-year beg-dst))
# (range-end (if range-start year "only")))
# (setq range-start (or range-start year))
# (when (or (/= (calendar-extract-day beg-dst)
# (calendar-extract-day next-year-beg-dst))
# (= persian-year last-persian-year))
# (insert
# (format
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t1:00\t-\n"
# range-start range-end
# (calendar-month-name (calendar-extract-month beg-dst) t)
# (calendar-extract-day beg-dst)))
# (insert
# (format
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t0\t-\n"
# range-start range-end
# (calendar-month-name (calendar-extract-month end-dst) t)
# (calendar-extract-day end-dst)))
# (setq range-start nil))))
d1270 51
a1320 103
Rule Iran 1978 1980 - Mar 20 24:00 1:00 -
Rule Iran 1978 only - Oct 20 24:00 0 -
Rule Iran 1979 only - Sep 18 24:00 0 -
Rule Iran 1980 only - Sep 22 24:00 0 -
Rule Iran 1991 only - May 2 24:00 1:00 -
Rule Iran 1992 1995 - Mar 21 24:00 1:00 -
Rule Iran 1991 1995 - Sep 21 24:00 0 -
Rule Iran 1996 only - Mar 20 24:00 1:00 -
Rule Iran 1996 only - Sep 20 24:00 0 -
Rule Iran 1997 1999 - Mar 21 24:00 1:00 -
Rule Iran 1997 1999 - Sep 21 24:00 0 -
Rule Iran 2000 only - Mar 20 24:00 1:00 -
Rule Iran 2000 only - Sep 20 24:00 0 -
Rule Iran 2001 2003 - Mar 21 24:00 1:00 -
Rule Iran 2001 2003 - Sep 21 24:00 0 -
Rule Iran 2004 only - Mar 20 24:00 1:00 -
Rule Iran 2004 only - Sep 20 24:00 0 -
Rule Iran 2005 only - Mar 21 24:00 1:00 -
Rule Iran 2005 only - Sep 21 24:00 0 -
Rule Iran 2008 only - Mar 20 24:00 1:00 -
Rule Iran 2008 only - Sep 20 24:00 0 -
Rule Iran 2009 2011 - Mar 21 24:00 1:00 -
Rule Iran 2009 2011 - Sep 21 24:00 0 -
Rule Iran 2012 only - Mar 20 24:00 1:00 -
Rule Iran 2012 only - Sep 20 24:00 0 -
Rule Iran 2013 2015 - Mar 21 24:00 1:00 -
Rule Iran 2013 2015 - Sep 21 24:00 0 -
Rule Iran 2016 only - Mar 20 24:00 1:00 -
Rule Iran 2016 only - Sep 20 24:00 0 -
Rule Iran 2017 2019 - Mar 21 24:00 1:00 -
Rule Iran 2017 2019 - Sep 21 24:00 0 -
Rule Iran 2020 only - Mar 20 24:00 1:00 -
Rule Iran 2020 only - Sep 20 24:00 0 -
Rule Iran 2021 2023 - Mar 21 24:00 1:00 -
Rule Iran 2021 2023 - Sep 21 24:00 0 -
Rule Iran 2024 only - Mar 20 24:00 1:00 -
Rule Iran 2024 only - Sep 20 24:00 0 -
Rule Iran 2025 2027 - Mar 21 24:00 1:00 -
Rule Iran 2025 2027 - Sep 21 24:00 0 -
Rule Iran 2028 2029 - Mar 20 24:00 1:00 -
Rule Iran 2028 2029 - Sep 20 24:00 0 -
Rule Iran 2030 2031 - Mar 21 24:00 1:00 -
Rule Iran 2030 2031 - Sep 21 24:00 0 -
Rule Iran 2032 2033 - Mar 20 24:00 1:00 -
Rule Iran 2032 2033 - Sep 20 24:00 0 -
Rule Iran 2034 2035 - Mar 21 24:00 1:00 -
Rule Iran 2034 2035 - Sep 21 24:00 0 -
Rule Iran 2036 2037 - Mar 20 24:00 1:00 -
Rule Iran 2036 2037 - Sep 20 24:00 0 -
Rule Iran 2038 2039 - Mar 21 24:00 1:00 -
Rule Iran 2038 2039 - Sep 21 24:00 0 -
Rule Iran 2040 2041 - Mar 20 24:00 1:00 -
Rule Iran 2040 2041 - Sep 20 24:00 0 -
Rule Iran 2042 2043 - Mar 21 24:00 1:00 -
Rule Iran 2042 2043 - Sep 21 24:00 0 -
Rule Iran 2044 2045 - Mar 20 24:00 1:00 -
Rule Iran 2044 2045 - Sep 20 24:00 0 -
Rule Iran 2046 2047 - Mar 21 24:00 1:00 -
Rule Iran 2046 2047 - Sep 21 24:00 0 -
Rule Iran 2048 2049 - Mar 20 24:00 1:00 -
Rule Iran 2048 2049 - Sep 20 24:00 0 -
Rule Iran 2050 2051 - Mar 21 24:00 1:00 -
Rule Iran 2050 2051 - Sep 21 24:00 0 -
Rule Iran 2052 2053 - Mar 20 24:00 1:00 -
Rule Iran 2052 2053 - Sep 20 24:00 0 -
Rule Iran 2054 2055 - Mar 21 24:00 1:00 -
Rule Iran 2054 2055 - Sep 21 24:00 0 -
Rule Iran 2056 2057 - Mar 20 24:00 1:00 -
Rule Iran 2056 2057 - Sep 20 24:00 0 -
Rule Iran 2058 2059 - Mar 21 24:00 1:00 -
Rule Iran 2058 2059 - Sep 21 24:00 0 -
Rule Iran 2060 2062 - Mar 20 24:00 1:00 -
Rule Iran 2060 2062 - Sep 20 24:00 0 -
Rule Iran 2063 only - Mar 21 24:00 1:00 -
Rule Iran 2063 only - Sep 21 24:00 0 -
Rule Iran 2064 2066 - Mar 20 24:00 1:00 -
Rule Iran 2064 2066 - Sep 20 24:00 0 -
Rule Iran 2067 only - Mar 21 24:00 1:00 -
Rule Iran 2067 only - Sep 21 24:00 0 -
Rule Iran 2068 2070 - Mar 20 24:00 1:00 -
Rule Iran 2068 2070 - Sep 20 24:00 0 -
Rule Iran 2071 only - Mar 21 24:00 1:00 -
Rule Iran 2071 only - Sep 21 24:00 0 -
Rule Iran 2072 2074 - Mar 20 24:00 1:00 -
Rule Iran 2072 2074 - Sep 20 24:00 0 -
Rule Iran 2075 only - Mar 21 24:00 1:00 -
Rule Iran 2075 only - Sep 21 24:00 0 -
Rule Iran 2076 2078 - Mar 20 24:00 1:00 -
Rule Iran 2076 2078 - Sep 20 24:00 0 -
Rule Iran 2079 only - Mar 21 24:00 1:00 -
Rule Iran 2079 only - Sep 21 24:00 0 -
Rule Iran 2080 2082 - Mar 20 24:00 1:00 -
Rule Iran 2080 2082 - Sep 20 24:00 0 -
Rule Iran 2083 only - Mar 21 24:00 1:00 -
Rule Iran 2083 only - Sep 21 24:00 0 -
Rule Iran 2084 2086 - Mar 20 24:00 1:00 -
Rule Iran 2084 2086 - Sep 20 24:00 0 -
Rule Iran 2087 only - Mar 21 24:00 1:00 -
Rule Iran 2087 only - Sep 21 24:00 0 -
#
# The following rules are approximations starting in the year 2088.
# These are the best post-2088 approximations available, given the
# restrictions of a single rule using ordinary Gregorian dates.
d1323 2
a1324 2
Rule Iran 2088 max - Mar 20 24:00 1:00 -
Rule Iran 2088 max - Sep 20 24:00 0 -
d1694 1
a1694 3
# Since 1938, all Japanese possessions have been like Asia/Tokyo,
# except that Truk (Chuuk), Ponape (Pohnpei), and Jaluit (Kosrae) did not
# switch from +10 to +09 until 1941-04-01; see the 'australasia' file.
d1984 2
a1985 4
# From Alexander Konzurovski (2018-12-20):
# Qyzyolrda Region (Asia/Qyzylorda) is changing its time zone from
# UTC+6 to UTC+5 effective December 21st, 2018. The legal document is
# located here: http://adilet.zan.kz/rus/docs/P1800000817 (russian language).
d1999 2
d2011 14
a2024 2
6:00 - +06 2018 Dec 21 0:00
5:00 - +05
a2025 13
# Qostanay (aka Kostanay, Kustanay) (KZ-KUS)
# The 1991/2 rules are unclear partly because of the 1997 Turgai
# reorganization.
Zone Asia/Qostanay 4:14:28 - LMT 1924 May 2
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
6:00 - +06
a2118 22
# From Phake Nick (2018-10-27):
# 1. According to official announcement from Korean government, the DST end
# date in South Korea should be
# 1955-09-08 without specifying time
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027977557
# 1956-09-29 without specifying time
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027978341
# 1957-09-21 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027979690#3
# 1958-09-20 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027981189
# 1959-09-19 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027982974#2
# 1960-09-17 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0028044104
# ...
# 2.... https://namu.wiki/w/대한민국%20표준시 ... [says]
# when Korea was using GMT+8:30 as standard time, the international
# aviation/marine/meteorological industry in the country refused to
# follow and continued to use GMT+9:00 for interoperability.
d2120 14
a2133 14
Rule ROK 1948 only - Jun 1 0:00 1:00 D
Rule ROK 1948 only - Sep 12 24:00 0 S
Rule ROK 1949 only - Apr 3 0:00 1:00 D
Rule ROK 1949 1951 - Sep Sat>=7 24:00 0 S
Rule ROK 1950 only - Apr 1 0:00 1:00 D
Rule ROK 1951 only - May 6 0:00 1:00 D
Rule ROK 1955 only - May 5 0:00 1:00 D
Rule ROK 1955 only - Sep 8 24:00 0 S
Rule ROK 1956 only - May 20 0:00 1:00 D
Rule ROK 1956 only - Sep 29 24:00 0 S
Rule ROK 1957 1960 - May Sun>=1 0:00 1:00 D
Rule ROK 1957 1960 - Sep Sat>=17 24:00 0 S
Rule ROK 1987 1988 - May Sun>=8 2:00 1:00 D
Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S
a2922 5
# From Paul Eggert (2018-11-18):
# The Spanish initially used American (west-of-Greenwich) time.
# It is unknown what time Manila kept when the British occupied it from
# 1762-10-06 through 1764-04; for now assume it kept American time.
d3008 2
a3009 2
# Also see: Antar EN. Arabian flying is confusing.
# Port Angeles (WA) Evening News. 1965-03-10. page 3.
@
1.1.1.16.4.7
log
@Pull up the following, requested by kre in ticket #1631:
external/public-domain/tz/dist/systemv delete
external/public-domain/tz/dist/pacificnew delete
external/public-domain/tz/dist/yearistype.sh delete
external/public-domain/tz/dist/Makefile up to 1.1.1.29
external/public-domain/tz/dist/NEWS up to 1.1.1.32
external/public-domain/tz/dist/README up to 1.1.1.9
external/public-domain/tz/dist/TZDATA_VERSION up to 1.22
external/public-domain/tz/dist/africa up to 1.1.1.23
external/public-domain/tz/dist/antarctica up to 1.1.1.13
external/public-domain/tz/dist/asia up to 1.1.1.27
external/public-domain/tz/dist/australasia up to 1.1.1.20
external/public-domain/tz/dist/backward up to 1.1.1.11
external/public-domain/tz/dist/backzone up to 1.1.1.19
external/public-domain/tz/dist/checktab.awk up to 1.1.1.10
external/public-domain/tz/dist/etcetera up to 1.1.1.4
external/public-domain/tz/dist/europe up to 1.1.1.29
external/public-domain/tz/dist/factory up to 1.1.1.4
external/public-domain/tz/dist/iso3166.tab up to 1.1.1.6
external/public-domain/tz/dist/leap-seconds.list up to 1.1.1.14
external/public-domain/tz/dist/leapseconds up to 1.1.1.16
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.11
external/public-domain/tz/dist/northamerica up to 1.1.1.26
external/public-domain/tz/dist/southamerica up to 1.1.1.17
external/public-domain/tz/dist/theory.html up to 1.1.1.11
external/public-domain/tz/dist/version up to 1.1.1.19
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.5
external/public-domain/tz/dist/zishrink.awk up to 1.1.1.7
external/public-domain/tz/dist/zone.tab up to 1.1.1.18
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.20
external/public-domain/tz/dist/zoneinfo2tdf.pl up to 1.1.1.4
distrib/sets/lists/base/mi (apply patch)
doc/3RDPARTY (apply patch)
external/public-domain/tz/share/zoneinfo/Makefile (apply patch)
Update tzdate from 2018i to 2020d
@
text
@d11 1
a11 1
# From Paul Eggert (2019-07-11):
d50 1
a50 2
# 8:00 HKT HKST Hong Kong (HKWT* for Winter Time in late 1941)
# 8:00 PST PDT* Philippines
d55 2
a56 1
# *I invented the abbreviations HKWT and PDT; see below.
d73 1
a73 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d87 1
a87 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d117 1
a117 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d120 1
a120 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d143 1
a143 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d146 1
a146 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d230 1
a230 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d234 1
a234 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d244 1
a244 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d255 1
a255 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d261 1
a261 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d276 1
a276 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
a288 21
# From Phake Nick (2020-04-15):
# According to this news report:
# http://news.sina.com.cn/c/2004-09-01/19524201403.shtml
# on April 11, 1919, newspaper in Shanghai said clocks in Shanghai will spring
# forward for an hour starting from midnight of that Saturday. The report did
# not mention what happened in Shanghai thereafter, but it mentioned that a
# similar trial in Tianjin which ended at October 1st as citizens are told to
# recede the clock on September 30 from 12:00pm to 11:00pm. The trial at
# Tianjin got terminated in 1920.
#
# From Paul Eggert (2020-04-15):
# The Returns of Trade and Trade Reports, page 711, says "Daylight saving was
# given a trial during the year, and from the 12th April to the 1st October
# the clocks were all set one hour ahead of sun time. Though the scheme was
# generally esteemed a success, it was announced early in 1920 that it would
# not be repeated."
#
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Shang 1919 only - Apr 12 24:00 1:00 D
Rule Shang 1919 only - Sep 30 24:00 0 S
a296 2
# From Phake Nick (2020-04-15):
d298 1
a298 82
# For the history of time in Shanghai between 1940-1942, the situation is
# actually slightly more complex than the table [below].... At the time,
# there were three different authorities in Shanghai, including Shanghai
# International Settlement, a settlement established by western countries with
# its own westernized form of government, Shanghai French Concession, similar
# to the international settlement but is controlled by French, and then the
# rest of the city of Shanghai, which have already been controlled by Japanese
# force through a puppet local government (Wang Jingwei regime). It was
# additionally complicated by the circumstances that, according to the 1940s
# Shanghai summer time essay cited in the database, some
# departments/businesses/people in the Shanghai city itself during that time
# period, refused to change their clock and instead only changed their opening
# hours.
#
# For example, as quoted in the article, in 1940, other than the authority
# itself, power, tram, bus companies, cinema, department stores, and other
# public service organizations have all decided to follow the summer time and
# spring forward the clock. On the other hand, the custom office refused to
# spring forward the clock because of worry on mechanical wear to the physical
# clock, postal office refused to spring forward because of disruption to
# business and log-keeping, although they did changed their office hour to
# match rest of the city. So is travel agents, and also weather
# observatory. It is said both time standards had their own supporters in the
# city at the time, those who prefer new time standard would have moved their
# clock while those who prefer the old time standard would keep their clock
# unchange, and there were different clocks that use different time standard
# in the city at the time for people who use different time standard to adjust
# their clock to their preferred time.
#
# a. For the 1940 May 31 spring forward, the essay claim that it was
# coordinared between the international settlement authority and the French
# concession authority and have gathered support from Hong Kong and Xiamen,
# that it would spring forward an hour from May 31 "midnight", and the essay
# claim "Hong Kong government implemented the spring forward in the same time
# on the same date as Shanghai".
#
# b. For the 1940 fall back, it was said that they initially intended to do
# so on September 30 00:59 at night, however they postponed it to October 12
# after discussion with relevant parties. However schools restored to the
# original schedule ten days earlier.
#
# c. For the 1941 spring forward, it is said to start from March 15
# "following the previous year's method", and in addition to that the essay
# cited an announcement in 1941 from the Wang regime which said the Special
# City of Shanghai under Wang regime control will follow the DST rule set by
# the Settlements, irrespective of the original DST plan announced by the Wang
# regime for other area under its control(April 1 to September 30). (no idea
# to situation before that announcement)
#
# d. For the 1941 fall back, it was said that the fall back would occurs at
# the end of September (A newspaper headline cited by the essay, published on
# October 1, 1941, have the headlines which said "French Concession would
# rewind to the old clock this morning), but it ultimately didn't happen due
# to disagreement between the international settlement authority and the
# French concession authority, and the fall back ultimately occurred on
# November 1.
#
# e. In 1941 December, Japan have officially started war with the United
# States and the United Kingdom, and in Shanghai they have marched into the
# international settlement, taken over its control
#
# f. For the 1942 spring forward, the essay said that the spring forward
# started on January 31. It said this time the custom office and postal
# department will also change their clocks, unlike before.
#
# g. The essay itself didn't cover any specific changes thereafter until the
# end of the war, it quoted a November 1942 command from the government of the
# Wang regime, which claim the daylight saving time applies year round during
# the war. However, the essay ambiguously said the period is "February 1 to
# September 30", which I don't really understand what is the meaning of such
# period in the context of year round implementation here.. More researches
# might be needed to show exactly what happened during that period of time.
# From Phake Nick (2020-04-15):
# According to a Japanese tour bus pamphlet in Nanjing area believed to be
# from around year 1941: http://www.tt-museum.jp/tairiku_0280_nan1941.html ,
# the schedule listed was in the format of Japanese time. Which indicate some
# use of the Japanese time (instead of syncing by DST) might have occurred in
# the Yangtze river delta area during that period of time although the scope
# of such use will need to be investigated to determine.
#
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d361 1
a361 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d564 1
a564 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d575 1
a575 1
# Hong Kong
d585 3
a587 1
# think 3:30 is correct.
d655 3
d659 1
a659 43
# From Paul Eggert (2019-07-11):
# "Hong Kong winter time" is considered to be daylight saving.
# "Hong Kong had adopted daylight saving on June 15 as a wartime measure,
# clocks moving forward one hour until October 1, when they would be put back
# by just half an hour for 'Hong Kong Winter time', so that daylight saving
# operated year round." -- Low Z. The longest day: when wartime Hong Kong
# introduced daylight saving. South China Morning Post. 2019-06-28.
# https://www.scmp.com/magazines/post-magazine/short-reads/article/3016281/longest-day-when-wartime-hong-kong-introduced
# From P Chan (2018-12-31):
# * According to the Hong Kong Daylight-Saving Regulations, 1941, the
# 1941 spring-forward transition was at 03:00.
# http://sunzi.lib.hku.hk/hkgro/view/g1941/304271.pdf
# http://sunzi.lib.hku.hk/hkgro/view/g1941/305516.pdf
# * According to some articles from South China Morning Post, +08 was
# resumed on 1945-11-18 at 02:00.
# https://i.imgur.com/M2IsZ3c.png
# https://i.imgur.com/iOPqrVo.png
# https://i.imgur.com/fffcGDs.png
# * Some newspapers ... said the 1946 spring-forward transition was on
# 04-21 at 00:00. The Kung Sheung Evening News 1946-04-20 (Chinese)
# https://i.imgur.com/ZSzent0.png
# https://mmis.hkpl.gov.hk///c/portal/cover?c=QF757YsWv5%2FH7zGe%2FKF%2BFLYsuqGhRBfe p.4
# The Kung Sheung Daily News 1946-04-21 (Chinese)
# https://i.imgur.com/7ecmRlcm.png
# https://mmis.hkpl.gov.hk///c/portal/cover?c=QF757YsWv5%2BQBGt1%2BwUj5qG2GqtwR3Wh p.4
# * According to the Summer Time Ordinance (1946), the fallback
# transitions between 1946 and 1952 were at 03:30 Standard Time (+08)
# http://oelawhk.lib.hku.hk/archive/files/bb74b06a74d5294620a15de560ab33c6.pdf
# * Some other laws and regulations related to DST from 1953 to 1979
# Summer Time Ordinance 1953
# https://i.imgur.com/IOlJMav.jpg
# Summer Time (Amendment) Ordinance 1965
# https://i.imgur.com/8rofeLa.jpg
# Interpretation and General Clauses Ordinance (1966)
# https://i.imgur.com/joy3msj.jpg
# Emergency (Summer Time) Regulation 1973
# Interpretation and General Clauses (Amendment) Ordinance 1977
# https://i.imgur.com/RaNqnc4.jpg
# Resolution of the Legislative Council passed on 9 May 1979
# https://www.legco.gov.hk/yr78-79/english/lc_sitg/hansard/h790509.pdf#page=39
# From Paul Eggert (2020-04-15):
d661 2
a662 2
# https://www.hko.gov.hk/en/gts/time/Summertime.htm
# as of 2020-02-10:
d670 1
a670 1
# 1947 13 Apr to 30 Nov
d707 15
a721 8
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule HK 1946 only - Apr 21 0:00 1:00 S
Rule HK 1946 only - Dec 1 3:30s 0 -
Rule HK 1947 only - Apr 13 3:30s 1:00 S
Rule HK 1947 only - Nov 30 3:30s 0 -
Rule HK 1948 only - May 2 3:30s 1:00 S
Rule HK 1948 1952 - Oct Sun>=28 3:30s 0 -
a722 1
Rule HK 1953 1964 - Oct Sun>=31 3:30 0 -
d724 2
d729 3
a731 3
Rule HK 1979 only - May 13 3:30 1:00 S
Rule HK 1979 only - Oct 21 3:30 0 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d733 1
a733 1
8:00 - HKT 1941 Jun 15 3:00
d735 2
a736 2
8:00 0:30 HKWT 1941 Dec 25
9:00 - JST 1945 Nov 18 2:00
d843 1
a843 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d860 1
a860 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d969 1
a969 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d998 1
a998 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1027 1
a1027 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1037 1
a1037 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1086 1
a1086 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1123 1
a1123 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1189 1
a1189 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1241 1
a1241 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1317 3
a1319 3
# 2008-2087 range disagrees with the astronomical Persian calendar
# for Persian years 1404 (Gregorian 2025) and 1437 (Gregorian 2058), so
# the following code special-cases those years. See Table 15.1, page 264, of:
d1404 1
a1404 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1513 1
a1513 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1546 1
a1546 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1558 1
a1558 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
a1568 4
# For more info about the motivation for DST in Israel, see:
# Barak Y. Israel's Daylight Saving Time controversy. Israel Affairs.
# 2020-08-11. https://doi.org/10.1080/13537121.2020.1806564
d1590 1
a1590 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
a1622 18
# From Alois Treindl (2019-03-06):
# http://www.moin.gov.il/Documents/שעון%20קיץ/clock-50-years-7-2014.pdf
# From Isaac Starkman (2019-03-06):
# Summer time was in that period in 1980 and 1984, see
# https://www.ynet.co.il/articles/0,7340,L-3951073,00.html
# You can of course read it in translation.
# I checked the local newspapers for that years.
# It started on midnight and end at 01.00 am.
# From Paul Eggert (2019-03-06):
# Also see this thread about the moin.gov.il URL:
# https://mm.icann.org/pipermail/tz/2018-November/027194.html
Rule Zion 1980 only - Aug 2 0:00 1:00 D
Rule Zion 1980 only - Sep 13 1:00 0 S
Rule Zion 1984 only - May 5 0:00 1:00 D
Rule Zion 1984 only - Aug 25 1:00 0 S
# From Shanks & Pottenger:
d1664 1
a1664 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1680 1
a1680 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1700 1
a1700 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1723 1
a1723 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1745 16
a1760 2
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Zion 2005 2012 - Apr Fri<=1 2:00 1:00 D
d1762 1
d1768 1
d1770 1
d1782 1
a1782 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1786 1
a1786 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
a1798 41
# From Paul Eggert (2020-01-19):
# Starting in the 7th century, Japan generally followed an ancient Chinese
# timekeeping system that divided night and day into six hours each,
# with hour length depending on season. In 1873 the government
# started requiring the use of a Western style 24-hour clock. See:
# Yulia Frumer, "Making Time: Astronomical Time Measurement in Tokugawa Japan"
# . As the tzdb code and
# data support only 24-hour clocks, its tables model timestamps before
# 1873 using Western-style local mean time.
# From Hideyuki Suzuki (1998-11-09):
# 'Tokyo' usually stands for the former location of Tokyo Astronomical
# Observatory: 139° 44' 40.90" E (9h 18m 58.727s), 35° 39' 16.0" N.
# This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996'
# edited by National Astronomical Observatory of Japan....
# JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST).
# The law is enacted on 1886-07-07.
# From Hideyuki Suzuki (1998-11-16):
# The ordinance No. 51 (1886) established "standard time" in Japan,
# which stands for the time on 135° E.
# In the ordinance No. 167 (1895), "standard time" was renamed to "central
# standard time". And the same ordinance also established "western standard
# time", which stands for the time on 120° E.... But "western standard
# time" was abolished in the ordinance No. 529 (1937). In the ordinance No.
# 167, there is no mention regarding for what place western standard time is
# standard....
#
# I wrote "ordinance" above, but I don't know how to translate.
# In Japanese it's "chokurei", which means ordinance from emperor.
# From Yu-Cheng Chuang (2013-07-12):
# ...the Meiji Emperor announced Ordinance No. 167 of Meiji Year 28 "The clause
# about standard time" ... The adoption began from Jan 1, 1896.
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
#
# ...the Showa Emperor announced Ordinance No. 529 of Showa Year 12 ... which
# means the whole Japan territory, including later occupations, adopt Japan
# Central Time (UT+9). The adoption began on Oct 1, 1937.
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
d1841 1
a1841 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1847 32
a1878 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1949 1
a1949 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1981 1
a1981 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2022 2
a2023 2
# -- page 6; available at http://libinfo.org/newsr/newsr2574.djvu via
# http://libinfo.org/index.php?id=58564 -- on 1991-03-31 at 2:00 during
d2039 1
a2039 1
# https://ru.wikipedia.org/wiki/Декретное_время
d2178 1
a2178 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2275 1
a2275 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2280 1
a2280 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2331 1
a2331 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2395 1
a2395 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2399 1
a2399 1
9:00 ROK K%sT 1954 Mar 21
d2419 1
a2419 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2444 1
a2444 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2449 1
a2449 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2456 1
a2456 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2470 1
a2470 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2478 1
a2478 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2594 1
a2594 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2621 1
a2621 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2639 1
a2639 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2782 1
a2782 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2789 1
a2789 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3057 10
d3069 4
a3072 1
# Palestine summer time will start on Mar 24th 2018 ...
d3074 3
d3078 1
a3078 50
# From Even Scharning (2019-03-23):
# http://pnn.ps/news/401130
# http://palweather.ps/ar/node/50136.html
#
# From Sharif Mustafa (2019-03-26):
# The Palestinian cabinet announced today that the switch to DST will
# be on Fri Mar 29th 2019 by advancing the clock by 60 minutes.
# http://palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e54e9ea1-50ee-4137-84df-0d6c78da259b
#
# From Even Scharning (2019-04-10):
# Our source in Palestine said it happened Friday 29 at 00:00 local time....
# From Sharef Mustafa (2019-10-18):
# Palestine summer time will end on midnight Oct 26th 2019 ...
#
# From Steffen Thorsen (2020-10-20):
# Some sources such as these say, and display on clocks, that DST ended at
# midnight last year...
# https://www.amad.ps/ar/post/320006
#
# From Tim Parenti (2020-10-20):
# The report of the Palestinian Cabinet meeting of 2019-10-14 confirms
# a decision on (translated): "The start of the winter time in Palestine, by
# delaying the clock by sixty minutes, starting from midnight on Friday /
# Saturday corresponding to 26/10/2019."
# http://www.palestinecabinet.gov.ps/portal/meeting/details/43948
# From Sharef Mustafa (2020-10-20):
# As per the palestinian cabinet announcement yesterday , the day light saving
# shall [end] on Oct 24th 2020 at 01:00AM by delaying the clock by 60 minutes.
# http://www.palestinecabinet.gov.ps/portal/Meeting/Details/51584
# From Tim Parenti (2020-10-20):
# Predict future fall transitions at 01:00 on the Saturday preceding October's
# last Sunday (i.e., Sat>=24). This is consistent with our predictions since
# 2016, although the time of the change differed slightly in 2019.
# From Pierre Cashon (2020-10-20):
# The summer time this year started on March 28 at 00:00.
# https://wafa.ps/ar_page.aspx?id=GveQNZa872839351758aGveQNZ
# http://www.palestinecabinet.gov.ps/portal/meeting/details/50284
# The winter time in 2015 started on October 23 at 01:00.
# https://wafa.ps/ar_page.aspx?id=CgpCdYa670694628582aCgpCdY
# http://www.palestinecabinet.gov.ps/portal/meeting/details/27583
#
# From Paul Eggert (2019-04-10):
# For now, guess spring-ahead transitions are at 00:00 on the Saturday
# preceding March's last Sunday (i.e., Sat>=24).
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d3092 1
a3092 1
Rule Palestine 2007 only - Sep 13 2:00 0 -
d3095 1
a3095 1
Rule Palestine 2009 only - Sep 4 1:00 0 -
d3104 5
a3108 10
Rule Palestine 2013 only - Sep 27 0:00 0 -
Rule Palestine 2014 only - Oct 24 0:00 0 -
Rule Palestine 2015 only - Mar 28 0:00 1:00 S
Rule Palestine 2015 only - Oct 23 1:00 0 -
Rule Palestine 2016 2018 - Mar Sat>=24 1:00 1:00 S
Rule Palestine 2016 2018 - Oct Sat>=24 1:00 0 -
Rule Palestine 2019 only - Mar 29 0:00 1:00 S
Rule Palestine 2019 only - Oct Sat>=24 0:00 0 -
Rule Palestine 2020 max - Mar Sat>=24 0:00 1:00 S
Rule Palestine 2020 max - Oct Sat>=24 1:00 0 -
d3110 1
a3110 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3177 1
a3177 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d3184 1
a3184 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3192 1
a3192 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3240 1
a3240 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3249 1
a3249 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3313 1
a3313 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3325 1
a3325 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d3483 1
a3483 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3489 1
a3489 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3497 1
a3497 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3506 1
a3506 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3514 1
a3514 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3521 1
a3521 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3569 1
a3569 1
# To 09:00 on 1945-03-14 at 23:00.
d3587 1
a3587 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
a3598 12
# From Paul Eggert (2019-02-19):
#
# The Ho Chi Minh entry suffices for most purposes as it agrees with all of
# Vietnam since 1975-06-13. Presumably clocks often changed in south Vietnam
# in the early 1970s as locations changed hands during the war; however the
# details are unknown and would likely be too voluminous for this database.
#
# For timestamps in north Vietnam back to 1970 (the tzdb cutoff),
# use Asia/Bangkok; see the VN entries in the file zone1970.tab.
# For timestamps before 1970, see Asia/Hanoi in the file 'backzone'.
@
1.1.1.16.4.8
log
@Pull up the following, requested by kre in ticket #1676:
external/public-domain/tz/dist/Makefile up to 1.1.1.30
external/public-domain/tz/dist/NEWS up to 1.1.1.34
external/public-domain/tz/dist/TZDATA_VERSION up to 1.24
external/public-domain/tz/dist/africa up to 1.1.1.25
external/public-domain/tz/dist/asia up to 1.1.1.28
external/public-domain/tz/dist/australasia up to 1.1.1.21
external/public-domain/tz/dist/backward up to 1.1.1.12
external/public-domain/tz/dist/backzone up to 1.1.1.20
external/public-domain/tz/dist/etcetera up to 1.1.1.5
external/public-domain/tz/dist/europe up to 1.1.1.30
external/public-domain/tz/dist/leap-seconds.list up to 1.1.1.15
external/public-domain/tz/dist/leapseconds up to 1.1.1.18
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.12
external/public-domain/tz/dist/northamerica up to 1.1.1.27
external/public-domain/tz/dist/theory.html up to 1.1.1.12
external/public-domain/tz/dist/version up to 1.1.1.21
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.6
external/public-domain/tz/dist/zone.tab up to 1.1.1.19
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.21
doc/3RDPARTY (apply patch)
Update from tzdata2020d to tzdata2021a.
The significant changes are:
Volgograd switched to Moscow time on 2020-12-27 at 02:00. (2020e)
South Sudan changes from +03 to +02 on 2021-02-01 at 00:00. (2021a)
@
text
@d1726 1
a1726 143
# From P Chan (2020-10-27), with corrections:
#
# 1940-1946 Supplement No. 2 to the Palestine Gazette
# # issue page Order No. dated start end note
# 1 1010 729 67 of 1940 1940-05-22 1940-05-31* 1940-09-30* revoked by #2
# 2 1013 758 73 of 1940 1940-05-31 1940-05-31 1940-09-30
# 3 1055 1574 196 of 1940 1940-11-06 1940-11-16 1940-12-31
# 4 1066 1811 208 of 1940 1940-12-17 1940-12-31 1941-12-31
# 5 1156 1967 116 of 1941 1941-12-16 1941-12-31 1942-12-31* amended by #6
# 6 1228 1608 86 of 1942 1942-10-14 1941-12-31 1942-10-31
# 7 1256 279 21 of 1943 1943-03-18 1943-03-31 1943-10-31
# 8 1323 249 19 of 1944 1944-03-13 1944-03-31 1944-10-31
# 9 1402 328 20 of 1945 1945-04-05 1945-04-15 1945-10-31
#10 1487 596 14 of 1946 1946-04-04 1946-04-15 1946-10-31
#
# 1948 Iton Rishmi (Official Gazette of the Provisional Government)
# # issue page dated start end
#11 2 7 1948-05-20 1948-05-22 1948-10-31*
# ^This moved timezone to +04, replaced by #12 from 1948-08-31 24:00 GMT.
#12 17 (Annex B) 84 1948-08-22 1948-08-31 1948-10-31
#
# 1949-2000 Kovetz HaTakanot (Collection of Regulations)
# # issue page dated start end note
#13 6 133 1949-03-23 1949-04-30 1949-10-31
#14 80 755 1950-03-17 1950-04-15 1950-09-14
#15 164 782 1951-03-22 1951-03-31 1951-09-29* amended by #16
#16 206 1940 1951-09-23 ---------- 1951-10-22* amended by #17
#17 212 78 1951-10-19 ---------- 1951-11-10
#18 254 652 1952-03-03 1952-04-19 1952-09-27* amended by #19
#19 300 11 1952-09-15 ---------- 1952-10-18
#20 348 817 1953-03-03 1953-04-11 1953-09-12
#21 420 385 1954-02-17 1954-06-12 1954-09-11
#22 497 548 1955-01-14 1955-06-11 1955-09-10
#23 591 608 1956-03-12 1956-06-02 1956-09-29
#24 680 957 1957-02-08 1957-04-27 1957-09-21
#25 3192 1418 1974-06-28 1974-07-06 1974-10-12
#26 3322 1389 1975-04-03 1975-04-19 1975-08-30
#27 4146 2089 1980-07-15 1980-08-02 1980-09-13
#28 4604 1081 1984-02-22 1984-05-05* 1984-08-25* revoked by #29
#29 4619 1312 1984-04-06 1984-05-05 1984-08-25
#30 4744 475 1984-12-23 1985-04-13 1985-09-14* amended by #31
#31 4851 1848 1985-08-18 ---------- 1985-08-31
#32 4932 899 1986-04-22 1986-05-17 1986-09-06
#33 5013 580 1987-02-15 1987-04-18* 1987-08-22* revoked by #34
#34 5021 744 1987-03-30 1987-04-14 1987-09-12
#35 5096 659 1988-02-14 1988-04-09 1988-09-03
#36 5167 514 1989-02-03 1989-04-29 1989-09-02
#37 5248 375 1990-01-23 1990-03-24 1990-08-25
#38 5335 612 1991-02-10 1991-03-09* 1991-08-31 amended by #39
# 1992-03-28 1992-09-05
#39 5339 709 1991-03-04 1991-03-23 ----------
#40 5506 503 1993-02-18 1993-04-02 1993-09-05
# 1994-04-01 1994-08-28
# 1995-03-31 1995-09-03
#41 5731 438 1996-01-01 1996-03-14 1996-09-15
# 1997-03-13* 1997-09-18* overridden by 1997 Temp Prov
# 1998-03-19* 1998-09-17* revoked by #42
#42 5853 1243 1997-09-18 1998-03-19 1998-09-05
#43 5937 77 1998-10-18 1999-04-02 1999-09-03
# 2000-04-14* 2000-09-15* revoked by #44
# 2001-04-13* 2001-09-14* revoked by #44
#44 6024 39 2000-03-14 2000-04-14 2000-10-22* overridden by 2000 Temp Prov
# 2001-04-06* 2001-10-10* overridden by 2000 Temp Prov
# 2002-03-29* 2002-10-29* overridden by 2000 Temp Prov
#
# These are laws enacted by the Knesset since the Minister could only alter the
# transition dates at least six months in advanced under the 1992 Law.
# dated start end
# 1997 Temporary Provisions 1997-03-06 1997-03-20 1997-09-13
# 2000 Temporary Provisions 2000-07-28 ---------- 2000-10-06
# 2001-04-09 2001-09-24
# 2002-03-29 2002-10-07
# 2003-03-28 2003-10-03
# 2004-04-07 2004-09-22
# Note:
# Transition times in 1940-1957 (#1-#24) were midnight GMT,
# in 1974-1998 (#25-#42 and the 1997 Temporary Provisions) were midnight,
# in 1999-April 2000 (#43,#44) were 02:00,
# in the 2000 Temporary Provisions were 01:00.
#
# -----------------------------------------------------------------------------
# Links:
# 1 https://findit.library.yale.edu/images_layout/view?parentoid=15537490&increment=687
# 2 https://findit.library.yale.edu/images_layout/view?parentoid=15537490&increment=716
# 3 https://findit.library.yale.edu/images_layout/view?parentoid=15537491&increment=721
# 4 https://findit.library.yale.edu/images_layout/view?parentoid=15537491&increment=958
# 5 https://findit.library.yale.edu/images_layout/view?parentoid=15537502&increment=558
# 6 https://findit.library.yale.edu/images_layout/view?parentoid=15537511&increment=105
# 7 https://findit.library.yale.edu/images_layout/view?parentoid=15537516&increment=278
# 8 https://findit.library.yale.edu/images_layout/view?parentoid=15537522&increment=248
# 9 https://findit.library.yale.edu/images_layout/view?parentoid=15537530&increment=329
#10 https://findit.library.yale.edu/images_layout/view?parentoid=15537537&increment=601
#11 https://www.nevo.co.il/law_word/law12/er-002.pdf#page=3
#12 https://www.nevo.co.il/law_word/law12/er-017-t2.pdf#page=4
#13 https://www.nevo.co.il/law_word/law06/tak-0006.pdf#page=3
#14 https://www.nevo.co.il/law_word/law06/tak-0080.pdf#page=7
#15 https://www.nevo.co.il/law_word/law06/tak-0164.pdf#page=10
#16 https://www.nevo.co.il/law_word/law06/tak-0206.pdf#page=4
#17 https://www.nevo.co.il/law_word/law06/tak-0212.pdf#page=2
#18 https://www.nevo.co.il/law_word/law06/tak-0254.pdf#page=4
#19 https://www.nevo.co.il/law_word/law06/tak-0300.pdf#page=5
#20 https://www.nevo.co.il/law_word/law06/tak-0348.pdf#page=3
#21 https://www.nevo.co.il/law_word/law06/tak-0420.pdf#page=5
#22 https://www.nevo.co.il/law_word/law06/tak-0497.pdf#page=10
#23 https://www.nevo.co.il/law_word/law06/tak-0591.pdf#page=6
#24 https://www.nevo.co.il/law_word/law06/tak-0680.pdf#page=3
#25 https://www.nevo.co.il/law_word/law06/tak-3192.pdf#page=2
#26 https://www.nevo.co.il/law_word/law06/tak-3322.pdf#page=5
#27 https://www.nevo.co.il/law_word/law06/tak-4146.pdf#page=2
#28 https://www.nevo.co.il/law_word/law06/tak-4604.pdf#page=7
#29 https://www.nevo.co.il/law_word/law06/tak-4619.pdf#page=2
#30 https://www.nevo.co.il/law_word/law06/tak-4744.pdf#page=11
#31 https://www.nevo.co.il/law_word/law06/tak-4851.pdf#page=2
#32 https://www.nevo.co.il/law_word/law06/tak-4932.pdf#page=19
#33 https://www.nevo.co.il/law_word/law06/tak-5013.pdf#page=8
#34 https://www.nevo.co.il/law_word/law06/tak-5021.pdf#page=8
#35 https://www.nevo.co.il/law_word/law06/tak-5096.pdf#page=3
#36 https://www.nevo.co.il/law_word/law06/tak-5167.pdf#page=2
#37 https://www.nevo.co.il/law_word/law06/tak-5248.pdf#page=7
#38 https://www.nevo.co.il/law_word/law06/tak-5335.pdf#page=6
#39 https://www.nevo.co.il/law_word/law06/tak-5339.pdf#page=7
#40 https://www.nevo.co.il/law_word/law06/tak-5506.pdf#page=19
#41 https://www.nevo.co.il/law_word/law06/tak-5731.pdf#page=2
#42 https://www.nevo.co.il/law_word/law06/tak-5853.pdf#page=3
#43 https://www.nevo.co.il/law_word/law06/tak-5937.pdf#page=9
#44 https://www.nevo.co.il/law_word/law06/tak-6024.pdf#page=4
#
# Time Determination (Temporary Provisions) Law, 1997
# https://www.nevo.co.il/law_html/law19/p201_003.htm
#
# Time Determination (Temporary Provisions) Law, 2000
# https://www.nevo.co.il/law_html/law19/p201_004.htm
#
# Time Determination Law, 1992 and amendments
# https://www.nevo.co.il/law_html/law01/p201_002.htm
# https://main.knesset.gov.il/Activity/Legislation/Laws/Pages/LawPrimary.aspx?lawitemid=2001174
# From Paul Eggert (2020-10-27):
# Several of the midnight transitions mentioned above are ambiguous;
# are they 00:00, 00:00s, 24:00, or 24:00s? When resolving these ambiguities,
# try to minimize changes from previous tzdb versions, for lack of better info.
# Commentary from previous versions is included below, to help explain this.
d1728 32
a1759 30
Rule Zion 1940 only - May 31 24:00u 1:00 D
Rule Zion 1940 only - Sep 30 24:00u 0 S
Rule Zion 1940 only - Nov 16 24:00u 1:00 D
Rule Zion 1942 1946 - Oct 31 24:00u 0 S
Rule Zion 1943 1944 - Mar 31 24:00u 1:00 D
Rule Zion 1945 1946 - Apr 15 24:00u 1:00 D
Rule Zion 1948 only - May 22 24:00u 2:00 DD
Rule Zion 1948 only - Aug 31 24:00u 1:00 D
Rule Zion 1948 1949 - Oct 31 24:00u 0 S
Rule Zion 1949 only - Apr 30 24:00u 1:00 D
Rule Zion 1950 only - Apr 15 24:00u 1:00 D
Rule Zion 1950 only - Sep 14 24:00u 0 S
Rule Zion 1951 only - Mar 31 24:00u 1:00 D
Rule Zion 1951 only - Nov 10 24:00u 0 S
Rule Zion 1952 only - Apr 19 24:00u 1:00 D
Rule Zion 1952 only - Oct 18 24:00u 0 S
Rule Zion 1953 only - Apr 11 24:00u 1:00 D
Rule Zion 1953 only - Sep 12 24:00u 0 S
Rule Zion 1954 only - Jun 12 24:00u 1:00 D
Rule Zion 1954 only - Sep 11 24:00u 0 S
Rule Zion 1955 only - Jun 11 24:00u 1:00 D
Rule Zion 1955 only - Sep 10 24:00u 0 S
Rule Zion 1956 only - Jun 2 24:00u 1:00 D
Rule Zion 1956 only - Sep 29 24:00u 0 S
Rule Zion 1957 only - Apr 27 24:00u 1:00 D
Rule Zion 1957 only - Sep 21 24:00u 0 S
Rule Zion 1974 only - Jul 6 24:00 1:00 D
Rule Zion 1974 only - Oct 12 24:00 0 S
Rule Zion 1975 only - Apr 19 24:00 1:00 D
Rule Zion 1975 only - Aug 30 24:00 0 S
d1772 12
a1783 11
Rule Zion 1980 only - Aug 2 24:00s 1:00 D
Rule Zion 1980 only - Sep 13 24:00s 0 S
Rule Zion 1984 only - May 5 24:00s 1:00 D
Rule Zion 1984 only - Aug 25 24:00s 0 S
Rule Zion 1985 only - Apr 13 24:00 1:00 D
Rule Zion 1985 only - Aug 31 24:00 0 S
Rule Zion 1986 only - May 17 24:00 1:00 D
Rule Zion 1986 only - Sep 6 24:00 0 S
Rule Zion 1987 only - Apr 14 24:00 1:00 D
Rule Zion 1987 only - Sep 12 24:00 0 S
d1789 2
a1790 2
Rule Zion 1988 only - Apr 9 24:00 1:00 D
Rule Zion 1988 only - Sep 3 24:00 0 S
d1820 8
a1827 8
Rule Zion 1989 only - Apr 29 24:00 1:00 D
Rule Zion 1989 only - Sep 2 24:00 0 S
Rule Zion 1990 only - Mar 24 24:00 1:00 D
Rule Zion 1990 only - Aug 25 24:00 0 S
Rule Zion 1991 only - Mar 23 24:00 1:00 D
Rule Zion 1991 only - Aug 31 24:00 0 S
Rule Zion 1992 only - Mar 28 24:00 1:00 D
Rule Zion 1992 only - Sep 5 24:00 0 S
d1856 4
a1859 4
Rule Zion 1996 only - Mar 14 24:00 1:00 D
Rule Zion 1996 only - Sep 15 24:00 0 S
Rule Zion 1997 only - Mar 20 24:00 1:00 D
Rule Zion 1997 only - Sep 13 24:00 0 S
d1911 8
a1918 9
# From Ephraim Silverberg (2020-10-26):
# The current time law (2013) from the State of Israel can be viewed
# (in Hebrew) at:
# ftp://ftp.cs.huji.ac.il/pub/tz/israel/announcements/2013+law.pdf
# It translates to:
# Every year, in the period from the Friday before the last Sunday in
# the month of March at 02:00 a.m. until the last Sunday of the month
# of October at 02:00 a.m., Israel Time will be advanced an additional
# hour such that it will be UTC+3.
@
1.1.1.16.4.9
log
@Pull up the following revisions (catch up to -current), requested by kre
in ticket #1777:
external/public-domain/tz/dist/SECURITY up to 1.1.1.1
external/public-domain/tz/dist/CONTRIBUTING up to 1.1.1.7
external/public-domain/tz/dist/Makefile up to 1.1.1.33
external/public-domain/tz/dist/NEWS up to 1.1.1.38
external/public-domain/tz/dist/README up to 1.1.1.10
external/public-domain/tz/dist/TZDATA_VERSION up to 1.30
external/public-domain/tz/dist/africa up to 1.1.1.28
external/public-domain/tz/dist/antarctica up to 1.1.1.15
external/public-domain/tz/dist/asia up to 1.5
external/public-domain/tz/dist/australasia up to 1.5
external/public-domain/tz/dist/backward up to 1.5
external/public-domain/tz/dist/backzone up to 1.1.1.23
external/public-domain/tz/dist/calendars up to 1.1.1.2
external/public-domain/tz/dist/checktab.awk up to 1.1.1.11
external/public-domain/tz/dist/etcetera up to 1.1.1.6
external/public-domain/tz/dist/europe up to 1.1.1.34
external/public-domain/tz/dist/leap-seconds.list up to 1.4
external/public-domain/tz/dist/leapseconds up to 1.4
external/public-domain/tz/dist/northamerica up to 1.1.1.30
external/public-domain/tz/dist/southamerica up to 1.1.1.20
external/public-domain/tz/dist/theory.html up to 1.1.1.15
external/public-domain/tz/dist/version up to 1.5
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.9
external/public-domain/tz/dist/zishrink.awk up to 1.1.1.8
external/public-domain/tz/dist/zone.tab up to 1.1.1.22
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.23
distrib/sets/lists/base/mi (apply patch)
doc/3RDPARTY (apply patch)
Updata tzdata to 2022e.
@
text
@d37 3
d156 1
a156 5
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Bahrain 3:22:20 - LMT 1941 Jul 20 # Manamah
3:30 - +0330 1944 Jan 1
4:00 - +04 1972 Jun
3:00 - +03
d284 1
a284 7
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jul 1
7:06:30 - PLMT 1911 May 1
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 2
7:00 - +07
d350 6
a355 3
# a. For the 1940 May 31 spring forward, the essay [says] ... "Hong
# Kong government implemented the spring forward in the same time on
# the same date as Shanghai".
d551 1
a551 1
# Milne gives 8:05:43.2 for Xujiahui Observatory time....
a669 1
#STDOFF 8:05:43.2
d681 1
a681 1
# Milne gives 7:36:41.7.
d865 1
a865 2
#STDOFF 7:36:41.7
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 29 17:00u
d1340 1
a1340 1
# civil time was 7:07:12.5.
a1375 1
#STDOFF 7:07:12.5
d1379 1
a1379 1
7:07:12 - BMT 1923 Dec 31 16:40u # Batavia
a1410 105
# From Roozbeh Pournader (2022-05-30):
# Here's an order from the Cabinet to the rest of the government to switch to
# Tehran time, which is mentioned to be already at +03:30:
# https://qavanin.ir/Law/TreeText/180138
# Just in case that goes away, I also saved a copy at archive.org:
# https://web.archive.org/web/20220530111940/https://qavanin.ir/Law/TreeText/180138
# Here's my translation:
#
# "Circular on Matching the Hours of Governmental and Official Circles
# in Provinces
# Approved 1314/03/22 [=1935-06-13]
# According to the ruling of the Honorable Cabinet, it is ordered that from
# now on in all internal provinces of the country, governmental and official
# circles set their time to match Tehran time (three hours and half before
# Greenwich)....
#
# I still haven't found out when Tehran itself switched to +03:30....
#
# From Paul Eggert (2022-06-05):
# Although the above says Tehran was at +03:30 before 1935-06-13, we don't
# know when it switched to +03:30. For now, use 1935-06-13 as the switch date.
# Although most likely wrong, we have no better info.
# From Roozbeh Pournader (2022-06-01):
# This is from Kayhan newspaper, one of the major Iranian newspapers, from
# March 20, 1978, page 2:
#
# "Pull the clocks 60 minutes forward
# As we informed before, from the fourth day of the month Farvardin of the
# new year [=1978-03-24], clocks will be pulled forward, and people's daily
# work and life program will start one hour earlier than the current program.
# On the 1st day of the month Farvardin of this year [=1977-03-21], they had
# pulled the clocks forward by one hour, but in the month of Mehr
# [=1977-09-23], the clocks were pulled back by 30 minutes.
# In this way, from the 4th day of the month Farvardin, clocks will be ahead
# of the previous years by one hour and a half.
# According to the new program, during the night of 4th of Farvardin, when
# the midnight, meaning 24 o'clock is announced, the hands of the clock must
# be pulled forward by one hour and thus consider midnight 1 o'clock in the
# forenoon."
#
# This implies that in September 1977, when the daylight savings time was
# done with, Iran didn't go back to +03:30, but immediately to +04:00.
#
#
# This is from the major Iranian newspaper Ettela'at, dated [1978-08-03]...,
# page 32. It looks like they decided to get the clocks back to +4:00
# just in time for Ramadan that year:
#
# "Tomorrow Night, Pull the Clocks Back by One Hour
# At 1 o'clock in the forenoon of Saturday 14 Mordad [=1978-08-05], the
# clocks will be pulled one hour back and instead of 1 o'clock in the
# forenoon, Radio Iran will announce 24 o'clock.
# This decision was made in the Cabinet of Ministers meeting of 25 Tir
# [=1978-07-16], [...]
# At the beginning of the year 2537 [=March 1978: Iran was using a different
# year number for a few years then, based on the Coronation of Cyrus the
# Great], the country's official time was pulled forward by one hour and now
# the official time is one hour and a half ahead compared to last year,
# because in Farvardin of last year [=March 1977], the official time was
# pulled forward one hour and this continued until the second half of last
# year [=September 1977] until in the second half of last year the official
# time was pulled back half an hour and that half hour still remains."
#
# This matches the time of the true noon published in the newspapers, as they
# clearly go from +05:00 to +04:00 after that date (which happened during a
# long weekend in Iran).
# From Roozbeh Pournader (2022-05-31):
# [Movahedi S. Cultural preconceptions of time: Can we use operational time
# to meddle in God's Time? Comp Stud Soc Hist. 1985;27(3):385-400]
# https://www.jstor.org/stable/178704
# Here's the quotes from the paper:
# 1. '"Iran's official time keeper moved the clock one hour forward as from
# March 22, 1977 (Farvardin 2, 2536) to make maximum use of daylight and save
# in energy consumption. Thus Iran joined such other countries as Britain in
# observing what is known as 'daylight saving.' The proposal was originally
# put forward by the Ministry of Energy, in no way having any influence on
# observing religious ceremonies. Moving time one hour forward in summer
# means that at 11:00 o'clock on March 21, the official time was set as
# midnight March 22. Then September 24 will actually begin one hour later
# than the end of September 23 [...]." Iran's time base thus continued to be
# Greenwich Mean Time plus three and one-half hours (plus four and one-half
# hours in summer).'
#
# The article sources this from Iran Almanac and Book of Facts, 1977, Tehran:
# Echo of Iran, which is on Google Books at
# https://www.google.com/books/edition/Iran_Almanac_and_Book_of_Facts/9ybVAAAAMAAJ.
# (I confirmed it by searching for snippets.)
#
# 2. "After the fall of the shah, the revolutionary government returned to
# daylight-saving time (DST) on 26 May 1979."
#
# This seems to have been announced just one day in advance, on 25 May 1979.
#
# The change in 1977 clearly seems to be the first daylight savings effort in
# Iran. But the article doesn't mention what happened in 1978 (which was
# still during the shah's government), or how things continued in 1979
# onwards (which was during the Islamic Republic).
# From Francis Santoni (2022-06-01):
# for Iran and 1977 the effective change is only 20 october
# (UIT No. 143 17.XI.1977) and not 23 september (UIT No. 141 13.IX.1977).
# UIT is the Operational Bulletin of International Telecommunication Union.
d1445 59
a1503 6
# From Paul Eggert (2022-06-30):
# Go with Pournader for 1935 through spring 1979, and for timestamps
# after August 1991; go with with Shanks & Pottenger for other timestamps.
# Go with Santoni's citation of the UIT for fall 1977, as 20 October 1977
# is 28 Mehr 1356, consistent with the "Mehr" in Pournader's source.
# Assume that the UIT's "1930" is UTC, i.e., 24:00 local time.
a1536 6
# From Ali Mirjamali (2022-05-10):
# Official IR News Agency announcement: irna.ir/xjJ3TT
# ...
# Highlights: DST will be cancelled for the next Iranian year 1402
# (i.e 2023-March-21) and forthcoming years.
#
d1538 2
a1539 8
# Work around a bug in zic 2022a and earlier.
Rule Iran 1910 only - Jan 1 00:00 0 -
#
Rule Iran 1977 only - Mar 21 23:00 1:00 -
Rule Iran 1977 only - Oct 20 24:00 0 -
Rule Iran 1978 only - Mar 24 24:00 1:00 -
Rule Iran 1978 only - Aug 5 01:00 0 -
Rule Iran 1979 only - May 26 24:00 1:00 -
a1540 1
Rule Iran 1980 only - Mar 20 24:00 1:00 -
d1571 74
a1644 2
Rule Iran 2021 2022 - Mar 21 24:00 1:00 -
Rule Iran 2021 2022 - Sep 21 24:00 0 -
d1648 2
a1649 2
3:25:44 - TMT 1935 Jun 13 # Tehran Mean Time
3:30 Iran +0330/+0430 1977 Oct 20 24:00
a2236 8
# From Steffen Thorsen (2021-09-24):
# The Jordanian Government announced yesterday that they will start DST
# in February instead of March:
# https://petra.gov.jo/Include/InnerPage.jsp?ID=37683&lang=en&name=en_news (English)
# https://petra.gov.jo/Include/InnerPage.jsp?ID=189969&lang=ar&name=news (Arabic)
# From the Arabic version, it seems to say it would be at midnight
# (assume 24:00) on the last Thursday in February, starting from 2022.
d2267 1
a2267 1
Rule Jordan 2014 2021 - Mar lastThu 24:00 1:00 S
a2268 1
Rule Jordan 2022 max - Feb lastThu 24:00 1:00 S
d2462 3
a2464 3
# (Asia/Qyzylorda) is changing its time zone from UTC+6 to UTC+5
# effective December 21st, 2018....
# http://adilet.zan.kz/rus/docs/P1800000817 (russian language).
d2700 1
a2700 3
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Kuwait 3:11:56 - LMT 1950
3:00 - +03
d2703 1
a2703 9
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Vientiane 6:50:24 - LMT 1906 Jul 1
7:06:30 - PLMT 1911 May 1
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 2
7:00 - +07 1947 Apr 1
8:00 - +08 1955 Apr 15
7:00 - +07
d2741 3
a2743 1
# Peninsular Malaysia
a2753 2
#
d2933 1
a2933 3
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Muscat 3:54:24 - LMT 1920
4:00 - +04
d3382 5
a3398 15
# From P Chan (2021-10-18):
# http://wafa.ps/Pages/Details/34701
# Palestine winter time will start from midnight 2021-10-29 (Thursday-Friday).
#
# From Heba Hemad, Palestine Ministry of Telecom & IT (2021-10-20):
# ... winter time will begin in Palestine from Friday 10-29, 01:00 AM
# by 60 minutes backwards.
#
# From Tim Parenti (2021-10-25), per Paul Eggert (2021-10-24):
# Guess future fall transitions at 01:00 on the Friday preceding October's
# last Sunday (i.e., Fri>=23), as this is more consistent with recent practice.
# From Heba Hamad (2022-03-10):
# summer time will begin in Palestine from Sunday 03-27-2022, 00:00 AM.
d3433 2
a3434 4
Rule Palestine 2020 2021 - Mar Sat>=24 0:00 1:00 S
Rule Palestine 2020 only - Oct 24 1:00 0 -
Rule Palestine 2021 max - Oct Fri>=23 1:00 0 -
Rule Palestine 2022 max - Mar Sun>=25 0:00 1:00 S
a3502 6
# From P Chan (2021-05-10):
# Here's a fairly comprehensive article in Japanese:
# https://wiki.suikawiki.org/n/Philippine%20Time
# From Paul Eggert (2021-05-10):
# The info in the Japanese table has not been absorbed (yet) below.
d3522 1
d3569 2
d3574 1
a3574 1
# https://web.archive.org/web/20190822231045/http://www.math.nus.edu.sg/~mathelmr/teaching/timezone.html
d3819 1
a3819 1
5:00 1:00 +06 1991 Sep 9 2:00s
d3827 2
d3843 1
d3855 1
a3855 2
# Milne says Tashkent was 4:37:10.8.
#STDOFF 4:37:10.8
d3874 1
a3874 1
# From Paul Eggert (2022-07-27) after a 2014 heads-up from Trần Ngọc Quân:
d3886 2
a3887 2
# the Paris Meridian; for now guess the former and round the exact
# 07:06:30.1333... to 07:06:30.13 as the legal spec used 66 2/3 ms precision.
d3914 1
a3914 2
#STDOFF 7:06:30.13
Zone Asia/Ho_Chi_Minh 7:06:30 - LMT 1906 Jul 1
d3938 1
a3938 4
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Aden 2:59:54 - LMT 1950
3:00 - +03
@
1.1.1.16.4.10
log
@Pull up the following, requested by kry in ticket #1928:
external/public-domain/tz/dist/checknow.awk up to 1.1.1.1
external/public-domain/tz/dist/zonenow.tab up to 1.1.1.1
external/public-domain/tz/dist/CONTRIBUTING up to 1.1.1.8
external/public-domain/tz/dist/Makefile up to 1.1.1.37
external/public-domain/tz/dist/NEWS up to 1.1.1.44
external/public-domain/tz/dist/README up to 1.1.1.11
external/public-domain/tz/dist/TZDATA_VERSION up to 1.36
external/public-domain/tz/dist/africa up to 1.1.1.32
external/public-domain/tz/dist/antarctica up to 1.1.1.18
external/public-domain/tz/dist/asia up to 1.11
external/public-domain/tz/dist/australasia up to 1.8
external/public-domain/tz/dist/backward up to 1.11
external/public-domain/tz/dist/backzone up to 1.1.1.27
external/public-domain/tz/dist/checklinks.awk up to 1.1.1.4
external/public-domain/tz/dist/checktab.awk up to 1.1.1.13
external/public-domain/tz/dist/etcetera up to 1.1.1.7
external/public-domain/tz/dist/europe up to 1.1.1.38
external/public-domain/tz/dist/iso3166.tab up to 1.1.1.9
external/public-domain/tz/dist/leap-seconds.list up to 1.6
external/public-domain/tz/dist/leapseconds up to 1.6
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.13
external/public-domain/tz/dist/northamerica up to 1.1.1.34
external/public-domain/tz/dist/southamerica up to 1.1.1.24
external/public-domain/tz/dist/theory.html up to 1.1.1.18
external/public-domain/tz/dist/version up to 1.11
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.10
external/public-domain/tz/dist/zone.tab up to 1.1.1.26
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.27
distrib/sets/lists/base/mi (apply patch)
doc/3RDPARTY (apply patch)
Update tzdata to tzdata2023dgtz.
@
text
@d267 1
a267 1
# Myanmar (Burma)
d293 1
d683 1
d1186 4
d1519 2
a1520 2
# for Iran and 1977 the effective change is only 20 October
# (UIT No. 143 17.XI.1977) and not 23 September (UIT No. 141 13.IX.1977).
a2244 11
# From Issam Al-Zuwairi (2022-10-05):
# The Council of Ministers in Jordan decided Wednesday 5th October 2022,
# that daylight saving time (DST) will be throughout the year....
#
# From Brian Inglis (2022-10-06):
# https://petra.gov.jo/Include/InnerPage.jsp?ID=45567&lang=en&name=en_news
#
# From Paul Eggert (2022-10-05):
# Like Syria, model this as a transition from EEST +03 (DST) to plain +03
# (non-DST) at the point where DST would otherwise have ended.
d2276 2
a2277 2
Rule Jordan 2014 2022 - Oct lastFri 0:00s 0 -
Rule Jordan 2022 only - Feb lastThu 24:00 1:00 S
d2280 1
a2280 2
2:00 Jordan EE%sT 2022 Oct 28 0:00s
3:00 - +03
d2706 2
d2724 1
a2725 34
#
# From Saadallah Itani (2023-03-23):
# Lebanon ... announced today delay of Spring forward from March 25 to April 20.
#
# From Paul Eggert (2023-03-27):
# This announcement was by the Lebanese caretaker prime minister Najib Mikati.
# https://www.mtv.com.lb/en/News/Local/1352516/lebanon-postpones-daylight-saving-time-adoption
# A video was later leaked to the media of parliament speaker Nabih Berri
# asking Mikati to postpone DST to aid observance of Ramadan, Mikati objecting
# that this would cause problems such as scheduling airline flights, to which
# Berri interjected, "What flights?"
#
# The change was controversial and led to a partly-sectarian divide.
# Many Lebanese institutions, including the education ministry, the Maronite
# church, and two news channels LCBI and MTV, ignored the announcement and
# went ahead with the long-scheduled spring-forward on March 25/26, some
# arguing that the prime minister had not followed the law because the change
# had not been approved by the cabinet. Google went with the announcement;
# Apple ignored it. At least one bank followed the announcement for its doors,
# but ignored the announcement in internal computer systems.
# Beirut international airport listed two times for each departure.
# Dan Azzi wrote "My view is that this whole thing is a Dumb and Dumber movie."
# Eventually the prime minister backed down, said the cabinet had decided to
# stick with its 1998 decision, and that DST would begin midnight March 29/30.
# https://www.nna-leb.gov.lb/en/miscellaneous/604093/lebanon-has-two-times-of-day-amid-daylight-savings
# https://www.cnbc.com/2023/03/27/lebanon-in-two-different-time-zones-as-government-disagrees-on-daylight-savings.html
#
# Although we could model the chaos with two Zones, that would likely cause
# more trouble than it would cure. Since so many manual clocks and
# computer-based timestamps ignored the announcement, stick with official
# cabinet resolutions in the data while recording the prime minister's
# announcement as a comment. This is how we treated a similar situation in
# Rio de Janeiro in spring 1993.
#
a2750 4
# This one-time rule, announced by the prime minister first for April 21
# then for March 30, is commented out for reasons described above.
#Rule Lebanon 2023 only - Mar 30 0:00 1:00 S
d2755 1
a2755 1
# Malaysia (eastern)
d2769 1
a2769 1
7:30 - +0730 1981 Dec 31 16:00u
d3003 1
a3003 1
# http://www.dailytimes.com.pk/default.asp?page=2008\05\15\story_15-5-2008_pg1_4
d3326 1
a3326 1
# http://safa.ps/details/news/74352/بدء-التوقيت-الصيفي-بالضفة-وغزة-ليلة-الجمعة.html
d3336 1
a3336 1
# http://safa.ps/details/news/99844/رام-الله-بدء-التوقيت-الصيفي-29-الجاري.html
d3410 4
a3429 47
# From Heba Hamad (2022-08-30):
# winter time will begin in Palestine from Saturday 10-29, 02:00 AM by
# 60 minutes backwards. Also the state of Palestine adopted the summer
# and winter time for the years: 2023,2024,2025,2026 ...
# https://mm.icann.org/pipermail/tz/attachments/20220830/9f024566/Time-0001.pdf
# (2022-08-31): ... the Saturday before the last Sunday in March and October
# at 2:00 AM ,for the years from 2023 to 2026.
# (2022-09-05): https://mtit.pna.ps/Site/New/1453
# From Heba Hamad (2023-03-22):
# ... summer time will begin in Palestine from Saturday 04-29-2023,
# 02:00 AM by 60 minutes forward.
# From Heba Hemad (2023-10-09):
# ... winter time will begin in Palestine from Saturday 10-28-2023,
# 02:00 AM by 60 minutes back.
#
# From Paul Eggert (2023-03-22):
# For now, guess that spring and fall transitions will normally
# continue to use 2022's rules, that during DST Palestine will switch
# to standard time at 02:00 the last Saturday before Ramadan and back
# to DST at 02:00 the first Saturday after Ramadan, and that
# if the normal spring-forward or fall-back transition occurs during
# Ramadan the former is delayed and the latter advanced.
# To implement this, I predicted Ramadan-oriented transition dates for
# 2023 through 2086 by running the following program under GNU Emacs 28.2,
# with the results integrated by hand into the table below.
# Predictions after 2086 are approximated without Ramadan.
#
# (let ((islamic-year 1444))
# (require 'cal-islam)
# (while (< islamic-year 1510)
# (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year)))
# (b (+ 1 (calendar-islamic-to-absolute (list 10 1 islamic-year))))
# (saturday 6))
# (while (/= saturday (mod (setq a (1- a)) 7)))
# (while (/= saturday (mod b 7))
# (setq b (1+ b)))
# (setq a (calendar-gregorian-from-absolute a))
# (setq b (calendar-gregorian-from-absolute b))
# (insert
# (format
# (concat "Rule Palestine\t%d\tonly\t-\t%s\t%2d\t2:00\t0\t-\n"
# "Rule Palestine\t%d\tonly\t-\t%s\t%2d\t2:00\t1:00\tS\n")
# (car (cdr (cdr a))) (calendar-month-name (car a) t) (car (cdr a))
# (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b)))))
# (setq islamic-year (+ 1 islamic-year))))
d3460 2
a3461 2
Rule Palestine 2016 2018 - Mar Sat<=30 1:00 1:00 S
Rule Palestine 2016 2018 - Oct Sat<=30 1:00 0 -
d3463 2
a3464 2
Rule Palestine 2019 only - Oct Sat<=30 0:00 0 -
Rule Palestine 2020 2021 - Mar Sat<=30 0:00 1:00 S
d3466 2
a3467 82
Rule Palestine 2021 only - Oct 29 1:00 0 -
Rule Palestine 2022 only - Mar 27 0:00 1:00 S
Rule Palestine 2022 2035 - Oct Sat<=30 2:00 0 -
Rule Palestine 2023 only - Apr 29 2:00 1:00 S
Rule Palestine 2024 only - Apr 13 2:00 1:00 S
Rule Palestine 2025 only - Apr 5 2:00 1:00 S
Rule Palestine 2026 2054 - Mar Sat<=30 2:00 1:00 S
Rule Palestine 2036 only - Oct 18 2:00 0 -
Rule Palestine 2037 only - Oct 10 2:00 0 -
Rule Palestine 2038 only - Sep 25 2:00 0 -
Rule Palestine 2039 only - Sep 17 2:00 0 -
Rule Palestine 2039 only - Oct 22 2:00 1:00 S
Rule Palestine 2039 2067 - Oct Sat<=30 2:00 0 -
Rule Palestine 2040 only - Sep 1 2:00 0 -
Rule Palestine 2040 only - Oct 13 2:00 1:00 S
Rule Palestine 2041 only - Aug 24 2:00 0 -
Rule Palestine 2041 only - Sep 28 2:00 1:00 S
Rule Palestine 2042 only - Aug 16 2:00 0 -
Rule Palestine 2042 only - Sep 20 2:00 1:00 S
Rule Palestine 2043 only - Aug 1 2:00 0 -
Rule Palestine 2043 only - Sep 12 2:00 1:00 S
Rule Palestine 2044 only - Jul 23 2:00 0 -
Rule Palestine 2044 only - Aug 27 2:00 1:00 S
Rule Palestine 2045 only - Jul 15 2:00 0 -
Rule Palestine 2045 only - Aug 19 2:00 1:00 S
Rule Palestine 2046 only - Jun 30 2:00 0 -
Rule Palestine 2046 only - Aug 11 2:00 1:00 S
Rule Palestine 2047 only - Jun 22 2:00 0 -
Rule Palestine 2047 only - Jul 27 2:00 1:00 S
Rule Palestine 2048 only - Jun 6 2:00 0 -
Rule Palestine 2048 only - Jul 18 2:00 1:00 S
Rule Palestine 2049 only - May 29 2:00 0 -
Rule Palestine 2049 only - Jul 3 2:00 1:00 S
Rule Palestine 2050 only - May 21 2:00 0 -
Rule Palestine 2050 only - Jun 25 2:00 1:00 S
Rule Palestine 2051 only - May 6 2:00 0 -
Rule Palestine 2051 only - Jun 17 2:00 1:00 S
Rule Palestine 2052 only - Apr 27 2:00 0 -
Rule Palestine 2052 only - Jun 1 2:00 1:00 S
Rule Palestine 2053 only - Apr 12 2:00 0 -
Rule Palestine 2053 only - May 24 2:00 1:00 S
Rule Palestine 2054 only - Apr 4 2:00 0 -
Rule Palestine 2054 only - May 16 2:00 1:00 S
Rule Palestine 2055 only - May 1 2:00 1:00 S
Rule Palestine 2056 only - Apr 22 2:00 1:00 S
Rule Palestine 2057 only - Apr 7 2:00 1:00 S
Rule Palestine 2058 max - Mar Sat<=30 2:00 1:00 S
Rule Palestine 2068 only - Oct 20 2:00 0 -
Rule Palestine 2069 only - Oct 12 2:00 0 -
Rule Palestine 2070 only - Oct 4 2:00 0 -
Rule Palestine 2071 only - Sep 19 2:00 0 -
Rule Palestine 2072 only - Sep 10 2:00 0 -
Rule Palestine 2072 only - Oct 15 2:00 1:00 S
Rule Palestine 2072 max - Oct Sat<=30 2:00 0 -
Rule Palestine 2073 only - Sep 2 2:00 0 -
Rule Palestine 2073 only - Oct 7 2:00 1:00 S
Rule Palestine 2074 only - Aug 18 2:00 0 -
Rule Palestine 2074 only - Sep 29 2:00 1:00 S
Rule Palestine 2075 only - Aug 10 2:00 0 -
Rule Palestine 2075 only - Sep 14 2:00 1:00 S
Rule Palestine 2076 only - Jul 25 2:00 0 -
Rule Palestine 2076 only - Sep 5 2:00 1:00 S
Rule Palestine 2077 only - Jul 17 2:00 0 -
Rule Palestine 2077 only - Aug 28 2:00 1:00 S
Rule Palestine 2078 only - Jul 9 2:00 0 -
Rule Palestine 2078 only - Aug 13 2:00 1:00 S
Rule Palestine 2079 only - Jun 24 2:00 0 -
Rule Palestine 2079 only - Aug 5 2:00 1:00 S
Rule Palestine 2080 only - Jun 15 2:00 0 -
Rule Palestine 2080 only - Jul 20 2:00 1:00 S
Rule Palestine 2081 only - Jun 7 2:00 0 -
Rule Palestine 2081 only - Jul 12 2:00 1:00 S
Rule Palestine 2082 only - May 23 2:00 0 -
Rule Palestine 2082 only - Jul 4 2:00 1:00 S
Rule Palestine 2083 only - May 15 2:00 0 -
Rule Palestine 2083 only - Jun 19 2:00 1:00 S
Rule Palestine 2084 only - Apr 29 2:00 0 -
Rule Palestine 2084 only - Jun 10 2:00 1:00 S
Rule Palestine 2085 only - Apr 21 2:00 0 -
Rule Palestine 2085 only - Jun 2 2:00 1:00 S
Rule Palestine 2086 only - Apr 13 2:00 0 -
Rule Palestine 2086 only - May 18 2:00 1:00 S
a3563 2
# Japan's year-round bases in Antarctica match this since 1970.
#
d3619 1
a3619 1
7:30 - +0730 1981 Dec 31 16:00u
d3666 1
a3666 1
# "SLST" seems to be reasonably recent and rarely used outside time
d3835 2
a3836 9
# From Steffen Thorsen (2022-10-05):
# Syria is adopting year-round DST, starting this autumn....
# From https://www.enabbaladi.net/archives/607812
# "This [the decision] came after the weekly government meeting today,
# Tuesday 4 October ..."
#
# From Paul Eggert (2022-10-05):
# Like Jordan, model this as a transition from EEST +03 (DST) to plain +03
# (non-DST) at the point where DST would otherwise have ended.
d3842 2
a3843 2
Rule Syria 2012 2022 - Mar lastFri 0:00 1:00 S
Rule Syria 2009 2022 - Oct lastFri 0:00 0 -
d3847 1
a3847 2
2:00 Syria EE%sT 2022 Oct 28 0:00
3:00 - +03
a3873 2
#
# The Crozet Is also observe Réunion time; see the 'antarctica' file.
d3896 1
a3896 1
# Vietnam (southern)
d3971 1
@
1.1.1.16.4.11
log
@Pull up the following, requested by kre in ticket #1935:
external/public-domain/tz/dist/Makefile up to 1.1.1.38
external/public-domain/tz/dist/NEWS up to 1.1.1.45
external/public-domain/tz/dist/TZDATA_VERSION up to 1.37
external/public-domain/tz/dist/africa up to 1.1.1.33
external/public-domain/tz/dist/asia up to 1.12
external/public-domain/tz/dist/australasia up to 1.9
external/public-domain/tz/dist/checknow.awk up to 1.1.1.2
external/public-domain/tz/dist/etcetera up to 1.1.1.8
external/public-domain/tz/dist/europe up to 1.1.1.39
external/public-domain/tz/dist/leap-seconds.list up to 1.7
external/public-domain/tz/dist/leapseconds up to 1.7
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.14
external/public-domain/tz/dist/northamerica up to 1.1.1.35
external/public-domain/tz/dist/southamerica up to 1.1.1.25
external/public-domain/tz/dist/theory.html up to 1.1.1.19
external/public-domain/tz/dist/version up to 1.12
external/public-domain/tz/dist/zishrink.awk up to 1.1.1.9
external/public-domain/tz/dist/zonenow.tab up to 1.1.1.2
doc/3RDPARTY apply patch
Updated tzdata to 2024a
@
text
@a2480 11
# From Zhanbolat Raimbekov (2024-01-19):
# Kazakhstan (all parts) switching to UTC+5 on March 1, 2024
# https://www.gov.kz/memleket/entities/mti/press/news/details/688998?lang=ru
# [in Russian]
# (2024-01-20): https://primeminister.kz/ru/decisions/19012024-20
#
# From Alexander Krivenyshev (2024-01-19):
# According to a different news and the official web site for the Ministry of
# Trade and Integration of the Republic of Kazakhstan:
# https://en.inform.kz/news/kazakhstan-to-switch-to-single-hour-zone-mar-1-54ad0b/
d2484 2
a2485 5
# This includes Abai/Abay (ISO 3166-2 code KZ-10), Aqmola/Akmola (KZ-11),
# Almaty (KZ-19), Almaty city (KZ-75), Astana city (KZ-71),
# East Kazkhstan (KZ-63), Jambyl/Zhambyl (KZ-31), Jetisu/Zhetysu (KZ-33),
# Karaganda (KZ-35), North Kazakhstan (KZ-59), Pavlodar (KZ-55),
# Shyumkent city (KZ-79), Turkistan (KZ-61), and Ulytau (KZ-62).
d2491 2
a2492 3
6:00 - +06 2024 Mar 1 0:00
5:00 - +05
# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-43)
d2505 2
a2506 1
# Qostanay (aka Kostanay, Kustanay) (KZ-39)
d2517 3
a2519 3
6:00 - +06 2024 Mar 1 0:00
5:00 - +05
# Aqtöbe (aka Aktobe, formerly Aktyubinsk) (KZ-15)
d2529 1
a2529 1
# Mangghystaū (KZ-47)
d2541 1
a2541 1
# Atyraū (KZ-23) is like Mangghystaū except it switched from
d2552 1
a2552 1
# West Kazakhstan (KZ-27)
d3483 1
a3483 8
# From Heba Hamad (2024-01-25):
# the summer time for the years 2024,2025 will begin in Palestine
# from Saturday at 02:00 AM by 60 minutes forward as shown below:
# year date
# 2024 2024-04-20
# 2025 2025-04-12
#
# From Paul Eggert (2024-01-25):
d3487 1
a3487 1
# to DST at 02:00 the second Saturday after Ramadan, and that
d3491 1
a3491 1
# 2026 through 2086 by running the following program under GNU Emacs 29.2,
d3495 1
a3495 1
# (let ((islamic-year 1447))
a3503 1
# (setq b (+ 7 b))
d3554 2
a3555 2
Rule Palestine 2024 only - Apr 20 2:00 1:00 S
Rule Palestine 2025 only - Apr 12 2:00 1:00 S
d3561 2
d3564 1
a3564 2
Rule Palestine 2040 only - Oct 20 2:00 1:00 S
Rule Palestine 2040 2067 - Oct Sat<=30 2:00 0 -
d3566 1
a3566 1
Rule Palestine 2041 only - Oct 5 2:00 1:00 S
d3568 1
a3568 1
Rule Palestine 2042 only - Sep 27 2:00 1:00 S
d3570 1
a3570 1
Rule Palestine 2043 only - Sep 19 2:00 1:00 S
d3572 1
a3572 1
Rule Palestine 2044 only - Sep 3 2:00 1:00 S
d3574 1
a3574 1
Rule Palestine 2045 only - Aug 26 2:00 1:00 S
d3576 1
a3576 1
Rule Palestine 2046 only - Aug 18 2:00 1:00 S
d3578 1
a3578 1
Rule Palestine 2047 only - Aug 3 2:00 1:00 S
d3580 1
a3580 1
Rule Palestine 2048 only - Jul 25 2:00 1:00 S
d3582 1
a3582 1
Rule Palestine 2049 only - Jul 10 2:00 1:00 S
d3584 1
a3584 1
Rule Palestine 2050 only - Jul 2 2:00 1:00 S
d3586 1
a3586 1
Rule Palestine 2051 only - Jun 24 2:00 1:00 S
d3588 1
a3588 1
Rule Palestine 2052 only - Jun 8 2:00 1:00 S
d3590 1
a3590 1
Rule Palestine 2053 only - May 31 2:00 1:00 S
d3592 5
a3596 6
Rule Palestine 2054 only - May 23 2:00 1:00 S
Rule Palestine 2055 only - May 8 2:00 1:00 S
Rule Palestine 2056 only - Apr 29 2:00 1:00 S
Rule Palestine 2057 only - Apr 14 2:00 1:00 S
Rule Palestine 2058 only - Apr 6 2:00 1:00 S
Rule Palestine 2059 max - Mar Sat<=30 2:00 1:00 S
d3602 1
a3602 1
Rule Palestine 2072 only - Oct 22 2:00 1:00 S
d3605 1
a3605 1
Rule Palestine 2073 only - Oct 14 2:00 1:00 S
d3607 1
a3607 1
Rule Palestine 2074 only - Oct 6 2:00 1:00 S
d3609 1
a3609 1
Rule Palestine 2075 only - Sep 21 2:00 1:00 S
d3611 1
a3611 1
Rule Palestine 2076 only - Sep 12 2:00 1:00 S
d3613 1
a3613 1
Rule Palestine 2077 only - Sep 4 2:00 1:00 S
d3615 1
a3615 1
Rule Palestine 2078 only - Aug 20 2:00 1:00 S
d3617 1
a3617 1
Rule Palestine 2079 only - Aug 12 2:00 1:00 S
d3619 1
a3619 1
Rule Palestine 2080 only - Jul 27 2:00 1:00 S
d3621 1
a3621 1
Rule Palestine 2081 only - Jul 19 2:00 1:00 S
d3623 1
a3623 1
Rule Palestine 2082 only - Jul 11 2:00 1:00 S
d3625 1
a3625 1
Rule Palestine 2083 only - Jun 26 2:00 1:00 S
d3627 1
a3627 1
Rule Palestine 2084 only - Jun 17 2:00 1:00 S
d3629 1
a3629 1
Rule Palestine 2085 only - Jun 9 2:00 1:00 S
d3631 1
a3631 1
Rule Palestine 2086 only - May 25 2:00 1:00 S
d3659 1
a3659 1
# From Paul Eggert (2024-01-21):
d3667 1
a3667 1
# https://webspace.science.uu.nl/~gent0113/idl/idl_philippines.htm
d4084 1
a4084 2
# From Paul Eggert (2024-01-14) after a 2014 heads-up from Trần Ngọc Quân
# and a 2024-01-14 heads-up from Đoàn Trần Công Danh:
d4114 2
a4115 5
# Hoàng Xuân Hãn: "Lịch và lịch Việt Nam". Tập san Khoa học Xã hội,
# No. 9, Paris, February 1982.
#
# Lê Thành Lân: "Lịch và niên biểu lịch sử hai mươi thế kỷ (0001-2010)",
# NXB Thống kê, Hanoi, 2000.
d4117 2
a4118 2
# Lê Thành Lân: "Lịch hai thế kỷ (1802-2010) và các lịch vĩnh cửu",
# NXB Thuận Hoá, Huế, 1995.
d4120 2
a4121 20
# Here is the decision for the September 1945 transition:
# Võ Nguyên Giáp, Việt Nam Dân Quốc Công Báo, No. 1 (1945-09-29), page 13
# http://baochi.nlv.gov.vn/baochi/cgi-bin/baochi?a=d&d=JwvzO19450929.2.5&dliv=none
# It says that on 1945-09-01 at 24:00, Vietnam moved back two hours, to +07.
# It also mentions a 1945-03-29 decree (by a Japanese Goveror-General)
# to set the time zone to +09, but does not say whether that decree
# merely legalized an earlier change to +09.
#
# July 1955 transition:
# Ngô Đình Diệm, Công Báo Việt Nam, No. 92 (1955-07-02), page 1780-1781
# Ordinance (Dụ) No. 46 (1955-06-25)
# http://ddsnext.crl.edu/titles/32341#?c=0&m=29&s=0&cv=4&r=0&xywh=-89%2C342%2C1724%2C1216
# It says that on 1955-07-01 at 01:00, South Vietnam moved back 1 hour (to +07).
#
# December 1959 transition:
# Ngô Đình Diệm, Công Báo Việt Nam Cộng Hòa, 1960 part 1 (1960-01-02), page 62
# Decree (Sắc lệnh) No. 362-TTP (1959-12-30)
# http://ddsnext.crl.edu/titles/32341#?c=0&m=138&s=0&cv=793&r=0&xywh=-54%2C1504%2C1705%2C1202
# It says that on 1959-12-31 at 23:00, South Vietnam moved forward 1 hour (to +08).
d4129 1
a4129 1
9:00 - +09 1945 Sep 1 24:00
d4131 1
a4131 1
8:00 - +08 1955 Jul 1 01:00
@
1.1.1.17
log
@Import tzdata2017c from ftp://ftp.iana.org/tz/releases/tzdata2017c.tar.gz
Northern Cyprus switches from +03 to +02/+03 on 2017-10-29.
