head 1.5; access; symbols netbsd-11-0-RC4:1.4.2.1 TZDATA2026BGTZ:1.1.1.30 netbsd-11-0-RC3:1.4.2.1 TZDATA2026AGTZ:1.1.1.30 netbsd-11-0-RC2:1.4 netbsd-11-0-RC1:1.4 TZDATA2025CGTZ:1.1.1.30 perseant-exfatfs-base-20250801:1.4 netbsd-11:1.4.0.2 netbsd-11-base:1.4 TZDATA2025BGTZ:1.1.1.29 TZDATA2025AGTZ:1.1.1.28 TZDATA2025A:1.1.1.27 netbsd-10-1-RELEASE:1.1.1.22.2.3 TZDATA2024BGTZ:1.1.1.26 perseant-exfatfs-base-20240630:1.1.1.25 perseant-exfatfs:1.1.1.25.0.2 perseant-exfatfs-base:1.1.1.25 netbsd-8-3-RELEASE:1.1.1.11.4.8 netbsd-9-4-RELEASE:1.1.1.15.2.5 netbsd-10-0-RELEASE:1.1.1.22.2.3 netbsd-10-0-RC6:1.1.1.22.2.3 netbsd-10-0-RC5:1.1.1.22.2.3 netbsd-10-0-RC4:1.1.1.22.2.3 TZDATA2024AGTZ:1.1.1.25 netbsd-10-0-RC3:1.1.1.22.2.2 netbsd-10-0-RC2:1.1.1.22.2.2 TZDATA2023DGTZ:1.1.1.24 netbsd-10-0-RC1:1.1.1.22.2.1 TZDATA2023CGTZ:1.1.1.23 TZDATA2023BGTZ:1.1.1.23 TZDATA2023AGTZ:1.1.1.23 netbsd-10:1.1.1.22.0.2 netbsd-10-base:1.1.1.22 TZDATA2022GGTZ:1.1.1.22 TZDATA2022FGTZ:1.1.1.21 TZDATA2022EGTZ:1.1.1.20 TZDATA2022DGTZ:1.1.1.20 TZDATA2022CGTZ:1.1.1.19 netbsd-9-3-RELEASE:1.1.1.15.2.2 TZDATA2022AGTZ:1.1.1.18 cjep_sun2x-base1:1.1.1.17 cjep_sun2x:1.1.1.17.0.4 cjep_sun2x-base:1.1.1.17 cjep_staticlib_x-base1:1.1.1.17 netbsd-9-2-RELEASE:1.1.1.15.2.2 cjep_staticlib_x:1.1.1.17.0.2 cjep_staticlib_x-base:1.1.1.17 TZDATA2021A:1.1.1.17 TZDATA2020F:1.1.1.17 TZDATA2020D:1.1.1.17 TZDATA2020C:1.1.1.17 netbsd-9-1-RELEASE:1.1.1.15.2.2 TZDATA2020B:1.1.1.17 TZDATA2020A:1.1.1.16 phil-wifi-20200421:1.1.1.16 phil-wifi-20200411:1.1.1.16 is-mlppp:1.1.1.16.0.2 is-mlppp-base:1.1.1.16 phil-wifi-20200406:1.1.1.16 netbsd-8-2-RELEASE:1.1.1.11.4.4 netbsd-9-0-RELEASE:1.1.1.15.2.1 netbsd-9-0-RC2:1.1.1.15.2.1 netbsd-9-0-RC1:1.1.1.15.2.1 phil-wifi-20191119:1.1.1.16 TZDATA2019C:1.1.1.16 netbsd-9:1.1.1.15.0.2 netbsd-9-base:1.1.1.15 phil-wifi-20190609:1.1.1.15 netbsd-8-1-RELEASE:1.1.1.11.4.4 netbsd-8-1-RC1:1.1.1.11.4.4 TZDATA2019A:1.1.1.15 pgoyette-compat-merge-20190127:1.1.1.13.2.2 pgoyette-compat-20190127:1.1.1.15 pgoyette-compat-20190118:1.1.1.15 TZDATA2018I:1.1.1.15 TZDATA2018H:1.1.1.15 pgoyette-compat-1226:1.1.1.15 pgoyette-compat-1126:1.1.1.15 TZDATA2018G:1.1.1.15 pgoyette-compat-1020:1.1.1.15 TZDATA2018F:1.1.1.15 pgoyette-compat-0930:1.1.1.14 pgoyette-compat-0906:1.1.1.14 netbsd-7-2-RELEASE:1.1.1.1.4.8 pgoyette-compat-0728:1.1.1.14 netbsd-8-0-RELEASE:1.1.1.11.4.3 phil-wifi:1.1.1.14.0.2 phil-wifi-base:1.1.1.14 pgoyette-compat-0625:1.1.1.14 netbsd-8-0-RC2:1.1.1.11.4.3 pgoyette-compat-0521:1.1.1.14 TZDATA2018E:1.1.1.14 pgoyette-compat-0502:1.1.1.14 pgoyette-compat-0422:1.1.1.14 netbsd-8-0-RC1:1.1.1.11.4.3 pgoyette-compat-0415:1.1.1.14 pgoyette-compat-0407:1.1.1.14 pgoyette-compat-0330:1.1.1.14 TZDATA2018D:1.1.1.14 pgoyette-compat-0322:1.1.1.13 pgoyette-compat-0315:1.1.1.13 netbsd-7-1-2-RELEASE:1.1.1.1.4.6.2.1 pgoyette-compat:1.1.1.13.0.2 pgoyette-compat-base:1.1.1.13 TZDATA2018C:1.1.1.13 netbsd-7-1-1-RELEASE:1.1.1.1.4.6.2.1 matt-nb8-mediatek:1.1.1.11.4.1.0.2 matt-nb8-mediatek-base:1.1.1.11.4.1 TZDATA2017C:1.1.1.12 perseant-stdc-iso10646:1.1.1.11.0.6 perseant-stdc-iso10646-base:1.1.1.11 netbsd-8:1.1.1.11.0.4 netbsd-8-base:1.1.1.11 prg-localcount2-base3:1.1.1.11 prg-localcount2-base2:1.1.1.11 prg-localcount2-base1:1.1.1.11 prg-localcount2:1.1.1.11.0.2 prg-localcount2-base:1.1.1.11 pgoyette-localcount-20170426:1.1.1.11 bouyer-socketcan-base1:1.1.1.11 TZDATA2017B:1.1.1.11 pgoyette-localcount-20170320:1.1.1.11 netbsd-7-1:1.1.1.1.4.6.0.2 netbsd-7-1-RELEASE:1.1.1.1.4.6 TZDATA2017A:1.1.1.11 netbsd-7-1-RC2:1.1.1.1.4.5 netbsd-7-nhusb-base-20170116:1.1.1.1.4.5 bouyer-socketcan:1.1.1.10.0.2 bouyer-socketcan-base:1.1.1.10 pgoyette-localcount-20170107:1.1.1.10 netbsd-7-1-RC1:1.1.1.1.4.5 TZDATA2016J:1.1.1.10 pgoyette-localcount-20161104:1.1.1.10 TZDATA2016I:1.1.1.10 netbsd-7-0-2-RELEASE:1.1.1.1.4.4 TZDATA2016H:1.1.1.10 TZDATA2016G:1.1.1.10 localcount-20160914:1.1.1.9 netbsd-7-nhusb:1.1.1.1.4.4.0.4 netbsd-7-nhusb-base:1.1.1.1.4.4 TZDATA2016F:1.1.1.9 pgoyette-localcount-20160806:1.1.1.8 pgoyette-localcount-20160726:1.1.1.8 pgoyette-localcount:1.1.1.8.0.2 pgoyette-localcount-base:1.1.1.8 TZDATA2016D:1.1.1.8 netbsd-7-0-1-RELEASE:1.1.1.1.4.4 TZDATA2016B:1.1.1.7 netbsd-7-0:1.1.1.1.4.4.0.2 netbsd-7-0-RELEASE:1.1.1.1.4.4 TZDATA2015F:1.1.1.7 netbsd-7-0-RC3:1.1.1.1.4.3 netbsd-7-0-RC2:1.1.1.1.4.3 TZDATA2015E:1.1.1.6 netbsd-7-0-RC1:1.1.1.1.4.3 TZDATA2015B:1.1.1.5 TZDATA2015A:1.1.1.4 TZDATA2014J:1.1.1.3 TZDATA2014I:1.1.1.2 TZDATA2014H:1.1.1.2 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 @# @; 1.5 date 2025.12.19.00.59.25; author kre; state Exp; branches; next 1.4; commitid ZpAAKqYivWTshXmG; 1.4 date 2025.03.26.17.35.31; author kre; state Exp; branches 1.4.2.1; next 1.3; commitid 51LIvyJsTtUjpBOF; 1.3 date 2025.02.03.04.47.13; author kre; state Exp; branches; next 1.2; commitid I5GdBIKhQShiNYHF; 1.2 date 2025.02.02.00.39.55; author kre; state Exp; branches; next 1.1; commitid XKzhe1dLOb7gsPHF; 1.1 date 2014.08.08.08.56.50; author apb; state Exp; branches 1.1.1.1; next ; commitid iGXhXh3Wpi6OlxLx; 1.4.2.1 date 2026.04.02.16.33.43; author martin; state Exp; branches; next ; commitid aup4agd012686pAG; 1.1.1.1 date 2014.08.08.08.56.50; 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 2014.08.31.06.46.23; author apb; state Exp; branches; next 1.1.1.3; commitid 97niuh41EisdTtOx; 1.1.1.3 date 2014.11.16.07.08.11; author apb; state Exp; branches; next 1.1.1.4; commitid 3SkT3wPXTpSexnYx; 1.1.1.4 date 2015.01.31.18.23.15; author apb; state Exp; branches; next 1.1.1.5; commitid bjXoHWtuRrKnPc8y; 1.1.1.5 date 2015.03.21.15.45.37; author apb; state Exp; branches; next 1.1.1.6; commitid GIz4juHFOXHDnuey; 1.1.1.6 date 2015.06.21.15.18.58; author apb; state Exp; branches; next 1.1.1.7; commitid ASMPsep5T29Kgjqy; 1.1.1.7 date 2015.08.11.18.07.11; author apb; state Exp; branches; next 1.1.1.8; commitid kmpTo6XW4QHazSwy; 1.1.1.8 date 2016.06.01.00.03.15; author agc; state Exp; branches 1.1.1.8.2.1; next 1.1.1.9; commitid SOPsfX18yKYt5H8z; 1.1.1.9 date 2016.08.07.00.49.16; author kre; state Exp; branches; next 1.1.1.10; commitid rhYGciKcCLWDbjhz; 1.1.1.10 date 2016.09.29.20.41.00; author kre; state Exp; branches 1.1.1.10.2.1; next 1.1.1.11; commitid AKHKNrnsUu7T4eoz; 1.1.1.11 date 2017.03.01.00.37.32; author kre; state Exp; branches 1.1.1.11.4.1; next 1.1.1.12; commitid G61CluXIjUN4vMHz; 1.1.1.12 date 2017.10.24.01.27.49; author kre; state Exp; branches; next 1.1.1.13; commitid mbHKYe3Y2Ihs9fcA; 1.1.1.13 date 2018.01.24.13.52.18; author kre; state Exp; branches 1.1.1.13.2.1; next 1.1.1.14; commitid PPD9y1NZfop2k8oA; 1.1.1.14 date 2018.03.24.01.45.21; author kre; state Exp; branches 1.1.1.14.2.1; next 1.1.1.15; commitid IWaIjLBDDMC1pEvA; 1.1.1.15 date 2018.10.19.04.31.46; author kre; state Exp; branches 1.1.1.15.2.1; next 1.1.1.16; commitid iPAtPIMEH88HBwWA; 1.1.1.16 date 2019.10.08.02.44.04; author kre; state Exp; branches; next 1.1.1.17; commitid 1AlmCKr6wQbiD0GB; 1.1.1.17 date 2020.10.08.04.27.35; author kre; state Exp; branches; next 1.1.1.18; commitid tv1N52yw9rdnr3rC; 1.1.1.18 date 2022.03.20.17.59.59; author kre; state Exp; branches; next 1.1.1.19; commitid 2CSshxT0svJPXYwD; 1.1.1.19 date 2022.08.17.12.17.54; author kre; state Exp; branches; next 1.1.1.20; commitid u6rSFtMNjFhyfeQD; 1.1.1.20 date 2022.09.28.11.05.43; author kre; state Exp; branches; next 1.1.1.21; commitid 3PdVZgcK4U46vCVD; 1.1.1.21 date 2022.10.30.01.03.04; author kre; state Exp; branches; next 1.1.1.22; commitid Amc6tVs2mojy8GZD; 1.1.1.22 date 2022.12.11.06.47.00; author kre; state Exp; branches 1.1.1.22.2.1; next 1.1.1.23; commitid GVY8e8XbxvXQG65E; 1.1.1.23 date 2023.03.23.16.31.16; author kre; state Exp; branches; next 1.1.1.24; commitid Wi2azCEtD4c2EgiE; 1.1.1.24 date 2023.12.23.15.38.16; author kre; state Exp; branches; next 1.1.1.25; commitid 7McRjQIF7CaNvBRE; 1.1.1.25 date 2024.02.05.21.34.44; author kre; state Exp; branches 1.1.1.25.2.1; next 1.1.1.26; commitid Ig2l9D6xJLMl4iXE; 1.1.1.26 date 2024.10.29.21.24.51; author kre; state Exp; branches; next 1.1.1.27; commitid vTpQ269FGpZTqBvF; 1.1.1.27 date 2025.02.01.23.00.30; author kre; state Exp; branches; next 1.1.1.28; commitid mdTcRyY35YinUOHF; 1.1.1.28 date 2025.02.02.00.43.15; author kre; state Exp; branches; next 1.1.1.29; commitid pskpHkzc1w3BtPHF; 1.1.1.29 date 2025.03.26.17.34.51; author kre; state Exp; branches; next 1.1.1.30; commitid 7btFJAJt1EX3pBOF; 1.1.1.30 date 2025.12.19.00.58.41; author kre; state Exp; branches; next ; commitid VAKtOMN53YKehXmG; 1.1.1.1.2.1 date 2014.08.08.08.56.50; author tls; state dead; branches; next 1.1.1.1.2.2; commitid igbBQGexpTfGAMLx; 1.1.1.1.2.2 date 2014.08.10.06.51.02; 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 1.1.1.1.4.4.4.1; next 1.1.1.1.4.5; commitid lDxmggelKO4mAEAy; 1.1.1.1.4.5 date 2016.12.13.07.29.24; author snj; state Exp; branches; next 1.1.1.1.4.6; commitid IyKxG8PcDdpGhNxz; 1.1.1.1.4.6 date 2017.03.02.07.46.02; author snj; state Exp; branches 1.1.1.1.4.6.2.1; next 1.1.1.1.4.7; commitid jG5UaWqOyo95QWHz; 1.1.1.1.4.7 date 2017.11.05.20.42.18; author snj; state Exp; branches; next 1.1.1.1.4.8; commitid lUyNKQaJmTIaaTdA; 1.1.1.1.4.8 date 2018.03.25.14.06.33; author martin; state Exp; branches; next 1.1.1.1.4.9; commitid 9bv6yBXyEFjntQvA; 1.1.1.1.4.9 date 2018.10.30.19.29.39; author martin; state Exp; branches; next ; commitid ezVFlUIpUFyOd1YA; 1.1.1.1.4.4.2.1 date 2016.12.13.07.28.23; author snj; state Exp; branches; next 1.1.1.1.4.4.2.2; commitid zc2ZPU46EscrhNxz; 1.1.1.1.4.4.2.2 date 2017.03.02.07.44.13; author snj; state Exp; branches; next 1.1.1.1.4.4.2.3; commitid IzENadUfmsFmPWHz; 1.1.1.1.4.4.2.3 date 2017.11.05.20.44.41; author snj; state Exp; branches; next 1.1.1.1.4.4.2.4; commitid CwYTRqFsgKE0bTdA; 1.1.1.1.4.4.2.4 date 2018.03.25.14.11.39; author martin; state Exp; branches; next 1.1.1.1.4.4.2.5; commitid tixpPUjkrqqavQvA; 1.1.1.1.4.4.2.5 date 2018.10.30.19.36.52; author martin; state Exp; branches; next ; commitid jr5eATXwdQGhg1YA; 1.1.1.1.4.4.4.1 date 2017.01.18.08.46.22; author skrll; 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author bouyer; state Exp; branches; next ; commitid dUG7nkTKALCadqOz; 1.1.1.11.4.1 date 2017.11.02.21.02.06; author snj; state Exp; branches; next 1.1.1.11.4.2; commitid FmNdBv7Bu0C8mvdA; 1.1.1.11.4.2 date 2018.01.31.19.39.50; author martin; state Exp; branches; next 1.1.1.11.4.3; commitid I2GaJUZc3BCZ04pA; 1.1.1.11.4.3 date 2018.03.24.18.03.21; author snj; state Exp; branches; next 1.1.1.11.4.4; commitid DPgyGeUZFADBOJvA; 1.1.1.11.4.4 date 2018.10.21.12.10.23; author martin; state Exp; branches; next 1.1.1.11.4.5; commitid Npq23L3YyCtN4PWA; 1.1.1.11.4.5 date 2020.12.07.19.52.53; author martin; state Exp; branches; next 1.1.1.11.4.6; commitid CQwaCiST8CPxCQyC; 1.1.1.11.4.6 date 2022.10.26.18.16.43; author martin; state Exp; branches; next 1.1.1.11.4.7; commitid d5w1InjeydTDYfZD; 1.1.1.11.4.7 date 2023.12.30.19.00.33; author martin; state Exp; branches; next 1.1.1.11.4.8; commitid QBjvTBDay8GbpwSE; 1.1.1.11.4.8 date 2024.02.17.15.55.09; author martin; state Exp; branches; next ; commitid UCxcewhi2jVCNNYE; 1.1.1.13.2.1 date 2018.03.30.06.20.10; author pgoyette; state Exp; branches; next 1.1.1.13.2.2; commitid h5ZWTFXyqL8kJrwA; 1.1.1.13.2.2 date 2018.10.20.06.58.21; author pgoyette; state Exp; branches; next ; commitid mTSoqZEZ4arHnFWA; 1.1.1.14.2.1 date 2019.06.10.22.05.05; author christos; state Exp; branches; next 1.1.1.14.2.2; commitid jtc8rnCzWiEEHGqB; 1.1.1.14.2.2 date 2020.04.13.08.03.06; author martin; state Exp; branches; next ; commitid X01YhRUPVUDaec4C; 1.1.1.15.2.1 date 2019.11.24.08.30.28; author martin; state Exp; branches; next 1.1.1.15.2.2; commitid 8LxyeqV11U4P15MB; 1.1.1.15.2.2 date 2020.10.11.11.26.25; author martin; state Exp; branches; next 1.1.1.15.2.3; commitid PwOzakCxTuLGEtrC; 1.1.1.15.2.3 date 2022.10.20.13.18.54; author martin; state Exp; branches; next 1.1.1.15.2.4; commitid vbCaDtdjfZc6wsYD; 1.1.1.15.2.4 date 2023.12.30.18.35.32; author martin; state Exp; branches; next 1.1.1.15.2.5; commitid vv46SLJIoTsCgwSE; 1.1.1.15.2.5 date 2024.02.17.11.32.20; author martin; state Exp; branches; next 1.1.1.15.2.6; commitid friNK1b3ratclMYE; 1.1.1.15.2.6 date 2025.04.12.12.53.23; author martin; state Exp; branches; next 1.1.1.15.2.7; commitid rNByoqGRgcjoiLQF; 1.1.1.15.2.7 date 2025.04.13.15.20.29; author bouyer; state Exp; branches; next ; commitid MkTl52daCwk85UQF; 1.1.1.22.2.1 date 2023.04.25.15.58.37; author martin; state Exp; branches; next 1.1.1.22.2.2; commitid AZ8cpWX7dh1BovmE; 1.1.1.22.2.2 date 2023.12.29.20.41.12; author martin; state Exp; branches; next 1.1.1.22.2.3; commitid UnNQohsmNUSXWoSE; 1.1.1.22.2.3 date 2024.02.06.12.22.42; author martin; state Exp; branches; next 1.1.1.22.2.4; commitid pTARKyvqsnBQYmXE; 1.1.1.22.2.4 date 2025.04.12.12.47.26; author martin; state Exp; branches; next 1.1.1.22.2.5; commitid iC6dUDY9pz4hgLQF; 1.1.1.22.2.5 date 2025.04.13.15.13.18; author bouyer; state Exp; branches; next ; commitid mWJcQVaK58MF2UQF; 1.1.1.25.2.1 date 2025.08.02.05.54.25; author perseant; state Exp; branches; next ; commitid 23j6GFaDws3O875G; desc @@ 1.5 log @Merge tzdata2025c @ text @# tzdb data for South America 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 (2016-12-05): # # 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. # # 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 # # These tables use numeric abbreviations like -03 and -0330 for # integer hour and minute UT offsets. Although earlier editions used # alphabetic time zone abbreviations, these abbreviations were # invented and did not reflect common practice. ############################################################################### ############################################################################### # Argentina # From Bob Devine (1988-01-28): # Argentina: first Sunday in October to first Sunday in April since 1976. # Double Summer time from 1969 to 1974. Switches at midnight. # From U. S. Naval Observatory (1988-01-19): # ARGENTINA 3 H BEHIND UTC # From Hernan G. Otero (1995-06-26): # I am sending modifications to the Argentine time zone table... # AR was chosen because they are the ISO letters that represent Argentina. # Rule NAME FROM TO - IN ON AT SAVE LETTER/S Rule Arg 1930 only - Dec 1 0:00 1:00 - Rule Arg 1931 only - Apr 1 0:00 0 - Rule Arg 1931 only - Oct 15 0:00 1:00 - Rule Arg 1932 1940 - Mar 1 0:00 0 - Rule Arg 1932 1939 - Nov 1 0:00 1:00 - Rule Arg 1940 only - Jul 1 0:00 1:00 - Rule Arg 1941 only - Jun 15 0:00 0 - Rule Arg 1941 only - Oct 15 0:00 1:00 - Rule Arg 1943 only - Aug 1 0:00 0 - Rule Arg 1943 only - Oct 15 0:00 1:00 - Rule Arg 1946 only - Mar 1 0:00 0 - Rule Arg 1946 only - Oct 1 0:00 1:00 - Rule Arg 1963 only - Oct 1 0:00 0 - Rule Arg 1963 only - Dec 15 0:00 1:00 - Rule Arg 1964 1966 - Mar 1 0:00 0 - Rule Arg 1964 1966 - Oct 15 0:00 1:00 - Rule Arg 1967 only - Apr 2 0:00 0 - Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 - Rule Arg 1968 1969 - Apr Sun>=1 0:00 0 - Rule Arg 1974 only - Jan 23 0:00 1:00 - Rule Arg 1974 only - May 1 0:00 0 - Rule Arg 1988 only - Dec 1 0:00 1:00 - # # From Hernan G. Otero (1995-06-26): # These corrections were contributed by InterSoft Argentina S.A., # obtaining the data from the: # Talleres de Hidrografía Naval Argentina # (Argentine Naval Hydrography Institute) Rule Arg 1989 1993 - Mar Sun>=1 0:00 0 - Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 - # # From Hernan G. Otero (1995-06-26): # From this moment on, the law that mandated the daylight saving # time corrections was derogated and no more modifications # to the time zones (for daylight saving) are now made. # # From Rives McDow (2000-01-10): # On October 3, 1999, 0:00 local, Argentina implemented daylight savings time, # which did not result in the switch of a time zone, as they stayed 9 hours # from the International Date Line. Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 - # From Paul Eggert (2007-12-28): # DST was set to expire on March 5, not March 3, but since it was converted # to standard time on March 3 it's more convenient for us to pretend that # it ended on March 3. Rule Arg 2000 only - Mar 3 0:00 0 - # # From Peter Gradelski via Steffen Thorsen (2000-03-01): # We just checked with our São Paulo office and they say the government of # Argentina decided not to become one of the countries that go on or off DST. # So Buenos Aires should be -3 hours from GMT at all times. # # From Fabián L. Arce Jofré (2000-04-04): # The law that claimed DST for Argentina was derogated by President Fernando # de la Rúa on March 2, 2000, because it would make people spend more energy # in the winter time, rather than less. The change took effect on March 3. # # From Mariano Absatz (2001-06-06): # one of the major newspapers here in Argentina said that the 1999 # Timezone Law (which never was effectively applied) will (would?) be # in effect.... The article is at # http://ar.clarin.com/diario/2001-06-06/e-01701.htm # ... The Law itself is "Ley No. 25155", sanctioned on 1999-08-25, enacted # 1999-09-17, and published 1999-09-21. The official publication is at: # http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF # Regretfully, you have to subscribe (and pay) for the on-line version.... # # (2001-06-12): # the timezone for Argentina will not change next Sunday. # Apparently it will do so on Sunday 24th.... # http://ar.clarin.com/diario/2001-06-12/s-03501.htm # # (2001-06-25): # Last Friday (yes, the last working day before the date of the change), the # Senate annulled the 1999 law that introduced the changes later postponed. # http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm # It remains the vote of the Deputies..., but it will be the same.... # This kind of things had always been done this way in Argentina. # We are still -03:00 all year round in all of the country. # # From Steffen Thorsen (2007-12-21): # A user (Leonardo Chaim) reported that Argentina will adopt DST.... # all of the country (all Zone-entries) are affected. News reports like # http://www.lanacion.com.ar/opinion/nota.asp?nota_id=973037 indicate # that Argentina will use DST next year as well, from October to # March, although exact rules are not given. # # From Jesper Nørgaard Welen (2007-12-26) # The last hurdle of Argentina DST is over, the proposal was approved in # the lower chamber too (Diputados) with a vote 192 for and 2 against. # By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to # the original scanned proposal, where the dates and the zero hours are # clear and unambiguous...This is the article about final approval: # http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996 # # From Paul Eggert (2007-12-22): # For dates after mid-2008, the following rules are my guesses and # are quite possibly wrong, but are more likely than no DST at all. # From Alexander Krivenyshev (2008-09-05): # As per message from Carlos Alberto Fonseca Arauz (Nicaragua), # Argentina will start DST on Sunday October 19, 2008. # # http://www.worldtimezone.com/dst_news/dst_news_argentina03.html # http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish) # From Juan Manuel Docile in https://bugs.gentoo.org/240339 (2008-10-07) # via Rodrigo Severo: # Argentinian law No. 25.155 is no longer valid. # http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm # The new one is law No. 26.350 # http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm # So there is no summer time in Argentina for now. # From Mariano Absatz (2008-10-20): # Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST # in Argentina from 2008-10-19 until 2009-03-15. # http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01 # # Decree 1705/2008 excepting 12 Provinces from applying DST in the summer # 2008/2009: Catamarca, La Rioja, Mendoza, Salta, San Juan, San Luis, La # Pampa, Neuquén, Rio Negro, Chubut, Santa Cruz and Tierra del Fuego # http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01 # # Press release 235 dated Saturday October 18th, from the Government of the # Province of Jujuy saying it will not apply DST either (even when it was not # included in Decree 1705/2008). # http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc # From fullinet (2009-10-18): # As announced in # http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356 # (an official .gob.ar) under title: "Sin Cambio de Hora" # (English: "No hour change"). # # "Por el momento, el Gobierno Nacional resolvió no modificar la hora # oficial, decisión que estaba en estudio para su implementación el # domingo 18 de octubre. Desde el Ministerio de Planificación se anunció # que la Argentina hoy, en estas condiciones meteorológicas, no necesita # la modificación del huso horario, ya que 2009 nos encuentra con # crecimiento en la producción y distribución energética." Rule Arg 2007 only - Dec 30 0:00 1:00 - Rule Arg 2008 2009 - Mar Sun>=15 0:00 0 - Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 - # From Mariano Absatz (2004-05-21): # Today it was officially published that the Province of Mendoza is changing # its timezone this winter... starting tomorrow night.... # http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf # From Paul Eggert (2004-05-24): # It's Law No. 7,210. This change is due to a public power emergency, so for # now we'll assume it's for this year only. # # From Paul Eggert (2018-01-31): # Hora de verano para la República Argentina # http://buenasiembra.com.ar/esoterismo/astrologia/hora-de-verano-de-la-republica-argentina-27.html # says that standard time in Argentina from 1894-10-31 # to 1920-05-01 was -4:16:48.25. Go with this more precise value # over Shanks & Pottenger. It is upward compatible with Milne, who # says Córdoba time was -4:16:48.2. # # From Mariano Absatz (2004-06-05): # These media articles from a major newspaper mostly cover the current state: # http://www.lanacion.com.ar/04/05/27/de_604825.asp # http://www.lanacion.com.ar/04/05/28/de_605203.asp # # The following eight (8) provinces pulled clocks back to UTC-04:00 at # midnight Monday May 31st. (that is, the night between 05/31 and 06/01). # Apparently, all nine provinces would go back to UTC-03:00 at the same # time in October 17th. # # Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz, # Tierra del Fuego, Tucumán. # # From Mariano Absatz (2004-06-14): # ... this weekend, the Province of Tucumán decided it'd go back to UTC-03:00 # yesterday midnight (that is, at 24:00 Saturday 12th), since the people's # annoyance with the change is much higher than the power savings obtained.... # # From Gwillim Law (2004-06-14): # http://www.lanacion.com.ar/04/06/10/de_609078.asp ... # "The time change in Tierra del Fuego was a conflicted decision from # the start. The government had decreed that the measure would take # effect on June 1, but a normative error forced the new time to begin # three days earlier, from a Saturday to a Sunday.... # Our understanding was that the change was originally scheduled to take place # on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other # provinces). Sunday was May 30, only two days earlier. So the article # contains a contradiction. I would give more credence to the Saturday/Sunday # date than the "three days earlier" phrase, and conclude that Tierra del # Fuego set its clocks back at 2004-05-30 00:00. # # From Steffen Thorsen (2004-10-05): # The previous law 7210 which changed the province of Mendoza's time zone # back in May have been modified slightly in a new law 7277, which set the # new end date to 2004-09-26 (original date was 2004-10-17). # http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf # # From Mariano Absatz (2004-10-05): # San Juan changed from UTC-03:00 to UTC-04:00 at midnight between # Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00 # at midnight between Saturday, July 24th and Sunday, July 25th.... # http://www.sanjuan.gov.ar/prensa/archivo/000329.html # http://www.sanjuan.gov.ar/prensa/archivo/000426.html # http://www.sanjuan.gov.ar/prensa/archivo/000441.html # From Alex Krivenyshev (2008-01-17): # Here are articles that Argentina Province San Luis is planning to end DST # as earlier as upcoming Monday January 21, 2008 or February 2008: # # Provincia argentina retrasa reloj y marca diferencia con resto del país # (Argentine Province delayed clock and mark difference with the rest of the # country) # http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel # # Es inminente que en San Luis atrasen una hora los relojes # (It is imminent in San Luis clocks one hour delay) # https://www.lagaceta.com.ar/nota/253414/Economia/Es-inminente-que-en-San-Luis-atrasen-una-hora-los-relojes.html # http://www.worldtimezone.com/dst_news/dst_news_argentina02.html # From Jesper Nørgaard Welen (2008-01-18): # The page of the San Luis provincial government # http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812 # confirms what Alex Krivenyshev has earlier sent to the tz # emailing list about that San Luis plans to return to standard # time much earlier than the rest of the country. It also # confirms that upon request the provinces San Juan and Mendoza # refused to follow San Luis in this change. # # The change is supposed to take place Monday the 21st at 0:00 # hours. As far as I understand it if this goes ahead, we need # a new timezone for San Luis (although there are also documented # independent changes in the southamerica file of San Luis in # 1990 and 1991 which has not been confirmed). # From Jesper Nørgaard Welen (2008-01-25): # Unfortunately the below page has become defunct, about the San Luis # time change. Perhaps because it now is part of a group of pages "Most # important pages of 2008." # # You can use # http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834 # instead it seems. Or use "Buscador" from the main page of the San Luis # government, and fill in "huso" and click OK, and you will get 3 pages # from which the first one is identical to the above. # From Mariano Absatz (2008-01-28): # I can confirm that the Province of San Luis (and so far only that # province) decided to go back to UTC-3 effective midnight Jan 20th 2008 # (that is, Monday 21st at 0:00 is the time the clocks were delayed back # 1 hour), and they intend to keep UTC-3 as their timezone all year round # (that is, unless they change their mind any minute now). # # So we'll have to add yet another city to 'southamerica' (I think San # Luis city is the mos populated city in the Province, so it'd be # America/Argentina/San_Luis... of course I can't remember if San Luis's # history of particular changes goes along with Mendoza or San Juan :-( # (I only remember not being able to collect hard facts about San Luis # back in 2004, when these provinces changed to UTC-4 for a few days, I # mailed them personally and never got an answer). # From Paul Eggert (2014-08-12): # Unless otherwise specified, data entries are from Shanks & Pottenger through # 1992, from the IATA otherwise. As noted below, Shanks & Pottenger say that # America/Cordoba split into 6 subregions during 1991/1992, one of which # was America/San_Luis, but we haven't verified this yet so for now we'll # keep America/Cordoba a single region rather than splitting it into the # other 5 subregions. # From Mariano Absatz (2009-03-13): # Yesterday (with our usual 2-day notice) the Province of San Luis # decided that next Sunday instead of "staying" @@utc-03:00 they will go # to utc-04:00 until the second Saturday in October... # # The press release is at # http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102 # (I couldn't find the decree, but www.sanluis.gov.ar # is the official page for the Province Government.) # # There's also a note in only one of the major national papers ... # http://www.lanacion.com.ar/nota.asp?nota_id=1107912 # # The press release says [quick and dirty translation]: # ... announced that next Sunday, at 00:00, Puntanos (the San Luis # inhabitants) will have to turn back one hour their clocks # # Since then, San Luis will establish its own Province timezone. Thus, # during 2009, this timezone change will run from 00:00 the third Sunday # in March until 24:00 of the second Saturday in October. # From Mariano Absatz (2009-10-16): # ...the Province of San Luis is a case in itself. # # The Law at # http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276 # is ambiguous because establishes a calendar from the 2nd Sunday in # October at 0:00 thru the 2nd Saturday in March at 24:00 and the # complement of that starting on the 2nd Sunday of March at 0:00 and # ending on the 2nd Saturday of March at 24:00. # # This clearly breaks every time the 1st of March or October is a Sunday. # # IMHO, the "spirit of the Law" is to make the changes at 0:00 on the 2nd # Sunday of October and March. # # The problem is that the changes in the rest of the Provinces that did # change in 2007/2008, were made according to the Federal Law and Decrees # that did so on the 3rd Sunday of October and March. # # In fact, San Luis actually switched from UTC-4 to UTC-3 last Sunday # (October 11th) at 0:00. # # So I guess a new set of rules, besides "Arg", must be made and the last # America/Argentina/San_Luis entries should change to use these... # ... # From Alexander Krivenyshev (2010-04-09): # According to news reports from El Diario de la República Province San # Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time # after April 11, 2010 - will continue to have same time as rest of # Argentina (UTC-3) (no DST). # # Confirmaron la prórroga del huso horario de verano (Spanish) # http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9 # or (some English translation): # http://www.worldtimezone.com/dst_news/dst_news_argentina08.html # From Mariano Absatz (2010-04-12): # yes...I can confirm this...and given that San Luis keeps calling # UTC-03:00 "summer time", we should't just let San Luis go back to "Arg" # rules...San Luis is still using "Western ARgentina Time" and it got # stuck on Summer daylight savings time even though the summer is over. # From Paul Eggert (2018-01-23): # Perhaps San Luis operates on the legal fiction that it is at -04 # with perpetual daylight saving time, but ordinary usage typically seems to # just say it's at -03; see, for example, # https://es.wikipedia.org/wiki/Hora_oficial_argentina # We've documented similar situations as being plain changes to # standard time, so let's do that here too. This does not change UTC # offsets, only tm_isdst and the time zone abbreviations. One minor # plus is that this silences a zic complaint that there's no POSIX TZ # setting for timestamps past 2038. # Zone NAME STDOFF RULES FORMAT [UNTIL] # # Buenos Aires (BA), Capital Federal (CF), Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 #STDOFF -4:16:48.25 -4:16:48 - CMT 1920 May # Córdoba Mean Time -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z # # Córdoba (CB), Santa Fe (SF), Entre Ríos (ER), Corrientes (CN), Misiones (MN), # Chaco (CC), Formosa (FM), Santiago del Estero (SE) # # Shanks & Pottenger also make the following claims, which we haven't verified: # - Formosa switched to -3:00 on 1991-01-07. # - Misiones switched to -3:00 on 1990-12-29. # - Chaco switched to -3:00 on 1991-01-04. # - Santiago del Estero switched to -4:00 on 1991-04-01, # then to -3:00 on 1991-04-26. # #STDOFF -4:16:48.25 Zone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z # # Salta (SA), La Pampa (LP), Neuquén (NQ), Rio Negro (RN) Zone America/Argentina/Salta -4:21:40 - LMT 1894 Oct 31 #STDOFF -4:16:48.25 -4:16:48 - CMT 1920 May -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z 2008 Oct 18 -3:00 - %z # # Tucumán (TM) Zone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31 #STDOFF -4:16:48.25 -4:16:48 - CMT 1920 May -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 13 -3:00 Arg %z # # La Rioja (LR) Zone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31 #STDOFF -4:16:48.25 -4:16:48 - CMT 1920 May -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 1 -4:00 - %z 1991 May 7 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z # # San Juan (SJ) Zone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31 #STDOFF -4:16:48.25 -4:16:48 - CMT 1920 May -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 1 -4:00 - %z 1991 May 7 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 May 31 -4:00 - %z 2004 Jul 25 -3:00 Arg %z 2008 Oct 18 -3:00 - %z # # Jujuy (JY) Zone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31 #STDOFF -4:16:48.25 -4:16:48 - CMT 1920 May -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1990 Mar 4 -4:00 - %z 1990 Oct 28 -4:00 1:00 %z 1991 Mar 17 -4:00 - %z 1991 Oct 6 -3:00 1:00 %z 1992 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z 2008 Oct 18 -3:00 - %z # # Catamarca (CT), Chubut (CH) Zone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31 #STDOFF -4:16:48.25 -4:16:48 - CMT 1920 May -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z # # Mendoza (MZ) Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31 #STDOFF -4:16:48.25 -4:16:48 - CMT 1920 May -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1990 Mar 4 -4:00 - %z 1990 Oct 15 -4:00 1:00 %z 1991 Mar 1 -4:00 - %z 1991 Oct 15 -4:00 1:00 %z 1992 Mar 1 -4:00 - %z 1992 Oct 18 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 May 23 -4:00 - %z 2004 Sep 26 -3:00 Arg %z 2008 Oct 18 -3:00 - %z # # San Luis (SL) Rule SanLuis 2008 2009 - Mar Sun>=8 0:00 0 - Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 - Zone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31 #STDOFF -4:16:48.25 -4:16:48 - CMT 1920 May -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1990 -3:00 1:00 %z 1990 Mar 14 -4:00 - %z 1990 Oct 15 -4:00 1:00 %z 1991 Mar 1 -4:00 - %z 1991 Jun 1 -3:00 - %z 1999 Oct 3 -4:00 1:00 %z 2000 Mar 3 -3:00 - %z 2004 May 31 -4:00 - %z 2004 Jul 25 -3:00 Arg %z 2008 Jan 21 -4:00 SanLuis %z 2009 Oct 11 -3:00 - %z # # Santa Cruz (SC) Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 #STDOFF -4:16:48.25 -4:16:48 - CMT 1920 May -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z # # Tierra del Fuego, Antártida e Islas del Atlántico Sur (TF) Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31 #STDOFF -4:16:48.25 -4:16:48 - CMT 1920 May -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 May 30 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z # Aruba # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad -4:30 - -0430 1965 -4:00 - AST # Bolivia # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/La_Paz -4:32:36 - LMT 1890 -4:32:36 - CMT 1931 Oct 15 # Calamarca MT -4:32:36 1:00 BST 1932 Mar 21 # Bolivia ST -4:00 - %z # Brazil # From Paul Eggert (1993-11-18): # The mayor of Rio recently attempted to change the time zone rules # just in his city, in order to leave more summer time for the tourist trade. # The rule change lasted only part of the day; # the federal government refused to follow the city's rules, and business # was in a chaos, so the mayor backed down that afternoon. # From IATA SSIM (1996-02): # _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS), # Santa Catarina (SC), Paraná (PR), São Paulo (SP), Rio de Janeiro (RJ), # Espírito Santo (ES), Minas Gerais (MG), Bahia (BA), Goiás (GO), # Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL]. # [The last three states are new to this issue of the IATA SSIM.] # From Gwillim Law (1996-10-07): # Geography, history (Tocantins was part of Goiás until 1989), and other # sources of time zone information lead me to believe that AL, SE, and TO were # always in BR1, and so the only change was whether or not they observed DST.... # The earliest issue of the SSIM I have is 2/91. Each issue from then until # 9/95 says that DST is observed only in the ten states I quoted from 9/95, # along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2 # (UTC-4).... The other two time zones given for Brazil are BR3, which is # UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is # UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's # become part of the state of Pernambuco). The boundary between BR1 and BR2 # has never been