Fiji ends DST 2018-01-14, not 2018-01-21.
Namibia switches from +01/+02 to +02 on 2018-04-01.
Sudan switches from +03 to +02 on 2017-11-01.
Tonga likely switches from +13/+14 to +13 on 2017-11-05.
Turks & Caicos switches from -04 to -05/-04 on 2018-11-04.
Some corrections to (mostly ancient) historical data.
@
text
@d29 1
a29 1
# https://www.jstor.org/stable/1774359
d78 2
a79 2
Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 S
Rule RussiaAsia 1996 2010 - Oct lastSun 2:00s 0 -
a111 3
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 S
Rule Armenia 2011 only - Oct lastSun 2:00s 0 -
d118 1
a118 2
4:00 RussiaAsia +04/+05 2011
4:00 Armenia +04/+05
d130 1
a130 1
# https://www.azernews.az/azerbaijan/94137.html
d171 1
a171 1
# https://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601
d175 1
a175 1
# https://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html
a260 6
# From Paul Eggert (2017-04-20):
# Page 27 of Reed & Low (cited for Asia/Kolkata) says "Rangoon local time is
# used upon the railways and telegraphs of Burma, and is 6h. 24m. 47s. ahead
# of Greenwich." This refers to the period before Burma's transition to +0630,
# a transition for which Shanks is the only source.
d262 2
a263 2
Zone Asia/Yangon 6:24:47 - LMT 1880 # or Rangoon
6:24:47 - RMT 1920 # Rangoon local time
d320 1
a320 1
# https://www.astro.com/atlas site [with provinces and county
d472 1
a472 1
# https://content.time.com/time/magazine/article/0,9171,960684,00.html
d629 1
a629 1
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
d642 1
a642 1
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
a777 6
# From Paul Eggert (2017-10-18):
# Northern Cyprus will reinstate winter time on October 29, thus
# staying in sync with the rest of Cyprus. See: Anastasiou A.
# Cyprus to remain united in time. Cyprus Mail 2017-10-17.
# https://cyprus-mail.com/2017/10/17/cyprus-remain-united-time/
d795 1
a795 2
3:00 - +03 2017 Oct 29 1:00u
2:00 EUAsia EE%sT
d855 1
a855 1
# (1999-12-26/31):
d883 1
a883 1
# https://www.theatlantic.com/technology/archive/2015/12/the-creation-of-modern-time/421419/
d890 4
a893 45
# From Paul Eggert (2017-04-20):
# Good luck trying to nail down old timekeeping records in India.
# "... in the nineteenth century ... Madras Observatory took its magnetic
# measurements on Göttingen time, its meteorological measurements on Madras
# (local) time, dropped its time ball on Greenwich (ocean navigator's) time,
# and distributed civil (local time)." -- Bartky IR. Selling the true time:
# 19th-century timekeeping in america. Stanford U Press (2000), 247 note 19.
# "A more potent cause of resistance to the general adoption of the present
# standard time lies in the fact that it is Madras time. The citizen of
# Bombay, proud of being 'primus in Indis' and of Calcutta, equally proud of
# his city being the Capital of India, and - for a part of the year - the Seat
# of the Supreme Government, alike look down on Madras, and refuse to change
# the time they are using, for that of what they regard as a benighted
# Presidency; while Madras, having for long given the standard time to the
# rest of India, would resist the adoption of any other Indian standard in its
# place." -- Oldham RD. On Time in India: a suggestion for its improvement.
# Proceedings of the Asiatic Society of Bengal (April 1899), 49-55.
#
# "In 1870 ... Madras time - 'now used by the telegraph and regulated from the
# only government observatory' - was suggested as a standard railway time,
# first to be adopted on the Great Indian Peninsular Railway (GIPR)....
# Calcutta, Bombay, and Karachi, were to be allowed to continue with their
# local time for civil purposes." - Prasad R. Tracks of Change: Railways and
# Everyday Life in Colonial India. Cambridge University Press (2016), 145.
#
# Reed S, Low F. The Indian Year Book 1936-37. Bennett, Coleman, pp 27-8.
# https://archive.org/details/in.ernet.dli.2015.282212
# This lists +052110 as Madras local time used in railways, and says that on
# 1906-01-01 railways and telegraphs in India switched to +0530. Some
# municipalities retained their former time, and the time in Calcutta
# continued to depend on whether you were at the railway station or at
# government offices. Government time was at +055320 (according to Shanks) or
# at +0554 (according to the Indian Year Book). Railway time is more
# appropriate for our purposes, as it was better documented, it is what we do
# elsewhere (e.g., Europe/London before 1880), and after 1906 it was
# consistent in the region now identified by Asia/Kolkata. So, use railway
# time for 1870-1941. Shanks is our only (and dubious) source for the
# 1941-1945 data.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kolkata 5:53:28 - LMT 1854 Jun 28 # Kolkata
5:53:20 - HMT 1870 # Howrah Mean Time?
5:21:10 - MMT 1906 Jan 1 # Madras local time
5:30 - IST 1941 Oct
5:30 1:00 +0630 1942 May 15
d897 1
a897 1
# Since 1970 the following are like Asia/Kolkata:
d1039 1
a1039 1
# https://uk.reuters.com/article/oilRpt/idUKBLA65048420070916
d1138 1
a1138 1
# https://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
d1446 1
a1446 1
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
d1451 1
a1451 1
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
d1513 1
a1513 1
# https://www.timeanddate.com/news/time/jordan-reverses-dst-decision.html
d1871 1
a1871 1
# https://mm.icann.org/pipermail/tz/2014-October/021830.html
d1873 1
a1873 1
# https://ko.wikipedia.org/wiki/한국_표준시
d2095 1
a2095 1
# https://www.timeanddate.com/worldclock/city.html?n=1026
d2225 1
a2225 1
# http://www.worldtimezone.com/dst_news/dst_news_pakistan01.html
d2291 1
a2291 1
# https://www.timeanddate.com/news/time/pakistan-ends-dst09.html
d2473 1
a2473 1
# https://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html
d2511 1
a2511 1
# https://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html
d2521 1
a2521 1
# https://www.timeanddate.com/news/time/palestine-dst-2011.html
d2531 1
a2531 1
# https://www.jpost.com/MiddleEast/Article.aspx?id=235650
d2552 1
a2552 1
# https://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html
d2572 1
a2572 1
# and https://www.raya.ps/ar/news/890705.html say Palestine areas will
d2576 1
a2576 1
# https://www.timeanddate.com/time/change/west-bank/ramallah?year=2014
d2600 2
a2601 2
# https://www.timeanddate.com/time/change/gaza-strip/gaza
# https://www.timeanddate.com/time/change/west-bank/hebron
d2664 1
a2664 1
# https://www.staff.science.uu.nl/~gent0113/idl/idl_philippines.htm
d2928 1
a2928 1
# https://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html
d2955 1
a2955 1
# https://www.timeanddate.com/news/time/syria-dst-2012.html
d3038 1
a3038 1
# https://mm.icann.org/pipermail/tz/2014-October/021654.html
@
1.1.1.18
log
@Import tzdata2018c from ftp://ftp.iana.org/tz/releases/tzdata2018c.tar.gz
Summary of changes in tzdata2018c (2018-01-22 23:00:44 -0800):
Summary of changes in tzdata2018b (2018-01-17 23:24:48 -0800):
Summary of changes in tzdata2018a (2018-01-12 22:29:21 -0800):
2018a and 2018b were (kind of) released, but never announced.
Some "issues" were found with them that caused the relatively
quick updates...
The updates are from the previous version (2017c) to the
current one (2018c) - that 2018a & 2018b intervened is best
forgotten... (changes in 2018a that were corrected (2018b) or
reverted (2018c) are not mentioned).
Briefly:
Sao Tome and Principe (An island nation off west coast of Equatorial Africa)
switched from +00 to +01.
Brazil's DST will now start on November's first Sunday.
Use Debian-style installation locations, instead of 4.3BSD-style.
(this does not affect NetBSD, we do not use the tzdata Makefile)
Changes to past and future time stamps
Sao Tome and Principe switched from +00 to +01 on 2018-01-01 at
01:00. (Thanks to Steffen Thorsen and Michael Deckers.)
Changes to future time stamps
Starting in 2018 southern Brazil will begin DST on November's
first Sunday instead of October's third Sunday. (Thanks to
Steffen Thorsen.)
Changes to past time stamps
Japanese DST transitions (1948-1951) were Sundays at 00:00, not
Saturdays or Sundays at 02:00. (Thanks to Takayuki Nikai.)
A discrepancy of 4 s in timestamps before 1931 in South Sudan has
been corrected. The 'backzone' and 'zone.tab' files did not agree
with the 'africa' and 'zone1970.tab' files. (Problem reported by
Michael Deckers.)
The abbreviation invented for Bolivia Summer Time (1931-2) is now
BST instead of BOST, to be more consistent with the convention
used for Latvian Summer Time (1918-9) and for British Summer Time.
@
text
@d53 1
a53 1
# and +0330 for integer hour and minute UT offsets. Although earlier
d650 1
a650 1
# (UT+9). The adoption began on Oct 1, 1937. The original text can
d654 1
a654 1
# That is, the time zone of Taipei switched to UT+9 on Oct 1, 1937.
d657 2
a658 2
# I've found more evidence about when the time zone was switched from UT+9
# back to UT+8 after WW2. I believe it was on Sep 21, 1945. In a document
d660 1
a660 1
# zone back to Western Standard Time (UT+8) on Sep 21. And in another
d1467 11
a1477 11
# From Takayuki Nikai (2018-01-19):
# The source of information is Japanese law.
# http://www.shugiin.go.jp/internet/itdb_housei.nsf/html/houritsu/00219480428029.htm
# http://www.shugiin.go.jp/internet/itdb_housei.nsf/html/houritsu/00719500331039.htm
# ... In summary, it is written as follows. From 24:00 on the first Saturday
# in May, until 0:00 on the day after the second Saturday in September.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Japan 1948 only - May Sat>=1 24:00 1:00 D
Rule Japan 1948 1951 - Sep Sun>=9 0:00 0 S
Rule Japan 1949 only - Apr Sat>=1 24:00 1:00 D
Rule Japan 1950 1951 - May Sat>=1 24:00 1:00 D
d1508 1
a1508 1
# Central Time (UT+9). The adoption began on Oct 1, 1937.
d2069 2
a2070 2
Zone Indian/Maldives 4:54:00 - LMT 1880 # Malé
4:54:00 - MMT 1960 # Malé Mean Time
@
1.1.1.18.2.1
log
@Resolve conflicts between branch and HEAD
@
text
@d72 1
a72 1
Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 -
d75 1
a75 1
Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 -
d78 1
a78 1
Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 -
d113 1
a113 1
Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 -
d139 1
a139 1
Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 -
d226 1
a226 1
Rule Dhaka 2009 only - Jun 19 23:00 1:00 -
a766 1
# See Europe/Lisbon for info about the 1912 transition.
d768 1
a768 1
Zone Asia/Macau 7:34:20 - LMT 1911 Dec 31 16:00u
d1109 47
a1155 47
Rule Iran 1978 1980 - Mar 21 0:00 1:00 -
Rule Iran 1978 only - Oct 21 0:00 0 -
Rule Iran 1979 only - Sep 19 0:00 0 -
Rule Iran 1980 only - Sep 23 0:00 0 -
Rule Iran 1991 only - May 3 0:00 1:00 -
Rule Iran 1992 1995 - Mar 22 0:00 1:00 -
Rule Iran 1991 1995 - Sep 22 0:00 0 -
Rule Iran 1996 only - Mar 21 0:00 1:00 -
Rule Iran 1996 only - Sep 21 0:00 0 -
Rule Iran 1997 1999 - Mar 22 0:00 1:00 -
Rule Iran 1997 1999 - Sep 22 0:00 0 -
Rule Iran 2000 only - Mar 21 0:00 1:00 -
Rule Iran 2000 only - Sep 21 0:00 0 -
Rule Iran 2001 2003 - Mar 22 0:00 1:00 -
Rule Iran 2001 2003 - Sep 22 0:00 0 -
Rule Iran 2004 only - Mar 21 0:00 1:00 -
Rule Iran 2004 only - Sep 21 0:00 0 -
Rule Iran 2005 only - Mar 22 0:00 1:00 -
Rule Iran 2005 only - Sep 22 0:00 0 -
Rule Iran 2008 only - Mar 21 0:00 1:00 -
Rule Iran 2008 only - Sep 21 0:00 0 -
Rule Iran 2009 2011 - Mar 22 0:00 1:00 -
Rule Iran 2009 2011 - Sep 22 0:00 0 -
Rule Iran 2012 only - Mar 21 0:00 1:00 -
Rule Iran 2012 only - Sep 21 0:00 0 -
Rule Iran 2013 2015 - Mar 22 0:00 1:00 -
Rule Iran 2013 2015 - Sep 22 0:00 0 -
Rule Iran 2016 only - Mar 21 0:00 1:00 -
Rule Iran 2016 only - Sep 21 0:00 0 -
Rule Iran 2017 2019 - Mar 22 0:00 1:00 -
Rule Iran 2017 2019 - Sep 22 0:00 0 -
Rule Iran 2020 only - Mar 21 0:00 1:00 -
Rule Iran 2020 only - Sep 21 0:00 0 -
Rule Iran 2021 2023 - Mar 22 0:00 1:00 -
Rule Iran 2021 2023 - Sep 22 0:00 0 -
Rule Iran 2024 only - Mar 21 0:00 1:00 -
Rule Iran 2024 only - Sep 21 0:00 0 -
Rule Iran 2025 2027 - Mar 22 0:00 1:00 -
Rule Iran 2025 2027 - Sep 22 0:00 0 -
Rule Iran 2028 2029 - Mar 21 0:00 1:00 -
Rule Iran 2028 2029 - Sep 21 0:00 0 -
Rule Iran 2030 2031 - Mar 22 0:00 1:00 -
Rule Iran 2030 2031 - Sep 22 0:00 0 -
Rule Iran 2032 2033 - Mar 21 0:00 1:00 -
Rule Iran 2032 2033 - Sep 21 0:00 0 -
Rule Iran 2034 2035 - Mar 22 0:00 1:00 -
Rule Iran 2034 2035 - Sep 22 0:00 0 -
d1162 2
a1163 2
Rule Iran 2036 max - Mar 21 0:00 1:00 -
Rule Iran 2036 max - Sep 21 0:00 0 -
d1199 6
a1204 6
Rule Iraq 1982 only - May 1 0:00 1:00 -
Rule Iraq 1982 1984 - Oct 1 0:00 0 -
Rule Iraq 1983 only - Mar 31 0:00 1:00 -
Rule Iraq 1984 1985 - Apr 1 0:00 1:00 -
Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 -
Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 -
d1208 2
a1209 2
Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 -
Rule Iraq 1991 2007 - Oct 1 3:00s 0 -
d1481 2
a1482 1
# Observatory: 139° 44' 40.90" E (9h 18m 58.727s), 35° 39' 16.0" N.
d1490 1
a1490 1
# which stands for the time on 135° E.
d1493 1
a1493 1
# time", which stands for the time on 120° E.... But "western standard
d1906 1
a1906 1
Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 -
d1908 1
a1908 1
Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 -
d2040 1
a2040 1
Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 -
d2185 1
a2185 1
Rule Mongol 1983 1984 - Apr 1 0:00 1:00 -
d2202 1
a2202 1
Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 -
d2205 1
a2205 1
Rule Mongol 2001 only - Apr lastSat 2:00 1:00 -
d2207 2
a2208 2
Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 -
Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 -
d2642 3
a2660 10
# From Sharef Mustafa (2018-03-16):
# Palestine summer time will start on Mar 24th 2018 by advancing the
# clock by 60 minutes as per Palestinian cabinet decision published on
# the offical website, though the decree did not specify the exact
# time of the time shift.
# http://www.palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e7a42ab7-ee23-435a-b9c8-a4f7e81f3817
#
# From Paul Eggert (2018-03-16):
# For 2016 on, predict spring transitions on March's fourth Saturday at 01:00.
d2690 1
a2690 1
Rule Palestine 2016 max - Mar Sat>=22 1:00 1:00 S
d2740 1
a2740 1
Rule Phil 1936 only - Nov 1 0:00 1:00 -
d2742 1
a2742 1
Rule Phil 1954 only - Apr 12 0:00 1:00 -
d2744 1
a2744 1
Rule Phil 1978 only - Mar 22 0:00 1:00 -
d3100 1
a3100 1
# Phù Liễn Observatory, legally 104° 17' 17" east of Paris.
d3102 1
a3102 1
# the Paris Meridian (2° 20' 14.03" E); the former yields 07:06:30.1333...
@
1.1.1.18.2.2
log
@Sync with HEAD
@
text
@a1985 13
# From Kang Seonghoon (2018-04-29):
# North Korea will revert its time zone from UTC+8:30 (PYT; Pyongyang
# Time) back to UTC+9 (KST; Korea Standard Time).
#
# From Seo Sanghyeon (2018-04-30):
# Rodong Sinmun 2018-04-30 announced Pyongyang Time transition plan.
# https://www.nknews.org/kcna/wp-content/uploads/sites/5/2018/04/rodong-2018-04-30.pdf
# ... the transition date is 2018-05-05 ... Citation should be Decree
# No. 2232 of April 30, 2018, of the Presidium of the Supreme People's
# Assembly, as published in Rodong Sinmun.
# From Tim Parenti (2018-04-29):
# It appears to be the front page story at the top in the right-most column.
d1997 1
a1997 2
8:30 - KST 2018 May 5
9:00 - KST
d2661 1
a2661 1
# the official website, though the decree did not specify the exact
@
1.1.1.18.2.3
log
@Sync with head
@
text
@a0 2
# tzdb data for Asia and environs
d9 1
a9 1
# From Paul Eggert (2018-06-19):
d38 1
a38 2
# The following alphabetic abbreviations appear in these tables
# (corrections are welcome):
a46 1
# 8:00 PST PDT* Philippine Standard Time
a51 1
# *I invented the abbreviation PDT; see "Philippines" below.
a283 23
# From Paul Eggert (2018-10-02):
# The following comes from Table 1 of:
# Li Yu. Research on the daylight saving movement in 1940s Shanghai.
# Nanjing Journal of Social Sciences. 2014;(2):144-50.
# http://oversea.cnki.net/kns55/detail.aspx?dbname=CJFD2014&filename=NJSH201402020
# The table lists dates only; I am guessing 00:00 and 24:00 transition times.
# Also, the table lists the planned end of DST in 1949, but the corresponding
# zone line cuts this off on May 28, when the Communists took power.
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Shang 1940 only - Jun 1 0:00 1:00 D
Rule Shang 1940 only - Oct 12 24:00 0 S
Rule Shang 1941 only - Mar 15 0:00 1:00 D
Rule Shang 1941 only - Nov 1 24:00 0 S
Rule Shang 1942 only - Jan 31 0:00 1:00 D
Rule Shang 1945 only - Sep 1 24:00 0 S
Rule Shang 1946 only - May 15 0:00 1:00 D
Rule Shang 1946 only - Sep 30 24:00 0 S
Rule Shang 1947 only - Apr 15 0:00 1:00 D
Rule Shang 1947 only - Oct 31 24:00 0 S
Rule Shang 1948 1949 - May 1 0:00 1:00 D
Rule Shang 1948 1949 - Sep 30 24:00 0 S #plan
d310 12
a321 27
# From P Chan (2018-05-07):
# The start and end time of DST in China [from 1986 on] should be 2:00
# (i.e. 2:00 to 3:00 at the start and 2:00 to 1:00 at the end)....
# Government notices about summer time:
#
# 1986-04-12 http://www.zj.gov.cn/attach/zfgb/198608.pdf p.21-22
# (To establish summer time from 1986. On 4 May, set the clocks ahead one hour
# at 2 am. On 14 September, set the clocks backward one hour at 2 am.)
#
# 1987-02-15 http://www.gov.cn/gongbao/shuju/1987/gwyb198703.pdf p.114
# (Summer time in 1987 to start from 12 April until 13 September)
#
# 1987-09-09 http://www.gov.cn/gongbao/shuju/1987/gwyb198721.pdf p.709
# (From 1988, summer time to start from 2 am of the first Sunday of mid-April
# until 2 am of the first Sunday of mid-September)
#
# 1992-03-03 http://www.gov.cn/gongbao/shuju/1992/gwyb199205.pdf p.152
# (To suspend summer time from 1992)
#
# The first page of People's Daily on 12 April 1988 stating that summer time
# to begin on 17 April.
# http://data.people.com.cn/pic/101p/1988/04/1988041201.jpg
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule PRC 1986 only - May 4 2:00 1:00 D
Rule PRC 1986 1991 - Sep Sun>=11 2:00 0 S
Rule PRC 1987 1991 - Apr Sun>=11 2:00 1:00 D
d343 1
a343 1
# Guo Qing-sheng (National Time-Service Center, CAS, Xi'an 710600, China)
d346 1
a346 2
# (Zhongguo ke ji shi liao, 中国科技史料). 2003;24(1):5-9.
# http://oversea.cnki.net/kcms/detail/detail.aspx?filename=ZGKS200301000&dbname=CJFD2003
d523 1
a523 1
8:00 Shang C%sT 1949 May 28
d752 18
a769 134
#
# From P Chan (2018-05-10):
# * LegisMac
# http://legismac.safp.gov.mo/legismac/descqry/Descqry.jsf?lang=pt
# A database for searching titles of legal documents of Macau in
# Chinese and Portuguese. The term "HORÁRIO DE VERÃO" can be used for
# searching decrees about summer time.
# * Archives of Macao
# http://www.archives.gov.mo/en/bo/
# It contains images of old official gazettes.
# * The Macao Meteorological and Geophysical Bureau have a page listing the
# summer time history. But it is not complete and has some mistakes.
# http://www.smg.gov.mo/smg/geophysics/e_t_Summer%20Time.htm
# Macau adopted GMT+8 on 30 Oct 1904 to follow Hong Kong. Clocks were
# advanced by 25 minutes and 50 seconds. Which means the LMT used was
# +7:34:10. As stated in the "Portaria No. 204" dated 21 October 1904
# and published in the Official Gazette on 29 October 1904.
# http://igallery.icm.gov.mo/Images/Archives/BO/MO_AH_PUB_BO_1904_10/MO_AH_PUB_BO_1904_10_00025_Grey.JPG
#
# Therefore the 1911 decree of Portugal did not change time in Macau.
#
# From LegisMac, here is a list of decrees that changed the time ...
# [Decree Gazette-no. date; titles omitted in this quotation]
# DIL 732 BOCM 51 1941.12.20
# DIL 764 BOCM 9S 1942.04.30
# DIL 781 BOCM 21 1942.10.10
# PT 3434 BOCM 8S 1943.04.17
# PT 3504 BOCM 20 1943.09.25
# PT 3843 BOCM 39 1945.09.29
# PT 3961 BOCM 17 1946.04.27
# PT 4026 BOCM 39 1946.09.28
# PT 4153 BOCM 16 1947.04.10
# PT 4271 BOCM 48 1947.11.29
# PT 4374 BOCM 18 1948.05.01
# PT 4465 BOCM 44 1948.10.30
# PT 4590 BOCM 14 1949.04.02
# PT 4666 BOCM 44 1949.10.29
# PT 4771 BOCM 12 1950.03.25
# PT 4838 BOCM 43 1950.10.28
# PT 4946 BOCM 12 1951.03.24
# PT 5025 BO 43 1951.10.27
# PT 5149 BO 14 1952.04.05
# PT 5251 BO 43 1952.10.25
# PT 5366 BO 13 1953.03.28
# PT 5444 BO 44 1953.10.31
# PT 5540 BO 12 1954.03.20
# PT 5589 BO 44 1954.10.30
# PT 5676 BO 12 1955.03.19
# PT 5739 BO 45 1955.11.05
# PT 5823 BO 11 1956.03.17
# PT 5891 BO 44 1956.11.03
# PT 5981 BO 12 1957.03.23
# PT 6064 BO 43 1957.10.26
# PT 6172 BO 12 1958.03.22
# PT 6243 BO 43 1958.10.25
# PT 6341 BO 12 1959.03.21
# PT 6411 BO 43 1959.10.24
# PT 6514 BO 11 1960.03.12
# PT 6584 BO 44 1960.10.29
# PT 6721 BO 10 1961.03.11
# PT 6815 BO 43 1961.10.28
# PT 6947 BO 10 1962.03.10
# PT 7080 BO 43 1962.10.27
# PT 7218 BO 12 1963.03.23
# PT 7340 BO 43 1963.10.26
# PT 7491 BO 11 1964.03.14
# PT 7664 BO 43 1964.10.24
# PT 7846 BO 15 1965.04.10
# PT 7979 BO 42 1965.10.16
# PT 8146 BO 15 1966.04.09
# PT 8252 BO 41 1966.10.08
# PT 8429 BO 15 1967.04.15
# PT 8540 BO 41 1967.10.14
# PT 8735 BO 15 1968.04.13
# PT 8860 BO 41 1968.10.12
# PT 9035 BO 16 1969.04.19
# PT 9156 BO 42 1969.10.18
# PT 9328 BO 15 1970.04.11
# PT 9418 BO 41 1970.10.10
# PT 9587 BO 14 1971.04.03
# PT 9702 BO 41 1971.10.09
# PT 38-A/72 BO 14 1972.04.01
# PT 126-A/72 BO 41 1972.10.07
# PT 61/73 BO 14 1973.04.07
# PT 182/73 BO 40 1973.10.06
# PT 282/73 BO 51 1973.12.22
# PT 177/74 BO 41 1974.10.12
# PT 51/75 BO 15 1975.04.12
# PT 173/75 BO 41 1975.10.11
# PT 67/76/M BO 14 1976.04.03
# PT 169/76/M BO 41 1976.10.09
# PT 78/79/M BO 19 1979.05.12
# PT 166/79/M BO 42 1979.10.20
# Note that DIL 732 does not belong to "HORÁRIO DE VERÃO" according to
# LegisMac.... Note that between 1942 and 1945, the time switched
# between GMT+9 and GMT+10. Also in 1965 and 1965 the DST ended at 2:30am.
# From Paul Eggert (2018-05-10):
# The 1904 decree says that Macau changed from the meridian of
# Fortaleza do Monte, presumably the basis for the 7:34:10 for LMT.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Macau 1942 1943 - Apr 30 23:00 1:00 -
Rule Macau 1942 only - Nov 17 23:00 0 -
Rule Macau 1943 only - Sep 30 23:00 0 S
Rule Macau 1946 only - Apr 30 23:00s 1:00 D
Rule Macau 1946 only - Sep 30 23:00s 0 S
Rule Macau 1947 only - Apr 19 23:00s 1:00 D
Rule Macau 1947 only - Nov 30 23:00s 0 S
Rule Macau 1948 only - May 2 23:00s 1:00 D
Rule Macau 1948 only - Oct 31 23:00s 0 S
Rule Macau 1949 1950 - Apr Sat>=1 23:00s 1:00 D
Rule Macau 1949 1950 - Oct lastSat 23:00s 0 S
Rule Macau 1951 only - Mar 31 23:00s 1:00 D
Rule Macau 1951 only - Oct 28 23:00s 0 S
Rule Macau 1952 1953 - Apr Sat>=1 23:00s 1:00 D
Rule Macau 1952 only - Nov 1 23:00s 0 S
Rule Macau 1953 1954 - Oct lastSat 23:00s 0 S
Rule Macau 1954 1956 - Mar Sat>=17 23:00s 1:00 D
Rule Macau 1955 only - Nov 5 23:00s 0 S
Rule Macau 1956 1964 - Nov Sun>=1 03:30 0 S
Rule Macau 1957 1964 - Mar Sun>=18 03:30 1:00 D
Rule Macau 1965 1973 - Apr Sun>=16 03:30 1:00 D
Rule Macau 1965 1966 - Oct Sun>=16 02:30 0 S
Rule Macau 1967 1976 - Oct Sun>=16 03:30 0 S
Rule Macau 1973 only - Dec 30 03:30 1:00 D
Rule Macau 1975 1976 - Apr Sun>=16 03:30 1:00 D
Rule Macau 1979 only - May 13 03:30 1:00 D
Rule Macau 1979 only - Oct Sun>=16 03:30 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Macau 7:34:10 - LMT 1904 Oct 30
8:00 - CST 1941 Dec 21 23:00
9:00 Macau +09/+10 1945 Sep 30 24:00
a1473 20
# From Phake Nick (2018-09-27):
# [T]he webpage authored by National Astronomical Observatory of Japan
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EF.html
# ... mentioned that using Showa 23 (year 1948) as example, 13pm of September
# 11 in summer time will equal to 0am of September 12 in standard time.
# It cited a document issued by the Liaison Office which briefly existed
# during the postwar period of Japan, where the detail on implementation
# of the summer time is described in the document.
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EFB2C6BBFEB9EFA4CEBCC2BBDCA4CBA4C4A4A4A4C6.pdf
# The text in the document do instruct a fall back to occur at
# September 11, 13pm in summer time, while ordinary citizens can
# change the clock before they sleep.
#
# From Paul Eggert (2018-09-27):
# This instruction is equivalent to "Sat>=8 25:00", so use that. zic treats
# it like "Sun>=9 01:00", which is not quite the same but is the best we can
# do in any POSIX or C platform. The "25:00" assumes zic from 2007 or later,
# which should be safe now.
d1476 1
a1476 1
Rule Japan 1948 1951 - Sep Sat>=8 25:00 0 S
d1858 1
a1858 1
# so include timestamps before 1963.
a1997 4
#
# From Paul Eggert (2018-05-04):
# The BBC reported that the transition was from 23:30 to 24:00 today.
# https://www.bbc.com/news/world-asia-44010705
d2010 1
a2010 1
8:30 - KST 2018 May 4 23:30
d2760 7
a2766 23
# From Paul Goyette (2018-06-15):
# In the Philippines, there is a national law, Republic Act No. 10535
# which declares the official time here as "Philippine Standard Time".
# The act [1] even specifies use of PST as the abbreviation, although
# the FAQ provided by PAGASA [2] uses the "acronym PhST to distinguish
# it from the Pacific Standard Time (PST)."
# [1] http://www.officialgazette.gov.ph/2013/05/15/republic-act-no-10535/
# [2] https://www1.pagasa.dost.gov.ph/index.php/astronomy/philippine-standard-time#republic-act-10535
#
# From Paul Eggert (2018-06-19):
# I surveyed recent news reports, and my impression is that "PST" is
# more popular among reliable English-language news sources. This is
# not just a measure of Google hit counts: it's also the sizes and
# influence of the sources. There is no current abbreviation for DST,
# so use "PDT", the usual American style.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Phil 1936 only - Nov 1 0:00 1:00 D
Rule Phil 1937 only - Feb 1 0:00 0 S
Rule Phil 1954 only - Apr 12 0:00 1:00 D
Rule Phil 1954 only - Jul 1 0:00 0 S
Rule Phil 1978 only - Mar 22 0:00 1:00 D
Rule Phil 1978 only - Sep 21 0:00 0 S
d2770 3
a2772 3
8:00 Phil P%sT 1942 May
9:00 - JST 1944 Nov
8:00 Phil P%sT
d2783 1
a2783 1
# From Paul Eggert (2018-08-29):
d2785 1
a2785 1
# standardized until 1968 or so; we don't know exactly when, and possibly it
a2791 19
# Timekeeping differed depending on who you were and which part of Saudi
# Arabia you were in. In 1969, Elias Antar wrote that although a common
# practice had been to set one's watch to 12:00 (i.e., midnight) at sunset -
# which meant that the time on one side of a mountain could differ greatly from
# the time on the other side - many foreigners set their watches to 6pm
# instead, while airlines instead used UTC +03 (except in Dhahran, where they
# used UTC +04), Aramco used UTC +03 with DST, and the Trans-Arabian Pipe Line
# Company used Aramco time in eastern Saudi Arabia and airline time in western.
# (The American Military Aid Advisory Group used plain UTC.) Antar writes,
# "A man named Higgins, so the story goes, used to run a local power
# station. One day, the whole thing became too much for Higgins and he
# assembled his staff and laid down the law. 'I've had enough of this,' he
# shrieked. 'It is now 12 o'clock Higgins Time, and from now on this station is
# going to run on Higgins Time.' And so, until last year, it did." See:
# Antar E. Dinner at When? Saudi Aramco World, 1969 March/April. 2-3.
# http://archive.aramcoworld.com/issue/196902/dinner.at.when.htm
# newspapers.com says a similar story about Higgins was published in the Port
# Angeles (WA) Evening News, 1965-03-10, page 5, but I lack access to the text.
#
d2801 1
a2801 2
# the country. Presumably this is documenting airline time. Ignore this,
# as it's before our 1970 cutoff.
@
1.1.1.18.2.4
log
@Synch with HEAD
@
text
@d589 1
a589 71
# From Phake Nick (2018-10-27):
# According to Singaporean newspaper
# http://eresources.nlb.gov.sg/newspapers/Digitised/Article/singfreepresswk19041102-1.2.37
# the day that Hong Kong start using GMT+8 should be Oct 30, 1904.
#
# From Paul Eggert (2018-11-17):
# Hong Kong had a time ball near the Marine Police Station, Tsim Sha Tsui.
# "The ball was raised manually each day and dropped at exactly 1pm
# (except on Sundays and Government holidays)."
# Dyson AD. From Time Ball to Atomic Clock. Hong Kong Government. 1983.
#
# "From 1904 October 30 the time-ball at Hong Kong has been dropped by order
# of the Governor of the Colony at 17h 0m 0s G.M.T., which is 23m 18s.14 in
# advance of 1h 0m 0s of Hong Kong mean time."
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc.
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382
#
# From Joseph Myers (2018-11-18):
# An astronomer before 1925 referring to GMT would have been using the old
# astronomical convention where the day started at noon, not midnight.
#
# From Steve Allen (2018-11-17):
# Meteorological Observations made at the Hongkong Observatory in the year 1904
# page 4
# ... the log of drop times in Table II shows that on Sunday 1904-10-30 the
# ball was dropped. So that looks like a special case drop for the sake
# of broadcasting the new local time.
#
# From Phake Nick (2018-11-18):
# According to The Hong Kong Weekly Press, 1904-10-29, p.324, the
# governor of Hong Kong at the time stated that "We are further desired to
# make it known that the change will be effected by firing the gun and by the
# dropping of the Ball at 23min. 18sec. before one."
# From Paul Eggert (2018-11-18):
# See for this; unfortunately Flash is required.
# From Phake Nick (2018-10-26):
# I went to check microfilm records stored at Hong Kong Public Library....
# on September 30 1941, according to Ta Kung Pao (Hong Kong edition), it was
# stated that fallback would occur on the next day (the 1st)'s "03:00 am (Hong
# Kong Time 04:00 am)" and the clock will fall back for a half hour. (03:00
# probably refer to the time commonly used in mainland China at the time given
# the paper's background) ... the sunrise/sunset time given by South China
# Morning Post for October 1st was indeed moved by half an hour compares to
# before. After that, in December, the battle to capture Hong Kong started and
# the library doesn't seems to have any record stored about press during that
# period of time. Some media resumed publication soon after that within the
# same month, but there were not much information about time there. Later they
# started including a radio program guide when they restored radio service,
# explicitly mentioning it use Tokyo standard time, and later added a note
# saying it's half an hour ahead of the old Hong Kong standard time, and it
# also seems to indicate that Hong Kong was not using GMT+8 when it was
# captured by Japan.
#
# Image of related sections on newspaper:
# * 1941-09-30, Ta Kung Pao (Hong Kong), "Winter Time start tomorrow".
# https://i.imgur.com/6waY51Z.jpg (Chinese)
# * 1941-09-29, South China Morning Post, Information on sunrise/sunset
# time and other things for September 30 and October 1.
# https://i.imgur.com/kCiUR78.jpg
# * 1942-02-05. The Hong Kong News, Radio Program Guide.
# https://i.imgur.com/eVvDMzS.jpg
# * 1941-06-14. Hong Kong Daily Press, Daylight Saving from 3am Tomorrow.
# https://i.imgur.com/05KkvtC.png
# * 1941-09-30, Hong Kong Daily Press, Winter Time Warning.
# https://i.imgur.com/dge4kFJ.png
# Also, the Liberation day of Hong Kong after WWII which British rule
# over the territory resumed was August 30, 1945, which I think should
# be the termination date for the use of JST in the territory....
# From Paul Eggert (2018-11-17):
d591 2
a592 2
# https://www.hko.gov.hk/gts/time/Summertime.htm
# as of 2014-06-19:
d594 1
a594 1
# 1941 15 Jun to 30 Sep
d605 1
a605 1
# 1952 6 Apr to 2 Nov
d634 6
a639 9
# The page does not give times of day for transitions,
# or dates for the 1942 and 1945 transitions.
# The Japanese occupation of Hong Kong began 1941-12-25.
# The Japanese surrender of Hong Kong was signed 1945-09-16; see:
# Heaver S. The days after the Pacific war ended: unsettling times
# in Hong Kong. Post Magazine. 2016-06-13.
# https://www.scmp.com/magazines/post-magazine/article/1852990/days-after-pacific-war-ended-unsettling-times-hong-kong
# For lack of anything better, use start of those days as the
# transition times.
d642 2
d650 1
a650 1
Rule HK 1952 1953 - Nov Sun>=1 3:30 0 -
d652 1
d662 3
a664 5
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30 0:36:42
8:00 - HKT 1941 Jun 15 3:30
8:00 1:00 HKST 1941 Oct 1 4:00
8:30 - HKT 1941 Dec 25
9:00 - JST 1945 Sep 16
a1059 10
# British astronomer Henry Park Hollis disliked India Standard Time's offset:
# "A new time system has been proposed for India, Further India, and Burmah.
# The scheme suggested is that the times of the meridians 5½ and 6½ hours
# east of Greenwich should be adopted in these territories. No reason is
# given why hourly meridians five hours and six hours east should not be
# chosen; a plan which would bring the time of India into harmony with
# that of almost the whole of the civilised world."
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc.
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382
d1230 1
a1230 1
# From Paul Eggert (2018-11-30):
d1232 4
a1235 57
# I used the following code in GNU Emacs 26.1 to generate the "Rule Iran"
# lines from 2008 through 2087. Emacs 26.1 uses Ed Reingold's
# cal-persia implementation of Birashk's approximation, which in the
# 2008-2087 range disagrees with the the astronomical Persian calendar
# for Persian years 1404 (Gregorian 2025) and 1437 (Gregorian 2058),
# so the following code special-case those years. See Table 15.1, page 264, of:
# Edward M. Reingold and Nachum Dershowitz, Calendrical Calculations:
# The Ultimate Edition, Cambridge University Press (2018).
# https://www.cambridge.org/fr/academic/subjects/computer-science/computing-general-interest/calendrical-calculations-ultimate-edition-4th-edition
# Page 258, footnote 2, of this book says there is some dispute over what will
# happen in 2091 (and some other years after that), so this code
# stops in 2087, as 2088 and 2089 agree with the "max" rule below.
# (cl-loop
# initially (require 'cal-persia)
# with first-persian-year = 1387
# with last-persian-year = 1466
# ;; Exceptional years in the above range,
# ;; from Reingold & Dershowitz Table 15.1, page 264:
# with exceptional-persian-years = '(1404 1437)
# with range-start = nil
# for persian-year from first-persian-year to last-persian-year
# do
# (let*
# ((exceptional-year-offset
# (if (member persian-year exceptional-persian-years) 1 0))
# (beg-dst-absolute
# (+ (calendar-persian-to-absolute (list 1 1 persian-year))
# exceptional-year-offset))
# (end-dst-absolute
# (+ (calendar-persian-to-absolute (list 6 30 persian-year))
# exceptional-year-offset))
# (next-year-beg-dst-absolute
# (+ (calendar-persian-to-absolute (list 1 1 (1+ persian-year)))
# (if (member (1+ persian-year) exceptional-persian-years) 1 0)))
# (beg-dst (calendar-gregorian-from-absolute beg-dst-absolute))
# (end-dst (calendar-gregorian-from-absolute end-dst-absolute))
# (next-year-beg-dst (calendar-gregorian-from-absolute
# next-year-beg-dst-absolute))
# (year (calendar-extract-year beg-dst))
# (range-end (if range-start year "only")))
# (setq range-start (or range-start year))
# (when (or (/= (calendar-extract-day beg-dst)
# (calendar-extract-day next-year-beg-dst))
# (= persian-year last-persian-year))
# (insert
# (format
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t1:00\t-\n"
# range-start range-end
# (calendar-month-name (calendar-extract-month beg-dst) t)
# (calendar-extract-day beg-dst)))
# (insert
# (format
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t0\t-\n"
# range-start range-end
# (calendar-month-name (calendar-extract-month end-dst) t)
# (calendar-extract-day end-dst)))
# (setq range-start nil))))
d1270 51
a1320 103
Rule Iran 1978 1980 - Mar 20 24:00 1:00 -
Rule Iran 1978 only - Oct 20 24:00 0 -
Rule Iran 1979 only - Sep 18 24:00 0 -
Rule Iran 1980 only - Sep 22 24:00 0 -
Rule Iran 1991 only - May 2 24:00 1:00 -
Rule Iran 1992 1995 - Mar 21 24:00 1:00 -
Rule Iran 1991 1995 - Sep 21 24:00 0 -
Rule Iran 1996 only - Mar 20 24:00 1:00 -
Rule Iran 1996 only - Sep 20 24:00 0 -
Rule Iran 1997 1999 - Mar 21 24:00 1:00 -
Rule Iran 1997 1999 - Sep 21 24:00 0 -
Rule Iran 2000 only - Mar 20 24:00 1:00 -
Rule Iran 2000 only - Sep 20 24:00 0 -
Rule Iran 2001 2003 - Mar 21 24:00 1:00 -
Rule Iran 2001 2003 - Sep 21 24:00 0 -
Rule Iran 2004 only - Mar 20 24:00 1:00 -
Rule Iran 2004 only - Sep 20 24:00 0 -
Rule Iran 2005 only - Mar 21 24:00 1:00 -
Rule Iran 2005 only - Sep 21 24:00 0 -
Rule Iran 2008 only - Mar 20 24:00 1:00 -
Rule Iran 2008 only - Sep 20 24:00 0 -
Rule Iran 2009 2011 - Mar 21 24:00 1:00 -
Rule Iran 2009 2011 - Sep 21 24:00 0 -
Rule Iran 2012 only - Mar 20 24:00 1:00 -
Rule Iran 2012 only - Sep 20 24:00 0 -
Rule Iran 2013 2015 - Mar 21 24:00 1:00 -
Rule Iran 2013 2015 - Sep 21 24:00 0 -
Rule Iran 2016 only - Mar 20 24:00 1:00 -
Rule Iran 2016 only - Sep 20 24:00 0 -
Rule Iran 2017 2019 - Mar 21 24:00 1:00 -
Rule Iran 2017 2019 - Sep 21 24:00 0 -
Rule Iran 2020 only - Mar 20 24:00 1:00 -
Rule Iran 2020 only - Sep 20 24:00 0 -
Rule Iran 2021 2023 - Mar 21 24:00 1:00 -
Rule Iran 2021 2023 - Sep 21 24:00 0 -
Rule Iran 2024 only - Mar 20 24:00 1:00 -
Rule Iran 2024 only - Sep 20 24:00 0 -
Rule Iran 2025 2027 - Mar 21 24:00 1:00 -
Rule Iran 2025 2027 - Sep 21 24:00 0 -
Rule Iran 2028 2029 - Mar 20 24:00 1:00 -
Rule Iran 2028 2029 - Sep 20 24:00 0 -
Rule Iran 2030 2031 - Mar 21 24:00 1:00 -
Rule Iran 2030 2031 - Sep 21 24:00 0 -
Rule Iran 2032 2033 - Mar 20 24:00 1:00 -
Rule Iran 2032 2033 - Sep 20 24:00 0 -
Rule Iran 2034 2035 - Mar 21 24:00 1:00 -
Rule Iran 2034 2035 - Sep 21 24:00 0 -
Rule Iran 2036 2037 - Mar 20 24:00 1:00 -
Rule Iran 2036 2037 - Sep 20 24:00 0 -
Rule Iran 2038 2039 - Mar 21 24:00 1:00 -
Rule Iran 2038 2039 - Sep 21 24:00 0 -
Rule Iran 2040 2041 - Mar 20 24:00 1:00 -
Rule Iran 2040 2041 - Sep 20 24:00 0 -
Rule Iran 2042 2043 - Mar 21 24:00 1:00 -
Rule Iran 2042 2043 - Sep 21 24:00 0 -
Rule Iran 2044 2045 - Mar 20 24:00 1:00 -
Rule Iran 2044 2045 - Sep 20 24:00 0 -
Rule Iran 2046 2047 - Mar 21 24:00 1:00 -
Rule Iran 2046 2047 - Sep 21 24:00 0 -
Rule Iran 2048 2049 - Mar 20 24:00 1:00 -
Rule Iran 2048 2049 - Sep 20 24:00 0 -
Rule Iran 2050 2051 - Mar 21 24:00 1:00 -
Rule Iran 2050 2051 - Sep 21 24:00 0 -
Rule Iran 2052 2053 - Mar 20 24:00 1:00 -
Rule Iran 2052 2053 - Sep 20 24:00 0 -
Rule Iran 2054 2055 - Mar 21 24:00 1:00 -
Rule Iran 2054 2055 - Sep 21 24:00 0 -
Rule Iran 2056 2057 - Mar 20 24:00 1:00 -
Rule Iran 2056 2057 - Sep 20 24:00 0 -
Rule Iran 2058 2059 - Mar 21 24:00 1:00 -
Rule Iran 2058 2059 - Sep 21 24:00 0 -
Rule Iran 2060 2062 - Mar 20 24:00 1:00 -
Rule Iran 2060 2062 - Sep 20 24:00 0 -
Rule Iran 2063 only - Mar 21 24:00 1:00 -
Rule Iran 2063 only - Sep 21 24:00 0 -
Rule Iran 2064 2066 - Mar 20 24:00 1:00 -
Rule Iran 2064 2066 - Sep 20 24:00 0 -
Rule Iran 2067 only - Mar 21 24:00 1:00 -
Rule Iran 2067 only - Sep 21 24:00 0 -
Rule Iran 2068 2070 - Mar 20 24:00 1:00 -
Rule Iran 2068 2070 - Sep 20 24:00 0 -
Rule Iran 2071 only - Mar 21 24:00 1:00 -
Rule Iran 2071 only - Sep 21 24:00 0 -
Rule Iran 2072 2074 - Mar 20 24:00 1:00 -
Rule Iran 2072 2074 - Sep 20 24:00 0 -
Rule Iran 2075 only - Mar 21 24:00 1:00 -
Rule Iran 2075 only - Sep 21 24:00 0 -
Rule Iran 2076 2078 - Mar 20 24:00 1:00 -
Rule Iran 2076 2078 - Sep 20 24:00 0 -
Rule Iran 2079 only - Mar 21 24:00 1:00 -
Rule Iran 2079 only - Sep 21 24:00 0 -
Rule Iran 2080 2082 - Mar 20 24:00 1:00 -
Rule Iran 2080 2082 - Sep 20 24:00 0 -
Rule Iran 2083 only - Mar 21 24:00 1:00 -
Rule Iran 2083 only - Sep 21 24:00 0 -
Rule Iran 2084 2086 - Mar 20 24:00 1:00 -
Rule Iran 2084 2086 - Sep 20 24:00 0 -
Rule Iran 2087 only - Mar 21 24:00 1:00 -
Rule Iran 2087 only - Sep 21 24:00 0 -
#
# The following rules are approximations starting in the year 2088.
# These are the best post-2088 approximations available, given the
# restrictions of a single rule using ordinary Gregorian dates.
d1323 2
a1324 2
Rule Iran 2088 max - Mar 20 24:00 1:00 -
Rule Iran 2088 max - Sep 20 24:00 0 -
d1694 1
a1694 3
# Since 1938, all Japanese possessions have been like Asia/Tokyo,
# except that Truk (Chuuk), Ponape (Pohnpei), and Jaluit (Kosrae) did not
# switch from +10 to +09 until 1941-04-01; see the 'australasia' file.
d1984 2
a1985 4
# From Alexander Konzurovski (2018-12-20):
# Qyzyolrda Region (Asia/Qyzylorda) is changing its time zone from
# UTC+6 to UTC+5 effective December 21st, 2018. The legal document is
# located here: http://adilet.zan.kz/rus/docs/P1800000817 (russian language).
d1999 2
d2011 14
a2024 2
6:00 - +06 2018 Dec 21 0:00
5:00 - +05
a2025 13
# Qostanay (aka Kostanay, Kustanay) (KZ-KUS)
# The 1991/2 rules are unclear partly because of the 1997 Turgai
# reorganization.
Zone Asia/Qostanay 4:14:28 - LMT 1924 May 2
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
6:00 - +06
a2118 22
# From Phake Nick (2018-10-27):
# 1. According to official announcement from Korean government, the DST end
# date in South Korea should be
# 1955-09-08 without specifying time
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027977557
# 1956-09-29 without specifying time
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027978341
# 1957-09-21 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027979690#3
# 1958-09-20 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027981189
# 1959-09-19 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027982974#2
# 1960-09-17 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0028044104
# ...
# 2.... https://namu.wiki/w/대한민국%20표준시 ... [says]
# when Korea was using GMT+8:30 as standard time, the international
# aviation/marine/meteorological industry in the country refused to
# follow and continued to use GMT+9:00 for interoperability.
d2120 14
a2133 14
Rule ROK 1948 only - Jun 1 0:00 1:00 D
Rule ROK 1948 only - Sep 12 24:00 0 S
Rule ROK 1949 only - Apr 3 0:00 1:00 D
Rule ROK 1949 1951 - Sep Sat>=7 24:00 0 S
Rule ROK 1950 only - Apr 1 0:00 1:00 D
Rule ROK 1951 only - May 6 0:00 1:00 D
Rule ROK 1955 only - May 5 0:00 1:00 D
Rule ROK 1955 only - Sep 8 24:00 0 S
Rule ROK 1956 only - May 20 0:00 1:00 D
Rule ROK 1956 only - Sep 29 24:00 0 S
Rule ROK 1957 1960 - May Sun>=1 0:00 1:00 D
Rule ROK 1957 1960 - Sep Sat>=17 24:00 0 S
Rule ROK 1987 1988 - May Sun>=8 2:00 1:00 D
Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S
a2922 5
# From Paul Eggert (2018-11-18):
# The Spanish initially used American (west-of-Greenwich) time.
# It is unknown what time Manila kept when the British occupied it from
# 1762-10-06 through 1764-04; for now assume it kept American time.
d3008 2
a3009 2
# Also see: Antar EN. Arabian flying is confusing.
# Port Angeles (WA) Evening News. 1965-03-10. page 3.
@
1.1.1.19
log
@Import tzdata2018d from ftp://ftp.iana.org/tz/releases/tzdata2018d.tar.gz
Summary of changes in tzdata2018d (2018-03-22 07:05:46 -0700):
In 2018, Palestine starts DST on March 24 (today!), not March 31
Casey Station in Antarctica changed from +11 to +08 on 2018-03-11
at 04:00.
Various adjustments to some historical conversions (several for
Uruguay (1920 .. 1990), one fpr Enderbury and Kiritimati (1994/5),
one for Portugal and colonies (1912) and Jamaica and Turks & Caicos
(pre 1913)).
@
text
@d72 1
a72 1
Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 -
d75 1
a75 1
Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 -
d78 1
a78 1
Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 -
d113 1
a113 1
Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 -
d139 1
a139 1
Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 -
d226 1
a226 1
Rule Dhaka 2009 only - Jun 19 23:00 1:00 -
a766 1
# See Europe/Lisbon for info about the 1912 transition.
d768 1
a768 1
Zone Asia/Macau 7:34:20 - LMT 1911 Dec 31 16:00u
d1109 47
a1155 47
Rule Iran 1978 1980 - Mar 21 0:00 1:00 -
Rule Iran 1978 only - Oct 21 0:00 0 -
Rule Iran 1979 only - Sep 19 0:00 0 -
Rule Iran 1980 only - Sep 23 0:00 0 -
Rule Iran 1991 only - May 3 0:00 1:00 -
Rule Iran 1992 1995 - Mar 22 0:00 1:00 -
Rule Iran 1991 1995 - Sep 22 0:00 0 -
Rule Iran 1996 only - Mar 21 0:00 1:00 -
Rule Iran 1996 only - Sep 21 0:00 0 -
Rule Iran 1997 1999 - Mar 22 0:00 1:00 -
Rule Iran 1997 1999 - Sep 22 0:00 0 -
Rule Iran 2000 only - Mar 21 0:00 1:00 -
Rule Iran 2000 only - Sep 21 0:00 0 -
Rule Iran 2001 2003 - Mar 22 0:00 1:00 -
Rule Iran 2001 2003 - Sep 22 0:00 0 -
Rule Iran 2004 only - Mar 21 0:00 1:00 -
Rule Iran 2004 only - Sep 21 0:00 0 -
Rule Iran 2005 only - Mar 22 0:00 1:00 -
Rule Iran 2005 only - Sep 22 0:00 0 -
Rule Iran 2008 only - Mar 21 0:00 1:00 -
Rule Iran 2008 only - Sep 21 0:00 0 -
Rule Iran 2009 2011 - Mar 22 0:00 1:00 -
Rule Iran 2009 2011 - Sep 22 0:00 0 -
Rule Iran 2012 only - Mar 21 0:00 1:00 -
Rule Iran 2012 only - Sep 21 0:00 0 -
Rule Iran 2013 2015 - Mar 22 0:00 1:00 -
Rule Iran 2013 2015 - Sep 22 0:00 0 -
Rule Iran 2016 only - Mar 21 0:00 1:00 -
Rule Iran 2016 only - Sep 21 0:00 0 -
Rule Iran 2017 2019 - Mar 22 0:00 1:00 -
Rule Iran 2017 2019 - Sep 22 0:00 0 -
Rule Iran 2020 only - Mar 21 0:00 1:00 -
Rule Iran 2020 only - Sep 21 0:00 0 -
Rule Iran 2021 2023 - Mar 22 0:00 1:00 -
Rule Iran 2021 2023 - Sep 22 0:00 0 -
Rule Iran 2024 only - Mar 21 0:00 1:00 -
Rule Iran 2024 only - Sep 21 0:00 0 -
Rule Iran 2025 2027 - Mar 22 0:00 1:00 -
Rule Iran 2025 2027 - Sep 22 0:00 0 -
Rule Iran 2028 2029 - Mar 21 0:00 1:00 -
Rule Iran 2028 2029 - Sep 21 0:00 0 -
Rule Iran 2030 2031 - Mar 22 0:00 1:00 -
Rule Iran 2030 2031 - Sep 22 0:00 0 -
Rule Iran 2032 2033 - Mar 21 0:00 1:00 -
Rule Iran 2032 2033 - Sep 21 0:00 0 -
Rule Iran 2034 2035 - Mar 22 0:00 1:00 -
Rule Iran 2034 2035 - Sep 22 0:00 0 -
d1162 2
a1163 2
Rule Iran 2036 max - Mar 21 0:00 1:00 -
Rule Iran 2036 max - Sep 21 0:00 0 -
d1199 6
a1204 6
Rule Iraq 1982 only - May 1 0:00 1:00 -
Rule Iraq 1982 1984 - Oct 1 0:00 0 -
Rule Iraq 1983 only - Mar 31 0:00 1:00 -
Rule Iraq 1984 1985 - Apr 1 0:00 1:00 -
Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 -
Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 -
d1208 2
a1209 2
Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 -
Rule Iraq 1991 2007 - Oct 1 3:00s 0 -
d1481 2
a1482 1
# Observatory: 139° 44' 40.90" E (9h 18m 58.727s), 35° 39' 16.0" N.
d1490 1
a1490 1
# which stands for the time on 135° E.
d1493 1
a1493 1
# time", which stands for the time on 120° E.... But "western standard
d1906 1
a1906 1
Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 -
d1908 1
a1908 1
Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 -
d2040 1
a2040 1
Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 -
d2185 1
a2185 1
Rule Mongol 1983 1984 - Apr 1 0:00 1:00 -
d2202 1
a2202 1
Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 -
d2205 1
a2205 1
Rule Mongol 2001 only - Apr lastSat 2:00 1:00 -
d2207 2
a2208 2
Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 -
Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 -
d2642 3
a2660 10
# From Sharef Mustafa (2018-03-16):
# Palestine summer time will start on Mar 24th 2018 by advancing the
# clock by 60 minutes as per Palestinian cabinet decision published on
# the offical website, though the decree did not specify the exact
# time of the time shift.
# http://www.palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e7a42ab7-ee23-435a-b9c8-a4f7e81f3817
#
# From Paul Eggert (2018-03-16):
# For 2016 on, predict spring transitions on March's fourth Saturday at 01:00.
d2690 1
a2690 1
Rule Palestine 2016 max - Mar Sat>=22 1:00 1:00 S
d2740 1
a2740 1
Rule Phil 1936 only - Nov 1 0:00 1:00 -
d2742 1
a2742 1
Rule Phil 1954 only - Apr 12 0:00 1:00 -
d2744 1
a2744 1
Rule Phil 1978 only - Mar 22 0:00 1:00 -
d3100 1
a3100 1
# Phù Liễn Observatory, legally 104° 17' 17" east of Paris.
d3102 1
a3102 1
# the Paris Meridian (2° 20' 14.03" E); the former yields 07:06:30.1333...
@
1.1.1.20
log
@Import tzdata2018e from ftp://ftp.iana.org/tz/releases/tzdata2018e.tar.gz
Summary of changes in tzdata2018e (2018-05-01 23:42:51 -0700):
News for the tz database
Release 2018e - 2018-05-01 23:42:51 -0700
North Korea switches back to +09 on 2018-05-05 (tomorrow!)
@
text
@a1985 13
# From Kang Seonghoon (2018-04-29):
# North Korea will revert its time zone from UTC+8:30 (PYT; Pyongyang
# Time) back to UTC+9 (KST; Korea Standard Time).
#
# From Seo Sanghyeon (2018-04-30):
# Rodong Sinmun 2018-04-30 announced Pyongyang Time transition plan.
# https://www.nknews.org/kcna/wp-content/uploads/sites/5/2018/04/rodong-2018-04-30.pdf
# ... the transition date is 2018-05-05 ... Citation should be Decree
# No. 2232 of April 30, 2018, of the Presidium of the Supreme People's
# Assembly, as published in Rodong Sinmun.
# From Tim Parenti (2018-04-29):
# It appears to be the front page story at the top in the right-most column.
d1997 1
a1997 2
8:30 - KST 2018 May 5
9:00 - KST
d2661 1
a2661 1
# the official website, though the decree did not specify the exact
@
1.1.1.20.2.1
log
@Sync with HEAD
@
text
@a0 2
# tzdb data for Asia and environs
d9 1
a9 1
# From Paul Eggert (2018-06-19):
d38 1
a38 2
# The following alphabetic abbreviations appear in these tables
# (corrections are welcome):
a46 1
# 8:00 PST PDT* Philippine Standard Time
a51 1
# *I invented the abbreviation PDT; see "Philippines" below.
a283 23
# From Paul Eggert (2018-10-02):
# The following comes from Table 1 of:
# Li Yu. Research on the daylight saving movement in 1940s Shanghai.
# Nanjing Journal of Social Sciences. 2014;(2):144-50.
# http://oversea.cnki.net/kns55/detail.aspx?dbname=CJFD2014&filename=NJSH201402020
# The table lists dates only; I am guessing 00:00 and 24:00 transition times.
# Also, the table lists the planned end of DST in 1949, but the corresponding
# zone line cuts this off on May 28, when the Communists took power.
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Shang 1940 only - Jun 1 0:00 1:00 D
Rule Shang 1940 only - Oct 12 24:00 0 S
Rule Shang 1941 only - Mar 15 0:00 1:00 D
Rule Shang 1941 only - Nov 1 24:00 0 S
Rule Shang 1942 only - Jan 31 0:00 1:00 D
Rule Shang 1945 only - Sep 1 24:00 0 S
Rule Shang 1946 only - May 15 0:00 1:00 D
Rule Shang 1946 only - Sep 30 24:00 0 S
Rule Shang 1947 only - Apr 15 0:00 1:00 D
Rule Shang 1947 only - Oct 31 24:00 0 S
Rule Shang 1948 1949 - May 1 0:00 1:00 D
Rule Shang 1948 1949 - Sep 30 24:00 0 S #plan
d310 12
a321 27
# From P Chan (2018-05-07):
# The start and end time of DST in China [from 1986 on] should be 2:00
# (i.e. 2:00 to 3:00 at the start and 2:00 to 1:00 at the end)....
# Government notices about summer time:
#
# 1986-04-12 http://www.zj.gov.cn/attach/zfgb/198608.pdf p.21-22
# (To establish summer time from 1986. On 4 May, set the clocks ahead one hour
# at 2 am. On 14 September, set the clocks backward one hour at 2 am.)
#
# 1987-02-15 http://www.gov.cn/gongbao/shuju/1987/gwyb198703.pdf p.114
# (Summer time in 1987 to start from 12 April until 13 September)
#
# 1987-09-09 http://www.gov.cn/gongbao/shuju/1987/gwyb198721.pdf p.709
# (From 1988, summer time to start from 2 am of the first Sunday of mid-April
# until 2 am of the first Sunday of mid-September)
#
# 1992-03-03 http://www.gov.cn/gongbao/shuju/1992/gwyb199205.pdf p.152
# (To suspend summer time from 1992)
#
# The first page of People's Daily on 12 April 1988 stating that summer time
# to begin on 17 April.
# http://data.people.com.cn/pic/101p/1988/04/1988041201.jpg
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule PRC 1986 only - May 4 2:00 1:00 D
Rule PRC 1986 1991 - Sep Sun>=11 2:00 0 S
Rule PRC 1987 1991 - Apr Sun>=11 2:00 1:00 D
d343 1
a343 1
# Guo Qing-sheng (National Time-Service Center, CAS, Xi'an 710600, China)
d346 1
a346 2
# (Zhongguo ke ji shi liao, 中国科技史料). 2003;24(1):5-9.
# http://oversea.cnki.net/kcms/detail/detail.aspx?filename=ZGKS200301000&dbname=CJFD2003
d523 1
a523 1
8:00 Shang C%sT 1949 May 28
d545 1
a545 71
# From Phake Nick (2018-10-27):
# According to Singaporean newspaper
# http://eresources.nlb.gov.sg/newspapers/Digitised/Article/singfreepresswk19041102-1.2.37
# the day that Hong Kong start using GMT+8 should be Oct 30, 1904.
#
# From Paul Eggert (2018-11-17):
# Hong Kong had a time ball near the Marine Police Station, Tsim Sha Tsui.
# "The ball was raised manually each day and dropped at exactly 1pm
# (except on Sundays and Government holidays)."
# Dyson AD. From Time Ball to Atomic Clock. Hong Kong Government. 1983.
#
# "From 1904 October 30 the time-ball at Hong Kong has been dropped by order
# of the Governor of the Colony at 17h 0m 0s G.M.T., which is 23m 18s.14 in
# advance of 1h 0m 0s of Hong Kong mean time."
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc.
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382
#
# From Joseph Myers (2018-11-18):
# An astronomer before 1925 referring to GMT would have been using the old
# astronomical convention where the day started at noon, not midnight.
#
# From Steve Allen (2018-11-17):
# Meteorological Observations made at the Hongkong Observatory in the year 1904
# page 4
# ... the log of drop times in Table II shows that on Sunday 1904-10-30 the
# ball was dropped. So that looks like a special case drop for the sake
# of broadcasting the new local time.
#
# From Phake Nick (2018-11-18):
# According to The Hong Kong Weekly Press, 1904-10-29, p.324, the
# governor of Hong Kong at the time stated that "We are further desired to
# make it known that the change will be effected by firing the gun and by the
# dropping of the Ball at 23min. 18sec. before one."
# From Paul Eggert (2018-11-18):
# See for this; unfortunately Flash is required.
# From Phake Nick (2018-10-26):
# I went to check microfilm records stored at Hong Kong Public Library....
# on September 30 1941, according to Ta Kung Pao (Hong Kong edition), it was
# stated that fallback would occur on the next day (the 1st)'s "03:00 am (Hong
# Kong Time 04:00 am)" and the clock will fall back for a half hour. (03:00
# probably refer to the time commonly used in mainland China at the time given
# the paper's background) ... the sunrise/sunset time given by South China
# Morning Post for October 1st was indeed moved by half an hour compares to
# before. After that, in December, the battle to capture Hong Kong started and
# the library doesn't seems to have any record stored about press during that
# period of time. Some media resumed publication soon after that within the
# same month, but there were not much information about time there. Later they
# started including a radio program guide when they restored radio service,
# explicitly mentioning it use Tokyo standard time, and later added a note
# saying it's half an hour ahead of the old Hong Kong standard time, and it
# also seems to indicate that Hong Kong was not using GMT+8 when it was
# captured by Japan.
#
# Image of related sections on newspaper:
# * 1941-09-30, Ta Kung Pao (Hong Kong), "Winter Time start tomorrow".
# https://i.imgur.com/6waY51Z.jpg (Chinese)
# * 1941-09-29, South China Morning Post, Information on sunrise/sunset
# time and other things for September 30 and October 1.
# https://i.imgur.com/kCiUR78.jpg
# * 1942-02-05. The Hong Kong News, Radio Program Guide.
# https://i.imgur.com/eVvDMzS.jpg
# * 1941-06-14. Hong Kong Daily Press, Daylight Saving from 3am Tomorrow.
# https://i.imgur.com/05KkvtC.png
# * 1941-09-30, Hong Kong Daily Press, Winter Time Warning.
# https://i.imgur.com/dge4kFJ.png
# Also, the Liberation day of Hong Kong after WWII which British rule
# over the territory resumed was August 30, 1945, which I think should
# be the termination date for the use of JST in the territory....
# From Paul Eggert (2018-11-17):
d547 2
a548 2
# https://www.hko.gov.hk/gts/time/Summertime.htm
# as of 2014-06-19:
d550 1
a550 1
# 1941 15 Jun to 30 Sep
d561 1
a561 1
# 1952 6 Apr to 2 Nov
d590 6
a595 9
# The page does not give times of day for transitions,
# or dates for the 1942 and 1945 transitions.
# The Japanese occupation of Hong Kong began 1941-12-25.
# The Japanese surrender of Hong Kong was signed 1945-09-16; see:
# Heaver S. The days after the Pacific war ended: unsettling times
# in Hong Kong. Post Magazine. 2016-06-13.
# https://www.scmp.com/magazines/post-magazine/article/1852990/days-after-pacific-war-ended-unsettling-times-hong-kong
# For lack of anything better, use start of those days as the
# transition times.
d598 2
d606 1
a606 1
Rule HK 1952 1953 - Nov Sun>=1 3:30 0 -
d608 1
d618 3
a620 5
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30 0:36:42
8:00 - HKT 1941 Jun 15 3:30
8:00 1:00 HKST 1941 Oct 1 4:00
8:30 - HKT 1941 Dec 25
9:00 - JST 1945 Sep 16
d752 18
a769 134
#
# From P Chan (2018-05-10):
# * LegisMac
# http://legismac.safp.gov.mo/legismac/descqry/Descqry.jsf?lang=pt
# A database for searching titles of legal documents of Macau in
# Chinese and Portuguese. The term "HORÁRIO DE VERÃO" can be used for
# searching decrees about summer time.
# * Archives of Macao
# http://www.archives.gov.mo/en/bo/
# It contains images of old official gazettes.
# * The Macao Meteorological and Geophysical Bureau have a page listing the
# summer time history. But it is not complete and has some mistakes.
# http://www.smg.gov.mo/smg/geophysics/e_t_Summer%20Time.htm
# Macau adopted GMT+8 on 30 Oct 1904 to follow Hong Kong. Clocks were
# advanced by 25 minutes and 50 seconds. Which means the LMT used was
# +7:34:10. As stated in the "Portaria No. 204" dated 21 October 1904
# and published in the Official Gazette on 29 October 1904.
# http://igallery.icm.gov.mo/Images/Archives/BO/MO_AH_PUB_BO_1904_10/MO_AH_PUB_BO_1904_10_00025_Grey.JPG
#
# Therefore the 1911 decree of Portugal did not change time in Macau.
#
# From LegisMac, here is a list of decrees that changed the time ...
# [Decree Gazette-no. date; titles omitted in this quotation]
# DIL 732 BOCM 51 1941.12.20
# DIL 764 BOCM 9S 1942.04.30
# DIL 781 BOCM 21 1942.10.10
# PT 3434 BOCM 8S 1943.04.17
# PT 3504 BOCM 20 1943.09.25
# PT 3843 BOCM 39 1945.09.29
# PT 3961 BOCM 17 1946.04.27
# PT 4026 BOCM 39 1946.09.28
# PT 4153 BOCM 16 1947.04.10
# PT 4271 BOCM 48 1947.11.29
# PT 4374 BOCM 18 1948.05.01
# PT 4465 BOCM 44 1948.10.30
# PT 4590 BOCM 14 1949.04.02
# PT 4666 BOCM 44 1949.10.29
# PT 4771 BOCM 12 1950.03.25
# PT 4838 BOCM 43 1950.10.28
# PT 4946 BOCM 12 1951.03.24
# PT 5025 BO 43 1951.10.27
# PT 5149 BO 14 1952.04.05
# PT 5251 BO 43 1952.10.25
# PT 5366 BO 13 1953.03.28
# PT 5444 BO 44 1953.10.31
# PT 5540 BO 12 1954.03.20
# PT 5589 BO 44 1954.10.30
# PT 5676 BO 12 1955.03.19
# PT 5739 BO 45 1955.11.05
# PT 5823 BO 11 1956.03.17
# PT 5891 BO 44 1956.11.03
# PT 5981 BO 12 1957.03.23
# PT 6064 BO 43 1957.10.26
# PT 6172 BO 12 1958.03.22
# PT 6243 BO 43 1958.10.25
# PT 6341 BO 12 1959.03.21
# PT 6411 BO 43 1959.10.24
# PT 6514 BO 11 1960.03.12
# PT 6584 BO 44 1960.10.29
# PT 6721 BO 10 1961.03.11
# PT 6815 BO 43 1961.10.28
# PT 6947 BO 10 1962.03.10
# PT 7080 BO 43 1962.10.27
# PT 7218 BO 12 1963.03.23
# PT 7340 BO 43 1963.10.26
# PT 7491 BO 11 1964.03.14
# PT 7664 BO 43 1964.10.24
# PT 7846 BO 15 1965.04.10
# PT 7979 BO 42 1965.10.16
# PT 8146 BO 15 1966.04.09
# PT 8252 BO 41 1966.10.08
# PT 8429 BO 15 1967.04.15
# PT 8540 BO 41 1967.10.14
# PT 8735 BO 15 1968.04.13
# PT 8860 BO 41 1968.10.12
# PT 9035 BO 16 1969.04.19
# PT 9156 BO 42 1969.10.18
# PT 9328 BO 15 1970.04.11
# PT 9418 BO 41 1970.10.10
# PT 9587 BO 14 1971.04.03
# PT 9702 BO 41 1971.10.09
# PT 38-A/72 BO 14 1972.04.01
# PT 126-A/72 BO 41 1972.10.07
# PT 61/73 BO 14 1973.04.07
# PT 182/73 BO 40 1973.10.06
# PT 282/73 BO 51 1973.12.22
# PT 177/74 BO 41 1974.10.12
# PT 51/75 BO 15 1975.04.12
# PT 173/75 BO 41 1975.10.11
# PT 67/76/M BO 14 1976.04.03
# PT 169/76/M BO 41 1976.10.09
# PT 78/79/M BO 19 1979.05.12
# PT 166/79/M BO 42 1979.10.20
# Note that DIL 732 does not belong to "HORÁRIO DE VERÃO" according to
# LegisMac.... Note that between 1942 and 1945, the time switched
# between GMT+9 and GMT+10. Also in 1965 and 1965 the DST ended at 2:30am.
# From Paul Eggert (2018-05-10):
# The 1904 decree says that Macau changed from the meridian of
# Fortaleza do Monte, presumably the basis for the 7:34:10 for LMT.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Macau 1942 1943 - Apr 30 23:00 1:00 -
Rule Macau 1942 only - Nov 17 23:00 0 -
Rule Macau 1943 only - Sep 30 23:00 0 S
Rule Macau 1946 only - Apr 30 23:00s 1:00 D
Rule Macau 1946 only - Sep 30 23:00s 0 S
Rule Macau 1947 only - Apr 19 23:00s 1:00 D
Rule Macau 1947 only - Nov 30 23:00s 0 S
Rule Macau 1948 only - May 2 23:00s 1:00 D
Rule Macau 1948 only - Oct 31 23:00s 0 S
Rule Macau 1949 1950 - Apr Sat>=1 23:00s 1:00 D
Rule Macau 1949 1950 - Oct lastSat 23:00s 0 S
Rule Macau 1951 only - Mar 31 23:00s 1:00 D
Rule Macau 1951 only - Oct 28 23:00s 0 S
Rule Macau 1952 1953 - Apr Sat>=1 23:00s 1:00 D
Rule Macau 1952 only - Nov 1 23:00s 0 S
Rule Macau 1953 1954 - Oct lastSat 23:00s 0 S
Rule Macau 1954 1956 - Mar Sat>=17 23:00s 1:00 D
Rule Macau 1955 only - Nov 5 23:00s 0 S
Rule Macau 1956 1964 - Nov Sun>=1 03:30 0 S
Rule Macau 1957 1964 - Mar Sun>=18 03:30 1:00 D
Rule Macau 1965 1973 - Apr Sun>=16 03:30 1:00 D
Rule Macau 1965 1966 - Oct Sun>=16 02:30 0 S
Rule Macau 1967 1976 - Oct Sun>=16 03:30 0 S
Rule Macau 1973 only - Dec 30 03:30 1:00 D
Rule Macau 1975 1976 - Apr Sun>=16 03:30 1:00 D
Rule Macau 1979 only - May 13 03:30 1:00 D
Rule Macau 1979 only - Oct Sun>=16 03:30 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Macau 7:34:10 - LMT 1904 Oct 30
8:00 - CST 1941 Dec 21 23:00
9:00 Macau +09/+10 1945 Sep 30 24:00
a899 10
# British astronomer Henry Park Hollis disliked India Standard Time's offset:
# "A new time system has been proposed for India, Further India, and Burmah.
# The scheme suggested is that the times of the meridians 5½ and 6½ hours
# east of Greenwich should be adopted in these territories. No reason is
# given why hourly meridians five hours and six hours east should not be
# chosen; a plan which would bring the time of India into harmony with
# that of almost the whole of the civilised world."
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc.
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382
d1070 1
a1070 1
# From Paul Eggert (2018-11-30):
d1072 4
a1075 57
# I used the following code in GNU Emacs 26.1 to generate the "Rule Iran"
# lines from 2008 through 2087. Emacs 26.1 uses Ed Reingold's
# cal-persia implementation of Birashk's approximation, which in the
# 2008-2087 range disagrees with the the astronomical Persian calendar
# for Persian years 1404 (Gregorian 2025) and 1437 (Gregorian 2058),
# so the following code special-case those years. See Table 15.1, page 264, of:
# Edward M. Reingold and Nachum Dershowitz, Calendrical Calculations:
# The Ultimate Edition, Cambridge University Press (2018).
# https://www.cambridge.org/fr/academic/subjects/computer-science/computing-general-interest/calendrical-calculations-ultimate-edition-4th-edition
# Page 258, footnote 2, of this book says there is some dispute over what will
# happen in 2091 (and some other years after that), so this code
# stops in 2087, as 2088 and 2089 agree with the "max" rule below.
# (cl-loop
# initially (require 'cal-persia)
# with first-persian-year = 1387
# with last-persian-year = 1466
# ;; Exceptional years in the above range,
# ;; from Reingold & Dershowitz Table 15.1, page 264:
# with exceptional-persian-years = '(1404 1437)
# with range-start = nil
# for persian-year from first-persian-year to last-persian-year
# do
# (let*
# ((exceptional-year-offset
# (if (member persian-year exceptional-persian-years) 1 0))
# (beg-dst-absolute
# (+ (calendar-persian-to-absolute (list 1 1 persian-year))
# exceptional-year-offset))
# (end-dst-absolute
# (+ (calendar-persian-to-absolute (list 6 30 persian-year))
# exceptional-year-offset))
# (next-year-beg-dst-absolute
# (+ (calendar-persian-to-absolute (list 1 1 (1+ persian-year)))
# (if (member (1+ persian-year) exceptional-persian-years) 1 0)))
# (beg-dst (calendar-gregorian-from-absolute beg-dst-absolute))
# (end-dst (calendar-gregorian-from-absolute end-dst-absolute))
# (next-year-beg-dst (calendar-gregorian-from-absolute
# next-year-beg-dst-absolute))
# (year (calendar-extract-year beg-dst))
# (range-end (if range-start year "only")))
# (setq range-start (or range-start year))
# (when (or (/= (calendar-extract-day beg-dst)
# (calendar-extract-day next-year-beg-dst))
# (= persian-year last-persian-year))
# (insert
# (format
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t1:00\t-\n"
# range-start range-end
# (calendar-month-name (calendar-extract-month beg-dst) t)
# (calendar-extract-day beg-dst)))
# (insert
# (format
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t0\t-\n"
# range-start range-end
# (calendar-month-name (calendar-extract-month end-dst) t)
# (calendar-extract-day end-dst)))
# (setq range-start nil))))
d1110 51
a1160 103
Rule Iran 1978 1980 - Mar 20 24:00 1:00 -
Rule Iran 1978 only - Oct 20 24:00 0 -
Rule Iran 1979 only - Sep 18 24:00 0 -
Rule Iran 1980 only - Sep 22 24:00 0 -
Rule Iran 1991 only - May 2 24:00 1:00 -
Rule Iran 1992 1995 - Mar 21 24:00 1:00 -
Rule Iran 1991 1995 - Sep 21 24:00 0 -
Rule Iran 1996 only - Mar 20 24:00 1:00 -
Rule Iran 1996 only - Sep 20 24:00 0 -
Rule Iran 1997 1999 - Mar 21 24:00 1:00 -
Rule Iran 1997 1999 - Sep 21 24:00 0 -
Rule Iran 2000 only - Mar 20 24:00 1:00 -
Rule Iran 2000 only - Sep 20 24:00 0 -
Rule Iran 2001 2003 - Mar 21 24:00 1:00 -
Rule Iran 2001 2003 - Sep 21 24:00 0 -
Rule Iran 2004 only - Mar 20 24:00 1:00 -
Rule Iran 2004 only - Sep 20 24:00 0 -
Rule Iran 2005 only - Mar 21 24:00 1:00 -
Rule Iran 2005 only - Sep 21 24:00 0 -
Rule Iran 2008 only - Mar 20 24:00 1:00 -
Rule Iran 2008 only - Sep 20 24:00 0 -
Rule Iran 2009 2011 - Mar 21 24:00 1:00 -
Rule Iran 2009 2011 - Sep 21 24:00 0 -
Rule Iran 2012 only - Mar 20 24:00 1:00 -
Rule Iran 2012 only - Sep 20 24:00 0 -
Rule Iran 2013 2015 - Mar 21 24:00 1:00 -
Rule Iran 2013 2015 - Sep 21 24:00 0 -
Rule Iran 2016 only - Mar 20 24:00 1:00 -
Rule Iran 2016 only - Sep 20 24:00 0 -
Rule Iran 2017 2019 - Mar 21 24:00 1:00 -
Rule Iran 2017 2019 - Sep 21 24:00 0 -
Rule Iran 2020 only - Mar 20 24:00 1:00 -
Rule Iran 2020 only - Sep 20 24:00 0 -
Rule Iran 2021 2023 - Mar 21 24:00 1:00 -
Rule Iran 2021 2023 - Sep 21 24:00 0 -
Rule Iran 2024 only - Mar 20 24:00 1:00 -
Rule Iran 2024 only - Sep 20 24:00 0 -
Rule Iran 2025 2027 - Mar 21 24:00 1:00 -
Rule Iran 2025 2027 - Sep 21 24:00 0 -
Rule Iran 2028 2029 - Mar 20 24:00 1:00 -
Rule Iran 2028 2029 - Sep 20 24:00 0 -
Rule Iran 2030 2031 - Mar 21 24:00 1:00 -
Rule Iran 2030 2031 - Sep 21 24:00 0 -
Rule Iran 2032 2033 - Mar 20 24:00 1:00 -
Rule Iran 2032 2033 - Sep 20 24:00 0 -
Rule Iran 2034 2035 - Mar 21 24:00 1:00 -
Rule Iran 2034 2035 - Sep 21 24:00 0 -
Rule Iran 2036 2037 - Mar 20 24:00 1:00 -
Rule Iran 2036 2037 - Sep 20 24:00 0 -
Rule Iran 2038 2039 - Mar 21 24:00 1:00 -
Rule Iran 2038 2039 - Sep 21 24:00 0 -
Rule Iran 2040 2041 - Mar 20 24:00 1:00 -
Rule Iran 2040 2041 - Sep 20 24:00 0 -
Rule Iran 2042 2043 - Mar 21 24:00 1:00 -
Rule Iran 2042 2043 - Sep 21 24:00 0 -
Rule Iran 2044 2045 - Mar 20 24:00 1:00 -
Rule Iran 2044 2045 - Sep 20 24:00 0 -
Rule Iran 2046 2047 - Mar 21 24:00 1:00 -
Rule Iran 2046 2047 - Sep 21 24:00 0 -
Rule Iran 2048 2049 - Mar 20 24:00 1:00 -
Rule Iran 2048 2049 - Sep 20 24:00 0 -
Rule Iran 2050 2051 - Mar 21 24:00 1:00 -
Rule Iran 2050 2051 - Sep 21 24:00 0 -
Rule Iran 2052 2053 - Mar 20 24:00 1:00 -
Rule Iran 2052 2053 - Sep 20 24:00 0 -
Rule Iran 2054 2055 - Mar 21 24:00 1:00 -
Rule Iran 2054 2055 - Sep 21 24:00 0 -
Rule Iran 2056 2057 - Mar 20 24:00 1:00 -
Rule Iran 2056 2057 - Sep 20 24:00 0 -
Rule Iran 2058 2059 - Mar 21 24:00 1:00 -
Rule Iran 2058 2059 - Sep 21 24:00 0 -
Rule Iran 2060 2062 - Mar 20 24:00 1:00 -
Rule Iran 2060 2062 - Sep 20 24:00 0 -
Rule Iran 2063 only - Mar 21 24:00 1:00 -
Rule Iran 2063 only - Sep 21 24:00 0 -
Rule Iran 2064 2066 - Mar 20 24:00 1:00 -
Rule Iran 2064 2066 - Sep 20 24:00 0 -
Rule Iran 2067 only - Mar 21 24:00 1:00 -
Rule Iran 2067 only - Sep 21 24:00 0 -
Rule Iran 2068 2070 - Mar 20 24:00 1:00 -
Rule Iran 2068 2070 - Sep 20 24:00 0 -
Rule Iran 2071 only - Mar 21 24:00 1:00 -
Rule Iran 2071 only - Sep 21 24:00 0 -
Rule Iran 2072 2074 - Mar 20 24:00 1:00 -
Rule Iran 2072 2074 - Sep 20 24:00 0 -
Rule Iran 2075 only - Mar 21 24:00 1:00 -
Rule Iran 2075 only - Sep 21 24:00 0 -
Rule Iran 2076 2078 - Mar 20 24:00 1:00 -
Rule Iran 2076 2078 - Sep 20 24:00 0 -
Rule Iran 2079 only - Mar 21 24:00 1:00 -
Rule Iran 2079 only - Sep 21 24:00 0 -
Rule Iran 2080 2082 - Mar 20 24:00 1:00 -
Rule Iran 2080 2082 - Sep 20 24:00 0 -
Rule Iran 2083 only - Mar 21 24:00 1:00 -
Rule Iran 2083 only - Sep 21 24:00 0 -
Rule Iran 2084 2086 - Mar 20 24:00 1:00 -
Rule Iran 2084 2086 - Sep 20 24:00 0 -
Rule Iran 2087 only - Mar 21 24:00 1:00 -
Rule Iran 2087 only - Sep 21 24:00 0 -
#
# The following rules are approximations starting in the year 2088.
# These are the best post-2088 approximations available, given the
# restrictions of a single rule using ordinary Gregorian dates.
d1163 2
a1164 2
Rule Iran 2088 max - Mar 20 24:00 1:00 -
Rule Iran 2088 max - Sep 20 24:00 0 -
a1275 18
# From Alois Treindl (2019-03-06):
# http://www.moin.gov.il/Documents/שעון קיץ/clock-50-years-7-2014.pdf
# From Isaac Starkman (2019-03-06):
# Summer time was in that period in 1980 and 1984, see
# https://www.ynet.co.il/articles/0,7340,L-3951073,00.html
# You can of course read it in translation.
# I checked the local newspapers for that years.
# It started on midnight and end at 01.00 am.
# From Paul Eggert (2019-03-06):
# Also see this thread about the moin.gov.il URL:
# https://mm.icann.org/pipermail/tz/2018-November/027194.html
Rule Zion 1980 only - Aug 2 0:00 1:00 D
Rule Zion 1980 only - Sep 13 1:00 0 S
Rule Zion 1984 only - May 5 0:00 1:00 D
Rule Zion 1984 only - Aug 25 1:00 0 S
# From Shanks & Pottenger:
a1473 20
# From Phake Nick (2018-09-27):
# [T]he webpage authored by National Astronomical Observatory of Japan
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EF.html
# ... mentioned that using Showa 23 (year 1948) as example, 13pm of September
# 11 in summer time will equal to 0am of September 12 in standard time.
# It cited a document issued by the Liaison Office which briefly existed
# during the postwar period of Japan, where the detail on implementation
# of the summer time is described in the document.
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EFB2C6BBFEB9EFA4CEBCC2BBDCA4CBA4C4A4A4A4C6.pdf
# The text in the document do instruct a fall back to occur at
# September 11, 13pm in summer time, while ordinary citizens can
# change the clock before they sleep.
#
# From Paul Eggert (2018-09-27):
# This instruction is equivalent to "Sat>=8 25:00", so use that. zic treats
# it like "Sun>=9 01:00", which is not quite the same but is the best we can
# do in any POSIX or C platform. The "25:00" assumes zic from 2007 or later,
# which should be safe now.
d1476 1
a1476 1
Rule Japan 1948 1951 - Sep Sat>=8 25:00 0 S
d1514 1
a1514 3
# Since 1938, all Japanese possessions have been like Asia/Tokyo,
# except that Truk (Chuuk), Ponape (Pohnpei), and Jaluit (Kosrae) did not
# switch from +10 to +09 until 1941-04-01; see the 'australasia' file.
d1804 2
a1805 4
# From Alexander Konzurovski (2018-12-20):
# Qyzyolrda Region (Asia/Qyzylorda) is changing its time zone from
# UTC+6 to UTC+5 effective December 21st, 2018. The legal document is
# located here: http://adilet.zan.kz/rus/docs/P1800000817 (russian language).
d1819 2
d1831 14
a1844 2
6:00 - +06 2018 Dec 21 0:00
5:00 - +05
a1845 13
# Qostanay (aka Kostanay, Kustanay) (KZ-KUS)
# The 1991/2 rules are unclear partly because of the 1997 Turgai
# reorganization.
Zone Asia/Qostanay 4:14:28 - LMT 1924 May 2
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
6:00 - +06
d1858 1
a1858 1
# so include timestamps before 1963.
a1938 22
# From Phake Nick (2018-10-27):
# 1. According to official announcement from Korean government, the DST end
# date in South Korea should be
# 1955-09-08 without specifying time
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027977557
# 1956-09-29 without specifying time
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027978341
# 1957-09-21 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027979690#3
# 1958-09-20 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027981189
# 1959-09-19 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027982974#2
# 1960-09-17 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0028044104
# ...
# 2.... https://namu.wiki/w/대한민국%20표준시 ... [says]
# when Korea was using GMT+8:30 as standard time, the international
# aviation/marine/meteorological industry in the country refused to
# follow and continued to use GMT+9:00 for interoperability.
d1940 14
a1953 14
Rule ROK 1948 only - Jun 1 0:00 1:00 D
Rule ROK 1948 only - Sep 12 24:00 0 S
Rule ROK 1949 only - Apr 3 0:00 1:00 D
Rule ROK 1949 1951 - Sep Sat>=7 24:00 0 S
Rule ROK 1950 only - Apr 1 0:00 1:00 D
Rule ROK 1951 only - May 6 0:00 1:00 D
Rule ROK 1955 only - May 5 0:00 1:00 D
Rule ROK 1955 only - Sep 8 24:00 0 S
Rule ROK 1956 only - May 20 0:00 1:00 D
Rule ROK 1956 only - Sep 29 24:00 0 S
Rule ROK 1957 1960 - May Sun>=1 0:00 1:00 D
Rule ROK 1957 1960 - Sep Sat>=17 24:00 0 S
Rule ROK 1987 1988 - May Sun>=8 2:00 1:00 D
Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S
a1997 4
#
# From Paul Eggert (2018-05-04):
# The BBC reported that the transition was from 23:30 to 24:00 today.
# https://www.bbc.com/news/world-asia-44010705
d2010 1
a2010 1
8:30 - KST 2018 May 4 23:30
d2678 3
a2680 9
# From Even Scharning (2019-03-23):
# DST in Palestine will start on 30 March this year, not 23 March as the time
# zone database predicted.
# https://ramallah.news/post/123610
#
# From Tim Parenti (2019-03-23):
# Combining this with the rules observed since 2016, adjust our spring
# transition guess to Mar Sat>=24.
d2711 1
a2711 1
Rule Palestine 2016 max - Mar Sat>=24 1:00 1:00 S
a2738 5
# From Paul Eggert (2018-11-18):
# The Spanish initially used American (west-of-Greenwich) time.
# It is unknown what time Manila kept when the British occupied it from
# 1762-10-06 through 1764-04; for now assume it kept American time.
d2760 7
a2766 23
# From Paul Goyette (2018-06-15):
# In the Philippines, there is a national law, Republic Act No. 10535
# which declares the official time here as "Philippine Standard Time".
# The act [1] even specifies use of PST as the abbreviation, although
# the FAQ provided by PAGASA [2] uses the "acronym PhST to distinguish
# it from the Pacific Standard Time (PST)."
# [1] http://www.officialgazette.gov.ph/2013/05/15/republic-act-no-10535/
# [2] https://www1.pagasa.dost.gov.ph/index.php/astronomy/philippine-standard-time#republic-act-10535
#
# From Paul Eggert (2018-06-19):
# I surveyed recent news reports, and my impression is that "PST" is
# more popular among reliable English-language news sources. This is
# not just a measure of Google hit counts: it's also the sizes and
# influence of the sources. There is no current abbreviation for DST,
# so use "PDT", the usual American style.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Phil 1936 only - Nov 1 0:00 1:00 D
Rule Phil 1937 only - Feb 1 0:00 0 S
Rule Phil 1954 only - Apr 12 0:00 1:00 D
Rule Phil 1954 only - Jul 1 0:00 0 S
Rule Phil 1978 only - Mar 22 0:00 1:00 D
Rule Phil 1978 only - Sep 21 0:00 0 S
d2770 3
a2772 3
8:00 Phil P%sT 1942 May
9:00 - JST 1944 Nov
8:00 Phil P%sT
d2783 1
a2783 1
# From Paul Eggert (2018-08-29):
d2785 1
a2785 1
# standardized until 1968 or so; we don't know exactly when, and possibly it
a2791 19
# Timekeeping differed depending on who you were and which part of Saudi
# Arabia you were in. In 1969, Elias Antar wrote that although a common
# practice had been to set one's watch to 12:00 (i.e., midnight) at sunset -
# which meant that the time on one side of a mountain could differ greatly from
# the time on the other side - many foreigners set their watches to 6pm
# instead, while airlines instead used UTC +03 (except in Dhahran, where they
# used UTC +04), Aramco used UTC +03 with DST, and the Trans-Arabian Pipe Line
# Company used Aramco time in eastern Saudi Arabia and airline time in western.
# (The American Military Aid Advisory Group used plain UTC.) Antar writes,
# "A man named Higgins, so the story goes, used to run a local power
# station. One day, the whole thing became too much for Higgins and he
# assembled his staff and laid down the law. 'I've had enough of this,' he
# shrieked. 'It is now 12 o'clock Higgins Time, and from now on this station is
# going to run on Higgins Time.' And so, until last year, it did." See:
# Antar E. Dinner at When? Saudi Aramco World, 1969 March/April. 2-3.
# http://archive.aramcoworld.com/issue/196902/dinner.at.when.htm
# Also see: Antar EN. Arabian flying is confusing.
# Port Angeles (WA) Evening News. 1965-03-10. page 3.
#
d2801 1
a2801 2
# the country. Presumably this is documenting airline time. Ignore this,
# as it's before our 1970 cutoff.
a3161 12
# From Paul Eggert (2019-02-19):
#
# The Ho Chi Minh entry suffices for most purposes as it agrees with all of
# Vietnam since 1975-06-13. Presumably clocks often changed in south Vietnam
# in the early 1970s as locations changed hands during the war; however the
# details are unknown and would likely be too voluminous for this database.
#
# For timestamps in north Vietnam back to 1970 (the tzdb cutoff),
# use Asia/Bangkok; see the VN entries in the file zone1970.tab.
# For timestamps before 1970, see Asia/Hanoi in the file 'backzone'.
@
1.1.1.20.2.2
log
@Mostly merge changes from HEAD upto 20200411
@
text
@d11 1
a11 1
# From Paul Eggert (2019-07-11):
d50 1
a50 2
# 8:00 HKT HKST Hong Kong (HKWT* for Winter Time in late 1941)
# 8:00 PST PDT* Philippines
d55 2
a56 1
# *I invented the abbreviations HKWT and PDT; see below.
d87 1
a87 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d120 1
a120 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d146 1
a146 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d234 1
a234 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d244 1
a244 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d255 1
a255 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d261 1
a261 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d276 1
a276 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d564 1
a564 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d655 3
d659 1
a659 43
# From Paul Eggert (2019-07-11):
# "Hong Kong winter time" is considered to be daylight saving.
# "Hong Kong had adopted daylight saving on June 15 as a wartime measure,
# clocks moving forward one hour until October 1, when they would be put back
# by just half an hour for 'Hong Kong Winter time', so that daylight saving
# operated year round." -- Low Z. The longest day: when wartime Hong Kong
# introduced daylight saving. South China Morning Post. 2019-06-28.
# https://www.scmp.com/magazines/post-magazine/short-reads/article/3016281/longest-day-when-wartime-hong-kong-introduced
# From P Chan (2018-12-31):
# * According to the Hong Kong Daylight-Saving Regulations, 1941, the
# 1941 spring-forward transition was at 03:00.
# http://sunzi.lib.hku.hk/hkgro/view/g1941/304271.pdf
# http://sunzi.lib.hku.hk/hkgro/view/g1941/305516.pdf
# * According to some articles from South China Morning Post, +08 was
# resumed on 1945-11-18 at 02:00.
# https://i.imgur.com/M2IsZ3c.png
# https://i.imgur.com/iOPqrVo.png
# https://i.imgur.com/fffcGDs.png
# * Some newspapers ... said the 1946 spring-forward transition was on
# 04-21 at 00:00. The Kung Sheung Evening News 1946-04-20 (Chinese)
# https://i.imgur.com/ZSzent0.png
# https://mmis.hkpl.gov.hk///c/portal/cover?c=QF757YsWv5%2FH7zGe%2FKF%2BFLYsuqGhRBfe p.4
# The Kung Sheung Daily News 1946-04-21 (Chinese)
# https://i.imgur.com/7ecmRlcm.png
# https://mmis.hkpl.gov.hk///c/portal/cover?c=QF757YsWv5%2BQBGt1%2BwUj5qG2GqtwR3Wh p.4
# * According to the Summer Time Ordinance (1946), the fallback
# transitions between 1946 and 1952 were at 03:30 Standard Time (+08)
# http://oelawhk.lib.hku.hk/archive/files/bb74b06a74d5294620a15de560ab33c6.pdf
# * Some other laws and regulations related to DST from 1953 to 1979
# Summer Time Ordinance 1953
# https://i.imgur.com/IOlJMav.jpg
# Summer Time (Amendment) Ordinance 1965
# https://i.imgur.com/8rofeLa.jpg
# Interpretation and General Clauses Ordinance (1966)
# https://i.imgur.com/joy3msj.jpg
# Emergency (Summer Time) Regulation 1973
# Interpretation and General Clauses (Amendment) Ordinance 1977
# https://i.imgur.com/RaNqnc4.jpg
# Resolution of the Legislative Council passed on 9 May 1979
# https://www.legco.gov.hk/yr78-79/english/lc_sitg/hansard/h790509.pdf#page=39
# From Paul Eggert (2019-05-31):
d670 1
a670 1
# 1947 13 Apr to 30 Nov
d707 6
d715 7
a721 6
Rule HK 1946 only - Apr 21 0:00 1:00 S
Rule HK 1946 only - Dec 1 3:30s 0 -
Rule HK 1947 only - Apr 13 3:30s 1:00 S
Rule HK 1947 only - Nov 30 3:30s 0 -
Rule HK 1948 only - May 2 3:30s 1:00 S
Rule HK 1948 1952 - Oct Sun>=28 3:30s 0 -
a722 1
Rule HK 1953 1964 - Oct Sun>=31 3:30 0 -
d724 2
d729 3
a731 3
Rule HK 1979 only - May 13 3:30 1:00 S
Rule HK 1979 only - Oct 21 3:30 0 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d733 1
a733 1
8:00 - HKT 1941 Jun 15 3:00
d735 2
a736 2
8:00 0:30 HKWT 1941 Dec 25
9:00 - JST 1945 Nov 18 2:00
d860 1
a860 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d998 1
a998 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1037 1
a1037 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1086 1
a1086 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1123 1
a1123 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1189 1
a1189 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1241 1
a1241 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1317 3
a1319 3
# 2008-2087 range disagrees with the astronomical Persian calendar
# for Persian years 1404 (Gregorian 2025) and 1437 (Gregorian 2058), so
# the following code special-cases those years. See Table 15.1, page 264, of:
d1513 1
a1513 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1558 1
a1558 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1625 1
a1625 1
# http://www.moin.gov.il/Documents/שעון%20קיץ/clock-50-years-7-2014.pdf
d1763 14
d1778 1
a1778 1
Rule Zion 2005 2012 - Apr Fri<=1 2:00 1:00 D
d1780 1
d1786 1
d1788 1
d1804 1
a1804 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1896 1
a1896 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1999 1
a1999 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2040 2
a2041 2
# -- page 6; available at http://libinfo.org/newsr/newsr2574.djvu via
# http://libinfo.org/index.php?id=58564 -- on 1991-03-31 at 2:00 during
d2057 1
a2057 1
# https://ru.wikipedia.org/wiki/Декретное_время
d2196 1
a2196 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2298 1
a2298 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2413 1
a2413 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2417 1
a2417 1
9:00 ROK K%sT 1954 Mar 21
d2462 1
a2462 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2474 1
a2474 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2488 1
a2488 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2496 1
a2496 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2639 1
a2639 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2657 1
a2657 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2807 1
a2807 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3094 7
a3100 15
# http://pnn.ps/news/401130
# http://palweather.ps/ar/node/50136.html
#
# From Sharif Mustafa (2019-03-26):
# The Palestinian cabinet announced today that the switch to DST will
# be on Fri Mar 29th 2019 by advancing the clock by 60 minutes.
# The decree signing date is Mar 12th but it was not published till today.
# The decree does not specify the exact time of switch.
# http://palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e54e9ea1-50ee-4137-84df-0d6c78da259b
#
# From Even Scharning (2019-04-10):
# Our source in Palestine said it happened Friday 29 at 00:00 local time....
#
# From Paul Eggert (2019-04-10):
# For now, guess spring-ahead transitions are March's last Friday at 00:00.
d3131 1
a3131 1
Rule Palestine 2016 2018 - Mar Sat>=24 1:00 1:00 S
a3132 1
Rule Palestine 2019 max - Mar lastFri 0:00 1:00 S
d3134 1
a3134 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3208 1
a3208 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3216 1
a3216 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3264 1
a3264 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3273 1
a3273 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3337 1
a3337 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3507 1
a3507 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3513 1
a3513 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3521 1
a3521 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3530 1
a3530 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3538 1
a3538 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3545 1
a3545 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3593 1
a3593 1
# To 09:00 on 1945-03-14 at 23:00.
d3611 1
a3611 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
@
1.1.1.21
log
@Import tzdata2018f from ftp://ftp.iana.org/tz/releases/tzdata2018f.tar.gz
Volgograd moves from +03 to +04 on 2018-10-28.
Fiji ends DST 2019-01-13, not 2019-01-20.
Most of Chile changes DST dates, effective 2019-04-06.
Plus corrections to North Korea's 2018-05-05 and China's April 1988
updates (getting the actual time/date of the transition correct)
Corrections for Macau pre 1992, Japan in late 1940's - early 1950's,
and China (Shanghai) 1940's. The Phillipines get their timezone
name abbreviations back.
@
text
@a0 2
# tzdb data for Asia and environs
d9 1
a9 1
# From Paul Eggert (2018-06-19):
d38 1
a38 2
# The following alphabetic abbreviations appear in these tables
# (corrections are welcome):
a46 1
# 8:00 PST PDT* Philippine Standard Time
a51 1
# *I invented the abbreviation PDT; see "Philippines" below.
a283 23
# From Paul Eggert (2018-10-02):
# The following comes from Table 1 of:
# Li Yu. Research on the daylight saving movement in 1940s Shanghai.
# Nanjing Journal of Social Sciences. 2014;(2):144-50.
# http://oversea.cnki.net/kns55/detail.aspx?dbname=CJFD2014&filename=NJSH201402020
# The table lists dates only; I am guessing 00:00 and 24:00 transition times.
# Also, the table lists the planned end of DST in 1949, but the corresponding
# zone line cuts this off on May 28, when the Communists took power.
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Shang 1940 only - Jun 1 0:00 1:00 D
Rule Shang 1940 only - Oct 12 24:00 0 S
Rule Shang 1941 only - Mar 15 0:00 1:00 D
Rule Shang 1941 only - Nov 1 24:00 0 S
Rule Shang 1942 only - Jan 31 0:00 1:00 D
Rule Shang 1945 only - Sep 1 24:00 0 S
Rule Shang 1946 only - May 15 0:00 1:00 D
Rule Shang 1946 only - Sep 30 24:00 0 S
Rule Shang 1947 only - Apr 15 0:00 1:00 D
Rule Shang 1947 only - Oct 31 24:00 0 S
Rule Shang 1948 1949 - May 1 0:00 1:00 D
Rule Shang 1948 1949 - Sep 30 24:00 0 S #plan
d310 12
a321 27
# From P Chan (2018-05-07):
# The start and end time of DST in China [from 1986 on] should be 2:00
# (i.e. 2:00 to 3:00 at the start and 2:00 to 1:00 at the end)....
# Government notices about summer time:
#
# 1986-04-12 http://www.zj.gov.cn/attach/zfgb/198608.pdf p.21-22
# (To establish summer time from 1986. On 4 May, set the clocks ahead one hour
# at 2 am. On 14 September, set the clocks backward one hour at 2 am.)
#
# 1987-02-15 http://www.gov.cn/gongbao/shuju/1987/gwyb198703.pdf p.114
# (Summer time in 1987 to start from 12 April until 13 September)
#
# 1987-09-09 http://www.gov.cn/gongbao/shuju/1987/gwyb198721.pdf p.709
# (From 1988, summer time to start from 2 am of the first Sunday of mid-April
# until 2 am of the first Sunday of mid-September)
#
# 1992-03-03 http://www.gov.cn/gongbao/shuju/1992/gwyb199205.pdf p.152
# (To suspend summer time from 1992)
#
# The first page of People's Daily on 12 April 1988 stating that summer time
# to begin on 17 April.
# http://data.people.com.cn/pic/101p/1988/04/1988041201.jpg
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule PRC 1986 only - May 4 2:00 1:00 D
Rule PRC 1986 1991 - Sep Sun>=11 2:00 0 S
Rule PRC 1987 1991 - Apr Sun>=11 2:00 1:00 D
d343 1
a343 1
# Guo Qing-sheng (National Time-Service Center, CAS, Xi'an 710600, China)
d346 1
a346 2
# (Zhongguo ke ji shi liao, 中国科技史料). 2003;24(1):5-9.
# http://oversea.cnki.net/kcms/detail/detail.aspx?filename=ZGKS200301000&dbname=CJFD2003
d523 1
a523 1
8:00 Shang C%sT 1949 May 28
d752 18
a769 134
#
# From P Chan (2018-05-10):
# * LegisMac
# http://legismac.safp.gov.mo/legismac/descqry/Descqry.jsf?lang=pt
# A database for searching titles of legal documents of Macau in
# Chinese and Portuguese. The term "HORÁRIO DE VERÃO" can be used for
# searching decrees about summer time.
# * Archives of Macao
# http://www.archives.gov.mo/en/bo/
# It contains images of old official gazettes.
# * The Macao Meteorological and Geophysical Bureau have a page listing the
# summer time history. But it is not complete and has some mistakes.
# http://www.smg.gov.mo/smg/geophysics/e_t_Summer%20Time.htm
# Macau adopted GMT+8 on 30 Oct 1904 to follow Hong Kong. Clocks were
# advanced by 25 minutes and 50 seconds. Which means the LMT used was
# +7:34:10. As stated in the "Portaria No. 204" dated 21 October 1904
# and published in the Official Gazette on 29 October 1904.
# http://igallery.icm.gov.mo/Images/Archives/BO/MO_AH_PUB_BO_1904_10/MO_AH_PUB_BO_1904_10_00025_Grey.JPG
#
# Therefore the 1911 decree of Portugal did not change time in Macau.
#
# From LegisMac, here is a list of decrees that changed the time ...
# [Decree Gazette-no. date; titles omitted in this quotation]
# DIL 732 BOCM 51 1941.12.20
# DIL 764 BOCM 9S 1942.04.30
# DIL 781 BOCM 21 1942.10.10
# PT 3434 BOCM 8S 1943.04.17
# PT 3504 BOCM 20 1943.09.25
# PT 3843 BOCM 39 1945.09.29
# PT 3961 BOCM 17 1946.04.27
# PT 4026 BOCM 39 1946.09.28
# PT 4153 BOCM 16 1947.04.10
# PT 4271 BOCM 48 1947.11.29
# PT 4374 BOCM 18 1948.05.01
# PT 4465 BOCM 44 1948.10.30
# PT 4590 BOCM 14 1949.04.02
# PT 4666 BOCM 44 1949.10.29
# PT 4771 BOCM 12 1950.03.25
# PT 4838 BOCM 43 1950.10.28
# PT 4946 BOCM 12 1951.03.24
# PT 5025 BO 43 1951.10.27
# PT 5149 BO 14 1952.04.05
# PT 5251 BO 43 1952.10.25
# PT 5366 BO 13 1953.03.28
# PT 5444 BO 44 1953.10.31
# PT 5540 BO 12 1954.03.20
# PT 5589 BO 44 1954.10.30
# PT 5676 BO 12 1955.03.19
# PT 5739 BO 45 1955.11.05
# PT 5823 BO 11 1956.03.17
# PT 5891 BO 44 1956.11.03
# PT 5981 BO 12 1957.03.23
# PT 6064 BO 43 1957.10.26
# PT 6172 BO 12 1958.03.22
# PT 6243 BO 43 1958.10.25
# PT 6341 BO 12 1959.03.21
# PT 6411 BO 43 1959.10.24
# PT 6514 BO 11 1960.03.12
# PT 6584 BO 44 1960.10.29
# PT 6721 BO 10 1961.03.11
# PT 6815 BO 43 1961.10.28
# PT 6947 BO 10 1962.03.10
# PT 7080 BO 43 1962.10.27
# PT 7218 BO 12 1963.03.23
# PT 7340 BO 43 1963.10.26
# PT 7491 BO 11 1964.03.14
# PT 7664 BO 43 1964.10.24
# PT 7846 BO 15 1965.04.10
# PT 7979 BO 42 1965.10.16
# PT 8146 BO 15 1966.04.09
# PT 8252 BO 41 1966.10.08
# PT 8429 BO 15 1967.04.15
# PT 8540 BO 41 1967.10.14
# PT 8735 BO 15 1968.04.13
# PT 8860 BO 41 1968.10.12
# PT 9035 BO 16 1969.04.19
# PT 9156 BO 42 1969.10.18
# PT 9328 BO 15 1970.04.11
# PT 9418 BO 41 1970.10.10
# PT 9587 BO 14 1971.04.03
# PT 9702 BO 41 1971.10.09
# PT 38-A/72 BO 14 1972.04.01
# PT 126-A/72 BO 41 1972.10.07
# PT 61/73 BO 14 1973.04.07
# PT 182/73 BO 40 1973.10.06
# PT 282/73 BO 51 1973.12.22
# PT 177/74 BO 41 1974.10.12
# PT 51/75 BO 15 1975.04.12
# PT 173/75 BO 41 1975.10.11
# PT 67/76/M BO 14 1976.04.03
# PT 169/76/M BO 41 1976.10.09
# PT 78/79/M BO 19 1979.05.12
# PT 166/79/M BO 42 1979.10.20
# Note that DIL 732 does not belong to "HORÁRIO DE VERÃO" according to
# LegisMac.... Note that between 1942 and 1945, the time switched
# between GMT+9 and GMT+10. Also in 1965 and 1965 the DST ended at 2:30am.
# From Paul Eggert (2018-05-10):
# The 1904 decree says that Macau changed from the meridian of
# Fortaleza do Monte, presumably the basis for the 7:34:10 for LMT.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Macau 1942 1943 - Apr 30 23:00 1:00 -
Rule Macau 1942 only - Nov 17 23:00 0 -
Rule Macau 1943 only - Sep 30 23:00 0 S
Rule Macau 1946 only - Apr 30 23:00s 1:00 D
Rule Macau 1946 only - Sep 30 23:00s 0 S
Rule Macau 1947 only - Apr 19 23:00s 1:00 D
Rule Macau 1947 only - Nov 30 23:00s 0 S
Rule Macau 1948 only - May 2 23:00s 1:00 D
Rule Macau 1948 only - Oct 31 23:00s 0 S
Rule Macau 1949 1950 - Apr Sat>=1 23:00s 1:00 D
Rule Macau 1949 1950 - Oct lastSat 23:00s 0 S
Rule Macau 1951 only - Mar 31 23:00s 1:00 D
Rule Macau 1951 only - Oct 28 23:00s 0 S
Rule Macau 1952 1953 - Apr Sat>=1 23:00s 1:00 D
Rule Macau 1952 only - Nov 1 23:00s 0 S
Rule Macau 1953 1954 - Oct lastSat 23:00s 0 S
Rule Macau 1954 1956 - Mar Sat>=17 23:00s 1:00 D
Rule Macau 1955 only - Nov 5 23:00s 0 S
Rule Macau 1956 1964 - Nov Sun>=1 03:30 0 S
Rule Macau 1957 1964 - Mar Sun>=18 03:30 1:00 D
Rule Macau 1965 1973 - Apr Sun>=16 03:30 1:00 D
Rule Macau 1965 1966 - Oct Sun>=16 02:30 0 S
Rule Macau 1967 1976 - Oct Sun>=16 03:30 0 S
Rule Macau 1973 only - Dec 30 03:30 1:00 D
Rule Macau 1975 1976 - Apr Sun>=16 03:30 1:00 D
Rule Macau 1979 only - May 13 03:30 1:00 D
Rule Macau 1979 only - Oct Sun>=16 03:30 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Macau 7:34:10 - LMT 1904 Oct 30
8:00 - CST 1941 Dec 21 23:00
9:00 Macau +09/+10 1945 Sep 30 24:00
a1473 20
# From Phake Nick (2018-09-27):
# [T]he webpage authored by National Astronomical Observatory of Japan
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EF.html
# ... mentioned that using Showa 23 (year 1948) as example, 13pm of September
# 11 in summer time will equal to 0am of September 12 in standard time.
# It cited a document issued by the Liaison Office which briefly existed
# during the postwar period of Japan, where the detail on implementation
# of the summer time is described in the document.
# https://eco.mtk.nao.ac.jp/koyomi/wiki/BBFEB9EF2FB2C6BBFEB9EFB2C6BBFEB9EFA4CEBCC2BBDCA4CBA4C4A4A4A4C6.pdf
# The text in the document do instruct a fall back to occur at
# September 11, 13pm in summer time, while ordinary citizens can
# change the clock before they sleep.
#
# From Paul Eggert (2018-09-27):
# This instruction is equivalent to "Sat>=8 25:00", so use that. zic treats
# it like "Sun>=9 01:00", which is not quite the same but is the best we can
# do in any POSIX or C platform. The "25:00" assumes zic from 2007 or later,
# which should be safe now.
d1476 1
a1476 1
Rule Japan 1948 1951 - Sep Sat>=8 25:00 0 S
d1858 1
a1858 1
# so include timestamps before 1963.
a1997 4
#
# From Paul Eggert (2018-05-04):
# The BBC reported that the transition was from 23:30 to 24:00 today.
# https://www.bbc.com/news/world-asia-44010705
d2010 1
a2010 1
8:30 - KST 2018 May 4 23:30
d2760 7
a2766 23
# From Paul Goyette (2018-06-15):
# In the Philippines, there is a national law, Republic Act No. 10535
# which declares the official time here as "Philippine Standard Time".
# The act [1] even specifies use of PST as the abbreviation, although
# the FAQ provided by PAGASA [2] uses the "acronym PhST to distinguish
# it from the Pacific Standard Time (PST)."
# [1] http://www.officialgazette.gov.ph/2013/05/15/republic-act-no-10535/
# [2] https://www1.pagasa.dost.gov.ph/index.php/astronomy/philippine-standard-time#republic-act-10535
#
# From Paul Eggert (2018-06-19):
# I surveyed recent news reports, and my impression is that "PST" is
# more popular among reliable English-language news sources. This is
# not just a measure of Google hit counts: it's also the sizes and
# influence of the sources. There is no current abbreviation for DST,
# so use "PDT", the usual American style.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Phil 1936 only - Nov 1 0:00 1:00 D
Rule Phil 1937 only - Feb 1 0:00 0 S
Rule Phil 1954 only - Apr 12 0:00 1:00 D
Rule Phil 1954 only - Jul 1 0:00 0 S
Rule Phil 1978 only - Mar 22 0:00 1:00 D
Rule Phil 1978 only - Sep 21 0:00 0 S
d2770 3
a2772 3
8:00 Phil P%sT 1942 May
9:00 - JST 1944 Nov
8:00 Phil P%sT
d2783 1
a2783 1
# From Paul Eggert (2018-08-29):
d2785 1
a2785 1
# standardized until 1968 or so; we don't know exactly when, and possibly it
a2791 19
# Timekeeping differed depending on who you were and which part of Saudi
# Arabia you were in. In 1969, Elias Antar wrote that although a common
# practice had been to set one's watch to 12:00 (i.e., midnight) at sunset -
# which meant that the time on one side of a mountain could differ greatly from
# the time on the other side - many foreigners set their watches to 6pm
# instead, while airlines instead used UTC +03 (except in Dhahran, where they
# used UTC +04), Aramco used UTC +03 with DST, and the Trans-Arabian Pipe Line
# Company used Aramco time in eastern Saudi Arabia and airline time in western.
# (The American Military Aid Advisory Group used plain UTC.) Antar writes,
# "A man named Higgins, so the story goes, used to run a local power
# station. One day, the whole thing became too much for Higgins and he
# assembled his staff and laid down the law. 'I've had enough of this,' he
# shrieked. 'It is now 12 o'clock Higgins Time, and from now on this station is
# going to run on Higgins Time.' And so, until last year, it did." See:
# Antar E. Dinner at When? Saudi Aramco World, 1969 March/April. 2-3.
# http://archive.aramcoworld.com/issue/196902/dinner.at.when.htm
# newspapers.com says a similar story about Higgins was published in the Port
# Angeles (WA) Evening News, 1965-03-10, page 5, but I lack access to the text.
#
d2801 1
a2801 2
# the country. Presumably this is documenting airline time. Ignore this,
# as it's before our 1970 cutoff.
@
1.1.1.22
log
@Import tzdata2018h from ftp://ftp.iana.org/tz/releases/tzdata2018h.tar.gz
Summary of changes in tzdata2018h (2018-12-23 17:59:32 -0800):
Qyzylorda (aka Kyzylorda) oblast in Kazakhstan moved from +06 to
+05 on 2018-12-21. This is a zone split as Qostanay (aka
Kostanay) did not switch, so create a zone Asia/Qostanay.
Metlakatla, Alaska observes PST this winter only.
Add predictions for Iran from 2038 through 2090.
Changes to some old timestamps for Nauru (1979) Guam (1959-77),
Hong Kong (1904, 1941, 1945, 1952) (others in Pacific during WWII)
@
text
@d589 1
a589 71
# From Phake Nick (2018-10-27):
# According to Singaporean newspaper
# http://eresources.nlb.gov.sg/newspapers/Digitised/Article/singfreepresswk19041102-1.2.37
# the day that Hong Kong start using GMT+8 should be Oct 30, 1904.
#
# From Paul Eggert (2018-11-17):
# Hong Kong had a time ball near the Marine Police Station, Tsim Sha Tsui.
# "The ball was raised manually each day and dropped at exactly 1pm
# (except on Sundays and Government holidays)."
# Dyson AD. From Time Ball to Atomic Clock. Hong Kong Government. 1983.
#
# "From 1904 October 30 the time-ball at Hong Kong has been dropped by order
# of the Governor of the Colony at 17h 0m 0s G.M.T., which is 23m 18s.14 in
# advance of 1h 0m 0s of Hong Kong mean time."
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc.
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382
#
# From Joseph Myers (2018-11-18):
# An astronomer before 1925 referring to GMT would have been using the old
# astronomical convention where the day started at noon, not midnight.
#
# From Steve Allen (2018-11-17):
# Meteorological Observations made at the Hongkong Observatory in the year 1904
# page 4
# ... the log of drop times in Table II shows that on Sunday 1904-10-30 the
# ball was dropped. So that looks like a special case drop for the sake
# of broadcasting the new local time.
#
# From Phake Nick (2018-11-18):
# According to The Hong Kong Weekly Press, 1904-10-29, p.324, the
# governor of Hong Kong at the time stated that "We are further desired to
# make it known that the change will be effected by firing the gun and by the
# dropping of the Ball at 23min. 18sec. before one."
# From Paul Eggert (2018-11-18):
# See for this; unfortunately Flash is required.
# From Phake Nick (2018-10-26):
# I went to check microfilm records stored at Hong Kong Public Library....
# on September 30 1941, according to Ta Kung Pao (Hong Kong edition), it was
# stated that fallback would occur on the next day (the 1st)'s "03:00 am (Hong
# Kong Time 04:00 am)" and the clock will fall back for a half hour. (03:00
# probably refer to the time commonly used in mainland China at the time given
# the paper's background) ... the sunrise/sunset time given by South China
# Morning Post for October 1st was indeed moved by half an hour compares to
# before. After that, in December, the battle to capture Hong Kong started and
# the library doesn't seems to have any record stored about press during that
# period of time. Some media resumed publication soon after that within the
# same month, but there were not much information about time there. Later they
# started including a radio program guide when they restored radio service,
# explicitly mentioning it use Tokyo standard time, and later added a note
# saying it's half an hour ahead of the old Hong Kong standard time, and it
# also seems to indicate that Hong Kong was not using GMT+8 when it was
# captured by Japan.
#
# Image of related sections on newspaper:
# * 1941-09-30, Ta Kung Pao (Hong Kong), "Winter Time start tomorrow".
# https://i.imgur.com/6waY51Z.jpg (Chinese)
# * 1941-09-29, South China Morning Post, Information on sunrise/sunset
# time and other things for September 30 and October 1.
# https://i.imgur.com/kCiUR78.jpg
# * 1942-02-05. The Hong Kong News, Radio Program Guide.
# https://i.imgur.com/eVvDMzS.jpg
# * 1941-06-14. Hong Kong Daily Press, Daylight Saving from 3am Tomorrow.
# https://i.imgur.com/05KkvtC.png
# * 1941-09-30, Hong Kong Daily Press, Winter Time Warning.
# https://i.imgur.com/dge4kFJ.png
# Also, the Liberation day of Hong Kong after WWII which British rule
# over the territory resumed was August 30, 1945, which I think should
# be the termination date for the use of JST in the territory....
# From Paul Eggert (2018-11-17):
d591 2
a592 2
# https://www.hko.gov.hk/gts/time/Summertime.htm
# as of 2014-06-19:
d594 1
a594 1
# 1941 15 Jun to 30 Sep
d605 1
a605 1
# 1952 6 Apr to 2 Nov
d634 6
a639 9
# The page does not give times of day for transitions,
# or dates for the 1942 and 1945 transitions.
# The Japanese occupation of Hong Kong began 1941-12-25.
# The Japanese surrender of Hong Kong was signed 1945-09-16; see:
# Heaver S. The days after the Pacific war ended: unsettling times
# in Hong Kong. Post Magazine. 2016-06-13.
# https://www.scmp.com/magazines/post-magazine/article/1852990/days-after-pacific-war-ended-unsettling-times-hong-kong
# For lack of anything better, use start of those days as the
# transition times.
d642 2
d650 1
a650 1
Rule HK 1952 1953 - Nov Sun>=1 3:30 0 -
d652 1
d662 3
a664 5
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30 0:36:42
8:00 - HKT 1941 Jun 15 3:30
8:00 1:00 HKST 1941 Oct 1 4:00
8:30 - HKT 1941 Dec 25
9:00 - JST 1945 Sep 16
a1059 10
# British astronomer Henry Park Hollis disliked India Standard Time's offset:
# "A new time system has been proposed for India, Further India, and Burmah.
# The scheme suggested is that the times of the meridians 5½ and 6½ hours
# east of Greenwich should be adopted in these territories. No reason is
# given why hourly meridians five hours and six hours east should not be
# chosen; a plan which would bring the time of India into harmony with
# that of almost the whole of the civilised world."
# Hollis HP. Universal Time, Longitudes, and Geodesy. Mon Not R Astron Soc.
# 1905-02-10;65(4):405-6. https://doi.org/10.1093/mnras/65.4.382
d1230 1
a1230 1
# From Paul Eggert (2018-11-30):
d1232 4
a1235 57
# I used the following code in GNU Emacs 26.1 to generate the "Rule Iran"
# lines from 2008 through 2087. Emacs 26.1 uses Ed Reingold's
# cal-persia implementation of Birashk's approximation, which in the
# 2008-2087 range disagrees with the the astronomical Persian calendar
# for Persian years 1404 (Gregorian 2025) and 1437 (Gregorian 2058),
# so the following code special-case those years. See Table 15.1, page 264, of:
# Edward M. Reingold and Nachum Dershowitz, Calendrical Calculations:
# The Ultimate Edition, Cambridge University Press (2018).
# https://www.cambridge.org/fr/academic/subjects/computer-science/computing-general-interest/calendrical-calculations-ultimate-edition-4th-edition
# Page 258, footnote 2, of this book says there is some dispute over what will
# happen in 2091 (and some other years after that), so this code
# stops in 2087, as 2088 and 2089 agree with the "max" rule below.
# (cl-loop
# initially (require 'cal-persia)
# with first-persian-year = 1387
# with last-persian-year = 1466
# ;; Exceptional years in the above range,
# ;; from Reingold & Dershowitz Table 15.1, page 264:
# with exceptional-persian-years = '(1404 1437)
# with range-start = nil
# for persian-year from first-persian-year to last-persian-year
# do
# (let*
# ((exceptional-year-offset
# (if (member persian-year exceptional-persian-years) 1 0))
# (beg-dst-absolute
# (+ (calendar-persian-to-absolute (list 1 1 persian-year))
# exceptional-year-offset))
# (end-dst-absolute
# (+ (calendar-persian-to-absolute (list 6 30 persian-year))
# exceptional-year-offset))
# (next-year-beg-dst-absolute
# (+ (calendar-persian-to-absolute (list 1 1 (1+ persian-year)))
# (if (member (1+ persian-year) exceptional-persian-years) 1 0)))
# (beg-dst (calendar-gregorian-from-absolute beg-dst-absolute))
# (end-dst (calendar-gregorian-from-absolute end-dst-absolute))
# (next-year-beg-dst (calendar-gregorian-from-absolute
# next-year-beg-dst-absolute))
# (year (calendar-extract-year beg-dst))
# (range-end (if range-start year "only")))
# (setq range-start (or range-start year))
# (when (or (/= (calendar-extract-day beg-dst)
# (calendar-extract-day next-year-beg-dst))
# (= persian-year last-persian-year))
# (insert
# (format
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t1:00\t-\n"
# range-start range-end
# (calendar-month-name (calendar-extract-month beg-dst) t)
# (calendar-extract-day beg-dst)))
# (insert
# (format
# "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t0\t-\n"
# range-start range-end
# (calendar-month-name (calendar-extract-month end-dst) t)
# (calendar-extract-day end-dst)))
# (setq range-start nil))))
d1270 51
a1320 103
Rule Iran 1978 1980 - Mar 20 24:00 1:00 -
Rule Iran 1978 only - Oct 20 24:00 0 -
Rule Iran 1979 only - Sep 18 24:00 0 -
Rule Iran 1980 only - Sep 22 24:00 0 -
Rule Iran 1991 only - May 2 24:00 1:00 -
Rule Iran 1992 1995 - Mar 21 24:00 1:00 -
Rule Iran 1991 1995 - Sep 21 24:00 0 -
Rule Iran 1996 only - Mar 20 24:00 1:00 -
Rule Iran 1996 only - Sep 20 24:00 0 -
Rule Iran 1997 1999 - Mar 21 24:00 1:00 -
Rule Iran 1997 1999 - Sep 21 24:00 0 -
Rule Iran 2000 only - Mar 20 24:00 1:00 -
Rule Iran 2000 only - Sep 20 24:00 0 -
Rule Iran 2001 2003 - Mar 21 24:00 1:00 -
Rule Iran 2001 2003 - Sep 21 24:00 0 -
Rule Iran 2004 only - Mar 20 24:00 1:00 -
Rule Iran 2004 only - Sep 20 24:00 0 -
Rule Iran 2005 only - Mar 21 24:00 1:00 -
Rule Iran 2005 only - Sep 21 24:00 0 -
Rule Iran 2008 only - Mar 20 24:00 1:00 -
Rule Iran 2008 only - Sep 20 24:00 0 -
Rule Iran 2009 2011 - Mar 21 24:00 1:00 -
Rule Iran 2009 2011 - Sep 21 24:00 0 -
Rule Iran 2012 only - Mar 20 24:00 1:00 -
Rule Iran 2012 only - Sep 20 24:00 0 -
Rule Iran 2013 2015 - Mar 21 24:00 1:00 -
Rule Iran 2013 2015 - Sep 21 24:00 0 -
Rule Iran 2016 only - Mar 20 24:00 1:00 -
Rule Iran 2016 only - Sep 20 24:00 0 -
Rule Iran 2017 2019 - Mar 21 24:00 1:00 -
Rule Iran 2017 2019 - Sep 21 24:00 0 -
Rule Iran 2020 only - Mar 20 24:00 1:00 -
Rule Iran 2020 only - Sep 20 24:00 0 -
Rule Iran 2021 2023 - Mar 21 24:00 1:00 -
Rule Iran 2021 2023 - Sep 21 24:00 0 -
Rule Iran 2024 only - Mar 20 24:00 1:00 -
Rule Iran 2024 only - Sep 20 24:00 0 -
Rule Iran 2025 2027 - Mar 21 24:00 1:00 -
Rule Iran 2025 2027 - Sep 21 24:00 0 -
Rule Iran 2028 2029 - Mar 20 24:00 1:00 -
Rule Iran 2028 2029 - Sep 20 24:00 0 -
Rule Iran 2030 2031 - Mar 21 24:00 1:00 -
Rule Iran 2030 2031 - Sep 21 24:00 0 -
Rule Iran 2032 2033 - Mar 20 24:00 1:00 -
Rule Iran 2032 2033 - Sep 20 24:00 0 -
Rule Iran 2034 2035 - Mar 21 24:00 1:00 -
Rule Iran 2034 2035 - Sep 21 24:00 0 -
Rule Iran 2036 2037 - Mar 20 24:00 1:00 -
Rule Iran 2036 2037 - Sep 20 24:00 0 -
Rule Iran 2038 2039 - Mar 21 24:00 1:00 -
Rule Iran 2038 2039 - Sep 21 24:00 0 -
Rule Iran 2040 2041 - Mar 20 24:00 1:00 -
Rule Iran 2040 2041 - Sep 20 24:00 0 -
Rule Iran 2042 2043 - Mar 21 24:00 1:00 -
Rule Iran 2042 2043 - Sep 21 24:00 0 -
Rule Iran 2044 2045 - Mar 20 24:00 1:00 -
Rule Iran 2044 2045 - Sep 20 24:00 0 -
Rule Iran 2046 2047 - Mar 21 24:00 1:00 -
Rule Iran 2046 2047 - Sep 21 24:00 0 -
Rule Iran 2048 2049 - Mar 20 24:00 1:00 -
Rule Iran 2048 2049 - Sep 20 24:00 0 -
Rule Iran 2050 2051 - Mar 21 24:00 1:00 -
Rule Iran 2050 2051 - Sep 21 24:00 0 -
Rule Iran 2052 2053 - Mar 20 24:00 1:00 -
Rule Iran 2052 2053 - Sep 20 24:00 0 -
Rule Iran 2054 2055 - Mar 21 24:00 1:00 -
Rule Iran 2054 2055 - Sep 21 24:00 0 -
Rule Iran 2056 2057 - Mar 20 24:00 1:00 -
Rule Iran 2056 2057 - Sep 20 24:00 0 -
Rule Iran 2058 2059 - Mar 21 24:00 1:00 -
Rule Iran 2058 2059 - Sep 21 24:00 0 -
Rule Iran 2060 2062 - Mar 20 24:00 1:00 -
Rule Iran 2060 2062 - Sep 20 24:00 0 -
Rule Iran 2063 only - Mar 21 24:00 1:00 -
Rule Iran 2063 only - Sep 21 24:00 0 -
Rule Iran 2064 2066 - Mar 20 24:00 1:00 -
Rule Iran 2064 2066 - Sep 20 24:00 0 -
Rule Iran 2067 only - Mar 21 24:00 1:00 -
Rule Iran 2067 only - Sep 21 24:00 0 -
Rule Iran 2068 2070 - Mar 20 24:00 1:00 -
Rule Iran 2068 2070 - Sep 20 24:00 0 -
Rule Iran 2071 only - Mar 21 24:00 1:00 -
Rule Iran 2071 only - Sep 21 24:00 0 -
Rule Iran 2072 2074 - Mar 20 24:00 1:00 -
Rule Iran 2072 2074 - Sep 20 24:00 0 -
Rule Iran 2075 only - Mar 21 24:00 1:00 -
Rule Iran 2075 only - Sep 21 24:00 0 -
Rule Iran 2076 2078 - Mar 20 24:00 1:00 -
Rule Iran 2076 2078 - Sep 20 24:00 0 -
Rule Iran 2079 only - Mar 21 24:00 1:00 -
Rule Iran 2079 only - Sep 21 24:00 0 -
Rule Iran 2080 2082 - Mar 20 24:00 1:00 -
Rule Iran 2080 2082 - Sep 20 24:00 0 -
Rule Iran 2083 only - Mar 21 24:00 1:00 -
Rule Iran 2083 only - Sep 21 24:00 0 -
Rule Iran 2084 2086 - Mar 20 24:00 1:00 -
Rule Iran 2084 2086 - Sep 20 24:00 0 -
Rule Iran 2087 only - Mar 21 24:00 1:00 -
Rule Iran 2087 only - Sep 21 24:00 0 -
#
# The following rules are approximations starting in the year 2088.
# These are the best post-2088 approximations available, given the
# restrictions of a single rule using ordinary Gregorian dates.
d1323 2
a1324 2
Rule Iran 2088 max - Mar 20 24:00 1:00 -
Rule Iran 2088 max - Sep 20 24:00 0 -
d1694 1
a1694 3
# Since 1938, all Japanese possessions have been like Asia/Tokyo,
# except that Truk (Chuuk), Ponape (Pohnpei), and Jaluit (Kosrae) did not
# switch from +10 to +09 until 1941-04-01; see the 'australasia' file.
d1984 2
a1985 4
# From Alexander Konzurovski (2018-12-20):
# Qyzyolrda Region (Asia/Qyzylorda) is changing its time zone from
# UTC+6 to UTC+5 effective December 21st, 2018. The legal document is
# located here: http://adilet.zan.kz/rus/docs/P1800000817 (russian language).
d1999 2
d2011 14
a2024 2
6:00 - +06 2018 Dec 21 0:00
5:00 - +05
a2025 13
# Qostanay (aka Kostanay, Kustanay) (KZ-KUS)
# The 1991/2 rules are unclear partly because of the 1997 Turgai
# reorganization.
Zone Asia/Qostanay 4:14:28 - LMT 1924 May 2
4:00 - +04 1930 Jun 21
5:00 - +05 1981 Apr 1
5:00 1:00 +06 1981 Oct 1
6:00 - +06 1982 Apr 1
5:00 RussiaAsia +05/+06 1991 Mar 31 2:00s
4:00 RussiaAsia +04/+05 1992 Jan 19 2:00s
5:00 RussiaAsia +05/+06 2004 Oct 31 2:00s
6:00 - +06
a2118 22
# From Phake Nick (2018-10-27):
# 1. According to official announcement from Korean government, the DST end
# date in South Korea should be
# 1955-09-08 without specifying time
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027977557
# 1956-09-29 without specifying time
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027978341
# 1957-09-21 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027979690#3
# 1958-09-20 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027981189
# 1959-09-19 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0027982974#2
# 1960-09-17 24 o'clock
# http://theme.archives.go.kr/next/common/viewEbook.do?singleData=N&archiveEventId=0028044104
# ...
# 2.... https://namu.wiki/w/대한민국%20표준시 ... [says]
# when Korea was using GMT+8:30 as standard time, the international
# aviation/marine/meteorological industry in the country refused to
# follow and continued to use GMT+9:00 for interoperability.
d2120 14
a2133 14
Rule ROK 1948 only - Jun 1 0:00 1:00 D
Rule ROK 1948 only - Sep 12 24:00 0 S
Rule ROK 1949 only - Apr 3 0:00 1:00 D
Rule ROK 1949 1951 - Sep Sat>=7 24:00 0 S
Rule ROK 1950 only - Apr 1 0:00 1:00 D
Rule ROK 1951 only - May 6 0:00 1:00 D
Rule ROK 1955 only - May 5 0:00 1:00 D
Rule ROK 1955 only - Sep 8 24:00 0 S
Rule ROK 1956 only - May 20 0:00 1:00 D
Rule ROK 1956 only - Sep 29 24:00 0 S
Rule ROK 1957 1960 - May Sun>=1 0:00 1:00 D
Rule ROK 1957 1960 - Sep Sat>=17 24:00 0 S
Rule ROK 1987 1988 - May Sun>=8 2:00 1:00 D
Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S
a2922 5
# From Paul Eggert (2018-11-18):
# The Spanish initially used American (west-of-Greenwich) time.
# It is unknown what time Manila kept when the British occupied it from
# 1762-10-06 through 1764-04; for now assume it kept American time.
d3008 2
a3009 2
# Also see: Antar EN. Arabian flying is confusing.
# Port Angeles (WA) Evening News. 1965-03-10. page 3.
@
1.1.1.23
log
@Import tzdata2019a from ftp://ftp.iana.org/tz/releases/tzdata2019a.tar.gz
Release 20198 - 2019-03-25 22:01:33 -0700
Briefly:
Palestine summer time starts on 2019-03-30 instead of 2019-03-23.
Metlakatla switched back to rejoin Alaska Time on 2019-01-20 at 02:00.
Israel observed summer time in 1980 (08-02/09-13) and 1984 (05-05/08-25).
Etc/UCT is now a backward-compatibility link to Etc/UTC, instead
of being a separate zone that generates the abbreviation "UCT".
@
text
@a1622 18
# From Alois Treindl (2019-03-06):
# http://www.moin.gov.il/Documents/שעון קיץ/clock-50-years-7-2014.pdf
# From Isaac Starkman (2019-03-06):
# Summer time was in that period in 1980 and 1984, see
# https://www.ynet.co.il/articles/0,7340,L-3951073,00.html
# You can of course read it in translation.
# I checked the local newspapers for that years.
# It started on midnight and end at 01.00 am.
# From Paul Eggert (2019-03-06):
# Also see this thread about the moin.gov.il URL:
# https://mm.icann.org/pipermail/tz/2018-November/027194.html
Rule Zion 1980 only - Aug 2 0:00 1:00 D
Rule Zion 1980 only - Sep 13 1:00 0 S
Rule Zion 1984 only - May 5 0:00 1:00 D
Rule Zion 1984 only - Aug 25 1:00 0 S
# From Shanks & Pottenger:
d3074 3
a3076 9
# From Even Scharning (2019-03-23):
# DST in Palestine will start on 30 March this year, not 23 March as the time
# zone database predicted.
# https://ramallah.news/post/123610
#
# From Tim Parenti (2019-03-23):
# Combining this with the rules observed since 2016, adjust our spring
# transition guess to Mar Sat>=24.
d3107 1
a3107 1
Rule Palestine 2016 max - Mar Sat>=24 1:00 1:00 S
a3598 12
# From Paul Eggert (2019-02-19):
#
# The Ho Chi Minh entry suffices for most purposes as it agrees with all of
# Vietnam since 1975-06-13. Presumably clocks often changed in south Vietnam
# in the early 1970s as locations changed hands during the war; however the
# details are unknown and would likely be too voluminous for this database.
#
# For timestamps in north Vietnam back to 1970 (the tzdb cutoff),
# use Asia/Bangkok; see the VN entries in the file zone1970.tab.
# For timestamps before 1970, see Asia/Hanoi in the file 'backzone'.
@
1.1.1.23.2.1
log
@Pull up the following revisions, requested by kre in ticket #468:
external/public-domain/tz/dist/Makefile up to 1.1.1.25
external/public-domain/tz/dist/NEWS up to 1.1.1.28
external/public-domain/tz/dist/TZDATA_VERSION up to 1.18
external/public-domain/tz/dist/africa up to 1.1.1.21
external/public-domain/tz/dist/antarctica up to 1.1.1.12
external/public-domain/tz/dist/asia up to 1.1.1.24
external/public-domain/tz/dist/australasia up to 1.1.1.18
external/public-domain/tz/dist/backzone up to 1.1.1.17
external/public-domain/tz/dist/checktab.awk up to 1.1.1.10
external/public-domain/tz/dist/europe up to 1.1.1.25
external/public-domain/tz/dist/factory up to 1.1.1.4
external/public-domain/tz/dist/leap-seconds.list up to 1.1.1.12
external/public-domain/tz/dist/leapseconds up to 1.1.1.14
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.9
external/public-domain/tz/dist/northamerica up to 1.1.1.24
external/public-domain/tz/dist/pacificnew up to 1.1.1.3
external/public-domain/tz/dist/southamerica up to 1.1.1.16
external/public-domain/tz/dist/systemv up to 1.1.1.3
external/public-domain/tz/dist/theory.html up to 1.1.1.9
external/public-domain/tz/dist/version up to 1.1.1.15
external/public-domain/tz/dist/zishrink.awk up to 1.1.1.6
external/public-domain/tz/dist/zone.tab up to 1.1.1.17
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.19
external/public-domain/tz/dist/zoneinfo2tdf.pl up to 1.1.1.3
doc/3RDPARTY 1.1655 (patch)
Import tzdata2019c from ftp://ftp.iana.org/tz/releases/tzdata2019c.tar.gz
Summary of changes in tzdata2019c (2019-09-11 08:59:48 -0700):
Fiji observes DST from 2019-11-10 to 2020-01-12
Norfolk Island starts observing Australian-style DST
Plus historic corrections to time in Turkey (1940-85)
South Korea (1948-51) Detroit (US) (1967-8), Perry County
(Indiana, US) (pre 1970) Edmonton (CA) (1967, 1969)
Vancouver (CA) (1946), Vienna (AT) (1946), Kaliningrad (1945-6).
Louisville (US) (1946-50). Brussles (BE) (1892).
Hong Kong Winter Time (1941) now listed as being "DST".
Summary of changes in tzdata2019b (2019-07-01 00:09:53 -0700):
Brazil no longer observes DST
Predictions for Morocco extended to 2087.
Panestine (March 2019) time zone change date corrected
(and guesses for future transitions revised).
Historic updates: Honk Kong (1941 - 1947), Italy (1866).
@
text
@d11 1
a11 1
# From Paul Eggert (2019-07-11):
d50 1
a50 2
# 8:00 HKT HKST Hong Kong (HKWT* for Winter Time in late 1941)
# 8:00 PST PDT* Philippines
d55 2
a56 1
# *I invented the abbreviations HKWT and PDT; see below.
d87 1
a87 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d120 1
a120 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d146 1
a146 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d234 1
a234 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d244 1
a244 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d255 1
a255 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d261 1
a261 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d276 1
a276 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d564 1
a564 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d655 3
d659 1
a659 43
# From Paul Eggert (2019-07-11):
# "Hong Kong winter time" is considered to be daylight saving.
# "Hong Kong had adopted daylight saving on June 15 as a wartime measure,
# clocks moving forward one hour until October 1, when they would be put back
# by just half an hour for 'Hong Kong Winter time', so that daylight saving
# operated year round." -- Low Z. The longest day: when wartime Hong Kong
# introduced daylight saving. South China Morning Post. 2019-06-28.
# https://www.scmp.com/magazines/post-magazine/short-reads/article/3016281/longest-day-when-wartime-hong-kong-introduced
# From P Chan (2018-12-31):
# * According to the Hong Kong Daylight-Saving Regulations, 1941, the
# 1941 spring-forward transition was at 03:00.
# http://sunzi.lib.hku.hk/hkgro/view/g1941/304271.pdf
# http://sunzi.lib.hku.hk/hkgro/view/g1941/305516.pdf
# * According to some articles from South China Morning Post, +08 was
# resumed on 1945-11-18 at 02:00.
# https://i.imgur.com/M2IsZ3c.png
# https://i.imgur.com/iOPqrVo.png
# https://i.imgur.com/fffcGDs.png
# * Some newspapers ... said the 1946 spring-forward transition was on
# 04-21 at 00:00. The Kung Sheung Evening News 1946-04-20 (Chinese)
# https://i.imgur.com/ZSzent0.png
# https://mmis.hkpl.gov.hk///c/portal/cover?c=QF757YsWv5%2FH7zGe%2FKF%2BFLYsuqGhRBfe p.4
# The Kung Sheung Daily News 1946-04-21 (Chinese)
# https://i.imgur.com/7ecmRlcm.png
# https://mmis.hkpl.gov.hk///c/portal/cover?c=QF757YsWv5%2BQBGt1%2BwUj5qG2GqtwR3Wh p.4
# * According to the Summer Time Ordinance (1946), the fallback
# transitions between 1946 and 1952 were at 03:30 Standard Time (+08)
# http://oelawhk.lib.hku.hk/archive/files/bb74b06a74d5294620a15de560ab33c6.pdf
# * Some other laws and regulations related to DST from 1953 to 1979
# Summer Time Ordinance 1953
# https://i.imgur.com/IOlJMav.jpg
# Summer Time (Amendment) Ordinance 1965
# https://i.imgur.com/8rofeLa.jpg
# Interpretation and General Clauses Ordinance (1966)
# https://i.imgur.com/joy3msj.jpg
# Emergency (Summer Time) Regulation 1973
# Interpretation and General Clauses (Amendment) Ordinance 1977
# https://i.imgur.com/RaNqnc4.jpg
# Resolution of the Legislative Council passed on 9 May 1979
# https://www.legco.gov.hk/yr78-79/english/lc_sitg/hansard/h790509.pdf#page=39
# From Paul Eggert (2019-05-31):
d670 1
a670 1
# 1947 13 Apr to 30 Nov
d707 6
d715 7
a721 6
Rule HK 1946 only - Apr 21 0:00 1:00 S
Rule HK 1946 only - Dec 1 3:30s 0 -
Rule HK 1947 only - Apr 13 3:30s 1:00 S
Rule HK 1947 only - Nov 30 3:30s 0 -
Rule HK 1948 only - May 2 3:30s 1:00 S
Rule HK 1948 1952 - Oct Sun>=28 3:30s 0 -
a722 1
Rule HK 1953 1964 - Oct Sun>=31 3:30 0 -
d724 2
d729 3
a731 3
Rule HK 1979 only - May 13 3:30 1:00 S
Rule HK 1979 only - Oct 21 3:30 0 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d733 1
a733 1
8:00 - HKT 1941 Jun 15 3:00
d735 2
a736 2
8:00 0:30 HKWT 1941 Dec 25
9:00 - JST 1945 Nov 18 2:00
d860 1
a860 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d998 1
a998 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1037 1
a1037 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1086 1
a1086 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1123 1
a1123 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1189 1
a1189 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1241 1
a1241 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1317 3
a1319 3
# 2008-2087 range disagrees with the astronomical Persian calendar
# for Persian years 1404 (Gregorian 2025) and 1437 (Gregorian 2058), so
# the following code special-cases those years. See Table 15.1, page 264, of:
d1513 1
a1513 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1558 1
a1558 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1625 1
a1625 1
# http://www.moin.gov.il/Documents/שעון%20קיץ/clock-50-years-7-2014.pdf
d1763 14
d1778 1
a1778 1
Rule Zion 2005 2012 - Apr Fri<=1 2:00 1:00 D
d1780 1
d1786 1
d1788 1
d1804 1
a1804 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1896 1
a1896 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1999 1
a1999 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2040 2
a2041 2
# -- page 6; available at http://libinfo.org/newsr/newsr2574.djvu via
# http://libinfo.org/index.php?id=58564 -- on 1991-03-31 at 2:00 during
d2057 1
a2057 1
# https://ru.wikipedia.org/wiki/Декретное_время
d2196 1
a2196 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2298 1
a2298 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2413 1
a2413 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2417 1
a2417 1
9:00 ROK K%sT 1954 Mar 21
d2462 1
a2462 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2474 1
a2474 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2488 1
a2488 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2496 1
a2496 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2639 1
a2639 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2657 1
a2657 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2807 1
a2807 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3094 7
a3100 15
# http://pnn.ps/news/401130
# http://palweather.ps/ar/node/50136.html
#
# From Sharif Mustafa (2019-03-26):
# The Palestinian cabinet announced today that the switch to DST will
# be on Fri Mar 29th 2019 by advancing the clock by 60 minutes.
# The decree signing date is Mar 12th but it was not published till today.
# The decree does not specify the exact time of switch.
# http://palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e54e9ea1-50ee-4137-84df-0d6c78da259b
#
# From Even Scharning (2019-04-10):
# Our source in Palestine said it happened Friday 29 at 00:00 local time....
#
# From Paul Eggert (2019-04-10):
# For now, guess spring-ahead transitions are March's last Friday at 00:00.
d3131 1
a3131 1
Rule Palestine 2016 2018 - Mar Sat>=24 1:00 1:00 S
a3132 1
Rule Palestine 2019 max - Mar lastFri 0:00 1:00 S
d3134 1
a3134 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3208 1
a3208 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3216 1
a3216 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3264 1
a3264 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3273 1
a3273 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3337 1
a3337 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3507 1
a3507 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3513 1
a3513 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3521 1
a3521 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3530 1
a3530 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3538 1
a3538 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3545 1
a3545 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3593 1
a3593 1
# To 09:00 on 1945-03-14 at 23:00.
d3611 1
a3611 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
@
1.1.1.23.2.2
log
@Pull up the following, requested by kre in ticket #942:
external/public-domain/tz/dist/Makefile up to 1.1.1.26
external/public-domain/tz/dist/NEWS up to 1.1.1.29
external/public-domain/tz/dist/TZDATA_VERSION up to 1.19
external/public-domain/tz/dist/africa up to 1.1.1.22
external/public-domain/tz/dist/asia up to 1.1.1.25
external/public-domain/tz/dist/backward up to 1.1.1.11
external/public-domain/tz/dist/backzone up to 1.1.1.18
external/public-domain/tz/dist/europe up to 1.1.1.26
external/public-domain/tz/dist/leap-seconds.list up to 1.1.1.13
external/public-domain/tz/dist/leapseconds up to 1.1.1.15
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.10
external/public-domain/tz/dist/northamerica up to 1.1.1.25
external/public-domain/tz/dist/theory.html up to 1.1.1.10
external/public-domain/tz/dist/version up to 1.1.1.16
external/public-domain/tz/dist/zone.tab up to 1.1.1.18
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.20
doc/3RDPARTY (apply patch)
distrib/sets/lists/base/mi (apply patch)
Import tzdata2020a from ftp://ftp.iana.org/tz/releases/tzdata2020a.tar.gz
Summary of changes in tzdata2020a (2020-04-23 16:03:47 -0700):
Morocco resumes summer time on 2020-05-31, not 2020-05-24.
Canada's Yukon advanced to -07 year-round on 2020-03-08 (summer time
will not end this year)..
America/Nuuk renamed from America/Godthab (both names now exist).
@
text
@a288 21
# From Phake Nick (2020-04-15):
# According to this news report:
# http://news.sina.com.cn/c/2004-09-01/19524201403.shtml
# on April 11, 1919, newspaper in Shanghai said clocks in Shanghai will spring
# forward for an hour starting from midnight of that Saturday. The report did
# not mention what happened in Shanghai thereafter, but it mentioned that a
# similar trial in Tianjin which ended at October 1st as citizens are told to
# recede the clock on September 30 from 12:00pm to 11:00pm. The trial at
# Tianjin got terminated in 1920.
#
# From Paul Eggert (2020-04-15):
# The Returns of Trade and Trade Reports, page 711, says "Daylight saving was
# given a trial during the year, and from the 12th April to the 1st October
# the clocks were all set one hour ahead of sun time. Though the scheme was
# generally esteemed a success, it was announced early in 1920 that it would
# not be repeated."
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Shang 1919 only - Apr 12 24:00 1:00 D
Rule Shang 1919 only - Sep 30 24:00 0 S
a296 83
# From Phake Nick (2020-04-15):
#
# For the history of time in Shanghai between 1940-1942, the situation is
# actually slightly more complex than the table [below].... At the time,
# there were three different authorities in Shanghai, including Shanghai
# International Settlement, a settlement established by western countries with
# its own westernized form of government, Shanghai French Concession, similar
# to the international settlement but is controlled by French, and then the
# rest of the city of Shanghai, which have already been controlled by Japanese
# force through a puppet local government (Wang Jingwei regime). It was
# additionally complicated by the circumstances that, according to the 1940s
# Shanghai summer time essay cited in the database, some
# departments/businesses/people in the Shanghai city itself during that time
# period, refused to change their clock and instead only changed their opening
# hours.
#
# For example, as quoted in the article, in 1940, other than the authority
# itself, power, tram, bus companies, cinema, department stores, and other
# public service organizations have all decided to follow the summer time and
# spring forward the clock. On the other hand, the custom office refused to
# spring forward the clock because of worry on mechanical wear to the physical
# clock, postal office refused to spring forward because of disruption to
# business and log-keeping, although they did changed their office hour to
# match rest of the city. So is travel agents, and also weather
# observatory. It is said both time standards had their own supporters in the
# city at the time, those who prefer new time standard would have moved their
# clock while those who prefer the old time standard would keep their clock
# unchange, and there were different clocks that use different time standard
# in the city at the time for people who use different time standard to adjust
# their clock to their preferred time.
#
# a. For the 1940 May 31 spring forward, the essay claim that it was
# coordinared between the international settlement authority and the French
# concession authority and have gathered support from Hong Kong and Xiamen,
# that it would spring forward an hour from May 31 "midnight", and the essay
# claim "Hong Kong government implemented the spring forward in the same time
# on the same date as Shanghai".
#
# b. For the 1940 fall back, it was said that they initially intended to do
# so on September 30 00:59 at night, however they postponed it to October 12
# after discussion with relevant parties. However schools restored to the
# original schedule ten days earlier.
#
# c. For the 1941 spring forward, it is said to start from March 15
# "following the previous year's method", and in addition to that the essay
# cited an announcement in 1941 from the Wang regime which said the Special
# City of Shanghai under Wang regime control will follow the DST rule set by
# the Settlements, irrespective of the original DST plan announced by the Wang
# regime for other area under its control(April 1 to September 30). (no idea
# to situation before that announcement)
#
# d. For the 1941 fall back, it was said that the fall back would occurs at
# the end of September (A newspaper headline cited by the essay, published on
# October 1, 1941, have the headlines which said "French Concession would
# rewind to the old clock this morning), but it ultimately didn't happen due
# to disagreement between the international settlement authority and the
# French concession authority, and the fall back ultimately occurred on
# November 1.
#
# e. In 1941 December, Japan have officially started war with the United
# States and the United Kingdom, and in Shanghai they have marched into the
# international settlement, taken over its control
#
# f. For the 1942 spring forward, the essay said that the spring forward
# started on January 31. It said this time the custom office and postal
# department will also change their clocks, unlike before.
#
# g. The essay itself didn't cover any specific changes thereafter until the
# end of the war, it quoted a November 1942 command from the government of the
# Wang regime, which claim the daylight saving time applies year round during
# the war. However, the essay ambiguously said the period is "February 1 to
# September 30", which I don't really understand what is the meaning of such
# period in the context of year round implementation here.. More researches
# might be needed to show exactly what happened during that period of time.
# From Phake Nick (2020-04-15):
# According to a Japanese tour bus pamphlet in Nanjing area believed to be
# from around year 1941: http://www.tt-museum.jp/tairiku_0280_nan1941.html ,
# the schedule listed was in the format of Japanese time. Which indicate some
# use of the Japanese time (instead of syncing by DST) might have occurred in
# the Yangtze river delta area during that period of time although the scope
# of such use will need to be investigated to determine.
d575 1
a575 1
# Hong Kong
d585 3
a587 1
# think 3:30 is correct.
d698 1
a698 1
# From Paul Eggert (2020-04-15):
d700 2
a701 2
# https://www.hko.gov.hk/en/gts/time/Summertime.htm
# as of 2020-02-10:
a1830 41
# From Paul Eggert (2020-01-19):
# Starting in the 7th century, Japan generally followed an ancient Chinese
# timekeeping system that divided night and day into six hours each,
# with hour length depending on season. In 1873 the government
# started requiring the use of a Western style 24-hour clock. See:
# Yulia Frumer, "Making Time: Astronomical Time Measurement in Tokugawa Japan"
# . As the tzdb code and
# data support only 24-hour clocks, its tables model timestamps before
# 1873 using Western-style local mean time.
# From Hideyuki Suzuki (1998-11-09):
# 'Tokyo' usually stands for the former location of Tokyo Astronomical
# Observatory: 139° 44' 40.90" E (9h 18m 58.727s), 35° 39' 16.0" N.
# This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996'
# edited by National Astronomical Observatory of Japan....
# JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST).
# The law is enacted on 1886-07-07.
# From Hideyuki Suzuki (1998-11-16):
# The ordinance No. 51 (1886) established "standard time" in Japan,
# which stands for the time on 135° E.
# In the ordinance No. 167 (1895), "standard time" was renamed to "central
# standard time". And the same ordinance also established "western standard
# time", which stands for the time on 120° E.... But "western standard
# time" was abolished in the ordinance No. 529 (1937). In the ordinance No.
# 167, there is no mention regarding for what place western standard time is
# standard....
#
# I wrote "ordinance" above, but I don't know how to translate.
# In Japanese it's "chokurei", which means ordinance from emperor.
# From Yu-Cheng Chuang (2013-07-12):
# ...the Meiji Emperor announced Ordinance No. 167 of Meiji Year 28 "The clause
# about standard time" ... The adoption began from Jan 1, 1896.
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
#
# ...the Showa Emperor announced Ordinance No. 529 of Showa Year 12 ... which
# means the whole Japan territory, including later occupations, adopt Japan
# Central Time (UT+9). The adoption began on Oct 1, 1937.
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
d1879 31
d3089 10
d3101 4
a3104 1
# Palestine summer time will start on Mar 24th 2018 ...
d3114 2
a3119 4
# From Sharef Mustafa (2019-10-18):
# Palestine summer time will end on midnight Oct 26th 2019 ...
# http://www.palestinecabinet.gov.ps/website/ar/ViewDetails?ID=43948
a3122 3
#
# From Tim Parenti (2016-10-19):
# Predict fall transitions on October's last Saturday at 01:00 from now on.
@
1.1.1.23.2.3
log
@Pull up the following, requested by kre in #1108:
external/public-domain/tz/dist/systemv delete
external/public-domain/tz/dist/pacificnew delete
external/public-domain/tz/dist/yearistype.sh delete
external/public-domain/tz/dist/Makefile up to 1.1.1.27
external/public-domain/tz/dist/NEWS up to 1.1.1.30
external/public-domain/tz/dist/README up to 1.1.1.9
external/public-domain/tz/dist/TZDATA_VERSION up to 1.20
external/public-domain/tz/dist/africa up to 1.1.1.23
external/public-domain/tz/dist/antarctica up to 1.1.1.13
external/public-domain/tz/dist/asia up to 1.1.1.26
external/public-domain/tz/dist/australasia up to 1.1.1.19
external/public-domain/tz/dist/backzone up to 1.1.1.19
external/public-domain/tz/dist/europe up to 1.1.1.27
external/public-domain/tz/dist/leap-seconds.list up to 1.1.1.14
external/public-domain/tz/dist/leapseconds up to 1.1.1.16
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.11
external/public-domain/tz/dist/northamerica up to 1.1.1.26
external/public-domain/tz/dist/southamerica up to 1.1.1.17
external/public-domain/tz/dist/theory.html up to 1.1.1.11
external/public-domain/tz/dist/version up to 1.1.1.17
external/public-domain/tz/dist/zishrink.awk up to 1.1.1.7
external/public-domain/tz/dist/zoneinfo2tdf.pl up to 1.1.1.4
external/public-domain/tz/share/zoneinfo/Makefile 1.4
distrib/sets/lists/base/mi 1.1266
doc/3RDPARTY 1.1750 (patch)
Import tzdata2020b:
Revised predictions for Morocco's changes starting in 2023.
Canada's Yukon changes to -07 on 2020-11-01, not 2020-03-08.
Macquarie Island has stayed in sync with Tasmania since 2011.
Casey, Antarctica is at +08 in winter and +11 in summer.
@
text
@d73 1
a73 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d117 1
a117 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d143 1
a143 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d230 1
a230 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d306 1
a306 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d402 1
a402 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d465 1
a465 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d849 1
a849 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d976 1
a976 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1102 1
a1102 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1160 1
a1160 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1537 1
a1537 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1679 1
a1679 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
a1701 4
# For more info about the motivation for DST in Israel, see:
# Barak Y. Israel's Daylight Saving Time controversy. Israel Affairs.
# 2020-08-11. https://doi.org/10.1080/13537121.2020.1806564
d1723 1
a1723 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1815 1
a1815 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1831 1
a1831 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1851 1
a1851 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1874 1
a1874 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1896 1
a1896 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1916 1
a1916 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2016 1
a2016 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2093 1
a2093 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2419 1
a2419 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2475 1
a2475 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2563 1
a2563 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2593 1
a2593 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2738 1
a2738 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2926 1
a2926 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d3228 1
a3228 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d3328 1
a3328 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d3476 1
a3476 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
@
1.1.1.23.2.4
log
@Pull up the following, requested by kre in ticket #1122:
external/public-domain/tz/dist/Makefile up to 1.1.1.29
external/public-domain/tz/dist/NEWS up to 1.1.1.32
external/public-domain/tz/dist/TZDATA_VERSION up to 1.22
external/public-domain/tz/dist/asia up to 1.1.1.27
external/public-domain/tz/dist/europe up to 1.1.1.29
external/public-domain/tz/dist/version up to 1.1.1.19
doc/3RDPARTY (apply patch)
Update tzdata to 2020d
@
text
@d3224 1
d3226 2
a3227 29
# From Steffen Thorsen (2020-10-20):
# Some sources such as these say, and display on clocks, that DST ended at
# midnight last year...
# https://www.amad.ps/ar/post/320006
#
# From Tim Parenti (2020-10-20):
# The report of the Palestinian Cabinet meeting of 2019-10-14 confirms
# a decision on (translated): "The start of the winter time in Palestine, by
# delaying the clock by sixty minutes, starting from midnight on Friday /
# Saturday corresponding to 26/10/2019."
# http://www.palestinecabinet.gov.ps/portal/meeting/details/43948
# From Sharef Mustafa (2020-10-20):
# As per the palestinian cabinet announcement yesterday , the day light saving
# shall [end] on Oct 24th 2020 at 01:00AM by delaying the clock by 60 minutes.
# http://www.palestinecabinet.gov.ps/portal/Meeting/Details/51584
# From Tim Parenti (2020-10-20):
# Predict future fall transitions at 01:00 on the Saturday preceding October's
# last Sunday (i.e., Sat>=24). This is consistent with our predictions since
# 2016, although the time of the change differed slightly in 2019.
# From Pierre Cashon (2020-10-20):
# The summer time this year started on March 28 at 00:00.
# https://wafa.ps/ar_page.aspx?id=GveQNZa872839351758aGveQNZ
# http://www.palestinecabinet.gov.ps/portal/meeting/details/50284
# The winter time in 2015 started on October 23 at 01:00.
# https://wafa.ps/ar_page.aspx?id=CgpCdYa670694628582aCgpCdY
# http://www.palestinecabinet.gov.ps/portal/meeting/details/27583
d3229 2
a3230 3
# From Paul Eggert (2019-04-10):
# For now, guess spring-ahead transitions are at 00:00 on the Saturday
# preceding March's last Sunday (i.e., Sat>=24).
d3246 1
a3246 1
Rule Palestine 2007 only - Sep 13 2:00 0 -
d3249 1
a3249 1
Rule Palestine 2009 only - Sep 4 1:00 0 -
d3258 3
a3260 4
Rule Palestine 2013 only - Sep 27 0:00 0 -
Rule Palestine 2014 only - Oct 24 0:00 0 -
Rule Palestine 2015 only - Mar 28 0:00 1:00 S
Rule Palestine 2015 only - Oct 23 1:00 0 -
d3262 2
a3263 5
Rule Palestine 2016 2018 - Oct Sat>=24 1:00 0 -
Rule Palestine 2019 only - Mar 29 0:00 1:00 S
Rule Palestine 2019 only - Oct Sat>=24 0:00 0 -
Rule Palestine 2020 max - Mar Sat>=24 0:00 1:00 S
Rule Palestine 2020 max - Oct Sat>=24 1:00 0 -
@
1.1.1.23.2.5
log
@Pull up the following, requested by kre in ticket #1243:
external/public-domain/tz/dist/Makefile up to 1.1.1.30
external/public-domain/tz/dist/NEWS up to 1.1.1.34
external/public-domain/tz/dist/TZDATA_VERSION up to 1.24
external/public-domain/tz/dist/africa up to 1.1.1.25
external/public-domain/tz/dist/asia up to 1.1.1.28
external/public-domain/tz/dist/australasia up to 1.1.1.21
external/public-domain/tz/dist/backward up to 1.1.1.12
external/public-domain/tz/dist/backzone up to 1.1.1.20
external/public-domain/tz/dist/etcetera up to 1.1.1.5
external/public-domain/tz/dist/europe up to 1.1.1.30
external/public-domain/tz/dist/leap-seconds.list up to 1.1.1.15
external/public-domain/tz/dist/leapseconds up to 1.1.1.18
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.12
external/public-domain/tz/dist/northamerica up to 1.1.1.27
external/public-domain/tz/dist/theory.html up to 1.1.1.12
external/public-domain/tz/dist/version up to 1.1.1.21
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.6
external/public-domain/tz/dist/zone.tab up to 1.1.1.19
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.21
doc/3RDPARTY apply patch
Import tzdata2020f from ftp://ftp.iana.org/tz/releases/tzdata2020f.tar.gz
Release 2020f - 2020-12-29 00:17:46 -0800
No changes to tzdata, just to a part of the build procedure
not used on NetBSD
Release 2020e - 2020-12-22 15:14:34 -0800
Volgograd switched to Moscow time on 2020-12-27 at 02:00.
Correct many pre-1986 transitions, fixing entries originally
derived from Shanks. The fixes include changes to:
Australia, Bahamas, Bermuda, Belize, Ghana, Israel and Palestine,
Kenya and adjacent, Nigeria and adjacent, Seychelles, Vanuatu
Australia/Currie has been moved to the 'backward' file and its
corrected data moved to the 'backzone' file.
To better match legislation in Turks and Caicos, the 2015 shift to
year-round observance of -04 is now modeled as AST throughout before
returning to Eastern Time with US DST in 2018, rather than as
maintaining EDT until 2015-11-01.