clearly stated. They've simply been called East and West. # However, some conclusions can be drawn from another IATA manual: the Airline # Coding Directory, which lists close to 400 airports in Brazil. For each # airport it gives a time zone which is coded to the SSIM. From that # information, I'm led to conclude that the states of Amapá (AP), Ceará (CE), # Maranhão (MA), Paraíba (PR), Pernambuco (PE), Piauí (PI), and Rio Grande do # Norte (RN), and the eastern part of Pará (PA) are all in BR1 without DST. # From Marcos Tadeu (1998-09-27): # Brazilian official page # From Jesper Nørgaard (2000-11-03): # [For an official list of which regions in Brazil use which time zones, see:] # http://pcdsh01.on.br/Fusbr.htm # http://pcdsh01.on.br/Fusbrhv.htm # From Celso Doria via David Madeo (2002-10-09): # The reason for the delay this year has to do with elections in Brazil. # # Unlike in the United States, elections in Brazil are 100% computerized and # the results are known almost immediately. Yesterday, it was the first # round of the elections when 115 million Brazilians voted for President, # Governor, Senators, Federal Deputies, and State Deputies. Nobody is # counting (or re-counting) votes anymore and we know there will be a second # round for the Presidency and also for some Governors. The 2nd round will # take place on October 27th. # # The reason why the DST will only begin November 3rd is that the thousands # of electoral machines used cannot have their time changed, and since the # Constitution says the elections must begin at 8:00 AM and end at 5:00 PM, # the Government decided to postpone DST, instead of changing the Constitution # (maybe, for the next elections, it will be possible to change the clock)... # From Rodrigo Severo (2004-10-04): # It's just the biannual change made necessary by the much hyped, supposedly # modern Brazilian ... voting machines which, apparently, can't deal # with a time change between the first and the second rounds of the elections. # From Steffen Thorsen (2007-09-20): # Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00: # http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975 # From Paul Schulze (2008-06-24): # ...by law number 11.662 of April 24, 2008 (published in the "Diario # Oficial da União"...) in Brazil there are changes in the timezones, # effective today (00:00am at June 24, 2008) as follows: # # a) The timezone UTC+5 is extinguished, with all the Acre state and the # part of the Amazonas state that had this timezone now being put to the # timezone UTC+4 # b) The whole Pará state now is put at timezone UTC+3, instead of just # part of it, as was before. # # This change follows a proposal of senator Tiao Viana of Acre state, that # proposed it due to concerns about open television channels displaying # programs inappropriate to youths in the states that had the timezone # UTC+5 too early in the night. In the occasion, some more corrections # were proposed, trying to unify the timezones of any given state. This # change modifies timezone rules defined in decree 2.784 of 18 June, # 1913. # From Rodrigo Severo (2008-06-24): # Just correcting the URL: # https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008 # # As a result of the above Decree I believe the America/Rio_Branco # timezone shall be modified from UTC-5 to UTC-4 and a new timezone shall # be created to represent the...west side of the Pará State. I # suggest this new timezone be called Santarem as the most # important/populated city in the affected area. # # This new timezone would be the same as the Rio_Branco timezone up to # the 2008/06/24 change which would be to UTC-3 instead of UTC-4. # From Alex Krivenyshev (2008-06-24): # This is a quick reference page for New and Old Brazil Time Zones map. # http://www.worldtimezone.com/brazil-time-new-old.php # # - 4 time zones replaced by 3 time zones - eliminating time zone UTC-05 # (state Acre and the part of the Amazonas will be UTC/GMT-04) - western # part of Par state is moving to one timezone UTC-03 (from UTC-04). # From Paul Eggert (2002-10-10): # The official decrees referenced below are mostly taken from # Decretos sobre o Horário de Verão no Brasil. # http://pcdsh01.on.br/DecHV.html # From Steffen Thorsen (2008-08-29): # As announced by the government and many newspapers in Brazil late # yesterday, Brazil will start DST on 2008-10-19 (need to change rule) and # it will end on 2009-02-15 (current rule for Brazil is fine). Based on # past years experience with the elections, there was a good chance that # the start was postponed to November, but it did not happen this year. # # It has not yet been posted to http://pcdsh01.on.br/DecHV.html # # An official page about it: # http://www.mme.gov.br/site/news/detail.do?newsId=16722 # Note that this link does not always work directly, but must be accessed # by going to # http://www.mme.gov.br/first # # One example link that works directly: # http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54 # (Portuguese) # # We have a written a short article about it as well: # https://www.timeanddate.com/news/time/brazil-dst-2008-2009.html # # From Alexander Krivenyshev (2011-10-04): # State Bahia will return to Daylight savings time this year after 8 years off. # The announcement was made by Governor Jaques Wagner in an interview to a # television station in Salvador. # In Portuguese: # http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html # https://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html # From Guilherme Bernardes Rodrigues (2011-10-07): # There is news in the media, however there is still no decree about it. # I just send a e-mail to Zulmira Brandao at http://pcdsh01.on.br/ the # official agency about time in Brazil, and she confirmed that the old rule is # still in force. # From Guilherme Bernardes Rodrigues (2011-10-14) # It's official, the President signed a decree that includes Bahia in summer # time. # [ and in a second message (same day): ] # I found the decree. # # DECRETO No. 7.584, DE 13 DE OUTUBRO DE 2011 # Link : # http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6 # From Kelley Cook (2012-10-16): # The governor of state of Bahia in Brazil announced on Thursday that # due to public pressure, he is reversing the DST policy they implemented # last year and will not be going to Summer Time on October 21st.... # http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-horario-de-verao-na-bahia # From Rodrigo Severo (2012-10-16): # Tocantins state will have DST. # https://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html # From Steffen Thorsen (2013-09-20): # Tocantins in Brazil is very likely not to observe DST from October.... # http://conexaoto.com.br/2013/09/18/ministerio-confirma-que-tocantins-esta-fora-do-horario-de-verao-em-2013-mas-falta-publicacao-de-decreto # We will keep this article updated when this is confirmed: # https://www.timeanddate.com/news/time/brazil-starts-dst-2013.html # From Steffen Thorsen (2013-10-17): # https://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html # Senator Jorge Viana announced that Acre will change time zone on November 10. # He did not specify the time of the change, nor if western parts of Amazonas # will change as well. # # From Paul Eggert (2013-10-17): # For now, assume western Amazonas will change as well. # Rule NAME FROM TO - IN ON AT SAVE LETTER/S # Decree 20,466 (1931-10-01) # Decree 21,896 (1932-01-10) Rule Brazil 1931 only - Oct 3 11:00 1:00 - Rule Brazil 1932 1933 - Apr 1 0:00 0 - Rule Brazil 1932 only - Oct 3 0:00 1:00 - # Decree 23,195 (1933-10-10) # revoked DST. # Decree 27,496 (1949-11-24) # Decree 27,998 (1950-04-13) Rule Brazil 1949 1952 - Dec 1 0:00 1:00 - Rule Brazil 1950 only - Apr 16 1:00 0 - Rule Brazil 1951 1952 - Apr 1 0:00 0 - # Decree 32,308 (1953-02-24) Rule Brazil 1953 only - Mar 1 0:00 0 - # Decree 34,724 (1953-11-30) # revoked DST. # Decree 52,700 (1963-10-18) # established DST from 1963-10-23 00:00 to 1964-02-29 00:00 # in SP, RJ, GB, MG, ES, due to the prolongation of the drought. # Decree 53,071 (1963-12-03) # extended the above decree to all of the national territory on 12-09. Rule Brazil 1963 only - Dec 9 0:00 1:00 - # Decree 53,604 (1964-02-25) # extended summer time by one day to 1964-03-01 00:00 (start of school). Rule Brazil 1964 only - Mar 1 0:00 0 - # Decree 55,639 (1965-01-27) Rule Brazil 1965 only - Jan 31 0:00 1:00 - Rule Brazil 1965 only - Mar 31 0:00 0 - # Decree 57,303 (1965-11-22) Rule Brazil 1965 only - Dec 1 0:00 1:00 - # Decree 57,843 (1966-02-18) Rule Brazil 1966 1968 - Mar 1 0:00 0 - Rule Brazil 1966 1967 - Nov 1 0:00 1:00 - # Decree 63,429 (1968-10-15) # revoked DST. # Decree 91,698 (1985-09-27) Rule Brazil 1985 only - Nov 2 0:00 1:00 - # Decree 92,310 (1986-01-21) # Decree 92,463 (1986-03-13) Rule Brazil 1986 only - Mar 15 0:00 0 - # Decree 93,316 (1986-10-01) Rule Brazil 1986 only - Oct 25 0:00 1:00 - Rule Brazil 1987 only - Feb 14 0:00 0 - # Decree 94,922 (1987-09-22) Rule Brazil 1987 only - Oct 25 0:00 1:00 - Rule Brazil 1988 only - Feb 7 0:00 0 - # Decree 96,676 (1988-09-12) # except for the states of AC, AM, PA, RR, RO, and AP (then a territory) Rule Brazil 1988 only - Oct 16 0:00 1:00 - Rule Brazil 1989 only - Jan 29 0:00 0 - # Decree 98,077 (1989-08-21) # with the same exceptions Rule Brazil 1989 only - Oct 15 0:00 1:00 - Rule Brazil 1990 only - Feb 11 0:00 0 - # Decree 99,530 (1990-09-17) # adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF. # Decree 99,629 (1990-10-19) adds BA, MT. Rule Brazil 1990 only - Oct 21 0:00 1:00 - Rule Brazil 1991 only - Feb 17 0:00 0 - # Unnumbered decree (1991-09-25) # adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF. Rule Brazil 1991 only - Oct 20 0:00 1:00 - Rule Brazil 1992 only - Feb 9 0:00 0 - # Unnumbered decree (1992-10-16) # adopted by same states. Rule Brazil 1992 only - Oct 25 0:00 1:00 - Rule Brazil 1993 only - Jan 31 0:00 0 - # Decree 942 (1993-09-28) # adopted by same states, plus AM. # Decree 1,252 (1994-09-22; # web page corrected 2004-01-07) adopted by same states, minus AM. # Decree 1,636 (1995-09-14) # adopted by same states, plus MT and TO. # Decree 1,674 (1995-10-13) # adds AL, SE. Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 - Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 - Rule Brazil 1996 only - Feb 11 0:00 0 - # Decree 2,000 (1996-09-04) # adopted by same states, minus AL, SE. Rule Brazil 1996 only - Oct 6 0:00 1:00 - Rule Brazil 1997 only - Feb 16 0:00 0 - # From Daniel C. Sobral (1998-02-12): # In 1997, the DS began on October 6. The stated reason was that # because international television networks ignored Brazil's policy on DS, # they bought the wrong times on satellite for coverage of Pope's visit. # This year, the ending date of DS was postponed to March 1 # to help dealing with the shortages of electric power. # # Decree 2,317 (1997-09-04), adopted by same states. Rule Brazil 1997 only - Oct 6 0:00 1:00 - # Decree 2,495 # (1998-02-10) Rule Brazil 1998 only - Mar 1 0:00 0 - # Decree 2,780 (1998-09-11) # adopted by the same states as before. Rule Brazil 1998 only - Oct 11 0:00 1:00 - Rule Brazil 1999 only - Feb 21 0:00 0 - # Decree 3,150 # (1999-08-23) adopted by same states. # Decree 3,188 (1999-09-30) # adds SE, AL, PB, PE, RN, CE, PI, MA and RR. Rule Brazil 1999 only - Oct 3 0:00 1:00 - Rule Brazil 2000 only - Feb 27 0:00 0 - # Decree 3,592 (2000-09-06) # adopted by the same states as before. # Decree 3,630 (2000-10-13) # repeals DST in PE and RR, effective 2000-10-15 00:00. # Decree 3,632 (2000-10-17) # repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00. # Decree 3,916 # (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE. Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 - Rule Brazil 2001 2006 - Feb Sun>=15 0:00 0 - # Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE. # 4,399 Rule Brazil 2002 only - Nov 3 0:00 1:00 - # Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO. # 4,844 Rule Brazil 2003 only - Oct 19 0:00 1:00 - # Decree 5,223 (2004-10-01) reestablishes DST in MT. # 5,223 Rule Brazil 2004 only - Nov 2 0:00 1:00 - # Decree 5,539 (2005-09-19), # adopted by the same states as before. Rule Brazil 2005 only - Oct 16 0:00 1:00 - # Decree 5,920 (2006-10-03), # adopted by the same states as before. Rule Brazil 2006 only - Nov 5 0:00 1:00 - Rule Brazil 2007 only - Feb 25 0:00 0 - # Decree 6,212 (2007-09-26), # adopted by the same states as before. Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 - # From Frederico A. C. Neves (2008-09-10): # According to this decree # http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm # [t]he DST period in Brazil now on will be from the 3rd Oct Sunday to the # 3rd Feb Sunday. There is an exception on the return date when this is # the Carnival Sunday then the return date will be the next Sunday... Rule Brazil 2008 2017 - Oct Sun>=15 0:00 1:00 - Rule Brazil 2008 2011 - Feb Sun>=15 0:00 0 - # Decree 7,584 (2011-10-13) # added Bahia. Rule Brazil 2012 only - Feb Sun>=22 0:00 0 - # Decree 7,826 (2012-10-15) # removed Bahia and added Tocantins. # Decree 8,112 (2013-09-30) # removed Tocantins. Rule Brazil 2013 2014 - Feb Sun>=15 0:00 0 - Rule Brazil 2015 only - Feb Sun>=22 0:00 0 - Rule Brazil 2016 2019 - Feb Sun>=15 0:00 0 - # From Steffen Thorsen (2017-12-18): # According to many media sources, next year's DST start in Brazil will move to # the first Sunday of November # ... https://www.timeanddate.com/news/time/brazil-delays-dst-2018.html # From Steffen Thorsen (2017-12-20): # http://www.planalto.gov.br/ccivil_03/_ato2015-2018/2017/decreto/D9242.htm # From Fábio Gomes (2018-10-04): # The Brazilian president just announced a new change on this year DST. # It was scheduled to start on November 4th and it was changed to November 18th. # From Rodrigo Brüning Wessler (2018-10-15): # The Brazilian government just announced that the change in DST was # canceled.... Maybe the president Michel Temer also woke up one hour # earlier today. :) Rule Brazil 2018 only - Nov Sun>=1 0:00 1:00 - # The last ruleset listed above says that the following states observed DST: # DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP. # # From Steffen Thorsen (2019-04-05): # According to multiple sources the Brazilian president wants to get rid of DST. # https://gmconline.com.br/noticias/politica/bolsonaro-horario-de-verao-deve-acabar-este-ano # https://g1.globo.com/economia/noticia/2019/04/05/governo-anuncia-fim-do-horario-de-verao.ghtml # From Marcus Diniz (2019-04-25): # Brazil no longer has DST changes - decree signed today # https://g1.globo.com/politica/noticia/2019/04/25/bolsonaro-assina-decreto-que-acaba-com-o-horario-de-verao.ghtml # From Daniel Soares de Oliveira (2019-04-26): # http://www.planalto.gov.br/ccivil_03/_Ato2019-2022/2019/Decreto/D9772.htm # Zone NAME STDOFF RULES FORMAT [UNTIL] # # Fernando de Noronha (administratively part of PE) Zone America/Noronha -2:09:40 - LMT 1914 -2:00 Brazil %z 1990 Sep 17 -2:00 - %z 1999 Sep 30 -2:00 Brazil %z 2000 Oct 15 -2:00 - %z 2001 Sep 13 -2:00 Brazil %z 2002 Oct 1 -2:00 - %z # Other Atlantic islands have no permanent settlement. # These include Trindade and Martim Vaz (administratively part of ES), # Rocas Atoll (RN), and the St Peter and St Paul Archipelago (PE). # Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01; # it also included the Penedos. # # Amapá (AP), east Pará (PA) # East Pará includes Belém, Marabá, Serra Norte, and São Félix do Xingu. # The division between east and west Pará is the river Xingu. # In the north a very small part from the river Javary (now Jari I guess, # the border with Amapá) to the Amazon, then to the Xingu. Zone America/Belem -3:13:56 - LMT 1914 -3:00 Brazil %z 1988 Sep 12 -3:00 - %z # # west Pará (PA) # West Pará includes Altamira, Óbidos, Prainha, Oriximiná, and Santarém. Zone America/Santarem -3:38:48 - LMT 1914 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z 2008 Jun 24 0:00 -3:00 - %z # # Maranhão (MA), Piauí (PI), Ceará (CE), Rio Grande do Norte (RN), # Paraíba (PB) Zone America/Fortaleza -2:34:00 - LMT 1914 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1999 Sep 30 -3:00 Brazil %z 2000 Oct 22 -3:00 - %z 2001 Sep 13 -3:00 Brazil %z 2002 Oct 1 -3:00 - %z # # Pernambuco (PE) (except Atlantic islands) Zone America/Recife -2:19:36 - LMT 1914 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1999 Sep 30 -3:00 Brazil %z 2000 Oct 15 -3:00 - %z 2001 Sep 13 -3:00 Brazil %z 2002 Oct 1 -3:00 - %z # # Tocantins (TO) Zone America/Araguaina -3:12:48 - LMT 1914 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1995 Sep 14 -3:00 Brazil %z 2003 Sep 24 -3:00 - %z 2012 Oct 21 -3:00 Brazil %z 2013 Sep -3:00 - %z # # Alagoas (AL), Sergipe (SE) Zone America/Maceio -2:22:52 - LMT 1914 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1995 Oct 13 -3:00 Brazil %z 1996 Sep 4 -3:00 - %z 1999 Sep 30 -3:00 Brazil %z 2000 Oct 22 -3:00 - %z 2001 Sep 13 -3:00 Brazil %z 2002 Oct 1 -3:00 - %z # # Bahia (BA) # There are too many Salvadors elsewhere, so use America/Bahia instead # of America/Salvador. Zone America/Bahia -2:34:04 - LMT 1914 -3:00 Brazil %z 2003 Sep 24 -3:00 - %z 2011 Oct 16 -3:00 Brazil %z 2012 Oct 21 -3:00 - %z # # Goiás (GO), Distrito Federal (DF), Minas Gerais (MG), # Espírito Santo (ES), Rio de Janeiro (RJ), São Paulo (SP), Paraná (PR), # Santa Catarina (SC), Rio Grande do Sul (RS) Zone America/Sao_Paulo -3:06:28 - LMT 1914 -3:00 Brazil %z 1963 Oct 23 0:00 -3:00 1:00 %z 1964 -3:00 Brazil %z # # Mato Grosso do Sul (MS) Zone America/Campo_Grande -3:38:28 - LMT 1914 -4:00 Brazil %z # # Mato Grosso (MT) Zone America/Cuiaba -3:44:20 - LMT 1914 -4:00 Brazil %z 2003 Sep 24 -4:00 - %z 2004 Oct 1 -4:00 Brazil %z # # Rondônia (RO) Zone America/Porto_Velho -4:15:36 - LMT 1914 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z # # Roraima (RR) Zone America/Boa_Vista -4:02:40 - LMT 1914 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z 1999 Sep 30 -4:00 Brazil %z 2000 Oct 15 -4:00 - %z # # east Amazonas (AM): Boca