@
text
@d1726 1
a1726 143
# From P Chan (2020-10-27), with corrections:
#
# 1940-1946 Supplement No. 2 to the Palestine Gazette
# # issue page Order No. dated start end note
# 1 1010 729 67 of 1940 1940-05-22 1940-05-31* 1940-09-30* revoked by #2
# 2 1013 758 73 of 1940 1940-05-31 1940-05-31 1940-09-30
# 3 1055 1574 196 of 1940 1940-11-06 1940-11-16 1940-12-31
# 4 1066 1811 208 of 1940 1940-12-17 1940-12-31 1941-12-31
# 5 1156 1967 116 of 1941 1941-12-16 1941-12-31 1942-12-31* amended by #6
# 6 1228 1608 86 of 1942 1942-10-14 1941-12-31 1942-10-31
# 7 1256 279 21 of 1943 1943-03-18 1943-03-31 1943-10-31
# 8 1323 249 19 of 1944 1944-03-13 1944-03-31 1944-10-31
# 9 1402 328 20 of 1945 1945-04-05 1945-04-15 1945-10-31
#10 1487 596 14 of 1946 1946-04-04 1946-04-15 1946-10-31
#
# 1948 Iton Rishmi (Official Gazette of the Provisional Government)
# # issue page dated start end
#11 2 7 1948-05-20 1948-05-22 1948-10-31*
# ^This moved timezone to +04, replaced by #12 from 1948-08-31 24:00 GMT.
#12 17 (Annex B) 84 1948-08-22 1948-08-31 1948-10-31
#
# 1949-2000 Kovetz HaTakanot (Collection of Regulations)
# # issue page dated start end note
#13 6 133 1949-03-23 1949-04-30 1949-10-31
#14 80 755 1950-03-17 1950-04-15 1950-09-14
#15 164 782 1951-03-22 1951-03-31 1951-09-29* amended by #16
#16 206 1940 1951-09-23 ---------- 1951-10-22* amended by #17
#17 212 78 1951-10-19 ---------- 1951-11-10
#18 254 652 1952-03-03 1952-04-19 1952-09-27* amended by #19
#19 300 11 1952-09-15 ---------- 1952-10-18
#20 348 817 1953-03-03 1953-04-11 1953-09-12
#21 420 385 1954-02-17 1954-06-12 1954-09-11
#22 497 548 1955-01-14 1955-06-11 1955-09-10
#23 591 608 1956-03-12 1956-06-02 1956-09-29
#24 680 957 1957-02-08 1957-04-27 1957-09-21
#25 3192 1418 1974-06-28 1974-07-06 1974-10-12
#26 3322 1389 1975-04-03 1975-04-19 1975-08-30
#27 4146 2089 1980-07-15 1980-08-02 1980-09-13
#28 4604 1081 1984-02-22 1984-05-05* 1984-08-25* revoked by #29
#29 4619 1312 1984-04-06 1984-05-05 1984-08-25
#30 4744 475 1984-12-23 1985-04-13 1985-09-14* amended by #31
#31 4851 1848 1985-08-18 ---------- 1985-08-31
#32 4932 899 1986-04-22 1986-05-17 1986-09-06
#33 5013 580 1987-02-15 1987-04-18* 1987-08-22* revoked by #34
#34 5021 744 1987-03-30 1987-04-14 1987-09-12
#35 5096 659 1988-02-14 1988-04-09 1988-09-03
#36 5167 514 1989-02-03 1989-04-29 1989-09-02
#37 5248 375 1990-01-23 1990-03-24 1990-08-25
#38 5335 612 1991-02-10 1991-03-09* 1991-08-31 amended by #39
# 1992-03-28 1992-09-05
#39 5339 709 1991-03-04 1991-03-23 ----------
#40 5506 503 1993-02-18 1993-04-02 1993-09-05
# 1994-04-01 1994-08-28
# 1995-03-31 1995-09-03
#41 5731 438 1996-01-01 1996-03-14 1996-09-15
# 1997-03-13* 1997-09-18* overridden by 1997 Temp Prov
# 1998-03-19* 1998-09-17* revoked by #42
#42 5853 1243 1997-09-18 1998-03-19 1998-09-05
#43 5937 77 1998-10-18 1999-04-02 1999-09-03
# 2000-04-14* 2000-09-15* revoked by #44
# 2001-04-13* 2001-09-14* revoked by #44
#44 6024 39 2000-03-14 2000-04-14 2000-10-22* overridden by 2000 Temp Prov
# 2001-04-06* 2001-10-10* overridden by 2000 Temp Prov
# 2002-03-29* 2002-10-29* overridden by 2000 Temp Prov
#
# These are laws enacted by the Knesset since the Minister could only alter the
# transition dates at least six months in advanced under the 1992 Law.
# dated start end
# 1997 Temporary Provisions 1997-03-06 1997-03-20 1997-09-13
# 2000 Temporary Provisions 2000-07-28 ---------- 2000-10-06
# 2001-04-09 2001-09-24
# 2002-03-29 2002-10-07
# 2003-03-28 2003-10-03
# 2004-04-07 2004-09-22
# Note:
# Transition times in 1940-1957 (#1-#24) were midnight GMT,
# in 1974-1998 (#25-#42 and the 1997 Temporary Provisions) were midnight,
# in 1999-April 2000 (#43,#44) were 02:00,
# in the 2000 Temporary Provisions were 01:00.
#
# -----------------------------------------------------------------------------
# Links:
# 1 https://findit.library.yale.edu/images_layout/view?parentoid=15537490&increment=687
# 2 https://findit.library.yale.edu/images_layout/view?parentoid=15537490&increment=716
# 3 https://findit.library.yale.edu/images_layout/view?parentoid=15537491&increment=721
# 4 https://findit.library.yale.edu/images_layout/view?parentoid=15537491&increment=958
# 5 https://findit.library.yale.edu/images_layout/view?parentoid=15537502&increment=558
# 6 https://findit.library.yale.edu/images_layout/view?parentoid=15537511&increment=105
# 7 https://findit.library.yale.edu/images_layout/view?parentoid=15537516&increment=278
# 8 https://findit.library.yale.edu/images_layout/view?parentoid=15537522&increment=248
# 9 https://findit.library.yale.edu/images_layout/view?parentoid=15537530&increment=329
#10 https://findit.library.yale.edu/images_layout/view?parentoid=15537537&increment=601
#11 https://www.nevo.co.il/law_word/law12/er-002.pdf#page=3
#12 https://www.nevo.co.il/law_word/law12/er-017-t2.pdf#page=4
#13 https://www.nevo.co.il/law_word/law06/tak-0006.pdf#page=3
#14 https://www.nevo.co.il/law_word/law06/tak-0080.pdf#page=7
#15 https://www.nevo.co.il/law_word/law06/tak-0164.pdf#page=10
#16 https://www.nevo.co.il/law_word/law06/tak-0206.pdf#page=4
#17 https://www.nevo.co.il/law_word/law06/tak-0212.pdf#page=2
#18 https://www.nevo.co.il/law_word/law06/tak-0254.pdf#page=4
#19 https://www.nevo.co.il/law_word/law06/tak-0300.pdf#page=5
#20 https://www.nevo.co.il/law_word/law06/tak-0348.pdf#page=3
#21 https://www.nevo.co.il/law_word/law06/tak-0420.pdf#page=5
#22 https://www.nevo.co.il/law_word/law06/tak-0497.pdf#page=10
#23 https://www.nevo.co.il/law_word/law06/tak-0591.pdf#page=6
#24 https://www.nevo.co.il/law_word/law06/tak-0680.pdf#page=3
#25 https://www.nevo.co.il/law_word/law06/tak-3192.pdf#page=2
#26 https://www.nevo.co.il/law_word/law06/tak-3322.pdf#page=5
#27 https://www.nevo.co.il/law_word/law06/tak-4146.pdf#page=2
#28 https://www.nevo.co.il/law_word/law06/tak-4604.pdf#page=7
#29 https://www.nevo.co.il/law_word/law06/tak-4619.pdf#page=2
#30 https://www.nevo.co.il/law_word/law06/tak-4744.pdf#page=11
#31 https://www.nevo.co.il/law_word/law06/tak-4851.pdf#page=2
#32 https://www.nevo.co.il/law_word/law06/tak-4932.pdf#page=19
#33 https://www.nevo.co.il/law_word/law06/tak-5013.pdf#page=8
#34 https://www.nevo.co.il/law_word/law06/tak-5021.pdf#page=8
#35 https://www.nevo.co.il/law_word/law06/tak-5096.pdf#page=3
#36 https://www.nevo.co.il/law_word/law06/tak-5167.pdf#page=2
#37 https://www.nevo.co.il/law_word/law06/tak-5248.pdf#page=7
#38 https://www.nevo.co.il/law_word/law06/tak-5335.pdf#page=6
#39 https://www.nevo.co.il/law_word/law06/tak-5339.pdf#page=7
#40 https://www.nevo.co.il/law_word/law06/tak-5506.pdf#page=19
#41 https://www.nevo.co.il/law_word/law06/tak-5731.pdf#page=2
#42 https://www.nevo.co.il/law_word/law06/tak-5853.pdf#page=3
#43 https://www.nevo.co.il/law_word/law06/tak-5937.pdf#page=9
#44 https://www.nevo.co.il/law_word/law06/tak-6024.pdf#page=4
#
# Time Determination (Temporary Provisions) Law, 1997
# https://www.nevo.co.il/law_html/law19/p201_003.htm
#
# Time Determination (Temporary Provisions) Law, 2000
# https://www.nevo.co.il/law_html/law19/p201_004.htm
#
# Time Determination Law, 1992 and amendments
# https://www.nevo.co.il/law_html/law01/p201_002.htm
# https://main.knesset.gov.il/Activity/Legislation/Laws/Pages/LawPrimary.aspx?lawitemid=2001174
# From Paul Eggert (2020-10-27):
# Several of the midnight transitions mentioned above are ambiguous;
# are they 00:00, 00:00s, 24:00, or 24:00s? When resolving these ambiguities,
# try to minimize changes from previous tzdb versions, for lack of better info.
# Commentary from previous versions is included below, to help explain this.
d1728 32
a1759 30
Rule Zion 1940 only - May 31 24:00u 1:00 D
Rule Zion 1940 only - Sep 30 24:00u 0 S
Rule Zion 1940 only - Nov 16 24:00u 1:00 D
Rule Zion 1942 1946 - Oct 31 24:00u 0 S
Rule Zion 1943 1944 - Mar 31 24:00u 1:00 D
Rule Zion 1945 1946 - Apr 15 24:00u 1:00 D
Rule Zion 1948 only - May 22 24:00u 2:00 DD
Rule Zion 1948 only - Aug 31 24:00u 1:00 D
Rule Zion 1948 1949 - Oct 31 24:00u 0 S
Rule Zion 1949 only - Apr 30 24:00u 1:00 D
Rule Zion 1950 only - Apr 15 24:00u 1:00 D
Rule Zion 1950 only - Sep 14 24:00u 0 S
Rule Zion 1951 only - Mar 31 24:00u 1:00 D
Rule Zion 1951 only - Nov 10 24:00u 0 S
Rule Zion 1952 only - Apr 19 24:00u 1:00 D
Rule Zion 1952 only - Oct 18 24:00u 0 S
Rule Zion 1953 only - Apr 11 24:00u 1:00 D
Rule Zion 1953 only - Sep 12 24:00u 0 S
Rule Zion 1954 only - Jun 12 24:00u 1:00 D
Rule Zion 1954 only - Sep 11 24:00u 0 S
Rule Zion 1955 only - Jun 11 24:00u 1:00 D
Rule Zion 1955 only - Sep 10 24:00u 0 S
Rule Zion 1956 only - Jun 2 24:00u 1:00 D
Rule Zion 1956 only - Sep 29 24:00u 0 S
Rule Zion 1957 only - Apr 27 24:00u 1:00 D
Rule Zion 1957 only - Sep 21 24:00u 0 S
Rule Zion 1974 only - Jul 6 24:00 1:00 D
Rule Zion 1974 only - Oct 12 24:00 0 S
Rule Zion 1975 only - Apr 19 24:00 1:00 D
Rule Zion 1975 only - Aug 30 24:00 0 S
d1772 12
a1783 11
Rule Zion 1980 only - Aug 2 24:00s 1:00 D
Rule Zion 1980 only - Sep 13 24:00s 0 S
Rule Zion 1984 only - May 5 24:00s 1:00 D
Rule Zion 1984 only - Aug 25 24:00s 0 S
Rule Zion 1985 only - Apr 13 24:00 1:00 D
Rule Zion 1985 only - Aug 31 24:00 0 S
Rule Zion 1986 only - May 17 24:00 1:00 D
Rule Zion 1986 only - Sep 6 24:00 0 S
Rule Zion 1987 only - Apr 14 24:00 1:00 D
Rule Zion 1987 only - Sep 12 24:00 0 S
d1789 2
a1790 2
Rule Zion 1988 only - Apr 9 24:00 1:00 D
Rule Zion 1988 only - Sep 3 24:00 0 S
d1820 8
a1827 8
Rule Zion 1989 only - Apr 29 24:00 1:00 D
Rule Zion 1989 only - Sep 2 24:00 0 S
Rule Zion 1990 only - Mar 24 24:00 1:00 D
Rule Zion 1990 only - Aug 25 24:00 0 S
Rule Zion 1991 only - Mar 23 24:00 1:00 D
Rule Zion 1991 only - Aug 31 24:00 0 S
Rule Zion 1992 only - Mar 28 24:00 1:00 D
Rule Zion 1992 only - Sep 5 24:00 0 S
d1856 4
a1859 4
Rule Zion 1996 only - Mar 14 24:00 1:00 D
Rule Zion 1996 only - Sep 15 24:00 0 S
Rule Zion 1997 only - Mar 20 24:00 1:00 D
Rule Zion 1997 only - Sep 13 24:00 0 S
d1911 8
a1918 9
# From Ephraim Silverberg (2020-10-26):
# The current time law (2013) from the State of Israel can be viewed
# (in Hebrew) at:
# ftp://ftp.cs.huji.ac.il/pub/tz/israel/announcements/2013+law.pdf
# It translates to:
# Every year, in the period from the Friday before the last Sunday in
# the month of March at 02:00 a.m. until the last Sunday of the month
# of October at 02:00 a.m., Israel Time will be advanced an additional
# hour such that it will be UTC+3.
@
1.1.1.23.2.6
log
@Pull up the following, requested by kre in ticket #1546:
Catch up to -current of external/public-domain/tz/dist and apply corresponding
patches to distrib/sets/lists/base/mi and doc/3RDPARTY:
external/public-domain/tz/dist/SECURITY up to 1.1.1.1
external/public-domain/tz/dist/CONTRIBUTING up to 1.1.1.7
external/public-domain/tz/dist/Makefile up to 1.1.1.33
external/public-domain/tz/dist/NEWS up to 1.1.1.38
external/public-domain/tz/dist/README up to 1.1.1.10
external/public-domain/tz/dist/TZDATA_VERSION up to 1.30
external/public-domain/tz/dist/africa up to 1.1.1.28
external/public-domain/tz/dist/antarctica up to 1.1.1.15
external/public-domain/tz/dist/asia up to 1.5
external/public-domain/tz/dist/australasia up to 1.5
external/public-domain/tz/dist/backward up to 1.5
external/public-domain/tz/dist/backzone up to 1.1.1.23
external/public-domain/tz/dist/calendars up to 1.1.1.2
external/public-domain/tz/dist/checktab.awk up to 1.1.1.11
external/public-domain/tz/dist/etcetera up to 1.1.1.6
external/public-domain/tz/dist/europe up to 1.1.1.34
external/public-domain/tz/dist/leap-seconds.list up to 1.4
external/public-domain/tz/dist/leapseconds up to 1.4
external/public-domain/tz/dist/northamerica up to 1.1.1.30
external/public-domain/tz/dist/southamerica up to 1.1.1.20
external/public-domain/tz/dist/theory.html up to 1.1.1.15
external/public-domain/tz/dist/version up to 1.5
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.9
external/public-domain/tz/dist/zishrink.awk up to 1.1.1.8
external/public-domain/tz/dist/zone.tab up to 1.1.1.22
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.23
distrib/sets/lists/base/mi (apply patch)
doc/3RDPARTY (apply patch)
Update timezone data to 2022e.
@
text
@d37 3
d156 1
a156 5
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Bahrain 3:22:20 - LMT 1941 Jul 20 # Manamah
3:30 - +0330 1944 Jan 1
4:00 - +04 1972 Jun
3:00 - +03
d284 1
a284 7
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jul 1
7:06:30 - PLMT 1911 May 1
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 2
7:00 - +07
d350 6
a355 3
# a. For the 1940 May 31 spring forward, the essay [says] ... "Hong
# Kong government implemented the spring forward in the same time on
# the same date as Shanghai".
d551 1
a551 1
# Milne gives 8:05:43.2 for Xujiahui Observatory time....
a669 1
#STDOFF 8:05:43.2
d681 1
a681 1
# Milne gives 7:36:41.7.
d865 1
a865 2
#STDOFF 7:36:41.7
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 29 17:00u
d1340 1
a1340 1
# civil time was 7:07:12.5.
a1375 1
#STDOFF 7:07:12.5
d1379 1
a1379 1
7:07:12 - BMT 1923 Dec 31 16:40u # Batavia
a1410 105
# From Roozbeh Pournader (2022-05-30):
# Here's an order from the Cabinet to the rest of the government to switch to
# Tehran time, which is mentioned to be already at +03:30:
# https://qavanin.ir/Law/TreeText/180138
# Just in case that goes away, I also saved a copy at archive.org:
# https://web.archive.org/web/20220530111940/https://qavanin.ir/Law/TreeText/180138
# Here's my translation:
#
# "Circular on Matching the Hours of Governmental and Official Circles
# in Provinces
# Approved 1314/03/22 [=1935-06-13]
# According to the ruling of the Honorable Cabinet, it is ordered that from
# now on in all internal provinces of the country, governmental and official
# circles set their time to match Tehran time (three hours and half before
# Greenwich)....
#
# I still haven't found out when Tehran itself switched to +03:30....
#
# From Paul Eggert (2022-06-05):
# Although the above says Tehran was at +03:30 before 1935-06-13, we don't
# know when it switched to +03:30. For now, use 1935-06-13 as the switch date.
# Although most likely wrong, we have no better info.
# From Roozbeh Pournader (2022-06-01):
# This is from Kayhan newspaper, one of the major Iranian newspapers, from
# March 20, 1978, page 2:
#
# "Pull the clocks 60 minutes forward
# As we informed before, from the fourth day of the month Farvardin of the
# new year [=1978-03-24], clocks will be pulled forward, and people's daily
# work and life program will start one hour earlier than the current program.
# On the 1st day of the month Farvardin of this year [=1977-03-21], they had
# pulled the clocks forward by one hour, but in the month of Mehr
# [=1977-09-23], the clocks were pulled back by 30 minutes.
# In this way, from the 4th day of the month Farvardin, clocks will be ahead
# of the previous years by one hour and a half.
# According to the new program, during the night of 4th of Farvardin, when
# the midnight, meaning 24 o'clock is announced, the hands of the clock must
# be pulled forward by one hour and thus consider midnight 1 o'clock in the
# forenoon."
#
# This implies that in September 1977, when the daylight savings time was
# done with, Iran didn't go back to +03:30, but immediately to +04:00.
#
#
# This is from the major Iranian newspaper Ettela'at, dated [1978-08-03]...,
# page 32. It looks like they decided to get the clocks back to +4:00
# just in time for Ramadan that year:
#
# "Tomorrow Night, Pull the Clocks Back by One Hour
# At 1 o'clock in the forenoon of Saturday 14 Mordad [=1978-08-05], the
# clocks will be pulled one hour back and instead of 1 o'clock in the
# forenoon, Radio Iran will announce 24 o'clock.
# This decision was made in the Cabinet of Ministers meeting of 25 Tir
# [=1978-07-16], [...]
# At the beginning of the year 2537 [=March 1978: Iran was using a different
# year number for a few years then, based on the Coronation of Cyrus the
# Great], the country's official time was pulled forward by one hour and now
# the official time is one hour and a half ahead compared to last year,
# because in Farvardin of last year [=March 1977], the official time was
# pulled forward one hour and this continued until the second half of last
# year [=September 1977] until in the second half of last year the official
# time was pulled back half an hour and that half hour still remains."
#
# This matches the time of the true noon published in the newspapers, as they
# clearly go from +05:00 to +04:00 after that date (which happened during a
# long weekend in Iran).
# From Roozbeh Pournader (2022-05-31):
# [Movahedi S. Cultural preconceptions of time: Can we use operational time
# to meddle in God's Time? Comp Stud Soc Hist. 1985;27(3):385-400]
# https://www.jstor.org/stable/178704
# Here's the quotes from the paper:
# 1. '"Iran's official time keeper moved the clock one hour forward as from
# March 22, 1977 (Farvardin 2, 2536) to make maximum use of daylight and save
# in energy consumption. Thus Iran joined such other countries as Britain in
# observing what is known as 'daylight saving.' The proposal was originally
# put forward by the Ministry of Energy, in no way having any influence on
# observing religious ceremonies. Moving time one hour forward in summer
# means that at 11:00 o'clock on March 21, the official time was set as
# midnight March 22. Then September 24 will actually begin one hour later
# than the end of September 23 [...]." Iran's time base thus continued to be
# Greenwich Mean Time plus three and one-half hours (plus four and one-half
# hours in summer).'
#
# The article sources this from Iran Almanac and Book of Facts, 1977, Tehran:
# Echo of Iran, which is on Google Books at
# https://www.google.com/books/edition/Iran_Almanac_and_Book_of_Facts/9ybVAAAAMAAJ.
# (I confirmed it by searching for snippets.)
#
# 2. "After the fall of the shah, the revolutionary government returned to
# daylight-saving time (DST) on 26 May 1979."
#
# This seems to have been announced just one day in advance, on 25 May 1979.
#
# The change in 1977 clearly seems to be the first daylight savings effort in
# Iran. But the article doesn't mention what happened in 1978 (which was
# still during the shah's government), or how things continued in 1979
# onwards (which was during the Islamic Republic).
# From Francis Santoni (2022-06-01):
# for Iran and 1977 the effective change is only 20 october
# (UIT No. 143 17.XI.1977) and not 23 september (UIT No. 141 13.IX.1977).
# UIT is the Operational Bulletin of International Telecommunication Union.
d1445 59
a1503 6
# From Paul Eggert (2022-06-30):
# Go with Pournader for 1935 through spring 1979, and for timestamps
# after August 1991; go with with Shanks & Pottenger for other timestamps.
# Go with Santoni's citation of the UIT for fall 1977, as 20 October 1977
# is 28 Mehr 1356, consistent with the "Mehr" in Pournader's source.
# Assume that the UIT's "1930" is UTC, i.e., 24:00 local time.
a1536 6
# From Ali Mirjamali (2022-05-10):
# Official IR News Agency announcement: irna.ir/xjJ3TT
# ...
# Highlights: DST will be cancelled for the next Iranian year 1402
# (i.e 2023-March-21) and forthcoming years.
#
d1538 2
a1539 8
# Work around a bug in zic 2022a and earlier.
Rule Iran 1910 only - Jan 1 00:00 0 -
#
Rule Iran 1977 only - Mar 21 23:00 1:00 -
Rule Iran 1977 only - Oct 20 24:00 0 -
Rule Iran 1978 only - Mar 24 24:00 1:00 -
Rule Iran 1978 only - Aug 5 01:00 0 -
Rule Iran 1979 only - May 26 24:00 1:00 -
a1540 1
Rule Iran 1980 only - Mar 20 24:00 1:00 -
d1571 74
a1644 2
Rule Iran 2021 2022 - Mar 21 24:00 1:00 -
Rule Iran 2021 2022 - Sep 21 24:00 0 -
d1648 2
a1649 2
3:25:44 - TMT 1935 Jun 13 # Tehran Mean Time
3:30 Iran +0330/+0430 1977 Oct 20 24:00
a2236 8
# From Steffen Thorsen (2021-09-24):
# The Jordanian Government announced yesterday that they will start DST
# in February instead of March:
# https://petra.gov.jo/Include/InnerPage.jsp?ID=37683&lang=en&name=en_news (English)
# https://petra.gov.jo/Include/InnerPage.jsp?ID=189969&lang=ar&name=news (Arabic)
# From the Arabic version, it seems to say it would be at midnight
# (assume 24:00) on the last Thursday in February, starting from 2022.
d2267 1
a2267 1
Rule Jordan 2014 2021 - Mar lastThu 24:00 1:00 S
a2268 1
Rule Jordan 2022 max - Feb lastThu 24:00 1:00 S
d2462 3
a2464 3
# (Asia/Qyzylorda) is changing its time zone from UTC+6 to UTC+5
# effective December 21st, 2018....
# http://adilet.zan.kz/rus/docs/P1800000817 (russian language).
d2700 1
a2700 3
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Kuwait 3:11:56 - LMT 1950
3:00 - +03
d2703 1
a2703 9
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Vientiane 6:50:24 - LMT 1906 Jul 1
7:06:30 - PLMT 1911 May 1
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 2
7:00 - +07 1947 Apr 1
8:00 - +08 1955 Apr 15
7:00 - +07
d2741 3
a2743 1
# Peninsular Malaysia
a2753 2
#
d2933 1
a2933 3
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Muscat 3:54:24 - LMT 1920
4:00 - +04
d3382 5
a3398 15
# From P Chan (2021-10-18):
# http://wafa.ps/Pages/Details/34701
# Palestine winter time will start from midnight 2021-10-29 (Thursday-Friday).
#
# From Heba Hemad, Palestine Ministry of Telecom & IT (2021-10-20):
# ... winter time will begin in Palestine from Friday 10-29, 01:00 AM
# by 60 minutes backwards.
#
# From Tim Parenti (2021-10-25), per Paul Eggert (2021-10-24):
# Guess future fall transitions at 01:00 on the Friday preceding October's
# last Sunday (i.e., Fri>=23), as this is more consistent with recent practice.
# From Heba Hamad (2022-03-10):
# summer time will begin in Palestine from Sunday 03-27-2022, 00:00 AM.
d3433 2
a3434 4
Rule Palestine 2020 2021 - Mar Sat>=24 0:00 1:00 S
Rule Palestine 2020 only - Oct 24 1:00 0 -
Rule Palestine 2021 max - Oct Fri>=23 1:00 0 -
Rule Palestine 2022 max - Mar Sun>=25 0:00 1:00 S
a3502 6
# From P Chan (2021-05-10):
# Here's a fairly comprehensive article in Japanese:
# https://wiki.suikawiki.org/n/Philippine%20Time
# From Paul Eggert (2021-05-10):
# The info in the Japanese table has not been absorbed (yet) below.
d3522 1
d3569 2
d3574 1
a3574 1
# https://web.archive.org/web/20190822231045/http://www.math.nus.edu.sg/~mathelmr/teaching/timezone.html
d3819 1
a3819 1
5:00 1:00 +06 1991 Sep 9 2:00s
d3827 2
d3843 1
d3855 1
a3855 2
# Milne says Tashkent was 4:37:10.8.
#STDOFF 4:37:10.8
d3874 1
a3874 1
# From Paul Eggert (2022-07-27) after a 2014 heads-up from Trần Ngọc Quân:
d3886 2
a3887 2
# the Paris Meridian; for now guess the former and round the exact
# 07:06:30.1333... to 07:06:30.13 as the legal spec used 66 2/3 ms precision.
d3914 1
a3914 2
#STDOFF 7:06:30.13
Zone Asia/Ho_Chi_Minh 7:06:30 - LMT 1906 Jul 1
d3938 1
a3938 4
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Aden 2:59:54 - LMT 1950
3:00 - +03
@
1.1.1.23.2.7
log
@Pull up the following, requested by kre in ticket #1782:
external/public-domain/tz/dist/checknow.awk up to 1.1.1.1
external/public-domain/tz/dist/zonenow.tab up to 1.1.1.1
external/public-domain/tz/dist/CONTRIBUTING up to 1.1.1.8
external/public-domain/tz/dist/Makefile up to 1.1.1.37
external/public-domain/tz/dist/NEWS up to 1.1.1.44
external/public-domain/tz/dist/README up to 1.1.1.11
external/public-domain/tz/dist/TZDATA_VERSION up to 1.36
external/public-domain/tz/dist/africa up to 1.1.1.32
external/public-domain/tz/dist/antarctica up to 1.1.1.18
external/public-domain/tz/dist/asia up to 1.11
external/public-domain/tz/dist/australasia up to 1.8
external/public-domain/tz/dist/backward up to 1.11
external/public-domain/tz/dist/backzone up to 1.1.1.27
external/public-domain/tz/dist/checklinks.awk up to 1.1.1.4
external/public-domain/tz/dist/checktab.awk up to 1.1.1.13
external/public-domain/tz/dist/etcetera up to 1.1.1.7
external/public-domain/tz/dist/europe up to 1.1.1.38
external/public-domain/tz/dist/iso3166.tab up to 1.1.1.9
external/public-domain/tz/dist/leap-seconds.list up to 1.6
external/public-domain/tz/dist/leapseconds up to 1.6
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.13
external/public-domain/tz/dist/northamerica up to 1.1.1.34
external/public-domain/tz/dist/southamerica up to 1.1.1.24
external/public-domain/tz/dist/theory.html up to 1.1.1.18
external/public-domain/tz/dist/version up to 1.11
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.10
external/public-domain/tz/dist/zone.tab up to 1.1.1.26
external/public-domain/tz/dist/zone1970.tab up to 1.1.1.27
distrib/sets/lists/base/mi (apply patch)
doc/3RDPARTY (apply patch)
Update tzdata to 2023d.
@
text
@d267 1
a267 1
# Myanmar (Burma)
d293 1
d683 1
d1186 4
d1519 2
a1520 2
# for Iran and 1977 the effective change is only 20 October
# (UIT No. 143 17.XI.1977) and not 23 September (UIT No. 141 13.IX.1977).
a2244 11
# From Issam Al-Zuwairi (2022-10-05):
# The Council of Ministers in Jordan decided Wednesday 5th October 2022,
# that daylight saving time (DST) will be throughout the year....
#
# From Brian Inglis (2022-10-06):
# https://petra.gov.jo/Include/InnerPage.jsp?ID=45567&lang=en&name=en_news
#
# From Paul Eggert (2022-10-05):
# Like Syria, model this as a transition from EEST +03 (DST) to plain +03
# (non-DST) at the point where DST would otherwise have ended.
d2276 2
a2277 2
Rule Jordan 2014 2022 - Oct lastFri 0:00s 0 -
Rule Jordan 2022 only - Feb lastThu 24:00 1:00 S
d2280 1
a2280 2
2:00 Jordan EE%sT 2022 Oct 28 0:00s
3:00 - +03
d2706 2
d2724 1
a2725 34
#
# From Saadallah Itani (2023-03-23):
# Lebanon ... announced today delay of Spring forward from March 25 to April 20.
#
# From Paul Eggert (2023-03-27):
# This announcement was by the Lebanese caretaker prime minister Najib Mikati.
# https://www.mtv.com.lb/en/News/Local/1352516/lebanon-postpones-daylight-saving-time-adoption
# A video was later leaked to the media of parliament speaker Nabih Berri
# asking Mikati to postpone DST to aid observance of Ramadan, Mikati objecting
# that this would cause problems such as scheduling airline flights, to which
# Berri interjected, "What flights?"
#
# The change was controversial and led to a partly-sectarian divide.
# Many Lebanese institutions, including the education ministry, the Maronite
# church, and two news channels LCBI and MTV, ignored the announcement and
# went ahead with the long-scheduled spring-forward on March 25/26, some
# arguing that the prime minister had not followed the law because the change
# had not been approved by the cabinet. Google went with the announcement;
# Apple ignored it. At least one bank followed the announcement for its doors,
# but ignored the announcement in internal computer systems.
# Beirut international airport listed two times for each departure.
# Dan Azzi wrote "My view is that this whole thing is a Dumb and Dumber movie."
# Eventually the prime minister backed down, said the cabinet had decided to
# stick with its 1998 decision, and that DST would begin midnight March 29/30.
# https://www.nna-leb.gov.lb/en/miscellaneous/604093/lebanon-has-two-times-of-day-amid-daylight-savings
# https://www.cnbc.com/2023/03/27/lebanon-in-two-different-time-zones-as-government-disagrees-on-daylight-savings.html
#
# Although we could model the chaos with two Zones, that would likely cause
# more trouble than it would cure. Since so many manual clocks and
# computer-based timestamps ignored the announcement, stick with official
# cabinet resolutions in the data while recording the prime minister's
# announcement as a comment. This is how we treated a similar situation in
# Rio de Janeiro in spring 1993.
#
a2750 4
# This one-time rule, announced by the prime minister first for April 21
# then for March 30, is commented out for reasons described above.
#Rule Lebanon 2023 only - Mar 30 0:00 1:00 S
d2755 1
a2755 1
# Malaysia (eastern)
d2769 1
a2769 1
7:30 - +0730 1981 Dec 31 16:00u
d3003 1
a3003 1
# http://www.dailytimes.com.pk/default.asp?page=2008\05\15\story_15-5-2008_pg1_4
d3326 1
a3326 1
# http://safa.ps/details/news/74352/بدء-التوقيت-الصيفي-بالضفة-وغزة-ليلة-الجمعة.html
d3336 1
a3336 1
# http://safa.ps/details/news/99844/رام-الله-بدء-التوقيت-الصيفي-29-الجاري.html
d3410 4
a3429 47
# From Heba Hamad (2022-08-30):
# winter time will begin in Palestine from Saturday 10-29, 02:00 AM by
# 60 minutes backwards. Also the state of Palestine adopted the summer
# and winter time for the years: 2023,2024,2025,2026 ...
# https://mm.icann.org/pipermail/tz/attachments/20220830/9f024566/Time-0001.pdf
# (2022-08-31): ... the Saturday before the last Sunday in March and October
# at 2:00 AM ,for the years from 2023 to 2026.
# (2022-09-05): https://mtit.pna.ps/Site/New/1453
# From Heba Hamad (2023-03-22):
# ... summer time will begin in Palestine from Saturday 04-29-2023,
# 02:00 AM by 60 minutes forward.
# From Heba Hemad (2023-10-09):
# ... winter time will begin in Palestine from Saturday 10-28-2023,
# 02:00 AM by 60 minutes back.
#
# From Paul Eggert (2023-03-22):
# For now, guess that spring and fall transitions will normally
# continue to use 2022's rules, that during DST Palestine will switch
# to standard time at 02:00 the last Saturday before Ramadan and back
# to DST at 02:00 the first Saturday after Ramadan, and that
# if the normal spring-forward or fall-back transition occurs during
# Ramadan the former is delayed and the latter advanced.
# To implement this, I predicted Ramadan-oriented transition dates for
# 2023 through 2086 by running the following program under GNU Emacs 28.2,
# with the results integrated by hand into the table below.
# Predictions after 2086 are approximated without Ramadan.
#
# (let ((islamic-year 1444))
# (require 'cal-islam)
# (while (< islamic-year 1510)
# (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year)))
# (b (+ 1 (calendar-islamic-to-absolute (list 10 1 islamic-year))))
# (saturday 6))
# (while (/= saturday (mod (setq a (1- a)) 7)))
# (while (/= saturday (mod b 7))
# (setq b (1+ b)))
# (setq a (calendar-gregorian-from-absolute a))
# (setq b (calendar-gregorian-from-absolute b))
# (insert
# (format
# (concat "Rule Palestine\t%d\tonly\t-\t%s\t%2d\t2:00\t0\t-\n"
# "Rule Palestine\t%d\tonly\t-\t%s\t%2d\t2:00\t1:00\tS\n")
# (car (cdr (cdr a))) (calendar-month-name (car a) t) (car (cdr a))
# (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b)))))
# (setq islamic-year (+ 1 islamic-year))))
d3460 2
a3461 2
Rule Palestine 2016 2018 - Mar Sat<=30 1:00 1:00 S
Rule Palestine 2016 2018 - Oct Sat<=30 1:00 0 -
d3463 2
a3464 2
Rule Palestine 2019 only - Oct Sat<=30 0:00 0 -
Rule Palestine 2020 2021 - Mar Sat<=30 0:00 1:00 S
d3466 2
a3467 82
Rule Palestine 2021 only - Oct 29 1:00 0 -
Rule Palestine 2022 only - Mar 27 0:00 1:00 S
Rule Palestine 2022 2035 - Oct Sat<=30 2:00 0 -
Rule Palestine 2023 only - Apr 29 2:00 1:00 S
Rule Palestine 2024 only - Apr 13 2:00 1:00 S
Rule Palestine 2025 only - Apr 5 2:00 1:00 S
Rule Palestine 2026 2054 - Mar Sat<=30 2:00 1:00 S
Rule Palestine 2036 only - Oct 18 2:00 0 -
Rule Palestine 2037 only - Oct 10 2:00 0 -
Rule Palestine 2038 only - Sep 25 2:00 0 -
Rule Palestine 2039 only - Sep 17 2:00 0 -
Rule Palestine 2039 only - Oct 22 2:00 1:00 S
Rule Palestine 2039 2067 - Oct Sat<=30 2:00 0 -
Rule Palestine 2040 only - Sep 1 2:00 0 -
Rule Palestine 2040 only - Oct 13 2:00 1:00 S
Rule Palestine 2041 only - Aug 24 2:00 0 -
Rule Palestine 2041 only - Sep 28 2:00 1:00 S
Rule Palestine 2042 only - Aug 16 2:00 0 -
Rule Palestine 2042 only - Sep 20 2:00 1:00 S
Rule Palestine 2043 only - Aug 1 2:00 0 -
Rule Palestine 2043 only - Sep 12 2:00 1:00 S
Rule Palestine 2044 only - Jul 23 2:00 0 -
Rule Palestine 2044 only - Aug 27 2:00 1:00 S
Rule Palestine 2045 only - Jul 15 2:00 0 -
Rule Palestine 2045 only - Aug 19 2:00 1:00 S
Rule Palestine 2046 only - Jun 30 2:00 0 -
Rule Palestine 2046 only - Aug 11 2:00 1:00 S
Rule Palestine 2047 only - Jun 22 2:00 0 -
Rule Palestine 2047 only - Jul 27 2:00 1:00 S
Rule Palestine 2048 only - Jun 6 2:00 0 -
Rule Palestine 2048 only - Jul 18 2:00 1:00 S
Rule Palestine 2049 only - May 29 2:00 0 -
Rule Palestine 2049 only - Jul 3 2:00 1:00 S
Rule Palestine 2050 only - May 21 2:00 0 -
Rule Palestine 2050 only - Jun 25 2:00 1:00 S
Rule Palestine 2051 only - May 6 2:00 0 -
Rule Palestine 2051 only - Jun 17 2:00 1:00 S
Rule Palestine 2052 only - Apr 27 2:00 0 -
Rule Palestine 2052 only - Jun 1 2:00 1:00 S
Rule Palestine 2053 only - Apr 12 2:00 0 -
Rule Palestine 2053 only - May 24 2:00 1:00 S
Rule Palestine 2054 only - Apr 4 2:00 0 -
Rule Palestine 2054 only - May 16 2:00 1:00 S
Rule Palestine 2055 only - May 1 2:00 1:00 S
Rule Palestine 2056 only - Apr 22 2:00 1:00 S
Rule Palestine 2057 only - Apr 7 2:00 1:00 S
Rule Palestine 2058 max - Mar Sat<=30 2:00 1:00 S
Rule Palestine 2068 only - Oct 20 2:00 0 -
Rule Palestine 2069 only - Oct 12 2:00 0 -
Rule Palestine 2070 only - Oct 4 2:00 0 -
Rule Palestine 2071 only - Sep 19 2:00 0 -
Rule Palestine 2072 only - Sep 10 2:00 0 -
Rule Palestine 2072 only - Oct 15 2:00 1:00 S
Rule Palestine 2072 max - Oct Sat<=30 2:00 0 -
Rule Palestine 2073 only - Sep 2 2:00 0 -
Rule Palestine 2073 only - Oct 7 2:00 1:00 S
Rule Palestine 2074 only - Aug 18 2:00 0 -
Rule Palestine 2074 only - Sep 29 2:00 1:00 S
Rule Palestine 2075 only - Aug 10 2:00 0 -
Rule Palestine 2075 only - Sep 14 2:00 1:00 S
Rule Palestine 2076 only - Jul 25 2:00 0 -
Rule Palestine 2076 only - Sep 5 2:00 1:00 S
Rule Palestine 2077 only - Jul 17 2:00 0 -
Rule Palestine 2077 only - Aug 28 2:00 1:00 S
Rule Palestine 2078 only - Jul 9 2:00 0 -
Rule Palestine 2078 only - Aug 13 2:00 1:00 S
Rule Palestine 2079 only - Jun 24 2:00 0 -
Rule Palestine 2079 only - Aug 5 2:00 1:00 S
Rule Palestine 2080 only - Jun 15 2:00 0 -
Rule Palestine 2080 only - Jul 20 2:00 1:00 S
Rule Palestine 2081 only - Jun 7 2:00 0 -
Rule Palestine 2081 only - Jul 12 2:00 1:00 S
Rule Palestine 2082 only - May 23 2:00 0 -
Rule Palestine 2082 only - Jul 4 2:00 1:00 S
Rule Palestine 2083 only - May 15 2:00 0 -
Rule Palestine 2083 only - Jun 19 2:00 1:00 S
Rule Palestine 2084 only - Apr 29 2:00 0 -
Rule Palestine 2084 only - Jun 10 2:00 1:00 S
Rule Palestine 2085 only - Apr 21 2:00 0 -
Rule Palestine 2085 only - Jun 2 2:00 1:00 S
Rule Palestine 2086 only - Apr 13 2:00 0 -
Rule Palestine 2086 only - May 18 2:00 1:00 S
a3563 2
# Japan's year-round bases in Antarctica match this since 1970.
#
d3619 1
a3619 1
7:30 - +0730 1981 Dec 31 16:00u
d3666 1
a3666 1
# "SLST" seems to be reasonably recent and rarely used outside time
d3835 2
a3836 9
# From Steffen Thorsen (2022-10-05):
# Syria is adopting year-round DST, starting this autumn....
# From https://www.enabbaladi.net/archives/607812
# "This [the decision] came after the weekly government meeting today,
# Tuesday 4 October ..."
#
# From Paul Eggert (2022-10-05):
# Like Jordan, model this as a transition from EEST +03 (DST) to plain +03
# (non-DST) at the point where DST would otherwise have ended.
d3842 2
a3843 2
Rule Syria 2012 2022 - Mar lastFri 0:00 1:00 S
Rule Syria 2009 2022 - Oct lastFri 0:00 0 -
d3847 1
a3847 2
2:00 Syria EE%sT 2022 Oct 28 0:00
3:00 - +03
a3873 2
#
# The Crozet Is also observe Réunion time; see the 'antarctica' file.
d3896 1
a3896 1
# Vietnam (southern)
d3971 1
@
1.1.1.23.2.8
log
@Pullup the following, requested by kre in ticket #1796:
external/public-domain/tz/dist/Makefile up to 1.1.1.38
external/public-domain/tz/dist/NEWS up to 1.1.1.45
external/public-domain/tz/dist/TZDATA_VERSION up to 1.37
external/public-domain/tz/dist/africa up to 1.1.1.33
external/public-domain/tz/dist/asia up to 1.12
external/public-domain/tz/dist/australasia up to 1.9
external/public-domain/tz/dist/checknow.awk up to 1.1.1.2
external/public-domain/tz/dist/etcetera up to 1.1.1.8
external/public-domain/tz/dist/europe up to 1.1.1.39
external/public-domain/tz/dist/leap-seconds.list up to 1.7
external/public-domain/tz/dist/leapseconds up to 1.7
external/public-domain/tz/dist/leapseconds.awk up to 1.1.1.14
external/public-domain/tz/dist/northamerica up to 1.1.1.35
external/public-domain/tz/dist/southamerica up to 1.1.1.25
external/public-domain/tz/dist/theory.html up to 1.1.1.19
external/public-domain/tz/dist/version up to 1.12
external/public-domain/tz/dist/zishrink.awk up to 1.1.1.9
external/public-domain/tz/dist/zonenow.tab up to 1.1.1.2
doc/3RDPARTY apply patch
Updated tzdata to 2024a
@
text
@a2480 11
# From Zhanbolat Raimbekov (2024-01-19):
# Kazakhstan (all parts) switching to UTC+5 on March 1, 2024
# https://www.gov.kz/memleket/entities/mti/press/news/details/688998?lang=ru
# [in Russian]
# (2024-01-20): https://primeminister.kz/ru/decisions/19012024-20
#
# From Alexander Krivenyshev (2024-01-19):
# According to a different news and the official web site for the Ministry of
# Trade and Integration of the Republic of Kazakhstan:
# https://en.inform.kz/news/kazakhstan-to-switch-to-single-hour-zone-mar-1-54ad0b/
d2484 2
a2485 5
# This includes Abai/Abay (ISO 3166-2 code KZ-10), Aqmola/Akmola (KZ-11),
# Almaty (KZ-19), Almaty city (KZ-75), Astana city (KZ-71),
# East Kazkhstan (KZ-63), Jambyl/Zhambyl (KZ-31), Jetisu/Zhetysu (KZ-33),
# Karaganda (KZ-35), North Kazakhstan (KZ-59), Pavlodar (KZ-55),
# Shyumkent city (KZ-79), Turkistan (KZ-61), and Ulytau (KZ-62).
d2491 2
a2492 3
6:00 - +06 2024 Mar 1 0:00
5:00 - +05
# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-43)
d2505 2
a2506 1
# Qostanay (aka Kostanay, Kustanay) (KZ-39)
d2517 3
a2519 3
6:00 - +06 2024 Mar 1 0:00
5:00 - +05
# Aqtöbe (aka Aktobe, formerly Aktyubinsk) (KZ-15)
d2529 1
a2529 1
# Mangghystaū (KZ-47)
d2541 1
a2541 1
# Atyraū (KZ-23) is like Mangghystaū except it switched from
d2552 1
a2552 1
# West Kazakhstan (KZ-27)
d3483 1
a3483 8
# From Heba Hamad (2024-01-25):
# the summer time for the years 2024,2025 will begin in Palestine
# from Saturday at 02:00 AM by 60 minutes forward as shown below:
# year date
# 2024 2024-04-20
# 2025 2025-04-12
#
# From Paul Eggert (2024-01-25):
d3487 1
a3487 1
# to DST at 02:00 the second Saturday after Ramadan, and that
d3491 1
a3491 1
# 2026 through 2086 by running the following program under GNU Emacs 29.2,
d3495 1
a3495 1
# (let ((islamic-year 1447))
a3503 1
# (setq b (+ 7 b))
d3554 2
a3555 2
Rule Palestine 2024 only - Apr 20 2:00 1:00 S
Rule Palestine 2025 only - Apr 12 2:00 1:00 S
d3561 2
d3564 1
a3564 2
Rule Palestine 2040 only - Oct 20 2:00 1:00 S
Rule Palestine 2040 2067 - Oct Sat<=30 2:00 0 -
d3566 1
a3566 1
Rule Palestine 2041 only - Oct 5 2:00 1:00 S
d3568 1
a3568 1
Rule Palestine 2042 only - Sep 27 2:00 1:00 S
d3570 1
a3570 1
Rule Palestine 2043 only - Sep 19 2:00 1:00 S
d3572 1
a3572 1
Rule Palestine 2044 only - Sep 3 2:00 1:00 S
d3574 1
a3574 1
Rule Palestine 2045 only - Aug 26 2:00 1:00 S
d3576 1
a3576 1
Rule Palestine 2046 only - Aug 18 2:00 1:00 S
d3578 1
a3578 1
Rule Palestine 2047 only - Aug 3 2:00 1:00 S
d3580 1
a3580 1
Rule Palestine 2048 only - Jul 25 2:00 1:00 S
d3582 1
a3582 1
Rule Palestine 2049 only - Jul 10 2:00 1:00 S
d3584 1
a3584 1
Rule Palestine 2050 only - Jul 2 2:00 1:00 S
d3586 1
a3586 1
Rule Palestine 2051 only - Jun 24 2:00 1:00 S
d3588 1
a3588 1
Rule Palestine 2052 only - Jun 8 2:00 1:00 S
d3590 1
a3590 1
Rule Palestine 2053 only - May 31 2:00 1:00 S
d3592 5
a3596 6
Rule Palestine 2054 only - May 23 2:00 1:00 S
Rule Palestine 2055 only - May 8 2:00 1:00 S
Rule Palestine 2056 only - Apr 29 2:00 1:00 S
Rule Palestine 2057 only - Apr 14 2:00 1:00 S
Rule Palestine 2058 only - Apr 6 2:00 1:00 S
Rule Palestine 2059 max - Mar Sat<=30 2:00 1:00 S
d3602 1
a3602 1
Rule Palestine 2072 only - Oct 22 2:00 1:00 S
d3605 1
a3605 1
Rule Palestine 2073 only - Oct 14 2:00 1:00 S
d3607 1
a3607 1
Rule Palestine 2074 only - Oct 6 2:00 1:00 S
d3609 1
a3609 1
Rule Palestine 2075 only - Sep 21 2:00 1:00 S
d3611 1
a3611 1
Rule Palestine 2076 only - Sep 12 2:00 1:00 S
d3613 1
a3613 1
Rule Palestine 2077 only - Sep 4 2:00 1:00 S
d3615 1
a3615 1
Rule Palestine 2078 only - Aug 20 2:00 1:00 S
d3617 1
a3617 1
Rule Palestine 2079 only - Aug 12 2:00 1:00 S
d3619 1
a3619 1
Rule Palestine 2080 only - Jul 27 2:00 1:00 S
d3621 1
a3621 1
Rule Palestine 2081 only - Jul 19 2:00 1:00 S
d3623 1
a3623 1
Rule Palestine 2082 only - Jul 11 2:00 1:00 S
d3625 1
a3625 1
Rule Palestine 2083 only - Jun 26 2:00 1:00 S
d3627 1
a3627 1
Rule Palestine 2084 only - Jun 17 2:00 1:00 S
d3629 1
a3629 1
Rule Palestine 2085 only - Jun 9 2:00 1:00 S
d3631 1
a3631 1
Rule Palestine 2086 only - May 25 2:00 1:00 S
d3659 1
a3659 1
# From Paul Eggert (2024-01-21):
d3667 1
a3667 1
# https://webspace.science.uu.nl/~gent0113/idl/idl_philippines.htm
d4084 1
a4084 2
# From Paul Eggert (2024-01-14) after a 2014 heads-up from Trần Ngọc Quân
# and a 2024-01-14 heads-up from Đoàn Trần Công Danh:
d4114 2
a4115 5
# Hoàng Xuân Hãn: "Lịch và lịch Việt Nam". Tập san Khoa học Xã hội,
# No. 9, Paris, February 1982.
#
# Lê Thành Lân: "Lịch và niên biểu lịch sử hai mươi thế kỷ (0001-2010)",
# NXB Thống kê, Hanoi, 2000.
d4117 2
a4118 2
# Lê Thành Lân: "Lịch hai thế kỷ (1802-2010) và các lịch vĩnh cửu",
# NXB Thuận Hoá, Huế, 1995.
d4120 2
a4121 20
# Here is the decision for the September 1945 transition:
# Võ Nguyên Giáp, Việt Nam Dân Quốc Công Báo, No. 1 (1945-09-29), page 13
# http://baochi.nlv.gov.vn/baochi/cgi-bin/baochi?a=d&d=JwvzO19450929.2.5&dliv=none
# It says that on 1945-09-01 at 24:00, Vietnam moved back two hours, to +07.
# It also mentions a 1945-03-29 decree (by a Japanese Goveror-General)
# to set the time zone to +09, but does not say whether that decree
# merely legalized an earlier change to +09.
#
# July 1955 transition:
# Ngô Đình Diệm, Công Báo Việt Nam, No. 92 (1955-07-02), page 1780-1781
# Ordinance (Dụ) No. 46 (1955-06-25)
# http://ddsnext.crl.edu/titles/32341#?c=0&m=29&s=0&cv=4&r=0&xywh=-89%2C342%2C1724%2C1216
# It says that on 1955-07-01 at 01:00, South Vietnam moved back 1 hour (to +07).
#
# December 1959 transition:
# Ngô Đình Diệm, Công Báo Việt Nam Cộng Hòa, 1960 part 1 (1960-01-02), page 62
# Decree (Sắc lệnh) No. 362-TTP (1959-12-30)
# http://ddsnext.crl.edu/titles/32341#?c=0&m=138&s=0&cv=793&r=0&xywh=-54%2C1504%2C1705%2C1202
# It says that on 1959-12-31 at 23:00, South Vietnam moved forward 1 hour (to +08).
d4129 1
a4129 1
9:00 - +09 1945 Sep 1 24:00
d4131 1
a4131 1
8:00 - +08 1955 Jul 1 01:00
@
1.1.1.23.2.9
log
@Pull up the following revisions, requested by kre in ticket #1940:
external/public-domain/tz/dist/zoneinfo2tdf.pl delete
external/public-domain/tz/dist/CONTRIBUTING up to 1.1.1.9
external/public-domain/tz/dist/Makefile up to 1.3
external/public-domain/tz/dist/NEWS up to 1.3
external/public-domain/tz/dist/TZDATA_VERSION up to 1.41
external/public-domain/tz/dist/africa up to 1.2
external/public-domain/tz/dist/antarctica up to 1.3
external/public-domain/tz/dist/asia up to 1.14
external/public-domain/tz/dist/australasia up to 1.11
external/public-domain/tz/dist/backward up to 1.12
external/public-domain/tz/dist/backzone up to 1.2
external/public-domain/tz/dist/checknow.awk up to 1.3
external/public-domain/tz/dist/checktab.awk up to 1.3
external/public-domain/tz/dist/etcetera up to 1.3
external/public-domain/tz/dist/europe up to 1.3
external/public-domain/tz/dist/factory up to 1.3
external/public-domain/tz/dist/leap-seconds.list up to 1.9
external/public-domain/tz/dist/leapseconds up to 1.9
external/public-domain/tz/dist/northamerica up to 1.3
external/public-domain/tz/dist/southamerica up to 1.3
external/public-domain/tz/dist/theory.html up to 1.3
external/public-domain/tz/dist/version up to 1.14
external/public-domain/tz/dist/ziguard.awk up to 1.1.1.11
external/public-domain/tz/dist/zone.tab up to 1.3
external/public-domain/tz/dist/zone1970.tab up to 1.3
external/public-domain/tz/dist/zonenow.tab up to 1.3
distrib/sets/lists/base/mi (apply patch)
doc/3RDPARTY (apply patch)
Updated tzdata to 2025b (using 2025btgz)
@
text
@d86 2
a87 2
4:00 - %z 1945
4:30 - %z
d119 6
a124 6
3:00 - %z 1957 Mar
4:00 RussiaAsia %z 1991 Mar 31 2:00s
3:00 RussiaAsia %z 1995 Sep 24 2:00s
4:00 - %z 1997
4:00 RussiaAsia %z 2011
4:00 Armenia %z
d145 6
a150 6
3:00 - %z 1957 Mar
4:00 RussiaAsia %z 1991 Mar 31 2:00s
3:00 RussiaAsia %z 1992 Sep lastSun 2:00s
4:00 - %z 1996
4:00 EUAsia %z 1997
4:00 Azer %z
d238 5
a242 5
6:30 - %z 1942 May 15
5:30 - %z 1942 Sep
6:30 - %z 1951 Sep 30
6:00 - %z 2009
6:00 Dhaka %z
d247 2
a248 2
5:30 - %z 1987 Oct
6:00 - %z
d258 2
a259 2
5:00 - %z 1996
6:00 - %z
d280 3
a282 3
6:30 - %z 1942 May
9:00 - %z 1945 May 3
6:30 - %z
d680 1
a680 1
6:00 - %z
d1138 1
a1138 1
9:00 Macau %z 1945 Sep 30 24:00
d1181 1
a1181 1
3:00 - %z 2017 Oct 29 1:00u
d1222 9
a1230 9
3:00 - %z 1957 Mar
4:00 RussiaAsia %z 1991 Mar 31 2:00s
3:00 RussiaAsia %z 1992
3:00 E-EurAsia %z 1994 Sep lastSun
4:00 E-EurAsia %z 1996 Oct lastSun
4:00 1:00 %z 1997 Mar lastSun
4:00 E-EurAsia %z 2004 Jun 27
3:00 RussiaAsia %z 2005 Mar lastSun 2:00
4:00 - %z
a1233 7
# From Tim Parenti (2024-07-01):
# The 1912-01-01 transition occurred at 00:00 new time, per the 1911-05-24
# Portuguese decree (see Europe/Lisbon). A provision in article 5(c) of the
# decree prescribed that Timor "will keep counting time in harmony with
# neighboring foreign colonies, [for] as long as they do not adopt the time
# that belongs to them in [the Washington Convention] system."
d1257 5
a1261 5
Zone Asia/Dili 8:22:20 - LMT 1911 Dec 31 16:00u
8:00 - %z 1942 Feb 21 23:00
9:00 - %z 1976 May 3
8:00 - %z 2000 Sep 17 0:00
9:00 - %z
d1327 1
a1327 1
5:30 1:00 %z 1942 May 15
d1329 1
a1329 1
5:30 1:00 %z 1945 Oct 15
d1381 6
a1386 6
7:20 - %z 1932 Nov
7:30 - %z 1942 Mar 23
9:00 - %z 1945 Sep 23
7:30 - %z 1948 May
8:00 - %z 1950 May
7:30 - %z 1964
d1391 5
a1395 5
7:30 - %z 1942 Jan 29
9:00 - %z 1945 Sep 23
7:30 - %z 1948 May
8:00 - %z 1950 May
7:30 - %z 1964
d1401 2
a1402 2
8:00 - %z 1942 Feb 9
9:00 - %z 1945 Sep 23
d1406 2
a1407 2
9:00 - %z 1944 Sep 1
9:30 - %z 1964
d1643 3
a1645 3
3:30 Iran %z 1977 Oct 20 24:00
4:00 Iran %z 1979
3:30 Iran %z
d1688 2
a1689 2
3:00 - %z 1982 May
3:00 Iraq %z
d2286 1
a2286 1
3:00 - %z
d2497 1
a2497 1
# East Kazakhstan (KZ-63), Jambyl/Zhambyl (KZ-31), Jetisu/Zhetysu (KZ-33),
d2499 1
a2499 1
# Shymkent city (KZ-79), Turkistan (KZ-61), and Ulytau (KZ-62).
d2501 6
a2506 6
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00s
5:00 RussiaAsia %z 1992 Jan 19 2:00s
6:00 RussiaAsia %z 2004 Oct 31 2:00s
6:00 - %z 2024 Mar 1 0:00
5:00 - %z
d2509 11
a2519 11
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1991 Sep 29 2:00s
5:00 RussiaAsia %z 1992 Jan 19 2:00s
6:00 RussiaAsia %z 1992 Mar 29 2:00s
5:00 RussiaAsia %z 2004 Oct 31 2:00s
6:00 - %z 2018 Dec 21 0:00
5:00 - %z
d2524 9
a2532 9
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 2004 Oct 31 2:00s
6:00 - %z 2024 Mar 1 0:00
5:00 - %z
d2535 8
a2542 8
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
d2547 8
a2554 8
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 1994 Sep 25 2:00s
4:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
d2558 8
a2565 8
3:00 - %z 1930 Jun 21
5:00 - %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 1999 Mar 28 2:00s
4:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
d2570 9
a2578 9
3:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1989 Mar 26 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 1992 Mar 29 2:00s
4:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
d2599 5
a2603 5
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00s
5:00 RussiaAsia %z 1991 Aug 31 2:00
5:00 Kyrgyz %z 2005 Aug 12
6:00 - %z
d2834 4
a2837 4
7:30 - %z 1933
8:00 NBorneo %z 1942 Feb 16
9:00 - %z 1945 Sep 12
8:00 - %z
d2843 1
a2843 1
5:00 - %z
d2945 3
a2947 31
# From Heitor David Pinto (2024-06-23):
# Sources about time zones in Mongolia seem to list one of two conflicting
# configurations. The first configuration, mentioned in a comment to the TZ
# database in 1999, citing a Mongolian government website, lists the provinces
# of Bayan-Ölgii, Khovd and Uvs in UTC+7, and the rest of the country in
# UTC+8. The second configuration, mentioned in a comment to the database in
# 2001, lists Bayan-Ölgii, Khovd, Uvs, Govi-Altai and Zavkhan in UTC+7, Dornod
# and Sükhbaatar in UTC+9, and the rest of the country in UTC+8.
#
# The first configuration is still mentioned by several Mongolian travel
# agencies:
# https://www.adventurerider.mn/en/page/about_mongolia
# http://www.naturetours.mn/nt/mongolia.php
# https://www.newjuulchin.mn/web/content/7506?unique=fa24a0f6e96e022a3578ee5195ac879638c734ce
#
# It also matches these flight schedules in 2013:
# http://web.archive.org/web/20130722023600/https://www.hunnuair.com/en/timetabled
# The flight times imply that the airports of Uliastai (Zavkhan), Choibalsan
# (Dornod) and Altai (Govi-Altai) are in the same time zone as Ulaanbaatar,
# and Khovd is one hour behind....
#
# The second configuration was mentioned by an official of the Mongolian
# standards agency in an interview in 2014: https://ikon.mn/n/9v6
# And it's still listed by the Mongolian aviation agency:
# https://ais.mn/files/aip/eAIP/2023-12-25/html/eSUP/ZM-eSUP-23-04-en-MN.html
#
# ... I believe that the first configuration is what is actually observed in
# Mongolia and has been so all along, at least since 1999. The second
# configuration closely matches the ideal time zone boundaries at 97.5° E and
# 112.5° E but it doesn't seem to be used in practice.
d2986 2
a2987 2
6:00 - %z 1978
7:00 Mongol %z
d2990 9
a2998 2
7:00 - %z 1978
8:00 Mongol %z
d3003 2
a3004 2
5:30 - %z 1986
5:45 - %z
d3155 4
a3158 4
5:30 - %z 1942 Sep
5:30 1:00 %z 1945 Oct 15
5:30 - %z 1951 Sep 30
5:00 - %z 1971 Mar 26
d3690 1
d3692 13
a3704 63
# From P Chan (2021-05-10):
# Here's a fairly comprehensive article in Japanese:
# https://wiki.suikawiki.org/n/Philippine%20Time
# (2021-05-16):
# According to the references listed in the article,
# the periods that the Philippines (Manila) observed DST or used +9 are:
#
# 1936-10-31 24:00 to 1937-01-15 24:00
# (Proclamation No. 104, Proclamation No. 126)
# 1941-12-15 24:00 to 1945-11-30 24:00
# (Proclamation No. 789, Proclamation No. 20)
# 1954-04-11 24:00 to 1954-06-04 24:00
# (Proclamation No. 13, Proclamation No. 33)
# 1977-03-27 24:00 to 1977-09-21 24:00
# (Proclamation No. 1629, Proclamation No. 1641)
# 1990-05-21 00:00 to 1990-07-28 24:00
# (National Emergency Memorandum Order No. 17, Executive Order No. 415)
#
# Proclamation No. 104 ... October 30, 1936
# https://www.officialgazette.gov.ph/1936/10/30/proclamation-no-104-s-1936/
# Proclamation No. 126 ... January 15, 1937
# https://www.officialgazette.gov.ph/1937/01/15/proclamation-no-126-s-1937/
# Proclamation No. 789 ... December 13, 1941
# https://www.officialgazette.gov.ph/1941/12/13/proclamation-no-789-s-1941/
# Proclamation No. 20 ... November 11, 1945
# https://www.officialgazette.gov.ph/1945/11/11/proclamation-no-20-s-1945/
# Proclamation No. 13 ... April 6, 1954
# https://www.officialgazette.gov.ph/1954/04/06/proclamation-no-13-s-1954/
# Proclamation No. 33 ... June 3, 1954
# https://www.officialgazette.gov.ph/1954/06/03/proclamation-no-33-s-1954/
# Proclamation No. 1629 ... March 25, 1977
# https://www.officialgazette.gov.ph/1977/03/25/proclamation-no-1629-s-1977/
# Proclamation No. 1641 ...May 26, 1977
# https://www.officialgazette.gov.ph/1977/05/26/proclamation-no-1641-s-1977/
# National Emergency Memorandum Order No. 17 ... May 2, 1990
# https://www.officialgazette.gov.ph/1990/05/02/national-emergency-memorandum-order-no-17-s-1990/
# Executive Order No. 415 ... July 20, 1990
# https://www.officialgazette.gov.ph/1990/07/20/executive-order-no-415-s-1990/
#
# During WWII, Proclamation No. 789 fixed two periods of DST. The first period
# was set to continue only until January 31, 1942. But Manila was occupied by
# the Japanese earlier in the month....
#
# For the date of the adoption of standard time, Shank[s] gives 1899-05-11.
# The article is not able to state the basis of that. I guess it was based on
# a US War Department Circular issued on that date.
# https://books.google.com/books?id=JZ1PAAAAYAAJ&pg=RA3-PA8
#
# However, according to other sources, standard time was adopted on
# 1899-09-06. Also, the LMT was GMT+8:03:52
# https://books.google.com/books?id=MOYIAQAAIAAJ&pg=PA521
# https://books.google.com/books?id=lSnqqatpYikC&pg=PA21
#
# From Paul Eggert (2024-09-05):
# The penultimate URL in P Chan's email refers to page 521 of
# Selga M, The Time Service in the Philippines.
# Proc Pan-Pacific Science Congress. Vol. 1 (1923), 519-532.
# It says, "The change from the meridian 120° 58' 04" to the 120th implied a
# change of 3 min. 52s.26 in time; consequently on 6th September, 1899,
# Manila Observatory gave the noon signal 3 min. 52s.26 later than before".
#
# Wikipedia says the US declared Manila liberated on March 4, 1945;
# this doesn't affect clocks, just our time zone abbreviation and DST flag.
d3706 1
a3706 1
# From Paul Goyette (2018-06-15) with URLs updated by Guy Harris (2024-02-15):
d3712 2
a3713 2
# [1] https://www.officialgazette.gov.ph/2013/05/15/republic-act-no-10535/
# [2] https://prsd.pagasa.dost.gov.ph/index.php/28-astronomy/302-philippine-standard-time
d3722 6
d3729 11
a3739 19
Rule Phil 1936 only - Oct 31 24:00 1:00 D
Rule Phil 1937 only - Jan 15 24:00 0 S
Rule Phil 1941 only - Dec 15 24:00 1:00 D
# The following three rules were canceled by Japan:
#Rule Phil 1942 only - Jan 31 24:00 0 S
#Rule Phil 1942 only - Mar 1 0:00 1:00 D
#Rule Phil 1942 only - Jun 30 24:00 0 S
Rule Phil 1945 only - Nov 30 24:00 0 S
Rule Phil 1954 only - Apr 11 24:00 1:00 D
Rule Phil 1954 only - Jun 4 24:00 0 S
Rule Phil 1977 only - Mar 27 24:00 1:00 D
Rule Phil 1977 only - Sep 21 24:00 0 S
Rule Phil 1990 only - May 21 0:00 1:00 D
Rule Phil 1990 only - Jul 28 24:00 0 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Manila -15:56:08 - LMT 1844 Dec 31
8:03:52 - LMT 1899 Sep 6 4:00u
8:00 Phil P%sT 1942 Feb 11 24:00
9:00 - JST 1945 Mar 4
d3745 2
a3746 2
4:00 - %z 1972 Jun
3:00 - %z
d3794 1
a3794 1
3:00 - %z
d3802 7
a3808 7
7:00 - %z 1933 Jan 1
7:00 0:20 %z 1936 Jan 1
7:20 - %z 1941 Sep 1
7:30 - %z 1942 Feb 16
9:00 - %z 1945 Sep 12
7:30 - %z 1981 Dec 31 16:00u
8:00 - %z
d3866 7
a3872 7
5:30 - %z 1942 Jan 5
5:30 0:30 %z 1942 Sep
5:30 1:00 %z 1945 Oct 16 2:00
5:30 - %z 1996 May 25 0:00
6:30 - %z 1996 Oct 26 0:30
6:00 - %z 2006 Apr 15 0:30
5:30 - %z
d4043 1
a4043 1
3:00 - %z
d4049 4
a4052 4
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00s
5:00 1:00 %z 1991 Sep 9 2:00s
5:00 - %z
d4058 1
a4058 1
7:00 - %z
d4064 4
a4067 4
4:00 - %z 1930 Jun 21
5:00 RussiaAsia %z 1991 Mar 31 2:00
4:00 RussiaAsia %z 1992 Jan 19 2:00
5:00 - %z
d4074 1
a4074 1
4:00 - %z
d4080 6
a4085 6
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1992
5:00 - %z
d4089 4
a4092 4
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00
5:00 RussiaAsia %z 1992
5:00 - %z
d4150 1
a4150 1
# It also mentions a 1945-03-29 decree (by a Japanese Governor-General)
d4171 8
a4178 8
7:00 - %z 1942 Dec 31 23:00
8:00 - %z 1945 Mar 14 23:00
9:00 - %z 1945 Sep 1 24:00
7:00 - %z 1947 Apr 1
8:00 - %z 1955 Jul 1 01:00
7:00 - %z 1959 Dec 31 23:00
8:00 - %z 1975 Jun 13
7:00 - %z
@
1.1.1.23.2.10
log
@Pull up following revision(s) (requested by kre in ticket #1940):
external/public-domain/tz/dist/northamerica: revision 1.4
external/public-domain/tz/dist/version: revision 1.15
external/public-domain/tz/dist/asia: revision 1.15
external/public-domain/tz/dist/zonenow.tab: revision 1.4
external/public-domain/tz/dist/southamerica: revision 1.4
external/public-domain/tz/dist/zone1970.tab: revision 1.4
external/public-domain/tz/dist/NEWS: revision 1.4
external/public-domain/tz/dist/TZDATA_VERSION: revision 1.42
external/public-domain/tz/dist/zone.tab: revision 1.4
Merge tzdata2025b
@
text
@a1523 10
# From Roozbeh Pournader (2025-03-18):
# ... the exact time of Iran's transition from +0400 to +0330 ... was Friday
# 1357/8/19 AP=1978-11-10. Here's a newspaper clip from the Ettela'at
# newspaper, dated 1357/8/14 AP=1978-11-05, translated from Persian
# (at https://w.wiki/DUEY):
# Following the government's decision about returning the official time
# to the previous status, the spokesperson for the Ministry of Energy
# announced today: At the hour 24 of Friday 19th of Aban (=1978-11-10),
# the country's time will be pulled back half an hour.
#
d1651 1
a1651 1
4:00 Iran %z 1978 Nov 10 24:00
@
1.1.1.24
log
@Import tzdata2019c from ftp://ftp.iana.org/tz/releases/tzdata2019c.tar.gz
Summary of changes in tzdata2019c (2019-09-11 08:59:48 -0700):
Fiji observes DST from 2019-11-10 to 2020-01-12
Norfolk Island starts observing Australian-style DST
Plus historic corrections to time in Turkey (1940-85)
South Korea (1948-51) Detroit (US) (1967-8), Perry County
(Indiana, US) (pre 1970) Edmonton (CA) (1967, 1969)
Vancouver (CA) (1946), Vienna (AT) (1946), Kaliningrad (1945-6).
Louisville (US) (1946-50). Brussles (BE) (1892).
Hong Kong Winter Time (1941) now listed as being "DST".
Summary of changes in tzdata2019b (2019-07-01 00:09:53 -0700):
Brazil no longer observes DST
Predictions for Morocco extended to 2087.
Panestine (March 2019) time zone change date corrected
(and guesses for future transitions revised).
Historic updates: Honk Kong (1941 - 1947), Italy (1866).
@
text
@d11 1
a11 1
# From Paul Eggert (2019-07-11):
d50 1
a50 2
# 8:00 HKT HKST Hong Kong (HKWT* for Winter Time in late 1941)
# 8:00 PST PDT* Philippines
d55 2
a56 1
# *I invented the abbreviations HKWT and PDT; see below.
d87 1
a87 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d120 1
a120 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d146 1
a146 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d234 1
a234 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d244 1
a244 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d255 1
a255 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d261 1
a261 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d276 1
a276 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d564 1
a564 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d655 3
d659 1
a659 43
# From Paul Eggert (2019-07-11):
# "Hong Kong winter time" is considered to be daylight saving.
# "Hong Kong had adopted daylight saving on June 15 as a wartime measure,
# clocks moving forward one hour until October 1, when they would be put back
# by just half an hour for 'Hong Kong Winter time', so that daylight saving
# operated year round." -- Low Z. The longest day: when wartime Hong Kong
# introduced daylight saving. South China Morning Post. 2019-06-28.
# https://www.scmp.com/magazines/post-magazine/short-reads/article/3016281/longest-day-when-wartime-hong-kong-introduced
# From P Chan (2018-12-31):
# * According to the Hong Kong Daylight-Saving Regulations, 1941, the
# 1941 spring-forward transition was at 03:00.
# http://sunzi.lib.hku.hk/hkgro/view/g1941/304271.pdf
# http://sunzi.lib.hku.hk/hkgro/view/g1941/305516.pdf
# * According to some articles from South China Morning Post, +08 was
# resumed on 1945-11-18 at 02:00.
# https://i.imgur.com/M2IsZ3c.png
# https://i.imgur.com/iOPqrVo.png
# https://i.imgur.com/fffcGDs.png
# * Some newspapers ... said the 1946 spring-forward transition was on
# 04-21 at 00:00. The Kung Sheung Evening News 1946-04-20 (Chinese)
# https://i.imgur.com/ZSzent0.png
# https://mmis.hkpl.gov.hk///c/portal/cover?c=QF757YsWv5%2FH7zGe%2FKF%2BFLYsuqGhRBfe p.4
# The Kung Sheung Daily News 1946-04-21 (Chinese)
# https://i.imgur.com/7ecmRlcm.png
# https://mmis.hkpl.gov.hk///c/portal/cover?c=QF757YsWv5%2BQBGt1%2BwUj5qG2GqtwR3Wh p.4
# * According to the Summer Time Ordinance (1946), the fallback
# transitions between 1946 and 1952 were at 03:30 Standard Time (+08)
# http://oelawhk.lib.hku.hk/archive/files/bb74b06a74d5294620a15de560ab33c6.pdf
# * Some other laws and regulations related to DST from 1953 to 1979
# Summer Time Ordinance 1953
# https://i.imgur.com/IOlJMav.jpg
# Summer Time (Amendment) Ordinance 1965
# https://i.imgur.com/8rofeLa.jpg
# Interpretation and General Clauses Ordinance (1966)
# https://i.imgur.com/joy3msj.jpg
# Emergency (Summer Time) Regulation 1973
# Interpretation and General Clauses (Amendment) Ordinance 1977
# https://i.imgur.com/RaNqnc4.jpg
# Resolution of the Legislative Council passed on 9 May 1979
# https://www.legco.gov.hk/yr78-79/english/lc_sitg/hansard/h790509.pdf#page=39
# From Paul Eggert (2019-05-31):
d670 1
a670 1
# 1947 13 Apr to 30 Nov
d707 6
d715 7
a721 6
Rule HK 1946 only - Apr 21 0:00 1:00 S
Rule HK 1946 only - Dec 1 3:30s 0 -
Rule HK 1947 only - Apr 13 3:30s 1:00 S
Rule HK 1947 only - Nov 30 3:30s 0 -
Rule HK 1948 only - May 2 3:30s 1:00 S
Rule HK 1948 1952 - Oct Sun>=28 3:30s 0 -
a722 1
Rule HK 1953 1964 - Oct Sun>=31 3:30 0 -
d724 2
d729 3
a731 3
Rule HK 1979 only - May 13 3:30 1:00 S
Rule HK 1979 only - Oct 21 3:30 0 -
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d733 1
a733 1
8:00 - HKT 1941 Jun 15 3:00
d735 2
a736 2
8:00 0:30 HKWT 1941 Dec 25
9:00 - JST 1945 Nov 18 2:00
d860 1
a860 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d998 1
a998 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1037 1
a1037 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1086 1
a1086 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1123 1
a1123 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1189 1
a1189 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1241 1
a1241 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1317 3
a1319 3
# 2008-2087 range disagrees with the astronomical Persian calendar
# for Persian years 1404 (Gregorian 2025) and 1437 (Gregorian 2058), so
# the following code special-cases those years. See Table 15.1, page 264, of:
d1513 1
a1513 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1558 1
a1558 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1625 1
a1625 1
# http://www.moin.gov.il/Documents/שעון%20קיץ/clock-50-years-7-2014.pdf
d1763 14
d1778 1
a1778 1
Rule Zion 2005 2012 - Apr Fri<=1 2:00 1:00 D
d1780 1
d1786 1
d1788 1
d1804 1
a1804 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1896 1
a1896 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d1999 1
a1999 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2040 2
a2041 2
# -- page 6; available at http://libinfo.org/newsr/newsr2574.djvu via
# http://libinfo.org/index.php?id=58564 -- on 1991-03-31 at 2:00 during
d2057 1
a2057 1
# https://ru.wikipedia.org/wiki/Декретное_время
d2196 1
a2196 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2298 1
a2298 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2413 1
a2413 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2417 1
a2417 1
9:00 ROK K%sT 1954 Mar 21
d2462 1
a2462 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2474 1
a2474 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2488 1
a2488 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2496 1
a2496 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2639 1
a2639 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2657 1
a2657 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d2807 1
a2807 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3094 7
a3100 15
# http://pnn.ps/news/401130
# http://palweather.ps/ar/node/50136.html
#
# From Sharif Mustafa (2019-03-26):
# The Palestinian cabinet announced today that the switch to DST will
# be on Fri Mar 29th 2019 by advancing the clock by 60 minutes.
# The decree signing date is Mar 12th but it was not published till today.
# The decree does not specify the exact time of switch.
# http://palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e54e9ea1-50ee-4137-84df-0d6c78da259b
#
# From Even Scharning (2019-04-10):
# Our source in Palestine said it happened Friday 29 at 00:00 local time....
#
# From Paul Eggert (2019-04-10):
# For now, guess spring-ahead transitions are March's last Friday at 00:00.
d3131 1
a3131 1
Rule Palestine 2016 2018 - Mar Sat>=24 1:00 1:00 S
a3132 1
Rule Palestine 2019 max - Mar lastFri 0:00 1:00 S
d3134 1
a3134 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3208 1
a3208 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3216 1
a3216 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3264 1
a3264 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3273 1
a3273 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3337 1
a3337 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3507 1
a3507 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3513 1
a3513 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3521 1
a3521 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3530 1
a3530 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3538 1
a3538 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3545 1
a3545 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
d3593 1
a3593 1
# To 09:00 on 1945-03-14 at 23:00.
d3611 1
a3611 1
# Zone NAME STDOFF RULES FORMAT [UNTIL]
@
1.1.1.25
log
@Import tzdata2020a from ftp://ftp.iana.org/tz/releases/tzdata2020a.tar.gz
Summary of changes in tzdata2020a (2020-04-23 16:03:47 -0700):
Morocco resumes summer time on 2020-05-31, not 2020-05-24.
Canada's Yukon advanced to -07 year-round on 2020-03-08 (summer time
will not end this year)..
America/Nuuk renamed from America/Godthab (both names now exist).
@
text
@a288 21
# From Phake Nick (2020-04-15):
# According to this news report:
# http://news.sina.com.cn/c/2004-09-01/19524201403.shtml
# on April 11, 1919, newspaper in Shanghai said clocks in Shanghai will spring
# forward for an hour starting from midnight of that Saturday. The report did
# not mention what happened in Shanghai thereafter, but it mentioned that a
# similar trial in Tianjin which ended at October 1st as citizens are told to
# recede the clock on September 30 from 12:00pm to 11:00pm. The trial at
# Tianjin got terminated in 1920.
#
# From Paul Eggert (2020-04-15):
# The Returns of Trade and Trade Reports, page 711, says "Daylight saving was
# given a trial during the year, and from the 12th April to the 1st October
# the clocks were all set one hour ahead of sun time. Though the scheme was
# generally esteemed a success, it was announced early in 1920 that it would
# not be repeated."
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Shang 1919 only - Apr 12 24:00 1:00 D
Rule Shang 1919 only - Sep 30 24:00 0 S
a296 83
# From Phake Nick (2020-04-15):
#
# For the history of time in Shanghai between 1940-1942, the situation is
# actually slightly more complex than the table [below].... At the time,
# there were three different authorities in Shanghai, including Shanghai
# International Settlement, a settlement established by western countries with
# its own westernized form of government, Shanghai French Concession, similar
# to the international settlement but is controlled by French, and then the
# rest of the city of Shanghai, which have already been controlled by Japanese
# force through a puppet local government (Wang Jingwei regime). It was
# additionally complicated by the circumstances that, according to the 1940s
# Shanghai summer time essay cited in the database, some
# departments/businesses/people in the Shanghai city itself during that time
# period, refused to change their clock and instead only changed their opening
# hours.
#
# For example, as quoted in the article, in 1940, other than the authority
# itself, power, tram, bus companies, cinema, department stores, and other
# public service organizations have all decided to follow the summer time and
# spring forward the clock. On the other hand, the custom office refused to
# spring forward the clock because of worry on mechanical wear to the physical
# clock, postal office refused to spring forward because of disruption to
# business and log-keeping, although they did changed their office hour to
# match rest of the city. So is travel agents, and also weather
# observatory. It is said both time standards had their own supporters in the
# city at the time, those who prefer new time standard would have moved their
# clock while those who prefer the old time standard would keep their clock
# unchange, and there were different clocks that use different time standard
# in the city at the time for people who use different time standard to adjust
# their clock to their preferred time.
#
# a. For the 1940 May 31 spring forward, the essay claim that it was
# coordinared between the international settlement authority and the French
# concession authority and have gathered support from Hong Kong and Xiamen,
# that it would spring forward an hour from May 31 "midnight", and the essay
# claim "Hong Kong government implemented the spring forward in the same time
# on the same date as Shanghai".
#
# b. For the 1940 fall back, it was said that they initially intended to do
# so on September 30 00:59 at night, however they postponed it to October 12
# after discussion with relevant parties. However schools restored to the
# original schedule ten days earlier.
#
# c. For the 1941 spring forward, it is said to start from March 15
# "following the previous year's method", and in addition to that the essay
# cited an announcement in 1941 from the Wang regime which said the Special
# City of Shanghai under Wang regime control will follow the DST rule set by
# the Settlements, irrespective of the original DST plan announced by the Wang
# regime for other area under its control(April 1 to September 30). (no idea
# to situation before that announcement)
#
# d. For the 1941 fall back, it was said that the fall back would occurs at
# the end of September (A newspaper headline cited by the essay, published on
# October 1, 1941, have the headlines which said "French Concession would
# rewind to the old clock this morning), but it ultimately didn't happen due
# to disagreement between the international settlement authority and the
# French concession authority, and the fall back ultimately occurred on
# November 1.
#
# e. In 1941 December, Japan have officially started war with the United
# States and the United Kingdom, and in Shanghai they have marched into the
# international settlement, taken over its control
#
# f. For the 1942 spring forward, the essay said that the spring forward
# started on January 31. It said this time the custom office and postal
# department will also change their clocks, unlike before.
#
# g. The essay itself didn't cover any specific changes thereafter until the
# end of the war, it quoted a November 1942 command from the government of the
# Wang regime, which claim the daylight saving time applies year round during
# the war. However, the essay ambiguously said the period is "February 1 to
# September 30", which I don't really understand what is the meaning of such
# period in the context of year round implementation here.. More researches
# might be needed to show exactly what happened during that period of time.
# From Phake Nick (2020-04-15):
# According to a Japanese tour bus pamphlet in Nanjing area believed to be
# from around year 1941: http://www.tt-museum.jp/tairiku_0280_nan1941.html ,
# the schedule listed was in the format of Japanese time. Which indicate some
# use of the Japanese time (instead of syncing by DST) might have occurred in
# the Yangtze river delta area during that period of time although the scope
# of such use will need to be investigated to determine.
d575 1
a575 1
# Hong Kong
d585 3
a587 1
# think 3:30 is correct.
d698 1
a698 1
# From Paul Eggert (2020-04-15):
d700 2
a701 2
# https://www.hko.gov.hk/en/gts/time/Summertime.htm
# as of 2020-02-10:
a1830 41
# From Paul Eggert (2020-01-19):
# Starting in the 7th century, Japan generally followed an ancient Chinese
# timekeeping system that divided night and day into six hours each,
# with hour length depending on season. In 1873 the government
# started requiring the use of a Western style 24-hour clock. See:
# Yulia Frumer, "Making Time: Astronomical Time Measurement in Tokugawa Japan"
# . As the tzdb code and
# data support only 24-hour clocks, its tables model timestamps before
# 1873 using Western-style local mean time.
# From Hideyuki Suzuki (1998-11-09):
# 'Tokyo' usually stands for the former location of Tokyo Astronomical
# Observatory: 139° 44' 40.90" E (9h 18m 58.727s), 35° 39' 16.0" N.
# This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996'
# edited by National Astronomical Observatory of Japan....
# JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST).
# The law is enacted on 1886-07-07.
# From Hideyuki Suzuki (1998-11-16):
# The ordinance No. 51 (1886) established "standard time" in Japan,
# which stands for the time on 135° E.
# In the ordinance No. 167 (1895), "standard time" was renamed to "central
# standard time". And the same ordinance also established "western standard
# time", which stands for the time on 120° E.... But "western standard
# time" was abolished in the ordinance No. 529 (1937). In the ordinance No.
# 167, there is no mention regarding for what place western standard time is
# standard....
#
# I wrote "ordinance" above, but I don't know how to translate.
# In Japanese it's "chokurei", which means ordinance from emperor.
# From Yu-Cheng Chuang (2013-07-12):
# ...the Meiji Emperor announced Ordinance No. 167 of Meiji Year 28 "The clause
# about standard time" ... The adoption began from Jan 1, 1896.
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
#
# ...the Showa Emperor announced Ordinance No. 529 of Showa Year 12 ... which
# means the whole Japan territory, including later occupations, adopt Japan
# Central Time (UT+9). The adoption began on Oct 1, 1937.
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
d1879 31
d3089 10
d3101 4
a3104 1
# Palestine summer time will start on Mar 24th 2018 ...
d3114 2
a3119 4
# From Sharef Mustafa (2019-10-18):
# Palestine summer time will end on midnight Oct 26th 2019 ...
# http://www.palestinecabinet.gov.ps/website/ar/ViewDetails?ID=43948
a3122 3
#
# From Tim Parenti (2016-10-19):
# Predict fall transitions on October's last Saturday at 01:00 from now on.
@
1.1.1.26
log
@Import tzdata2020b from ftp://ftp.iana.org/tz/releases/tzdata2020b.tar.gz
Summary of changes in tzdata2020b (2020-10-06 18:35:04 -0700):
Revised predictions for Morocco's changes starting in 2023.
Canada's Yukon changes to -07 on 2020-11-01, not 2020-03-08.
Macquarie Island has stayed in sync with Tasmania since 2011.
Casey, Antarctica is at +08 in winter and +11 in summer.
@
text
@d73 1
a73 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d117 1
a117 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d143 1
a143 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d230 1
a230 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d306 1
a306 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d402 1
a402 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d465 1
a465 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d849 1
a849 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d976 1
a976 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1102 1
a1102 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1160 1
a1160 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1537 1
a1537 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1679 1
a1679 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
a1701 4
# For more info about the motivation for DST in Israel, see:
# Barak Y. Israel's Daylight Saving Time controversy. Israel Affairs.
# 2020-08-11. https://doi.org/10.1080/13537121.2020.1806564
d1723 1
a1723 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1815 1
a1815 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1831 1
a1831 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1851 1
a1851 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1874 1
a1874 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1896 1
a1896 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d1916 1
a1916 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2016 1
a2016 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2093 1
a2093 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2419 1
a2419 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2475 1
a2475 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2563 1
a2563 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2593 1
a2593 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2738 1
a2738 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d2926 1
a2926 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d3228 1
a3228 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d3328 1
a3328 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
d3476 1
a3476 1
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
@
1.1.1.27
log
@Import tzdata2020d from ftp://ftp.iana.org/tz/releases/tzdata2020d.tar.gz
Summary of changes in tzdata2020d (2020-10-21 11:24:13 -0700):
Palestine ends DST earlier than predicted, on 2020-10-24.
@
text
@d3224 1
d3226 2
a3227 29
# From Steffen Thorsen (2020-10-20):
# Some sources such as these say, and display on clocks, that DST ended at
# midnight last year...
# https://www.amad.ps/ar/post/320006
#
# From Tim Parenti (2020-10-20):
# The report of the Palestinian Cabinet meeting of 2019-10-14 confirms
# a decision on (translated): "The start of the winter time in Palestine, by
# delaying the clock by sixty minutes, starting from midnight on Friday /
# Saturday corresponding to 26/10/2019."
# http://www.palestinecabinet.gov.ps/portal/meeting/details/43948
# From Sharef Mustafa (2020-10-20):
# As per the palestinian cabinet announcement yesterday , the day light saving
# shall [end] on Oct 24th 2020 at 01:00AM by delaying the clock by 60 minutes.
# http://www.palestinecabinet.gov.ps/portal/Meeting/Details/51584
# From Tim Parenti (2020-10-20):
# Predict future fall transitions at 01:00 on the Saturday preceding October's
# last Sunday (i.e., Sat>=24). This is consistent with our predictions since
# 2016, although the time of the change differed slightly in 2019.
# From Pierre Cashon (2020-10-20):
# The summer time this year started on March 28 at 00:00.
# https://wafa.ps/ar_page.aspx?id=GveQNZa872839351758aGveQNZ
# http://www.palestinecabinet.gov.ps/portal/meeting/details/50284
# The winter time in 2015 started on October 23 at 01:00.
# https://wafa.ps/ar_page.aspx?id=CgpCdYa670694628582aCgpCdY
# http://www.palestinecabinet.gov.ps/portal/meeting/details/27583
d3229 2
a3230 3
# From Paul Eggert (2019-04-10):
# For now, guess spring-ahead transitions are at 00:00 on the Saturday
# preceding March's last Sunday (i.e., Sat>=24).
d3246 1
a3246 1
Rule Palestine 2007 only - Sep 13 2:00 0 -
d3249 1
a3249 1
Rule Palestine 2009 only - Sep 4 1:00 0 -
d3258 3
a3260 4
Rule Palestine 2013 only - Sep 27 0:00 0 -
Rule Palestine 2014 only - Oct 24 0:00 0 -
Rule Palestine 2015 only - Mar 28 0:00 1:00 S
Rule Palestine 2015 only - Oct 23 1:00 0 -
d3262 2
a3263 5
Rule Palestine 2016 2018 - Oct Sat>=24 1:00 0 -
Rule Palestine 2019 only - Mar 29 0:00 1:00 S
Rule Palestine 2019 only - Oct Sat>=24 0:00 0 -
Rule Palestine 2020 max - Mar Sat>=24 0:00 1:00 S
Rule Palestine 2020 max - Oct Sat>=24 1:00 0 -
@
1.1.1.28
log
@Import tzdata2020f from ftp://ftp.iana.org/tz/releases/tzdata2020f.tar.gz
Release 2020f - 2020-12-29 00:17:46 -0800
No changes to tzdata, just to a part of the build procedure
not used on NetBSD
Release 2020e - 2020-12-22 15:14:34 -0800
Volgograd switched to Moscow time on 2020-12-27 at 02:00.
Correct many pre-1986 transitions, fixing entries originally
derived from Shanks. The fixes include changes to:
Australia, Bahamas, Bermuda, Belize, Ghana, Israel and Palestine,
Kenya and adjacent, Nigeria and adjacent, Seychelles, Vanuatu
Australia/Currie has been moved to the 'backward' file and its
corrected data moved to the 'backzone' file.
To better match legislation in Turks and Caicos, the 2015 shift to
year-round observance of -04 is now modeled as AST throughout before
returning to Eastern Time with US DST in 2018, rather than as
maintaining EDT until 2015-11-01.
@
text
@d1726 1
a1726 143
# From P Chan (2020-10-27), with corrections:
#
# 1940-1946 Supplement No. 2 to the Palestine Gazette
# # issue page Order No. dated start end note
# 1 1010 729 67 of 1940 1940-05-22 1940-05-31* 1940-09-30* revoked by #2
# 2 1013 758 73 of 1940 1940-05-31 1940-05-31 1940-09-30
# 3 1055 1574 196 of 1940 1940-11-06 1940-11-16 1940-12-31
# 4 1066 1811 208 of 1940 1940-12-17 1940-12-31 1941-12-31
# 5 1156 1967 116 of 1941 1941-12-16 1941-12-31 1942-12-31* amended by #6
# 6 1228 1608 86 of 1942 1942-10-14 1941-12-31 1942-10-31
# 7 1256 279 21 of 1943 1943-03-18 1943-03-31 1943-10-31
# 8 1323 249 19 of 1944 1944-03-13 1944-03-31 1944-10-31
# 9 1402 328 20 of 1945 1945-04-05 1945-04-15 1945-10-31
#10 1487 596 14 of 1946 1946-04-04 1946-04-15 1946-10-31
#
# 1948 Iton Rishmi (Official Gazette of the Provisional Government)
# # issue page dated start end
#11 2 7 1948-05-20 1948-05-22 1948-10-31*
# ^This moved timezone to +04, replaced by #12 from 1948-08-31 24:00 GMT.
#12 17 (Annex B) 84 1948-08-22 1948-08-31 1948-10-31
#
# 1949-2000 Kovetz HaTakanot (Collection of Regulations)
# # issue page dated start end note
#13 6 133 1949-03-23 1949-04-30 1949-10-31
#14 80 755 1950-03-17 1950-04-15 1950-09-14
#15 164 782 1951-03-22 1951-03-31 1951-09-29* amended by #16
#16 206 1940 1951-09-23 ---------- 1951-10-22* amended by #17
#17 212 78 1951-10-19 ---------- 1951-11-10
#18 254 652 1952-03-03 1952-04-19 1952-09-27* amended by #19
#19 300 11 1952-09-15 ---------- 1952-10-18
#20 348 817 1953-03-03 1953-04-11 1953-09-12
#21 420 385 1954-02-17 1954-06-12 1954-09-11
#22 497 548 1955-01-14 1955-06-11 1955-09-10
#23 591 608 1956-03-12 1956-06-02 1956-09-29
#24 680 957 1957-02-08 1957-04-27 1957-09-21
#25 3192 1418 1974-06-28 1974-07-06 1974-10-12
#26 3322 1389 1975-04-03 1975-04-19 1975-08-30
#27 4146 2089 1980-07-15 1980-08-02 1980-09-13
#28 4604 1081 1984-02-22 1984-05-05* 1984-08-25* revoked by #29
#29 4619 1312 1984-04-06 1984-05-05 1984-08-25
#30 4744 475 1984-12-23 1985-04-13 1985-09-14* amended by #31
#31 4851 1848 1985-08-18 ---------- 1985-08-31
#32 4932 899 1986-04-22 1986-05-17 1986-09-06
#33 5013 580 1987-02-15 1987-04-18* 1987-08-22* revoked by #34
#34 5021 744 1987-03-30 1987-04-14 1987-09-12
#35 5096 659 1988-02-14 1988-04-09 1988-09-03
#36 5167 514 1989-02-03 1989-04-29 1989-09-02
#37 5248 375 1990-01-23 1990-03-24 1990-08-25
#38 5335 612 1991-02-10 1991-03-09* 1991-08-31 amended by #39
# 1992-03-28 1992-09-05
#39 5339 709 1991-03-04 1991-03-23 ----------
#40 5506 503 1993-02-18 1993-04-02 1993-09-05
# 1994-04-01 1994-08-28
# 1995-03-31 1995-09-03
#41 5731 438 1996-01-01 1996-03-14 1996-09-15
# 1997-03-13* 1997-09-18* overridden by 1997 Temp Prov
# 1998-03-19* 1998-09-17* revoked by #42
#42 5853 1243 1997-09-18 1998-03-19 1998-09-05
#43 5937 77 1998-10-18 1999-04-02 1999-09-03
# 2000-04-14* 2000-09-15* revoked by #44
# 2001-04-13* 2001-09-14* revoked by #44
#44 6024 39 2000-03-14 2000-04-14 2000-10-22* overridden by 2000 Temp Prov
# 2001-04-06* 2001-10-10* overridden by 2000 Temp Prov
# 2002-03-29* 2002-10-29* overridden by 2000 Temp Prov
#
# These are laws enacted by the Knesset since the Minister could only alter the
# transition dates at least six months in advanced under the 1992 Law.
# dated start end
# 1997 Temporary Provisions 1997-03-06 1997-03-20 1997-09-13
# 2000 Temporary Provisions 2000-07-28 ---------- 2000-10-06
# 2001-04-09 2001-09-24
# 2002-03-29 2002-10-07
# 2003-03-28 2003-10-03
# 2004-04-07 2004-09-22
# Note:
# Transition times in 1940-1957 (#1-#24) were midnight GMT,
# in 1974-1998 (#25-#42 and the 1997 Temporary Provisions) were midnight,
# in 1999-April 2000 (#43,#44) were 02:00,
# in the 2000 Temporary Provisions were 01:00.
#
# -----------------------------------------------------------------------------
# Links:
# 1 https://findit.library.yale.edu/images_layout/view?parentoid=15537490&increment=687
# 2 https://findit.library.yale.edu/images_layout/view?parentoid=15537490&increment=716
# 3 https://findit.library.yale.edu/images_layout/view?parentoid=15537491&increment=721
# 4 https://findit.library.yale.edu/images_layout/view?parentoid=15537491&increment=958
# 5 https://findit.library.yale.edu/images_layout/view?parentoid=15537502&increment=558
# 6 https://findit.library.yale.edu/images_layout/view?parentoid=15537511&increment=105
# 7 https://findit.library.yale.edu/images_layout/view?parentoid=15537516&increment=278
# 8 https://findit.library.yale.edu/images_layout/view?parentoid=15537522&increment=248
# 9 https://findit.library.yale.edu/images_layout/view?parentoid=15537530&increment=329
#10 https://findit.library.yale.edu/images_layout/view?parentoid=15537537&increment=601
#11 https://www.nevo.co.il/law_word/law12/er-002.pdf#page=3
#12 https://www.nevo.co.il/law_word/law12/er-017-t2.pdf#page=4
#13 https://www.nevo.co.il/law_word/law06/tak-0006.pdf#page=3
#14 https://www.nevo.co.il/law_word/law06/tak-0080.pdf#page=7
#15 https://www.nevo.co.il/law_word/law06/tak-0164.pdf#page=10
#16 https://www.nevo.co.il/law_word/law06/tak-0206.pdf#page=4
#17 https://www.nevo.co.il/law_word/law06/tak-0212.pdf#page=2
#18 https://www.nevo.co.il/law_word/law06/tak-0254.pdf#page=4
#19 https://www.nevo.co.il/law_word/law06/tak-0300.pdf#page=5
#20 https://www.nevo.co.il/law_word/law06/tak-0348.pdf#page=3
#21 https://www.nevo.co.il/law_word/law06/tak-0420.pdf#page=5
#22 https://www.nevo.co.il/law_word/law06/tak-0497.pdf#page=10
#23 https://www.nevo.co.il/law_word/law06/tak-0591.pdf#page=6
#24 https://www.nevo.co.il/law_word/law06/tak-0680.pdf#page=3
#25 https://www.nevo.co.il/law_word/law06/tak-3192.pdf#page=2
#26 https://www.nevo.co.il/law_word/law06/tak-3322.pdf#page=5
#27 https://www.nevo.co.il/law_word/law06/tak-4146.pdf#page=2
#28 https://www.nevo.co.il/law_word/law06/tak-4604.pdf#page=7
#29 https://www.nevo.co.il/law_word/law06/tak-4619.pdf#page=2
#30 https://www.nevo.co.il/law_word/law06/tak-4744.pdf#page=11
#31 https://www.nevo.co.il/law_word/law06/tak-4851.pdf#page=2
#32 https://www.nevo.co.il/law_word/law06/tak-4932.pdf#page=19
#33 https://www.nevo.co.il/law_word/law06/tak-5013.pdf#page=8
#34 https://www.nevo.co.il/law_word/law06/tak-5021.pdf#page=8
#35 https://www.nevo.co.il/law_word/law06/tak-5096.pdf#page=3
#36 https://www.nevo.co.il/law_word/law06/tak-5167.pdf#page=2
#37 https://www.nevo.co.il/law_word/law06/tak-5248.pdf#page=7
#38 https://www.nevo.co.il/law_word/law06/tak-5335.pdf#page=6
#39 https://www.nevo.co.il/law_word/law06/tak-5339.pdf#page=7
#40 https://www.nevo.co.il/law_word/law06/tak-5506.pdf#page=19
#41 https://www.nevo.co.il/law_word/law06/tak-5731.pdf#page=2
#42 https://www.nevo.co.il/law_word/law06/tak-5853.pdf#page=3
#43 https://www.nevo.co.il/law_word/law06/tak-5937.pdf#page=9
#44 https://www.nevo.co.il/law_word/law06/tak-6024.pdf#page=4
#
# Time Determination (Temporary Provisions) Law, 1997
# https://www.nevo.co.il/law_html/law19/p201_003.htm
#
# Time Determination (Temporary Provisions) Law, 2000
# https://www.nevo.co.il/law_html/law19/p201_004.htm
#
# Time Determination Law, 1992 and amendments
# https://www.nevo.co.il/law_html/law01/p201_002.htm
# https://main.knesset.gov.il/Activity/Legislation/Laws/Pages/LawPrimary.aspx?lawitemid=2001174
# From Paul Eggert (2020-10-27):
# Several of the midnight transitions mentioned above are ambiguous;
# are they 00:00, 00:00s, 24:00, or 24:00s? When resolving these ambiguities,
# try to minimize changes from previous tzdb versions, for lack of better info.
# Commentary from previous versions is included below, to help explain this.
d1728 32
a1759 30
Rule Zion 1940 only - May 31 24:00u 1:00 D
Rule Zion 1940 only - Sep 30 24:00u 0 S
Rule Zion 1940 only - Nov 16 24:00u 1:00 D
Rule Zion 1942 1946 - Oct 31 24:00u 0 S
Rule Zion 1943 1944 - Mar 31 24:00u 1:00 D
Rule Zion 1945 1946 - Apr 15 24:00u 1:00 D
Rule Zion 1948 only - May 22 24:00u 2:00 DD
Rule Zion 1948 only - Aug 31 24:00u 1:00 D
Rule Zion 1948 1949 - Oct 31 24:00u 0 S
Rule Zion 1949 only - Apr 30 24:00u 1:00 D
Rule Zion 1950 only - Apr 15 24:00u 1:00 D
Rule Zion 1950 only - Sep 14 24:00u 0 S
Rule Zion 1951 only - Mar 31 24:00u 1:00 D
Rule Zion 1951 only - Nov 10 24:00u 0 S
Rule Zion 1952 only - Apr 19 24:00u 1:00 D
Rule Zion 1952 only - Oct 18 24:00u 0 S
Rule Zion 1953 only - Apr 11 24:00u 1:00 D
Rule Zion 1953 only - Sep 12 24:00u 0 S
Rule Zion 1954 only - Jun 12 24:00u 1:00 D
Rule Zion 1954 only - Sep 11 24:00u 0 S
Rule Zion 1955 only - Jun 11 24:00u 1:00 D
Rule Zion 1955 only - Sep 10 24:00u 0 S
Rule Zion 1956 only - Jun 2 24:00u 1:00 D
Rule Zion 1956 only - Sep 29 24:00u 0 S
Rule Zion 1957 only - Apr 27 24:00u 1:00 D
Rule Zion 1957 only - Sep 21 24:00u 0 S
Rule Zion 1974 only - Jul 6 24:00 1:00 D
Rule Zion 1974 only - Oct 12 24:00 0 S
Rule Zion 1975 only - Apr 19 24:00 1:00 D
Rule Zion 1975 only - Aug 30 24:00 0 S
d1772 12
a1783 11
Rule Zion 1980 only - Aug 2 24:00s 1:00 D
Rule Zion 1980 only - Sep 13 24:00s 0 S
Rule Zion 1984 only - May 5 24:00s 1:00 D
Rule Zion 1984 only - Aug 25 24:00s 0 S
Rule Zion 1985 only - Apr 13 24:00 1:00 D
Rule Zion 1985 only - Aug 31 24:00 0 S
Rule Zion 1986 only - May 17 24:00 1:00 D
Rule Zion 1986 only - Sep 6 24:00 0 S
Rule Zion 1987 only - Apr 14 24:00 1:00 D
Rule Zion 1987 only - Sep 12 24:00 0 S
d1789 2
a1790 2
Rule Zion 1988 only - Apr 9 24:00 1:00 D
Rule Zion 1988 only - Sep 3 24:00 0 S
d1820 8
a1827 8
Rule Zion 1989 only - Apr 29 24:00 1:00 D
Rule Zion 1989 only - Sep 2 24:00 0 S
Rule Zion 1990 only - Mar 24 24:00 1:00 D
Rule Zion 1990 only - Aug 25 24:00 0 S
Rule Zion 1991 only - Mar 23 24:00 1:00 D
Rule Zion 1991 only - Aug 31 24:00 0 S
Rule Zion 1992 only - Mar 28 24:00 1:00 D
Rule Zion 1992 only - Sep 5 24:00 0 S
d1856 4
a1859 4
Rule Zion 1996 only - Mar 14 24:00 1:00 D
Rule Zion 1996 only - Sep 15 24:00 0 S
Rule Zion 1997 only - Mar 20 24:00 1:00 D
Rule Zion 1997 only - Sep 13 24:00 0 S
d1911 8
a1918 9
# From Ephraim Silverberg (2020-10-26):
# The current time law (2013) from the State of Israel can be viewed
# (in Hebrew) at:
# ftp://ftp.cs.huji.ac.il/pub/tz/israel/announcements/2013+law.pdf
# It translates to:
# Every year, in the period from the Friday before the last Sunday in
# the month of March at 02:00 a.m. until the last Sunday of the month
# of October at 02:00 a.m., Israel Time will be advanced an additional
# hour such that it will be UTC+3.
@
1.1.1.29
log
@Import tzdata2022agtz
not from ftp://ftp.iana.org/tz/releases/tzdata2022agtz.tar.gz
(2022a comes from ftp://ftp.iana.org/tz/releases/tzdata2022a.tar.gz)
Note that 2022agtz is mechanically derived from 2022a by moving back
zone data from the "backzone" file that had been removed as "redundant"
(because differences to some other zone are all prior to 1970) so that
this pre 1970 data is restored. It isn't necessarily correct in all
cases, but it is usually better than using some other zone's data which
is just as likely to be incorrect for where it applies, and more so elsewhere.
Summary of changes in tzdata2022a (2022-03-15 23:02:01 -0700):
* Palestine will spring forward on 2022-03-27, not 2022-03-26.
* From 1992 through spring 1996, Ukraine's DST transitions were at
02:00 standard time, not at 01:00 UTC.
* Chile's Santiago Mean Time and its LMT precursor have been adjusted
eastward by 1 second to align with past and present law.
* Changes to commentary.
@
text
@d37 3
d156 1
a156 5
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Bahrain 3:22:20 - LMT 1941 Jul 20 # Manamah
3:30 - +0330 1944 Jan 1
4:00 - +04 1972 Jun
3:00 - +03
d284 1
a284 7
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jul 1
7:06:30 - PLMT 1911 May 1
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 2
7:00 - +07
a2236 8
# From Steffen Thorsen (2021-09-24):
# The Jordanian Government announced yesterday that they will start DST
# in February instead of March:
# https://petra.gov.jo/Include/InnerPage.jsp?ID=37683&lang=en&name=en_news (English)
# https://petra.gov.jo/Include/InnerPage.jsp?ID=189969&lang=ar&name=news (Arabic)
# From the Arabic version, it seems to say it would be at midnight
# (assume 24:00) on the last Thursday in February, starting from 2022.
d2267 1
a2267 1
Rule Jordan 2014 2021 - Mar lastThu 24:00 1:00 S
a2268 1
Rule Jordan 2022 max - Feb lastThu 24:00 1:00 S
d2700 1
a2700 3
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Kuwait 3:11:56 - LMT 1950
3:00 - +03
d2703 1
a2703 9
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Vientiane 6:50:24 - LMT 1906 Jul 1
7:06:30 - PLMT 1911 May 1
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 2
7:00 - +07 1947 Apr 1
8:00 - +08 1955 Apr 15
7:00 - +07
d2743 1
a2743 2
# https://web.archive.org/web/20190822231045/http://www.math.nus.edu.sg/~mathelmr/teaching/timezone.html
# This agrees with Singapore since 1905-06-01.
d2933 1
a2933 3
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Muscat 3:54:24 - LMT 1920
4:00 - +04
d3382 5
a3398 15
# From P Chan (2021-10-18):
# http://wafa.ps/Pages/Details/34701
# Palestine winter time will start from midnight 2021-10-29 (Thursday-Friday).
#
# From Heba Hemad, Palestine Ministry of Telecom & IT (2021-10-20):
# ... winter time will begin in Palestine from Friday 10-29, 01:00 AM
# by 60 minutes backwards.
#
# From Tim Parenti (2021-10-25), per Paul Eggert (2021-10-24):
# Guess future fall transitions at 01:00 on the Friday preceding October's
# last Sunday (i.e., Fri>=23), as this is more consistent with recent practice.
# From Heba Hamad (2022-03-10):
# summer time will begin in Palestine from Sunday 03-27-2022, 00:00 AM.
d3433 2
a3434 4
Rule Palestine 2020 2021 - Mar Sat>=24 0:00 1:00 S
Rule Palestine 2020 only - Oct 24 1:00 0 -
Rule Palestine 2021 max - Oct Fri>=23 1:00 0 -
Rule Palestine 2022 max - Mar Sun>=25 0:00 1:00 S
a3502 6
# From P Chan (2021-05-10):
# Here's a fairly comprehensive article in Japanese:
# https://wiki.suikawiki.org/n/Philippine%20Time
# From Paul Eggert (2021-05-10):
# The info in the Japanese table has not been absorbed (yet) below.
d3522 1
d3569 2
d3574 1
a3574 1
# https://web.archive.org/web/20190822231045/http://www.math.nus.edu.sg/~mathelmr/teaching/timezone.html
d3827 2
d3843 1
d3938 1
a3938 4
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Aden 2:59:54 - LMT 1950
3:00 - +03
@
1.1.1.30
log
@Import tzdata2022c from https://github.com/JodaOrg/global-tz/releases/download//2022bgtz/tzdata2022bgtz.tar.gz
Summary of changes in tzdata2022c (2022-08-15 17:47:18 -0700):
* None.
Summary of changes in tzdata2022b (2022-08-10 15:38:32 -0700):
* Chile's 2022 DST start is delayed from September 4 to September 11.
* Iran plans to stop observing DST permanently, after it falls back
on 2022-09-21.
* From fall 1994 through fall 1995, Shanks wrote that Crimea's
DST transitions were at 02:00 standard time, not at 00:00.
* Iran adopted standard time in 1935, not 1946.
* Chile's observance of -04 from 1946-08-29 through 1947-03-31 was
considered DST, not standard time.
* Some old, small clock transitions have been removed, as people at
the time did not change their clocks.
@
text
@d357 6
a362 3
# a. For the 1940 May 31 spring forward, the essay [says] ... "Hong
# Kong government implemented the spring forward in the same time on
# the same date as Shanghai".
d558 1
a558 1
# Milne gives 8:05:43.2 for Xujiahui Observatory time....
a676 1
#STDOFF 8:05:43.2
d688 1
a688 1
# Milne gives 7:36:41.7.
d872 1
a872 2
#STDOFF 7:36:41.7
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 29 17:00u
d1347 1
a1347 1
# civil time was 7:07:12.5.
a1382 1
#STDOFF 7:07:12.5
d1386 1
a1386 1
7:07:12 - BMT 1923 Dec 31 16:40u # Batavia
a1417 105
# From Roozbeh Pournader (2022-05-30):
# Here's an order from the Cabinet to the rest of the government to switch to
# Tehran time, which is mentioned to be already at +03:30:
# https://qavanin.ir/Law/TreeText/180138
# Just in case that goes away, I also saved a copy at archive.org:
# https://web.archive.org/web/20220530111940/https://qavanin.ir/Law/TreeText/180138
# Here's my translation:
#
# "Circular on Matching the Hours of Governmental and Official Circles
# in Provinces
# Approved 1314/03/22 [=1935-06-13]
# According to the ruling of the Honorable Cabinet, it is ordered that from
# now on in all internal provinces of the country, governmental and official
# circles set their time to match Tehran time (three hours and half before
# Greenwich)....
#
# I still haven't found out when Tehran itself switched to +03:30....
#
# From Paul Eggert (2022-06-05):
# Although the above says Tehran was at +03:30 before 1935-06-13, we don't
# know when it switched to +03:30. For now, use 1935-06-13 as the switch date.
# Although most likely wrong, we have no better info.
# From Roozbeh Pournader (2022-06-01):
# This is from Kayhan newspaper, one of the major Iranian newspapers, from
# March 20, 1978, page 2:
#
# "Pull the clocks 60 minutes forward
# As we informed before, from the fourth day of the month Farvardin of the
# new year [=1978-03-24], clocks will be pulled forward, and people's daily
# work and life program will start one hour earlier than the current program.
# On the 1st day of the month Farvardin of this year [=1977-03-21], they had
# pulled the clocks forward by one hour, but in the month of Mehr
# [=1977-09-23], the clocks were pulled back by 30 minutes.
# In this way, from the 4th day of the month Farvardin, clocks will be ahead
# of the previous years by one hour and a half.
# According to the new program, during the night of 4th of Farvardin, when
# the midnight, meaning 24 o'clock is announced, the hands of the clock must
# be pulled forward by one hour and thus consider midnight 1 o'clock in the
# forenoon."
#
# This implies that in September 1977, when the daylight savings time was
# done with, Iran didn't go back to +03:30, but immediately to +04:00.
#
#
# This is from the major Iranian newspaper Ettela'at, dated [1978-08-03]...,
# page 32. It looks like they decided to get the clocks back to +4:00
# just in time for Ramadan that year:
#
# "Tomorrow Night, Pull the Clocks Back by One Hour
# At 1 o'clock in the forenoon of Saturday 14 Mordad [=1978-08-05], the
# clocks will be pulled one hour back and instead of 1 o'clock in the
# forenoon, Radio Iran will announce 24 o'clock.
# This decision was made in the Cabinet of Ministers meeting of 25 Tir
# [=1978-07-16], [...]
# At the beginning of the year 2537 [=March 1978: Iran was using a different
# year number for a few years then, based on the Coronation of Cyrus the
# Great], the country's official time was pulled forward by one hour and now
# the official time is one hour and a half ahead compared to last year,
# because in Farvardin of last year [=March 1977], the official time was
# pulled forward one hour and this continued until the second half of last
# year [=September 1977] until in the second half of last year the official
# time was pulled back half an hour and that half hour still remains."
#
# This matches the time of the true noon published in the newspapers, as they
# clearly go from +05:00 to +04:00 after that date (which happened during a
# long weekend in Iran).
# From Roozbeh Pournader (2022-05-31):
# [Movahedi S. Cultural preconceptions of time: Can we use operational time
# to meddle in God's Time? Comp Stud Soc Hist. 1985;27(3):385-400]
# https://www.jstor.org/stable/178704
# Here's the quotes from the paper:
# 1. '"Iran's official time keeper moved the clock one hour forward as from
# March 22, 1977 (Farvardin 2, 2536) to make maximum use of daylight and save
# in energy consumption. Thus Iran joined such other countries as Britain in
# observing what is known as 'daylight saving.' The proposal was originally
# put forward by the Ministry of Energy, in no way having any influence on
# observing religious ceremonies. Moving time one hour forward in summer
# means that at 11:00 o'clock on March 21, the official time was set as
# midnight March 22. Then September 24 will actually begin one hour later
# than the end of September 23 [...]." Iran's time base thus continued to be
# Greenwich Mean Time plus three and one-half hours (plus four and one-half
# hours in summer).'
#
# The article sources this from Iran Almanac and Book of Facts, 1977, Tehran:
# Echo of Iran, which is on Google Books at
# https://www.google.com/books/edition/Iran_Almanac_and_Book_of_Facts/9ybVAAAAMAAJ.
# (I confirmed it by searching for snippets.)
#
# 2. "After the fall of the shah, the revolutionary government returned to
# daylight-saving time (DST) on 26 May 1979."
#
# This seems to have been announced just one day in advance, on 25 May 1979.
#
# The change in 1977 clearly seems to be the first daylight savings effort in
# Iran. But the article doesn't mention what happened in 1978 (which was
# still during the shah's government), or how things continued in 1979
# onwards (which was during the Islamic Republic).
# From Francis Santoni (2022-06-01):
# for Iran and 1977 the effective change is only 20 october
# (UIT No. 143 17.XI.1977) and not 23 september (UIT No. 141 13.IX.1977).
# UIT is the Operational Bulletin of International Telecommunication Union.
d1452 59
a1510 6
# From Paul Eggert (2022-06-30):
# Go with Pournader for 1935 through spring 1979, and for timestamps
# after August 1991; go with with Shanks & Pottenger for other timestamps.
# Go with Santoni's citation of the UIT for fall 1977, as 20 October 1977
# is 28 Mehr 1356, consistent with the "Mehr" in Pournader's source.
# Assume that the UIT's "1930" is UTC, i.e., 24:00 local time.
a1543 6
# From Ali Mirjamali (2022-05-10):
# Official IR News Agency announcement: irna.ir/xjJ3TT
# ...
# Highlights: DST will be cancelled for the next Iranian year 1402
# (i.e 2023-March-21) and forthcoming years.
#
d1545 2
a1546 8
# Work around a bug in zic 2022a and earlier.
Rule Iran 1910 only - Jan 1 00:00 0 -
#
Rule Iran 1977 only - Mar 21 23:00 1:00 -
Rule Iran 1977 only - Oct 20 24:00 0 -
Rule Iran 1978 only - Mar 24 24:00 1:00 -
Rule Iran 1978 only - Aug 5 01:00 0 -
Rule Iran 1979 only - May 26 24:00 1:00 -
a1547 1
Rule Iran 1980 only - Mar 20 24:00 1:00 -
d1578 74
a1651 2
Rule Iran 2021 2022 - Mar 21 24:00 1:00 -
Rule Iran 2021 2022 - Sep 21 24:00 0 -
d1655 2
a1656 2
3:25:44 - TMT 1935 Jun 13 # Tehran Mean Time
3:30 Iran +0330/+0430 1977 Oct 20 24:00
d2478 3
a2480 3
# (Asia/Qyzylorda) is changing its time zone from UTC+6 to UTC+5
# effective December 21st, 2018....
# http://adilet.zan.kz/rus/docs/P1800000817 (russian language).
d2767 4
a2770 1
# Peninsular Malaysia
a2780 2
#
d3863 1
a3863 1
5:00 1:00 +06 1991 Sep 9 2:00s
d3896 1
a3896 2
# Milne says Tashkent was 4:37:10.8.
#STDOFF 4:37:10.8
d3915 1
a3915 1
# From Paul Eggert (2022-07-27) after a 2014 heads-up from Trần Ngọc Quân:
d3927 2
a3928 2
# the Paris Meridian; for now guess the former and round the exact
# 07:06:30.1333... to 07:06:30.13 as the legal spec used 66 2/3 ms precision.
d3955 1
a3955 2
#STDOFF 7:06:30.13
Zone Asia/Ho_Chi_Minh 7:06:30 - LMT 1906 Jul 1
@
1.1.1.31
log
@Import tzdata2022d from https://github.com/JodaOrg/global-tz/releases/download/2022dgtz/tzdata2022dgtz.tar.gz
Summary of changes in tzdata2022d (2022-09-23 12:02:57 -0700):
* Palestine now springs forward and falls back at 02:00 on the
first Saturday on or after March 24 and October 24, respectively.
* Simplify three Ukraine zones to one, since the post-1970
differences seem to have been imaginary.
This is an update from 2022b to 2022d, there were no tzdata changes in 2022c
@
text
@d1519 2
a1520 2
# for Iran and 1977 the effective change is only 20 October
# (UIT No. 143 17.XI.1977) and not 23 September (UIT No. 141 13.IX.1977).
d3410 4
a3429 12
# From Heba Hamad (2022-08-30):
# winter time will begin in Palestine from Saturday 10-29, 02:00 AM by
# 60 minutes backwards. Also the state of Palestine adopted the summer
# and winter time for the years: 2023,2024,2025,2026 ...
# https://mm.icann.org/pipermail/tz/attachments/20220830/9f024566/Time-0001.pdf
# (2022-08-31): ... the Saturday before the last Sunday in March and October
# at 2:00 AM ,for the years from 2023 to 2026.
# (2022-09-05): https://mtit.pna.ps/Site/New/1453
#
# From Paul Eggert (2022-08-31):
# For now, assume that this rule will also be used after 2026.
d3460 2
a3461 2
Rule Palestine 2016 2018 - Mar Sat<=30 1:00 1:00 S
Rule Palestine 2016 2018 - Oct Sat<=30 1:00 0 -
d3463 2
a3464 2
Rule Palestine 2019 only - Oct Sat<=30 0:00 0 -
Rule Palestine 2020 2021 - Mar Sat<=30 0:00 1:00 S
d3466 2
a3467 4
Rule Palestine 2021 only - Oct 29 1:00 0 -
Rule Palestine 2022 only - Mar 27 0:00 1:00 S
Rule Palestine 2022 max - Oct Sat<=30 2:00 0 -
Rule Palestine 2023 max - Mar Sat<=30 2:00 1:00 S
@
1.1.1.32
log
@Import tzdata2022e from https://github.com/JodaOrg/global-tz/releases/download/2022egtz/tzdata2022egtz.tar.gz
Summary of changes in tzdata2022e (2022-10-11 11:13:02 -0700):
* Jordan and Syria are abandoning the DST regime and are changing to
permanent +03, so they will not fall back from +03 to +02 on
2022-10-28.
* On 1922-01-01 Tijuana adopted standard time at 00:00, not 01:00.
@
text
@a2244 11
# From Issam Al-Zuwairi (2022-10-05):
# The Council of Ministers in Jordan decided Wednesday 5th October 2022,
# that daylight saving time (DST) will be throughout the year....
#
# From Brian Inglis (2022-10-06):
# https://petra.gov.jo/Include/InnerPage.jsp?ID=45567&lang=en&name=en_news
#
# From Paul Eggert (2022-10-05):
# Like Syria, model this as a transition from EEST +03 (DST) to plain +03
# (non-DST) at the point where DST would otherwise have ended.
d2276 2
a2277 2
Rule Jordan 2014 2022 - Oct lastFri 0:00s 0 -
Rule Jordan 2022 only - Feb lastThu 24:00 1:00 S
d2280 1
a2280 2
2:00 Jordan EE%sT 2022 Oct 28 0:00s
3:00 - +03
d3845 2
a3846 9
# From Steffen Thorsen (2022-10-05):
# Syria is adopting year-round DST, starting this autumn....
# From https://www.enabbaladi.net/archives/607812
# "This [the decision] came after the weekly government meeting today,
# Tuesday 4 October ..."
#
# From Paul Eggert (2022-10-05):
# Like Jordan, model this as a transition from EEST +03 (DST) to plain +03
# (non-DST) at the point where DST would otherwise have ended.
d3852 2
a3853 2
Rule Syria 2012 2022 - Mar lastFri 0:00 1:00 S
Rule Syria 2009 2022 - Oct lastFri 0:00 0 -
d3857 1
a3857 2
2:00 Syria EE%sT 2022 Oct 28 0:00
3:00 - +03
@
1.1.1.33
log
@Import tzdata2022f from
https://github.com/JodaOrg/global-tz/releases/download/2022fgtz/tzdata2022fgtz.tar.gz
Summary of changes in tzdata2022f (2022-10-28 18:04:57 -0700):
* Mexico will no longer observe DST after 2022, except for areas
near the US border that continue to observe US DST rules.
* Fiji will not observe DST in 2022/3.
* Simplify four Ontario zones, as most of the post-1970 differences
seem to have been imaginary.
@
text
@d267 1
a267 1
# Myanmar (Burma)
d293 1
a679 1
# Vostok base in Antarctica matches this since 1970.
d683 1
d1186 4
d2718 2
d2736 1
d2767 1
a2767 1
# Malaysia (eastern)
a3585 2
# Japan's year-round bases in Antarctica match this since 1970.
#
a3903 2
#
# The Crozet Is also observe Réunion time; see the 'antarctica' file.
d3926 1
a3926 1
# Vietnam (southern)
d4001 1
@
1.1.1.34
log
@Import tzdata2022g from https://github.com/JodaOrg/global-tz/releases/download/2022ggtz/tzdata2022ggtz.tar.gz
Summary of changes in tzdata2022g (2022-11-29 08:58:31 -0800):
* In the Mexican state of Chihuahua, the border strip near the US
will change to agree with nearby US locations on 2022-11-30.
* Much of Greenland, represented by America/Nuuk, stops observing
winter time after March 2023, so its daylight saving time becomes
standard time.
* Changes for pre-1996 northern Canada (thanks to Chris Walton):
* Merge America/Iqaluit and America/Pangnirtung into the former,
with a backward compatibility link for the latter name.
* Cambridge Bay, Inuvik, Iqaluit, Rankin Inlet, Resolute and
Yellowknife did not observe DST in 1965, and did observe DST
from 1972 through 1979.
* Whitehorse moved from -09 to -08 on 1966-02-27, not 1967-05-28.
* Colombia's 1993 fallback was 02-06 24:00, not 04-04 00:00.
* Singapore's 1981-12-31 change was at 16:00 UTC (23:30 local time),
not 24:00 local time.
Zones added by this update:
America/Ciudad_Juarez
@
text
@d2773 1
a2773 1
7:30 - +0730 1981 Dec 31 16:00u
d3635 1
a3635 1
7:30 - +0730 1981 Dec 31 16:00u
@
1.1.1.35
log
@Import tzdata2023a from https://github.com/JodaOrg/global-tz/releases/download/2023agtz/tzdata2023agtz.tar.gz
Summary of changes in tzdata2023a (2023-03-22 12:39:33 -0700):
* Starting in 2023, Egypt will observe DST from April's last Friday
through October's last Thursday.
* In 2023 Morocco's summer time start transition after Ramadan
will occur April 23, not April 30.
* This year Palestine will delay the start of summer time from
March 25 to April 29 due to Ramadan.
* Much of Greenland, represented by America/Nuuk, will continue to
observe DST using European Union rules.
* America/Yellowknife has changed from a Zone to a backward
compatibility Link, as it no longer differs from America/Edmonton
since 1970.
* Changes to commentary.
@
text
@d3007 1
a3007 1
# http://www.dailytimes.com.pk/default.asp?page=2008\05\15\story_15-5-2008_pg1_4
d3330 1
a3330 1
# http://safa.ps/details/news/74352/بدء-التوقيت-الصيفي-بالضفة-وغزة-ليلة-الجمعة.html
d3340 1
a3340 1
# http://safa.ps/details/news/99844/رام-الله-بدء-التوقيت-الصيفي-29-الجاري.html
d3438 3
a3440 35
# From Heba Hamad (2023-03-22):
# ... summer time will begin in Palestine from Saturday 04-29-2023,
# 02:00 AM by 60 minutes forward.
#
# From Paul Eggert (2023-03-22):
# For now, guess that spring and fall transitions will normally
# continue to use 2022's rules, that during DST Palestine will switch
# to standard time at 02:00 the last Saturday before Ramadan and back
# to DST at 02:00 the first Saturday after Ramadan, and that
# if the normal spring-forward or fall-back transition occurs during
# Ramadan the former is delayed and the latter advanced.
# To implement this, I predicted Ramadan-oriented transition dates for
# 2023 through 2086 by running the following program under GNU Emacs 28.2,
# with the results integrated by hand into the table below.
# Predictions after 2086 are approximated without Ramadan.
#
# (let ((islamic-year 1444))
# (require 'cal-islam)
# (while (< islamic-year 1510)
# (let ((a (calendar-islamic-to-absolute (list 9 1 islamic-year)))
# (b (+ 1 (calendar-islamic-to-absolute (list 10 1 islamic-year))))
# (saturday 6))
# (while (/= saturday (mod (setq a (1- a)) 7)))
# (while (/= saturday (mod b 7))
# (setq b (1+ b)))
# (setq a (calendar-gregorian-from-absolute a))
# (setq b (calendar-gregorian-from-absolute b))
# (insert
# (format
# (concat "Rule Palestine\t%d\tonly\t-\t%s\t%2d\t2:00\t0\t-\n"
# "Rule Palestine\t%d\tonly\t-\t%s\t%2d\t2:00\t1:00\tS\n")
# (car (cdr (cdr a))) (calendar-month-name (car a) t) (car (cdr a))
# (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b)))))
# (setq islamic-year (+ 1 islamic-year))))
d3480 2
a3481 80
Rule Palestine 2022 2035 - Oct Sat<=30 2:00 0 -
Rule Palestine 2023 only - Apr 29 2:00 1:00 S
Rule Palestine 2024 only - Apr 13 2:00 1:00 S
Rule Palestine 2025 only - Apr 5 2:00 1:00 S
Rule Palestine 2026 2054 - Mar Sat<=30 2:00 1:00 S
Rule Palestine 2036 only - Oct 18 2:00 0 -
Rule Palestine 2037 only - Oct 10 2:00 0 -
Rule Palestine 2038 only - Sep 25 2:00 0 -
Rule Palestine 2039 only - Sep 17 2:00 0 -
Rule Palestine 2039 only - Oct 22 2:00 1:00 S
Rule Palestine 2039 2067 - Oct Sat<=30 2:00 0 -
Rule Palestine 2040 only - Sep 1 2:00 0 -
Rule Palestine 2040 only - Oct 13 2:00 1:00 S
Rule Palestine 2041 only - Aug 24 2:00 0 -
Rule Palestine 2041 only - Sep 28 2:00 1:00 S
Rule Palestine 2042 only - Aug 16 2:00 0 -
Rule Palestine 2042 only - Sep 20 2:00 1:00 S
Rule Palestine 2043 only - Aug 1 2:00 0 -
Rule Palestine 2043 only - Sep 12 2:00 1:00 S
Rule Palestine 2044 only - Jul 23 2:00 0 -
Rule Palestine 2044 only - Aug 27 2:00 1:00 S
Rule Palestine 2045 only - Jul 15 2:00 0 -
Rule Palestine 2045 only - Aug 19 2:00 1:00 S
Rule Palestine 2046 only - Jun 30 2:00 0 -
Rule Palestine 2046 only - Aug 11 2:00 1:00 S
Rule Palestine 2047 only - Jun 22 2:00 0 -
Rule Palestine 2047 only - Jul 27 2:00 1:00 S
Rule Palestine 2048 only - Jun 6 2:00 0 -
Rule Palestine 2048 only - Jul 18 2:00 1:00 S
Rule Palestine 2049 only - May 29 2:00 0 -
Rule Palestine 2049 only - Jul 3 2:00 1:00 S
Rule Palestine 2050 only - May 21 2:00 0 -
Rule Palestine 2050 only - Jun 25 2:00 1:00 S
Rule Palestine 2051 only - May 6 2:00 0 -
Rule Palestine 2051 only - Jun 17 2:00 1:00 S
Rule Palestine 2052 only - Apr 27 2:00 0 -
Rule Palestine 2052 only - Jun 1 2:00 1:00 S
Rule Palestine 2053 only - Apr 12 2:00 0 -
Rule Palestine 2053 only - May 24 2:00 1:00 S
Rule Palestine 2054 only - Apr 4 2:00 0 -
Rule Palestine 2054 only - May 16 2:00 1:00 S
Rule Palestine 2055 only - May 1 2:00 1:00 S
Rule Palestine 2056 only - Apr 22 2:00 1:00 S
Rule Palestine 2057 only - Apr 7 2:00 1:00 S
Rule Palestine 2058 max - Mar Sat<=30 2:00 1:00 S
Rule Palestine 2068 only - Oct 20 2:00 0 -
Rule Palestine 2069 only - Oct 12 2:00 0 -
Rule Palestine 2070 only - Oct 4 2:00 0 -
Rule Palestine 2071 only - Sep 19 2:00 0 -
Rule Palestine 2072 only - Sep 10 2:00 0 -
Rule Palestine 2072 only - Oct 15 2:00 1:00 S
Rule Palestine 2073 only - Sep 2 2:00 0 -
Rule Palestine 2073 only - Oct 7 2:00 1:00 S
Rule Palestine 2074 only - Aug 18 2:00 0 -
Rule Palestine 2074 only - Sep 29 2:00 1:00 S
Rule Palestine 2075 only - Aug 10 2:00 0 -
Rule Palestine 2075 only - Sep 14 2:00 1:00 S
Rule Palestine 2075 max - Oct Sat<=30 2:00 0 -
Rule Palestine 2076 only - Jul 25 2:00 0 -
Rule Palestine 2076 only - Sep 5 2:00 1:00 S
Rule Palestine 2077 only - Jul 17 2:00 0 -
Rule Palestine 2077 only - Aug 28 2:00 1:00 S
Rule Palestine 2078 only - Jul 9 2:00 0 -
Rule Palestine 2078 only - Aug 13 2:00 1:00 S
Rule Palestine 2079 only - Jun 24 2:00 0 -
Rule Palestine 2079 only - Aug 5 2:00 1:00 S
Rule Palestine 2080 only - Jun 15 2:00 0 -
Rule Palestine 2080 only - Jul 20 2:00 1:00 S
Rule Palestine 2081 only - Jun 7 2:00 0 -
Rule Palestine 2081 only - Jul 12 2:00 1:00 S
Rule Palestine 2082 only - May 23 2:00 0 -
Rule Palestine 2082 only - Jul 4 2:00 1:00 S
Rule Palestine 2083 only - May 15 2:00 0 -
Rule Palestine 2083 only - Jun 19 2:00 1:00 S
Rule Palestine 2084 only - Apr 29 2:00 0 -
Rule Palestine 2084 only - Jun 10 2:00 1:00 S
Rule Palestine 2085 only - Apr 21 2:00 0 -
Rule Palestine 2085 only - Jun 2 2:00 1:00 S
Rule Palestine 2086 only - Apr 13 2:00 0 -
Rule Palestine 2086 only - May 18 2:00 1:00 S
d3682 1
a3682 1
# "SLST" seems to be reasonably recent and rarely used outside time
@
1.1.1.36
log
@Import tzdata2023b from https://github.com/JodaOrg/global-tz/releases/download/2023bgtz/tzdata2023bgtz.tar.gz
Summary of changes in tzdata2023b (2023-03-23 19:50:38 -0700):
* This year Lebanon starts summer time on April 20/21 not March 25/26.
@
text
@a2729 6
#
# From Saadallah Itani (2023-03-23):
# Lebanon too announced today delay of Spring forward from March 25 to April 20.
# From Paul Eggert (2023-03-23):
# https://www.mtv.com.lb/en/News/Local/1352516/lebanon-postpones-daylight-saving-time-adoption
#
d2752 1
a2752 1
Rule Lebanon 1993 2022 - Mar lastSun 0:00 1:00 S
a2754 2
Rule Lebanon 2023 only - Apr 21 0:00 1:00 S
Rule Lebanon 2024 max - Mar lastSun 0:00 1:00 S
@
1.1.1.37
log
@Import tzdata2023c from https://github.com/JodaOrg/global-tz/releases/download/2023cgtz/tzdata2023cgtz.tar.gz
Summary of changes in tzdata2023c (2023-03-28 12:42:14 -0700):
This essentially reverts the 2023b update, as the proposed delay
of the start of summer time in Lebanon didn't end up happening as
intended. What did happen was apparently chaos ... the official
start of summer time was still delayed, but only until last Wednesday
night (between 2023-03-29 and 2029-03-30) - which has already passed.
Since it is unclear what local time was actually observed during
the period between when summer time was originally planned to start
(last Sat night, between 2023-03-25 and 2023-03-26) and when it
officially did, for now, this update simply reverts to the original
start time (2023-03-26 00:00:00 local). Should that turn out to
be sub-optimal, a later update can correct it. Only timestamps
for the period between 2023-03-26 00:00:00 and 2023-03-30 00:00:00
are affected.
@
text
@d2732 2
a2733 4
# Lebanon ... announced today delay of Spring forward from March 25 to April 20.
#
# From Paul Eggert (2023-03-27):
# This announcement was by the Lebanese caretaker prime minister Najib Mikati.
a2734 26
# A video was later leaked to the media of parliament speaker Nabih Berri
# asking Mikati to postpone DST to aid observance of Ramadan, Mikati objecting
# that this would cause problems such as scheduling airline flights, to which
# Berri interjected, "What flights?"
#
# The change was controversial and led to a partly-sectarian divide.
# Many Lebanese institutions, including the education ministry, the Maronite
# church, and two news channels LCBI and MTV, ignored the announcement and
# went ahead with the long-scheduled spring-forward on March 25/26, some
# arguing that the prime minister had not followed the law because the change
# had not been approved by the cabinet. Google went with the announcement;
# Apple ignored it. At least one bank followed the announcement for its doors,
# but ignored the announcement in internal computer systems.
# Beirut international airport listed two times for each departure.
# Dan Azzi wrote "My view is that this whole thing is a Dumb and Dumber movie."
# Eventually the prime minister backed down, said the cabinet had decided to
# stick with its 1998 decision, and that DST would begin midnight March 29/30.
# https://www.nna-leb.gov.lb/en/miscellaneous/604093/lebanon-has-two-times-of-day-amid-daylight-savings
# https://www.cnbc.com/2023/03/27/lebanon-in-two-different-time-zones-as-government-disagrees-on-daylight-savings.html
#
# Although we could model the chaos with two Zones, that would likely cause
# more trouble than it would cure. Since so many manual clocks and
# computer-based timestamps ignored the announcement, stick with official
# cabinet resolutions in the data while recording the prime minister's
# announcement as a comment. This is how we treated a similar situation in
# Rio de Janeiro in spring 1993.
d2758 1
a2758 1
Rule Lebanon 1993 max - Mar lastSun 0:00 1:00 S
d2761 2
a2762 4
# This one-time rule, announced by the prime minister first for April 21
# then for March 30, is commented out for reasons described above.
#Rule Lebanon 2023 only - Mar 30 0:00 1:00 S
@
1.1.1.38
log
@Import tzdata2023d from https://github.com/JodaOrg/global-tz/releases/download/2023dgtz/tzdata2023dgtz.tar.gz
Summary of changes in tzdata2023d (2023-12-21 20:02:24 -0800):
* Ittoqqortoormiit, Greenland (America/Scoresbysund) joins most of
the rest of Greenland's timekeeping practice on 2024-03-31, by
changing its time zone from -01/+00 to -02/-01.
* Fix predictions for DST transitions in Palestine in 2072-2075,
correcting a typo introduced in 2023a.
* Various fixes to zones for several Antarctic bases.
@
text
@d679 1
a3479 3
# From Heba Hemad (2023-10-09):
# ... winter time will begin in Palestine from Saturday 10-28-2023,
# 02:00 AM by 60 minutes back.
a3600 1
Rule Palestine 2072 max - Oct Sat<=30 2:00 0 -
d3607 1
@
1.1.1.39
log
@Import tzdata2024a from https://github.com/JodaOrg/global-tz/releases/download/2024agtz/tzdata2024agtz.tar.gz
Summary of changes in tzdata2024a (2024-02-01 09:28:56 -0800):
* Kazakhstan unifies on UTC+5.
* Palestine summer time begins a week later than previously predicted
in 2024 and 2025.
* Historic corrections for Asia/Ho_Chi_Minh (1955) America/Toronto (1947-9)
and America/Miquelon (1911).
@
text
@a2480 11
# From Zhanbolat Raimbekov (2024-01-19):
# Kazakhstan (all parts) switching to UTC+5 on March 1, 2024
# https://www.gov.kz/memleket/entities/mti/press/news/details/688998?lang=ru
# [in Russian]
# (2024-01-20): https://primeminister.kz/ru/decisions/19012024-20
#
# From Alexander Krivenyshev (2024-01-19):
# According to a different news and the official web site for the Ministry of
# Trade and Integration of the Republic of Kazakhstan:
# https://en.inform.kz/news/kazakhstan-to-switch-to-single-hour-zone-mar-1-54ad0b/
d2484 2
a2485 5
# This includes Abai/Abay (ISO 3166-2 code KZ-10), Aqmola/Akmola (KZ-11),
# Almaty (KZ-19), Almaty city (KZ-75), Astana city (KZ-71),
# East Kazkhstan (KZ-63), Jambyl/Zhambyl (KZ-31), Jetisu/Zhetysu (KZ-33),
# Karaganda (KZ-35), North Kazakhstan (KZ-59), Pavlodar (KZ-55),
# Shyumkent city (KZ-79), Turkistan (KZ-61), and Ulytau (KZ-62).
d2491 2
a2492 3
6:00 - +06 2024 Mar 1 0:00
5:00 - +05
# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.) (KZ-43)
d2505 2
a2506 1
# Qostanay (aka Kostanay, Kustanay) (KZ-39)
d2517 3
a2519 3
6:00 - +06 2024 Mar 1 0:00
5:00 - +05
# Aqtöbe (aka Aktobe, formerly Aktyubinsk) (KZ-15)
d2529 1
a2529 1
# Mangghystaū (KZ-47)
d2541 1
a2541 1
# Atyraū (KZ-23) is like Mangghystaū except it switched from
d2552 1
a2552 1
# West Kazakhstan (KZ-27)
d3483 1
a3483 8
# From Heba Hamad (2024-01-25):
# the summer time for the years 2024,2025 will begin in Palestine
# from Saturday at 02:00 AM by 60 minutes forward as shown below:
# year date
# 2024 2024-04-20
# 2025 2025-04-12
#
# From Paul Eggert (2024-01-25):
d3487 1
a3487 1
# to DST at 02:00 the second Saturday after Ramadan, and that
d3491 1
a3491 1
# 2026 through 2086 by running the following program under GNU Emacs 29.2,
d3495 1
a3495 1
# (let ((islamic-year 1447))
a3503 1
# (setq b (+ 7 b))
d3554 2
a3555 2
Rule Palestine 2024 only - Apr 20 2:00 1:00 S
Rule Palestine 2025 only - Apr 12 2:00 1:00 S
d3561 2
d3564 1
a3564 2
Rule Palestine 2040 only - Oct 20 2:00 1:00 S
Rule Palestine 2040 2067 - Oct Sat<=30 2:00 0 -
d3566 1
a3566 1
Rule Palestine 2041 only - Oct 5 2:00 1:00 S
d3568 1
a3568 1
Rule Palestine 2042 only - Sep 27 2:00 1:00 S
d3570 1
a3570 1
Rule Palestine 2043 only - Sep 19 2:00 1:00 S
d3572 1
a3572 1
Rule Palestine 2044 only - Sep 3 2:00 1:00 S
d3574 1
a3574 1
Rule Palestine 2045 only - Aug 26 2:00 1:00 S
d3576 1
a3576 1
Rule Palestine 2046 only - Aug 18 2:00 1:00 S
d3578 1
a3578 1
Rule Palestine 2047 only - Aug 3 2:00 1:00 S
d3580 1
a3580 1
Rule Palestine 2048 only - Jul 25 2:00 1:00 S
d3582 1
a3582 1
Rule Palestine 2049 only - Jul 10 2:00 1:00 S
d3584 1
a3584 1
Rule Palestine 2050 only - Jul 2 2:00 1:00 S
d3586 1
a3586 1
Rule Palestine 2051 only - Jun 24 2:00 1:00 S
d3588 1
a3588 1
Rule Palestine 2052 only - Jun 8 2:00 1:00 S
d3590 1
a3590 1
Rule Palestine 2053 only - May 31 2:00 1:00 S
d3592 5
a3596 6
Rule Palestine 2054 only - May 23 2:00 1:00 S
Rule Palestine 2055 only - May 8 2:00 1:00 S
Rule Palestine 2056 only - Apr 29 2:00 1:00 S
Rule Palestine 2057 only - Apr 14 2:00 1:00 S
Rule Palestine 2058 only - Apr 6 2:00 1:00 S
Rule Palestine 2059 max - Mar Sat<=30 2:00 1:00 S
d3602 1
a3602 1
Rule Palestine 2072 only - Oct 22 2:00 1:00 S
d3605 1
a3605 1
Rule Palestine 2073 only - Oct 14 2:00 1:00 S
d3607 1
a3607 1
Rule Palestine 2074 only - Oct 6 2:00 1:00 S
d3609 1
a3609 1
Rule Palestine 2075 only - Sep 21 2:00 1:00 S
d3611 1
a3611 1
Rule Palestine 2076 only - Sep 12 2:00 1:00 S
d3613 1
a3613 1
Rule Palestine 2077 only - Sep 4 2:00 1:00 S
d3615 1
a3615 1
Rule Palestine 2078 only - Aug 20 2:00 1:00 S
d3617 1
a3617 1
Rule Palestine 2079 only - Aug 12 2:00 1:00 S
d3619 1
a3619 1
Rule Palestine 2080 only - Jul 27 2:00 1:00 S
d3621 1
a3621 1
Rule Palestine 2081 only - Jul 19 2:00 1:00 S
d3623 1
a3623 1
Rule Palestine 2082 only - Jul 11 2:00 1:00 S
d3625 1
a3625 1
Rule Palestine 2083 only - Jun 26 2:00 1:00 S
d3627 1
a3627 1
Rule Palestine 2084 only - Jun 17 2:00 1:00 S
d3629 1
a3629 1
Rule Palestine 2085 only - Jun 9 2:00 1:00 S
d3631 1
a3631 1
Rule Palestine 2086 only - May 25 2:00 1:00 S
d3659 1
a3659 1
# From Paul Eggert (2024-01-21):
d3667 1
a3667 1
# https://webspace.science.uu.nl/~gent0113/idl/idl_philippines.htm
d4084 1
a4084 2
# From Paul Eggert (2024-01-14) after a 2014 heads-up from Trần Ngọc Quân
# and a 2024-01-14 heads-up from Đoàn Trần Công Danh:
d4114 2
a4115 5
# Hoàng Xuân Hãn: "Lịch và lịch Việt Nam". Tập san Khoa học Xã hội,
# No. 9, Paris, February 1982.
#
# Lê Thành Lân: "Lịch và niên biểu lịch sử hai mươi thế kỷ (0001-2010)",
# NXB Thống kê, Hanoi, 2000.
d4117 2
a4118 2
# Lê Thành Lân: "Lịch hai thế kỷ (1802-2010) và các lịch vĩnh cửu",
# NXB Thuận Hoá, Huế, 1995.
d4120 2
a4121 20
# Here is the decision for the September 1945 transition:
# Võ Nguyên Giáp, Việt Nam Dân Quốc Công Báo, No. 1 (1945-09-29), page 13
# http://baochi.nlv.gov.vn/baochi/cgi-bin/baochi?a=d&d=JwvzO19450929.2.5&dliv=none
# It says that on 1945-09-01 at 24:00, Vietnam moved back two hours, to +07.
# It also mentions a 1945-03-29 decree (by a Japanese Goveror-General)
# to set the time zone to +09, but does not say whether that decree
# merely legalized an earlier change to +09.
#
# July 1955 transition:
# Ngô Đình Diệm, Công Báo Việt Nam, No. 92 (1955-07-02), page 1780-1781
# Ordinance (Dụ) No. 46 (1955-06-25)
# http://ddsnext.crl.edu/titles/32341#?c=0&m=29&s=0&cv=4&r=0&xywh=-89%2C342%2C1724%2C1216
# It says that on 1955-07-01 at 01:00, South Vietnam moved back 1 hour (to +07).
#
# December 1959 transition:
# Ngô Đình Diệm, Công Báo Việt Nam Cộng Hòa, 1960 part 1 (1960-01-02), page 62
# Decree (Sắc lệnh) No. 362-TTP (1959-12-30)
# http://ddsnext.crl.edu/titles/32341#?c=0&m=138&s=0&cv=793&r=0&xywh=-54%2C1504%2C1705%2C1202
# It says that on 1959-12-31 at 23:00, South Vietnam moved forward 1 hour (to +08).
d4129 1
a4129 1
9:00 - +09 1945 Sep 1 24:00
d4131 1
a4131 1
8:00 - +08 1955 Jul 1 01:00
@
1.1.1.40
log
@Import tzdata2024b
from https://github.com/JodaOrg/global-tz/releases/download/2024bgtz/tzdata2024bgtz.tar.gz
Summary of changes in tzdata2024b (2024-09-04 12:27:47 -0700):
* Asia/Choibalsan is now an alias for Asia/Ulaanbaatar rather than
being a separate Zone with differing behavior before April 2008.
* Historical transitions for Mexico have been updated based on
official Mexican decrees.
* Historical transitions for Portugal, represented by Europe/Lisbon,
Atlantic/Azores, and Atlantic/Madeira, have been updated based on a
close reading of old Portuguese legislation, replacing previous data
mainly originating from Whitman and Shanks & Pottenger.
* Changes to documentation.
* Changes to commentary.
None of these changes are significant, so no pullups of this update are planned.
The next update, whenever that occurs, when something that matters alters, is
likely to be pulled up.
@
text
@d86 2
a87 2
4:00 - %z 1945
4:30 - %z
d119 6
a124 6
3:00 - %z 1957 Mar
4:00 RussiaAsia %z 1991 Mar 31 2:00s
3:00 RussiaAsia %z 1995 Sep 24 2:00s
4:00 - %z 1997
4:00 RussiaAsia %z 2011
4:00 Armenia %z
d145 6
a150 6
3:00 - %z 1957 Mar
4:00 RussiaAsia %z 1991 Mar 31 2:00s
3:00 RussiaAsia %z 1992 Sep lastSun 2:00s
4:00 - %z 1996
4:00 EUAsia %z 1997
4:00 Azer %z
d238 5
a242 5
6:30 - %z 1942 May 15
5:30 - %z 1942 Sep
6:30 - %z 1951 Sep 30
6:00 - %z 2009
6:00 Dhaka %z
d247 2
a248 2
5:30 - %z 1987 Oct
6:00 - %z
d258 2
a259 2
5:00 - %z 1996
6:00 - %z
d280 3
a282 3
6:30 - %z 1942 May
9:00 - %z 1945 May 3
6:30 - %z
d680 1
a680 1
6:00 - %z
d1138 1
a1138 1
9:00 Macau %z 1945 Sep 30 24:00
d1181 1
a1181 1
3:00 - %z 2017 Oct 29 1:00u
d1222 9
a1230 9
3:00 - %z 1957 Mar
4:00 RussiaAsia %z 1991 Mar 31 2:00s
3:00 RussiaAsia %z 1992
3:00 E-EurAsia %z 1994 Sep lastSun
4:00 E-EurAsia %z 1996 Oct lastSun
4:00 1:00 %z 1997 Mar lastSun
4:00 E-EurAsia %z 2004 Jun 27
3:00 RussiaAsia %z 2005 Mar lastSun 2:00
4:00 - %z
a1233 7
# From Tim Parenti (2024-07-01):
# The 1912-01-01 transition occurred at 00:00 new time, per the 1911-05-24
# Portuguese decree (see Europe/Lisbon). A provision in article 5(c) of the
# decree prescribed that Timor "will keep counting time in harmony with
# neighboring foreign colonies, [for] as long as they do not adopt the time
# that belongs to them in [the Washington Convention] system."
d1257 5
a1261 5
Zone Asia/Dili 8:22:20 - LMT 1911 Dec 31 16:00u
8:00 - %z 1942 Feb 21 23:00
9:00 - %z 1976 May 3
8:00 - %z 2000 Sep 17 0:00
9:00 - %z
d1327 1
a1327 1
5:30 1:00 %z 1942 May 15
d1329 1
a1329 1
5:30 1:00 %z 1945 Oct 15
d1381 6
a1386 6
7:20 - %z 1932 Nov
7:30 - %z 1942 Mar 23
9:00 - %z 1945 Sep 23
7:30 - %z 1948 May
8:00 - %z 1950 May
7:30 - %z 1964
d1391 5
a1395 5
7:30 - %z 1942 Jan 29
9:00 - %z 1945 Sep 23
7:30 - %z 1948 May
8:00 - %z 1950 May
7:30 - %z 1964
d1401 2
a1402 2
8:00 - %z 1942 Feb 9
9:00 - %z 1945 Sep 23
d1406 2
a1407 2
9:00 - %z 1944 Sep 1
9:30 - %z 1964
d1643 3
a1645 3
3:30 Iran %z 1977 Oct 20 24:00
4:00 Iran %z 1979
3:30 Iran %z
d1688 2
a1689 2
3:00 - %z 1982 May
3:00 Iraq %z
d2286 1
a2286 1
3:00 - %z
d2497 1
a2497 1
# East Kazakhstan (KZ-63), Jambyl/Zhambyl (KZ-31), Jetisu/Zhetysu (KZ-33),
d2499 1
a2499 1
# Shymkent city (KZ-79), Turkistan (KZ-61), and Ulytau (KZ-62).
d2501 6
a2506 6
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00s
5:00 RussiaAsia %z 1992 Jan 19 2:00s
6:00 RussiaAsia %z 2004 Oct 31 2:00s
6:00 - %z 2024 Mar 1 0:00
5:00 - %z
d2509 11
a2519 11
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1991 Sep 29 2:00s
5:00 RussiaAsia %z 1992 Jan 19 2:00s
6:00 RussiaAsia %z 1992 Mar 29 2:00s
5:00 RussiaAsia %z 2004 Oct 31 2:00s
6:00 - %z 2018 Dec 21 0:00
5:00 - %z
d2524 9
a2532 9
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 2004 Oct 31 2:00s
6:00 - %z 2024 Mar 1 0:00
5:00 - %z
d2535 8
a2542 8
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
d2547 8
a2554 8
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 1994 Sep 25 2:00s
4:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
d2558 8
a2565 8
3:00 - %z 1930 Jun 21
5:00 - %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1991 Mar 31 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 1999 Mar 28 2:00s
4:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
d2570 9
a2578 9
3:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1989 Mar 26 2:00s
4:00 RussiaAsia %z 1992 Jan 19 2:00s
5:00 RussiaAsia %z 1992 Mar 29 2:00s
4:00 RussiaAsia %z 2004 Oct 31 2:00s
5:00 - %z
d2599 5
a2603 5
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00s
5:00 RussiaAsia %z 1991 Aug 31 2:00
5:00 Kyrgyz %z 2005 Aug 12
6:00 - %z
d2834 4
a2837 4
7:30 - %z 1933
8:00 NBorneo %z 1942 Feb 16
9:00 - %z 1945 Sep 12
8:00 - %z
d2843 1
a2843 1
5:00 - %z
d2945 3
a2947 31
# From Heitor David Pinto (2024-06-23):
# Sources about time zones in Mongolia seem to list one of two conflicting
# configurations. The first configuration, mentioned in a comment to the TZ
# database in 1999, citing a Mongolian government website, lists the provinces
# of Bayan-Ölgii, Khovd and Uvs in UTC+7, and the rest of the country in
# UTC+8. The second configuration, mentioned in a comment to the database in
# 2001, lists Bayan-Ölgii, Khovd, Uvs, Govi-Altai and Zavkhan in UTC+7, Dornod
# and Sükhbaatar in UTC+9, and the rest of the country in UTC+8.
#
# The first configuration is still mentioned by several Mongolian travel
# agencies:
# https://www.adventurerider.mn/en/page/about_mongolia
# http://www.naturetours.mn/nt/mongolia.php
# https://www.newjuulchin.mn/web/content/7506?unique=fa24a0f6e96e022a3578ee5195ac879638c734ce
#
# It also matches these flight schedules in 2013:
# http://web.archive.org/web/20130722023600/https://www.hunnuair.com/en/timetabled
# The flight times imply that the airports of Uliastai (Zavkhan), Choibalsan
# (Dornod) and Altai (Govi-Altai) are in the same time zone as Ulaanbaatar,
# and Khovd is one hour behind....
#
# The second configuration was mentioned by an official of the Mongolian
# standards agency in an interview in 2014: https://ikon.mn/n/9v6
# And it's still listed by the Mongolian aviation agency:
# https://ais.mn/files/aip/eAIP/2023-12-25/html/eSUP/ZM-eSUP-23-04-en-MN.html
#
# ... I believe that the first configuration is what is actually observed in
# Mongolia and has been so all along, at least since 1999. The second
# configuration closely matches the ideal time zone boundaries at 97.5° E and
# 112.5° E but it doesn't seem to be used in practice.
d2986 2
a2987 2
6:00 - %z 1978
7:00 Mongol %z
d2990 9
a2998 2
7:00 - %z 1978
8:00 Mongol %z
d3003 2
a3004 2
5:30 - %z 1986
5:45 - %z
d3155 4
a3158 4
5:30 - %z 1942 Sep
5:30 1:00 %z 1945 Oct 15
5:30 - %z 1951 Sep 30
5:00 - %z 1971 Mar 26
d3706 1
a3706 1
# From Paul Goyette (2018-06-15) with URLs updated by Guy Harris (2024-02-15):
d3712 2
a3713 2
# [1] https://www.officialgazette.gov.ph/2013/05/15/republic-act-no-10535/
# [2] https://prsd.pagasa.dost.gov.ph/index.php/28-astronomy/302-philippine-standard-time
d3745 2
a3746 2
4:00 - %z 1972 Jun
3:00 - %z
d3794 1
a3794 1
3:00 - %z
d3802 7
a3808 7
7:00 - %z 1933 Jan 1
7:00 0:20 %z 1936 Jan 1
7:20 - %z 1941 Sep 1
7:30 - %z 1942 Feb 16
9:00 - %z 1945 Sep 12
7:30 - %z 1981 Dec 31 16:00u
8:00 - %z
d3866 7
a3872 7
5:30 - %z 1942 Jan 5
5:30 0:30 %z 1942 Sep
5:30 1:00 %z 1945 Oct 16 2:00
5:30 - %z 1996 May 25 0:00
6:30 - %z 1996 Oct 26 0:30
6:00 - %z 2006 Apr 15 0:30
5:30 - %z
d4043 1
a4043 1
3:00 - %z
d4049 4
a4052 4
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00s
5:00 1:00 %z 1991 Sep 9 2:00s
5:00 - %z
d4058 1
a4058 1
7:00 - %z
d4064 4
a4067 4
4:00 - %z 1930 Jun 21
5:00 RussiaAsia %z 1991 Mar 31 2:00
4:00 RussiaAsia %z 1992 Jan 19 2:00
5:00 - %z
d4074 1
a4074 1
4:00 - %z
d4080 6
a4085 6
4:00 - %z 1930 Jun 21
5:00 - %z 1981 Apr 1
5:00 1:00 %z 1981 Oct 1
6:00 - %z 1982 Apr 1
5:00 RussiaAsia %z 1992
5:00 - %z
d4089 4
a4092 4
5:00 - %z 1930 Jun 21
6:00 RussiaAsia %z 1991 Mar 31 2:00
5:00 RussiaAsia %z 1992
5:00 - %z
d4150 1
a4150 1
# It also mentions a 1945-03-29 decree (by a Japanese Governor-General)
d4171 8
a4178 8
7:00 - %z 1942 Dec 31 23:00
8:00 - %z 1945 Mar 14 23:00
9:00 - %z 1945 Sep 1 24:00
7:00 - %z 1947 Apr 1
8:00 - %z 1955 Jul 1 01:00
7:00 - %z 1959 Dec 31 23:00
8:00 - %z 1975 Jun 13
7:00 - %z
@
1.1.1.41
log
@Import tzdata2025a from ftp://ftp.iana.org/tz/releases/tzdata2025a.tar.gz
Summary of changes in tzdata2025a (2025-01-15 10:47:24 -0800):
* Paraguay stopped changing its clocks after the forward
transition on 2024-10-06, so it is now permanently at -03.
* Correct timestamps for the Philippines before 1900, and from 1937
through 1990.
@
text
@d152 7
d261 6
a266 1
# Cocos (Keeling) Islands
d284 9
d2733 15
a2816 1
# Brunei
a2817 1
#
d2822 12
a2833 1
# For peninsular Malaysia see Asia/Singapore.
d3034 5
d3718 1
d3720 13
a3732 63
# From P Chan (2021-05-10):
# Here's a fairly comprehensive article in Japanese:
# https://wiki.suikawiki.org/n/Philippine%20Time
# (2021-05-16):
# According to the references listed in the article,
# the periods that the Philippines (Manila) observed DST or used +9 are:
#
# 1936-10-31 24:00 to 1937-01-15 24:00
# (Proclamation No. 104, Proclamation No. 126)
# 1941-12-15 24:00 to 1945-11-30 24:00
# (Proclamation No. 789, Proclamation No. 20)
# 1954-04-11 24:00 to 1954-06-04 24:00
# (Proclamation No. 13, Proclamation No. 33)
# 1977-03-27 24:00 to 1977-09-21 24:00
# (Proclamation No. 1629, Proclamation No. 1641)
# 1990-05-21 00:00 to 1990-07-28 24:00
# (National Emergency Memorandum Order No. 17, Executive Order No. 415)
#
# Proclamation No. 104 ... October 30, 1936
# https://www.officialgazette.gov.ph/1936/10/30/proclamation-no-104-s-1936/
# Proclamation No. 126 ... January 15, 1937
# https://www.officialgazette.gov.ph/1937/01/15/proclamation-no-126-s-1937/
# Proclamation No. 789 ... December 13, 1941
# https://www.officialgazette.gov.ph/1941/12/13/proclamation-no-789-s-1941/
# Proclamation No. 20 ... November 11, 1945
# https://www.officialgazette.gov.ph/1945/11/11/proclamation-no-20-s-1945/
# Proclamation No. 13 ... April 6, 1954
# https://www.officialgazette.gov.ph/1954/04/06/proclamation-no-13-s-1954/
# Proclamation No. 33 ... June 3, 1954
# https://www.officialgazette.gov.ph/1954/06/03/proclamation-no-33-s-1954/
# Proclamation No. 1629 ... March 25, 1977
# https://www.officialgazette.gov.ph/1977/03/25/proclamation-no-1629-s-1977/
# Proclamation No. 1641 ...May 26, 1977
# https://www.officialgazette.gov.ph/1977/05/26/proclamation-no-1641-s-1977/
# National Emergency Memorandum Order No. 17 ... May 2, 1990
# https://www.officialgazette.gov.ph/1990/05/02/national-emergency-memorandum-order-no-17-s-1990/
# Executive Order No. 415 ... July 20, 1990
# https://www.officialgazette.gov.ph/1990/07/20/executive-order-no-415-s-1990/
#
# During WWII, Proclamation No. 789 fixed two periods of DST. The first period
# was set to continue only until January 31, 1942. But Manila was occupied by
# the Japanese earlier in the month....
#
# For the date of the adoption of standard time, Shank[s] gives 1899-05-11.
# The article is not able to state the basis of that. I guess it was based on
# a US War Department Circular issued on that date.
# https://books.google.com/books?id=JZ1PAAAAYAAJ&pg=RA3-PA8
#
# However, according to other sources, standard time was adopted on
# 1899-09-06. Also, the LMT was GMT+8:03:52
# https://books.google.com/books?id=MOYIAQAAIAAJ&pg=PA521
# https://books.google.com/books?id=lSnqqatpYikC&pg=PA21
#
# From Paul Eggert (2024-09-05):
# The penultimate URL in P Chan's email refers to page 521 of
# Selga M, The Time Service in the Philippines.
# Proc Pan-Pacific Science Congress. Vol. 1 (1923), 519-532.
# It says, "The change from the meridian 120° 58' 04" to the 120th implied a
# change of 3 min. 52s.26 in time; consequently on 6th September, 1899,
# Manila Observatory gave the noon signal 3 min. 52s.26 later than before".
#
# Wikipedia says the US declared Manila liberated on March 4, 1945;
# this doesn't affect clocks, just our time zone abbreviation and DST flag.
d3750 18
a3767 20
# Rule NAME FROM TO - IN ON AT SAVE LETTER/S
Rule Phil 1936 only - Oct 31 24:00 1:00 D
Rule Phil 1937 only - Jan 15 24:00 0 S
Rule Phil 1941 only - Dec 15 24:00 1:00 D
# The following three rules were canceled by Japan:
#Rule Phil 1942 only - Jan 31 24:00 0 S
#Rule Phil 1942 only - Mar 1 0:00 1:00 D
#Rule Phil 1942 only - Jun 30 24:00 0 S
Rule Phil 1945 only - Nov 30 24:00 0 S
Rule Phil 1954 only - Apr 11 24:00 1:00 D
Rule Phil 1954 only - Jun 4 24:00 0 S
Rule Phil 1977 only - Mar 27 24:00 1:00 D
Rule Phil 1977 only - Sep 21 24:00 0 S
Rule Phil 1990 only - May 21 0:00 1:00 D
Rule Phil 1990 only - Jul 28 24:00 0 S
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Manila -15:56:08 - LMT 1844 Dec 31
8:03:52 - LMT 1899 Sep 6 4:00u
8:00 Phil P%sT 1942 Feb 11 24:00
9:00 - JST 1945 Mar 4
a3769 1
# Bahrain
a3775 1
# Kuwait
a3776 1
# Yemen
a4081 3
# Cambodia
# Christmas I
# Laos
a4082 1
# Vietnam (northern)
a4096 3
# Oman
# Réunion
# Seychelles
d4218 6
@
1.1.1.42
log
@Import tzdata2025a from https://github.com/JodaOrg/global-tz/releases/download/2025agtz/tzdata2025agtz.tar.gz
Summary of changes in tzdata2025a (2025-01-15 10:47:24 -0800):
* Paraguay stopped changing its clocks after the forward
transition on 2024-10-06, so it is now permanently at -03.
* Correct timestamps for the Philippines before 1900, and from 1937
through 1990.
@
text
@a151 7
# Bahrain
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Bahrain 3:22:20 - LMT 1941 Jul 20 # Manamah
3:30 - +0330 1944 Jan 1
4:00 - +04 1972 Jun
3:00 - +03
d254 1
a254 6
# Brunei
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
7:30 - +0730 1933
8:00 - +08
a271 9
# Cambodia
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jul 1
7:06:30 - PLMT 1911 May 1
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 2
7:00 - +07
a2711 15
# Kuwait
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Kuwait 3:11:56 - LMT 1950
3:00 - +03
# Laos
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Vientiane 6:50:24 - LMT 1906 Jul 1
7:06:30 - PLMT 1911 May 1
7:00 - +07 1942 Dec 31 23:00
8:00 - +08 1945 Mar 14 23:00
9:00 - +09 1945 Sep 2
7:00 - +07 1947 Apr 1
8:00 - +08 1955 Apr 15
7:00 - +07
d2781 1
d2783 1
d2788 1
a2788 12
# Peninsular Malaysia
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Kuala_Lumpur 6:46:46 - LMT 1901 Jan 1
6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
7:00 - +07 1933 Jan 1
7:00 0:20 +0720 1936 Jan 1
7:20 - +0720 1941 Sep 1
7:30 - +0730 1942 Feb 16
9:00 - +09 1945 Sep 12
7:30 - +0730 1981 Dec 31 16:00u
8:00 - +08
a2988 5
# Oman
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Muscat 3:54:24 - LMT 1920
4:00 - +04
d3771 1
d3778 1
d3780 1
d4086 3
d4090 1
d4105 3
a4228 6
# Yemen
# Zone NAME STDOFF RULES FORMAT [UNTIL]
Zone Asia/Aden 2:59:54 - LMT 1950
3:00 - +03
@
1.1.1.43
log
@Import tzdata2025b
from
https://github.com/JodaOrg/global-tz/releases/download/2025bgtz/tzdata2025bgtz.tar.gz
Summary of changes in tzdata2025b (2025-03-22 13:40:46 -0700):
* Chile's Aysén Region moves from -04/-03 to -03 year-round, joining
Magallanes Region.
* Iran switched from +04 to +0330 on 1978-11-10 at 24:00, not at
year end.
Zones added by this update:
America/Coyhaique
@
text
@a1523 10
# From Roozbeh Pournader (2025-03-18):
# ... the exact time of Iran's transition from +0400 to +0330 ... was Friday
# 1357/8/19 AP=1978-11-10. Here's a newspaper clip from the Ettela'at
# newspaper, dated 1357/8/14 AP=1978-11-05, translated from Persian
# (at https://w.wiki/DUEY):
# Following the government's decision about returning the official time
# to the previous status, the spokesperson for the Ministry of Energy
# announced today: At the hour 24 of Friday 19th of Aban (=1978-11-10),
# the country's time will be pulled back half an hour.
#
d1651 1
a1651 1
4:00 Iran %z 1978 Nov 10 24:00
@
1.1.1.44
log
@Import tzdata2025c
from https://github.com/JodaOrg/global-tz/releases/download/2025cgtz/tzdata2025cgtz.tar.gz
Summary of changes in tzdata2025c (2025-12-10 14:42:37 -0800):
* Baja California agreed with California’s DST rules in 1953 and in
1961 through 1975, instead of observing standard time all year.
* Changes to commentary.
@
text
@d7 3
a9 3
# go ahead and edit the file, and please send any changes to
# the public mailing list tz@@iana.org for general use in the future.
# For more, please see the file CONTRIBUTING in the tz distribution.
@
1.1.1.1.6.1
log
@file asia was added on branch tls-maxphys on 2014-08-20 00:00:20 +0000
@
text
@d1 2791
@
1.1.1.1.6.2
log
@Rebase to HEAD as of a few days ago.
@
text
@a0 2791
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.