do Acre, Jutaí, Manaus, Floriano Peixoto # The great circle line from Tabatinga to Porto Acre divides # east from west Amazonas. Zone America/Manaus -4:00:04 - LMT 1914 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z 1993 Sep 28 -4:00 Brazil %z 1994 Sep 22 -4:00 - %z # # west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant, # Eirunepé, Envira, Ipixuna Zone America/Eirunepe -4:39:28 - LMT 1914 -5:00 Brazil %z 1988 Sep 12 -5:00 - %z 1993 Sep 28 -5:00 Brazil %z 1994 Sep 22 -5:00 - %z 2008 Jun 24 0:00 -4:00 - %z 2013 Nov 10 -5:00 - %z # # Acre (AC) Zone America/Rio_Branco -4:31:12 - LMT 1914 -5:00 Brazil %z 1988 Sep 12 -5:00 - %z 2008 Jun 24 0:00 -4:00 - %z 2013 Nov 10 -5:00 - %z # Chile # From Paul Eggert (2022-03-15): # Shanks & Pottenger says America/Santiago introduced standard time in # 1890 and rounds its UT offset to 70W40; guess that in practice this # was the same offset as in 1916-1919. It also says Pacific/Easter # standardized on 109W22 in 1890; assume this didn't change the clocks. # # Dates for America/Santiago from 1910 to 2004 are primarily from # the following source, cited by Oscar van Vlijmen (2006-10-08): # [1] Chile Law # http://www.webexhibits.org/daylightsaving/chile.html # This contains a copy of this official table: # Cambios en la hora oficial de Chile desde 1900 (retrieved 2008-03-30) # https://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm # [1] needs several corrections, though. # # The first set of corrections is from: # [2] History of the Official Time of Chile # http://www.horaoficial.cl/ing/horaof_ing.html (retrieved 2012-03-06). See: # https://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html # This is an English translation of: # Historia de la hora oficial de Chile (retrieved 2012-10-24). See: # https://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm # A fancier Spanish version (requiring mouse-clicking) is at: # http://www.horaoficial.cl/historia_hora.php # Conflicts between [1] and [2] were resolved as follows: # # - [1] says the 1910 transition was Jan 1, [2] says Jan 10 and cites # Boletín No. 1, Aviso No. 1 (1910). Go with [2]. # # - [1] says SMT was -4:42:45, [2] says Chile's official time from # 1916 to 1919 was -4:42:46.3, the meridian of Chile's National # Astronomical Observatory (OAN), then located in what is now # Quinta Normal in Santiago. Go with [1], as this matches the meridian # referred to by the relevant Chilean laws to this day. # # - [1] says the 1918 transition was Sep 1, [2] says Sep 10 and cites # Boletín No. 22, Aviso No. 129/1918 (1918-08-23). Go with [2]. # # - [1] does not give times for transitions; assume they occur # at midnight mainland time, the current common practice. However, # go with [2]'s specification of 23:00 for the 1947-05-21 transition. # # Another correction to [1] is from Jesper Nørgaard Welen, who # wrote (2006-10-08), "I think that there are some obvious mistakes in # the suggested link from Oscar van Vlijmen,... for instance entry 66 # says that GMT-4 ended 1990-09-12 while entry 67 only begins GMT-3 at # 1990-09-15 (they should have been 1990-09-15 and 1990-09-16 # respectively), but anyhow it clears up some doubts too." # # Data for Pacific/Easter from 1910 through 1967 come from Shanks & # Pottenger. After that, for lack of better info assume # Pacific/Easter is always two hours behind America/Santiago; # this is known to work for DST transitions starting in 2008 and # may well be true for earlier transitions. # From Tim Parenti (2022-07-06): # For a brief period of roughly six weeks in 1946, DST was only observed on an # emergency basis in specific regions of central Chile; namely, "the national # territory between the provinces of Coquimbo and Concepción, inclusive". # This was enacted by Decree 3,891, dated 1946-07-13, and took effect # 1946-07-14 24:00, advancing these central regions to -03. # https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19460715/#page/1 # The decree contemplated "[t]hat this advancement of the Official Time, even # though it has been proposed for the cities of Santiago and Valparaíso only, # must be agreed with that of other cities, due to the connection of various # activities that require it, such as, for example, the operation of rail # services". It was originally set to expire after 30 days but was extended # through 1946-08-31 by Decree 4,506, dated 1946-08-13. # https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19460814/#page/1 # # Law Number 8,522, promulgated 1946-08-27, reunified Chilean clocks at their # new "Summer Time" of -04, reckoned as that of "the meridian of the # Astronomical Observatory of Lo Espejo, advanced by 42 minutes and 45 # seconds". Although this law specified the new Summer Time to start on 1 # September each year, a special "transitional article" started it a few days # early, as soon as the law took effect. As the law was to take force "from # the date of its publication in the 'Diario Oficial', which happened the # following day, presume the change took place in Santiago and its environs # from 24:00 -03 to 23:00 -04 on Wednesday 1946-08-28. Although this was a # no-op for wall clocks in the north and south of the country, put their formal # start to DST an hour later when they reached 24:00 -04. # https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19460828/#page/1 # After a brief "Winter Time" stint at -05 beginning 1947-04-01, Law Number # 8,777, promulgated 1947-05-17, established year-round -04 "from 23:00 on the # second day after it is published in the 'Diario Oficial'." It was published # on Monday 1947-05-19 and so took effect from Wednesday 1947-05-21 23:00. # https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19470519/#page/1 # From Eduardo Krell (1995-10-19): # The law says to switch to DST at midnight [24:00] on the second SATURDAY # of October.... The law is the same for March and October. # (1998-09-29): # Because of the drought this year, the government decided to go into # DST earlier (saturday 9/26 at 24:00). This is a one-time change only ... # (unless there's another dry season next year, I guess). # From Julio I. Pacheco Troncoso (1999-03-18): # Because of the same drought, the government decided to end DST later, # on April 3, (one-time change). # From Germán Poo-Caamaño (2008-03-03): # Due to drought, Chile extends Daylight Time in three weeks. This # is one-time change (Saturday 3/29 at 24:00 for America/Santiago # and Saturday 3/29 at 22:00 for Pacific/Easter) # The Supreme Decree is located at # http://www.shoa.cl/servicios/supremo316.pdf # # From José Miguel Garrido (2008-03-05): # http://www.shoa.cl/noticias/2008/04hora/hora.htm # From Angel Chiang (2010-03-04): # Subject: DST in Chile exceptionally extended to 3 April due to earthquake # http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098 # # From Arthur David Olson (2010-03-06): # Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch. # From Glenn Eychaner (2011-03-28): # http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E} # In English: # Chile's clocks will go back an hour this year on the 7th of May instead # of this Saturday. They will go forward again the 3rd Saturday in # August, not in October as they have since 1968. # From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23): # As stated in the website of the Chilean Energy Ministry # http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html # The Chilean Government has decided to postpone the entrance into winter time # (to leave DST) from March 11 2012 to April 28th 2012.... # Quote from the website communication: # # 6. For the year 2012, the dates of entry into winter time will be as follows: # a. Saturday April 28, 2012, clocks should go back 60 minutes; that is, at # 23:59:59, instead of passing to 0:00, the time should be adjusted to be 23:00 # of the same day. # b. Saturday, September 1, 2012, clocks should go forward 60 minutes; that is, # at 23:59:59, instead of passing to 0:00, the time should be adjusted to be # 01:00 on September 2. # From Steffen Thorsen (2013-02-15): # According to several news sources, Chile has extended DST this year, # they will end DST later and start DST earlier than planned. They # hope to save energy. The new end date is 2013-04-28 00:00 and new # start date is 2013-09-08 00:00.... # http://www.gob.cl/informa/2013/02/15/gobierno-anuncia-fechas-de-cambio-de-hora-para-el-ano-2013.htm # From José Miguel Garrido (2014-02-19): # Today appeared in the Diario Oficial a decree amending the time change # dates to 2014. # DST End: last Saturday of April 2014 (Sun 27 Apr 2014 03:00 UTC) # DST Start: first Saturday of September 2014 (Sun 07 Sep 2014 04:00 UTC) # From Tim Parenti (2025-03-22): # Decreto 307 of 2014 of the Ministry of the Interior and Public Security, # promulgated 2014-01-30 and published 2014-02-19: # https://www.diariooficial.interior.gob.cl/media/2014/02/19/do-20140219.pdf#page=1 # https://www.bcn.cl/leychile/navegar?idNorma=1059557 # From Eduardo Romero Urra (2015-03-03): # Today has been published officially that Chile will use the DST time # permanently until March 25 of 2017 # From Tim Parenti (2025-03-22): # Decreto 106 of 2015 of the Ministry of the Interior and Public Security, # promulgated 2015-01-27 and published 2015-03-03: # https://www.diariooficial.interior.gob.cl/media/2015/03/03/do-20150303.pdf#page=1 # https://www.bcn.cl/leychile/navegar?idNorma=1075157 # From Juan Correa (2016-03-18): # The decree regarding DST has been published in today's Official Gazette... # It does consider the second Saturday of May and August as the dates # for the transition; and it lists DST dates until 2019, but I think # this scheme will stick. # From Paul Eggert (2016-03-18): # The decree says transitions occur at 24:00; in practice this appears # to mean 24:00 mainland time, not 24:00 local time, so that Easter # Island is always two hours behind the mainland. # From Tim Parenti (2025-03-22): # Decreto 253 of 2016 of the Ministry of the Interior and Public Security, # promulgated 2016-03-16 and published 2016-03-18. # https://www.diariooficial.interior.gob.cl/media/2016/03/18/do-20160318.pdf#page=1 # https://www.bcn.cl/leychile/navegar?idNorma=1088502 # From Juan Correa (2016-12-04): # Magallanes region ... will keep DST (UTC -3) all year round.... # http://www.soychile.cl/Santiago/Sociedad/2016/12/04/433428/Bachelet-firmo-el-decreto-para-establecer-un-horario-unico-para-la-Region-de-Magallanes.aspx # From Tim Parenti (2025-03-22), via Deborah Goldsmith (2017-01-19): # Decreto 1820 of 2016 of the Ministry of the Interior and Public Security, # promulgated 2016-12-02 and published 2017-01-17: # https://www.diariooficial.interior.gob.cl/publicaciones/2017/01/17/41660/01/1169626.pdf # https://www.bcn.cl/leychile/Navegar?idNorma=1099217 # Model this as a change to standard offset effective 2016-12-04. # From Juan Correa (2018-08-13): # As of moments ago, the Ministry of Energy in Chile has announced the new # schema for DST. ... Announcement in video (in Spanish): # https://twitter.com/MinEnergia/status/1029000399129374720 # From Yonathan Dossow (2018-08-13): # The video says "first Saturday of September", we all know it means Sunday at # midnight. # From Tim Parenti (2018-08-13): # Translating the captions on the video at 0:44-0:55, "We want to announce as # Government that from 2019, Winter Time will be increased to 5 months, between # the first Saturday of April and the first Saturday of September." # At 2:08-2:20, "The Magallanes region will maintain its current time, as # decided by the citizens during 2017, but our Government will promote a # regional dialogue table to gather their opinion on this matter." # https://twitter.com/MinEnergia/status/1029009354001973248 # "We will keep the new time policy unchanged for at least the next 4 years." # So we extend the new rules on Saturdays at 24:00 mainland time indefinitely. # From Tim Parenti (2025-03-22), via Juan Correa (2019-02-04): # Decreto 1286 of 2018 of the Ministry of the Interior and Public Security, # promulgated 2018-09-21 and published 2018-11-23: # https://www.diariooficial.interior.gob.cl/publicaciones/2018/11/23/42212/01/1498738.pdf # https://www.bcn.cl/leychile/Navegar?idNorma=1125760 # From Juan Correa (2022-04-02): # I found there was a decree published last Thursday that will keep # Magallanes region to UTC -3 "indefinitely". # From Tim Parenti (2025-03-22): # Decreto 143 of 2022 of the Ministry of the Interior and Public Security, # promulgated 2022-03-29 and published 2022-03-31: # https://www.diariooficial.interior.gob.cl/publicaciones/2022/03/31/43217-B/01/2108910.pdf # https://www.bcn.cl/leychile/Navegar?idNorma=1174342 # From Juan Correa (2022-08-09): # the Internal Affairs Ministry (Ministerio del Interior) informed DST # for America/Santiago will start on midnight of September 11th; # and will end on April 1st, 2023. Magallanes region (America/Punta_Arenas) # will keep UTC -3 "indefinitely"... This is because on September 4th # we will have a voting whether to approve a new Constitution. # # From Tim Parenti (2025-03-22), via Eduardo Romero Urra (2022-08-17): # Decreto 224 of 2022 of the Ministry of the Interior and Public Security, # promulgated 2022-07-14 and published 2022-08-13: # https://www.diariooficial.interior.gob.cl/publicaciones/2022/08/13/43327/01/2172567.pdf # https://www.bcn.cl/leychile/navegar?idNorma=1179983 # # From Paul Eggert (2022-08-17): # Although the presidential decree stops at fall 2026, assume that # similar DST rules will continue thereafter. # From Paul Eggert (2025-01-15): # Diario Regional Aysén's Sebastián Martel reports that 94% of Aysén # citizens polled in November favored changing the rules from # -04/-03-with-DST to -03 all year... # https://www.diarioregionalaysen.cl/noticia/actualidad/2024/12/presentan-decision-que-gano-la-votacion-sobre-el-cambio-del-huso-horario-en-aysen # # From Yonathan Dossow (2025-03-20): # [T]oday we have more confirmation of the change. [Aysén] region will keep # UTC-3 all year... # https://www.cnnchile.com/pais/region-de-aysen-mantendra-horario-de-verano-todo-el-ano_20250320/ # https://www.latercera.com/nacional/noticia/tras-consulta-ciudadana-region-de-aysen-mantendra-el-horario-de-verano-durante-todo-el-ano/ # https://x.com/min_interior/status/1902692504270672098 # # From Tim Parenti (2025-03-22), via Eduardo Romero Urra (2025-03-20): # Decreto 93 of 2025 of the Ministry of the Interior and Public Security, # promulgated 2025-03-11 and published 2025-03-20: # https://www.diariooficial.interior.gob.cl/publicaciones/2025/03/20/44104/01/2624263.pdf # https://www.bcn.cl/leychile/Navegar?idNorma=1211955 # Model this as a change to standard offset effective 2025-03-20. # Rule NAME FROM TO - IN ON AT SAVE LETTER/S Rule Chile 1927 1931 - Sep 1 0:00 1:00 - Rule Chile 1928 1932 - Apr 1 0:00 0 - Rule Chile 1968 only - Nov 3 4:00u 1:00 - Rule Chile 1969 only - Mar 30 3:00u 0 - Rule Chile 1969 only - Nov 23 4:00u 1:00 - Rule Chile 1970 only - Mar 29 3:00u 0 - Rule Chile 1971 only - Mar 14 3:00u 0 - Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 - Rule Chile 1972 1986 - Mar Sun>=9 3:00u 0 - Rule Chile 1973 only - Sep 30 4:00u 1:00 - Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 - Rule Chile 1987 only - Apr 12 3:00u 0 - Rule Chile 1988 1990 - Mar Sun>=9 3:00u 0 - Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 - Rule Chile 1990 only - Sep 16 4:00u 1:00 - Rule Chile 1991 1996 - Mar Sun>=9 3:00u 0 - Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 - Rule Chile 1997 only - Mar 30 3:00u 0 - Rule Chile 1998 only - Mar Sun>=9 3:00u 0 - Rule Chile 1998 only - Sep 27 4:00u 1:00 - Rule Chile 1999 only - Apr 4 3:00u 0 - Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 - Rule Chile 2000 2007 - Mar Sun>=9 3:00u 0 - # N.B.: the end of March 29 in Chile is March 30 in Universal time, # which is used below in specifying the transition. Rule Chile 2008 only - Mar 30 3:00u 0 - Rule Chile 2009 only - Mar Sun>=9 3:00u 0 - Rule Chile 2010 only - Apr Sun>=1 3:00u 0 - Rule Chile 2011 only - May Sun>=2 3:00u 0 - Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 - Rule Chile 2012 2014 - Apr Sun>=23 3:00u 0 - Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 - Rule Chile 2016 2018 - May Sun>=9 3:00u 0 - Rule Chile 2016 2018 - Aug Sun>=9 4:00u 1:00 - Rule Chile 2019 max - Apr Sun>=2 3:00u 0 - Rule Chile 2019 2021 - Sep Sun>=2 4:00u 1:00 - Rule Chile 2022 only - Sep Sun>=9 4:00u 1:00 - Rule Chile 2023 max - Sep Sun>=2 4:00u 1:00 - # IATA SSIM anomalies: (1992-02) says 1992-03-14; # (1996-09) says 1998-03-08. Ignore these. # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Santiago -4:42:45 - LMT 1890 -4:42:45 - SMT 1910 Jan 10 # Santiago Mean Time -5:00 - %z 1916 Jul 1 -4:42:45 - SMT 1918 Sep 10 -4:00 - %z 1919 Jul 1 -4:42:45 - SMT 1927 Sep 1 -5:00 Chile %z 1932 Sep 1 -4:00 - %z 1942 Jun 1 -5:00 - %z 1942 Aug 1 -4:00 - %z 1946 Jul 14 24:00 -4:00 1:00 %z 1946 Aug 28 24:00 # central CL -5:00 1:00 %z 1947 Mar 31 24:00 -5:00 - %z 1947 May 21 23:00 -4:00 Chile %z Zone America/Coyhaique -4:48:16 - LMT 1890 -4:42:45 - SMT 1910 Jan 10 -5:00 - %z 1916 Jul 1 -4:42:45 - SMT 1918 Sep 10 -4:00 - %z 1919 Jul 1 -4:42:45 - SMT 1927 Sep 1 -5:00 Chile %z 1932 Sep 1 -4:00 - %z 1942 Jun 1 -5:00 - %z 1942 Aug 1 -4:00 - %z 1946 Aug 28 24:00 -5:00 1:00 %z 1947 Mar 31 24:00 -5:00 - %z 1947 May 21 23:00 -4:00 Chile %z 2025 Mar 20 -3:00 - %z Zone America/Punta_Arenas -4:43:40 - LMT 1890 -4:42:45 - SMT 1910 Jan 10 -5:00 - %z 1916 Jul 1 -4:42:45 - SMT 1918 Sep 10 -4:00 - %z 1919 Jul 1 -4:42:45 - SMT 1927 Sep 1 -5:00 Chile %z 1932 Sep 1 -4:00 - %z 1942 Jun 1 -5:00 - %z 1942 Aug 1 -4:00 - %z 1946 Aug 28 24:00 -5:00 1:00 %z 1947 Mar 31 24:00 -5:00 - %z 1947 May 21 23:00 -4:00 Chile %z 2016 Dec 4 -3:00 - %z Zone Pacific/Easter -7:17:28 - LMT 1890 -7:17:28 - EMT 1932 Sep # Easter Mean Time -7:00 Chile %z 1982 Mar 14 3:00u # Easter Time -6:00 Chile %z # # Salas y Gómez Island is uninhabited. # Other