# This data is by no means authoritative; if you think you know better,
# go ahead and edit the file (and please send any changes to
# tz@@iana.org for general use in the future).
# From Paul Eggert (2013-08-11):
#
# A good source for time zone historical data outside the U.S. is
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
# San Diego: ACS Publications, Inc. (2003).
#
# Gwillim Law writes that a good source
# for recent time zone data is the International Air Transport
# Association's Standard Schedules Information Manual (IATA SSIM),
# published semiannually. Law sent in several helpful summaries
# of the IATA's data after 1990.
#
# Except where otherwise noted, Shanks & Pottenger is the source for
# entries through 1990, and IATA SSIM is the source for entries afterwards.
#
# Another source occasionally used is Edward W. Whitman, World Time Differences,
# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
# I found in the UCLA library.
#
# For data circa 1899, a common source is:
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
# .
#
# A reliable and entertaining source about time zones is
# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
#
# I invented the abbreviations marked '*' in the following table;
# the rest are from earlier versions of this file, or from other sources.
# Corrections are welcome!
# std dst
# LMT Local Mean Time
# 2:00 EET EEST Eastern European Time
# 2:00 IST IDT Israel
# 3:00 AST ADT Arabia*
# 3:30 IRST IRDT Iran
# 4:00 GST Gulf*
# 5:30 IST India
# 7:00 ICT Indochina*
# 7:00 WIB west Indonesia (Waktu Indonesia Barat)
# 8:00 WITA central Indonesia (Waktu Indonesia Tengah)
# 8:00 CST China
# 8:00 JWST Western Standard Time (Japan, 1896/1937)*
# 9:00 JCST Central Standard Time (Japan, 1896/1937)
# 9:00 WIT east Indonesia (Waktu Indonesia Timur)
# 9:00 JST JDT Japan
# 9:00 KST KDT Korea
# 9:30 ACST Australian Central Standard Time
#
# See the 'europe' file for Russia and Turkey in Asia.
# From Guy Harris:
# Incorporates data for Singapore from Robert Elz' asia 1.1, as well as
# additional information from Tom Yap, Sun Microsystems Intercontinental
# Technical Support (including a page from the Official Airline Guide -
# Worldwide Edition). The names for time zones are guesses.
###############################################################################
# These rules are stolen from the 'europe' file.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule EUAsia 1981 max - Mar lastSun 1:00u 1:00 S
Rule EUAsia 1979 1995 - Sep lastSun 1:00u 0 -
Rule EUAsia 1996 max - Oct lastSun 1:00u 0 -
Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 S
Rule E-EurAsia 1979 1995 - Sep lastSun 0:00 0 -
Rule E-EurAsia 1996 max - Oct lastSun 0:00 0 -
Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 S
Rule RussiaAsia 1981 1983 - Oct 1 0:00 0 -
Rule RussiaAsia 1984 1991 - Sep lastSun 2:00s 0 -
Rule RussiaAsia 1985 1991 - Mar lastSun 2:00s 1:00 S
Rule RussiaAsia 1992 only - Mar lastSat 23:00 1:00 S
Rule RussiaAsia 1992 only - Sep lastSat 23:00 0 -
Rule RussiaAsia 1993 max - Mar lastSun 2:00s 1:00 S
Rule RussiaAsia 1993 1995 - Sep lastSun 2:00s 0 -
Rule RussiaAsia 1996 max - Oct lastSun 2:00s 0 -
# Afghanistan
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kabul 4:36:48 - LMT 1890
4:00 - AFT 1945
4:30 - AFT
# Armenia
# From Paul Eggert (2006-03-22):
# Shanks & Pottenger have Yerevan switching to 3:00 (with Russian DST)
# in spring 1991, then to 4:00 with no DST in fall 1995, then
# readopting Russian DST in 1997. Go with Shanks & Pottenger, even
# when they disagree with others. Edgar Der-Danieliantz
# reported (1996-05-04) that Yerevan probably wouldn't use DST
# in 1996, though it did use DST in 1995. IATA SSIM (1991/1998) reports that
# Armenia switched from 3:00 to 4:00 in 1998 and observed DST after 1991,
# but started switching at 3:00s in 1998.
# From Arthur David Olson (2011-06-15):
# While Russia abandoned DST in 2011, Armenia may choose to
# follow Russia's "old" rules.
# From Alexander Krivenyshev (2012-02-10):
# According to News Armenia, on Feb 9, 2012,
# http://newsarmenia.ru/society/20120209/42609695.html
#
# The Armenia National Assembly adopted final reading of Amendments to the
# Law "On procedure of calculation time on the territory of the Republic of
# Armenia" according to which Armenia [is] abolishing Daylight Saving Time.
# or
# (brief)
# http://www.worldtimezone.com/dst_news/dst_news_armenia03.html
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2
3:00 - YERT 1957 Mar # Yerevan Time
4:00 RussiaAsia YER%sT 1991 Mar 31 2:00s
3:00 1:00 YERST 1991 Sep 23 # independence
3:00 RussiaAsia AM%sT 1995 Sep 24 2:00s
4:00 - AMT 1997
4:00 RussiaAsia AM%sT 2012 Mar 25 2:00s
4:00 - AMT
# Azerbaijan
# From Rustam Aliyev of the Azerbaijan Internet Forum (2005-10-23):
# According to the resolution of Cabinet of Ministers, 1997
# Resolution available at: http://aif.az/docs/daylight_res.pdf
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Azer 1997 max - Mar lastSun 4:00 1:00 S
Rule Azer 1997 max - Oct lastSun 5:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Baku 3:19:24 - LMT 1924 May 2
3:00 - BAKT 1957 Mar # Baku Time
4:00 RussiaAsia BAK%sT 1991 Mar 31 2:00s
3:00 1:00 BAKST 1991 Aug 30 # independence
3:00 RussiaAsia AZ%sT 1992 Sep lastSat 23:00
4:00 - AZT 1996 # Azerbaijan time
4:00 EUAsia AZ%sT 1997
4:00 Azer AZ%sT
# Bahrain
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Bahrain 3:22:20 - LMT 1920 # Manamah
4:00 - GST 1972 Jun
3:00 - AST
# Bangladesh
# From Alexander Krivenyshev (2009-05-13):
# According to newspaper Asian Tribune (May 6, 2009) Bangladesh may introduce
# Daylight Saving Time from June 16 to Sept 30
#
# Bangladesh to introduce daylight saving time likely from June 16
# http://www.asiantribune.com/?q=node/17288
# http://www.worldtimezone.com/dst_news/dst_news_bangladesh02.html
#
# "... Bangladesh government has decided to switch daylight saving time from
# June
# 16 till September 30 in a bid to ensure maximum use of daylight to cope with
# crippling power crisis. "
#
# The switch will remain in effect from June 16 to Sept 30 (2009) but if
# implemented the next year, it will come in force from April 1, 2010
# From Steffen Thorsen (2009-06-02):
# They have finally decided now, but changed the start date to midnight between
# the 19th and 20th, and they have not set the end date yet.
#
# Some sources:
# http://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601
# http://bdnews24.com/details.php?id=85889&cid=2
#
# Our wrap-up:
# http://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html
# From A. N. M. Kamrus Saadat (2009-06-15):
# Finally we've got the official mail regarding DST start time where DST start
# time is mentioned as Jun 19 2009, 23:00 from BTRC (Bangladesh
# Telecommunication Regulatory Commission).
#
# No DST end date has been announced yet.
# From Alexander Krivenyshev (2009-09-25):
# Bangladesh won't go back to Standard Time from October 1, 2009,
# instead it will continue DST measure till the cabinet makes a fresh decision.
#
# Following report by same newspaper-"The Daily Star Friday":
# "DST change awaits cabinet decision-Clock won't go back by 1-hr from Oct 1"
# http://www.thedailystar.net/newDesign/news-details.php?nid=107021
# http://www.worldtimezone.com/dst_news/dst_news_bangladesh04.html
# From Steffen Thorsen (2009-10-13):
# IANS (Indo-Asian News Service) now reports:
# Bangladesh has decided that the clock advanced by an hour to make
# maximum use of daylight hours as an energy saving measure would
# "continue for an indefinite period."
#
# One of many places where it is published:
# http://www.thaindian.com/newsportal/business/bangladesh-to-continue-indefinitely-with-advanced-time_100259987.html
# From Alexander Krivenyshev (2009-12-24):
# According to Bangladesh newspaper "The Daily Star,"
# Bangladesh will change its clock back to Standard Time on Dec 31, 2009.
#
# Clock goes back 1-hr on Dec 31 night.
# http://www.thedailystar.net/newDesign/news-details.php?nid=119228
# http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html
#
# "...The government yesterday decided to put the clock back by one hour
# on December 31 midnight and the new time will continue until March 31,
# 2010 midnight. The decision came at a cabinet meeting at the Prime
# Minister's Office last night..."
# From Alexander Krivenyshev (2010-03-22):
# According to Bangladesh newspaper "The Daily Star,"
# Cabinet cancels Daylight Saving Time
# http://www.thedailystar.net/newDesign/latest_news.php?nid=22817
# http://www.worldtimezone.com/dst_news/dst_news_bangladesh06.html
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Dhaka 2009 only - Jun 19 23:00 1:00 S
Rule Dhaka 2009 only - Dec 31 23:59 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Dhaka 6:01:40 - LMT 1890
5:53:20 - HMT 1941 Oct # Howrah Mean Time?
6:30 - BURT 1942 May 15 # Burma Time
5:30 - IST 1942 Sep
6:30 - BURT 1951 Sep 30
6:00 - DACT 1971 Mar 26 # Dacca Time
6:00 - BDT 2009
6:00 Dhaka BD%sT
# Bhutan
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Thimphu 5:58:36 - LMT 1947 Aug 15 # or Thimbu
5:30 - IST 1987 Oct
6:00 - BTT # Bhutan Time
# British Indian Ocean Territory
# Whitman and the 1995 CIA time zone map say 5:00, but the
# 1997 and later maps say 6:00. Assume the switch occurred in 1996.
# We have no information as to when standard time was introduced;
# assume it occurred in 1907, the same year as Mauritius (which
# then contained the Chagos Archipelago).
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Indian/Chagos 4:49:40 - LMT 1907
5:00 - IOT 1996 # BIOT Time
6:00 - IOT
# Brunei
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
7:30 - BNT 1933
8:00 - BNT
# Burma / Myanmar
# Milne says 6:24:40 was the meridian of the time ball observatory at Rangoon.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Rangoon 6:24:40 - LMT 1880 # or Yangon
6:24:40 - RMT 1920 # Rangoon Mean Time?
6:30 - BURT 1942 May # Burma Time
9:00 - JST 1945 May 3
6:30 - MMT # Myanmar Time
# Cambodia
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jun 9
7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
7:00 - ICT 1912 May
8:00 - ICT 1931 May
7:00 - ICT
# China
# From Guy Harris:
# People's Republic of China. Yes, they really have only one time zone.
# From Bob Devine (1988-01-28):
# No they don't. See TIME mag, 1986-02-17 p.52. Even though
# China is across 4 physical time zones, before Feb 1, 1986 only the
# Peking (Beijing) time zone was recognized. Since that date, China
# has two of 'em - Peking's and Ürümqi (named after the capital of
# the Xinjiang Uyghur Autonomous Region). I don't know about DST for it.
#
# . . .I just deleted the DST table and this editor makes it too
# painful to suck in another copy. So, here is what I have for
# DST start/end dates for Peking's time zone (info from AP):
#
# 1986 May 4 - Sept 14
# 1987 mid-April - ??
# From U. S. Naval Observatory (1989-01-19):
# CHINA 8 H AHEAD OF UTC ALL OF CHINA, INCL TAIWAN
# CHINA 9 H AHEAD OF UTC APR 17 - SEP 10
# From Paul Eggert (2008-02-11):
# Jim Mann, "A clumsy embrace for another western custom: China on daylight
# time - sort of", Los Angeles Times, 1986-05-05 ... [says] that China began
# observing daylight saving time in 1986.
# From Paul Eggert (2014-06-30):
# Shanks & Pottenger have China switching to a single time zone in 1980, but
# this doesn't seem to be correct. They also write that China observed summer
# DST from 1986 through 1991, which seems to match the above commentary, so
# go with them for DST rules as follows:
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Shang 1940 only - Jun 3 0:00 1:00 D
Rule Shang 1940 1941 - Oct 1 0:00 0 S
Rule Shang 1941 only - Mar 16 0:00 1:00 D
Rule PRC 1986 only - May 4 0:00 1:00 D
Rule PRC 1986 1991 - Sep Sun>=11 0:00 0 S
Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
# From Anthony Fok (2001-12-20):
# BTW, I did some research on-line and found some info regarding these five
# historic timezones from some Taiwan websites. And yes, there are official
# Chinese names for these locales (before 1949).
#
# From Jesper Nørgaard Welen (2006-07-14):
# I have investigated the timezones around 1970 on the
# http://www.astro.com/atlas site [with provinces and county
# boundaries summarized below].... A few other exceptions were two
# counties on the Sichuan side of the Xizang-Sichuan border,
# counties Dege and Baiyu which lies on the Sichuan side and are
# therefore supposed to be GMT+7, Xizang region being GMT+6, but Dege
# county is GMT+8 according to astro.com while Baiyu county is GMT+6
# (could be true), for the moment I am assuming that those two
# counties are mistakes in the astro.com data.
# From Paul Eggert (2014-06-30):
# Alois Treindl kindly sent me translations of the following two sources:
#
# (1)
# Guo Qingsheng (National Time-Service Center, CAS, Xi'an 710600, China)
# Beijing Time at the Beginning of the PRC
# China Historical Materials of Science and Technology
# (Zhongguo ke ji shi liao, 中国科技史料), Vol. 24, No. 1 (2003)
# It gives evidence that at the beginning of the PRC, Beijing time was
# officially apparent solar time! However, Guo also says that the
# evidence is dubious, as the relevant institute of astronomy had not
# been taken over by the PRC yet. It's plausible that apparent solar
# time was announced but never implemented, and that people continued
# to use UT+8. As the Shanghai radio station (and I presume the
# observatory) was still under control of French missionaries, it
# could well have ignored any such mandate.
#
# (2)
# Guo Qing-sheng (Shaanxi Astronomical Observatory, CAS, Xi'an 710600, China)
# A Study on the Standard Time Changes for the Past 100 Years in China
# [undated and unknown publication location]
# It says several things:
# * The Qing dynasty used local apparent solar time throughout China.
# * The Republic of China instituted Beijing mean solar time effective
# the official calendar book of 1914.
# * The French Concession in Shanghai set up signal stations in
# French docks in the 1890s, controled by Xujiahui (Zikawei)
# Obervatory and set to local mean time.
# * "From the end of the 19th century" it changed to UT+8.
# * Chinese Customs (by then reduced to a tool of foreign powers)
# eventually standardized on this time for all ports, and it
# became used by railways as well.
# * In 1918 the Central Observatory proposed dividing China into
# five time zones (see below for details). This caught on
# at first only in coastal areas observing UT+8.
# * During WWII all of China was in theory was at UT+7. In practice
# this was ignored in the west, and I presume was ignored in
# Japanese-occupied territory.
# * Japanese-occupied Manchuria was at UT+9, i.e., Japan time.
# * The five-zone plan was resurrected after WWII and officially put into
# place (with some modifications) in March 1948. It's not clear
# how well it was observed in areas under Nationalist control.
# * The People's Liberation Army used UT+8 during the civil war.
#
# An AP article "Shanghai Internat'l Area Little Changed" in the
# Lewiston (ME) Daily Sun (1939-05-29), p 17, said "Even the time is
# different - the occupied districts going by Tokyo time, an hour
# ahead of that prevailing in the rest of Shanghai." Guess that the
# Xujiahui Observatory was under French control and stuck with UT+8.
#
# In earlier versions of this file, China had many separate Zone entries, but
# this was based on what was apparently incorrect data in Shanks & Pottenger.
# This has now been simplified to the two entries Asia/Shanghai and
# Asia/Urumqi, with the others being links for backward compatibility.
# Proposed in 1918 and theoretically in effect until 1949 (although in practice
# mainly observed in coastal areas), the five zones were:
#
# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) UT+8.5
# Asia/Harbin (currently a link to Asia/Shanghai)
# Heilongjiang (except Mohe county), Jilin
#
# Zhongyuan Time ("Central plain Time") UT+8
# Asia/Shanghai
# most of China
# This currently represents most other zones as well,
# as apparently these regions have been the same since 1970.
# Milne gives 8:05:43.2 for Xujiahui Observatory time; round to nearest.
# Guo says Shanghai switched to UT+8 "from the end of the 19th century".
#
# Long-shu Time (probably due to Long and Shu being two names of that area) UT+7
# Asia/Chongqing (currently a link to Asia/Shanghai)
# Guangxi, Guizhou, Hainan, Ningxia, Sichuan, Shaanxi, and Yunnan;
# most of Gansu; west Inner Mongolia; west Qinghai; and the Guangdong
# counties Deqing, Enping, Kaiping, Luoding, Taishan, Xinxing,
# Yangchun, Yangjiang, Yu'nan, and Yunfu.
#
# Xin-zang Time ("Xinjiang-Tibet Time") UT+6
# Asia/Urumqi
# This currently represents Kunlun Time as well,
# as apparently the two regions have been the same since 1970.
# The Gansu counties Aksay, Anxi, Dunhuang, Subei; west Qinghai;
# the Guangdong counties Xuwen, Haikang, Suixi, Lianjiang,
# Zhanjiang, Wuchuan, Huazhou, Gaozhou, Maoming, Dianbai, and Xinyi;
# east Tibet, including Lhasa, Chamdo, Shigaise, Jimsar, Shawan and Hutubi;
# east Xinjiang, including Ürümqi, Turpan, Karamay, Korla, Minfeng, Jinghe,
# Wusu, Qiemo, Xinyan, Wulanwusu, Jinghe, Yumin, Tacheng, Tuoli, Emin,
# Shihezi, Changji, Yanqi, Heshuo, Tuokexun, Tulufan, Shanshan, Hami,
# Fukang, Kuitun, Kumukuli, Miquan, Qitai, and Turfan.
#
# Kunlun Time UT+5.5
# Asia/Kashgar (currently a link to Asia/Urumqi)
# West Tibet, including Pulan, Aheqi, Shufu, Shule;
# West Xinjiang, including Aksu, Atushi, Yining, Hetian, Cele, Luopu, Nileke,
# Zhaosu, Tekesi, Gongliu, Chabuchaer, Huocheng, Bole, Pishan, Suiding,
# and Yarkand.
# From Luther Ma (2009-10-17):
# Almost all (>99.9%) ethnic Chinese (properly ethnic Han) living in
# Xinjiang use Chinese Standard Time. Some are aware of Xinjiang time,
# but have no need of it. All planes, trains, and schools function on
# what is called "Beijing time." When Han make an appointment in Chinese
# they implicitly use Beijing time.
#
# On the other hand, ethnic Uyghurs, who make up about half the
# population of Xinjiang, typically use "Xinjiang time" which is two
# hours behind Beijing time, or UTC +0600. The government of the Xinjiang
# Uyghur Autonomous Region, (XAUR, or just Xinjiang for short) as well as
# local governments such as the Ürümqi city government use both times in
# publications, referring to what is popularly called Xinjiang time as
# "Ürümqi time." When Uyghurs make an appointment in the Uyghur language
# they almost invariably use Xinjiang time.
#
# (Their ethnic Han compatriots would typically have no clue of its
# widespread use, however, because so extremely few of them are fluent in
# Uyghur, comparable to the number of Anglo-Americans fluent in Navajo.)
#
# (...As with the rest of China there was a brief interval ending in 1990
# or 1991 when summer time was in use. The confusion was severe, with
# the province not having dual times but four times in use at the same
# time. Some areas remained on standard Xinjiang time or Beijing time and
# others moving their clocks ahead.)
# From Luther Ma (2009-11-19):
# With the risk of being redundant to previous answers these are the most common
# English "transliterations" (w/o using non-English symbols):
#
# 1. Wulumuqi...
# 2. Kashi...
# 3. Urumqi...
# 4. Kashgar...
# ...
# 5. It seems that Uyghurs in Ürümqi has been using Xinjiang since at least the
# 1960's. I know of one Han, now over 50, who grew up in the surrounding
# countryside and used Xinjiang time as a child.
#
# 6. Likewise for Kashgar and the rest of south Xinjiang I don't know of any
# start date for Xinjiang time.
#
# Without having access to local historical records, nor the ability to legally
# publish them, I would go with October 1, 1949, when Xinjiang became the Uyghur
# Autonomous Region under the PRC. (Before that Uyghurs, of course, would also
# not be using Beijing time, but some local time.)
# From David Cochrane (2014-03-26):
# Just a confirmation that Ürümqi time was implemented in Ürümqi on 1 Feb 1986:
# http://content.time.com/time/magazine/article/0,9171,960684,00.html
# From Luther Ma (2014-04-22):
# I have interviewed numerous people of various nationalities and from
# different localities in Xinjiang and can confirm the information in Guo's
# report regarding Xinjiang, as well as the Time article reference by David
# Cochrane. Whether officially recognized or not (and both are officially
# recognized), two separate times have been in use in Xinjiang since at least
# the Cultural Revolution: Xinjiang Time (XJT), aka Ürümqi Time or local time;
# and Beijing Time. There is no confusion in Xinjiang as to which name refers
# to which time. Both are widely used in the province, although in some
# population groups might be use one to the exclusion of the other. The only
# problem is that computers and smart phones list Ürümqi (or Kashgar) as
# having the same time as Beijing.
# From Paul Eggert (2014-06-30):
# In the early days of the PRC, Tibet was given its own time zone (UT+6) but
# this was withdrawn in 1959 and never reinstated; see Tubten Khétsun,
# Memories of life in Lhasa under Chinese Rule, Columbia U Press, ISBN
# 978-0231142861 (2008), translator's introduction by Matthew Akester, p x.
# As this is before our 1970 cutoff, Tibet doesn't need a separate zone.
#
# Xinjiang Time is well-documented as being officially recognized. E.g., see
# "The Working-Calendar for The Xinjiang Uygur Autonomous Region Government"
# (2014-04-22).
# Unfortunately, we have no good records of time in Xinjiang before 1986.
# During the 20th century parts of Xinjiang were ruled by the Qing dyansty,
# the Republic of China, various warlords, the First and Second East Turkestan
# Republics, the Soviet Union, the Kuomintang, and the People's Republic of
# China, and tracking down all these organizations' timekeeping rules would be
# quite a trick. Approximate this lost history by a transition from LMT to
# XJT at the start of 1928, the year of accession of the warlord Jin Shuren,
# which happens to be the date given by Shanks & Pottenger (no doubt as a
# guess) as the transition from LMT. Ignore the usage of UT+8 before
# 1986-02-01 under the theory that the transition date to UT+8 is unknown and
# that the sort of users who prefer Asia/Urumqi now typically ignored the
# UT+8 mandate back then.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
# Beijing time, used throughout China; represented by Shanghai.
Zone Asia/Shanghai 8:05:43 - LMT 1901
8:00 Shang C%sT 1949
8:00 PRC C%sT
# Xinjiang time, used by many in western China; represented by Ürümqi / Ürümchi
# / Wulumuqi. (Please use Asia/Shanghai if you prefer Beijing time.)
Zone Asia/Urumqi 5:50:20 - LMT 1928
6:00 - XJT
# Hong Kong (Xianggang)
# Milne gives 7:36:41.7; round this.
# From Lee Yiu Chung (2009-10-24):
# I found there are some mistakes for the...DST rule for Hong
# Kong. [According] to the DST record from Hong Kong Observatory (actually,
# it is not [an] observatory, but the official meteorological agency of HK,
# and also serves as the official timing agency), there are some missing
# and incorrect rules. Although the exact switch over time is missing, I
# think 3:30 is correct. The official DST record for Hong Kong can be
# obtained from
# http://www.hko.gov.hk/gts/time/Summertime.htm
# From Arthur David Olson (2009-10-28):
# Here are the dates given at
# http://www.hko.gov.hk/gts/time/Summertime.htm
# as of 2009-10-28:
# Year Period
# 1941 1 Apr to 30 Sep
# 1942 Whole year
# 1943 Whole year
# 1944 Whole year
# 1945 Whole year
# 1946 20 Apr to 1 Dec
# 1947 13 Apr to 30 Dec
# 1948 2 May to 31 Oct
# 1949 3 Apr to 30 Oct
# 1950 2 Apr to 29 Oct
# 1951 1 Apr to 28 Oct
# 1952 6 Apr to 25 Oct
# 1953 5 Apr to 1 Nov
# 1954 21 Mar to 31 Oct
# 1955 20 Mar to 6 Nov
# 1956 18 Mar to 4 Nov
# 1957 24 Mar to 3 Nov
# 1958 23 Mar to 2 Nov
# 1959 22 Mar to 1 Nov
# 1960 20 Mar to 6 Nov
# 1961 19 Mar to 5 Nov
# 1962 18 Mar to 4 Nov
# 1963 24 Mar to 3 Nov
# 1964 22 Mar to 1 Nov
# 1965 18 Apr to 17 Oct
# 1966 17 Apr to 16 Oct
# 1967 16 Apr to 22 Oct
# 1968 21 Apr to 20 Oct
# 1969 20 Apr to 19 Oct
# 1970 19 Apr to 18 Oct
# 1971 18 Apr to 17 Oct
# 1972 16 Apr to 22 Oct
# 1973 22 Apr to 21 Oct
# 1973/74 30 Dec 73 to 20 Oct 74
# 1975 20 Apr to 19 Oct
# 1976 18 Apr to 17 Oct
# 1977 Nil
# 1978 Nil
# 1979 13 May to 21 Oct
# 1980 to Now Nil
# The page does not give start or end times of day.
# The page does not give a start date for 1942.
# The page does not givw an end date for 1945.
# The Japanese occupation of Hong Kong began on 1941-12-25.
# The Japanese surrender of Hong Kong was signed 1945-09-15.
# For lack of anything better, use start of those days as the transition times.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule HK 1941 only - Apr 1 3:30 1:00 S
Rule HK 1941 only - Sep 30 3:30 0 -
Rule HK 1946 only - Apr 20 3:30 1:00 S
Rule HK 1946 only - Dec 1 3:30 0 -
Rule HK 1947 only - Apr 13 3:30 1:00 S
Rule HK 1947 only - Dec 30 3:30 0 -
Rule HK 1948 only - May 2 3:30 1:00 S
Rule HK 1948 1951 - Oct lastSun 3:30 0 -
Rule HK 1952 only - Oct 25 3:30 0 -
Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S
Rule HK 1953 only - Nov 1 3:30 0 -
Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S
Rule HK 1954 only - Oct 31 3:30 0 -
Rule HK 1955 1964 - Nov Sun>=1 3:30 0 -
Rule HK 1965 1976 - Apr Sun>=16 3:30 1:00 S
Rule HK 1965 1976 - Oct Sun>=16 3:30 0 -
Rule HK 1973 only - Dec 30 3:30 1:00 S
Rule HK 1979 only - May Sun>=8 3:30 1:00 S
Rule HK 1979 only - Oct Sun>=16 3:30 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30
8:00 HK HK%sT 1941 Dec 25
9:00 - JST 1945 Sep 15
8:00 HK HK%sT
###############################################################################
# Taiwan
# From smallufo (2010-04-03):
# According to Taiwan's CWB [Central Weather Bureau],
# http://www.cwb.gov.tw/V6/astronomy/cdata/summert.htm
# Taipei has DST in 1979 between July 1st and Sep 30.
# From Yu-Cheng Chuang (2013-07-12):
# On Dec 28, 1895, the Meiji Emperor announced Ordinance No. 167 of
# Meiji Year 28 "The clause about standard time", mentioned that
# Taiwan and Penghu Islands, as well as Yaeyama and Miyako Islands
# (both in Okinawa) adopt the Western Standard Time which is based on
# 120E. The adoption began from Jan 1, 1896. The original text can be
# found on Wikisource:
# http://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
# ... This could be the first adoption of time zone in Taiwan, because
# during the Qing Dynasty, it seems that there was no time zone
# declared officially.
#
# Later, in the beginning of World War II, on Sep 25, 1937, the Showa
# Emperor announced Ordinance No. 529 of Showa Year 12 "The clause of
# revision in the ordinance No. 167 of Meiji year 28 about standard
# time", in which abolished the adoption of Western Standard Time in
# western islands (listed above), which means the whole Japan
# territory, including later occupations, adopt Japan Central Time
# (UTC+9). The adoption began on Oct 1, 1937. The original text can
# be found on Wikisource:
# http://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
#
# That is, the time zone of Taipei switched to UTC+9 on Oct 1, 1937.
# From Yu-Cheng Chuang (2014-07-02):
# I've found more evidence about when the time zone was switched from UTC+9
# back to UTC+8 after WW2. I believe it was on Sep 21, 1945. In a document
# during Japanese era [1] in which the officer told the staff to change time
# zone back to Western Standard Time (UTC+8) on Sep 21. And in another
# history page of National Cheng Kung University [2], on Sep 21 there is a
# note "from today, switch back to Western Standard Time". From these two
# materials, I believe that the time zone change happened on Sep 21. And
# today I have found another monthly journal called "The Astronomical Herald"
# from The Astronomical Society of Japan [3] in which it mentioned the fact
# that:
#
# 1. Standard Time of the Country (Japan) was adopted on Jan 1, 1888, using
# the time at 135E (GMT+9)
#
# 2. Standard Time of the Country was renamed to Central Standard Time, on Jan
# 1, 1898, and on the same day, the new territories Taiwan and Penghu islands,
# as well as Yaeyama and Miyako islands, adopted a new time zone called
# Western Standard Time, which is in GMT+8.
#
# 3. Western Standard Time was deprecated on Sep 30, 1937. From then all the
# territories of Japan adopted the same time zone, which is Central Standard
# Time.
#
# [1] Academica Historica, Taiwan:
# http://163.29.208.22:8080/govsaleShowImage/connect_img.php?s=00101738900090036&e=00101738900090037
# [2] Nat'l Cheng Kung University 70th Anniversary Special Site:
# http://www.ncku.edu.tw/~ncku70/menu/001/01_01.htm
# [3] Yukio Niimi, The Standard Time in Japan (1997), p.475:
# http://www.asj.or.jp/geppou/archive_open/1997/pdf/19971001c.pdf
# Yu-Cheng Chuang (2014-07-03):
# I finally have found the real official gazette about changing back to
# Western Standard Time on Sep 21 in Taiwan. It's Taiwan Governor-General
# Bulletin No. 386 in Showa 20 years (1945), published on Sep 19, 1945. [1] ...
# [It] abolishes Bulletin No. 207 in Showa 12 years (1937), which is a local
# bulletin in Taiwan for that Ordinance No. 529. It also mentioned that 1am on
# Sep 21, 1945 will be 12am on Sep 21. I think this bulletin is much more
# official than the one I mentioned in my first mail, because it's from the
# top-level government in Taiwan. If you're going to quote any resource, this
# would be a good one.
# [1] Taiwan Governor-General Gazette, No. 1018, Sep 19, 1945:
# http://db2.th.gov.tw/db2/view/viewImg.php?imgcode=0072031018a&num=19&bgn=019&end=019&otherImg=&type=gener
# From Yu-Cheng Chuang (2014-07-02):
# In 1946, DST in Taiwan was from May 15 and ended on Sep 30. The info from
# Central Weather Bureau website was not correct.
#
# Original Bulletin:
#
# (cont.)
#
# In 1947, DST in Taiwan was expanded to Oct 31. There is a backup of that
# telegram announcement from Taiwan Province Government:
#
#
#
# Here is a brief translation:
#
# The Summer Time this year is adopted from midnight Apr 15 until Sep 20
# midnight. To save (energy?) consumption, we're expanding Summer Time
# adption till Oct 31 midnight.
#
# The Central Weather Bureau website didn't mention that, however it can
# be found from historical government announcement database.
# From Paul Eggert (2014-07-03):
# As per Yu-Cheng Chuang, say that Taiwan was at UT+9 from 1937-10-01
# until 1945-09-21 at 01:00, overriding Shanks & Pottenger.
# Likewise, use Yu-Cheng Chuang's data for DST in Taiwan.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Taiwan 1946 only - May 15 0:00 1:00 D
Rule Taiwan 1946 only - Oct 1 0:00 0 S
Rule Taiwan 1947 only - Apr 15 0:00 1:00 D
Rule Taiwan 1947 only - Nov 1 0:00 0 S
Rule Taiwan 1948 1951 - May 1 0:00 1:00 D
Rule Taiwan 1948 1951 - Oct 1 0:00 0 S
Rule Taiwan 1952 only - Mar 1 0:00 1:00 D
Rule Taiwan 1952 1954 - Nov 1 0:00 0 S
Rule Taiwan 1953 1959 - Apr 1 0:00 1:00 D
Rule Taiwan 1955 1961 - Oct 1 0:00 0 S
Rule Taiwan 1960 1961 - Jun 1 0:00 1:00 D
Rule Taiwan 1974 1975 - Apr 1 0:00 1:00 D
Rule Taiwan 1974 1975 - Oct 1 0:00 0 S
Rule Taiwan 1979 only - Jul 1 0:00 1:00 D
Rule Taiwan 1979 only - Oct 1 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
# Taipei or Taibei or T'ai-pei
Zone Asia/Taipei 8:06:00 - LMT 1896 Jan 1
8:00 - JWST 1937 Oct 1
9:00 - JST 1945 Sep 21 01:00
8:00 Taiwan C%sT
# Macau (Macao, Aomen)
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Macau 1961 1962 - Mar Sun>=16 3:30 1:00 S
Rule Macau 1961 1964 - Nov Sun>=1 3:30 0 -
Rule Macau 1963 only - Mar Sun>=16 0:00 1:00 S
Rule Macau 1964 only - Mar Sun>=16 3:30 1:00 S
Rule Macau 1965 only - Mar Sun>=16 0:00 1:00 S
Rule Macau 1965 only - Oct 31 0:00 0 -
Rule Macau 1966 1971 - Apr Sun>=16 3:30 1:00 S
Rule Macau 1966 1971 - Oct Sun>=16 3:30 0 -
Rule Macau 1972 1974 - Apr Sun>=15 0:00 1:00 S
Rule Macau 1972 1973 - Oct Sun>=15 0:00 0 -
Rule Macau 1974 1977 - Oct Sun>=15 3:30 0 -
Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 S
Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 S
Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Macau 7:34:20 - LMT 1912
8:00 Macau MO%sT 1999 Dec 20 # return to China
8:00 PRC C%sT
###############################################################################
# Cyprus
#
# Milne says the Eastern Telegraph Company used 2:14:00. Stick with LMT.
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Cyprus 1975 only - Apr 13 0:00 1:00 S
Rule Cyprus 1975 only - Oct 12 0:00 0 -
Rule Cyprus 1976 only - May 15 0:00 1:00 S
Rule Cyprus 1976 only - Oct 11 0:00 0 -
Rule Cyprus 1977 1980 - Apr Sun>=1 0:00 1:00 S
Rule Cyprus 1977 only - Sep 25 0:00 0 -
Rule Cyprus 1978 only - Oct 2 0:00 0 -
Rule Cyprus 1979 1997 - Sep lastSun 0:00 0 -
Rule Cyprus 1981 1998 - Mar lastSun 0:00 1:00 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14
2:00 Cyprus EE%sT 1998 Sep
2:00 EUAsia EE%sT
# IATA SSIM (1998-09) has Cyprus using EU rules for the first time.
# Classically, Cyprus belongs to Asia; e.g. see Herodotus, Histories, I.72.
# However, for various reasons many users expect to find it under Europe.
Link Asia/Nicosia Europe/Nicosia
# Georgia
# From Paul Eggert (1994-11-19):
# Today's _Economist_ (p 60) reports that Georgia moved its clocks forward
# an hour recently, due to a law proposed by Zurab Murvanidze,
# an MP who went on a hunger strike for 11 days to force discussion about it!
# We have no details, but we'll guess they didn't move the clocks back in fall.
#
# From Mathew Englander, quoting AP (1996-10-23 13:05-04):
# Instead of putting back clocks at the end of October, Georgia
# will stay on daylight savings time this winter to save energy,
# President Eduard Shevardnadze decreed Wednesday.
#
# From the BBC via Joseph S. Myers (2004-06-27):
#
# Georgia moved closer to Western Europe on Sunday... The former Soviet
# republic has changed its time zone back to that of Moscow. As a result it
# is now just four hours ahead of Greenwich Mean Time, rather than five hours
# ahead. The switch was decreed by the pro-Western president of Georgia,
# Mikheil Saakashvili, who said the change was partly prompted by the process
# of integration into Europe.
# From Teimuraz Abashidze (2005-11-07):
# Government of Georgia ... decided to NOT CHANGE daylight savings time on
# [Oct.] 30, as it was done before during last more than 10 years.
# Currently, we are in fact GMT +4:00, as before 30 October it was GMT
# +3:00.... The problem is, there is NO FORMAL LAW or governmental document
# about it. As far as I can find, I was told, that there is no document,
# because we just DIDN'T ISSUE document about switching to winter time....
# I don't know what can be done, especially knowing that some years ago our
# DST rules where changed THREE TIMES during one month.
# Milne says Tbilisi (Tiflis) time was 2:59:05.7; round to nearest.)
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Tbilisi 2:59:06 - LMT 1880
2:59:06 - TBMT 1924 May 2 # Tbilisi Mean Time
3:00 - TBIT 1957 Mar # Tbilisi Time
4:00 RussiaAsia TBI%sT 1991 Mar 31 2:00s
3:00 1:00 TBIST 1991 Apr 9 # independence
3:00 RussiaAsia GE%sT 1992 # Georgia Time
3:00 E-EurAsia GE%sT 1994 Sep lastSun
4:00 E-EurAsia GE%sT 1996 Oct lastSun
4:00 1:00 GEST 1997 Mar lastSun
4:00 E-EurAsia GE%sT 2004 Jun 27
3:00 RussiaAsia GE%sT 2005 Mar lastSun 2:00
4:00 - GET
# East Timor
# See Indonesia for the 1945 transition.
# From João Carrascalão, brother of the former governor of East Timor, in
# East Timor may be late for its millennium
# (1999-12-26/31):
# Portugal tried to change the time forward in 1974 because the sun
# rises too early but the suggestion raised a lot of problems with the
# Timorese and I still don't think it would work today because it
# conflicts with their way of life.
# From Paul Eggert (2000-12-04):
# We don't have any record of the above attempt.
# Most likely our records are incomplete, but we have no better data.
# From Manoel de Almeida e Silva, Deputy Spokesman for the UN Secretary-General
# http://www.hri.org/news/world/undh/2000/00-08-16.undh.html
# (2000-08-16):
# The Cabinet of the East Timor Transition Administration decided
# today to advance East Timor's time by one hour. The time change,
# which will be permanent, with no seasonal adjustment, will happen at
# midnight on Saturday, September 16.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Dili 8:22:20 - LMT 1912
8:00 - TLT 1942 Feb 21 23:00 # E Timor Time
9:00 - JST 1945 Sep 23
9:00 - TLT 1976 May 3
8:00 - WITA 2000 Sep 17 00:00
9:00 - TLT
# India
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata
5:53:20 - HMT 1941 Oct # Howrah Mean Time?
6:30 - BURT 1942 May 15 # Burma Time
5:30 - IST 1942 Sep
5:30 1:00 IST 1945 Oct 15
5:30 - IST
# The following are like Asia/Kolkata:
# Andaman Is
# Lakshadweep (Laccadive, Minicoy and Amindivi Is)
# Nicobar Is
# Indonesia
#
# From Gwillim Law (2001-05-28), overriding Shanks & Pottenger:
#
# says that Indonesia's time zones changed on 1988-01-01. Looking at some
# time zone maps, I think that must refer to Western Borneo (Kalimantan Barat
# and Kalimantan Tengah) switching from UTC+8 to UTC+7.
#
# From Paul Eggert (2007-03-10):
# Here is another correction to Shanks & Pottenger.
# JohnTWB writes that Japanese forces did not surrender control in
# Indonesia until 1945-09-01 00:00 at the earliest (in Jakarta) and
# other formal surrender ceremonies were September 9, 11, and 13, plus
# September 12 for the regional surrender to Mountbatten in Singapore.
# These would be the earliest possible times for a change.
# Régimes horaires pour le monde entier, by Henri Le Corre, (Éditions
# Traditionnelles, 1987, Paris) says that Java and Madura switched
# from JST to UTC+07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura
# (Hollandia). For now, assume all Indonesian locations other than Jayapura
# switched on 1945-09-23.
#
# From Paul Eggert (2013-08-11):
# Normally the tz database uses English-language abbreviations, but in
# Indonesia it's typical to use Indonesian-language abbreviations even
# when writing in English. For example, see the English-language
# summary published by the Time and Frequency Laboratory of the
# Research Center for Calibration, Instrumentation and Metrology,
# Indonesia, (2006-09-29).
# The abbreviations are:
#
# WIB - UTC+7 - Waktu Indonesia Barat (Indonesia western time)
# WITA - UTC+8 - Waktu Indonesia Tengah (Indonesia central time)
# WIT - UTC+9 - Waktu Indonesia Timur (Indonesia eastern time)
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
# Java, Sumatra
Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10
# Shanks & Pottenger say the next transition was at 1924 Jan 1 0:13,
# but this must be a typo.
7:07:12 - BMT 1923 Dec 31 23:47:12 # Batavia
7:20 - JAVT 1932 Nov # Java Time
7:30 - WIB 1942 Mar 23
9:00 - JST 1945 Sep 23
7:30 - WIB 1948 May
8:00 - WIB 1950 May
7:30 - WIB 1964
7:00 - WIB
# west and central Borneo
Zone Asia/Pontianak 7:17:20 - LMT 1908 May
7:17:20 - PMT 1932 Nov # Pontianak MT
7:30 - WIB 1942 Jan 29
9:00 - JST 1945 Sep 23
7:30 - WIB 1948 May
8:00 - WIB 1950 May
7:30 - WIB 1964
8:00 - WITA 1988 Jan 1
7:00 - WIB
# Sulawesi, Lesser Sundas, east and south Borneo
Zone Asia/Makassar 7:57:36 - LMT 1920
7:57:36 - MMT 1932 Nov # Macassar MT
8:00 - WITA 1942 Feb 9
9:00 - JST 1945 Sep 23
8:00 - WITA
# Maluku Islands, West Papua, Papua
Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov
9:00 - WIT 1944 Sep 1
9:30 - ACST 1964
9:00 - WIT
# Iran
# From Roozbeh Pournader (2003-03-15):
# This is an English translation of what I just found (originally in Persian).
# The Gregorian dates in brackets are mine:
#
# Official Newspaper No. 13548-1370/6/25 [1991-09-16]
# No. 16760/T233 H 1370/6/10 [1991-09-01]
#
# The Rule About Change of the Official Time of the Country
#
# The Board of Ministers, in the meeting dated 1370/5/23 [1991-08-14],
# based on the suggestion number 2221/D dated 1370/4/22 [1991-07-13]
# of the Country's Organization for Official and Employment Affairs,
# and referring to the law for equating the working hours of workers
# and officers in the whole country dated 1359/4/23 [1980-07-14], and
# for synchronizing the official times of the country, agreed that:
#
# The official time of the country will should move forward one hour
# at the 24[:00] hours of the first day of Farvardin and should return
# to its previous state at the 24[:00] hours of the 30th day of
# Shahrivar.
#
# First Deputy to the President - Hassan Habibi
#
# From personal experience, that agrees with what has been followed
# for at least the last 5 years. Before that, for a few years, the
# date used was the first Thursday night of Farvardin and the last
# Thursday night of Shahrivar, but I can't give exact dates....
# I have also changed the abbreviations to what is considered correct
# here in Iran, IRST for regular time and IRDT for daylight saving time.
#
# From Roozbeh Pournader (2005-04-05):
# The text of the Iranian law, in effect since 1925, clearly mentions
# that the true solar year is the measure, and there is no arithmetic
# leap year calculation involved. There has never been any serious
# plan to change that law....
#
# From Paul Eggert (2006-03-22):
# Go with Shanks & Pottenger before Sept. 1991, and with Pournader thereafter.
# I used Ed Reingold's cal-persia in GNU Emacs 21.2 to check Persian dates,
# stopping after 2037 when 32-bit time_t's overflow.
# That cal-persia used Birashk's approximation, which disagrees with the solar
# calendar predictions for the year 2025, so I corrected those dates by hand.
#
# From Oscar van Vlijmen (2005-03-30), writing about future
# discrepancies between cal-persia and the Iranian calendar:
# For 2091 solar-longitude-after yields 2091-03-20 08:40:07.7 UT for
# the vernal equinox and that gets so close to 12:00 some local
# Iranian time that the definition of the correct location needs to be
# known exactly, amongst other factors. 2157 is even closer:
# 2157-03-20 08:37:15.5 UT. But the Gregorian year 2025 should give
# no interpretation problem whatsoever. By the way, another instant
# in the near future where there will be a discrepancy between
# arithmetical and astronomical Iranian calendars will be in 2058:
# vernal equinox on 2058-03-20 09:03:05.9 UT. The Java version of
# Reingold's/Dershowitz' calculator gives correctly the Gregorian date
# 2058-03-21 for 1 Farvardin 1437 (astronomical).
#
# From Steffen Thorsen (2006-03-22):
# Several of my users have reported that Iran will not observe DST anymore:
# http://www.irna.ir/en/news/view/line-17/0603193812164948.htm
#
# From Reuters (2007-09-16), with a heads-up from Jesper Nørgaard Welen:
# ... the Guardian Council ... approved a law on Sunday to re-introduce
# daylight saving time ...
# http://uk.reuters.com/article/oilRpt/idUKBLA65048420070916
#
# From Roozbeh Pournader (2007-11-05):
# This is quoted from Official Gazette of the Islamic Republic of
# Iran, Volume 63, Number 18242, dated Tuesday 1386/6/24
# [2007-10-16]. I am doing the best translation I can:...
# The official time of the country will be moved forward for one hour
# on the 24 hours of the first day of the month of Farvardin and will
# be changed back to its previous state on the 24 hours of the
# thirtieth day of Shahrivar.
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Iran 1978 1980 - Mar 21 0:00 1:00 D
Rule Iran 1978 only - Oct 21 0:00 0 S
Rule Iran 1979 only - Sep 19 0:00 0 S
Rule Iran 1980 only - Sep 23 0:00 0 S
Rule Iran 1991 only - May 3 0:00 1:00 D
Rule Iran 1992 1995 - Mar 22 0:00 1:00 D
Rule Iran 1991 1995 - Sep 22 0:00 0 S
Rule Iran 1996 only - Mar 21 0:00 1:00 D
Rule Iran 1996 only - Sep 21 0:00 0 S
Rule Iran 1997 1999 - Mar 22 0:00 1:00 D
Rule Iran 1997 1999 - Sep 22 0:00 0 S
Rule Iran 2000 only - Mar 21 0:00 1:00 D
Rule Iran 2000 only - Sep 21 0:00 0 S
Rule Iran 2001 2003 - Mar 22 0:00 1:00 D
Rule Iran 2001 2003 - Sep 22 0:00 0 S
Rule Iran 2004 only - Mar 21 0:00 1:00 D
Rule Iran 2004 only - Sep 21 0:00 0 S
Rule Iran 2005 only - Mar 22 0:00 1:00 D
Rule Iran 2005 only - Sep 22 0:00 0 S
Rule Iran 2008 only - Mar 21 0:00 1:00 D
Rule Iran 2008 only - Sep 21 0:00 0 S
Rule Iran 2009 2011 - Mar 22 0:00 1:00 D
Rule Iran 2009 2011 - Sep 22 0:00 0 S
Rule Iran 2012 only - Mar 21 0:00 1:00 D
Rule Iran 2012 only - Sep 21 0:00 0 S
Rule Iran 2013 2015 - Mar 22 0:00 1:00 D
Rule Iran 2013 2015 - Sep 22 0:00 0 S
Rule Iran 2016 only - Mar 21 0:00 1:00 D
Rule Iran 2016 only - Sep 21 0:00 0 S
Rule Iran 2017 2019 - Mar 22 0:00 1:00 D
Rule Iran 2017 2019 - Sep 22 0:00 0 S
Rule Iran 2020 only - Mar 21 0:00 1:00 D
Rule Iran 2020 only - Sep 21 0:00 0 S
Rule Iran 2021 2023 - Mar 22 0:00 1:00 D
Rule Iran 2021 2023 - Sep 22 0:00 0 S
Rule Iran 2024 only - Mar 21 0:00 1:00 D
Rule Iran 2024 only - Sep 21 0:00 0 S
Rule Iran 2025 2027 - Mar 22 0:00 1:00 D
Rule Iran 2025 2027 - Sep 22 0:00 0 S
Rule Iran 2028 2029 - Mar 21 0:00 1:00 D
Rule Iran 2028 2029 - Sep 21 0:00 0 S
Rule Iran 2030 2031 - Mar 22 0:00 1:00 D
Rule Iran 2030 2031 - Sep 22 0:00 0 S
Rule Iran 2032 2033 - Mar 21 0:00 1:00 D
Rule Iran 2032 2033 - Sep 21 0:00 0 S
Rule Iran 2034 2035 - Mar 22 0:00 1:00 D
Rule Iran 2034 2035 - Sep 22 0:00 0 S
Rule Iran 2036 2037 - Mar 21 0:00 1:00 D
Rule Iran 2036 2037 - Sep 21 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Tehran 3:25:44 - LMT 1916
3:25:44 - TMT 1946 # Tehran Mean Time
3:30 - IRST 1977 Nov
4:00 Iran IR%sT 1979
3:30 Iran IR%sT
# Iraq
#
# From Jonathan Lennox (2000-06-12):
# An article in this week's Economist ("Inside the Saddam-free zone", p. 50 in
# the U.S. edition) on the Iraqi Kurds contains a paragraph:
# "The three northern provinces ... switched their clocks this spring and
# are an hour ahead of Baghdad."
#
# But Rives McDow (2000-06-18) quotes a contact in Iraqi-Kurdistan as follows:
# In the past, some Kurdish nationalists, as a protest to the Iraqi
# Government, did not adhere to daylight saving time. They referred
# to daylight saving as Saddam time. But, as of today, the time zone
# in Iraqi-Kurdistan is on standard time with Baghdad, Iraq.
#
# So we'll ignore the Economist's claim.
# From Steffen Thorsen (2008-03-10):
# The cabinet in Iraq abolished DST last week, according to the following
# news sources (in Arabic):
# http://www.aljeeran.net/wesima_articles/news-20080305-98602.html
# http://www.aswataliraq.info/look/article.tpl?id=2047&IdLanguage=17&IdPublication=4&NrArticle=71743&NrIssue=1&NrSection=10
#
# We have published a short article in English about the change:
# http://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Iraq 1982 only - May 1 0:00 1:00 D
Rule Iraq 1982 1984 - Oct 1 0:00 0 S
Rule Iraq 1983 only - Mar 31 0:00 1:00 D
Rule Iraq 1984 1985 - Apr 1 0:00 1:00 D
Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 S
Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 D
# IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the ':01' is a typo.
# Shanks & Pottenger say Iraq did not observe DST 1992/1997; ignore this.
#
Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 D
Rule Iraq 1991 2007 - Oct 1 3:00s 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Baghdad 2:57:40 - LMT 1890
2:57:36 - BMT 1918 # Baghdad Mean Time?
3:00 - AST 1982 May
3:00 Iraq A%sT
###############################################################################
# Israel
# From Ephraim Silverberg (2001-01-11):
#
# I coined "IST/IDT" circa 1988. Until then there were three
# different abbreviations in use:
#
# JST Jerusalem Standard Time [Danny Braniss, Hebrew University]
# IZT Israel Zonal (sic) Time [Prof. Haim Papo, Technion]
# EEST Eastern Europe Standard Time [used by almost everyone else]
#
# Since timezones should be called by country and not capital cities,
# I ruled out JST. As Israel is in Asia Minor and not Eastern Europe,
# EEST was equally unacceptable. Since "zonal" was not compatible with
# any other timezone abbreviation, I felt that 'IST' was the way to go
# and, indeed, it has received almost universal acceptance in timezone
# settings in Israeli computers.
#
# In any case, I am happy to share timezone abbreviations with India,
# high on my favorite-country list (and not only because my wife's
# family is from India).
# From Shanks & Pottenger:
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 1940 only - Jun 1 0:00 1:00 D
Rule Zion 1942 1944 - Nov 1 0:00 0 S
Rule Zion 1943 only - Apr 1 2:00 1:00 D
Rule Zion 1944 only - Apr 1 0:00 1:00 D
Rule Zion 1945 only - Apr 16 0:00 1:00 D
Rule Zion 1945 only - Nov 1 2:00 0 S
Rule Zion 1946 only - Apr 16 2:00 1:00 D
Rule Zion 1946 only - Nov 1 0:00 0 S
Rule Zion 1948 only - May 23 0:00 2:00 DD
Rule Zion 1948 only - Sep 1 0:00 1:00 D
Rule Zion 1948 1949 - Nov 1 2:00 0 S
Rule Zion 1949 only - May 1 0:00 1:00 D
Rule Zion 1950 only - Apr 16 0:00 1:00 D
Rule Zion 1950 only - Sep 15 3:00 0 S
Rule Zion 1951 only - Apr 1 0:00 1:00 D
Rule Zion 1951 only - Nov 11 3:00 0 S
Rule Zion 1952 only - Apr 20 2:00 1:00 D
Rule Zion 1952 only - Oct 19 3:00 0 S
Rule Zion 1953 only - Apr 12 2:00 1:00 D
Rule Zion 1953 only - Sep 13 3:00 0 S
Rule Zion 1954 only - Jun 13 0:00 1:00 D
Rule Zion 1954 only - Sep 12 0:00 0 S
Rule Zion 1955 only - Jun 11 2:00 1:00 D
Rule Zion 1955 only - Sep 11 0:00 0 S
Rule Zion 1956 only - Jun 3 0:00 1:00 D
Rule Zion 1956 only - Sep 30 3:00 0 S
Rule Zion 1957 only - Apr 29 2:00 1:00 D
Rule Zion 1957 only - Sep 22 0:00 0 S
Rule Zion 1974 only - Jul 7 0:00 1:00 D
Rule Zion 1974 only - Oct 13 0:00 0 S
Rule Zion 1975 only - Apr 20 0:00 1:00 D
Rule Zion 1975 only - Aug 31 0:00 0 S
Rule Zion 1985 only - Apr 14 0:00 1:00 D
Rule Zion 1985 only - Sep 15 0:00 0 S
Rule Zion 1986 only - May 18 0:00 1:00 D
Rule Zion 1986 only - Sep 7 0:00 0 S
Rule Zion 1987 only - Apr 15 0:00 1:00 D
Rule Zion 1987 only - Sep 13 0:00 0 S
# From Avigdor Finkelstein (2014-03-05):
# I check the Parliament (Knesset) records and there it's stated that the
# [1988] transition should take place on Saturday night, when the Sabbath
# ends and changes to Sunday.
Rule Zion 1988 only - Apr 10 0:00 1:00 D
Rule Zion 1988 only - Sep 4 0:00 0 S
# From Ephraim Silverberg
# (1997-03-04, 1998-03-16, 1998-12-28, 2000-01-17, 2000-07-25, 2004-12-22,
# and 2005-02-17):
# According to the Office of the Secretary General of the Ministry of
# Interior, there is NO set rule for Daylight-Savings/Standard time changes.
# One thing is entrenched in law, however: that there must be at least 150
# days of daylight savings time annually. From 1993-1998, the change to
# daylight savings time was on a Friday morning from midnight IST to
# 1 a.m IDT; up until 1998, the change back to standard time was on a
# Saturday night from midnight daylight savings time to 11 p.m. standard
# time. 1996 is an exception to this rule where the change back to standard
# time took place on Sunday night instead of Saturday night to avoid
# conflicts with the Jewish New Year. In 1999, the change to
# daylight savings time was still on a Friday morning but from
# 2 a.m. IST to 3 a.m. IDT; furthermore, the change back to standard time
# was also on a Friday morning from 2 a.m. IDT to 1 a.m. IST for
# 1999 only. In the year 2000, the change to daylight savings time was
# similar to 1999, but although the change back will be on a Friday, it
# will take place from 1 a.m. IDT to midnight IST. Starting in 2001, all
# changes to/from will take place at 1 a.m. old time, but now there is no
# rule as to what day of the week it will take place in as the start date
# (except in 2003) is the night after the Passover Seder (i.e. the eve
# of the 16th of Nisan in the lunar Hebrew calendar) and the end date
# (except in 2002) is three nights before Yom Kippur [Day of Atonement]
# (the eve of the 7th of Tishrei in the lunar Hebrew calendar).
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 1989 only - Apr 30 0:00 1:00 D
Rule Zion 1989 only - Sep 3 0:00 0 S
Rule Zion 1990 only - Mar 25 0:00 1:00 D
Rule Zion 1990 only - Aug 26 0:00 0 S
Rule Zion 1991 only - Mar 24 0:00 1:00 D
Rule Zion 1991 only - Sep 1 0:00 0 S
Rule Zion 1992 only - Mar 29 0:00 1:00 D
Rule Zion 1992 only - Sep 6 0:00 0 S
Rule Zion 1993 only - Apr 2 0:00 1:00 D
Rule Zion 1993 only - Sep 5 0:00 0 S
# The dates for 1994-1995 were obtained from Office of the Spokeswoman for the
# Ministry of Interior, Jerusalem, Israel. The spokeswoman can be reached by
# calling the office directly at 972-2-6701447 or 972-2-6701448.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 1994 only - Apr 1 0:00 1:00 D
Rule Zion 1994 only - Aug 28 0:00 0 S
Rule Zion 1995 only - Mar 31 0:00 1:00 D
Rule Zion 1995 only - Sep 3 0:00 0 S
# The dates for 1996 were determined by the Minister of Interior of the
# time, Haim Ramon. The official announcement regarding 1996-1998
# (with the dates for 1997-1998 no longer being relevant) can be viewed at:
#
# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/1996-1998.ramon.ps.gz
#
# The dates for 1997-1998 were altered by his successor, Rabbi Eli Suissa.
#
# The official announcements for the years 1997-1999 can be viewed at:
#
# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/YYYY.ps.gz
#
# where YYYY is the relevant year.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 1996 only - Mar 15 0:00 1:00 D
Rule Zion 1996 only - Sep 16 0:00 0 S
Rule Zion 1997 only - Mar 21 0:00 1:00 D
Rule Zion 1997 only - Sep 14 0:00 0 S
Rule Zion 1998 only - Mar 20 0:00 1:00 D
Rule Zion 1998 only - Sep 6 0:00 0 S
Rule Zion 1999 only - Apr 2 2:00 1:00 D
Rule Zion 1999 only - Sep 3 2:00 0 S
# The Knesset Interior Committee has changed the dates for 2000 for
# the third time in just over a year and have set new dates for the
# years 2001-2004 as well.
#
# The official announcement for the start date of 2000 can be viewed at:
#
# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-start.ps.gz
#
# The official announcement for the end date of 2000 and the dates
# for the years 2001-2004 can be viewed at:
#
# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-2004.ps.gz
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 2000 only - Apr 14 2:00 1:00 D
Rule Zion 2000 only - Oct 6 1:00 0 S
Rule Zion 2001 only - Apr 9 1:00 1:00 D
Rule Zion 2001 only - Sep 24 1:00 0 S
Rule Zion 2002 only - Mar 29 1:00 1:00 D
Rule Zion 2002 only - Oct 7 1:00 0 S
Rule Zion 2003 only - Mar 28 1:00 1:00 D
Rule Zion 2003 only - Oct 3 1:00 0 S
Rule Zion 2004 only - Apr 7 1:00 1:00 D
Rule Zion 2004 only - Sep 22 1:00 0 S
# The proposed law agreed upon by the Knesset Interior Committee on
# 2005-02-14 is that, for 2005 and beyond, DST starts at 02:00 the
# last Friday before April 2nd (i.e. the last Friday in March or April
# 1st itself if it falls on a Friday) and ends at 02:00 on the Saturday
# night _before_ the fast of Yom Kippur.
#
# Those who can read Hebrew can view the announcement at:
#
# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2005+beyond.ps
# From Paul Eggert (2012-10-26):
# I used Ephraim Silverberg's dst-israel.el program
# (2005-02-20)
# along with Ed Reingold's cal-hebrew in GNU Emacs 21.4,
# to generate the transitions from 2005 through 2012.
# (I replaced "lastFri" with "Fri>=26" by hand.)
# The spring transitions all correspond to the following Rule:
#
# Rule Zion 2005 2012 - Mar Fri>=26 2:00 1:00 D
#
# but older zic implementations (e.g., Solaris 8) do not support
# "Fri>=26" to mean April 1 in years like 2005, so for now we list the
# springtime transitions explicitly.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 2005 only - Apr 1 2:00 1:00 D
Rule Zion 2005 only - Oct 9 2:00 0 S
Rule Zion 2006 2010 - Mar Fri>=26 2:00 1:00 D
Rule Zion 2006 only - Oct 1 2:00 0 S
Rule Zion 2007 only - Sep 16 2:00 0 S
Rule Zion 2008 only - Oct 5 2:00 0 S
Rule Zion 2009 only - Sep 27 2:00 0 S
Rule Zion 2010 only - Sep 12 2:00 0 S
Rule Zion 2011 only - Apr 1 2:00 1:00 D
Rule Zion 2011 only - Oct 2 2:00 0 S
Rule Zion 2012 only - Mar Fri>=26 2:00 1:00 D
Rule Zion 2012 only - Sep 23 2:00 0 S
# From Ephraim Silverberg (2013-06-27):
# On June 23, 2013, the Israeli government approved changes to the
# Time Decree Law. The next day, the changes passed the First Reading
# in the Knesset. The law is expected to pass the Second and Third
# (final) Readings by the beginning of September 2013.
#
# As of 2013, DST starts at 02:00 on the Friday before the last Sunday
# in March. DST ends at 02:00 on the last Sunday of October.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 2013 max - Mar Fri>=23 2:00 1:00 D
Rule Zion 2013 max - Oct lastSun 2:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Jerusalem 2:20:54 - LMT 1880
2:20:40 - JMT 1918 # Jerusalem Mean Time?
2:00 Zion I%sT
###############################################################################
# Japan
# '9:00' and 'JST' is from Guy Harris.
# From Paul Eggert (1995-03-06):
# Today's _Asahi Evening News_ (page 4) reports that Japan had
# daylight saving between 1948 and 1951, but "the system was discontinued
# because the public believed it would lead to longer working hours."
# From Mayumi Negishi in the 2005-08-10 Japan Times
# :
# Occupation authorities imposed daylight-saving time on Japan on
# [1948-05-01].... But lack of prior debate and the execution of
# daylight-saving time just three days after the bill was passed generated
# deep hatred of the concept.... The Diet unceremoniously passed a bill to
# dump the unpopular system in October 1951, less than a month after the San
# Francisco Peace Treaty was signed. (A government poll in 1951 showed 53%
# of the Japanese wanted to scrap daylight-saving time, as opposed to 30% who
# wanted to keep it.)
# From Paul Eggert (2006-03-22):
# Shanks & Pottenger write that DST in Japan during those years was as follows:
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Japan 1948 only - May Sun>=1 2:00 1:00 D
Rule Japan 1948 1951 - Sep Sat>=8 2:00 0 S
Rule Japan 1949 only - Apr Sun>=1 2:00 1:00 D
Rule Japan 1950 1951 - May Sun>=1 2:00 1:00 D
# but the only locations using it (for birth certificates, presumably, since
# their audience is astrologers) were US military bases. For now, assume
# that for most purposes daylight-saving time was observed; otherwise, what
# would have been the point of the 1951 poll?
# From Hideyuki Suzuki (1998-11-09):
# 'Tokyo' usually stands for the former location of Tokyo Astronomical
# Observatory: 139 degrees 44' 40.90" E (9h 18m 58.727s), 35 degrees 39' 16.0" N.
# This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996'
# edited by National Astronomical Observatory of Japan....
# JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST).
# The law is enacted on 1886-07-07.
# From Hideyuki Suzuki (1998-11-16):
# The ordinance No. 51 (1886) established "standard time" in Japan,
# which stands for the time on 135 degrees E.
# In the ordinance No. 167 (1895), "standard time" was renamed to "central
# standard time". And the same ordinance also established "western standard
# time", which stands for the time on 120 degrees E.... But "western standard
# time" was abolished in the ordinance No. 529 (1937). In the ordinance No.
# 167, there is no mention regarding for what place western standard time is
# standard....
#
# I wrote "ordinance" above, but I don't know how to translate.
# In Japanese it's "chokurei", which means ordinance from emperor.
# From Yu-Cheng Chuang (2013-07-12):
# ...the Meiji Emperor announced Ordinance No. 167 of Meiji Year 28 "The clause
# about standard time" ... The adoption began from Jan 1, 1896.
# http://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
#
# ...the Showa Emperor announced Ordinance No. 529 of Showa Year 12 ... which
# means the whole Japan territory, including later occupations, adopt Japan
# Central Time (UTC+9). The adoption began on Oct 1, 1937.
# http://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u
9:00 - JST 1896 Jan 1
9:00 - JCST 1937 Oct 1
9:00 Japan J%sT
# Since 1938, all Japanese possessions have been like Asia/Tokyo.
# Jordan
#
# From
# Jordan Week (1999-07-01) via Steffen Thorsen (1999-09-09):
# Clocks in Jordan were forwarded one hour on Wednesday at midnight,
# in accordance with the government's decision to implement summer time
# all year round.
#
# From
# Jordan Week (1999-09-30) via Steffen Thorsen (1999-11-09):
# Winter time starts today Thursday, 30 September. Clocks will be turned back
# by one hour. This is the latest government decision and it's final!
# The decision was taken because of the increase in working hours in
# government's departments from six to seven hours.
#
# From Paul Eggert (2005-11-22):
# Starting 2003 transitions are from Steffen Thorsen's web site timeanddate.com.
#
# From Steffen Thorsen (2005-11-23):
# For Jordan I have received multiple independent user reports every year
# about DST end dates, as the end-rule is different every year.
#
# From Steffen Thorsen (2006-10-01), after a heads-up from Hilal Malawi:
# http://www.petranews.gov.jo/nepras/2006/Sep/05/4000.htm
# "Jordan will switch to winter time on Friday, October 27".
#
# From Steffen Thorsen (2009-04-02):
# This single one might be good enough, (2009-03-24, Arabic):
# http://petra.gov.jo/Artical.aspx?Lng=2&Section=8&Artical=95279
#
# Google's translation:
#
# > The Council of Ministers decided in 2002 to adopt the principle of timely
# > submission of the summer at 60 minutes as of midnight on the last Thursday
# > of the month of March of each year.
#
# So - this means the midnight between Thursday and Friday since 2002.
# From Arthur David Olson (2009-04-06):
# We still have Jordan switching to DST on Thursdays in 2000 and 2001.
# From Steffen Thorsen (2012-10-25):
# Yesterday the government in Jordan announced that they will not
# switch back to standard time this winter, so the will stay on DST
# until about the same time next year (at least).
# http://www.petra.gov.jo/Public_News/Nws_NewsDetails.aspx?NewsID=88950
# From Steffen Thorsen (2013-12-11):
# Jordan Times and other sources say that Jordan is going back to
# UTC+2 on 2013-12-19 at midnight:
# http://jordantimes.com/govt-decides-to-switch-back-to-wintertime
# Official, in Arabic:
# http://www.petra.gov.jo/public_news/Nws_NewsDetails.aspx?Menu_ID=&Site_Id=2&lang=1&NewsID=133230&CatID=14
# ... Our background/permalink about it
# http://www.timeanddate.com/news/time/jordan-reverses-dst-decision.html
# ...
# http://www.petra.gov.jo/Public_News/Nws_NewsDetails.aspx?lang=2&site_id=1&NewsID=133313&Type=P
# ... says midnight for the coming one and 1:00 for the ones in the future
# (and they will use DST again next year, using the normal schedule).
# From Paul Eggert (2013-12-11):
# As Steffen suggested, consider the past 21-month experiment to be DST.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Jordan 1973 only - Jun 6 0:00 1:00 S
Rule Jordan 1973 1975 - Oct 1 0:00 0 -
Rule Jordan 1974 1977 - May 1 0:00 1:00 S
Rule Jordan 1976 only - Nov 1 0:00 0 -
Rule Jordan 1977 only - Oct 1 0:00 0 -
Rule Jordan 1978 only - Apr 30 0:00 1:00 S
Rule Jordan 1978 only - Sep 30 0:00 0 -
Rule Jordan 1985 only - Apr 1 0:00 1:00 S
Rule Jordan 1985 only - Oct 1 0:00 0 -
Rule Jordan 1986 1988 - Apr Fri>=1 0:00 1:00 S
Rule Jordan 1986 1990 - Oct Fri>=1 0:00 0 -
Rule Jordan 1989 only - May 8 0:00 1:00 S
Rule Jordan 1990 only - Apr 27 0:00 1:00 S
Rule Jordan 1991 only - Apr 17 0:00 1:00 S
Rule Jordan 1991 only - Sep 27 0:00 0 -
Rule Jordan 1992 only - Apr 10 0:00 1:00 S
Rule Jordan 1992 1993 - Oct Fri>=1 0:00 0 -
Rule Jordan 1993 1998 - Apr Fri>=1 0:00 1:00 S
Rule Jordan 1994 only - Sep Fri>=15 0:00 0 -
Rule Jordan 1995 1998 - Sep Fri>=15 0:00s 0 -
Rule Jordan 1999 only - Jul 1 0:00s 1:00 S
Rule Jordan 1999 2002 - Sep lastFri 0:00s 0 -
Rule Jordan 2000 2001 - Mar lastThu 0:00s 1:00 S
Rule Jordan 2002 2012 - Mar lastThu 24:00 1:00 S
Rule Jordan 2003 only - Oct 24 0:00s 0 -
Rule Jordan 2004 only - Oct 15 0:00s 0 -
Rule Jordan 2005 only - Sep lastFri 0:00s 0 -
Rule Jordan 2006 2011 - Oct lastFri 0:00s 0 -
Rule Jordan 2013 only - Dec 20 0:00 0 -
Rule Jordan 2014 max - Mar lastThu 24:00 1:00 S
Rule Jordan 2014 max - Oct lastFri 0:00s 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Amman 2:23:44 - LMT 1931
2:00 Jordan EE%sT
# Kazakhstan
# From Paul Eggert (1996-11-22):
# Andrew Evtichov (1996-04-13) writes that Kazakhstan
# stayed in sync with Moscow after 1990, and that Aqtobe (formerly Aktyubinsk)
# and Aqtau (formerly Shevchenko) are the largest cities in their zones.
# Guess that Aqtau and Aqtobe diverged in 1995, since that's the first time
# IATA SSIM mentions a third time zone in Kazakhstan.
# From Paul Eggert (2006-03-22):
# German Iofis, ELSI, Almaty (2001-10-09) reports that Kazakhstan uses
# RussiaAsia rules, instead of switching at 00:00 as the IATA has it.
# Go with Shanks & Pottenger, who have them always using RussiaAsia rules.
# Also go with the following claims of Shanks & Pottenger:
#
# - Kazakhstan did not observe DST in 1991.
# - Qyzylorda switched from +5:00 to +6:00 on 1992-01-19 02:00.
# - Oral switched from +5:00 to +4:00 in spring 1989.
# From Kazakhstan Embassy's News Bulletin #11
# (2005-03-21):
# The Government of Kazakhstan passed a resolution March 15 abolishing
# daylight saving time citing lack of economic benefits and health
# complications coupled with a decrease in productivity.
#
# From Branislav Kojic (in Astana) via Gwillim Law (2005-06-28):
# ... what happened was that the former Kazakhstan Eastern time zone
# was "blended" with the Central zone. Therefore, Kazakhstan now has
# two time zones, and difference between them is one hour. The zone
# closer to UTC is the former Western zone (probably still called the
# same), encompassing four provinces in the west: Aqtobe, Atyrau,
# Mangghystau, and West Kazakhstan. The other zone encompasses
# everything else.... I guess that would make Kazakhstan time zones
# de jure UTC+5 and UTC+6 respectively.
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
#
# Almaty (formerly Alma-Ata), representing most locations in Kazakhstan
Zone Asia/Almaty 5:07:48 - LMT 1924 May 2 # or Alma-Ata
5:00 - ALMT 1930 Jun 21 # Alma-Ata Time
6:00 RussiaAsia ALM%sT 1991
6:00 - ALMT 1992
6:00 RussiaAsia ALM%sT 2005 Mar 15
6:00 - ALMT
# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.)
Zone Asia/Qyzylorda 4:21:52 - LMT 1924 May 2
4:00 - KIZT 1930 Jun 21 # Kizilorda Time
5:00 - KIZT 1981 Apr 1
5:00 1:00 KIZST 1981 Oct 1
6:00 - KIZT 1982 Apr 1
5:00 RussiaAsia KIZ%sT 1991
5:00 - KIZT 1991 Dec 16 # independence
5:00 - QYZT 1992 Jan 19 2:00
6:00 RussiaAsia QYZ%sT 2005 Mar 15
6:00 - QYZT
# Aqtobe (aka Aktobe, formerly Akt'ubinsk)
Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2
4:00 - AKTT 1930 Jun 21 # Aktyubinsk Time
5:00 - AKTT 1981 Apr 1
5:00 1:00 AKTST 1981 Oct 1
6:00 - AKTT 1982 Apr 1
5:00 RussiaAsia AKT%sT 1991
5:00 - AKTT 1991 Dec 16 # independence
5:00 RussiaAsia AQT%sT 2005 Mar 15 # Aqtobe Time
5:00 - AQTT
# Mangghystau
# Aqtau was not founded until 1963, but it represents an inhabited region,
# so include time stamps before 1963.
Zone Asia/Aqtau 3:21:04 - LMT 1924 May 2
4:00 - FORT 1930 Jun 21 # Fort Shevchenko T
5:00 - FORT 1963
5:00 - SHET 1981 Oct 1 # Shevchenko Time
6:00 - SHET 1982 Apr 1
5:00 RussiaAsia SHE%sT 1991
5:00 - SHET 1991 Dec 16 # independence
5:00 RussiaAsia AQT%sT 1995 Mar lastSun 2:00 # Aqtau Time
4:00 RussiaAsia AQT%sT 2005 Mar 15
5:00 - AQTT
# West Kazakhstan
Zone Asia/Oral 3:25:24 - LMT 1924 May 2 # or Ural'sk
4:00 - URAT 1930 Jun 21 # Ural'sk time
5:00 - URAT 1981 Apr 1
5:00 1:00 URAST 1981 Oct 1
6:00 - URAT 1982 Apr 1
5:00 RussiaAsia URA%sT 1989 Mar 26 2:00
4:00 RussiaAsia URA%sT 1991
4:00 - URAT 1991 Dec 16 # independence
4:00 RussiaAsia ORA%sT 2005 Mar 15 # Oral Time
5:00 - ORAT
# Kyrgyzstan (Kirgizstan)
# Transitions through 1991 are from Shanks & Pottenger.
# From Paul Eggert (2005-08-15):
# According to an article dated today in the Kyrgyzstan Development Gateway
#
# Kyrgyzstan is canceling the daylight saving time system. I take the article
# to mean that they will leave their clocks at 6 hours ahead of UTC.
# From Malik Abdugaliev (2005-09-21):
# Our government cancels daylight saving time 6th of August 2005.
# From 2005-08-12 our GMT-offset is +6, w/o any daylight saving.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 S
Rule Kyrgyz 1992 1996 - Sep lastSun 0:00 0 -
Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 S
Rule Kyrgyz 1997 2004 - Oct lastSun 2:30 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2
5:00 - FRUT 1930 Jun 21 # Frunze Time
6:00 RussiaAsia FRU%sT 1991 Mar 31 2:00s
5:00 1:00 FRUST 1991 Aug 31 2:00 # independence
5:00 Kyrgyz KG%sT 2005 Aug 12 # Kyrgyzstan Time
6:00 - KGT
###############################################################################
# Korea (North and South)
# From Annie I. Bang (2006-07-10) in
# :
# The Ministry of Commerce, Industry and Energy has already
# commissioned a research project [to reintroduce DST] and has said
# the system may begin as early as 2008.... Korea ran a daylight
# saving program from 1949-61 but stopped it during the 1950-53 Korean War.
# From Shanks & Pottenger:
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule ROK 1960 only - May 15 0:00 1:00 D
Rule ROK 1960 only - Sep 13 0:00 0 S
Rule ROK 1987 1988 - May Sun>=8 0:00 1:00 D
Rule ROK 1987 1988 - Oct Sun>=8 0:00 0 S
# From Paul Eggert (2014-07-01):
# The following entries are from Shanks & Pottenger, except that I
# guessed that time zone abbreviations through 1945 followed the same
# rules as discussed under Taiwan, with nominal switches from JST to KST
# when the respective cities were taken over by the Allies after WWII.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Seoul 8:27:52 - LMT 1890
8:30 - KST 1904 Dec
9:00 - JCST 1928
8:30 - KST 1932
9:00 - JCST 1937 Oct 1
9:00 - JST 1945 Sep 8
9:00 - KST 1954 Mar 21
8:00 ROK K%sT 1961 Aug 10
8:30 - KST 1968 Oct
9:00 ROK K%sT
Zone Asia/Pyongyang 8:23:00 - LMT 1890
8:30 - KST 1904 Dec
9:00 - JCST 1928
8:30 - KST 1932
9:00 - JCST 1937 Oct 1
9:00 - JST 1945 Aug 24
9:00 - KST 1954 Mar 21
8:00 - KST 1961 Aug 10
9:00 - KST
###############################################################################
# Kuwait
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kuwait 3:11:56 - LMT 1950
3:00 - AST
# Laos
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Vientiane 6:50:24 - LMT 1906 Jun 9 # or Viangchan
7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
7:00 - ICT 1912 May
8:00 - ICT 1931 May
7:00 - ICT
# Lebanon
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Lebanon 1920 only - Mar 28 0:00 1:00 S
Rule Lebanon 1920 only - Oct 25 0:00 0 -
Rule Lebanon 1921 only - Apr 3 0:00 1:00 S
Rule Lebanon 1921 only - Oct 3 0:00 0 -
Rule Lebanon 1922 only - Mar 26 0:00 1:00 S
Rule Lebanon 1922 only - Oct 8 0:00 0 -
Rule Lebanon 1923 only - Apr 22 0:00 1:00 S
Rule Lebanon 1923 only - Sep 16 0:00 0 -
Rule Lebanon 1957 1961 - May 1 0:00 1:00 S
Rule Lebanon 1957 1961 - Oct 1 0:00 0 -
Rule Lebanon 1972 only - Jun 22 0:00 1:00 S
Rule Lebanon 1972 1977 - Oct 1 0:00 0 -
Rule Lebanon 1973 1977 - May 1 0:00 1:00 S
Rule Lebanon 1978 only - Apr 30 0:00 1:00 S
Rule Lebanon 1978 only - Sep 30 0:00 0 -
Rule Lebanon 1984 1987 - May 1 0:00 1:00 S
Rule Lebanon 1984 1991 - Oct 16 0:00 0 -
Rule Lebanon 1988 only - Jun 1 0:00 1:00 S
Rule Lebanon 1989 only - May 10 0:00 1:00 S
Rule Lebanon 1990 1992 - May 1 0:00 1:00 S
Rule Lebanon 1992 only - Oct 4 0:00 0 -
Rule Lebanon 1993 max - Mar lastSun 0:00 1:00 S
Rule Lebanon 1993 1998 - Sep lastSun 0:00 0 -
Rule Lebanon 1999 max - Oct lastSun 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Beirut 2:22:00 - LMT 1880
2:00 Lebanon EE%sT
# Malaysia
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 TS # one-Third Summer
Rule NBorneo 1935 1941 - Dec 14 0:00 0 -
#
# peninsular Malaysia
# The data here are taken from Mok Ly Yng (2003-10-30)
# .
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kuala_Lumpur 6:46:46 - LMT 1901 Jan 1
6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
7:00 - MALT 1933 Jan 1 # Malaya Time
7:00 0:20 MALST 1936 Jan 1
7:20 - MALT 1941 Sep 1
7:30 - MALT 1942 Feb 16
9:00 - JST 1945 Sep 12
7:30 - MALT 1982 Jan 1
8:00 - MYT # Malaysia Time
# Sabah & Sarawak
# From Paul Eggert (2006-03-22):
# The data here are mostly from Shanks & Pottenger, but the 1942, 1945 and 1982
# transition dates are from Mok Ly Yng.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kuching 7:21:20 - LMT 1926 Mar
7:30 - BORT 1933 # Borneo Time
8:00 NBorneo BOR%sT 1942 Feb 16
9:00 - JST 1945 Sep 12
8:00 - BORT 1982 Jan 1
8:00 - MYT
# Maldives
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
4:54:00 - MMT 1960 # Male Mean Time
5:00 - MVT # Maldives Time
# Mongolia
# Shanks & Pottenger say that Mongolia has three time zones, but
# The USNO (1995-12-21) and the CIA map Standard Time Zones of the World
# (2005-03) both say that it has just one.
# From Oscar van Vlijmen (1999-12-11):
# General Information Mongolia
# (1999-09)
# "Time: Mongolia has two time zones. Three westernmost provinces of
# Bayan-Ölgii, Uvs, and Hovd are one hour earlier than the capital city, and
# the rest of the country follows the Ulaanbaatar time, which is UTC/GMT plus
# eight hours."
# From Rives McDow (1999-12-13):
# Mongolia discontinued the use of daylight savings time in 1999; 1998
# being the last year it was implemented. The dates of implementation I am
# unsure of, but most probably it was similar to Russia, except for the time
# of implementation may have been different....
# Some maps in the past have indicated that there was an additional time
# zone in the eastern part of Mongolia, including the provinces of Dornod,
# Sükhbaatar, and possibly Khentii.
# From Paul Eggert (1999-12-15):
# Naming and spelling is tricky in Mongolia.
# We'll use Hovd (also spelled Chovd and Khovd) to represent the west zone;
# the capital of the Hovd province is sometimes called Hovd, sometimes Dund-Us,
# and sometimes Jirgalanta (with variant spellings), but the name Hovd
# is good enough for our purposes.
# From Rives McDow (2001-05-13):
# In addition to Mongolia starting daylight savings as reported earlier
# (adopted DST on 2001-04-27 02:00 local time, ending 2001-09-28),
# there are three time zones.
#
# Provinces [at 7:00]: Bayan-Ölgii, Uvs, Khovd, Zavkhan, Govi-Altai
# Provinces [at 8:00]: Khövsgöl, Bulgan, Arkhangai, Khentii, Töv,
# Bayankhongor, Övörkhangai, Dundgovi, Dornogovi, Ömnögovi
# Provinces [at 9:00]: Dornod, Sükhbaatar
#
# [The province of Selenge is omitted from the above lists.]
# From Ganbold Ts., Ulaanbaatar (2004-04-17):
# Daylight saving occurs at 02:00 local time last Saturday of March.
# It will change back to normal at 02:00 local time last Saturday of
# September.... As I remember this rule was changed in 2001.
#
# From Paul Eggert (2004-04-17):
# For now, assume Rives McDow's informant got confused about Friday vs
# Saturday, and that his 2001 dates should have 1 added to them.
# From Paul Eggert (2005-07-26):
# We have wildly conflicting information about Mongolia's time zones.
# Bill Bonnet (2005-05-19) reports that the US Embassy in Ulaanbaatar says
# there is only one time zone and that DST is observed, citing Microsoft
# Windows XP as the source. Risto Nykänen (2005-05-16) reports that
# travelmongolia.org says there are two time zones (UTC+7, UTC+8) with no DST.
# Oscar van Vlijmen (2005-05-20) reports that the Mongolian Embassy in
# Washington, DC says there are two time zones, with DST observed.
# He also found
#
# which also says that there is DST, and which has a comment by "Toddius"
# (2005-03-31 06:05 +0700) saying "Mongolia actually has 3.5 time zones.
# The West (OLGII) is +7 GMT, most of the country is ULAT is +8 GMT
# and some Eastern provinces are +9 GMT but Sükhbaatar Aimag is SUHK +8.5 GMT.
# The SUKH timezone is new this year, it is one of the few things the
# parliament passed during the tumultuous winter session."
# For now, let's ignore this information, until we have more confirmation.
# From Ganbold Ts. (2007-02-26):
# Parliament of Mongolia has just changed the daylight-saving rule in February.
# They decided not to adopt daylight-saving time....
# http://www.mongolnews.mn/index.php?module=unuudur&sec=view&id=15742
# From Deborah Goldsmith (2008-03-30):
# We received a bug report claiming that the tz database UTC offset for
# Asia/Choibalsan (GMT+09:00) is incorrect, and that it should be GMT
# +08:00 instead. Different sources appear to disagree with the tz
# database on this, e.g.:
#
# http://www.timeanddate.com/worldclock/city.html?n=1026
# http://www.worldtimeserver.com/current_time_in_MN.aspx
#
# both say GMT+08:00.
# From Steffen Thorsen (2008-03-31):
# eznis airways, which operates several domestic flights, has a flight
# schedule here:
# http://www.eznis.com/Container.jsp?id=112
# (click the English flag for English)
#
# There it appears that flights between Choibalsan and Ulaanbaatar arrive
# about 1:35 - 1:50 hours later in local clock time, no matter the
# direction, while Ulaanbaatar-Khovd takes 2 hours in the Eastern
# direction and 3:35 back, which indicates that Ulaanbaatar and Khovd are
# in different time zones (like we know about), while Choibalsan and
# Ulaanbaatar are in the same time zone (correction needed).
# From Arthur David Olson (2008-05-19):
# Assume that Choibalsan is indeed offset by 8:00.
# XXX--in the absence of better information, assume that transition
# was at the start of 2008-03-31 (the day of Steffen Thorsen's report);
# this is almost surely wrong.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Mongol 1983 1984 - Apr 1 0:00 1:00 S
Rule Mongol 1983 only - Oct 1 0:00 0 -
# Shanks & Pottenger and IATA SSIM say 1990s switches occurred at 00:00,
# but McDow says the 2001 switches occurred at 02:00. Also, IATA SSIM
# (1996-09) says 1996-10-25. Go with Shanks & Pottenger through 1998.
#
# Shanks & Pottenger say that the Sept. 1984 through Sept. 1990 switches
# in Choibalsan (more precisely, in Dornod and Sükhbaatar) took place
# at 02:00 standard time, not at 00:00 local time as in the rest of
# the country. That would be odd, and possibly is a result of their
# correction of 02:00 (in the previous edition) not being done correctly
# in the latest edition; so ignore it for now.
Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 S
Rule Mongol 1984 1998 - Sep lastSun 0:00 0 -
# IATA SSIM (1999-09) says Mongolia no longer observes DST.
Rule Mongol 2001 only - Apr lastSat 2:00 1:00 S
Rule Mongol 2001 2006 - Sep lastSat 2:00 0 -
Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
# Hovd, a.k.a. Chovd, Dund-Us, Dzhargalant, Khovd, Jirgalanta
Zone Asia/Hovd 6:06:36 - LMT 1905 Aug
6:00 - HOVT 1978 # Hovd Time
7:00 Mongol HOV%sT
# Ulaanbaatar, a.k.a. Ulan Bataar, Ulan Bator, Urga
Zone Asia/Ulaanbaatar 7:07:32 - LMT 1905 Aug
7:00 - ULAT 1978 # Ulaanbaatar Time
8:00 Mongol ULA%sT
# Choibalsan, a.k.a. Bajan Tuemen, Bajan Tumen, Chojbalsan,
# Choybalsan, Sanbejse, Tchoibalsan
Zone Asia/Choibalsan 7:38:00 - LMT 1905 Aug
7:00 - ULAT 1978
8:00 - ULAT 1983 Apr
9:00 Mongol CHO%sT 2008 Mar 31 # Choibalsan Time
8:00 Mongol CHO%sT
# Nepal
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kathmandu 5:41:16 - LMT 1920
5:30 - IST 1986
5:45 - NPT # Nepal Time
# Oman
# Milne says 3:54:24 was the meridian of the Muscat Tidal Observatory.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Muscat 3:54:24 - LMT 1920
4:00 - GST
# Pakistan
# From Rives McDow (2002-03-13):
# I have been advised that Pakistan has decided to adopt dst on a
# TRIAL basis for one year, starting 00:01 local time on April 7, 2002
# and ending at 00:01 local time October 6, 2002. This is what I was
# told, but I believe that the actual time of change may be 00:00; the
# 00:01 was to make it clear which day it was on.
# From Paul Eggert (2002-03-15):
# Jesper Nørgaard found this URL:
# http://www.pak.gov.pk/public/news/app/app06_dec.htm
# (dated 2001-12-06) which says that the Cabinet adopted a scheme "to
# advance the clocks by one hour on the night between the first
# Saturday and Sunday of April and revert to the original position on
# 15th October each year". This agrees with McDow's 04-07 at 00:00,
# but disagrees about the October transition, and makes it sound like
# it's not on a trial basis. Also, the "between the first Saturday
# and Sunday of April" phrase, if taken literally, means that the
# transition takes place at 00:00 on the first Sunday on or after 04-02.
# From Paul Eggert (2003-02-09):
# DAWN reported on 2002-10-05
# that 2002 DST ended that day at midnight. Go with McDow for now.
# From Steffen Thorsen (2003-03-14):
# According to http://www.dawn.com/2003/03/07/top15.htm
# there will be no DST in Pakistan this year:
#
# ISLAMABAD, March 6: Information and Media Development Minister Sheikh
# Rashid Ahmed on Thursday said the cabinet had reversed a previous
# decision to advance clocks by one hour in summer and put them back by
# one hour in winter with the aim of saving light hours and energy.
#
# The minister told a news conference that the experiment had rather
# shown 8 per cent higher consumption of electricity.
# From Alex Krivenyshev (2008-05-15):
#
# Here is an article that Pakistan plan to introduce Daylight Saving Time
# on June 1, 2008 for 3 months.
#
# "... The federal cabinet on Wednesday announced a new conservation plan to help
# reduce load shedding by approving the closure of commercial centres at 9pm and
# moving clocks forward by one hour for the next three months.
# ...."
#
# http://www.worldtimezone.net/dst_news/dst_news_pakistan01.html
# http://www.dailytimes.com.pk/default.asp?page=2008%5C05%5C15%5Cstory_15-5-2008_pg1_4
# From Arthur David Olson (2008-05-19):
# XXX--midnight transitions is a guess; 2008 only is a guess.
# From Alexander Krivenyshev (2008-08-28):
# Pakistan government has decided to keep the watches one-hour advanced
# for another 2 months - plan to return to Standard Time on October 31
# instead of August 31.
#
# http://www.worldtimezone.com/dst_news/dst_news_pakistan02.html
# http://dailymailnews.com/200808/28/news/dmbrn03.html
# From Alexander Krivenyshev (2009-04-08):
# Based on previous media reports that "... proposed plan to
# advance clocks by one hour from May 1 will cause disturbance
# to the working schedules rather than bringing discipline in
# official working."
# http://www.thenews.com.pk/daily_detail.asp?id=171280
#
# recent news that instead of May 2009 - Pakistan plan to
# introduce DST from April 15, 2009
#
# FYI: Associated Press Of Pakistan
# April 08, 2009
# Cabinet okays proposal to advance clocks by one hour from April 15
# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=73043&Itemid=1
# http://www.worldtimezone.com/dst_news/dst_news_pakistan05.html
#
# ....
# The Federal Cabinet on Wednesday approved the proposal to
# advance clocks in the country by one hour from April 15 to
# conserve energy"
# From Steffen Thorsen (2009-09-17):
# "The News International," Pakistan reports that: "The Federal
# Government has decided to restore the previous time by moving the
# clocks backward by one hour from October 1. A formal announcement to
# this effect will be made after the Prime Minister grants approval in
# this regard."
# http://www.thenews.com.pk/updates.asp?id=87168
# From Alexander Krivenyshev (2009-09-28):
# According to Associated Press Of Pakistan, it is confirmed that
# Pakistan clocks across the country would be turned back by an hour from October
# 1, 2009.
#
# "Clocks to go back one hour from 1 Oct"
# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=86715&Itemid=2
# http://www.worldtimezone.com/dst_news/dst_news_pakistan07.htm
# From Steffen Thorsen (2009-09-29):
# Alexander Krivenyshev wrote:
# > According to Associated Press Of Pakistan, it is confirmed that
# > Pakistan clocks across the country would be turned back by an hour from October
# > 1, 2009.
#
# Now they seem to have changed their mind, November 1 is the new date:
# http://www.thenews.com.pk/top_story_detail.asp?Id=24742
# "The country's clocks will be reversed by one hour on November 1.
# Officials of Federal Ministry for Interior told this to Geo News on
# Monday."
#
# And more importantly, it seems that these dates will be kept every year:
# "It has now been decided that clocks will be wound forward by one hour
# on April 15 and reversed by an hour on November 1 every year without
# obtaining prior approval, the officials added."
#
# We have confirmed this year's end date with both with the Ministry of
# Water and Power and the Pakistan Electric Power Company:
# http://www.timeanddate.com/news/time/pakistan-ends-dst09.html
# From Christoph Göhre (2009-10-01):
# [T]he German Consulate General in Karachi reported me today that Pakistan
# will go back to standard time on 1st of November.
# From Steffen Thorsen (2010-03-26):
# Steffen Thorsen wrote:
# > On Thursday (2010-03-25) it was announced that DST would start in
# > Pakistan on 2010-04-01.
# >
# > Then today, the president said that they might have to revert the
# > decision if it is not supported by the parliament. So at the time
# > being, it seems unclear if DST will be actually observed or not - but
# > April 1 could be a more likely date than April 15.
# Now, it seems that the decision to not observe DST in final:
#
# "Govt Withdraws Plan To Advance Clocks"
# http://www.apakistannews.com/govt-withdraws-plan-to-advance-clocks-172041
#
# "People laud PM's announcement to end DST"
# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=99374&Itemid=2
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Pakistan 2002 only - Apr Sun>=2 0:01 1:00 S
Rule Pakistan 2002 only - Oct Sun>=2 0:01 0 -
Rule Pakistan 2008 only - Jun 1 0:00 1:00 S
Rule Pakistan 2008 only - Nov 1 0:00 0 -
Rule Pakistan 2009 only - Apr 15 0:00 1:00 S
Rule Pakistan 2009 only - Nov 1 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Karachi 4:28:12 - LMT 1907
5:30 - IST 1942 Sep
5:30 1:00 IST 1945 Oct 15
5:30 - IST 1951 Sep 30
5:00 - KART 1971 Mar 26 # Karachi Time
5:00 Pakistan PK%sT # Pakistan Time
# Palestine
# From Amos Shapir (1998-02-15):
#
# From 1917 until 1948-05-15, all of Palestine, including the parts now
# known as the Gaza Strip and the West Bank, was under British rule.
# Therefore the rules given for Israel for that period, apply there too...
#
# The Gaza Strip was under Egyptian rule between 1948-05-15 until 1967-06-05
# (except a short occupation by Israel from 1956-11 till 1957-03, but no
# time zone was affected then). It was never formally annexed to Egypt,
# though.
#
# The rest of Palestine was under Jordanian rule at that time, formally
# annexed in 1950 as the West Bank (and the word "Trans" was dropped from
# the country's previous name of "the Hashemite Kingdom of the
# Trans-Jordan"). So the rules for Jordan for that time apply. Major
# towns in that area are Nablus (Shchem), El-Halil (Hebron), Ramallah, and
# East Jerusalem.
#
# Both areas were occupied by Israel in June 1967, but not annexed (except
# for East Jerusalem). They were on Israel time since then; there might
# have been a Military Governor's order about time zones, but I'm not aware
# of any (such orders may have been issued semi-annually whenever summer
# time was in effect, but maybe the legal aspect of time was just neglected).
#
# The Palestinian Authority was established in 1993, and got hold of most
# towns in the West Bank and Gaza by 1995. I know that in order to
# demonstrate...independence, they have been switching to
# summer time and back on a different schedule than Israel's, but I don't
# know when this was started, or what algorithm is used (most likely the
# Jordanian one).
#
# To summarize, the table should probably look something like that:
#
# Area \ when | 1918-1947 | 1948-1967 | 1967-1995 | 1996-
# ------------+-----------+-----------+-----------+-----------
# Israel | Zion | Zion | Zion | Zion
# West bank | Zion | Jordan | Zion | Jordan
# Gaza | Zion | Egypt | Zion | Jordan
#
# I guess more info may be available from the PA's web page (if/when they
# have one).
# From Paul Eggert (2006-03-22):
# Shanks & Pottenger write that Gaza did not observe DST until 1957, but go
# with Shapir and assume that it observed DST from 1940 through 1947,
# and that it used Jordanian rules starting in 1996.
# We don't yet need a separate entry for the West Bank, since
# the only differences between it and Gaza that we know about
# occurred before our cutoff date of 1970.
# However, as we get more information, we may need to add entries
# for parts of the West Bank as they transitioned from Israel's rules
# to Palestine's rules.
# From IINS News Service - Israel - 1998-03-23 10:38:07 Israel time,
# forwarded by Ephraim Silverberg:
#
# Despite the fact that Israel changed over to daylight savings time
# last week, the PLO Authority (PA) has decided not to turn its clocks
# one-hour forward at this time. As a sign of independence from Israeli rule,
# the PA has decided to implement DST in April.
# From Paul Eggert (1999-09-20):
# Daoud Kuttab writes in Holiday havoc
#
# (Jerusalem Post, 1999-04-22) that
# the Palestinian National Authority changed to DST on 1999-04-15.
# I vaguely recall that they switch back in October (sorry, forgot the source).
# For now, let's assume that the spring switch was at 24:00,
# and that they switch at 0:00 on the 3rd Fridays of April and October.
# From Paul Eggert (2005-11-22):
# Starting 2004 transitions are from Steffen Thorsen's web site timeanddate.com.
# From Steffen Thorsen (2005-11-23):
# A user from Gaza reported that Gaza made the change early because of
# the Ramadan. Next year Ramadan will be even earlier, so I think
# there is a good chance next year's end date will be around two weeks
# earlier - the same goes for Jordan.
# From Steffen Thorsen (2006-08-17):
# I was informed by a user in Bethlehem that in Bethlehem it started the
# same day as Israel, and after checking with other users in the area, I
# was informed that they started DST one day after Israel. I was not
# able to find any authoritative sources at the time, nor details if
# Gaza changed as well, but presumed Gaza to follow the same rules as
# the West Bank.
# From Steffen Thorsen (2006-09-26):
# according to the Palestine News Network (2006-09-19):
# http://english.pnn.ps/index.php?option=com_content&task=view&id=596&Itemid=5
# > The Council of Ministers announced that this year its winter schedule
# > will begin early, as of midnight Thursday. It is also time to turn
# > back the clocks for winter. Friday will begin an hour late this week.
# I guess it is likely that next year's date will be moved as well,
# because of the Ramadan.
# From Jesper Nørgaard Welen (2007-09-18):
# According to Steffen Thorsen's web site the Gaza Strip and the rest of the
# Palestinian territories left DST early on 13.th. of September at 2:00.
# From Paul Eggert (2007-09-20):
# My understanding is that Gaza and the West Bank disagree even over when
# the weekend is (Thursday+Friday versus Friday+Saturday), so I'd be a bit
# surprised if they agreed about DST. But for now, assume they agree.
# For lack of better information, predict that future changes will be
# the 2nd Thursday of September at 02:00.
# From Alexander Krivenyshev (2008-08-28):
# Here is an article, that Mideast running on different clocks at Ramadan.
#
# Gaza Strip (as Egypt) ended DST at midnight Thursday (Aug 28, 2008), while
# the West Bank will end Daylight Saving Time at midnight Sunday (Aug 31, 2008).
#
# http://www.guardian.co.uk/world/feedarticle/7759001
# http://www.abcnews.go.com/International/wireStory?id=5676087
# http://www.worldtimezone.com/dst_news/dst_news_gazastrip01.html
# From Alexander Krivenyshev (2009-03-26):
# According to the Palestine News Network (arabic.pnn.ps), Palestinian
# government decided to start Daylight Time on Thursday night March
# 26 and continue until the night of 27 September 2009.
#
# (in Arabic)
# http://arabic.pnn.ps/index.php?option=com_content&task=view&id=50850
#
# (English translation)
# http://www.worldtimezone.com/dst_news/dst_news_westbank01.html
# From Steffen Thorsen (2009-08-31):
# Palestine's Council of Ministers announced that they will revert back to
# winter time on Friday, 2009-09-04.
#
# One news source:
# http://www.safa.ps/ara/?action=showdetail&seid=4158
# (Palestinian press agency, Arabic),
# Google translate: "Decided that the Palestinian government in Ramallah
# headed by Salam Fayyad, the start of work in time for the winter of
# 2009, starting on Friday approved the fourth delay Sept. clock sixty
# minutes per hour as of Friday morning."
#
# We are not sure if Gaza will do the same, last year they had a different
# end date, we will keep this page updated:
# http://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html
# From Alexander Krivenyshev (2009-09-02):
# Seems that Gaza Strip will go back to Winter Time same date as West Bank.
#
# According to Palestinian Ministry Of Interior, West Bank and Gaza Strip plan
# to change time back to Standard time on September 4, 2009.
#
# "Winter time unite the West Bank and Gaza"
# (from Palestinian National Authority):
# http://www.moi.gov.ps/en/?page=633167343250594025&nid=11505
# http://www.worldtimezone.com/dst_news/dst_news_gazastrip02.html
# From Alexander Krivenyshev (2010-03-19):
# According to Voice of Palestine DST will last for 191 days, from March
# 26, 2010 till "the last Sunday before the tenth day of Tishri
# (October), each year" (October 03, 2010?)
#
# http://palvoice.org/forums/showthread.php?t=245697
# (in Arabic)
# http://www.worldtimezone.com/dst_news/dst_news_westbank03.html
# From Steffen Thorsen (2010-03-24):
# ...Ma'an News Agency reports that Hamas cabinet has decided it will
# start one day later, at 12:01am. Not sure if they really mean 12:01am or
# noon though:
#
# http://www.maannews.net/eng/ViewDetails.aspx?ID=271178
# (Ma'an News Agency)
# "At 12:01am Friday, clocks in Israel and the West Bank will change to
# 1:01am, while Gaza clocks will change at 12:01am Saturday morning."
# From Steffen Thorsen (2010-08-11):
# According to several sources, including
# http://www.maannews.net/eng/ViewDetails.aspx?ID=306795
# the clocks were set back one hour at 2010-08-11 00:00:00 local time in
# Gaza and the West Bank.
# Some more background info:
# http://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html
# From Steffen Thorsen (2011-08-26):
# Gaza and the West Bank did go back to standard time in the beginning of
# August, and will now enter daylight saving time again on 2011-08-30
# 00:00 (so two periods of DST in 2011). The pause was because of
# Ramadan.
#
# http://www.maannews.net/eng/ViewDetails.aspx?ID=416217
# Additional info:
# http://www.timeanddate.com/news/time/palestine-dst-2011.html
# From Alexander Krivenyshev (2011-08-27):
# According to the article in The Jerusalem Post:
# "...Earlier this month, the Palestinian government in the West Bank decided to
# move to standard time for 30 days, during Ramadan. The Palestinians in the
# Gaza Strip accepted the change and also moved their clocks one hour back.
# The Hamas government said on Saturday that it won't observe summertime after
# the Muslim feast of Id al-Fitr, which begins on Tuesday..."
# ...
# http://www.jpost.com/MiddleEast/Article.aspx?id=235650
# http://www.worldtimezone.com/dst_news/dst_news_gazastrip05.html
# The rules for Egypt are stolen from the 'africa' file.
# From Steffen Thorsen (2011-09-30):
# West Bank did end Daylight Saving Time this morning/midnight (2011-09-30
# 00:00).
# So West Bank and Gaza now have the same time again.
#
# Many sources, including:
# http://www.maannews.net/eng/ViewDetails.aspx?ID=424808
# From Steffen Thorsen (2012-03-26):
# Palestinian news sources tell that both Gaza and West Bank will start DST
# on Friday (Thursday midnight, 2012-03-29 24:00).
# Some of many sources in Arabic:
# http://www.samanews.com/index.php?act=Show&id=122638
#
# http://safa.ps/details/news/74352/%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%AA%D9%88%D9%82%D9%8A%D8%AA-%D8%A7%D9%84%D8%B5%D9%8A%D9%81%D9%8A-%D8%A8%D8%A7%D9%84%D8%B6%D9%81%D8%A9-%D9%88%D8%BA%D8%B2%D8%A9-%D9%84%D9%8A%D9%84%D8%A9-%D8%A7%D9%84%D8%AC%D9%85%D8%B9%D8%A9.html
#
# Our brief summary:
# http://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html
# From Steffen Thorsen (2013-03-26):
# The following news sources tells that Palestine will "start daylight saving
# time from midnight on Friday, March 29, 2013" (translated).
# [These are in Arabic and are for Gaza and for Ramallah, respectively.]
# http://www.samanews.com/index.php?act=Show&id=154120
# http://safa.ps/details/news/99844/%D8%B1%D8%A7%D9%85-%D8%A7%D9%84%D9%84%D9%87-%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%AA%D9%88%D9%82%D9%8A%D8%AA-%D8%A7%D9%84%D8%B5%D9%8A%D9%81%D9%8A-29-%D8%A7%D9%84%D8%AC%D8%A7%D8%B1%D9%8A.html
# From Steffen Thorsen (2013-09-24):
# The Gaza and West Bank are ending DST Thursday at midnight
# (2013-09-27 00:00:00) (one hour earlier than last year...).
# This source in English, says "that winter time will go into effect
# at midnight on Thursday in the West Bank and Gaza Strip":
# http://english.wafa.ps/index.php?action=detail&id=23246
# official source...:
# http://www.palestinecabinet.gov.ps/ar/Views/ViewDetails.aspx?pid=1252
# From Paul Eggert (2013-09-24):
# For future dates, guess the last Thursday in March at 24:00 through
# the first Friday on or after September 21 at 00:00. This is consistent with
# the predictions in today's editions of the following URLs,
# which are for Gaza and Hebron respectively:
# http://www.timeanddate.com/worldclock/timezone.html?n=702
# http://www.timeanddate.com/worldclock/timezone.html?n=2364
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule EgyptAsia 1957 only - May 10 0:00 1:00 S
Rule EgyptAsia 1957 1958 - Oct 1 0:00 0 -
Rule EgyptAsia 1958 only - May 1 0:00 1:00 S
Rule EgyptAsia 1959 1967 - May 1 1:00 1:00 S
Rule EgyptAsia 1959 1965 - Sep 30 3:00 0 -
Rule EgyptAsia 1966 only - Oct 1 3:00 0 -
Rule Palestine 1999 2005 - Apr Fri>=15 0:00 1:00 S
Rule Palestine 1999 2003 - Oct Fri>=15 0:00 0 -
Rule Palestine 2004 only - Oct 1 1:00 0 -
Rule Palestine 2005 only - Oct 4 2:00 0 -
Rule Palestine 2006 2007 - Apr 1 0:00 1:00 S
Rule Palestine 2006 only - Sep 22 0:00 0 -
Rule Palestine 2007 only - Sep Thu>=8 2:00 0 -
Rule Palestine 2008 2009 - Mar lastFri 0:00 1:00 S
Rule Palestine 2008 only - Sep 1 0:00 0 -
Rule Palestine 2009 only - Sep Fri>=1 1:00 0 -
Rule Palestine 2010 only - Mar 26 0:00 1:00 S
Rule Palestine 2010 only - Aug 11 0:00 0 -
Rule Palestine 2011 only - Apr 1 0:01 1:00 S
Rule Palestine 2011 only - Aug 1 0:00 0 -
Rule Palestine 2011 only - Aug 30 0:00 1:00 S
Rule Palestine 2011 only - Sep 30 0:00 0 -
Rule Palestine 2012 max - Mar lastThu 24:00 1:00 S
Rule Palestine 2012 only - Sep 21 1:00 0 -
Rule Palestine 2013 max - Sep Fri>=21 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Gaza 2:17:52 - LMT 1900 Oct
2:00 Zion EET 1948 May 15
2:00 EgyptAsia EE%sT 1967 Jun 5
2:00 Zion I%sT 1996
2:00 Jordan EE%sT 1999
2:00 Palestine EE%sT 2008 Aug 29 0:00
2:00 - EET 2008 Sep
2:00 Palestine EE%sT 2010
2:00 - EET 2010 Mar 27 0:01
2:00 Palestine EE%sT 2011 Aug 1
2:00 - EET 2012
2:00 Palestine EE%sT
Zone Asia/Hebron 2:20:23 - LMT 1900 Oct
2:00 Zion EET 1948 May 15
2:00 EgyptAsia EE%sT 1967 Jun 5
2:00 Zion I%sT 1996
2:00 Jordan EE%sT 1999
2:00 Palestine EE%sT
# Paracel Is
# no information
# Philippines
# On 1844-08-16, Narciso Clavería, governor-general of the
# Philippines, issued a proclamation announcing that 1844-12-30 was to
# be immediately followed by 1845-01-01; see R.H. van Gent's
# History of the International Date Line
# .
# The rest of the data are from Shanks & Pottenger.
# From Paul Eggert (2006-04-25):
# Tomorrow's Manila Standard reports that the Philippines Department of
# Trade and Industry is considering adopting DST this June when the
# rainy season begins. See
# .
# For now, we'll ignore this, since it's not definite and we lack details.
#
# From Jesper Nørgaard Welen (2006-04-26):
# ... claims that Philippines had DST last time in 1990:
# http://story.philippinetimes.com/p.x/ct/9/id/145be20cc6b121c0/cid/3e5bbccc730d258c/
# [a story dated 2006-04-25 by Cris Larano of Dow Jones Newswires,
# but no details]
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Phil 1936 only - Nov 1 0:00 1:00 S
Rule Phil 1937 only - Feb 1 0:00 0 -
Rule Phil 1954 only - Apr 12 0:00 1:00 S
Rule Phil 1954 only - Jul 1 0:00 0 -
Rule Phil 1978 only - Mar 22 0:00 1:00 S
Rule Phil 1978 only - Sep 21 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31
8:04:00 - LMT 1899 May 11
8:00 Phil PH%sT 1942 May
9:00 - JST 1944 Nov
8:00 Phil PH%sT
# Qatar
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha
4:00 - GST 1972 Jun
3:00 - AST
# Saudi Arabia
#
# From Paul Eggert (2014-07-15):
# Time in Saudi Arabia and other countries in the Arabian peninsula was not
# standardized until relatively recently; we don't know when, and possibly it
# has never been made official. Richard P Hunt, in "Islam city yielding to
# modern times", New York Times (1961-04-09), p 20, wrote that only airlines
# observed standard time, and that people in Jeddah mostly observed quasi-solar
# time, doing so by setting their watches at sunrise to 6 o'clock (or to 12
# o'clock for "Arab" time).
#
# The TZ database cannot represent quasi-solar time; airline time is the best
# we can do. The 1946 foreign air news digest of the U.S. Civil Aeronautics
# Board (OCLC 42299995) reported that the "... Arabian Government, inaugurated
# a weekly Dhahran-Cairo service, via the Saudi Arabian cities of Riyadh and
# Jidda, on March 14, 1947". Shanks & Pottenger guessed 1950; go with the
# earlier date.
#
# Shanks & Pottenger also state that until 1968-05-01 Saudi Arabia had two
# time zones; the other zone, at UTC+4, was in the far eastern part of
# the country. Ignore this, as it's before our 1970 cutoff.
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Riyadh 3:06:52 - LMT 1947 Mar 14
3:00 - AST
# Singapore
# The data here are taken from Mok Ly Yng (2003-10-30)
# .
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1
6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
7:00 - MALT 1933 Jan 1 # Malaya Time
7:00 0:20 MALST 1936 Jan 1
7:20 - MALT 1941 Sep 1
7:30 - MALT 1942 Feb 16
9:00 - JST 1945 Sep 12
7:30 - MALT 1965 Aug 9 # independence
7:30 - SGT 1982 Jan 1 # Singapore Time
8:00 - SGT
# Spratly Is
# no information
# Sri Lanka
# From Paul Eggert (2013-02-21):
# Milne says "Madras mean time use from May 1, 1898. Prior to this Colombo
# mean time, 5h. 4m. 21.9s. F., was used." But 5:04:21.9 differs considerably
# from Colombo's meridian 5:19:24, so for now ignore Milne and stick with
# Shanks and Pottenger.
# From Paul Eggert (1996-09-03):
# "Sri Lanka advances clock by an hour to avoid blackout"
# (, 1996-05-24,
# no longer available as of 1999-08-17)
# reported "the country's standard time will be put forward by one hour at
# midnight Friday (1830 GMT) 'in the light of the present power crisis'."
#
# From Dharmasiri Senanayake, Sri Lanka Media Minister (1996-10-24), as quoted
# by Shamindra in Daily News - Hot News Section
# (1996-10-26):
# With effect from 12.30 a.m. on 26th October 1996
# Sri Lanka will be six (06) hours ahead of GMT.
# From Jesper Nørgaard Welen (2006-04-14), quoting Sri Lanka News Online
# (2006-04-13):
# 0030 hrs on April 15, 2006 (midnight of April 14, 2006 +30 minutes)
# at present, become 2400 hours of April 14, 2006 (midnight of April 14, 2006).
# From Peter Apps and Ranga Sirila of Reuters (2006-04-12) in:
#
# [The Tamil Tigers] never accepted the original 1996 time change and simply
# kept their clocks set five and a half hours ahead of Greenwich Mean
# Time (GMT), in line with neighbor India.
# From Paul Eggert (2006-04-18):
# People who live in regions under Tamil control can use [TZ='Asia/Kolkata'],
# as that zone has agreed with the Tamil areas since our cutoff date of 1970.
# From K Sethu (2006-04-25):
# I think the abbreviation LKT originated from the world of computers at
# the time of or subsequent to the time zone changes by SL Government
# twice in 1996 and probably SL Government or its standardization
# agencies never declared an abbreviation as a national standard.
#
# I recollect before the recent change the government announcements
# mentioning it as simply changing Sri Lanka Standard Time or Sri Lanka
# Time and no mention was made about the abbreviation.
#
# If we look at Sri Lanka Department of Government's "Official News
# Website of Sri Lanka" ... http://www.news.lk/ we can see that they
# use SLT as abbreviation in time stamp at the beginning of each news
# item....
#
# Within Sri Lanka I think LKT is well known among computer users and
# administrators. In my opinion SLT may not be a good choice because the
# nation's largest telcom / internet operator Sri Lanka Telcom is well
# known by that abbreviation - simply as SLT (there IP domains are
# slt.lk and sltnet.lk).
#
# But if indeed our government has adopted SLT as standard abbreviation
# (that we have not known so far) then it is better that it be used for
# all computers.
# From Paul Eggert (2006-04-25):
# One possibility is that we wait for a bit for the dust to settle down
# and then see what people actually say in practice.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Colombo 5:19:24 - LMT 1880
5:19:32 - MMT 1906 # Moratuwa Mean Time
5:30 - IST 1942 Jan 5
5:30 0:30 IHST 1942 Sep
5:30 1:00 IST 1945 Oct 16 2:00
5:30 - IST 1996 May 25 0:00
6:30 - LKT 1996 Oct 26 0:30
6:00 - LKT 2006 Apr 15 0:30
5:30 - IST
# Syria
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Syria 1920 1923 - Apr Sun>=15 2:00 1:00 S
Rule Syria 1920 1923 - Oct Sun>=1 2:00 0 -
Rule Syria 1962 only - Apr 29 2:00 1:00 S
Rule Syria 1962 only - Oct 1 2:00 0 -
Rule Syria 1963 1965 - May 1 2:00 1:00 S
Rule Syria 1963 only - Sep 30 2:00 0 -
Rule Syria 1964 only - Oct 1 2:00 0 -
Rule Syria 1965 only - Sep 30 2:00 0 -
Rule Syria 1966 only - Apr 24 2:00 1:00 S
Rule Syria 1966 1976 - Oct 1 2:00 0 -
Rule Syria 1967 1978 - May 1 2:00 1:00 S
Rule Syria 1977 1978 - Sep 1 2:00 0 -
Rule Syria 1983 1984 - Apr 9 2:00 1:00 S
Rule Syria 1983 1984 - Oct 1 2:00 0 -
Rule Syria 1986 only - Feb 16 2:00 1:00 S
Rule Syria 1986 only - Oct 9 2:00 0 -
Rule Syria 1987 only - Mar 1 2:00 1:00 S
Rule Syria 1987 1988 - Oct 31 2:00 0 -
Rule Syria 1988 only - Mar 15 2:00 1:00 S
Rule Syria 1989 only - Mar 31 2:00 1:00 S
Rule Syria 1989 only - Oct 1 2:00 0 -
Rule Syria 1990 only - Apr 1 2:00 1:00 S
Rule Syria 1990 only - Sep 30 2:00 0 -
Rule Syria 1991 only - Apr 1 0:00 1:00 S
Rule Syria 1991 1992 - Oct 1 0:00 0 -
Rule Syria 1992 only - Apr 8 0:00 1:00 S
Rule Syria 1993 only - Mar 26 0:00 1:00 S
Rule Syria 1993 only - Sep 25 0:00 0 -
# IATA SSIM (1998-02) says 1998-04-02;
# (1998-09) says 1999-03-29 and 1999-09-29; (1999-02) says 1999-04-02,
# 2000-04-02, and 2001-04-02; (1999-09) says 2000-03-31 and 2001-03-31;
# (2006) says 2006-03-31 and 2006-09-22;
# for now ignore all these claims and go with Shanks & Pottenger,
# except for the 2006-09-22 claim (which seems right for Ramadan).
Rule Syria 1994 1996 - Apr 1 0:00 1:00 S
Rule Syria 1994 2005 - Oct 1 0:00 0 -
Rule Syria 1997 1998 - Mar lastMon 0:00 1:00 S
Rule Syria 1999 2006 - Apr 1 0:00 1:00 S
# From Stephen Colebourne (2006-09-18):
# According to IATA data, Syria will change DST on 21st September [21:00 UTC]
# this year [only].... This is probably related to Ramadan, like Egypt.
Rule Syria 2006 only - Sep 22 0:00 0 -
# From Paul Eggert (2007-03-29):
# Today the AP reported "Syria will switch to summertime at midnight Thursday."
# http://www.iht.com/articles/ap/2007/03/29/africa/ME-GEN-Syria-Time-Change.php
Rule Syria 2007 only - Mar lastFri 0:00 1:00 S
# From Jesper Nørgaard (2007-10-27):
# The sister center ICARDA of my work CIMMYT is confirming that Syria DST will
# not take place 1st November at 0:00 o'clock but 1st November at 24:00 or
# rather Midnight between Thursday and Friday. This does make more sense than
# having it between Wednesday and Thursday (two workdays in Syria) since the
# weekend in Syria is not Saturday and Sunday, but Friday and Saturday. So now
# it is implemented at midnight of the last workday before weekend...
#
# From Steffen Thorsen (2007-10-27):
# Jesper Nørgaard Welen wrote:
#
# > "Winter local time in Syria will be observed at midnight of Thursday 1
# > November 2007, and the clock will be put back 1 hour."
#
# I found confirmation on this in this gov.sy-article (Arabic):
# http://wehda.alwehda.gov.sy/_print_veiw.asp?FileName=12521710520070926111247
#
# which using Google's translate tools says:
# Council of Ministers also approved the commencement of work on
# identifying the winter time as of Friday, 2/11/2007 where the 60th
# minute delay at midnight Thursday 1/11/2007.
Rule Syria 2007 only - Nov Fri>=1 0:00 0 -
# From Stephen Colebourne (2008-03-17):
# For everyone's info, I saw an IATA time zone change for [Syria] for
# this month (March 2008) in the last day or so...This is the data IATA
# are now using:
# Country Time Standard --- DST Start --- --- DST End --- DST
# Name Zone Variation Time Date Time Date
# Variation
# Syrian Arab
# Republic SY +0200 2200 03APR08 2100 30SEP08 +0300
# 2200 02APR09 2100 30SEP09 +0300
# 2200 01APR10 2100 30SEP10 +0300
# From Arthur David Olson (2008-03-17):
# Here's a link to English-language coverage by the Syrian Arab News
# Agency (SANA)...
# http://www.sana.sy/eng/21/2008/03/11/165173.htm
# ...which reads (in part) "The Cabinet approved the suggestion of the
# Ministry of Electricity to begin daylight savings time on Friday April
# 4th, advancing clocks one hour ahead on midnight of Thursday April 3rd."
# Since Syria is two hours east of UTC, the 2200 and 2100 transition times
# shown above match up with midnight in Syria.
# From Arthur David Olson (2008-03-18):
# My best guess at a Syrian rule is "the Friday nearest April 1";
# coding that involves either using a "Mar Fri>=29" construct that old time zone
# compilers can't handle or having multiple Rules (a la Israel).
# For now, use "Apr Fri>=1", and go with IATA on a uniform Sep 30 end.
# From Steffen Thorsen (2008-10-07):
# Syria has now officially decided to end DST on 2008-11-01 this year,
# according to the following article in the Syrian Arab News Agency (SANA).
#
# The article is in Arabic, and seems to tell that they will go back to
# winter time on 2008-11-01 at 00:00 local daylight time (delaying/setting
# clocks back 60 minutes).
#
# http://sana.sy/ara/2/2008/10/07/195459.htm
# From Steffen Thorsen (2009-03-19):
# Syria will start DST on 2009-03-27 00:00 this year according to many sources,
# two examples:
#
# http://www.sana.sy/eng/21/2009/03/17/217563.htm
# (English, Syrian Arab News # Agency)
# http://thawra.alwehda.gov.sy/_View_news2.asp?FileName=94459258720090318012209
# (Arabic, gov-site)
#
# We have not found any sources saying anything about when DST ends this year.
#
# Our summary
# http://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html
# From Steffen Thorsen (2009-10-27):
# The Syrian Arab News Network on 2009-09-29 reported that Syria will
# revert back to winter (standard) time on midnight between Thursday
# 2009-10-29 and Friday 2009-10-30:
# http://www.sana.sy/ara/2/2009/09/29/247012.htm (Arabic)
# From Arthur David Olson (2009-10-28):
# We'll see if future DST switching times turn out to be end of the last
# Thursday of the month or the start of the last Friday of the month or
# something else. For now, use the start of the last Friday.
# From Steffen Thorsen (2010-03-17):
# The "Syrian News Station" reported on 2010-03-16 that the Council of
# Ministers has decided that Syria will start DST on midnight Thursday
# 2010-04-01: (midnight between Thursday and Friday):
# http://sns.sy/sns/?path=news/read/11421 (Arabic)
# From Steffen Thorsen (2012-03-26):
# Today, Syria's government announced that they will start DST early on Friday
# (00:00). This is a bit earlier than the past two years.
#
# From Syrian Arab News Agency, in Arabic:
# http://www.sana.sy/ara/2/2012/03/26/408215.htm
#
# Our brief summary:
# http://www.timeanddate.com/news/time/syria-dst-2012.html
# From Arthur David Olson (2012-03-27):
# Assume last Friday in March going forward XXX.
Rule Syria 2008 only - Apr Fri>=1 0:00 1:00 S
Rule Syria 2008 only - Nov 1 0:00 0 -
Rule Syria 2009 only - Mar lastFri 0:00 1:00 S
Rule Syria 2010 2011 - Apr Fri>=1 0:00 1:00 S
Rule Syria 2012 max - Mar lastFri 0:00 1:00 S
Rule Syria 2009 max - Oct lastFri 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq
2:00 Syria EE%sT
# Tajikistan
# From Shanks & Pottenger.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2
5:00 - DUST 1930 Jun 21 # Dushanbe Time
6:00 RussiaAsia DUS%sT 1991 Mar 31 2:00s
5:00 1:00 DUSST 1991 Sep 9 2:00s
5:00 - TJT # Tajikistan Time
# Thailand
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Bangkok 6:42:04 - LMT 1880
6:42:04 - BMT 1920 Apr # Bangkok Mean Time
7:00 - ICT
# Turkmenistan
# From Shanks & Pottenger.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Ashgabat 3:53:32 - LMT 1924 May 2 # or Ashkhabad
4:00 - ASHT 1930 Jun 21 # Ashkhabad Time
5:00 RussiaAsia ASH%sT 1991 Mar 31 2:00
4:00 RussiaAsia ASH%sT 1991 Oct 27 # independence
4:00 RussiaAsia TM%sT 1992 Jan 19 2:00
5:00 - TMT
# United Arab Emirates
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Dubai 3:41:12 - LMT 1920
4:00 - GST
# Uzbekistan
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Samarkand 4:27:12 - LMT 1924 May 2
4:00 - SAMT 1930 Jun 21 # Samarkand Time
5:00 - SAMT 1981 Apr 1
5:00 1:00 SAMST 1981 Oct 1
6:00 - TAST 1982 Apr 1 # Tashkent Time
5:00 RussiaAsia SAM%sT 1991 Sep 1 # independence
5:00 RussiaAsia UZ%sT 1992
5:00 - UZT
# Milne says Tashkent was 4:37:10.8; round to nearest.
Zone Asia/Tashkent 4:37:11 - LMT 1924 May 2
5:00 - TAST 1930 Jun 21 # Tashkent Time
6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00
5:00 RussiaAsia TAS%sT 1991 Sep 1 # independence
5:00 RussiaAsia UZ%sT 1992
5:00 - UZT
# Vietnam
# From Paul Eggert (2013-02-21):
# Milne gives 7:16:56 for the meridian of Saigon in 1899, as being
# used in Lower Laos, Cambodia, and Annam. But this is quite a ways
# from Saigon's location. For now, ignore this and stick with Shanks
# and Pottenger.
# From Arthur David Olson (2008-03-18):
# The English-language name of Vietnam's most populous city is "Ho Chi Minh
# City"; use Ho_Chi_Minh below to avoid a name of more than 14 characters.
# From Shanks & Pottenger:
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jun 9
7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
7:00 - ICT 1912 May
8:00 - ICT 1931 May
7:00 - ICT
# Yemen
# Milne says 2:59:54 was the meridian of the saluting battery at Aden,
# and that Yemen was at 1:55:56, the meridian of the Hagia Sophia.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Aden 2:59:54 - LMT 1950
3:00 - AST
@
1.1.1.1.2.1
log
@file asia was added on branch tls-earlyentropy on 2014-08-10 06:51:01 +0000
@
text
@d1 2791
@
1.1.1.1.2.2
log
@Rebase.
@
text
@a0 2791
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.
# This data is by no means authoritative; if you think you know better,
# go ahead and edit the file (and please send any changes to
# tz@@iana.org for general use in the future).
# From Paul Eggert (2013-08-11):
#
# A good source for time zone historical data outside the U.S. is
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
# San Diego: ACS Publications, Inc. (2003).
#
# Gwillim Law writes that a good source
# for recent time zone data is the International Air Transport
# Association's Standard Schedules Information Manual (IATA SSIM),
# published semiannually. Law sent in several helpful summaries
# of the IATA's data after 1990.
#
# Except where otherwise noted, Shanks & Pottenger is the source for
# entries through 1990, and IATA SSIM is the source for entries afterwards.
#
# Another source occasionally used is Edward W. Whitman, World Time Differences,
# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
# I found in the UCLA library.
#
# For data circa 1899, a common source is:
# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
# .
#
# A reliable and entertaining source about time zones is
# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
#
# I invented the abbreviations marked '*' in the following table;
# the rest are from earlier versions of this file, or from other sources.
# Corrections are welcome!
# std dst
# LMT Local Mean Time
# 2:00 EET EEST Eastern European Time
# 2:00 IST IDT Israel
# 3:00 AST ADT Arabia*
# 3:30 IRST IRDT Iran
# 4:00 GST Gulf*
# 5:30 IST India
# 7:00 ICT Indochina*
# 7:00 WIB west Indonesia (Waktu Indonesia Barat)
# 8:00 WITA central Indonesia (Waktu Indonesia Tengah)
# 8:00 CST China
# 8:00 JWST Western Standard Time (Japan, 1896/1937)*
# 9:00 JCST Central Standard Time (Japan, 1896/1937)
# 9:00 WIT east Indonesia (Waktu Indonesia Timur)
# 9:00 JST JDT Japan
# 9:00 KST KDT Korea
# 9:30 ACST Australian Central Standard Time
#
# See the 'europe' file for Russia and Turkey in Asia.
# From Guy Harris:
# Incorporates data for Singapore from Robert Elz' asia 1.1, as well as
# additional information from Tom Yap, Sun Microsystems Intercontinental
# Technical Support (including a page from the Official Airline Guide -
# Worldwide Edition). The names for time zones are guesses.
###############################################################################
# These rules are stolen from the 'europe' file.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule EUAsia 1981 max - Mar lastSun 1:00u 1:00 S
Rule EUAsia 1979 1995 - Sep lastSun 1:00u 0 -
Rule EUAsia 1996 max - Oct lastSun 1:00u 0 -
Rule E-EurAsia 1981 max - Mar lastSun 0:00 1:00 S
Rule E-EurAsia 1979 1995 - Sep lastSun 0:00 0 -
Rule E-EurAsia 1996 max - Oct lastSun 0:00 0 -
Rule RussiaAsia 1981 1984 - Apr 1 0:00 1:00 S
Rule RussiaAsia 1981 1983 - Oct 1 0:00 0 -
Rule RussiaAsia 1984 1991 - Sep lastSun 2:00s 0 -
Rule RussiaAsia 1985 1991 - Mar lastSun 2:00s 1:00 S
Rule RussiaAsia 1992 only - Mar lastSat 23:00 1:00 S
Rule RussiaAsia 1992 only - Sep lastSat 23:00 0 -
Rule RussiaAsia 1993 max - Mar lastSun 2:00s 1:00 S
Rule RussiaAsia 1993 1995 - Sep lastSun 2:00s 0 -
Rule RussiaAsia 1996 max - Oct lastSun 2:00s 0 -
# Afghanistan
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kabul 4:36:48 - LMT 1890
4:00 - AFT 1945
4:30 - AFT
# Armenia
# From Paul Eggert (2006-03-22):
# Shanks & Pottenger have Yerevan switching to 3:00 (with Russian DST)
# in spring 1991, then to 4:00 with no DST in fall 1995, then
# readopting Russian DST in 1997. Go with Shanks & Pottenger, even
# when they disagree with others. Edgar Der-Danieliantz
# reported (1996-05-04) that Yerevan probably wouldn't use DST
# in 1996, though it did use DST in 1995. IATA SSIM (1991/1998) reports that
# Armenia switched from 3:00 to 4:00 in 1998 and observed DST after 1991,
# but started switching at 3:00s in 1998.
# From Arthur David Olson (2011-06-15):
# While Russia abandoned DST in 2011, Armenia may choose to
# follow Russia's "old" rules.
# From Alexander Krivenyshev (2012-02-10):
# According to News Armenia, on Feb 9, 2012,
# http://newsarmenia.ru/society/20120209/42609695.html
#
# The Armenia National Assembly adopted final reading of Amendments to the
# Law "On procedure of calculation time on the territory of the Republic of
# Armenia" according to which Armenia [is] abolishing Daylight Saving Time.
# or
# (brief)
# http://www.worldtimezone.com/dst_news/dst_news_armenia03.html
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2
3:00 - YERT 1957 Mar # Yerevan Time
4:00 RussiaAsia YER%sT 1991 Mar 31 2:00s
3:00 1:00 YERST 1991 Sep 23 # independence
3:00 RussiaAsia AM%sT 1995 Sep 24 2:00s
4:00 - AMT 1997
4:00 RussiaAsia AM%sT 2012 Mar 25 2:00s
4:00 - AMT
# Azerbaijan
# From Rustam Aliyev of the Azerbaijan Internet Forum (2005-10-23):
# According to the resolution of Cabinet of Ministers, 1997
# Resolution available at: http://aif.az/docs/daylight_res.pdf
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Azer 1997 max - Mar lastSun 4:00 1:00 S
Rule Azer 1997 max - Oct lastSun 5:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Baku 3:19:24 - LMT 1924 May 2
3:00 - BAKT 1957 Mar # Baku Time
4:00 RussiaAsia BAK%sT 1991 Mar 31 2:00s
3:00 1:00 BAKST 1991 Aug 30 # independence
3:00 RussiaAsia AZ%sT 1992 Sep lastSat 23:00
4:00 - AZT 1996 # Azerbaijan time
4:00 EUAsia AZ%sT 1997
4:00 Azer AZ%sT
# Bahrain
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Bahrain 3:22:20 - LMT 1920 # Manamah
4:00 - GST 1972 Jun
3:00 - AST
# Bangladesh
# From Alexander Krivenyshev (2009-05-13):
# According to newspaper Asian Tribune (May 6, 2009) Bangladesh may introduce
# Daylight Saving Time from June 16 to Sept 30
#
# Bangladesh to introduce daylight saving time likely from June 16
# http://www.asiantribune.com/?q=node/17288
# http://www.worldtimezone.com/dst_news/dst_news_bangladesh02.html
#
# "... Bangladesh government has decided to switch daylight saving time from
# June
# 16 till September 30 in a bid to ensure maximum use of daylight to cope with
# crippling power crisis. "
#
# The switch will remain in effect from June 16 to Sept 30 (2009) but if
# implemented the next year, it will come in force from April 1, 2010
# From Steffen Thorsen (2009-06-02):
# They have finally decided now, but changed the start date to midnight between
# the 19th and 20th, and they have not set the end date yet.
#
# Some sources:
# http://in.reuters.com/article/southAsiaNews/idINIndia-40017620090601
# http://bdnews24.com/details.php?id=85889&cid=2
#
# Our wrap-up:
# http://www.timeanddate.com/news/time/bangladesh-daylight-saving-2009.html
# From A. N. M. Kamrus Saadat (2009-06-15):
# Finally we've got the official mail regarding DST start time where DST start
# time is mentioned as Jun 19 2009, 23:00 from BTRC (Bangladesh
# Telecommunication Regulatory Commission).
#
# No DST end date has been announced yet.
# From Alexander Krivenyshev (2009-09-25):
# Bangladesh won't go back to Standard Time from October 1, 2009,
# instead it will continue DST measure till the cabinet makes a fresh decision.
#
# Following report by same newspaper-"The Daily Star Friday":
# "DST change awaits cabinet decision-Clock won't go back by 1-hr from Oct 1"
# http://www.thedailystar.net/newDesign/news-details.php?nid=107021
# http://www.worldtimezone.com/dst_news/dst_news_bangladesh04.html
# From Steffen Thorsen (2009-10-13):
# IANS (Indo-Asian News Service) now reports:
# Bangladesh has decided that the clock advanced by an hour to make
# maximum use of daylight hours as an energy saving measure would
# "continue for an indefinite period."
#
# One of many places where it is published:
# http://www.thaindian.com/newsportal/business/bangladesh-to-continue-indefinitely-with-advanced-time_100259987.html
# From Alexander Krivenyshev (2009-12-24):
# According to Bangladesh newspaper "The Daily Star,"
# Bangladesh will change its clock back to Standard Time on Dec 31, 2009.
#
# Clock goes back 1-hr on Dec 31 night.
# http://www.thedailystar.net/newDesign/news-details.php?nid=119228
# http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html
#
# "...The government yesterday decided to put the clock back by one hour
# on December 31 midnight and the new time will continue until March 31,
# 2010 midnight. The decision came at a cabinet meeting at the Prime
# Minister's Office last night..."
# From Alexander Krivenyshev (2010-03-22):
# According to Bangladesh newspaper "The Daily Star,"
# Cabinet cancels Daylight Saving Time
# http://www.thedailystar.net/newDesign/latest_news.php?nid=22817
# http://www.worldtimezone.com/dst_news/dst_news_bangladesh06.html
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Dhaka 2009 only - Jun 19 23:00 1:00 S
Rule Dhaka 2009 only - Dec 31 23:59 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Dhaka 6:01:40 - LMT 1890
5:53:20 - HMT 1941 Oct # Howrah Mean Time?
6:30 - BURT 1942 May 15 # Burma Time
5:30 - IST 1942 Sep
6:30 - BURT 1951 Sep 30
6:00 - DACT 1971 Mar 26 # Dacca Time
6:00 - BDT 2009
6:00 Dhaka BD%sT
# Bhutan
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Thimphu 5:58:36 - LMT 1947 Aug 15 # or Thimbu
5:30 - IST 1987 Oct
6:00 - BTT # Bhutan Time
# British Indian Ocean Territory
# Whitman and the 1995 CIA time zone map say 5:00, but the
# 1997 and later maps say 6:00. Assume the switch occurred in 1996.
# We have no information as to when standard time was introduced;
# assume it occurred in 1907, the same year as Mauritius (which
# then contained the Chagos Archipelago).
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Indian/Chagos 4:49:40 - LMT 1907
5:00 - IOT 1996 # BIOT Time
6:00 - IOT
# Brunei
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
7:30 - BNT 1933
8:00 - BNT
# Burma / Myanmar
# Milne says 6:24:40 was the meridian of the time ball observatory at Rangoon.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Rangoon 6:24:40 - LMT 1880 # or Yangon
6:24:40 - RMT 1920 # Rangoon Mean Time?
6:30 - BURT 1942 May # Burma Time
9:00 - JST 1945 May 3
6:30 - MMT # Myanmar Time
# Cambodia
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jun 9
7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
7:00 - ICT 1912 May
8:00 - ICT 1931 May
7:00 - ICT
# China
# From Guy Harris:
# People's Republic of China. Yes, they really have only one time zone.
# From Bob Devine (1988-01-28):
# No they don't. See TIME mag, 1986-02-17 p.52. Even though
# China is across 4 physical time zones, before Feb 1, 1986 only the
# Peking (Beijing) time zone was recognized. Since that date, China
# has two of 'em - Peking's and Ürümqi (named after the capital of
# the Xinjiang Uyghur Autonomous Region). I don't know about DST for it.
#
# . . .I just deleted the DST table and this editor makes it too
# painful to suck in another copy. So, here is what I have for
# DST start/end dates for Peking's time zone (info from AP):
#
# 1986 May 4 - Sept 14
# 1987 mid-April - ??
# From U. S. Naval Observatory (1989-01-19):
# CHINA 8 H AHEAD OF UTC ALL OF CHINA, INCL TAIWAN
# CHINA 9 H AHEAD OF UTC APR 17 - SEP 10
# From Paul Eggert (2008-02-11):
# Jim Mann, "A clumsy embrace for another western custom: China on daylight
# time - sort of", Los Angeles Times, 1986-05-05 ... [says] that China began
# observing daylight saving time in 1986.
# From Paul Eggert (2014-06-30):
# Shanks & Pottenger have China switching to a single time zone in 1980, but
# this doesn't seem to be correct. They also write that China observed summer
# DST from 1986 through 1991, which seems to match the above commentary, so
# go with them for DST rules as follows:
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Shang 1940 only - Jun 3 0:00 1:00 D
Rule Shang 1940 1941 - Oct 1 0:00 0 S
Rule Shang 1941 only - Mar 16 0:00 1:00 D
Rule PRC 1986 only - May 4 0:00 1:00 D
Rule PRC 1986 1991 - Sep Sun>=11 0:00 0 S
Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
# From Anthony Fok (2001-12-20):
# BTW, I did some research on-line and found some info regarding these five
# historic timezones from some Taiwan websites. And yes, there are official
# Chinese names for these locales (before 1949).
#
# From Jesper Nørgaard Welen (2006-07-14):
# I have investigated the timezones around 1970 on the
# http://www.astro.com/atlas site [with provinces and county
# boundaries summarized below].... A few other exceptions were two
# counties on the Sichuan side of the Xizang-Sichuan border,
# counties Dege and Baiyu which lies on the Sichuan side and are
# therefore supposed to be GMT+7, Xizang region being GMT+6, but Dege
# county is GMT+8 according to astro.com while Baiyu county is GMT+6
# (could be true), for the moment I am assuming that those two
# counties are mistakes in the astro.com data.
# From Paul Eggert (2014-06-30):
# Alois Treindl kindly sent me translations of the following two sources:
#
# (1)
# Guo Qingsheng (National Time-Service Center, CAS, Xi'an 710600, China)
# Beijing Time at the Beginning of the PRC
# China Historical Materials of Science and Technology
# (Zhongguo ke ji shi liao, 中国科技史料), Vol. 24, No. 1 (2003)
# It gives evidence that at the beginning of the PRC, Beijing time was
# officially apparent solar time! However, Guo also says that the
# evidence is dubious, as the relevant institute of astronomy had not
# been taken over by the PRC yet. It's plausible that apparent solar
# time was announced but never implemented, and that people continued
# to use UT+8. As the Shanghai radio station (and I presume the
# observatory) was still under control of French missionaries, it
# could well have ignored any such mandate.
#
# (2)
# Guo Qing-sheng (Shaanxi Astronomical Observatory, CAS, Xi'an 710600, China)
# A Study on the Standard Time Changes for the Past 100 Years in China
# [undated and unknown publication location]
# It says several things:
# * The Qing dynasty used local apparent solar time throughout China.
# * The Republic of China instituted Beijing mean solar time effective
# the official calendar book of 1914.
# * The French Concession in Shanghai set up signal stations in
# French docks in the 1890s, controled by Xujiahui (Zikawei)
# Obervatory and set to local mean time.
# * "From the end of the 19th century" it changed to UT+8.
# * Chinese Customs (by then reduced to a tool of foreign powers)
# eventually standardized on this time for all ports, and it
# became used by railways as well.
# * In 1918 the Central Observatory proposed dividing China into
# five time zones (see below for details). This caught on
# at first only in coastal areas observing UT+8.
# * During WWII all of China was in theory was at UT+7. In practice
# this was ignored in the west, and I presume was ignored in
# Japanese-occupied territory.
# * Japanese-occupied Manchuria was at UT+9, i.e., Japan time.
# * The five-zone plan was resurrected after WWII and officially put into
# place (with some modifications) in March 1948. It's not clear
# how well it was observed in areas under Nationalist control.
# * The People's Liberation Army used UT+8 during the civil war.
#
# An AP article "Shanghai Internat'l Area Little Changed" in the
# Lewiston (ME) Daily Sun (1939-05-29), p 17, said "Even the time is
# different - the occupied districts going by Tokyo time, an hour
# ahead of that prevailing in the rest of Shanghai." Guess that the
# Xujiahui Observatory was under French control and stuck with UT+8.
#
# In earlier versions of this file, China had many separate Zone entries, but
# this was based on what was apparently incorrect data in Shanks & Pottenger.
# This has now been simplified to the two entries Asia/Shanghai and
# Asia/Urumqi, with the others being links for backward compatibility.
# Proposed in 1918 and theoretically in effect until 1949 (although in practice
# mainly observed in coastal areas), the five zones were:
#
# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) UT+8.5
# Asia/Harbin (currently a link to Asia/Shanghai)
# Heilongjiang (except Mohe county), Jilin
#
# Zhongyuan Time ("Central plain Time") UT+8
# Asia/Shanghai
# most of China
# This currently represents most other zones as well,
# as apparently these regions have been the same since 1970.
# Milne gives 8:05:43.2 for Xujiahui Observatory time; round to nearest.
# Guo says Shanghai switched to UT+8 "from the end of the 19th century".
#
# Long-shu Time (probably due to Long and Shu being two names of that area) UT+7
# Asia/Chongqing (currently a link to Asia/Shanghai)
# Guangxi, Guizhou, Hainan, Ningxia, Sichuan, Shaanxi, and Yunnan;
# most of Gansu; west Inner Mongolia; west Qinghai; and the Guangdong
# counties Deqing, Enping, Kaiping, Luoding, Taishan, Xinxing,
# Yangchun, Yangjiang, Yu'nan, and Yunfu.
#
# Xin-zang Time ("Xinjiang-Tibet Time") UT+6
# Asia/Urumqi
# This currently represents Kunlun Time as well,
# as apparently the two regions have been the same since 1970.
# The Gansu counties Aksay, Anxi, Dunhuang, Subei; west Qinghai;
# the Guangdong counties Xuwen, Haikang, Suixi, Lianjiang,
# Zhanjiang, Wuchuan, Huazhou, Gaozhou, Maoming, Dianbai, and Xinyi;
# east Tibet, including Lhasa, Chamdo, Shigaise, Jimsar, Shawan and Hutubi;
# east Xinjiang, including Ürümqi, Turpan, Karamay, Korla, Minfeng, Jinghe,
# Wusu, Qiemo, Xinyan, Wulanwusu, Jinghe, Yumin, Tacheng, Tuoli, Emin,
# Shihezi, Changji, Yanqi, Heshuo, Tuokexun, Tulufan, Shanshan, Hami,
# Fukang, Kuitun, Kumukuli, Miquan, Qitai, and Turfan.
#
# Kunlun Time UT+5.5
# Asia/Kashgar (currently a link to Asia/Urumqi)
# West Tibet, including Pulan, Aheqi, Shufu, Shule;
# West Xinjiang, including Aksu, Atushi, Yining, Hetian, Cele, Luopu, Nileke,
# Zhaosu, Tekesi, Gongliu, Chabuchaer, Huocheng, Bole, Pishan, Suiding,
# and Yarkand.
# From Luther Ma (2009-10-17):
# Almost all (>99.9%) ethnic Chinese (properly ethnic Han) living in
# Xinjiang use Chinese Standard Time. Some are aware of Xinjiang time,
# but have no need of it. All planes, trains, and schools function on
# what is called "Beijing time." When Han make an appointment in Chinese
# they implicitly use Beijing time.
#
# On the other hand, ethnic Uyghurs, who make up about half the
# population of Xinjiang, typically use "Xinjiang time" which is two
# hours behind Beijing time, or UTC +0600. The government of the Xinjiang
# Uyghur Autonomous Region, (XAUR, or just Xinjiang for short) as well as
# local governments such as the Ürümqi city government use both times in
# publications, referring to what is popularly called Xinjiang time as
# "Ürümqi time." When Uyghurs make an appointment in the Uyghur language
# they almost invariably use Xinjiang time.
#
# (Their ethnic Han compatriots would typically have no clue of its
# widespread use, however, because so extremely few of them are fluent in
# Uyghur, comparable to the number of Anglo-Americans fluent in Navajo.)
#
# (...As with the rest of China there was a brief interval ending in 1990
# or 1991 when summer time was in use. The confusion was severe, with
# the province not having dual times but four times in use at the same
# time. Some areas remained on standard Xinjiang time or Beijing time and
# others moving their clocks ahead.)
# From Luther Ma (2009-11-19):
# With the risk of being redundant to previous answers these are the most common
# English "transliterations" (w/o using non-English symbols):
#
# 1. Wulumuqi...
# 2. Kashi...
# 3. Urumqi...
# 4. Kashgar...
# ...
# 5. It seems that Uyghurs in Ürümqi has been using Xinjiang since at least the
# 1960's. I know of one Han, now over 50, who grew up in the surrounding
# countryside and used Xinjiang time as a child.
#
# 6. Likewise for Kashgar and the rest of south Xinjiang I don't know of any
# start date for Xinjiang time.
#
# Without having access to local historical records, nor the ability to legally
# publish them, I would go with October 1, 1949, when Xinjiang became the Uyghur
# Autonomous Region under the PRC. (Before that Uyghurs, of course, would also
# not be using Beijing time, but some local time.)
# From David Cochrane (2014-03-26):
# Just a confirmation that Ürümqi time was implemented in Ürümqi on 1 Feb 1986:
# http://content.time.com/time/magazine/article/0,9171,960684,00.html
# From Luther Ma (2014-04-22):
# I have interviewed numerous people of various nationalities and from
# different localities in Xinjiang and can confirm the information in Guo's
# report regarding Xinjiang, as well as the Time article reference by David
# Cochrane. Whether officially recognized or not (and both are officially
# recognized), two separate times have been in use in Xinjiang since at least
# the Cultural Revolution: Xinjiang Time (XJT), aka Ürümqi Time or local time;
# and Beijing Time. There is no confusion in Xinjiang as to which name refers
# to which time. Both are widely used in the province, although in some
# population groups might be use one to the exclusion of the other. The only
# problem is that computers and smart phones list Ürümqi (or Kashgar) as
# having the same time as Beijing.
# From Paul Eggert (2014-06-30):
# In the early days of the PRC, Tibet was given its own time zone (UT+6) but
# this was withdrawn in 1959 and never reinstated; see Tubten Khétsun,
# Memories of life in Lhasa under Chinese Rule, Columbia U Press, ISBN
# 978-0231142861 (2008), translator's introduction by Matthew Akester, p x.
# As this is before our 1970 cutoff, Tibet doesn't need a separate zone.
#
# Xinjiang Time is well-documented as being officially recognized. E.g., see
# "The Working-Calendar for The Xinjiang Uygur Autonomous Region Government"
# (2014-04-22).
# Unfortunately, we have no good records of time in Xinjiang before 1986.
# During the 20th century parts of Xinjiang were ruled by the Qing dyansty,
# the Republic of China, various warlords, the First and Second East Turkestan
# Republics, the Soviet Union, the Kuomintang, and the People's Republic of
# China, and tracking down all these organizations' timekeeping rules would be
# quite a trick. Approximate this lost history by a transition from LMT to
# XJT at the start of 1928, the year of accession of the warlord Jin Shuren,
# which happens to be the date given by Shanks & Pottenger (no doubt as a
# guess) as the transition from LMT. Ignore the usage of UT+8 before
# 1986-02-01 under the theory that the transition date to UT+8 is unknown and
# that the sort of users who prefer Asia/Urumqi now typically ignored the
# UT+8 mandate back then.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
# Beijing time, used throughout China; represented by Shanghai.
Zone Asia/Shanghai 8:05:43 - LMT 1901
8:00 Shang C%sT 1949
8:00 PRC C%sT
# Xinjiang time, used by many in western China; represented by Ürümqi / Ürümchi
# / Wulumuqi. (Please use Asia/Shanghai if you prefer Beijing time.)
Zone Asia/Urumqi 5:50:20 - LMT 1928
6:00 - XJT
# Hong Kong (Xianggang)
# Milne gives 7:36:41.7; round this.
# From Lee Yiu Chung (2009-10-24):
# I found there are some mistakes for the...DST rule for Hong
# Kong. [According] to the DST record from Hong Kong Observatory (actually,
# it is not [an] observatory, but the official meteorological agency of HK,
# and also serves as the official timing agency), there are some missing
# and incorrect rules. Although the exact switch over time is missing, I
# think 3:30 is correct. The official DST record for Hong Kong can be
# obtained from
# http://www.hko.gov.hk/gts/time/Summertime.htm
# From Arthur David Olson (2009-10-28):
# Here are the dates given at
# http://www.hko.gov.hk/gts/time/Summertime.htm
# as of 2009-10-28:
# Year Period
# 1941 1 Apr to 30 Sep
# 1942 Whole year
# 1943 Whole year
# 1944 Whole year
# 1945 Whole year
# 1946 20 Apr to 1 Dec
# 1947 13 Apr to 30 Dec
# 1948 2 May to 31 Oct
# 1949 3 Apr to 30 Oct
# 1950 2 Apr to 29 Oct
# 1951 1 Apr to 28 Oct
# 1952 6 Apr to 25 Oct
# 1953 5 Apr to 1 Nov
# 1954 21 Mar to 31 Oct
# 1955 20 Mar to 6 Nov
# 1956 18 Mar to 4 Nov
# 1957 24 Mar to 3 Nov
# 1958 23 Mar to 2 Nov
# 1959 22 Mar to 1 Nov
# 1960 20 Mar to 6 Nov
# 1961 19 Mar to 5 Nov
# 1962 18 Mar to 4 Nov
# 1963 24 Mar to 3 Nov
# 1964 22 Mar to 1 Nov
# 1965 18 Apr to 17 Oct
# 1966 17 Apr to 16 Oct
# 1967 16 Apr to 22 Oct
# 1968 21 Apr to 20 Oct
# 1969 20 Apr to 19 Oct
# 1970 19 Apr to 18 Oct
# 1971 18 Apr to 17 Oct
# 1972 16 Apr to 22 Oct
# 1973 22 Apr to 21 Oct
# 1973/74 30 Dec 73 to 20 Oct 74
# 1975 20 Apr to 19 Oct
# 1976 18 Apr to 17 Oct
# 1977 Nil
# 1978 Nil
# 1979 13 May to 21 Oct
# 1980 to Now Nil
# The page does not give start or end times of day.
# The page does not give a start date for 1942.
# The page does not givw an end date for 1945.
# The Japanese occupation of Hong Kong began on 1941-12-25.
# The Japanese surrender of Hong Kong was signed 1945-09-15.
# For lack of anything better, use start of those days as the transition times.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule HK 1941 only - Apr 1 3:30 1:00 S
Rule HK 1941 only - Sep 30 3:30 0 -
Rule HK 1946 only - Apr 20 3:30 1:00 S
Rule HK 1946 only - Dec 1 3:30 0 -
Rule HK 1947 only - Apr 13 3:30 1:00 S
Rule HK 1947 only - Dec 30 3:30 0 -
Rule HK 1948 only - May 2 3:30 1:00 S
Rule HK 1948 1951 - Oct lastSun 3:30 0 -
Rule HK 1952 only - Oct 25 3:30 0 -
Rule HK 1949 1953 - Apr Sun>=1 3:30 1:00 S
Rule HK 1953 only - Nov 1 3:30 0 -
Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S
Rule HK 1954 only - Oct 31 3:30 0 -
Rule HK 1955 1964 - Nov Sun>=1 3:30 0 -
Rule HK 1965 1976 - Apr Sun>=16 3:30 1:00 S
Rule HK 1965 1976 - Oct Sun>=16 3:30 0 -
Rule HK 1973 only - Dec 30 3:30 1:00 S
Rule HK 1979 only - May Sun>=8 3:30 1:00 S
Rule HK 1979 only - Oct Sun>=16 3:30 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30
8:00 HK HK%sT 1941 Dec 25
9:00 - JST 1945 Sep 15
8:00 HK HK%sT
###############################################################################
# Taiwan
# From smallufo (2010-04-03):
# According to Taiwan's CWB [Central Weather Bureau],
# http://www.cwb.gov.tw/V6/astronomy/cdata/summert.htm
# Taipei has DST in 1979 between July 1st and Sep 30.
# From Yu-Cheng Chuang (2013-07-12):
# On Dec 28, 1895, the Meiji Emperor announced Ordinance No. 167 of
# Meiji Year 28 "The clause about standard time", mentioned that
# Taiwan and Penghu Islands, as well as Yaeyama and Miyako Islands
# (both in Okinawa) adopt the Western Standard Time which is based on
# 120E. The adoption began from Jan 1, 1896. The original text can be
# found on Wikisource:
# http://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
# ... This could be the first adoption of time zone in Taiwan, because
# during the Qing Dynasty, it seems that there was no time zone
# declared officially.
#
# Later, in the beginning of World War II, on Sep 25, 1937, the Showa
# Emperor announced Ordinance No. 529 of Showa Year 12 "The clause of
# revision in the ordinance No. 167 of Meiji year 28 about standard
# time", in which abolished the adoption of Western Standard Time in
# western islands (listed above), which means the whole Japan
# territory, including later occupations, adopt Japan Central Time
# (UTC+9). The adoption began on Oct 1, 1937. The original text can
# be found on Wikisource:
# http://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
#
# That is, the time zone of Taipei switched to UTC+9 on Oct 1, 1937.
# From Yu-Cheng Chuang (2014-07-02):
# I've found more evidence about when the time zone was switched from UTC+9
# back to UTC+8 after WW2. I believe it was on Sep 21, 1945. In a document
# during Japanese era [1] in which the officer told the staff to change time
# zone back to Western Standard Time (UTC+8) on Sep 21. And in another
# history page of National Cheng Kung University [2], on Sep 21 there is a
# note "from today, switch back to Western Standard Time". From these two
# materials, I believe that the time zone change happened on Sep 21. And
# today I have found another monthly journal called "The Astronomical Herald"
# from The Astronomical Society of Japan [3] in which it mentioned the fact
# that:
#
# 1. Standard Time of the Country (Japan) was adopted on Jan 1, 1888, using
# the time at 135E (GMT+9)
#
# 2. Standard Time of the Country was renamed to Central Standard Time, on Jan
# 1, 1898, and on the same day, the new territories Taiwan and Penghu islands,
# as well as Yaeyama and Miyako islands, adopted a new time zone called
# Western Standard Time, which is in GMT+8.
#
# 3. Western Standard Time was deprecated on Sep 30, 1937. From then all the
# territories of Japan adopted the same time zone, which is Central Standard
# Time.
#
# [1] Academica Historica, Taiwan:
# http://163.29.208.22:8080/govsaleShowImage/connect_img.php?s=00101738900090036&e=00101738900090037
# [2] Nat'l Cheng Kung University 70th Anniversary Special Site:
# http://www.ncku.edu.tw/~ncku70/menu/001/01_01.htm
# [3] Yukio Niimi, The Standard Time in Japan (1997), p.475:
# http://www.asj.or.jp/geppou/archive_open/1997/pdf/19971001c.pdf
# Yu-Cheng Chuang (2014-07-03):
# I finally have found the real official gazette about changing back to
# Western Standard Time on Sep 21 in Taiwan. It's Taiwan Governor-General
# Bulletin No. 386 in Showa 20 years (1945), published on Sep 19, 1945. [1] ...
# [It] abolishes Bulletin No. 207 in Showa 12 years (1937), which is a local
# bulletin in Taiwan for that Ordinance No. 529. It also mentioned that 1am on
# Sep 21, 1945 will be 12am on Sep 21. I think this bulletin is much more
# official than the one I mentioned in my first mail, because it's from the
# top-level government in Taiwan. If you're going to quote any resource, this
# would be a good one.
# [1] Taiwan Governor-General Gazette, No. 1018, Sep 19, 1945:
# http://db2.th.gov.tw/db2/view/viewImg.php?imgcode=0072031018a&num=19&bgn=019&end=019&otherImg=&type=gener
# From Yu-Cheng Chuang (2014-07-02):
# In 1946, DST in Taiwan was from May 15 and ended on Sep 30. The info from
# Central Weather Bureau website was not correct.
#
# Original Bulletin:
#
# (cont.)
#
# In 1947, DST in Taiwan was expanded to Oct 31. There is a backup of that
# telegram announcement from Taiwan Province Government:
#
#
#
# Here is a brief translation:
#
# The Summer Time this year is adopted from midnight Apr 15 until Sep 20
# midnight. To save (energy?) consumption, we're expanding Summer Time
# adption till Oct 31 midnight.
#
# The Central Weather Bureau website didn't mention that, however it can
# be found from historical government announcement database.
# From Paul Eggert (2014-07-03):
# As per Yu-Cheng Chuang, say that Taiwan was at UT+9 from 1937-10-01
# until 1945-09-21 at 01:00, overriding Shanks & Pottenger.
# Likewise, use Yu-Cheng Chuang's data for DST in Taiwan.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Taiwan 1946 only - May 15 0:00 1:00 D
Rule Taiwan 1946 only - Oct 1 0:00 0 S
Rule Taiwan 1947 only - Apr 15 0:00 1:00 D
Rule Taiwan 1947 only - Nov 1 0:00 0 S
Rule Taiwan 1948 1951 - May 1 0:00 1:00 D
Rule Taiwan 1948 1951 - Oct 1 0:00 0 S
Rule Taiwan 1952 only - Mar 1 0:00 1:00 D
Rule Taiwan 1952 1954 - Nov 1 0:00 0 S
Rule Taiwan 1953 1959 - Apr 1 0:00 1:00 D
Rule Taiwan 1955 1961 - Oct 1 0:00 0 S
Rule Taiwan 1960 1961 - Jun 1 0:00 1:00 D
Rule Taiwan 1974 1975 - Apr 1 0:00 1:00 D
Rule Taiwan 1974 1975 - Oct 1 0:00 0 S
Rule Taiwan 1979 only - Jul 1 0:00 1:00 D
Rule Taiwan 1979 only - Oct 1 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
# Taipei or Taibei or T'ai-pei
Zone Asia/Taipei 8:06:00 - LMT 1896 Jan 1
8:00 - JWST 1937 Oct 1
9:00 - JST 1945 Sep 21 01:00
8:00 Taiwan C%sT
# Macau (Macao, Aomen)
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Macau 1961 1962 - Mar Sun>=16 3:30 1:00 S
Rule Macau 1961 1964 - Nov Sun>=1 3:30 0 -
Rule Macau 1963 only - Mar Sun>=16 0:00 1:00 S
Rule Macau 1964 only - Mar Sun>=16 3:30 1:00 S
Rule Macau 1965 only - Mar Sun>=16 0:00 1:00 S
Rule Macau 1965 only - Oct 31 0:00 0 -
Rule Macau 1966 1971 - Apr Sun>=16 3:30 1:00 S
Rule Macau 1966 1971 - Oct Sun>=16 3:30 0 -
Rule Macau 1972 1974 - Apr Sun>=15 0:00 1:00 S
Rule Macau 1972 1973 - Oct Sun>=15 0:00 0 -
Rule Macau 1974 1977 - Oct Sun>=15 3:30 0 -
Rule Macau 1975 1977 - Apr Sun>=15 3:30 1:00 S
Rule Macau 1978 1980 - Apr Sun>=15 0:00 1:00 S
Rule Macau 1978 1980 - Oct Sun>=15 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Macau 7:34:20 - LMT 1912
8:00 Macau MO%sT 1999 Dec 20 # return to China
8:00 PRC C%sT
###############################################################################
# Cyprus
#
# Milne says the Eastern Telegraph Company used 2:14:00. Stick with LMT.
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Cyprus 1975 only - Apr 13 0:00 1:00 S
Rule Cyprus 1975 only - Oct 12 0:00 0 -
Rule Cyprus 1976 only - May 15 0:00 1:00 S
Rule Cyprus 1976 only - Oct 11 0:00 0 -
Rule Cyprus 1977 1980 - Apr Sun>=1 0:00 1:00 S
Rule Cyprus 1977 only - Sep 25 0:00 0 -
Rule Cyprus 1978 only - Oct 2 0:00 0 -
Rule Cyprus 1979 1997 - Sep lastSun 0:00 0 -
Rule Cyprus 1981 1998 - Mar lastSun 0:00 1:00 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14
2:00 Cyprus EE%sT 1998 Sep
2:00 EUAsia EE%sT
# IATA SSIM (1998-09) has Cyprus using EU rules for the first time.
# Classically, Cyprus belongs to Asia; e.g. see Herodotus, Histories, I.72.
# However, for various reasons many users expect to find it under Europe.
Link Asia/Nicosia Europe/Nicosia
# Georgia
# From Paul Eggert (1994-11-19):
# Today's _Economist_ (p 60) reports that Georgia moved its clocks forward
# an hour recently, due to a law proposed by Zurab Murvanidze,
# an MP who went on a hunger strike for 11 days to force discussion about it!
# We have no details, but we'll guess they didn't move the clocks back in fall.
#
# From Mathew Englander, quoting AP (1996-10-23 13:05-04):
# Instead of putting back clocks at the end of October, Georgia
# will stay on daylight savings time this winter to save energy,
# President Eduard Shevardnadze decreed Wednesday.
#
# From the BBC via Joseph S. Myers (2004-06-27):
#
# Georgia moved closer to Western Europe on Sunday... The former Soviet
# republic has changed its time zone back to that of Moscow. As a result it
# is now just four hours ahead of Greenwich Mean Time, rather than five hours
# ahead. The switch was decreed by the pro-Western president of Georgia,
# Mikheil Saakashvili, who said the change was partly prompted by the process
# of integration into Europe.
# From Teimuraz Abashidze (2005-11-07):
# Government of Georgia ... decided to NOT CHANGE daylight savings time on
# [Oct.] 30, as it was done before during last more than 10 years.
# Currently, we are in fact GMT +4:00, as before 30 October it was GMT
# +3:00.... The problem is, there is NO FORMAL LAW or governmental document
# about it. As far as I can find, I was told, that there is no document,
# because we just DIDN'T ISSUE document about switching to winter time....
# I don't know what can be done, especially knowing that some years ago our
# DST rules where changed THREE TIMES during one month.
# Milne says Tbilisi (Tiflis) time was 2:59:05.7; round to nearest.)
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Tbilisi 2:59:06 - LMT 1880
2:59:06 - TBMT 1924 May 2 # Tbilisi Mean Time
3:00 - TBIT 1957 Mar # Tbilisi Time
4:00 RussiaAsia TBI%sT 1991 Mar 31 2:00s
3:00 1:00 TBIST 1991 Apr 9 # independence
3:00 RussiaAsia GE%sT 1992 # Georgia Time
3:00 E-EurAsia GE%sT 1994 Sep lastSun
4:00 E-EurAsia GE%sT 1996 Oct lastSun
4:00 1:00 GEST 1997 Mar lastSun
4:00 E-EurAsia GE%sT 2004 Jun 27
3:00 RussiaAsia GE%sT 2005 Mar lastSun 2:00
4:00 - GET
# East Timor
# See Indonesia for the 1945 transition.
# From João Carrascalão, brother of the former governor of East Timor, in
# East Timor may be late for its millennium
# (1999-12-26/31):
# Portugal tried to change the time forward in 1974 because the sun
# rises too early but the suggestion raised a lot of problems with the
# Timorese and I still don't think it would work today because it
# conflicts with their way of life.
# From Paul Eggert (2000-12-04):
# We don't have any record of the above attempt.
# Most likely our records are incomplete, but we have no better data.
# From Manoel de Almeida e Silva, Deputy Spokesman for the UN Secretary-General
# http://www.hri.org/news/world/undh/2000/00-08-16.undh.html
# (2000-08-16):
# The Cabinet of the East Timor Transition Administration decided
# today to advance East Timor's time by one hour. The time change,
# which will be permanent, with no seasonal adjustment, will happen at
# midnight on Saturday, September 16.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Dili 8:22:20 - LMT 1912
8:00 - TLT 1942 Feb 21 23:00 # E Timor Time
9:00 - JST 1945 Sep 23
9:00 - TLT 1976 May 3
8:00 - WITA 2000 Sep 17 00:00
9:00 - TLT
# India
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata
5:53:20 - HMT 1941 Oct # Howrah Mean Time?