Chilean locations, including Juan Fernández Is, Desventuradas Is, # and Antarctic bases, are like America/Santiago. # Antarctic base using South American rules # (See the file 'antarctica' for more.) # # Palmer, Anvers Island, since 1965 (moved 2 miles in 1968) # # From Ethan Dicks (1996-10-06): # It keeps the same time as Punta Arenas, Chile, because, just like us # and the South Pole, that's the other end of their supply line.... # I verified with someone who was there that since 1980, # Palmer has followed Chile. Prior to that, before the Falklands War, # Palmer used to be supplied from Argentina. # # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone Antarctica/Palmer 0 - -00 1965 -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1982 May -4:00 Chile %z 2016 Dec 4 -3:00 - %z # Colombia # Milne gives 4:56:16.4 for Bogotá time in 1899. He writes, # "A variation of fifteen minutes in the public clocks of Bogota is not rare." # From Alois Treindl (2022-11-10): # End of time change in Colombia 1993 ... should be 6 February 24h ... # DECRETO 267 DE 1993 # https://www.suin-juriscol.gov.co/viewDocument.asp?ruta=Decretos/1061335 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S Rule CO 1992 only - May 3 0:00 1:00 - Rule CO 1993 only - Feb 6 24:00 0 - # Zone NAME STDOFF RULES FORMAT [UNTIL] #STDOFF -4:56:16.4 Zone America/Bogota -4:56:16 - LMT 1884 Mar 13 -4:56:16 - BMT 1914 Nov 23 # Bogotá Mean Time -5:00 CO %z # Malpelo, Providencia, San Andres # no information; probably like America/Bogota # Curaçao # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad -4:30 - -0430 1965 -4:00 - AST Link America/Curacao America/Kralendijk Link America/Curacao America/Lower_Princes # Ecuador # # Milne says the Central and South American Telegraph Company used -5:24:15. # # From Alois Treindl (2016-12-15): # https://www.elcomercio.com/actualidad/hora-sixto-1993.html # ... Whether the law applied also to Galápagos, I do not know. # From Paul Eggert (2016-12-15): # https://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html # This says President Sixto Durán Ballén signed decree No. 285, which # established DST from 1992-11-28 to 1993-02-05; it does not give transition # times. The people called it "hora de Sixto" ("Sixto hour"). The change did # not go over well; a popular song "Qué hora es" by Jaime Guevara had lyrics # that included "Amanecía en mitad de la noche, los guaguas iban a clase sin # sol" ("It was dawning in the middle of the night, the buses went to class # without sun"). Although Ballén's campaign slogan was "Ni un paso atrás" # (Not one step back), the clocks went back in 1993 and the experiment was not # repeated. For now, assume transitions were at 00:00 local time country-wide. # # Rule NAME FROM TO - IN ON AT SAVE LETTER/S Rule Ecuador 1992 only - Nov 28 0:00 1:00 - Rule Ecuador 1993 only - Feb 5 0:00 0 - # # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Guayaquil -5:19:20 - LMT 1890 -5:14:00 - QMT 1931 # Quito Mean Time -5:00 Ecuador %z Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno -5:00 - %z 1986 -6:00 Ecuador %z # Falklands # From Paul Eggert (2006-03-22): # Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except # the IATA gives 1996-09-08. Go with Shanks & Pottenger. # From Falkland Islands Government Office, London (2001-01-22) # via Jesper Nørgaard: # ... the clocks revert back to Local Mean Time at 2 am on Sunday 15 # April 2001 and advance one hour to summer time at 2 am on Sunday 2 # September. It is anticipated that the clocks will revert back at 2 # am on Sunday 21 April 2002 and advance to summer time at 2 am on # Sunday 1 September. # From Rives McDow (2001-02-13): # # I have communicated several times with people there, and the last # time I had communications that was helpful was in 1998. Here is # what was said then: # # "The general rule was that Stanley used daylight saving and the Camp # did not. However for various reasons many people in the Camp have # started to use daylight saving (known locally as 'Stanley Time') # There is no rule as to who uses daylight saving - it is a matter of # personal choice and so it is impossible to draw a map showing who # uses it and who does not. Any list would be out of date as soon as # it was produced. This year daylight saving ended on April 18/19th # and started again on September 12/13th. I do not know what the rule # is, but can find out if you like. We do not change at the same time # as UK or Chile." # # I did have in my notes that the rule was "Second Saturday in Sep at # 0:00 until third Saturday in Apr at 0:00". I think that this does # not agree in some cases with Shanks; is this true? # # Also, there is no mention in the list that some areas in the # Falklands do not use DST. I have found in my communications there # that these areas are on the western half of East Falkland and all of # West Falkland. Stanley is the only place that consistently observes # DST. Again, as in other places in the world, the farmers don't like # it. West Falkland is almost entirely sheep farmers. # # I know one lady there that keeps a list of which farm keeps DST and # which doesn't each year. She runs a shop in Stanley, and says that # the list changes each year. She uses it to communicate to her # customers, catching them when they are home for lunch or dinner. # From Paul Eggert (2001-03-05): # For now, we'll just record the time in Stanley, since we have no # better info. # From Steffen Thorsen (2011-04-01): # The Falkland Islands will not turn back clocks this winter, but stay on # daylight saving time. # # One source: # http://www.falklandnews.com/public/story.cfm?get=5914&source=3 # # We have gotten this confirmed by a clerk of the legislative assembly: # Normally the clocks revert to Local Mean Time (UTC/GMT -4 hours) on the # third Sunday of April at 0200hrs and advance to Summer Time (UTC/GMT -3 # hours) on the first Sunday of September at 0200hrs. # # IMPORTANT NOTE: During 2011, on a trial basis, the Falkland Islands # will not revert to local mean time, but clocks will remain on Summer # time (UTC/GMT - 3 hours) throughout the whole of 2011. Any long term # change to local time following the trial period will be notified. # # From Andrew Newman (2012-02-24) # A letter from Justin McPhee, Chief Executive, # Cable & Wireless Falkland Islands (dated 2012-02-22) # states... # The current Atlantic/Stanley entry under South America expects the # clocks to go back to standard Falklands Time (FKT) on the 15th April. # The database entry states that in 2011 Stanley was staying on fixed # summer time on a trial basis only. FIG need to contact IANA and/or # the maintainers of the database to inform them we're adopting # the same policy this year and suggest recommendations for future years. # # For now we will assume permanent -03 for the Falklands # until advised differently (to apply for 2012 and beyond, after the 2011 # experiment was apparently successful.) # Rule NAME FROM TO - IN ON AT SAVE LETTER/S Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 - Rule Falk 1938 1942 - Mar Sun>=19 0:00 0 - Rule Falk 1939 only - Oct 1 0:00 1:00 - Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 - Rule Falk 1943 only - Jan 1 0:00 0 - Rule Falk 1983 only - Sep lastSun 0:00 1:00 - Rule Falk 1984 1985 - Apr lastSun 0:00 0 - Rule Falk 1984 only - Sep 16 0:00 1:00 - Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 - Rule Falk 1986 2000 - Apr Sun>=16 0:00 0 - Rule Falk 2001 2010 - Apr Sun>=15 2:00 0 - Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 - # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone Atlantic/Stanley -3:51:24 - LMT 1890 -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time -4:00 Falk %z 1983 May -3:00 Falk %z 1985 Sep 15 -4:00 Falk %z 2010 Sep 5 2:00 -3:00 - %z # French Guiana # For the 1911/1912 establishment of standard time in French possessions, see: # Société Française de Physique, Recueil de constantes physiques (1913), # page 752, 18b. # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Cayenne -3:29:20 - LMT 1911 Jul 1 -4:00 - %z 1967 Oct -3:00 - %z # Guyana # From P Chan (2020-11-27): # https://books.google.com/books?id=5-5CAQAAMAAJ&pg=SA1-PA547 # The Official Gazette of British Guiana. (New Series.) Vol. XL. July to # December, 1915, p 1547, lists as several notes: # "Local Mean Time 3 hours 52 mins. 39 secs. slow of Greenwich Mean Time # (Georgetown.) From 1st August, 1911, British Guiana Standard Mean Time 4 # hours slow of Greenwich Mean Time, by notice in Official Gazette on 1st July, # 1911. From 1st March, 1915, British Guiana Standard Mean Time 3 hours 45 # mins. 0 secs. slow of Greenwich Mean Time, by notice in Official Gazette on # 23rd January, 1915." # # https://parliament.gov.gy/documents/acts/10923-act_no._27_of_1975_-_interpretation_and_general_clauses_(amendment)_act_1975.pdf # Interpretation and general clauses (Amendment) Act 1975 (Act No. 27 of 1975) # [dated 1975-07-31] # "This Act...shall come into operation on 1st August, 1975." # "...where any expression of time occurs...the time referred to shall signify # the standard time of Guyana which shall be three hours behind Greenwich Mean # Time." # # Circular No. 10/1992 dated 1992-03-20 # https://dps.gov.gy/wp-content/uploads/2018/12/1992-03-20-Circular-010.pdf # "...cabinet has decided that with effect from Sunday 29th March, 1992, Guyana # Standard Time would be re-established at 01:00 hours by adjusting the hands # of the clock back to 24:00 hours." # Legislated in the Interpretation and general clauses (Amendment) Act 1992 # (Act No. 6 of 1992) [passed 1992-03-27, published 1992-04-18] # https://parliament.gov.gy/documents/acts/5885-6_of_1992_interpretation_and_general_clauses_(amendment)_act_1992.pdf # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Guyana -3:52:39 - LMT 1911 Aug 1 # Georgetown -4:00 - %z 1915 Mar 1 -3:45 - %z 1975 Aug 1 -3:00 - %z 1992 Mar 29 1:00 -4:00 - %z # Paraguay # # From Paul Eggert (2006-03-22): # Shanks & Pottenger say that spring transitions are 01:00 -> 02:00, # and autumn transitions are 00:00 -> 23:00. Go with pre-1999 # editions of Shanks, and with the IATA, who say transitions occur at 00:00. # # From Waldemar Villamayor-Venialbo (2013-09-20): # No time of the day is established for the adjustment, so people normally # adjust their clocks at 0 hour of the given dates. # # Rule NAME FROM TO - IN ON AT SAVE LETTER/S Rule Para 1975 1988 - Oct 1 0:00 1:00 - Rule Para 1975 1978 - Mar 1 0:00 0 - Rule Para 1979 1991 - Apr 1 0:00 0 - Rule Para 1989 only - Oct 22 0:00 1:00 - Rule Para 1990 only - Oct 1 0:00 1:00 - Rule Para 1991 only - Oct 6 0:00 1:00 - Rule Para 1992 only - Mar 1 0:00 0 - Rule Para 1992 only - Oct 5 0:00 1:00 - Rule Para 1993 only - Mar 31 0:00 0 - Rule Para 1993 1995 - Oct 1 0:00 1:00 - Rule Para 1994 1995 - Feb lastSun 0:00 0 - Rule Para 1996 only - Mar 1 0:00 0 - # IATA SSIM (2000-02) says 1999-10-10; ignore this for now. # From Steffen Thorsen (2000-10-02): # I have three independent reports that Paraguay changed to DST this Sunday # (10-01). # # Translated by Gwillim Law (2001-02-27) from # Noticias, a daily paper in Asunción, Paraguay (2000-10-01): # http://www.diarionoticias.com.py/011000/nacional/naciona1.htm # Starting at 0:00 today, the clock will be set forward 60 minutes, in # fulfillment of Decree No. 7,273 of the Executive Power.... The time change # system has been operating for several years. Formerly there was a separate # decree each year; the new law has the same effect, but permanently. Every # year, the time will change on the first Sunday of October; likewise, the # clock will be set back on the first Sunday of March. # Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 - # IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger. Rule Para 1997 only - Feb lastSun 0:00 0 - # Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but # (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27). Rule Para 1998 2001 - Mar Sun>=1 0:00 0 - # From Rives McDow (2002-02-28): # A decree was issued in Paraguay (No. 16350) on 2002-02-26 that changed the # dst method to be from the first Sunday in September to the first Sunday in # April. Rule Para 2002 2004 - Apr Sun>=1 0:00 0 - Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 - # # From Jesper Nørgaard Welen (2005-01-02): # There are several sources that claim that Paraguay made # a timezone rule change in autumn 2004. # From Steffen Thorsen (2005-01-05): # Decree 1,867 (2004-03-05) # From Carlos Raúl Perasso via Jesper Nørgaard Welen (2006-10-13) # http://www.presidencia.gov.py/decretos/D1867.pdf Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 - Rule Para 2005 2009 - Mar Sun>=8 0:00 0 - # From Carlos Raúl Perasso (2010-02-18): # By decree number 3958 issued yesterday # http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf # Paraguay changes its DST schedule, postponing the March rule to April and # modifying the October date. The decree reads: # ... # Art. 1. It is hereby established that from the second Sunday of the month of # April of this year (2010), the official time is to be set back 60 minutes, # and that on the first Sunday of the month of October, it is to be set # forward 60 minutes, in all the territory of the Paraguayan Republic. # ... Rule Para 2010 2024 - Oct Sun>=1 0:00 1:00 - Rule Para 2010 2012 - Apr Sun>=8 0:00 0 - # # From Steffen Thorsen (2013-03-07): # Paraguay will end DST on 2013-03-24 00:00.... # http://www.ande.gov.py/interna.php?id=1075 # # From Carlos Raúl Perasso (2013-03-15): # The change in Paraguay is now final. Decree number 10780 # http://www.presidencia.gov.py/uploads/pdf/presidencia-3b86ff4b691c79d4f5927ca964922ec74772ce857c02ca054a52a37b49afc7fb.pdf # From Carlos Raúl Perasso (2014-02-28): # Decree 1264 can be found at: # http://www.presidencia.gov.py/archivos/documentos/DECRETO1264_ey9r8zai.pdf # # From Paul Eggert (2023-07-26): # Transition dates are now set by Law No. 7115, not by presidential decree. # https://www.abc.com.py/politica/2023/07/12/promulgacion-el-cambio-de-hora-sera-por-ley/ # From Carlos Raúl Perasso (2023-07-27): # http://silpy.congreso.gov.py/descarga/ley-144138 Rule Para 2013 2024 - Mar Sun>=22 0:00 0 - # # From Heitor David Pinto (2024-09-24): # Today the Congress of Paraguay passed a bill to observe UTC-3 permanently.... # The text of the bill says that it would enter into force on the first # Sunday in October 2024, the same date currently scheduled to start DST.... # https://silpy.congreso.gov.py/web/expediente/132531 # (2024-10-14): # The president approved the law on 11 October 2024, # and it was officially published on 14 October 2024. # https://www.gacetaoficial.gov.py/index/detalle_publicacion/89723 # The text of the law says that it enters into force on the first # Sunday in October 2024 (6 October 2024). But the constitution # prohibits retroactive effect, and the civil code says that laws # enter into force on the day after their publication or on the day # that they specify, and it also says that they don't have retroactive # effect. So I think that the time change on 6 October 2024 should # still be considered as DST according to the previous law, and # permanently UTC-3 from 15 October 2024 according to the new law.... # https://www.constituteproject.org/constitution/Paraguay_2011 # https://www.oas.org/dil/esp/codigo_civil_paraguay.pdf # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Asuncion -3:50:40 - LMT 1890 -3:50:40 - AMT 1931 Oct 10 # Asunción Mean Time -4:00 - %z 1972 Oct -3:00 - %z 1974 Apr -4:00 Para %z 2024 Oct 15 -3:00 - %z # Peru # # From Evelyn C. Leeper via Mark Brader (2003-10-26) # : # When we were in Peru in 1985-1986, they apparently switched over # sometime between December 29 and January 3 while we were on the Amazon. # # From Paul Eggert (2006-03-22): # Shanks & Pottenger don't have this transition. Assume 1986 was like 1987. # Rule NAME FROM TO - IN ON AT SAVE LETTER/S Rule Peru 1938 only - Jan 1 0:00 1:00 - Rule Peru 1938 only - Apr 1 0:00 0 - Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 - Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 - Rule Peru 1986 1987 - Jan 1 0:00 1:00 - Rule Peru 1986 1987 - Apr 1 0:00 0 - Rule Peru 1990 only - Jan 1 0:00 1:00 - Rule Peru 1990 only - Apr 1 0:00 0 - # IATA is ambiguous for 1993/1995; go with Shanks & Pottenger. Rule Peru 1994 only - Jan 1 0:00 1:00 - Rule Peru 1994 only - Apr 1 0:00 0 - # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Lima -5:08:12 - LMT 1890 -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time? -5:00 Peru %z # South Georgia # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken -2:00 - %z # South Sandwich Is # uninhabited; scientific personnel have wintered # Suriname # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Paramaribo -3:40:40 - LMT 1911 -3:40:52 - PMT 1935 # Paramaribo Mean Time -3:40:36 - PMT 1945 Oct # The capital moved? -3:30 - %z 1984 Oct -3:00 - %z # Trinidad and Tobago # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 -4:00 - AST Link America/Port_of_Spain America/Marigot Link America/Port_of_Spain America/St_Barthelemy # Uruguay # From Paul Eggert (1993-11-18): # Uruguay wins the prize for the strangest peacetime manipulation of the rules. # # From Tim Parenti (2018-02-20), per Jeremie Bonjour (2018-01-31) and Michael # Deckers (2018-02-20): # ... At least they kept good records... # # http://www.armada.mil.uy/ContenidosPDFs/sohma/web/almanaque/almanaque_2018.pdf#page=36 # Page 36 of Almanaque 2018, published by the Oceanography, Hydrography, and # Meteorology Service of the Uruguayan Navy, seems to give many transitions # with greater clarity than we've had before. It directly references many laws # and decrees which are, in turn, referenced below. They can be viewed in the # public archives of the Diario Oficial (in Spanish) at # http://www.impo.com.uy/diariooficial/ # # Ley No. 3920 of 1908-06-10 placed the determination of legal time under the # auspices of the National Institute