6:30 - BURT 1942 May 15 # Burma Time
5:30 - IST 1942 Sep
5:30 1:00 IST 1945 Oct 15
5:30 - IST
# The following are like Asia/Kolkata:
# Andaman Is
# Lakshadweep (Laccadive, Minicoy and Amindivi Is)
# Nicobar Is
# Indonesia
#
# From Gwillim Law (2001-05-28), overriding Shanks & Pottenger:
#
# says that Indonesia's time zones changed on 1988-01-01. Looking at some
# time zone maps, I think that must refer to Western Borneo (Kalimantan Barat
# and Kalimantan Tengah) switching from UTC+8 to UTC+7.
#
# From Paul Eggert (2007-03-10):
# Here is another correction to Shanks & Pottenger.
# JohnTWB writes that Japanese forces did not surrender control in
# Indonesia until 1945-09-01 00:00 at the earliest (in Jakarta) and
# other formal surrender ceremonies were September 9, 11, and 13, plus
# September 12 for the regional surrender to Mountbatten in Singapore.
# These would be the earliest possible times for a change.
# Régimes horaires pour le monde entier, by Henri Le Corre, (Éditions
# Traditionnelles, 1987, Paris) says that Java and Madura switched
# from JST to UTC+07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura
# (Hollandia). For now, assume all Indonesian locations other than Jayapura
# switched on 1945-09-23.
#
# From Paul Eggert (2013-08-11):
# Normally the tz database uses English-language abbreviations, but in
# Indonesia it's typical to use Indonesian-language abbreviations even
# when writing in English. For example, see the English-language
# summary published by the Time and Frequency Laboratory of the
# Research Center for Calibration, Instrumentation and Metrology,
# Indonesia, (2006-09-29).
# The abbreviations are:
#
# WIB - UTC+7 - Waktu Indonesia Barat (Indonesia western time)
# WITA - UTC+8 - Waktu Indonesia Tengah (Indonesia central time)
# WIT - UTC+9 - Waktu Indonesia Timur (Indonesia eastern time)
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
# Java, Sumatra
Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10
# Shanks & Pottenger say the next transition was at 1924 Jan 1 0:13,
# but this must be a typo.
7:07:12 - BMT 1923 Dec 31 23:47:12 # Batavia
7:20 - JAVT 1932 Nov # Java Time
7:30 - WIB 1942 Mar 23
9:00 - JST 1945 Sep 23
7:30 - WIB 1948 May
8:00 - WIB 1950 May
7:30 - WIB 1964
7:00 - WIB
# west and central Borneo
Zone Asia/Pontianak 7:17:20 - LMT 1908 May
7:17:20 - PMT 1932 Nov # Pontianak MT
7:30 - WIB 1942 Jan 29
9:00 - JST 1945 Sep 23
7:30 - WIB 1948 May
8:00 - WIB 1950 May
7:30 - WIB 1964
8:00 - WITA 1988 Jan 1
7:00 - WIB
# Sulawesi, Lesser Sundas, east and south Borneo
Zone Asia/Makassar 7:57:36 - LMT 1920
7:57:36 - MMT 1932 Nov # Macassar MT
8:00 - WITA 1942 Feb 9
9:00 - JST 1945 Sep 23
8:00 - WITA
# Maluku Islands, West Papua, Papua
Zone Asia/Jayapura 9:22:48 - LMT 1932 Nov
9:00 - WIT 1944 Sep 1
9:30 - ACST 1964
9:00 - WIT
# Iran
# From Roozbeh Pournader (2003-03-15):
# This is an English translation of what I just found (originally in Persian).
# The Gregorian dates in brackets are mine:
#
# Official Newspaper No. 13548-1370/6/25 [1991-09-16]
# No. 16760/T233 H 1370/6/10 [1991-09-01]
#
# The Rule About Change of the Official Time of the Country
#
# The Board of Ministers, in the meeting dated 1370/5/23 [1991-08-14],
# based on the suggestion number 2221/D dated 1370/4/22 [1991-07-13]
# of the Country's Organization for Official and Employment Affairs,
# and referring to the law for equating the working hours of workers
# and officers in the whole country dated 1359/4/23 [1980-07-14], and
# for synchronizing the official times of the country, agreed that:
#
# The official time of the country will should move forward one hour
# at the 24[:00] hours of the first day of Farvardin and should return
# to its previous state at the 24[:00] hours of the 30th day of
# Shahrivar.
#
# First Deputy to the President - Hassan Habibi
#
# From personal experience, that agrees with what has been followed
# for at least the last 5 years. Before that, for a few years, the
# date used was the first Thursday night of Farvardin and the last
# Thursday night of Shahrivar, but I can't give exact dates....
# I have also changed the abbreviations to what is considered correct
# here in Iran, IRST for regular time and IRDT for daylight saving time.
#
# From Roozbeh Pournader (2005-04-05):
# The text of the Iranian law, in effect since 1925, clearly mentions
# that the true solar year is the measure, and there is no arithmetic
# leap year calculation involved. There has never been any serious
# plan to change that law....
#
# From Paul Eggert (2006-03-22):
# Go with Shanks & Pottenger before Sept. 1991, and with Pournader thereafter.
# I used Ed Reingold's cal-persia in GNU Emacs 21.2 to check Persian dates,
# stopping after 2037 when 32-bit time_t's overflow.
# That cal-persia used Birashk's approximation, which disagrees with the solar
# calendar predictions for the year 2025, so I corrected those dates by hand.
#
# From Oscar van Vlijmen (2005-03-30), writing about future
# discrepancies between cal-persia and the Iranian calendar:
# For 2091 solar-longitude-after yields 2091-03-20 08:40:07.7 UT for
# the vernal equinox and that gets so close to 12:00 some local
# Iranian time that the definition of the correct location needs to be
# known exactly, amongst other factors. 2157 is even closer:
# 2157-03-20 08:37:15.5 UT. But the Gregorian year 2025 should give
# no interpretation problem whatsoever. By the way, another instant
# in the near future where there will be a discrepancy between
# arithmetical and astronomical Iranian calendars will be in 2058:
# vernal equinox on 2058-03-20 09:03:05.9 UT. The Java version of
# Reingold's/Dershowitz' calculator gives correctly the Gregorian date
# 2058-03-21 for 1 Farvardin 1437 (astronomical).
#
# From Steffen Thorsen (2006-03-22):
# Several of my users have reported that Iran will not observe DST anymore:
# http://www.irna.ir/en/news/view/line-17/0603193812164948.htm
#
# From Reuters (2007-09-16), with a heads-up from Jesper Nørgaard Welen:
# ... the Guardian Council ... approved a law on Sunday to re-introduce
# daylight saving time ...
# http://uk.reuters.com/article/oilRpt/idUKBLA65048420070916
#
# From Roozbeh Pournader (2007-11-05):
# This is quoted from Official Gazette of the Islamic Republic of
# Iran, Volume 63, Number 18242, dated Tuesday 1386/6/24
# [2007-10-16]. I am doing the best translation I can:...
# The official time of the country will be moved forward for one hour
# on the 24 hours of the first day of the month of Farvardin and will
# be changed back to its previous state on the 24 hours of the
# thirtieth day of Shahrivar.
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Iran 1978 1980 - Mar 21 0:00 1:00 D
Rule Iran 1978 only - Oct 21 0:00 0 S
Rule Iran 1979 only - Sep 19 0:00 0 S
Rule Iran 1980 only - Sep 23 0:00 0 S
Rule Iran 1991 only - May 3 0:00 1:00 D
Rule Iran 1992 1995 - Mar 22 0:00 1:00 D
Rule Iran 1991 1995 - Sep 22 0:00 0 S
Rule Iran 1996 only - Mar 21 0:00 1:00 D
Rule Iran 1996 only - Sep 21 0:00 0 S
Rule Iran 1997 1999 - Mar 22 0:00 1:00 D
Rule Iran 1997 1999 - Sep 22 0:00 0 S
Rule Iran 2000 only - Mar 21 0:00 1:00 D
Rule Iran 2000 only - Sep 21 0:00 0 S
Rule Iran 2001 2003 - Mar 22 0:00 1:00 D
Rule Iran 2001 2003 - Sep 22 0:00 0 S
Rule Iran 2004 only - Mar 21 0:00 1:00 D
Rule Iran 2004 only - Sep 21 0:00 0 S
Rule Iran 2005 only - Mar 22 0:00 1:00 D
Rule Iran 2005 only - Sep 22 0:00 0 S
Rule Iran 2008 only - Mar 21 0:00 1:00 D
Rule Iran 2008 only - Sep 21 0:00 0 S
Rule Iran 2009 2011 - Mar 22 0:00 1:00 D
Rule Iran 2009 2011 - Sep 22 0:00 0 S
Rule Iran 2012 only - Mar 21 0:00 1:00 D
Rule Iran 2012 only - Sep 21 0:00 0 S
Rule Iran 2013 2015 - Mar 22 0:00 1:00 D
Rule Iran 2013 2015 - Sep 22 0:00 0 S
Rule Iran 2016 only - Mar 21 0:00 1:00 D
Rule Iran 2016 only - Sep 21 0:00 0 S
Rule Iran 2017 2019 - Mar 22 0:00 1:00 D
Rule Iran 2017 2019 - Sep 22 0:00 0 S
Rule Iran 2020 only - Mar 21 0:00 1:00 D
Rule Iran 2020 only - Sep 21 0:00 0 S
Rule Iran 2021 2023 - Mar 22 0:00 1:00 D
Rule Iran 2021 2023 - Sep 22 0:00 0 S
Rule Iran 2024 only - Mar 21 0:00 1:00 D
Rule Iran 2024 only - Sep 21 0:00 0 S
Rule Iran 2025 2027 - Mar 22 0:00 1:00 D
Rule Iran 2025 2027 - Sep 22 0:00 0 S
Rule Iran 2028 2029 - Mar 21 0:00 1:00 D
Rule Iran 2028 2029 - Sep 21 0:00 0 S
Rule Iran 2030 2031 - Mar 22 0:00 1:00 D
Rule Iran 2030 2031 - Sep 22 0:00 0 S
Rule Iran 2032 2033 - Mar 21 0:00 1:00 D
Rule Iran 2032 2033 - Sep 21 0:00 0 S
Rule Iran 2034 2035 - Mar 22 0:00 1:00 D
Rule Iran 2034 2035 - Sep 22 0:00 0 S
Rule Iran 2036 2037 - Mar 21 0:00 1:00 D
Rule Iran 2036 2037 - Sep 21 0:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Tehran 3:25:44 - LMT 1916
3:25:44 - TMT 1946 # Tehran Mean Time
3:30 - IRST 1977 Nov
4:00 Iran IR%sT 1979
3:30 Iran IR%sT
# Iraq
#
# From Jonathan Lennox (2000-06-12):
# An article in this week's Economist ("Inside the Saddam-free zone", p. 50 in
# the U.S. edition) on the Iraqi Kurds contains a paragraph:
# "The three northern provinces ... switched their clocks this spring and
# are an hour ahead of Baghdad."
#
# But Rives McDow (2000-06-18) quotes a contact in Iraqi-Kurdistan as follows:
# In the past, some Kurdish nationalists, as a protest to the Iraqi
# Government, did not adhere to daylight saving time. They referred
# to daylight saving as Saddam time. But, as of today, the time zone
# in Iraqi-Kurdistan is on standard time with Baghdad, Iraq.
#
# So we'll ignore the Economist's claim.
# From Steffen Thorsen (2008-03-10):
# The cabinet in Iraq abolished DST last week, according to the following
# news sources (in Arabic):
# http://www.aljeeran.net/wesima_articles/news-20080305-98602.html
# http://www.aswataliraq.info/look/article.tpl?id=2047&IdLanguage=17&IdPublication=4&NrArticle=71743&NrIssue=1&NrSection=10
#
# We have published a short article in English about the change:
# http://www.timeanddate.com/news/time/iraq-dumps-daylight-saving.html
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Iraq 1982 only - May 1 0:00 1:00 D
Rule Iraq 1982 1984 - Oct 1 0:00 0 S
Rule Iraq 1983 only - Mar 31 0:00 1:00 D
Rule Iraq 1984 1985 - Apr 1 0:00 1:00 D
Rule Iraq 1985 1990 - Sep lastSun 1:00s 0 S
Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 D
# IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the ':01' is a typo.
# Shanks & Pottenger say Iraq did not observe DST 1992/1997; ignore this.
#
Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 D
Rule Iraq 1991 2007 - Oct 1 3:00s 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Baghdad 2:57:40 - LMT 1890
2:57:36 - BMT 1918 # Baghdad Mean Time?
3:00 - AST 1982 May
3:00 Iraq A%sT
###############################################################################
# Israel
# From Ephraim Silverberg (2001-01-11):
#
# I coined "IST/IDT" circa 1988. Until then there were three
# different abbreviations in use:
#
# JST Jerusalem Standard Time [Danny Braniss, Hebrew University]
# IZT Israel Zonal (sic) Time [Prof. Haim Papo, Technion]
# EEST Eastern Europe Standard Time [used by almost everyone else]
#
# Since timezones should be called by country and not capital cities,
# I ruled out JST. As Israel is in Asia Minor and not Eastern Europe,
# EEST was equally unacceptable. Since "zonal" was not compatible with
# any other timezone abbreviation, I felt that 'IST' was the way to go
# and, indeed, it has received almost universal acceptance in timezone
# settings in Israeli computers.
#
# In any case, I am happy to share timezone abbreviations with India,
# high on my favorite-country list (and not only because my wife's
# family is from India).
# From Shanks & Pottenger:
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 1940 only - Jun 1 0:00 1:00 D
Rule Zion 1942 1944 - Nov 1 0:00 0 S
Rule Zion 1943 only - Apr 1 2:00 1:00 D
Rule Zion 1944 only - Apr 1 0:00 1:00 D
Rule Zion 1945 only - Apr 16 0:00 1:00 D
Rule Zion 1945 only - Nov 1 2:00 0 S
Rule Zion 1946 only - Apr 16 2:00 1:00 D
Rule Zion 1946 only - Nov 1 0:00 0 S
Rule Zion 1948 only - May 23 0:00 2:00 DD
Rule Zion 1948 only - Sep 1 0:00 1:00 D
Rule Zion 1948 1949 - Nov 1 2:00 0 S
Rule Zion 1949 only - May 1 0:00 1:00 D
Rule Zion 1950 only - Apr 16 0:00 1:00 D
Rule Zion 1950 only - Sep 15 3:00 0 S
Rule Zion 1951 only - Apr 1 0:00 1:00 D
Rule Zion 1951 only - Nov 11 3:00 0 S
Rule Zion 1952 only - Apr 20 2:00 1:00 D
Rule Zion 1952 only - Oct 19 3:00 0 S
Rule Zion 1953 only - Apr 12 2:00 1:00 D
Rule Zion 1953 only - Sep 13 3:00 0 S
Rule Zion 1954 only - Jun 13 0:00 1:00 D
Rule Zion 1954 only - Sep 12 0:00 0 S
Rule Zion 1955 only - Jun 11 2:00 1:00 D
Rule Zion 1955 only - Sep 11 0:00 0 S
Rule Zion 1956 only - Jun 3 0:00 1:00 D
Rule Zion 1956 only - Sep 30 3:00 0 S
Rule Zion 1957 only - Apr 29 2:00 1:00 D
Rule Zion 1957 only - Sep 22 0:00 0 S
Rule Zion 1974 only - Jul 7 0:00 1:00 D
Rule Zion 1974 only - Oct 13 0:00 0 S
Rule Zion 1975 only - Apr 20 0:00 1:00 D
Rule Zion 1975 only - Aug 31 0:00 0 S
Rule Zion 1985 only - Apr 14 0:00 1:00 D
Rule Zion 1985 only - Sep 15 0:00 0 S
Rule Zion 1986 only - May 18 0:00 1:00 D
Rule Zion 1986 only - Sep 7 0:00 0 S
Rule Zion 1987 only - Apr 15 0:00 1:00 D
Rule Zion 1987 only - Sep 13 0:00 0 S
# From Avigdor Finkelstein (2014-03-05):
# I check the Parliament (Knesset) records and there it's stated that the
# [1988] transition should take place on Saturday night, when the Sabbath
# ends and changes to Sunday.
Rule Zion 1988 only - Apr 10 0:00 1:00 D
Rule Zion 1988 only - Sep 4 0:00 0 S
# From Ephraim Silverberg
# (1997-03-04, 1998-03-16, 1998-12-28, 2000-01-17, 2000-07-25, 2004-12-22,
# and 2005-02-17):
# According to the Office of the Secretary General of the Ministry of
# Interior, there is NO set rule for Daylight-Savings/Standard time changes.
# One thing is entrenched in law, however: that there must be at least 150
# days of daylight savings time annually. From 1993-1998, the change to
# daylight savings time was on a Friday morning from midnight IST to
# 1 a.m IDT; up until 1998, the change back to standard time was on a
# Saturday night from midnight daylight savings time to 11 p.m. standard
# time. 1996 is an exception to this rule where the change back to standard
# time took place on Sunday night instead of Saturday night to avoid
# conflicts with the Jewish New Year. In 1999, the change to
# daylight savings time was still on a Friday morning but from
# 2 a.m. IST to 3 a.m. IDT; furthermore, the change back to standard time
# was also on a Friday morning from 2 a.m. IDT to 1 a.m. IST for
# 1999 only. In the year 2000, the change to daylight savings time was
# similar to 1999, but although the change back will be on a Friday, it
# will take place from 1 a.m. IDT to midnight IST. Starting in 2001, all
# changes to/from will take place at 1 a.m. old time, but now there is no
# rule as to what day of the week it will take place in as the start date
# (except in 2003) is the night after the Passover Seder (i.e. the eve
# of the 16th of Nisan in the lunar Hebrew calendar) and the end date
# (except in 2002) is three nights before Yom Kippur [Day of Atonement]
# (the eve of the 7th of Tishrei in the lunar Hebrew calendar).
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 1989 only - Apr 30 0:00 1:00 D
Rule Zion 1989 only - Sep 3 0:00 0 S
Rule Zion 1990 only - Mar 25 0:00 1:00 D
Rule Zion 1990 only - Aug 26 0:00 0 S
Rule Zion 1991 only - Mar 24 0:00 1:00 D
Rule Zion 1991 only - Sep 1 0:00 0 S
Rule Zion 1992 only - Mar 29 0:00 1:00 D
Rule Zion 1992 only - Sep 6 0:00 0 S
Rule Zion 1993 only - Apr 2 0:00 1:00 D
Rule Zion 1993 only - Sep 5 0:00 0 S
# The dates for 1994-1995 were obtained from Office of the Spokeswoman for the
# Ministry of Interior, Jerusalem, Israel. The spokeswoman can be reached by
# calling the office directly at 972-2-6701447 or 972-2-6701448.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 1994 only - Apr 1 0:00 1:00 D
Rule Zion 1994 only - Aug 28 0:00 0 S
Rule Zion 1995 only - Mar 31 0:00 1:00 D
Rule Zion 1995 only - Sep 3 0:00 0 S
# The dates for 1996 were determined by the Minister of Interior of the
# time, Haim Ramon. The official announcement regarding 1996-1998
# (with the dates for 1997-1998 no longer being relevant) can be viewed at:
#
# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/1996-1998.ramon.ps.gz
#
# The dates for 1997-1998 were altered by his successor, Rabbi Eli Suissa.
#
# The official announcements for the years 1997-1999 can be viewed at:
#
# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/YYYY.ps.gz
#
# where YYYY is the relevant year.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 1996 only - Mar 15 0:00 1:00 D
Rule Zion 1996 only - Sep 16 0:00 0 S
Rule Zion 1997 only - Mar 21 0:00 1:00 D
Rule Zion 1997 only - Sep 14 0:00 0 S
Rule Zion 1998 only - Mar 20 0:00 1:00 D
Rule Zion 1998 only - Sep 6 0:00 0 S
Rule Zion 1999 only - Apr 2 2:00 1:00 D
Rule Zion 1999 only - Sep 3 2:00 0 S
# The Knesset Interior Committee has changed the dates for 2000 for
# the third time in just over a year and have set new dates for the
# years 2001-2004 as well.
#
# The official announcement for the start date of 2000 can be viewed at:
#
# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-start.ps.gz
#
# The official announcement for the end date of 2000 and the dates
# for the years 2001-2004 can be viewed at:
#
# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2000-2004.ps.gz
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 2000 only - Apr 14 2:00 1:00 D
Rule Zion 2000 only - Oct 6 1:00 0 S
Rule Zion 2001 only - Apr 9 1:00 1:00 D
Rule Zion 2001 only - Sep 24 1:00 0 S
Rule Zion 2002 only - Mar 29 1:00 1:00 D
Rule Zion 2002 only - Oct 7 1:00 0 S
Rule Zion 2003 only - Mar 28 1:00 1:00 D
Rule Zion 2003 only - Oct 3 1:00 0 S
Rule Zion 2004 only - Apr 7 1:00 1:00 D
Rule Zion 2004 only - Sep 22 1:00 0 S
# The proposed law agreed upon by the Knesset Interior Committee on
# 2005-02-14 is that, for 2005 and beyond, DST starts at 02:00 the
# last Friday before April 2nd (i.e. the last Friday in March or April
# 1st itself if it falls on a Friday) and ends at 02:00 on the Saturday
# night _before_ the fast of Yom Kippur.
#
# Those who can read Hebrew can view the announcement at:
#
# ftp://ftp.cs.huji.ac.il/pub/tz/announcements/2005+beyond.ps
# From Paul Eggert (2012-10-26):
# I used Ephraim Silverberg's dst-israel.el program
# (2005-02-20)
# along with Ed Reingold's cal-hebrew in GNU Emacs 21.4,
# to generate the transitions from 2005 through 2012.
# (I replaced "lastFri" with "Fri>=26" by hand.)
# The spring transitions all correspond to the following Rule:
#
# Rule Zion 2005 2012 - Mar Fri>=26 2:00 1:00 D
#
# but older zic implementations (e.g., Solaris 8) do not support
# "Fri>=26" to mean April 1 in years like 2005, so for now we list the
# springtime transitions explicitly.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 2005 only - Apr 1 2:00 1:00 D
Rule Zion 2005 only - Oct 9 2:00 0 S
Rule Zion 2006 2010 - Mar Fri>=26 2:00 1:00 D
Rule Zion 2006 only - Oct 1 2:00 0 S
Rule Zion 2007 only - Sep 16 2:00 0 S
Rule Zion 2008 only - Oct 5 2:00 0 S
Rule Zion 2009 only - Sep 27 2:00 0 S
Rule Zion 2010 only - Sep 12 2:00 0 S
Rule Zion 2011 only - Apr 1 2:00 1:00 D
Rule Zion 2011 only - Oct 2 2:00 0 S
Rule Zion 2012 only - Mar Fri>=26 2:00 1:00 D
Rule Zion 2012 only - Sep 23 2:00 0 S
# From Ephraim Silverberg (2013-06-27):
# On June 23, 2013, the Israeli government approved changes to the
# Time Decree Law. The next day, the changes passed the First Reading
# in the Knesset. The law is expected to pass the Second and Third
# (final) Readings by the beginning of September 2013.
#
# As of 2013, DST starts at 02:00 on the Friday before the last Sunday
# in March. DST ends at 02:00 on the last Sunday of October.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Zion 2013 max - Mar Fri>=23 2:00 1:00 D
Rule Zion 2013 max - Oct lastSun 2:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Jerusalem 2:20:54 - LMT 1880
2:20:40 - JMT 1918 # Jerusalem Mean Time?
2:00 Zion I%sT
###############################################################################
# Japan
# '9:00' and 'JST' is from Guy Harris.
# From Paul Eggert (1995-03-06):
# Today's _Asahi Evening News_ (page 4) reports that Japan had
# daylight saving between 1948 and 1951, but "the system was discontinued
# because the public believed it would lead to longer working hours."
# From Mayumi Negishi in the 2005-08-10 Japan Times
# :
# Occupation authorities imposed daylight-saving time on Japan on
# [1948-05-01].... But lack of prior debate and the execution of
# daylight-saving time just three days after the bill was passed generated
# deep hatred of the concept.... The Diet unceremoniously passed a bill to
# dump the unpopular system in October 1951, less than a month after the San
# Francisco Peace Treaty was signed. (A government poll in 1951 showed 53%
# of the Japanese wanted to scrap daylight-saving time, as opposed to 30% who
# wanted to keep it.)
# From Paul Eggert (2006-03-22):
# Shanks & Pottenger write that DST in Japan during those years was as follows:
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Japan 1948 only - May Sun>=1 2:00 1:00 D
Rule Japan 1948 1951 - Sep Sat>=8 2:00 0 S
Rule Japan 1949 only - Apr Sun>=1 2:00 1:00 D
Rule Japan 1950 1951 - May Sun>=1 2:00 1:00 D
# but the only locations using it (for birth certificates, presumably, since
# their audience is astrologers) were US military bases. For now, assume
# that for most purposes daylight-saving time was observed; otherwise, what
# would have been the point of the 1951 poll?
# From Hideyuki Suzuki (1998-11-09):
# 'Tokyo' usually stands for the former location of Tokyo Astronomical
# Observatory: 139 degrees 44' 40.90" E (9h 18m 58.727s), 35 degrees 39' 16.0" N.
# This data is from 'Rika Nenpyou (Chronological Scientific Tables) 1996'
# edited by National Astronomical Observatory of Japan....
# JST (Japan Standard Time) has been used since 1888-01-01 00:00 (JST).
# The law is enacted on 1886-07-07.
# From Hideyuki Suzuki (1998-11-16):
# The ordinance No. 51 (1886) established "standard time" in Japan,
# which stands for the time on 135 degrees E.
# In the ordinance No. 167 (1895), "standard time" was renamed to "central
# standard time". And the same ordinance also established "western standard
# time", which stands for the time on 120 degrees E.... But "western standard
# time" was abolished in the ordinance No. 529 (1937). In the ordinance No.
# 167, there is no mention regarding for what place western standard time is
# standard....
#
# I wrote "ordinance" above, but I don't know how to translate.
# In Japanese it's "chokurei", which means ordinance from emperor.
# From Yu-Cheng Chuang (2013-07-12):
# ...the Meiji Emperor announced Ordinance No. 167 of Meiji Year 28 "The clause
# about standard time" ... The adoption began from Jan 1, 1896.
# http://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
#
# ...the Showa Emperor announced Ordinance No. 529 of Showa Year 12 ... which
# means the whole Japan territory, including later occupations, adopt Japan
# Central Time (UTC+9). The adoption began on Oct 1, 1937.
# http://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u
9:00 - JST 1896 Jan 1
9:00 - JCST 1937 Oct 1
9:00 Japan J%sT
# Since 1938, all Japanese possessions have been like Asia/Tokyo.
# Jordan
#
# From
# Jordan Week (1999-07-01) via Steffen Thorsen (1999-09-09):
# Clocks in Jordan were forwarded one hour on Wednesday at midnight,
# in accordance with the government's decision to implement summer time
# all year round.
#
# From
# Jordan Week (1999-09-30) via Steffen Thorsen (1999-11-09):
# Winter time starts today Thursday, 30 September. Clocks will be turned back
# by one hour. This is the latest government decision and it's final!
# The decision was taken because of the increase in working hours in
# government's departments from six to seven hours.
#
# From Paul Eggert (2005-11-22):
# Starting 2003 transitions are from Steffen Thorsen's web site timeanddate.com.
#
# From Steffen Thorsen (2005-11-23):
# For Jordan I have received multiple independent user reports every year
# about DST end dates, as the end-rule is different every year.
#
# From Steffen Thorsen (2006-10-01), after a heads-up from Hilal Malawi:
# http://www.petranews.gov.jo/nepras/2006/Sep/05/4000.htm
# "Jordan will switch to winter time on Friday, October 27".
#
# From Steffen Thorsen (2009-04-02):
# This single one might be good enough, (2009-03-24, Arabic):
# http://petra.gov.jo/Artical.aspx?Lng=2&Section=8&Artical=95279
#
# Google's translation:
#
# > The Council of Ministers decided in 2002 to adopt the principle of timely
# > submission of the summer at 60 minutes as of midnight on the last Thursday
# > of the month of March of each year.
#
# So - this means the midnight between Thursday and Friday since 2002.
# From Arthur David Olson (2009-04-06):
# We still have Jordan switching to DST on Thursdays in 2000 and 2001.
# From Steffen Thorsen (2012-10-25):
# Yesterday the government in Jordan announced that they will not
# switch back to standard time this winter, so the will stay on DST
# until about the same time next year (at least).
# http://www.petra.gov.jo/Public_News/Nws_NewsDetails.aspx?NewsID=88950
# From Steffen Thorsen (2013-12-11):
# Jordan Times and other sources say that Jordan is going back to
# UTC+2 on 2013-12-19 at midnight:
# http://jordantimes.com/govt-decides-to-switch-back-to-wintertime
# Official, in Arabic:
# http://www.petra.gov.jo/public_news/Nws_NewsDetails.aspx?Menu_ID=&Site_Id=2&lang=1&NewsID=133230&CatID=14
# ... Our background/permalink about it
# http://www.timeanddate.com/news/time/jordan-reverses-dst-decision.html
# ...
# http://www.petra.gov.jo/Public_News/Nws_NewsDetails.aspx?lang=2&site_id=1&NewsID=133313&Type=P
# ... says midnight for the coming one and 1:00 for the ones in the future
# (and they will use DST again next year, using the normal schedule).
# From Paul Eggert (2013-12-11):
# As Steffen suggested, consider the past 21-month experiment to be DST.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Jordan 1973 only - Jun 6 0:00 1:00 S
Rule Jordan 1973 1975 - Oct 1 0:00 0 -
Rule Jordan 1974 1977 - May 1 0:00 1:00 S
Rule Jordan 1976 only - Nov 1 0:00 0 -
Rule Jordan 1977 only - Oct 1 0:00 0 -
Rule Jordan 1978 only - Apr 30 0:00 1:00 S
Rule Jordan 1978 only - Sep 30 0:00 0 -
Rule Jordan 1985 only - Apr 1 0:00 1:00 S
Rule Jordan 1985 only - Oct 1 0:00 0 -
Rule Jordan 1986 1988 - Apr Fri>=1 0:00 1:00 S
Rule Jordan 1986 1990 - Oct Fri>=1 0:00 0 -
Rule Jordan 1989 only - May 8 0:00 1:00 S
Rule Jordan 1990 only - Apr 27 0:00 1:00 S
Rule Jordan 1991 only - Apr 17 0:00 1:00 S
Rule Jordan 1991 only - Sep 27 0:00 0 -
Rule Jordan 1992 only - Apr 10 0:00 1:00 S
Rule Jordan 1992 1993 - Oct Fri>=1 0:00 0 -
Rule Jordan 1993 1998 - Apr Fri>=1 0:00 1:00 S
Rule Jordan 1994 only - Sep Fri>=15 0:00 0 -
Rule Jordan 1995 1998 - Sep Fri>=15 0:00s 0 -
Rule Jordan 1999 only - Jul 1 0:00s 1:00 S
Rule Jordan 1999 2002 - Sep lastFri 0:00s 0 -
Rule Jordan 2000 2001 - Mar lastThu 0:00s 1:00 S
Rule Jordan 2002 2012 - Mar lastThu 24:00 1:00 S
Rule Jordan 2003 only - Oct 24 0:00s 0 -
Rule Jordan 2004 only - Oct 15 0:00s 0 -
Rule Jordan 2005 only - Sep lastFri 0:00s 0 -
Rule Jordan 2006 2011 - Oct lastFri 0:00s 0 -
Rule Jordan 2013 only - Dec 20 0:00 0 -
Rule Jordan 2014 max - Mar lastThu 24:00 1:00 S
Rule Jordan 2014 max - Oct lastFri 0:00s 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Amman 2:23:44 - LMT 1931
2:00 Jordan EE%sT
# Kazakhstan
# From Paul Eggert (1996-11-22):
# Andrew Evtichov (1996-04-13) writes that Kazakhstan
# stayed in sync with Moscow after 1990, and that Aqtobe (formerly Aktyubinsk)
# and Aqtau (formerly Shevchenko) are the largest cities in their zones.
# Guess that Aqtau and Aqtobe diverged in 1995, since that's the first time
# IATA SSIM mentions a third time zone in Kazakhstan.
# From Paul Eggert (2006-03-22):
# German Iofis, ELSI, Almaty (2001-10-09) reports that Kazakhstan uses
# RussiaAsia rules, instead of switching at 00:00 as the IATA has it.
# Go with Shanks & Pottenger, who have them always using RussiaAsia rules.
# Also go with the following claims of Shanks & Pottenger:
#
# - Kazakhstan did not observe DST in 1991.
# - Qyzylorda switched from +5:00 to +6:00 on 1992-01-19 02:00.
# - Oral switched from +5:00 to +4:00 in spring 1989.
# From Kazakhstan Embassy's News Bulletin #11
# (2005-03-21):
# The Government of Kazakhstan passed a resolution March 15 abolishing
# daylight saving time citing lack of economic benefits and health
# complications coupled with a decrease in productivity.
#
# From Branislav Kojic (in Astana) via Gwillim Law (2005-06-28):
# ... what happened was that the former Kazakhstan Eastern time zone
# was "blended" with the Central zone. Therefore, Kazakhstan now has
# two time zones, and difference between them is one hour. The zone
# closer to UTC is the former Western zone (probably still called the
# same), encompassing four provinces in the west: Aqtobe, Atyrau,
# Mangghystau, and West Kazakhstan. The other zone encompasses
# everything else.... I guess that would make Kazakhstan time zones
# de jure UTC+5 and UTC+6 respectively.
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
#
# Almaty (formerly Alma-Ata), representing most locations in Kazakhstan
Zone Asia/Almaty 5:07:48 - LMT 1924 May 2 # or Alma-Ata
5:00 - ALMT 1930 Jun 21 # Alma-Ata Time
6:00 RussiaAsia ALM%sT 1991
6:00 - ALMT 1992
6:00 RussiaAsia ALM%sT 2005 Mar 15
6:00 - ALMT
# Qyzylorda (aka Kyzylorda, Kizilorda, Kzyl-Orda, etc.)
Zone Asia/Qyzylorda 4:21:52 - LMT 1924 May 2
4:00 - KIZT 1930 Jun 21 # Kizilorda Time
5:00 - KIZT 1981 Apr 1
5:00 1:00 KIZST 1981 Oct 1
6:00 - KIZT 1982 Apr 1
5:00 RussiaAsia KIZ%sT 1991
5:00 - KIZT 1991 Dec 16 # independence
5:00 - QYZT 1992 Jan 19 2:00
6:00 RussiaAsia QYZ%sT 2005 Mar 15
6:00 - QYZT
# Aqtobe (aka Aktobe, formerly Akt'ubinsk)
Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2
4:00 - AKTT 1930 Jun 21 # Aktyubinsk Time
5:00 - AKTT 1981 Apr 1
5:00 1:00 AKTST 1981 Oct 1
6:00 - AKTT 1982 Apr 1
5:00 RussiaAsia AKT%sT 1991
5:00 - AKTT 1991 Dec 16 # independence
5:00 RussiaAsia AQT%sT 2005 Mar 15 # Aqtobe Time
5:00 - AQTT
# Mangghystau
# Aqtau was not founded until 1963, but it represents an inhabited region,
# so include time stamps before 1963.
Zone Asia/Aqtau 3:21:04 - LMT 1924 May 2
4:00 - FORT 1930 Jun 21 # Fort Shevchenko T
5:00 - FORT 1963
5:00 - SHET 1981 Oct 1 # Shevchenko Time
6:00 - SHET 1982 Apr 1
5:00 RussiaAsia SHE%sT 1991
5:00 - SHET 1991 Dec 16 # independence
5:00 RussiaAsia AQT%sT 1995 Mar lastSun 2:00 # Aqtau Time
4:00 RussiaAsia AQT%sT 2005 Mar 15
5:00 - AQTT
# West Kazakhstan
Zone Asia/Oral 3:25:24 - LMT 1924 May 2 # or Ural'sk
4:00 - URAT 1930 Jun 21 # Ural'sk time
5:00 - URAT 1981 Apr 1
5:00 1:00 URAST 1981 Oct 1
6:00 - URAT 1982 Apr 1
5:00 RussiaAsia URA%sT 1989 Mar 26 2:00
4:00 RussiaAsia URA%sT 1991
4:00 - URAT 1991 Dec 16 # independence
4:00 RussiaAsia ORA%sT 2005 Mar 15 # Oral Time
5:00 - ORAT
# Kyrgyzstan (Kirgizstan)
# Transitions through 1991 are from Shanks & Pottenger.
# From Paul Eggert (2005-08-15):
# According to an article dated today in the Kyrgyzstan Development Gateway
#
# Kyrgyzstan is canceling the daylight saving time system. I take the article
# to mean that they will leave their clocks at 6 hours ahead of UTC.
# From Malik Abdugaliev (2005-09-21):
# Our government cancels daylight saving time 6th of August 2005.
# From 2005-08-12 our GMT-offset is +6, w/o any daylight saving.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 S
Rule Kyrgyz 1992 1996 - Sep lastSun 0:00 0 -
Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 S
Rule Kyrgyz 1997 2004 - Oct lastSun 2:30 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2
5:00 - FRUT 1930 Jun 21 # Frunze Time
6:00 RussiaAsia FRU%sT 1991 Mar 31 2:00s
5:00 1:00 FRUST 1991 Aug 31 2:00 # independence
5:00 Kyrgyz KG%sT 2005 Aug 12 # Kyrgyzstan Time
6:00 - KGT
###############################################################################
# Korea (North and South)
# From Annie I. Bang (2006-07-10) in
# :
# The Ministry of Commerce, Industry and Energy has already
# commissioned a research project [to reintroduce DST] and has said
# the system may begin as early as 2008.... Korea ran a daylight
# saving program from 1949-61 but stopped it during the 1950-53 Korean War.
# From Shanks & Pottenger:
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule ROK 1960 only - May 15 0:00 1:00 D
Rule ROK 1960 only - Sep 13 0:00 0 S
Rule ROK 1987 1988 - May Sun>=8 0:00 1:00 D
Rule ROK 1987 1988 - Oct Sun>=8 0:00 0 S
# From Paul Eggert (2014-07-01):
# The following entries are from Shanks & Pottenger, except that I
# guessed that time zone abbreviations through 1945 followed the same
# rules as discussed under Taiwan, with nominal switches from JST to KST
# when the respective cities were taken over by the Allies after WWII.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Seoul 8:27:52 - LMT 1890
8:30 - KST 1904 Dec
9:00 - JCST 1928
8:30 - KST 1932
9:00 - JCST 1937 Oct 1
9:00 - JST 1945 Sep 8
9:00 - KST 1954 Mar 21
8:00 ROK K%sT 1961 Aug 10
8:30 - KST 1968 Oct
9:00 ROK K%sT
Zone Asia/Pyongyang 8:23:00 - LMT 1890
8:30 - KST 1904 Dec
9:00 - JCST 1928
8:30 - KST 1932
9:00 - JCST 1937 Oct 1
9:00 - JST 1945 Aug 24
9:00 - KST 1954 Mar 21
8:00 - KST 1961 Aug 10
9:00 - KST
###############################################################################
# Kuwait
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kuwait 3:11:56 - LMT 1950
3:00 - AST
# Laos
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Vientiane 6:50:24 - LMT 1906 Jun 9 # or Viangchan
7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
7:00 - ICT 1912 May
8:00 - ICT 1931 May
7:00 - ICT
# Lebanon
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Lebanon 1920 only - Mar 28 0:00 1:00 S
Rule Lebanon 1920 only - Oct 25 0:00 0 -
Rule Lebanon 1921 only - Apr 3 0:00 1:00 S
Rule Lebanon 1921 only - Oct 3 0:00 0 -
Rule Lebanon 1922 only - Mar 26 0:00 1:00 S
Rule Lebanon 1922 only - Oct 8 0:00 0 -
Rule Lebanon 1923 only - Apr 22 0:00 1:00 S
Rule Lebanon 1923 only - Sep 16 0:00 0 -
Rule Lebanon 1957 1961 - May 1 0:00 1:00 S
Rule Lebanon 1957 1961 - Oct 1 0:00 0 -
Rule Lebanon 1972 only - Jun 22 0:00 1:00 S
Rule Lebanon 1972 1977 - Oct 1 0:00 0 -
Rule Lebanon 1973 1977 - May 1 0:00 1:00 S
Rule Lebanon 1978 only - Apr 30 0:00 1:00 S
Rule Lebanon 1978 only - Sep 30 0:00 0 -
Rule Lebanon 1984 1987 - May 1 0:00 1:00 S
Rule Lebanon 1984 1991 - Oct 16 0:00 0 -
Rule Lebanon 1988 only - Jun 1 0:00 1:00 S
Rule Lebanon 1989 only - May 10 0:00 1:00 S
Rule Lebanon 1990 1992 - May 1 0:00 1:00 S
Rule Lebanon 1992 only - Oct 4 0:00 0 -
Rule Lebanon 1993 max - Mar lastSun 0:00 1:00 S
Rule Lebanon 1993 1998 - Sep lastSun 0:00 0 -
Rule Lebanon 1999 max - Oct lastSun 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Beirut 2:22:00 - LMT 1880
2:00 Lebanon EE%sT
# Malaysia
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule NBorneo 1935 1941 - Sep 14 0:00 0:20 TS # one-Third Summer
Rule NBorneo 1935 1941 - Dec 14 0:00 0 -
#
# peninsular Malaysia
# The data here are taken from Mok Ly Yng (2003-10-30)
# .
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kuala_Lumpur 6:46:46 - LMT 1901 Jan 1
6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
7:00 - MALT 1933 Jan 1 # Malaya Time
7:00 0:20 MALST 1936 Jan 1
7:20 - MALT 1941 Sep 1
7:30 - MALT 1942 Feb 16
9:00 - JST 1945 Sep 12
7:30 - MALT 1982 Jan 1
8:00 - MYT # Malaysia Time
# Sabah & Sarawak
# From Paul Eggert (2006-03-22):
# The data here are mostly from Shanks & Pottenger, but the 1942, 1945 and 1982
# transition dates are from Mok Ly Yng.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kuching 7:21:20 - LMT 1926 Mar
7:30 - BORT 1933 # Borneo Time
8:00 NBorneo BOR%sT 1942 Feb 16
9:00 - JST 1945 Sep 12
8:00 - BORT 1982 Jan 1
8:00 - MYT
# Maldives
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
4:54:00 - MMT 1960 # Male Mean Time
5:00 - MVT # Maldives Time
# Mongolia
# Shanks & Pottenger say that Mongolia has three time zones, but
# The USNO (1995-12-21) and the CIA map Standard Time Zones of the World
# (2005-03) both say that it has just one.
# From Oscar van Vlijmen (1999-12-11):
# General Information Mongolia
# (1999-09)
# "Time: Mongolia has two time zones. Three westernmost provinces of
# Bayan-Ölgii, Uvs, and Hovd are one hour earlier than the capital city, and
# the rest of the country follows the Ulaanbaatar time, which is UTC/GMT plus
# eight hours."
# From Rives McDow (1999-12-13):
# Mongolia discontinued the use of daylight savings time in 1999; 1998
# being the last year it was implemented. The dates of implementation I am
# unsure of, but most probably it was similar to Russia, except for the time
# of implementation may have been different....
# Some maps in the past have indicated that there was an additional time
# zone in the eastern part of Mongolia, including the provinces of Dornod,
# Sükhbaatar, and possibly Khentii.
# From Paul Eggert (1999-12-15):
# Naming and spelling is tricky in Mongolia.
# We'll use Hovd (also spelled Chovd and Khovd) to represent the west zone;
# the capital of the Hovd province is sometimes called Hovd, sometimes Dund-Us,
# and sometimes Jirgalanta (with variant spellings), but the name Hovd
# is good enough for our purposes.
# From Rives McDow (2001-05-13):
# In addition to Mongolia starting daylight savings as reported earlier
# (adopted DST on 2001-04-27 02:00 local time, ending 2001-09-28),
# there are three time zones.
#
# Provinces [at 7:00]: Bayan-Ölgii, Uvs, Khovd, Zavkhan, Govi-Altai
# Provinces [at 8:00]: Khövsgöl, Bulgan, Arkhangai, Khentii, Töv,
# Bayankhongor, Övörkhangai, Dundgovi, Dornogovi, Ömnögovi
# Provinces [at 9:00]: Dornod, Sükhbaatar
#
# [The province of Selenge is omitted from the above lists.]
# From Ganbold Ts., Ulaanbaatar (2004-04-17):
# Daylight saving occurs at 02:00 local time last Saturday of March.
# It will change back to normal at 02:00 local time last Saturday of
# September.... As I remember this rule was changed in 2001.
#
# From Paul Eggert (2004-04-17):
# For now, assume Rives McDow's informant got confused about Friday vs
# Saturday, and that his 2001 dates should have 1 added to them.
# From Paul Eggert (2005-07-26):
# We have wildly conflicting information about Mongolia's time zones.
# Bill Bonnet (2005-05-19) reports that the US Embassy in Ulaanbaatar says
# there is only one time zone and that DST is observed, citing Microsoft
# Windows XP as the source. Risto Nykänen (2005-05-16) reports that
# travelmongolia.org says there are two time zones (UTC+7, UTC+8) with no DST.
# Oscar van Vlijmen (2005-05-20) reports that the Mongolian Embassy in
# Washington, DC says there are two time zones, with DST observed.
# He also found
#
# which also says that there is DST, and which has a comment by "Toddius"
# (2005-03-31 06:05 +0700) saying "Mongolia actually has 3.5 time zones.
# The West (OLGII) is +7 GMT, most of the country is ULAT is +8 GMT
# and some Eastern provinces are +9 GMT but Sükhbaatar Aimag is SUHK +8.5 GMT.
# The SUKH timezone is new this year, it is one of the few things the
# parliament passed during the tumultuous winter session."
# For now, let's ignore this information, until we have more confirmation.
# From Ganbold Ts. (2007-02-26):
# Parliament of Mongolia has just changed the daylight-saving rule in February.
# They decided not to adopt daylight-saving time....
# http://www.mongolnews.mn/index.php?module=unuudur&sec=view&id=15742
# From Deborah Goldsmith (2008-03-30):
# We received a bug report claiming that the tz database UTC offset for
# Asia/Choibalsan (GMT+09:00) is incorrect, and that it should be GMT
# +08:00 instead. Different sources appear to disagree with the tz
# database on this, e.g.:
#
# http://www.timeanddate.com/worldclock/city.html?n=1026
# http://www.worldtimeserver.com/current_time_in_MN.aspx
#
# both say GMT+08:00.
# From Steffen Thorsen (2008-03-31):
# eznis airways, which operates several domestic flights, has a flight
# schedule here:
# http://www.eznis.com/Container.jsp?id=112
# (click the English flag for English)
#
# There it appears that flights between Choibalsan and Ulaanbaatar arrive
# about 1:35 - 1:50 hours later in local clock time, no matter the
# direction, while Ulaanbaatar-Khovd takes 2 hours in the Eastern
# direction and 3:35 back, which indicates that Ulaanbaatar and Khovd are
# in different time zones (like we know about), while Choibalsan and
# Ulaanbaatar are in the same time zone (correction needed).
# From Arthur David Olson (2008-05-19):
# Assume that Choibalsan is indeed offset by 8:00.
# XXX--in the absence of better information, assume that transition
# was at the start of 2008-03-31 (the day of Steffen Thorsen's report);
# this is almost surely wrong.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Mongol 1983 1984 - Apr 1 0:00 1:00 S
Rule Mongol 1983 only - Oct 1 0:00 0 -
# Shanks & Pottenger and IATA SSIM say 1990s switches occurred at 00:00,
# but McDow says the 2001 switches occurred at 02:00. Also, IATA SSIM
# (1996-09) says 1996-10-25. Go with Shanks & Pottenger through 1998.
#
# Shanks & Pottenger say that the Sept. 1984 through Sept. 1990 switches
# in Choibalsan (more precisely, in Dornod and Sükhbaatar) took place
# at 02:00 standard time, not at 00:00 local time as in the rest of
# the country. That would be odd, and possibly is a result of their
# correction of 02:00 (in the previous edition) not being done correctly
# in the latest edition; so ignore it for now.
Rule Mongol 1985 1998 - Mar lastSun 0:00 1:00 S
Rule Mongol 1984 1998 - Sep lastSun 0:00 0 -
# IATA SSIM (1999-09) says Mongolia no longer observes DST.
Rule Mongol 2001 only - Apr lastSat 2:00 1:00 S
Rule Mongol 2001 2006 - Sep lastSat 2:00 0 -
Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
# Hovd, a.k.a. Chovd, Dund-Us, Dzhargalant, Khovd, Jirgalanta
Zone Asia/Hovd 6:06:36 - LMT 1905 Aug
6:00 - HOVT 1978 # Hovd Time
7:00 Mongol HOV%sT
# Ulaanbaatar, a.k.a. Ulan Bataar, Ulan Bator, Urga
Zone Asia/Ulaanbaatar 7:07:32 - LMT 1905 Aug
7:00 - ULAT 1978 # Ulaanbaatar Time
8:00 Mongol ULA%sT
# Choibalsan, a.k.a. Bajan Tuemen, Bajan Tumen, Chojbalsan,
# Choybalsan, Sanbejse, Tchoibalsan
Zone Asia/Choibalsan 7:38:00 - LMT 1905 Aug
7:00 - ULAT 1978
8:00 - ULAT 1983 Apr
9:00 Mongol CHO%sT 2008 Mar 31 # Choibalsan Time
8:00 Mongol CHO%sT
# Nepal
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Kathmandu 5:41:16 - LMT 1920
5:30 - IST 1986
5:45 - NPT # Nepal Time
# Oman
# Milne says 3:54:24 was the meridian of the Muscat Tidal Observatory.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Muscat 3:54:24 - LMT 1920
4:00 - GST
# Pakistan
# From Rives McDow (2002-03-13):
# I have been advised that Pakistan has decided to adopt dst on a
# TRIAL basis for one year, starting 00:01 local time on April 7, 2002
# and ending at 00:01 local time October 6, 2002. This is what I was
# told, but I believe that the actual time of change may be 00:00; the
# 00:01 was to make it clear which day it was on.
# From Paul Eggert (2002-03-15):
# Jesper Nørgaard found this URL:
# http://www.pak.gov.pk/public/news/app/app06_dec.htm
# (dated 2001-12-06) which says that the Cabinet adopted a scheme "to
# advance the clocks by one hour on the night between the first
# Saturday and Sunday of April and revert to the original position on
# 15th October each year". This agrees with McDow's 04-07 at 00:00,
# but disagrees about the October transition, and makes it sound like
# it's not on a trial basis. Also, the "between the first Saturday
# and Sunday of April" phrase, if taken literally, means that the
# transition takes place at 00:00 on the first Sunday on or after 04-02.
# From Paul Eggert (2003-02-09):
# DAWN reported on 2002-10-05
# that 2002 DST ended that day at midnight. Go with McDow for now.
# From Steffen Thorsen (2003-03-14):
# According to http://www.dawn.com/2003/03/07/top15.htm
# there will be no DST in Pakistan this year:
#
# ISLAMABAD, March 6: Information and Media Development Minister Sheikh
# Rashid Ahmed on Thursday said the cabinet had reversed a previous
# decision to advance clocks by one hour in summer and put them back by
# one hour in winter with the aim of saving light hours and energy.
#
# The minister told a news conference that the experiment had rather
# shown 8 per cent higher consumption of electricity.
# From Alex Krivenyshev (2008-05-15):
#
# Here is an article that Pakistan plan to introduce Daylight Saving Time
# on June 1, 2008 for 3 months.
#
# "... The federal cabinet on Wednesday announced a new conservation plan to help
# reduce load shedding by approving the closure of commercial centres at 9pm and
# moving clocks forward by one hour for the next three months.
# ...."
#
# http://www.worldtimezone.net/dst_news/dst_news_pakistan01.html
# http://www.dailytimes.com.pk/default.asp?page=2008%5C05%5C15%5Cstory_15-5-2008_pg1_4
# From Arthur David Olson (2008-05-19):
# XXX--midnight transitions is a guess; 2008 only is a guess.
# From Alexander Krivenyshev (2008-08-28):
# Pakistan government has decided to keep the watches one-hour advanced
# for another 2 months - plan to return to Standard Time on October 31
# instead of August 31.
#
# http://www.worldtimezone.com/dst_news/dst_news_pakistan02.html
# http://dailymailnews.com/200808/28/news/dmbrn03.html
# From Alexander Krivenyshev (2009-04-08):
# Based on previous media reports that "... proposed plan to
# advance clocks by one hour from May 1 will cause disturbance
# to the working schedules rather than bringing discipline in
# official working."
# http://www.thenews.com.pk/daily_detail.asp?id=171280
#
# recent news that instead of May 2009 - Pakistan plan to
# introduce DST from April 15, 2009
#
# FYI: Associated Press Of Pakistan
# April 08, 2009
# Cabinet okays proposal to advance clocks by one hour from April 15
# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=73043&Itemid=1
# http://www.worldtimezone.com/dst_news/dst_news_pakistan05.html
#
# ....
# The Federal Cabinet on Wednesday approved the proposal to
# advance clocks in the country by one hour from April 15 to
# conserve energy"
# From Steffen Thorsen (2009-09-17):
# "The News International," Pakistan reports that: "The Federal
# Government has decided to restore the previous time by moving the
# clocks backward by one hour from October 1. A formal announcement to
# this effect will be made after the Prime Minister grants approval in
# this regard."
# http://www.thenews.com.pk/updates.asp?id=87168
# From Alexander Krivenyshev (2009-09-28):
# According to Associated Press Of Pakistan, it is confirmed that
# Pakistan clocks across the country would be turned back by an hour from October
# 1, 2009.
#
# "Clocks to go back one hour from 1 Oct"
# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=86715&Itemid=2
# http://www.worldtimezone.com/dst_news/dst_news_pakistan07.htm
# From Steffen Thorsen (2009-09-29):
# Alexander Krivenyshev wrote:
# > According to Associated Press Of Pakistan, it is confirmed that
# > Pakistan clocks across the country would be turned back by an hour from October
# > 1, 2009.
#
# Now they seem to have changed their mind, November 1 is the new date:
# http://www.thenews.com.pk/top_story_detail.asp?Id=24742
# "The country's clocks will be reversed by one hour on November 1.
# Officials of Federal Ministry for Interior told this to Geo News on
# Monday."
#
# And more importantly, it seems that these dates will be kept every year:
# "It has now been decided that clocks will be wound forward by one hour
# on April 15 and reversed by an hour on November 1 every year without
# obtaining prior approval, the officials added."
#
# We have confirmed this year's end date with both with the Ministry of
# Water and Power and the Pakistan Electric Power Company:
# http://www.timeanddate.com/news/time/pakistan-ends-dst09.html
# From Christoph Göhre (2009-10-01):
# [T]he German Consulate General in Karachi reported me today that Pakistan
# will go back to standard time on 1st of November.
# From Steffen Thorsen (2010-03-26):
# Steffen Thorsen wrote:
# > On Thursday (2010-03-25) it was announced that DST would start in
# > Pakistan on 2010-04-01.
# >
# > Then today, the president said that they might have to revert the
# > decision if it is not supported by the parliament. So at the time
# > being, it seems unclear if DST will be actually observed or not - but
# > April 1 could be a more likely date than April 15.
# Now, it seems that the decision to not observe DST in final:
#
# "Govt Withdraws Plan To Advance Clocks"
# http://www.apakistannews.com/govt-withdraws-plan-to-advance-clocks-172041
#
# "People laud PM's announcement to end DST"
# http://www.app.com.pk/en_/index.php?option=com_content&task=view&id=99374&Itemid=2
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Pakistan 2002 only - Apr Sun>=2 0:01 1:00 S
Rule Pakistan 2002 only - Oct Sun>=2 0:01 0 -
Rule Pakistan 2008 only - Jun 1 0:00 1:00 S
Rule Pakistan 2008 only - Nov 1 0:00 0 -
Rule Pakistan 2009 only - Apr 15 0:00 1:00 S
Rule Pakistan 2009 only - Nov 1 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Karachi 4:28:12 - LMT 1907
5:30 - IST 1942 Sep
5:30 1:00 IST 1945 Oct 15
5:30 - IST 1951 Sep 30
5:00 - KART 1971 Mar 26 # Karachi Time
5:00 Pakistan PK%sT # Pakistan Time
# Palestine
# From Amos Shapir (1998-02-15):
#
# From 1917 until 1948-05-15, all of Palestine, including the parts now
# known as the Gaza Strip and the West Bank, was under British rule.
# Therefore the rules given for Israel for that period, apply there too...
#
# The Gaza Strip was under Egyptian rule between 1948-05-15 until 1967-06-05
# (except a short occupation by Israel from 1956-11 till 1957-03, but no
# time zone was affected then). It was never formally annexed to Egypt,
# though.
#
# The rest of Palestine was under Jordanian rule at that time, formally
# annexed in 1950 as the West Bank (and the word "Trans" was dropped from
# the country's previous name of "the Hashemite Kingdom of the
# Trans-Jordan"). So the rules for Jordan for that time apply. Major
# towns in that area are Nablus (Shchem), El-Halil (Hebron), Ramallah, and
# East Jerusalem.
#
# Both areas were occupied by Israel in June 1967, but not annexed (except
# for East Jerusalem). They were on Israel time since then; there might
# have been a Military Governor's order about time zones, but I'm not aware
# of any (such orders may have been issued semi-annually whenever summer
# time was in effect, but maybe the legal aspect of time was just neglected).
#
# The Palestinian Authority was established in 1993, and got hold of most
# towns in the West Bank and Gaza by 1995. I know that in order to
# demonstrate...independence, they have been switching to
# summer time and back on a different schedule than Israel's, but I don't
# know when this was started, or what algorithm is used (most likely the
# Jordanian one).
#
# To summarize, the table should probably look something like that:
#
# Area \ when | 1918-1947 | 1948-1967 | 1967-1995 | 1996-
# ------------+-----------+-----------+-----------+-----------
# Israel | Zion | Zion | Zion | Zion
# West bank | Zion | Jordan | Zion | Jordan
# Gaza | Zion | Egypt | Zion | Jordan
#
# I guess more info may be available from the PA's web page (if/when they
# have one).
# From Paul Eggert (2006-03-22):
# Shanks & Pottenger write that Gaza did not observe DST until 1957, but go
# with Shapir and assume that it observed DST from 1940 through 1947,
# and that it used Jordanian rules starting in 1996.
# We don't yet need a separate entry for the West Bank, since
# the only differences between it and Gaza that we know about
# occurred before our cutoff date of 1970.
# However, as we get more information, we may need to add entries
# for parts of the West Bank as they transitioned from Israel's rules
# to Palestine's rules.
# From IINS News Service - Israel - 1998-03-23 10:38:07 Israel time,
# forwarded by Ephraim Silverberg:
#
# Despite the fact that Israel changed over to daylight savings time
# last week, the PLO Authority (PA) has decided not to turn its clocks
# one-hour forward at this time. As a sign of independence from Israeli rule,
# the PA has decided to implement DST in April.
# From Paul Eggert (1999-09-20):
# Daoud Kuttab writes in Holiday havoc
#
# (Jerusalem Post, 1999-04-22) that
# the Palestinian National Authority changed to DST on 1999-04-15.
# I vaguely recall that they switch back in October (sorry, forgot the source).
# For now, let's assume that the spring switch was at 24:00,
# and that they switch at 0:00 on the 3rd Fridays of April and October.
# From Paul Eggert (2005-11-22):
# Starting 2004 transitions are from Steffen Thorsen's web site timeanddate.com.
# From Steffen Thorsen (2005-11-23):
# A user from Gaza reported that Gaza made the change early because of
# the Ramadan. Next year Ramadan will be even earlier, so I think
# there is a good chance next year's end date will be around two weeks
# earlier - the same goes for Jordan.
# From Steffen Thorsen (2006-08-17):
# I was informed by a user in Bethlehem that in Bethlehem it started the
# same day as Israel, and after checking with other users in the area, I
# was informed that they started DST one day after Israel. I was not
# able to find any authoritative sources at the time, nor details if
# Gaza changed as well, but presumed Gaza to follow the same rules as
# the West Bank.
# From Steffen Thorsen (2006-09-26):
# according to the Palestine News Network (2006-09-19):
# http://english.pnn.ps/index.php?option=com_content&task=view&id=596&Itemid=5
# > The Council of Ministers announced that this year its winter schedule
# > will begin early, as of midnight Thursday. It is also time to turn
# > back the clocks for winter. Friday will begin an hour late this week.
# I guess it is likely that next year's date will be moved as well,
# because of the Ramadan.
# From Jesper Nørgaard Welen (2007-09-18):
# According to Steffen Thorsen's web site the Gaza Strip and the rest of the
# Palestinian territories left DST early on 13.th. of September at 2:00.
# From Paul Eggert (2007-09-20):
# My understanding is that Gaza and the West Bank disagree even over when
# the weekend is (Thursday+Friday versus Friday+Saturday), so I'd be a bit
# surprised if they agreed about DST. But for now, assume they agree.
# For lack of better information, predict that future changes will be
# the 2nd Thursday of September at 02:00.
# From Alexander Krivenyshev (2008-08-28):
# Here is an article, that Mideast running on different clocks at Ramadan.
#
# Gaza Strip (as Egypt) ended DST at midnight Thursday (Aug 28, 2008), while
# the West Bank will end Daylight Saving Time at midnight Sunday (Aug 31, 2008).
#
# http://www.guardian.co.uk/world/feedarticle/7759001
# http://www.abcnews.go.com/International/wireStory?id=5676087
# http://www.worldtimezone.com/dst_news/dst_news_gazastrip01.html
# From Alexander Krivenyshev (2009-03-26):
# According to the Palestine News Network (arabic.pnn.ps), Palestinian
# government decided to start Daylight Time on Thursday night March
# 26 and continue until the night of 27 September 2009.
#
# (in Arabic)
# http://arabic.pnn.ps/index.php?option=com_content&task=view&id=50850
#
# (English translation)
# http://www.worldtimezone.com/dst_news/dst_news_westbank01.html
# From Steffen Thorsen (2009-08-31):
# Palestine's Council of Ministers announced that they will revert back to
# winter time on Friday, 2009-09-04.
#
# One news source:
# http://www.safa.ps/ara/?action=showdetail&seid=4158
# (Palestinian press agency, Arabic),
# Google translate: "Decided that the Palestinian government in Ramallah
# headed by Salam Fayyad, the start of work in time for the winter of
# 2009, starting on Friday approved the fourth delay Sept. clock sixty
# minutes per hour as of Friday morning."
#
# We are not sure if Gaza will do the same, last year they had a different
# end date, we will keep this page updated:
# http://www.timeanddate.com/news/time/westbank-gaza-dst-2009.html
# From Alexander Krivenyshev (2009-09-02):
# Seems that Gaza Strip will go back to Winter Time same date as West Bank.
#
# According to Palestinian Ministry Of Interior, West Bank and Gaza Strip plan
# to change time back to Standard time on September 4, 2009.
#
# "Winter time unite the West Bank and Gaza"
# (from Palestinian National Authority):
# http://www.moi.gov.ps/en/?page=633167343250594025&nid=11505
# http://www.worldtimezone.com/dst_news/dst_news_gazastrip02.html
# From Alexander Krivenyshev (2010-03-19):
# According to Voice of Palestine DST will last for 191 days, from March
# 26, 2010 till "the last Sunday before the tenth day of Tishri
# (October), each year" (October 03, 2010?)
#
# http://palvoice.org/forums/showthread.php?t=245697
# (in Arabic)
# http://www.worldtimezone.com/dst_news/dst_news_westbank03.html
# From Steffen Thorsen (2010-03-24):
# ...Ma'an News Agency reports that Hamas cabinet has decided it will
# start one day later, at 12:01am. Not sure if they really mean 12:01am or
# noon though:
#
# http://www.maannews.net/eng/ViewDetails.aspx?ID=271178
# (Ma'an News Agency)
# "At 12:01am Friday, clocks in Israel and the West Bank will change to
# 1:01am, while Gaza clocks will change at 12:01am Saturday morning."
# From Steffen Thorsen (2010-08-11):
# According to several sources, including
# http://www.maannews.net/eng/ViewDetails.aspx?ID=306795
# the clocks were set back one hour at 2010-08-11 00:00:00 local time in
# Gaza and the West Bank.
# Some more background info:
# http://www.timeanddate.com/news/time/westbank-gaza-end-dst-2010.html
# From Steffen Thorsen (2011-08-26):
# Gaza and the West Bank did go back to standard time in the beginning of
# August, and will now enter daylight saving time again on 2011-08-30
# 00:00 (so two periods of DST in 2011). The pause was because of
# Ramadan.
#
# http://www.maannews.net/eng/ViewDetails.aspx?ID=416217
# Additional info:
# http://www.timeanddate.com/news/time/palestine-dst-2011.html
# From Alexander Krivenyshev (2011-08-27):
# According to the article in The Jerusalem Post:
# "...Earlier this month, the Palestinian government in the West Bank decided to
# move to standard time for 30 days, during Ramadan. The Palestinians in the
# Gaza Strip accepted the change and also moved their clocks one hour back.
# The Hamas government said on Saturday that it won't observe summertime after
# the Muslim feast of Id al-Fitr, which begins on Tuesday..."
# ...
# http://www.jpost.com/MiddleEast/Article.aspx?id=235650
# http://www.worldtimezone.com/dst_news/dst_news_gazastrip05.html
# The rules for Egypt are stolen from the 'africa' file.
# From Steffen Thorsen (2011-09-30):
# West Bank did end Daylight Saving Time this morning/midnight (2011-09-30
# 00:00).
# So West Bank and Gaza now have the same time again.
#
# Many sources, including:
# http://www.maannews.net/eng/ViewDetails.aspx?ID=424808
# From Steffen Thorsen (2012-03-26):
# Palestinian news sources tell that both Gaza and West Bank will start DST
# on Friday (Thursday midnight, 2012-03-29 24:00).
# Some of many sources in Arabic:
# http://www.samanews.com/index.php?act=Show&id=122638
#
# http://safa.ps/details/news/74352/%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%AA%D9%88%D9%82%D9%8A%D8%AA-%D8%A7%D9%84%D8%B5%D9%8A%D9%81%D9%8A-%D8%A8%D8%A7%D9%84%D8%B6%D9%81%D8%A9-%D9%88%D8%BA%D8%B2%D8%A9-%D9%84%D9%8A%D9%84%D8%A9-%D8%A7%D9%84%D8%AC%D9%85%D8%B9%D8%A9.html
#
# Our brief summary:
# http://www.timeanddate.com/news/time/gaza-west-bank-dst-2012.html
# From Steffen Thorsen (2013-03-26):
# The following news sources tells that Palestine will "start daylight saving
# time from midnight on Friday, March 29, 2013" (translated).
# [These are in Arabic and are for Gaza and for Ramallah, respectively.]
# http://www.samanews.com/index.php?act=Show&id=154120
# http://safa.ps/details/news/99844/%D8%B1%D8%A7%D9%85-%D8%A7%D9%84%D9%84%D9%87-%D8%A8%D8%AF%D8%A1-%D8%A7%D9%84%D8%AA%D9%88%D9%82%D9%8A%D8%AA-%D8%A7%D9%84%D8%B5%D9%8A%D9%81%D9%8A-29-%D8%A7%D9%84%D8%AC%D8%A7%D8%B1%D9%8A.html
# From Steffen Thorsen (2013-09-24):
# The Gaza and West Bank are ending DST Thursday at midnight
# (2013-09-27 00:00:00) (one hour earlier than last year...).
# This source in English, says "that winter time will go into effect
# at midnight on Thursday in the West Bank and Gaza Strip":
# http://english.wafa.ps/index.php?action=detail&id=23246
# official source...:
# http://www.palestinecabinet.gov.ps/ar/Views/ViewDetails.aspx?pid=1252
# From Paul Eggert (2013-09-24):
# For future dates, guess the last Thursday in March at 24:00 through
# the first Friday on or after September 21 at 00:00. This is consistent with
# the predictions in today's editions of the following URLs,
# which are for Gaza and Hebron respectively:
# http://www.timeanddate.com/worldclock/timezone.html?n=702
# http://www.timeanddate.com/worldclock/timezone.html?n=2364
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule EgyptAsia 1957 only - May 10 0:00 1:00 S
Rule EgyptAsia 1957 1958 - Oct 1 0:00 0 -
Rule EgyptAsia 1958 only - May 1 0:00 1:00 S
Rule EgyptAsia 1959 1967 - May 1 1:00 1:00 S
Rule EgyptAsia 1959 1965 - Sep 30 3:00 0 -
Rule EgyptAsia 1966 only - Oct 1 3:00 0 -
Rule Palestine 1999 2005 - Apr Fri>=15 0:00 1:00 S
Rule Palestine 1999 2003 - Oct Fri>=15 0:00 0 -
Rule Palestine 2004 only - Oct 1 1:00 0 -
Rule Palestine 2005 only - Oct 4 2:00 0 -
Rule Palestine 2006 2007 - Apr 1 0:00 1:00 S
Rule Palestine 2006 only - Sep 22 0:00 0 -
Rule Palestine 2007 only - Sep Thu>=8 2:00 0 -
Rule Palestine 2008 2009 - Mar lastFri 0:00 1:00 S
Rule Palestine 2008 only - Sep 1 0:00 0 -
Rule Palestine 2009 only - Sep Fri>=1 1:00 0 -
Rule Palestine 2010 only - Mar 26 0:00 1:00 S
Rule Palestine 2010 only - Aug 11 0:00 0 -
Rule Palestine 2011 only - Apr 1 0:01 1:00 S
Rule Palestine 2011 only - Aug 1 0:00 0 -
Rule Palestine 2011 only - Aug 30 0:00 1:00 S
Rule Palestine 2011 only - Sep 30 0:00 0 -
Rule Palestine 2012 max - Mar lastThu 24:00 1:00 S
Rule Palestine 2012 only - Sep 21 1:00 0 -
Rule Palestine 2013 max - Sep Fri>=21 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Gaza 2:17:52 - LMT 1900 Oct
2:00 Zion EET 1948 May 15
2:00 EgyptAsia EE%sT 1967 Jun 5
2:00 Zion I%sT 1996
2:00 Jordan EE%sT 1999
2:00 Palestine EE%sT 2008 Aug 29 0:00
2:00 - EET 2008 Sep
2:00 Palestine EE%sT 2010
2:00 - EET 2010 Mar 27 0:01
2:00 Palestine EE%sT 2011 Aug 1
2:00 - EET 2012
2:00 Palestine EE%sT
Zone Asia/Hebron 2:20:23 - LMT 1900 Oct
2:00 Zion EET 1948 May 15
2:00 EgyptAsia EE%sT 1967 Jun 5
2:00 Zion I%sT 1996
2:00 Jordan EE%sT 1999
2:00 Palestine EE%sT
# Paracel Is
# no information
# Philippines
# On 1844-08-16, Narciso Clavería, governor-general of the
# Philippines, issued a proclamation announcing that 1844-12-30 was to
# be immediately followed by 1845-01-01; see R.H. van Gent's
# History of the International Date Line
# .
# The rest of the data are from Shanks & Pottenger.
# From Paul Eggert (2006-04-25):
# Tomorrow's Manila Standard reports that the Philippines Department of
# Trade and Industry is considering adopting DST this June when the
# rainy season begins. See
# .
# For now, we'll ignore this, since it's not definite and we lack details.
#
# From Jesper Nørgaard Welen (2006-04-26):
# ... claims that Philippines had DST last time in 1990:
# http://story.philippinetimes.com/p.x/ct/9/id/145be20cc6b121c0/cid/3e5bbccc730d258c/
# [a story dated 2006-04-25 by Cris Larano of Dow Jones Newswires,
# but no details]
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Phil 1936 only - Nov 1 0:00 1:00 S
Rule Phil 1937 only - Feb 1 0:00 0 -
Rule Phil 1954 only - Apr 12 0:00 1:00 S
Rule Phil 1954 only - Jul 1 0:00 0 -
Rule Phil 1978 only - Mar 22 0:00 1:00 S
Rule Phil 1978 only - Sep 21 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31
8:04:00 - LMT 1899 May 11
8:00 Phil PH%sT 1942 May
9:00 - JST 1944 Nov
8:00 Phil PH%sT
# Qatar
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha
4:00 - GST 1972 Jun
3:00 - AST
# Saudi Arabia
#
# From Paul Eggert (2014-07-15):
# Time in Saudi Arabia and other countries in the Arabian peninsula was not
# standardized until relatively recently; we don't know when, and possibly it
# has never been made official. Richard P Hunt, in "Islam city yielding to
# modern times", New York Times (1961-04-09), p 20, wrote that only airlines
# observed standard time, and that people in Jeddah mostly observed quasi-solar
# time, doing so by setting their watches at sunrise to 6 o'clock (or to 12
# o'clock for "Arab" time).
#
# The TZ database cannot represent quasi-solar time; airline time is the best
# we can do. The 1946 foreign air news digest of the U.S. Civil Aeronautics
# Board (OCLC 42299995) reported that the "... Arabian Government, inaugurated
# a weekly Dhahran-Cairo service, via the Saudi Arabian cities of Riyadh and
# Jidda, on March 14, 1947". Shanks & Pottenger guessed 1950; go with the
# earlier date.
#
# Shanks & Pottenger also state that until 1968-05-01 Saudi Arabia had two
# time zones; the other zone, at UTC+4, was in the far eastern part of
# the country. Ignore this, as it's before our 1970 cutoff.
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Riyadh 3:06:52 - LMT 1947 Mar 14
3:00 - AST
# Singapore
# The data here are taken from Mok Ly Yng (2003-10-30)
# .
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1
6:55:25 - SMT 1905 Jun 1 # Singapore M.T.
7:00 - MALT 1933 Jan 1 # Malaya Time
7:00 0:20 MALST 1936 Jan 1
7:20 - MALT 1941 Sep 1
7:30 - MALT 1942 Feb 16
9:00 - JST 1945 Sep 12
7:30 - MALT 1965 Aug 9 # independence
7:30 - SGT 1982 Jan 1 # Singapore Time
8:00 - SGT
# Spratly Is
# no information
# Sri Lanka
# From Paul Eggert (2013-02-21):
# Milne says "Madras mean time use from May 1, 1898. Prior to this Colombo
# mean time, 5h. 4m. 21.9s. F., was used." But 5:04:21.9 differs considerably
# from Colombo's meridian 5:19:24, so for now ignore Milne and stick with
# Shanks and Pottenger.
# From Paul Eggert (1996-09-03):
# "Sri Lanka advances clock by an hour to avoid blackout"
# (, 1996-05-24,
# no longer available as of 1999-08-17)
# reported "the country's standard time will be put forward by one hour at
# midnight Friday (1830 GMT) 'in the light of the present power crisis'."
#
# From Dharmasiri Senanayake, Sri Lanka Media Minister (1996-10-24), as quoted
# by Shamindra in Daily News - Hot News Section
# (1996-10-26):
# With effect from 12.30 a.m. on 26th October 1996
# Sri Lanka will be six (06) hours ahead of GMT.
# From Jesper Nørgaard Welen (2006-04-14), quoting Sri Lanka News Online
# (2006-04-13):
# 0030 hrs on April 15, 2006 (midnight of April 14, 2006 +30 minutes)
# at present, become 2400 hours of April 14, 2006 (midnight of April 14, 2006).
# From Peter Apps and Ranga Sirila of Reuters (2006-04-12) in:
#
# [The Tamil Tigers] never accepted the original 1996 time change and simply
# kept their clocks set five and a half hours ahead of Greenwich Mean
# Time (GMT), in line with neighbor India.
# From Paul Eggert (2006-04-18):
# People who live in regions under Tamil control can use [TZ='Asia/Kolkata'],
# as that zone has agreed with the Tamil areas since our cutoff date of 1970.
# From K Sethu (2006-04-25):
# I think the abbreviation LKT originated from the world of computers at
# the time of or subsequent to the time zone changes by SL Government
# twice in 1996 and probably SL Government or its standardization
# agencies never declared an abbreviation as a national standard.
#
# I recollect before the recent change the government announcements
# mentioning it as simply changing Sri Lanka Standard Time or Sri Lanka
# Time and no mention was made about the abbreviation.
#
# If we look at Sri Lanka Department of Government's "Official News
# Website of Sri Lanka" ... http://www.news.lk/ we can see that they
# use SLT as abbreviation in time stamp at the beginning of each news
# item....
#
# Within Sri Lanka I think LKT is well known among computer users and
# administrators. In my opinion SLT may not be a good choice because the
# nation's largest telcom / internet operator Sri Lanka Telcom is well
# known by that abbreviation - simply as SLT (there IP domains are
# slt.lk and sltnet.lk).
#
# But if indeed our government has adopted SLT as standard abbreviation
# (that we have not known so far) then it is better that it be used for
# all computers.
# From Paul Eggert (2006-04-25):
# One possibility is that we wait for a bit for the dust to settle down
# and then see what people actually say in practice.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Colombo 5:19:24 - LMT 1880
5:19:32 - MMT 1906 # Moratuwa Mean Time
5:30 - IST 1942 Jan 5
5:30 0:30 IHST 1942 Sep
5:30 1:00 IST 1945 Oct 16 2:00
5:30 - IST 1996 May 25 0:00
6:30 - LKT 1996 Oct 26 0:30
6:00 - LKT 2006 Apr 15 0:30
5:30 - IST
# Syria
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Syria 1920 1923 - Apr Sun>=15 2:00 1:00 S
Rule Syria 1920 1923 - Oct Sun>=1 2:00 0 -
Rule Syria 1962 only - Apr 29 2:00 1:00 S
Rule Syria 1962 only - Oct 1 2:00 0 -
Rule Syria 1963 1965 - May 1 2:00 1:00 S
Rule Syria 1963 only - Sep 30 2:00 0 -
Rule Syria 1964 only - Oct 1 2:00 0 -
Rule Syria 1965 only - Sep 30 2:00 0 -
Rule Syria 1966 only - Apr 24 2:00 1:00 S
Rule Syria 1966 1976 - Oct 1 2:00 0 -
Rule Syria 1967 1978 - May 1 2:00 1:00 S
Rule Syria 1977 1978 - Sep 1 2:00 0 -
Rule Syria 1983 1984 - Apr 9 2:00 1:00 S
Rule Syria 1983 1984 - Oct 1 2:00 0 -
Rule Syria 1986 only - Feb 16 2:00 1:00 S
Rule Syria 1986 only - Oct 9 2:00 0 -
Rule Syria 1987 only - Mar 1 2:00 1:00 S
Rule Syria 1987 1988 - Oct 31 2:00 0 -
Rule Syria 1988 only - Mar 15 2:00 1:00 S
Rule Syria 1989 only - Mar 31 2:00 1:00 S
Rule Syria 1989 only - Oct 1 2:00 0 -
Rule Syria 1990 only - Apr 1 2:00 1:00 S
Rule Syria 1990 only - Sep 30 2:00 0 -
Rule Syria 1991 only - Apr 1 0:00 1:00 S
Rule Syria 1991 1992 - Oct 1 0:00 0 -
Rule Syria 1992 only - Apr 8 0:00 1:00 S
Rule Syria 1993 only - Mar 26 0:00 1:00 S
Rule Syria 1993 only - Sep 25 0:00 0 -
# IATA SSIM (1998-02) says 1998-04-02;
# (1998-09) says 1999-03-29 and 1999-09-29; (1999-02) says 1999-04-02,
# 2000-04-02, and 2001-04-02; (1999-09) says 2000-03-31 and 2001-03-31;
# (2006) says 2006-03-31 and 2006-09-22;
# for now ignore all these claims and go with Shanks & Pottenger,
# except for the 2006-09-22 claim (which seems right for Ramadan).
Rule Syria 1994 1996 - Apr 1 0:00 1:00 S
Rule Syria 1994 2005 - Oct 1 0:00 0 -
Rule Syria 1997 1998 - Mar lastMon 0:00 1:00 S
Rule Syria 1999 2006 - Apr 1 0:00 1:00 S
# From Stephen Colebourne (2006-09-18):
# According to IATA data, Syria will change DST on 21st September [21:00 UTC]
# this year [only].... This is probably related to Ramadan, like Egypt.
Rule Syria 2006 only - Sep 22 0:00 0 -
# From Paul Eggert (2007-03-29):
# Today the AP reported "Syria will switch to summertime at midnight Thursday."
# http://www.iht.com/articles/ap/2007/03/29/africa/ME-GEN-Syria-Time-Change.php
Rule Syria 2007 only - Mar lastFri 0:00 1:00 S
# From Jesper Nørgaard (2007-10-27):
# The sister center ICARDA of my work CIMMYT is confirming that Syria DST will
# not take place 1st November at 0:00 o'clock but 1st November at 24:00 or
# rather Midnight between Thursday and Friday. This does make more sense than
# having it between Wednesday and Thursday (two workdays in Syria) since the
# weekend in Syria is not Saturday and Sunday, but Friday and Saturday. So now
# it is implemented at midnight of the last workday before weekend...
#
# From Steffen Thorsen (2007-10-27):
# Jesper Nørgaard Welen wrote:
#
# > "Winter local time in Syria will be observed at midnight of Thursday 1
# > November 2007, and the clock will be put back 1 hour."
#
# I found confirmation on this in this gov.sy-article (Arabic):
# http://wehda.alwehda.gov.sy/_print_veiw.asp?FileName=12521710520070926111247
#
# which using Google's translate tools says:
# Council of Ministers also approved the commencement of work on
# identifying the winter time as of Friday, 2/11/2007 where the 60th
# minute delay at midnight Thursday 1/11/2007.
Rule Syria 2007 only - Nov Fri>=1 0:00 0 -
# From Stephen Colebourne (2008-03-17):
# For everyone's info, I saw an IATA time zone change for [Syria] for
# this month (March 2008) in the last day or so...This is the data IATA
# are now using:
# Country Time Standard --- DST Start --- --- DST End --- DST
# Name Zone Variation Time Date Time Date
# Variation
# Syrian Arab
# Republic SY +0200 2200 03APR08 2100 30SEP08 +0300
# 2200 02APR09 2100 30SEP09 +0300
# 2200 01APR10 2100 30SEP10 +0300
# From Arthur David Olson (2008-03-17):
# Here's a link to English-language coverage by the Syrian Arab News
# Agency (SANA)...
# http://www.sana.sy/eng/21/2008/03/11/165173.htm
# ...which reads (in part) "The Cabinet approved the suggestion of the
# Ministry of Electricity to begin daylight savings time on Friday April
# 4th, advancing clocks one hour ahead on midnight of Thursday April 3rd."
# Since Syria is two hours east of UTC, the 2200 and 2100 transition times
# shown above match up with midnight in Syria.
# From Arthur David Olson (2008-03-18):
# My best guess at a Syrian rule is "the Friday nearest April 1";
# coding that involves either using a "Mar Fri>=29" construct that old time zone
# compilers can't handle or having multiple Rules (a la Israel).
# For now, use "Apr Fri>=1", and go with IATA on a uniform Sep 30 end.
# From Steffen Thorsen (2008-10-07):
# Syria has now officially decided to end DST on 2008-11-01 this year,
# according to the following article in the Syrian Arab News Agency (SANA).
#
# The article is in Arabic, and seems to tell that they will go back to
# winter time on 2008-11-01 at 00:00 local daylight time (delaying/setting
# clocks back 60 minutes).
#
# http://sana.sy/ara/2/2008/10/07/195459.htm
# From Steffen Thorsen (2009-03-19):
# Syria will start DST on 2009-03-27 00:00 this year according to many sources,
# two examples:
#
# http://www.sana.sy/eng/21/2009/03/17/217563.htm
# (English, Syrian Arab News # Agency)
# http://thawra.alwehda.gov.sy/_View_news2.asp?FileName=94459258720090318012209
# (Arabic, gov-site)
#
# We have not found any sources saying anything about when DST ends this year.
#
# Our summary
# http://www.timeanddate.com/news/time/syria-dst-starts-march-27-2009.html
# From Steffen Thorsen (2009-10-27):
# The Syrian Arab News Network on 2009-09-29 reported that Syria will
# revert back to winter (standard) time on midnight between Thursday
# 2009-10-29 and Friday 2009-10-30:
# http://www.sana.sy/ara/2/2009/09/29/247012.htm (Arabic)
# From Arthur David Olson (2009-10-28):
# We'll see if future DST switching times turn out to be end of the last
# Thursday of the month or the start of the last Friday of the month or
# something else. For now, use the start of the last Friday.
# From Steffen Thorsen (2010-03-17):
# The "Syrian News Station" reported on 2010-03-16 that the Council of
# Ministers has decided that Syria will start DST on midnight Thursday
# 2010-04-01: (midnight between Thursday and Friday):
# http://sns.sy/sns/?path=news/read/11421 (Arabic)
# From Steffen Thorsen (2012-03-26):
# Today, Syria's government announced that they will start DST early on Friday
# (00:00). This is a bit earlier than the past two years.
#
# From Syrian Arab News Agency, in Arabic:
# http://www.sana.sy/ara/2/2012/03/26/408215.htm
#
# Our brief summary:
# http://www.timeanddate.com/news/time/syria-dst-2012.html
# From Arthur David Olson (2012-03-27):
# Assume last Friday in March going forward XXX.
Rule Syria 2008 only - Apr Fri>=1 0:00 1:00 S
Rule Syria 2008 only - Nov 1 0:00 0 -
Rule Syria 2009 only - Mar lastFri 0:00 1:00 S
Rule Syria 2010 2011 - Apr Fri>=1 0:00 1:00 S
Rule Syria 2012 max - Mar lastFri 0:00 1:00 S
Rule Syria 2009 max - Oct lastFri 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq
2:00 Syria EE%sT
# Tajikistan
# From Shanks & Pottenger.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2
5:00 - DUST 1930 Jun 21 # Dushanbe Time
6:00 RussiaAsia DUS%sT 1991 Mar 31 2:00s
5:00 1:00 DUSST 1991 Sep 9 2:00s
5:00 - TJT # Tajikistan Time
# Thailand
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Bangkok 6:42:04 - LMT 1880
6:42:04 - BMT 1920 Apr # Bangkok Mean Time
7:00 - ICT
# Turkmenistan
# From Shanks & Pottenger.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Ashgabat 3:53:32 - LMT 1924 May 2 # or Ashkhabad
4:00 - ASHT 1930 Jun 21 # Ashkhabad Time
5:00 RussiaAsia ASH%sT 1991 Mar 31 2:00
4:00 RussiaAsia ASH%sT 1991 Oct 27 # independence
4:00 RussiaAsia TM%sT 1992 Jan 19 2:00
5:00 - TMT
# United Arab Emirates
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Dubai 3:41:12 - LMT 1920
4:00 - GST
# Uzbekistan
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Samarkand 4:27:12 - LMT 1924 May 2
4:00 - SAMT 1930 Jun 21 # Samarkand Time
5:00 - SAMT 1981 Apr 1
5:00 1:00 SAMST 1981 Oct 1
6:00 - TAST 1982 Apr 1 # Tashkent Time
5:00 RussiaAsia SAM%sT 1991 Sep 1 # independence
5:00 RussiaAsia UZ%sT 1992
5:00 - UZT
# Milne says Tashkent was 4:37:10.8; round to nearest.
Zone Asia/Tashkent 4:37:11 - LMT 1924 May 2
5:00 - TAST 1930 Jun 21 # Tashkent Time
6:00 RussiaAsia TAS%sT 1991 Mar 31 2:00
5:00 RussiaAsia TAS%sT 1991 Sep 1 # independence
5:00 RussiaAsia UZ%sT 1992
5:00 - UZT
# Vietnam
# From Paul Eggert (2013-02-21):
# Milne gives 7:16:56 for the meridian of Saigon in 1899, as being
# used in Lower Laos, Cambodia, and Annam. But this is quite a ways
# from Saigon's location. For now, ignore this and stick with Shanks
# and Pottenger.
# From Arthur David Olson (2008-03-18):
# The English-language name of Vietnam's most populous city is "Ho Chi Minh
# City"; use Ho_Chi_Minh below to avoid a name of more than 14 characters.
# From Shanks & Pottenger:
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jun 9
7:06:20 - SMT 1911 Mar 11 0:01 # Saigon MT?
7:00 - ICT 1912 May
8:00 - ICT 1931 May
7:00 - ICT
# Yemen
# Milne says 2:59:54 was the meridian of the saluting battery at Aden,
# and that Yemen was at 1:55:56, the meridian of the Hagia Sophia.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Aden 2:59:54 - LMT 1950
3:00 - AST
@