for the Prediction of Time. It is unclear # exactly what offset was used during this period, though Ley No. 7200 of # 1920-04-23 used the Observatory of the National Meteorological Institute in # Montevideo (34° 54' 33" S, 56° 12' 45" W) as its reference meridian, # retarding legal time by 15 minutes 9 seconds from 1920-04-30 24:00, # resulting in UT-04. Assume the corresponding LMT of UT-03:44:51 (given on # page 725 of the Proceedings of the Second Pan-American Scientific Congress, # 1915-1916) was in use, and merely became official from 1908-06-10. # https://www.impo.com.uy/diariooficial/1908/06/18/12 # https://www.impo.com.uy/diariooficial/1920/04/27/9 # # Ley No. 7594 of 1923-06-28 specified legal time as Observatory time advanced # by 44 minutes 51 seconds (UT-03) "from 30 September to 31 March", and by 14 # minutes 51 seconds (UT-03:30) "the rest of the year"; a message from the # National Council of Administration the same day, published directly below the # law in the Diario Oficial, specified the first transition to be 1923-09-30 # 24:00. This effectively established standard time at UT-03:30 with 30 # minutes DST. Assume transitions at 24:00 on the specified days until Ley No. # 7919 of 1926-03-05 ended this arrangement, repealing all "laws and other # provisions which oppose" it, resulting in year-round UT-03:30; a Resolución # of 1926-03-11 puts the final transition at 1926-03-31 24:00, the same as it # would have been under the previous law. # https://www.impo.com.uy/diariooficial/1923/07/02/2 # https://www.impo.com.uy/diariooficial/1926/03/10/2 # https://www.impo.com.uy/diariooficial/1926/03/18/2 # # Rule NAME FROM TO - IN ON AT SAVE LETTER/S Rule Uruguay 1923 1925 - Oct 1 0:00 0:30 - Rule Uruguay 1924 1926 - Apr 1 0:00 0 - # From Tim Parenti (2018-02-15): # http://www.impo.com.uy/diariooficial/1933/10/27/6 # # It appears Ley No. 9122 of 1933 was never published as such in the Diario # Oficial, but instead appeared as Document 26 in the Diario on Friday # 1933-10-27 as a decree made Monday 1933-10-23 and filed under the Ministry of # National Defense. It reinstituted a DST of 30 minutes (to UT-03) "from the # last Sunday of October...until the last Saturday of March." In accordance # with this provision, the first transition was explicitly specified in Article # 2 of the decree as Saturday 1933-10-28 at 24:00; that is, Sunday 1933-10-29 # at 00:00. Assume transitions at 00:00 Sunday throughout. # # Departing from the matter-of-fact nature of previous timekeeping laws, the # 1933 decree "consider[s] the advantages of...the advance of legal time": # # "Whereas: The measure adopted by almost all nations at the time of the last # World War still persists in North America and Europe, precisely because of # the economic, hygienic, and social advantages derived from such an # emergency measure... # # Whereas: The advance of the legal time during the summer seasons, by # displacing social activity near sunrise, favors the citizen populations # and especially the society that creates and works..." # # It further specified that "necessary measures" be taken to ensure that # "public spectacles finish, in general, before [01:00]." Rule Uruguay 1933 1938 - Oct lastSun 0:00 0:30 - Rule Uruguay 1934 1941 - Mar lastSat 24:00 0 - # From Tim Parenti (2018-02-15): # Most of the Rules below, and their contemporaneous Zone lines, have been # updated simply to match the Almanaque 2018. Although the document does not # list exact transition times, midnight transitions were already present in our # data here for all transitions through 2004-09, and this is both consistent # with prior transitions and verified in several decrees marked below between # 1939-09 and 2004-09, wherein the relevant text was typically of the form: # # "From 0 hours on [date], the legal time of the entire Republic will be... # # In accordance with [the preceding], on [previous date] at 24 hours, all # clocks throughout the Republic will be [advanced/retarded] by..." # # It is possible that there is greater specificity to be found for the Rules # below, but it is buried in no fewer than 40 different decrees individually # referenced by the Almanaque for the period from 1939-09 to 2014-09. # Four-fifths of these were promulgated less than two weeks before taking # effect; more than half within a week and none more than 5 weeks. Only the # handful with comments below have been checked with any thoroughness. Rule Uruguay 1939 only - Oct 1 0:00 0:30 - Rule Uruguay 1940 only - Oct 27 0:00 0:30 - # From Tim Parenti (2018-02-15): # Decreto 1145 of the Ministry of National Defense, dated 1941-07-26, specified # UT-03 from Friday 1941-08-01 00:00, citing an "urgent...need to save fuel". # http://www.impo.com.uy/diariooficial/1941/08/04/1 Rule Uruguay 1941 only - Aug 1 0:00 0:30 - # From Tim Parenti (2018-02-15): # Decreto 1866 of the Ministry of National Defense, dated 1942-12-09, specified # further advancement (to UT-02:30) from Sunday 1942-12-13 24:00. Since clocks # never went back to UT-03:30 thereafter, this is modeled as advancing standard # time by 30 minutes to UT-03, while retaining 30 minutes of DST. # http://www.impo.com.uy/diariooficial/1942/12/16/3 Rule Uruguay 1942 only - Dec 14 0:00 0:30 - Rule Uruguay 1943 only - Mar 14 0:00 0 - Rule Uruguay 1959 only - May 24 0:00 0:30 - Rule Uruguay 1959 only - Nov 15 0:00 0 - Rule Uruguay 1960 only - Jan 17 0:00 1:00 - Rule Uruguay 1960 only - Mar 6 0:00 0 - Rule Uruguay 1965 only - Apr 4 0:00 1:00 - Rule Uruguay 1965 only - Sep 26 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 321/968 of 1968-05-25, citing emergency drought measures decreed the # day before, brought clocks forward 30 minutes from Monday 1968-05-27 00:00. # http://www.impo.com.uy/diariooficial/1968/05/30/5 Rule Uruguay 1968 only - May 27 0:00 0:30 - Rule Uruguay 1968 only - Dec 1 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 188/970 of 1970-04-23 instituted restrictions on electricity # consumption "as a consequence of the current rainfall regime in the country". # Articles 13 and 14 advanced clocks by an hour from Saturday 1970-04-25 00:00. # http://www.impo.com.uy/diariooficial/1970/04/29/4 Rule Uruguay 1970 only - Apr 25 0:00 1:00 - Rule Uruguay 1970 only - Jun 14 0:00 0 - Rule Uruguay 1972 only - Apr 23 0:00 1:00 - Rule Uruguay 1972 only - Jul 16 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 29/974 of 1974-01-11, citing "the international rise in the price of # oil", advanced clocks by 90 minutes (to UT-01:30). Decreto 163/974 of # 1974-03-04 returned 60 of those minutes (to UT-02:30), and the remaining 30 # minutes followed in Decreto 679/974 of 1974-08-29. # http://www.impo.com.uy/diariooficial/1974/01/22/11 # http://www.impo.com.uy/diariooficial/1974/03/14/3 # http://www.impo.com.uy/diariooficial/1974/09/04/6 Rule Uruguay 1974 only - Jan 13 0:00 1:30 - Rule Uruguay 1974 only - Mar 10 0:00 0:30 - Rule Uruguay 1974 only - Sep 1 0:00 0 - Rule Uruguay 1974 only - Dec 22 0:00 1:00 - Rule Uruguay 1975 only - Mar 30 0:00 0 - Rule Uruguay 1976 only - Dec 19 0:00 1:00 - Rule Uruguay 1977 only - Mar 6 0:00 0 - Rule Uruguay 1977 only - Dec 4 0:00 1:00 - Rule Uruguay 1978 1979 - Mar Sun>=1 0:00 0 - Rule Uruguay 1978 only - Dec 17 0:00 1:00 - Rule Uruguay 1979 only - Apr 29 0:00 1:00 - Rule Uruguay 1980 only - Mar 16 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 725/987 of 1987-12-04 cited "better use of national tourist # attractions" to advance clocks one hour from Monday 1987-12-14 00:00. # http://www.impo.com.uy/diariooficial/1988/01/25/1 Rule Uruguay 1987 only - Dec 14 0:00 1:00 - Rule Uruguay 1988 only - Feb 28 0:00 0 - Rule Uruguay 1988 only - Dec 11 0:00 1:00 - Rule Uruguay 1989 only - Mar 5 0:00 0 - Rule Uruguay 1989 only - Oct 29 0:00 1:00 - Rule Uruguay 1990 only - Feb 25 0:00 0 - # From Tim Parenti (2018-02-15), per Paul Eggert (1999-11-04): # IATA agrees as below for 1990-10 through 1993-02. Per Almanaque 2018, the # 1992/1993 season appears to be the first in over half a century where DST # both began and ended pursuant to the same decree. Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 - Rule Uruguay 1991 1992 - Mar Sun>=1 0:00 0 - Rule Uruguay 1992 only - Oct 18 0:00 1:00 - Rule Uruguay 1993 only - Feb 28 0:00 0 - # From Eduardo Cota (2004-09-20): # The Uruguayan government has decreed a change in the local time.... # From Tim Parenti (2018-02-15): # Decreto 328/004 of 2004-09-15. # http://www.impo.com.uy/diariooficial/2004/09/23/documentos.pdf#page=1 Rule Uruguay 2004 only - Sep 19 0:00 1:00 - # From Steffen Thorsen (2005-03-11): # Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to # save energy ... it was postponed two weeks.... # From Tim Parenti (2018-02-15): # This 2005 postponement is not in Almanaque 2018. Go with the contemporaneous # reporting, which is confirmed by Decreto 107/005 of 2005-03-10 amending # Decreto 328/004: # http://www.impo.com.uy/diariooficial/2005/03/15/documentos.pdf#page=1 # The original decree specified a transition of 2005-03-12 24:00, but the new # one specified 2005-03-27 02:00. Rule Uruguay 2005 only - Mar 27 2:00 0 - # From Eduardo Cota (2005-09-27): # ...from 2005-10-09 at 02:00 local time, until 2006-03-12 at 02:00 local time, # official time in Uruguay will be at GMT -2. # From Tim Parenti (2018-02-15): # Decreto 318/005 of 2005-09-19. # http://www.impo.com.uy/diariooficial/2005/09/23/documentos.pdf#page=1 Rule Uruguay 2005 only - Oct 9 2:00 1:00 - Rule Uruguay 2006 2015 - Mar Sun>=8 2:00 0 - # From Tim Parenti (2018-02-15), per Jesper Nørgaard Welen (2006-09-06): # Decreto 311/006 of 2006-09-04 established regular DST from the first Sunday # of October at 02:00 through the second Sunday of March at 02:00. Almanaque # 2018 appears to have a few typoed dates through this period; ignore them. # http://www.impo.com.uy/diariooficial/2006/09/08/documentos.pdf#page=1 Rule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 - # From Steffen Thorsen (2015-06-30): # ... it looks like they will not be using DST the coming summer: # http://www.elobservador.com.uy/gobierno-resolvio-que-no-habra-cambio-horario-verano-n656787 # http://www.republica.com.uy/este-ano-no-se-modificara-el-huso-horario-en-uruguay/523760/ # From Paul Eggert (2015-06-30): # Apparently restaurateurs complained that DST caused people to go to the beach # instead of out to dinner. # From Pablo Camargo (2015-07-13): # http://archivo.presidencia.gub.uy/sci/decretos/2015/06/cons_min_201.pdf # From Tim Parenti (2018-02-15): # Decreto 178/015 of 2015-06-29; repeals Decreto 311/006. # This Zone can be simplified once we assume zic %z. Zone America/Montevideo -3:44:51 - LMT 1908 Jun 10 -3:44:51 - MMT 1920 May 1 # Montevideo MT -4:00 - %z 1923 Oct 1 -3:30 Uruguay %z 1942 Dec 14 -3:00 Uruguay %z 1960 -3:00 Uruguay %z 1968 -3:00 Uruguay %z 1970 -3:00 Uruguay %z 1974 -3:00 Uruguay %z 1974 Mar 10 -3:00 Uruguay %z 1974 Dec 22 -3:00 Uruguay %z # Venezuela # # From Paul Eggert (2015-07-28): # For the 1965 transition see Gaceta Oficial No. 27.619 (1964-12-15), p 205.533 # http://www.pgr.gob.ve/dmdocuments/1964/27619.pdf # # From John Stainforth (2007-11-28): # ... the change for Venezuela originally expected for 2007-12-31 has # been brought forward to 2007-12-09. The official announcement was # published today in the "Gaceta Oficial de la República Bolivariana # de Venezuela, número 38.819" (official document for all laws or # resolution publication) # http://www.globovision.com/news.php?nid=72208 # From Alexander Krivenyshev (2016-04-15): # https://actualidad.rt.com/actualidad/204758-venezuela-modificar-huso-horario-sequia-elnino # # From Paul Eggert (2016-04-15): # Clocks advance 30 minutes on 2016-05-01 at 02:30.... # "'Venezuela's new time-zone: hours without light, hours without water, # hours of presidential broadcasts, hours of lines,' quipped comedian # Jean Mary Curró ...". See: Cawthorne A, Kai D. Venezuela scraps # half-hour time difference set by Chavez. Reuters 2016-04-15 14:50 -0400 # https://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE # # From Matt Johnson (2016-04-20): # ... published in the official Gazette [2016-04-18], here: # http://historico.tsj.gob.ve/gaceta_ext/abril/1842016/E-1842016-4551.pdf # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Caracas -4:27:44 - LMT 1890 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time? -4:30 - %z 1965 Jan 1 0:00 -4:00 - %z 2007 Dec 9 3:00 -4:30 - %z 2016 May 1 2:30 -4:00 - %z @ 1.4 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. @ 1.4.2.1 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. @ 1.3 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 @d1255 5 a1259 1 # http://www.diariooficial.interior.gob.cl//media/2014/02/19/do-20140219.pdf d1264 5 a1268 4 # http://www.diariooficial.interior.gob.cl/media/2015/03/03/1-large.jpg # # From Paul Eggert (2015-03-03): # For now, assume that the extension will persist indefinitely. d1271 1 a1271 3 # The decree regarding DST has been published in today's Official Gazette: # http://www.diariooficial.interior.gob.cl/versiones-anteriores/do/20160318/ # http://www.leychile.cl/Navegar?idNorma=1088502 a1274 1 # a1275 1 # For now, assume the pattern holds for the indefinite future. d1279 5 d1288 6 a1293 2 # From Deborah Goldsmith (2017-01-19): # http://www.diariooficial.interior.gob.cl/publicaciones/2017/01/17/41660/01/1169626.pdf d1312 5 a1316 2 # From Juan Correa (2019-02-04): # http://www.diariooficial.interior.gob.cl/publicaciones/2018/11/23/42212/01/1498738.pdf d1320 4 a1323 1 # Magallanes region to UTC -3 "indefinitely". The decree is available at d1325 1 d1334 3 a1336 1 # From Eduardo Romero Urra (2022-08-17): d1338 1 d1344 20 d1420 14 @ 1.2 log @ Revert update to tzdata2025a - I botched it. A new update should be appearing within minutes. @ text @d1703 1 a1703 1 Rule Para 2010 max - Oct Sun>=1 0:00 1:00 - d1722 21 a1742 1 Rule Para 2013 max - Mar Sun>=22 0:00 0 - d1749 2 a1750 1 -4:00 Para %z @ 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 3 a13 2 # From Paul Eggert (2006-03-22): # A good source for time zone historical data outside the U.S. is d16 1 d18 2 a19 6 # For data circa 1899, a common source is: # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94 # . # # Gwillim Law writes that a good source # for recent time zone data is the International Air Transport d22 2 a23 1 # of the IATA's data after 1990. d25 3 a27 2 # Except where otherwise noted, Shanks & Pottenger is the source for # entries through 1990, and IATA SSIM is the source for entries afterwards. d29 4 a32 26 # Earlier editions of these tables used the North American style (e.g. ARST and # ARDT for Argentine Standard and Daylight Time), but the following quote # suggests that it's better to use European style (e.g. ART and ARST). # I suggest the use of _Summer time_ instead of the more cumbersome # _daylight-saving time_. _Summer time_ seems to be in general use # in Europe and South America. # -- E O Cutler, _New York Times_ (1937-02-14), quoted in # H L Mencken, _The American Language: Supplement I_ (1960), p 466 # # Earlier editions of these tables also used the North American style # for time zones in Brazil, but this was incorrect, as Brazilians say # "summer time". Reinaldo Goulart, a São Paulo businessman active in # the railroad sector, writes (1999-07-06): # The subject of time zones is currently a matter of discussion/debate in # Brazil. Let's say that "the Brasília time" is considered the # "official time" because Brasília is the capital city. # The other three time zones are called "Brasília time "minus one" or # "plus one" or "plus two". As far as I know there is no such # name/designation as "Eastern Time" or "Central Time". # So I invented the following (English-language) abbreviations for now. # Corrections are welcome! # std dst # -2:00 FNT FNST Fernando de Noronha # -3:00 BRT BRST Brasília # -4:00 AMT AMST Amazon # -5:00 ACT ACST Acre d51 2 a52 2 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Arg 1930 only - Dec 1 0:00 1:00 S d54 1 a54 1 Rule Arg 1931 only - Oct 15 0:00 1:00 S d56 2 a57 2 Rule Arg 1932 1939 - Nov 1 0:00 1:00 S Rule Arg 1940 only - Jul 1 0:00 1:00 S d59 1 a59 1 Rule Arg 1941 only - Oct 15 0:00 1:00 S d61 1 a61 1 Rule Arg 1943 only - Oct 15 0:00 1:00 S d63 1 a63 1 Rule Arg 1946 only - Oct 1 0:00 1:00 S d65 1 a65 1 Rule Arg 1963 only - Dec 15 0:00 1:00 S d67 1 a67 1 Rule Arg 1964 1966 - Oct 15 0:00 1:00 S d69 1 a69 1 Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S d71 1 a71 1 Rule Arg 1974 only - Jan 23 0:00 1:00 S d73 1 a73 1 Rule Arg 1988 only - Dec 1 0:00 1:00 S d81 1 a81 1 Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S d92 1 a92 1 Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 S d114 1 a114 1 # ... The Law itself is "Ley No 25155", sanctioned on 1999-08-25, enacted d158 3 a160 7 # From Rodrigo Severo (2008-10-06): # Here is some info available at a Gentoo bug related to TZ on Argentina's DST: # ... # ------- Comment #1 from [jmdocile] 2008-10-06 16:28 0000 ------- # Hi, there is a problem with timezone-data-2008e and maybe with # timezone-data-2008f # Argentinian law [Number] 25.155 is no longer valid. d162 1 a162 1 # The new one is law [Number] 26.350 d167 2 a168 2 # Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST in Argentina # From 2008-10-19 until 2009-03-15 d177 3 a179 2 # Press release 235 dated Saturday October 18th, from the Government of the Province of Jujuy saying # it will not apply DST either (even when it was not included in Decree 1705/2008) d185 2 a186 1 # (an official .gob.ar) under title: "Sin Cambio de Hora" (english: "No hour change") d195 1 a195 1 Rule Arg 2007 only - Dec 30 0:00 1:00 S d197 1 a197 1 Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S d207 3 a209 3 # From Paul Eggert (2006-03-22): # Hora de verano para la Republica Argentina (2003-06-08) # d211 4 a214 2 # to 1920-05-01 was -4:16:48.25. Go with this more-precise value # over Shanks & Pottenger. d272 2 a273 2 # http://www.lagaceta.com.ar/nota/253414/Economia/Es-inminente-que-en-San-Luis-atrasen-una-hora-los-relojes.html # http://www.worldtimezone.net/dst_news/dst_news_argentina02.html d284 1 a284 1 # The change is supposed to take place Monday the 21.st at 0:00 d316 3 a318 3 # From Paul Eggert (2008-06-30): # Unless otherwise specified, data are from Shanks & Pottenger through 1992, # from the IATA otherwise. As noted below, Shanks & Pottenger say that a368 6 # # I'm enclosing a patch that does what I say... regretfully, the San Luis # timezone must be called "WART/WARST" even when most of the time (like, # right now) WARST == ART... that is, since last Sunday, all the country # is using UTC-3, but in my patch, San Luis calls it "WARST" and the rest # of the country calls it "ART". d372 1 a372 1 # According to news reports from El Diario de la Republica Province San d388 5 a392 5 # From Paul Eggert (2013-09-05): # Perhaps San Luis operates on the legal fiction that it is at UTC-4 # with perpetual summer time, but ordinary usage typically seems to # just say it's at UTC-3; see, for example, # . d397 1 a397 4 # setting for time stamps past 2038. # From Paul Eggert (2013-02-21): # Milne says Córdoba time was -4:16:48.2. Round to the nearest second. d399 1 a399 1 # Zone NAME GMTOFF RULES FORMAT [UNTIL] d402 8 a409 7 Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May # Córdoba Mean Time -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 Arg AR%sT d421 1 d424 7 a430 7 -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 3 -4:00 - WART 1991 Oct 20 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 Arg AR%sT d434 1 d436 8 a443 8 -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 3 -4:00 - WART 1991 Oct 20 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART d447 1 d449 9 a457 9 -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 3 -4:00 - WART 1991 Oct 20 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 Jun 1 -4:00 - WART 2004 Jun 13 -3:00 Arg AR%sT d461 1 d463 10 a472 10 -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 1 -4:00 - WART 1991 May 7 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 Jun 1 -4:00 - WART 2004 Jun 20 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART d476 1 d478 10 a487 10 -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 1 -4:00 - WART 1991 May 7 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 May 31 -4:00 - WART 2004 Jul 25 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART d491 1 d493 11 a503 11 -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1990 Mar 4 -4:00 - WART 1990 Oct 28 -4:00 1:00 WARST 1991 Mar 17 -4:00 - WART 1991 Oct 6 -3:00 1:00 ARST 1992 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART d507 1 d509 10 a518 10 -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 3 -4:00 - WART 1991 Oct 20 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 Jun 1 -4:00 - WART 2004 Jun 20 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART d522 1 d524 14 a537 14 -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1990 Mar 4 -4:00 - WART 1990 Oct 15 -4:00 1:00 WARST 1991 Mar 1 -4:00 - WART 1991 Oct 15 -4:00 1:00 WARST 1992 Mar 1 -4:00 - WART 1992 Oct 18 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 May 23 -4:00 - WART 2004 Sep 26 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART d542 1 a542 1 Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 S d545 1 d547 14 a560 14 -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1990 -3:00 1:00 ARST 1990 Mar 14 -4:00 - WART 1990 Oct 15 -4:00 1:00 WARST 1991 Mar 1 -4:00 - WART 1991 Jun 1 -3:00 - ART 1999 Oct 3 -4:00 1:00 WARST 2000 Mar 3 -3:00 - ART 2004 May 31 -4:00 - WART 2004 Jul 25 -3:00 Arg AR%sT 2008 Jan 21 -4:00 SanLuis WAR%sT 2009 Oct 11 -3:00 - ART d563 11 a573 10 Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May # Córdoba Mean Time -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 Jun 1 -4:00 - WART 2004 Jun 20 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART d576 11 a586 10 Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May # Córdoba Mean Time -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 May 30 -4:00 - WART 2004 Jun 20 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART d589 4 a592 1 Link America/Curacao America/Aruba d595 1 a595 1 # Zone NAME GMTOFF RULES FORMAT [UNTIL] d598 2 a599 2 -4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST -4:00 - BOT # Bolivia Time d663 1 a663 1 # modern Brazilian eletronic voting machines which, apparently, can't deal d675 1 a675 1 # a) The timezone UTC+5 is e[x]tinguished, with all the Acre state and the d712 2 a713 2 # Decretos sobre o Horário de Verão no Brasil # . d735 1 a735 1 # http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html d744 1 a744 1 # http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html d758 1 a758 1 # DECRETO No- 7.584, DE 13 DE OUTUBRO DE 2011 d770 1 a770 1 # http://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html d776 1 a776 1 # http://www.timeanddate.com/news/time/brazil-starts-dst-2013.html d779 1 a779 1 # http://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html d787 1 a787 1 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S d790 1 a790 1 Rule Brazil 1931 only - Oct 3 11:00 1:00 S d792 1 a792 1 Rule Brazil 1932 only - Oct 3 0:00 1:00 S d797 1 a797 1 Rule Brazil 1949 1952 - Dec 1 0:00 1:00 S d809 1 a809 1 Rule Brazil 1963 only - Dec 9 0:00 1:00 S d814 1 a814 1 Rule Brazil 1965 only - Jan 31 0:00 1:00 S d817 1 a817 1 Rule Brazil 1965 only - Dec 1 0:00 1:00 S d820 1 a820 1 Rule Brazil 1966 1967 - Nov 1 0:00 1:00 S d824 1 a824 1 Rule Brazil 1985 only - Nov 2 0:00 1:00 S d829 1 a829 1 Rule Brazil 1986 only - Oct 25 0:00 1:00 S d832 1 a832 1 Rule Brazil 1987 only - Oct 25 0:00 1:00 S d836 1 a836 1 Rule Brazil 1988 only - Oct 16 0:00 1:00 S d840 1 a840 1 Rule Brazil 1989 only - Oct 15 0:00 1:00 S d845 1 a845 1 Rule Brazil 1990 only - Oct 21 0:00 1:00 S d849 1 a849 1 Rule Brazil 1991 only - Oct 20 0:00 1:00 S d853 1 a853 1 Rule Brazil 1992 only - Oct 25 0:00 1:00 S d863 1 a863 1 Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S d868 1 a868 1 Rule Brazil 1996 only - Oct 6 0:00 1:00 S d878 1 a878 1 Rule Brazil 1997 only - Oct 6 0:00 1:00 S d884 1 a884 1 Rule Brazil 1998 only - Oct 11 0:00 1:00 S d890 1 a890 1 Rule Brazil 1999 only - Oct 3 0:00 1:00 S d900 1 a900 1 Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S d904 1 a904 1 Rule Brazil 2002 only - Nov 3 0:00 1:00 S d907 1 a907 1 Rule Brazil 2003 only - Oct 19 0:00 1:00 S d910 1 a910 1 Rule Brazil 2004 only - Nov 2 0:00 1:00 S d913 1 a913 1 Rule Brazil 2005 only - Oct 16 0:00 1:00 S d916 1 a916 1 Rule Brazil 2006 only - Nov 5 0:00 1:00 S d920 1 a920 1 Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 S d927 1 a927 1 Rule Brazil 2008 max - Oct Sun>=15 0:00 1:00 S d929 2 d932 4 d938 16 a953 13 Rule Brazil 2016 2022 - Feb Sun>=15 0:00 0 - Rule Brazil 2023 only - Feb Sun>=22 0:00 0 - Rule Brazil 2024 2025 - Feb Sun>=15 0:00 0 - Rule Brazil 2026 only - Feb Sun>=22 0:00 0 - Rule Brazil 2027 2033 - Feb Sun>=15 0:00 0 - Rule Brazil 2034 only - Feb Sun>=22 0:00 0 - Rule Brazil 2035 2036 - Feb Sun>=15 0:00 0 - Rule Brazil 2037 only - Feb Sun>=22 0:00 0 - # From Arthur David Olson (2008-09-29): # The next is wrong in some years but is better than nothing. Rule Brazil 2038 max - Feb Sun>=15 0:00 0 - # The latest ruleset listed above says that the following states observe DST: d955 10 d966 1 a966 1 # Zone NAME GMTOFF RULES FORMAT [UNTIL] d970 6 a975 6 -2:00 Brazil FN%sT 1990 Sep 17 -2:00 - FNT 1999 Sep 30 -2:00 Brazil FN%sT 2000 Oct 15 -2:00 - FNT 2001 Sep 13 -2:00 Brazil FN%sT 2002 Oct 1 -2:00 - FNT d988 2 a989 2 -3:00 Brazil BR%sT 1988 Sep 12 -3:00 - BRT d994 3 a996 3 -4:00 Brazil AM%sT 1988 Sep 12 -4:00 - AMT 2008 Jun 24 00:00 -3:00 - BRT d1001 6 a1006 6 -3:00 Brazil BR%sT 1990 Sep 17 -3:00 - BRT 1999 Sep 30 -3:00 Brazil BR%sT 2000 Oct 22 -3:00 - BRT 2001 Sep 13 -3:00 Brazil BR%sT 2002 Oct 1 -3:00 - BRT d1010 6 a1015 6 -3:00 Brazil BR%sT 1990 Sep 17 -3:00 - BRT 1999 Sep 30 -3:00 Brazil BR%sT 2000 Oct 15 -3:00 - BRT 2001 Sep 13 -3:00 Brazil BR%sT 2002 Oct 1 -3:00 - BRT d1019 6 a1024 6 -3:00 Brazil BR%sT 1990 Sep 17 -3:00 - BRT 1995 Sep 14 -3:00 Brazil BR%sT 2003 Sep 24 -3:00 - BRT 2012 Oct 21 -3:00 Brazil BR%sT 2013 Sep -3:00 - BRT d1028 8 a1035 8 -3:00 Brazil BR%sT 1990 Sep 17 -3:00 - BRT 1995 Oct 13 -3:00 Brazil BR%sT 1996 Sep 4 -3:00 - BRT 1999 Sep 30 -3:00 Brazil BR%sT 2000 Oct 22 -3:00 - BRT 2001 Sep 13 -3:00 Brazil BR%sT 2002 Oct 1 -3:00 - BRT d1041 4 a1044 4 -3:00 Brazil BR%sT 2003 Sep 24 -3:00 - BRT 2011 Oct 16 -3:00 Brazil BR%sT 2012 Oct 21 -3:00 - BRT d1050 3 a1052 3 -3:00 Brazil BR%sT 1963 Oct 23 00:00 -3:00 1:00 BRST 1964 -3:00 Brazil BR%sT d1056 1 a1056 1 -4:00 Brazil AM%sT d1060 3 a1062 3 -4:00 Brazil AM%sT 2003 Sep 24 -4:00 - AMT 2004 Oct 1 -4:00 Brazil AM%sT d1066 2 a1067 2 -4:00 Brazil AM%sT 1988 Sep 12 -4:00 - AMT d1071 4 a1074 4 -4:00 Brazil AM%sT 1988 Sep 12 -4:00 - AMT 1999 Sep 30 -4:00 Brazil AM%sT 2000 Oct 15 -4:00 - AMT d1080 4 a1083 4 -4:00 Brazil AM%sT 1988 Sep 12 -4:00 - AMT 1993 Sep 28 -4:00 Brazil AM%sT 1994 Sep 22 -4:00 - AMT d1088 6 a1093 6 -5:00 Brazil AC%sT 1988 Sep 12 -5:00 - ACT 1993 Sep 28 -5:00 Brazil AC%sT 1994 Sep 22 -5:00 - ACT 2008 Jun 24 00:00 -4:00 - AMT 2013 Nov 10 -5:00 - ACT d1097 4 a1100 4 -5:00 Brazil AC%sT 1988 Sep 12 -5:00 - ACT 2008 Jun 24 00:00 -4:00 - AMT 2013 Nov 10 -5:00 - ACT d1104 88 a1203 18 # From Oscar van Vlijmen (2006-10-08): # http://www.horaoficial.cl/cambio.htm # From Jesper Nørgaard Welen (2006-10-08): # I think that there are some obvious mistakes in the suggested link # from Oscar van Vlijmen,... for instance entry 66 says that GMT-4 # ended 1990-09-12 while entry 67 only begins GMT-3 at 1990-09-15 # (they should have been 1990-09-15 and 1990-09-16 respectively), but # anyhow it clears up some doubts too. # From Paul Eggert (2006-12-27): # The following data for Chile and America/Santiago are from # (2006-09-20), transcribed by # Jesper Nørgaard Welen. The data for Pacific/Easter are from Shanks # & Pottenger, except with DST transitions after 1932 cloned from # America/Santiago. The pre-1980 Pacific/Easter data are dubious, # but we have no other source. d1210 1 a1210 3 # and the instructions for 2008 are located in: # http://www.horaoficial.cl/cambio.htm a1211 2 # ... # You could see the announces of the change on a1216 1 # (in Spanish, last paragraph). d1218 1 a1218 3 # This is breaking news. There should be more information available later. # From Arthur Daivd Olson (2010-03-06): a1220 14 # From Glenn Eychaner (2011-03-02): [geychaner@@mac.com] # It appears that the Chilean government has decided to postpone the # change from summer time to winter time again, by three weeks to April # 2nd: # http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651 # # This is not yet reflected in the official "cambio de hora" site, but # probably will be soon: # http://www.horaoficial.cl/cambio.htm # From Arthur David Olson (2011-03-02): # The emol.com article mentions a water shortage as the cause of the # postponement, which may mean that it's not a permanent change. a1221 1 # The article: a1222 1 # d1226 1 a1226 2 # August, not in October as they have since 1968. This is a pilot plan # which will be reevaluated in 2012. d1232 1 a1232 2 # (to leave DST) from March 11 2012 to April 28th 2012. The decision has not # been yet formalized but it will within the next days. d1257 66 a1322 2 # NOTE: ChileAQ rules for Antarctic bases are stored separately in the # 'antarctica' file. d1324 2 a1325 2 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Chile 1927 1932 - Sep 1 0:00 1:00 S d1327 1 a1327 6 Rule Chile 1942 only - Jun 1 4:00u 0 - Rule Chile 1942 only - Aug 1 5:00u 1:00 S Rule Chile 1946 only - Jul 15 4:00u 1:00 S Rule Chile 1946 only - Sep 1 3:00u 0:00 - Rule Chile 1947 only - Apr 1 4:00u 0 - Rule Chile 1968 only - Nov 3 4:00u 1:00 S d1329 1 a1329 1 Rule Chile 1969 only - Nov 23 4:00u 1:00 S d1332 1 a1332 1 Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 S d1334 2 a1335 2 Rule Chile 1973 only - Sep 30 4:00u 1:00 S Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S d1337 3 a1339 5 Rule Chile 1988 1989 - Mar Sun>=9 3:00u 0 - Rule Chile 1988 only - Oct Sun>=1 4:00u 1:00 S Rule Chile 1989 only - Oct Sun>=9 4:00u 1:00 S Rule Chile 1990 only - Mar 18 3:00u 0 - Rule Chile 1990 only - Sep 16 4:00u 1:00 S d1341 1 a1341 1 Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S d1344 1 a1344 1 Rule Chile 1998 only - Sep 27 4:00u 1:00 S d1346 1 a1346 1 Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 S d1354 9 a1362 3 Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 S Rule Chile 2012 max - Apr Sun>=23 3:00u 0 - Rule Chile 2012 max - Sep Sun>=2 4:00u 1:00 S d1365 30 a1394 10 # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Santiago -4:42:46 - LMT 1890 -4:42:46 - SMT 1910 # Santiago Mean Time -5:00 - CLT 1916 Jul 1 # Chile Time -4:42:46 - SMT 1918 Sep 1 # Santiago Mean Time -4:00 - CLT 1919 Jul 1 # Chile Time -4:42:46 - SMT 1927 Sep 1 # Santiago Mean Time -5:00 Chile CL%sT 1947 May 22 # Chile Time -4:00 Chile CL%sT Zone Pacific/Easter -7:17:44 - LMT 1890 d1396 2 a1397 2 -7:00 Chile EAS%sT 1982 Mar 13 21:00 # Easter I Time -6:00 Chile EAS%sT d1403 19 d1424 1 a1424 1 # Milne gives 4:56:16.4 for Bogotá time in 1899; round to nearest. He writes, d1427 10 a1436 4 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule CO 1992 only - May 3 0:00 1:00 S Rule CO 1993 only - Apr 4 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] d1439 1 a1439 1 -5:00 CO CO%sT # Colombia Time d1444 3 a1446 20 # Milne gives 4:35:46.9 for Curaçao mean time; round to nearest. # # From Paul Eggert (2006-03-22): # Shanks & Pottenger say that The Bottom and Philipsburg have been at # -4:00 since standard time was introduced on 1912-03-02; and that # Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from # 1912-02-02 to 1965-01-01. The former is dubious, since S&P also say # Saba Island has been like Curaçao. # This all predates our 1970 cutoff, though. # # By July 2007 Curaçao and St Maarten are planned to become # associated states within the Netherlands, much like Aruba; # Bonaire, Saba and St Eustatius would become directly part of the # Netherlands as Kingdom Islands. This won't affect their time zones # though, as far as we know. # # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad -4:30 - ANT 1965 # Netherlands Antilles Time d1449 2 a1450 8 # From Arthur David Olson (2011-06-15): # use links for places with new iso3166 codes. # The name "Lower Prince's Quarter" is both longer than fourteen characters # and contains an apostrophe; use "Lower_Princes" below. Link America/Curacao America/Lower_Princes # Sint Maarten Link America/Curacao America/Kralendijk # Caribbean Netherlands d1455 18 a1472 5 # From Paul Eggert (2007-03-04): # Apparently Ecuador had a failed experiment with DST in 1992. # (2007-02-27) and # (2006-11-06) both # talk about "hora Sixto". Leave this alone for now, as we have no data. d1474 1 a1474 1 # Zone NAME GMTOFF RULES FORMAT [UNTIL] d1477 1 a1477 1 -5:00 - ECT # Ecuador Time d1479 2 a1480 2 -5:00 - ECT 1986 -6:00 - GALT # Galápagos Time d1561 1 a1561 1 # For now we will assume permanent summer time for the Falklands d1564 2 a1565 2 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 S d1567 2 a1568 2 Rule Falk 1939 only - Oct 1 0:00 1:00 S Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 S d1570 1 a1570 1 Rule Falk 1983 only - Sep lastSun 0:00 1:00 S d1572 2 a1573 2 Rule Falk 1984 only - Sep 16 0:00 1:00 S Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 S d1576 2 a1577 2 Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] d1579 5 a1583 5 -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time -4:00 Falk FK%sT 1983 May # Falkland Is Time -3:00 Falk FK%sT 1985 Sep 15 -4:00 Falk FK%sT 2010 Sep 5 02:00 -3:00 - FKST d1586 7 a1592 4 # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Cayenne -3:29:20 - LMT 1911 Jul -4:00 - GFT 1967 Oct # French Guiana Time -3:00 - GFT d1595 35 a1629 7 # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown -3:45 - GBGT 1966 May 26 # Br Guiana Time -3:45 - GYT 1975 Jul 31 # Guyana Time -3:00 - GYT 1991 # IATA SSIM (1996-06) says -4:00. Assume a 1991 switch. -4:00 - GYT d1642 2 a1643 2 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Para 1975 1988 - Oct 1 0:00 1:00 S d1646 3 a1648 3 Rule Para 1989 only - Oct 22 0:00 1:00 S Rule Para 1990 only - Oct 1 0:00 1:00 S Rule Para 1991 only - Oct 6 0:00 1:00 S d1650 1 a1650 1 Rule Para 1992 only - Oct 5 0:00 1:00 S d1652 1 a1652 1 Rule Para 1993 1995 - Oct 1 0:00 1:00 S d1661 2 a1662 2 # Noticias, a daily paper in Asunción, Paraguay (2000-10-01) # : d1670 1 a1670 1 Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S d1677 1 a1677 1 # A decree was issued in Paraguay (no. 16350) on 2002-02-26 that changed the d1681 1 a1681 1 Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S d1689 2 a1690 2 # Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 S d1703 1 a1703 1 Rule Para 2010 max - Oct Sun>=1 0:00 1:00 S d1716 6 d1724 1 a1724 1 # Zone NAME GMTOFF RULES FORMAT [UNTIL] d1727 3 a1729 3 -4:00 - PYT 1972 Oct # Paraguay Time -3:00 - PYT 1974 Apr -4:00 Para PY%sT d1741 2 a1742 2 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Peru 1938 only - Jan 1 0:00 1:00 S d1744 1 a1744 1 Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S d1746 1 a1746 1 Rule Peru 1986 1987 - Jan 1 0:00 1:00 S d1748 1 a1748 1 Rule Peru 1990 only - Jan 1 0:00 1:00 S d1751 1 a1751 1 Rule Peru 1994 only - Jan 1 0:00 1:00 S d1753 1 a1753 1 # Zone NAME GMTOFF RULES FORMAT [UNTIL] d1756 1 a1756 1 -5:00 Peru PE%sT # Peru Time d1759 3 a1761 3 # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken -2:00 - GST # South Georgia Time d1767 1 a1767 1 # Zone NAME GMTOFF RULES FORMAT [UNTIL] d1770 3 a1772 4 -3:40:36 - PMT 1945 Oct # The capital moved? -3:30 - NEGT 1975 Nov 20 # Dutch Guiana Time -3:30 - SRT 1984 Oct # Suriname Time -3:00 - SRT d1775 1 a1775 1 # Zone NAME GMTOFF RULES FORMAT [UNTIL] d1779 2 a1780 14 # These all agree with Trinidad and Tobago since 1970. Link America/Port_of_Spain America/Anguilla Link America/Port_of_Spain America/Dominica Link America/Port_of_Spain America/Grenada Link America/Port_of_Spain America/Guadeloupe Link America/Port_of_Spain America/Marigot # St Martin (French part) Link America/Port_of_Spain America/Montserrat Link America/Port_of_Spain America/St_Barthelemy # St Barthélemy Link America/Port_of_Spain America/St_Kitts # St Kitts & Nevis Link America/Port_of_Spain America/St_Lucia Link America/Port_of_Spain America/St_Thomas # Virgin Islands (US) Link America/Port_of_Spain America/St_Vincent Link America/Port_of_Spain America/Tortola # Virgin Islands (UK) d1784 42 a1825 4 # From Shanks & Pottenger: # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S # Whitman gives 1923 Oct 1; go with Shanks & Pottenger. Rule Uruguay 1923 only - Oct 2 0:00 0:30 HS d1827 61 a1887 13 Rule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS Rule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS # Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman. Rule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 - Rule Uruguay 1936 only - Nov 1 0:00 0:30 HS Rule Uruguay 1937 1941 - Mar lastSun 0:00 0 - # Whitman gives 1937 Oct 3; go with Shanks & Pottenger. Rule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS # Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13, # and 1943 Apr 13 "to present time"; go with Shanks & Pottenger. Rule Uruguay 1941 only - Aug 1 0:00 0:30 HS Rule Uruguay 1942 only - Jan 1 0:00 0 - Rule Uruguay 1942 only - Dec 14 0:00 1:00 S d1889 1 a1889 1 Rule Uruguay 1959 only - May 24 0:00 1:00 S d1891 1 a1891 1 Rule Uruguay 1960 only - Jan 17 0:00 1:00 S d1893 1 a1893 1 Rule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S d1895 52 a1946 22 Rule Uruguay 1966 1967 - Oct 31 0:00 0 - Rule Uruguay 1968 1970 - May 27 0:00 0:30 HS Rule Uruguay 1968 1970 - Dec 2 0:00 0 - Rule Uruguay 1972 only - Apr 24 0:00 1:00 S Rule Uruguay 1972 only - Aug 15 0:00 0 - Rule Uruguay 1974 only - Mar 10 0:00 0:30 HS Rule Uruguay 1974 only - Dec 22 0:00 1:00 S Rule Uruguay 1976 only - Oct 1 0:00 0 - Rule Uruguay 1977 only - Dec 4 0:00 1:00 S Rule Uruguay 1978 only - Apr 1 0:00 0 - Rule Uruguay 1979 only - Oct 1 0:00 1:00 S Rule Uruguay 1980 only - May 1 0:00 0 - Rule Uruguay 1987 only - Dec 14 0:00 1:00 S Rule Uruguay 1988 only - Mar 14 0:00 0 - Rule Uruguay 1988 only - Dec 11 0:00 1:00 S Rule Uruguay 1989 only - Mar 12 0:00 0 - Rule Uruguay 1989 only - Oct 29 0:00 1:00 S # Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2, # and that 1992/3's DST was from 10-25 to 03-01. Go with IATA. Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 - Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S Rule Uruguay 1992 only - Oct 18 0:00 1:00 S d1949 5 a1953 3 # The uruguayan government has decreed a change in the local time.... # http://www.presidencia.gub.uy/decretos/2004091502.htm Rule Uruguay 2004 only - Sep 19 0:00 1:00 S d1957 7 a1963 1 # http://www.presidencia.gub.uy/_Web/noticias/2005/03/2005031005.htm d1966 37 a2002 14 # http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005_00001.PDF # This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at # 02:00 local time, official time in Uruguay will be at GMT -2. Rule Uruguay 2005 only - Oct 9 2:00 1:00 S Rule Uruguay 2006 only - Mar 12 2:00 0 - # From Jesper Nørgaard Welen (2006-09-06): # http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDF Rule Uruguay 2006 max - Oct Sun>=1 2:00 1:00 S Rule Uruguay 2007 max - Mar Sun>=8 2:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28 -3:44:44 - MMT 1920 May 1 # Montevideo MT -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time -3:00 Uruguay UY%sT d2006 4 d2018 16 a2033 1 # Zone NAME GMTOFF RULES FORMAT [UNTIL] d2036 4 a2039 3 -4:30 - VET 1965 # Venezuela Time -4:00 - VET 2007 Dec 9 03:00 -4:30 - VET @ 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. d14 2 a15 2 # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94. # http://www.jstor.org/stable/1774359 d190 2 a191 2 # Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST # in Argentina from 2008-10-19 until 2009-03-15. d200 2 a201 3 # Press release 235 dated Saturday October 18th, from the Government of the # Province of Jujuy saying it will not apply DST either (even when it was not # included in Decree 1705/2008). d207 1 a207 2 # (an official .gob.ar) under title: "Sin Cambio de Hora" # (English: "No hour change"). d228 3 a230 3 # From Paul Eggert (2014-08-09): # Hora de verano para la República Argentina # http://buenasiembra.com.ar/esoterismo/astrologia/hora-de-verano-de-la-republica-argentina-27.html d303 1 a303 1 # The change is supposed to take place Monday the 21st at 0:00 d335 3 a337 3 # From Paul Eggert (2014-08-12): # Unless otherwise specified, data entries are from Shanks & Pottenger through # 1992, from the IATA otherwise. As noted below, Shanks & Pottenger say that d397 1 a397 1 # According to news reports from El Diario de la República Province San d417 1 a417 1 # http://es.wikipedia.org/wiki/Hora_oficial_argentina d430 2 a431 2 Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May # Córdoba Mean Time d581 2 a582 2 Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May # Córdoba Mean Time d593 2 a594 2 Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May # Córdoba Mean Time d688 1 a688 1 # a) The timezone UTC+5 is extinguished, with all the Acre state and the d725 2 a726 2 # Decretos sobre o Horário de Verão no Brasil. # http://pcdsh01.on.br/DecHV.html d989 1 a989 1 -4:00 - AMT 2008 Jun 24 0:00 d1044 1 a1044 1 -3:00 Brazil BR%sT 1963 Oct 23 0:00 d1085 1 a1085 1 -5:00 - ACT 2008 Jun 24 0:00 d1092 1 a1092 1 -5:00 - ACT 2008 Jun 24 0:00 d1120 2 a1121 2 # From Paul Eggert (2014-08-12): # The following data entries for Chile and America/Santiago are from d1123 1 a1123 1 # Jesper Nørgaard Welen. The data entries for Pacific/Easter are from Shanks d1125 1 a1125 1 # America/Santiago. The pre-1980 Pacific/Easter data entries are dubious, d1149 1 a1149 1 # From Arthur David Olson (2010-03-06): d1152 1 a1152 1 # From Glenn Eychaner (2011-03-02): d1253 1 a1253 1 -4:42:46 - SMT 1910 # Santiago Mean Time d1262 1 a1262 1 -7:00 Chile EAS%sT 1982 Mar 13 21:00 # Easter Time d1303 1 a1303 1 Zone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad d1328 1 a1328 1 -5:00 - ECT # Ecuador Time d1331 1 a1331 1 -6:00 - GALT # Galápagos Time d1430 2 a1431 2 -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time -4:00 Falk FK%sT 1983 May # Falkland Is Time d1433 1 a1433 1 -4:00 Falk FK%sT 2010 Sep 5 2:00 d1444 1 a1444 1 Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown d1481 2 a1482 2 # Noticias, a daily paper in Asunción, Paraguay (2000-10-01): # http://www.diarionoticias.com.py/011000/nacional/naciona1.htm d1509 1 a1509 1 # http://www.presidencia.gov.py/decretos/D1867.pdf d1541 1 a1541 1 -4:00 - PYT 1972 Oct # Paraguay Time d1574 1 a1574 1 Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken d1584 1 a1584 1 -3:40:36 - PMT 1945 Oct # The capital moved? d1586 1 a1586 1 -3:30 - SRT 1984 Oct # Suriname Time d1660 1 a1660 1 # The Uruguayan government has decreed a change in the local time.... d1680 2 a1681 2 -3:44:44 - MMT 1920 May 1 # Montevideo MT -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time d1697 2 a1698 2 -4:30 - VET 1965 # Venezuela Time -4:00 - VET 2007 Dec 9 3:00 @ 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 2 a10 3 # From Paul Eggert (2014-10-31): # # Unless otherwise specified, the source for data through 1990 is: d13 4 a16 1 # Unfortunately this book contains many errors and cites no sources. d22 1 a22 2 # of the IATA's data after 1990. Except where otherwise noted, # IATA SSIM is the source for entries after 1990. d24 2 a25 3 # For data circa 1899, a common source is: # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94. # http://www.jstor.org/stable/1774359 @ 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 @a1208 8 # From Eduardo Romero Urra (2015-03-03): # Today has been published officially that Chile will use the DST time # permanently until March 25 of 2017 # http://www.diariooficial.interior.gob.cl/media/2015/03/03/1-large.jpg # # From Paul Eggert (2015-03-03): # For now, assume that the extension will persist indefinitely. d1250 2 a1251 2 Rule Chile 2012 2015 - Apr Sun>=23 3:00u 0 - Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 S d1262 1 a1262 2 -4:00 Chile CL%sT 2015 Apr 26 3:00u -3:00 - CLT d1265 2 a1266 3 -7:00 Chile EAS%sT 1982 Mar 14 3:00u # Easter Time -6:00 Chile EAS%sT 2015 Apr 26 3:00u -5:00 - EAST a1598 1 Link America/Port_of_Spain America/Antigua @ 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 @d33 1 a33 1 # -- E O Cutler, _New York Times_ (1937-02-14), quoted in d134 1 a134 1 # ... The Law itself is "Ley No. 25155", sanctioned on 1999-08-25, enacted d178 7 a184 3 # From Juan Manuel Docile in https://bugs.gentoo.org/240339 (2008-10-07) # via Rodrigo Severo: # Argentinian law No. 25.155 is no longer valid. d186 1 a186 1 # The new one is law No. 26.350 d774 1 a774 1 # DECRETO No. 7.584, DE 13 DE OUTUBRO DE 2011 a1100 54 # From Paul Eggert (2015-04-03): # Shanks & Pottenger says America/Santiago introduced standard time in # 1890 and rounds its UTC offset to 70W40; guess that in practice this # was the same offset as in 1916-1919. It also says Pacific/Easter # standardized on 109W22 in 1890; assume this didn't change the clocks. # # Dates for America/Santiago from 1910 to 2004 are primarily from # the following source, cited by Oscar van Vlijmen (2006-10-08): # [1] Chile Law # http://www.webexhibits.org/daylightsaving/chile.html # This contains a copy of a this official table: # Cambios en la hora oficial de Chile desde 1900 (retrieved 2008-03-30) # http://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm # [1] needs several corrections, though. # # The first set of corrections is from: # [2] History of the Official Time of Chile # http://www.horaoficial.cl/ing/horaof_ing.html (retrieved 2012-03-06). See: # http://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html # This is an English translation of: # Historia de la hora oficial de Chile (retrieved 2012-10-24). See: # http://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm # A fancier Spanish version (requiring mouse-clicking) is at: # http://www.horaoficial.cl/historia_hora.html # Conflicts between [1] and [2] were resolved as follows: # # - [1] says the 1910 transition was Jan 1, [2] says Jan 10 and cites # Boletín No. 1, Aviso No. 1 (1910). Go with [2]. # # - [1] says SMT was -4:42:45, [2] says Chile's official time from # 1916 to 1919 was -4:42:46.3, the meridian of Chile's National # Astronomical Observatory (OAN), then located in what is now # Quinta Normal in Santiago. Go with [2], rounding it to -4:42:46. # # - [1] says the 1918 transition was Sep 1, [2] says Sep 10 and cites # Boletín No. 22, Aviso No. 129/1918 (1918-08-23). Go with [2]. # # - [1] does not give times for transitions; assume they occur # at midnight mainland time, the current common practice. However, # go with [2]'s specification of 23:00 for the 1947-05-21 transition. # # Another correction to [1] is from Jesper Nørgaard Welen, who # wrote (2006-10-08), "I think that there are some obvious mistakes in # the suggested link from Oscar van Vlijmen,... for instance entry 66 # says that GMT-4 ended 1990-09-12 while entry 67 only begins GMT-3 at # 1990-09-15 (they should have been 1990-09-15 and 1990-09-16 # respectively), but anyhow it clears up some doubts too." # # Data for Pacific/Easter from 1910 through 1967 come from Shanks & # Pottenger. After that, for lack of better info assume # Pacific/Easter is always two hours behind America/Santiago; # this is known to work for DST transitions starting in 2008 and # may well be true for earlier transitions. d1113 18 d1137 3 a1139 1 # d1141 2 d1148 1 d1150 2 d1155 14 d1170 1 d1172 1 d1176 2 a1177 1 # August, not in October as they have since 1968. d1183 2 a1184 1 # (to leave DST) from March 11 2012 to April 28th 2012.... d1217 3 d1221 1 a1221 1 Rule Chile 1927 1931 - Sep 1 0:00 1:00 S d1223 5 d1238 4 a1241 2 Rule Chile 1988 1990 - Mar Sun>=9 3:00u 0 - Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 S d1264 1 a1264 1 -4:42:46 - SMT 1910 Jan 10 # Santiago Mean Time d1266 4 a1269 10 -4:42:46 - SMT 1918 Sep 10 -4:00 - CLT 1919 Jul 1 -4:42:46 - SMT 1927 Sep 1 -5:00 Chile CL%sT 1932 Sep 1 -4:00 - CLT 1942 Jun 1 -5:00 - CLT 1942 Aug 1 -4:00 - CLT 1946 Jul 15 -4:00 1:00 CLST 1946 Sep 1 # central Chile -4:00 - CLT 1947 Apr 1 -5:00 - CLT 1947 May 21 23:00 d1272 1 a1272 1 Zone Pacific/Easter -7:17:28 - LMT 1890 a1281 19 # Antarctic base using South American rules # (See the file 'antarctica' for more.) # # Palmer, Anvers Island, since 1965 (moved 2 miles in 1968) # # From Ethan Dicks (1996-10-06): # It keeps the same time as Punta Arenas, Chile, because, just like us # and the South Pole, that's the other end of their supply line.... # I verified with someone who was there that since 1980, # Palmer has followed Chile. Prior to that, before the Falklands War, # Palmer used to be supplied from Argentina. # # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Antarctica/Palmer 0 - zzz 1965 -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1982 May -4:00 Chile CL%sT 2015 Apr 26 3:00u -3:00 - CLT d1510 1 a1510 1 # A decree was issued in Paraguay (No. 16350) on 2002-02-26 that changed the d1690 2 a1691 13 # # From Steffen Thorsen (2015-06-30): # ... it looks like they will not be using DST the coming summer: # http://www.elobservador.com.uy/gobierno-resolvio-que-no-habra-cambio-horario-verano-n656787 # http://www.republica.com.uy/este-ano-no-se-modificara-el-huso-horario-en-uruguay/523760/ # From Paul Eggert (2015-06-30): # Apparently restaurateurs complained that DST caused people to go to the beach # instead of out to dinner. # From Pablo Camargo (2015-07-13): # http://archivo.presidencia.gub.uy/sci/decretos/2015/06/cons_min_201.pdf # [dated 2015-06-29; repeals Decree 311/006 dated 2006-09-04] Rule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 S Rule Uruguay 2007 2015 - Mar Sun>=8 2:00 0 - a1699 4 # From Paul Eggert (2015-07-28): # For the 1965 transition see Gaceta Oficial No. 27.619 (1964-12-15), p 205.533 # http://www.pgr.gob.ve/dmdocuments/1964/27619.pdf # d1711 1 a1711 1 -4:30 - VET 1965 Jan 1 0:00 # Venezuela T. @ 1.1.1.1.4.4.4.1 log @Sync with netbsd-5 @ text @d413 1 a413 1 # Perhaps San Luis operates on the legal fiction that it is at -04 d415 1 a415 1 # just say it's at -03; see, for example, a1223 14 # From Juan Correa (2016-03-18): # The decree regarding DST has been published in today's Official Gazette: # http://www.diariooficial.interior.gob.cl/versiones-anteriores/do/20160318/ # http://www.leychile.cl/Navegar?idNorma=1088502 # It does consider the second Saturday of May and August as the dates # for the transition; and it lists DST dates until 2019, but I think # this scheme will stick. # # From Paul Eggert (2016-03-18): # For now, assume the pattern holds for the indefinite future. # The decree says transitions occur at 24:00; in practice this appears # to mean 24:00 mainland time, not 24:00 local time, so that Easter # Island is always two hours behind the mainland. d1255 1 a1255 1 Rule Chile 2012 2014 - Apr Sun>=23 3:00u 0 - a1256 2 Rule Chile 2016 max - May Sun>=9 3:00u 0 - Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 S d1273 2 a1274 1 -4:00 Chile CL%sT d1278 2 a1279 1 -6:00 Chile EAS%sT d1298 1 a1298 1 Zone Antarctica/Palmer 0 - -00 1965 d1301 2 a1302 1 -4:00 Chile CL%sT a1744 15 # From Alexander Krivenyshev (2016-04-15): # https://actualidad.rt.com/actualidad/204758-venezuela-modificar-huso-horario-sequia-elnino # # From Paul Eggert (2016-04-15): # Clocks advance 30 minutes on 2016-05-01 at 02:30.... # "'Venezuela's new time-zone: hours without light, hours without water, # hours of presidential broadcasts, hours of lines,' quipped comedian # Jean Mary Curró ...". See: Cawthorne A, Kai D. Venezuela scraps # half-hour time difference set by Chavez. Reuters 2016-04-15 14:50 -0400 # http://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE # # From Matt Johnson (2016-04-20): # ... published in the official Gazette [2016-04-18], here: # http://historico.tsj.gob.ve/gaceta_ext/abril/1842016/E-1842016-4551.pdf d1750 1 a1750 2 -4:30 - VET 2016 May 1 2:30 -4:00 - VET @ 1.1.1.1.4.4.4.2 log @Sync with netbsd-7-1-RELEASE @ text @d9 1 a9 1 # From Paul Eggert (2016-12-05): d16 2 a17 2 # Many years ago Gwillim Law wrote that a good source # for time zone data was the International Air Transport d27 26 a52 4 # These tables use numeric abbreviations like -03 and -0330 for # integer hour and minute UTC offsets. Although earlier editions used # alphabetic time zone abbreviations, these abbreviations were # invented and did not reflect common practice. d387 6 d431 5 a435 5 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 d449 7 a455 7 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 d460 8 a467 8 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d472 9 a480 9 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 13 -3:00 Arg -03/-02 d485 10 a494 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 1 -4:00 - -04 1991 May 7 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d499 10 a508 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 1 -4:00 - -04 1991 May 7 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 31 -4:00 - -04 2004 Jul 25 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d513 11 a523 11 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 Mar 4 -4:00 - -04 1990 Oct 28 -4:00 1:00 -03 1991 Mar 17 -4:00 - -04 1991 Oct 6 -3:00 1:00 -02 1992 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d528 10 a537 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d542 14 a555 14 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 Mar 4 -4:00 - -04 1990 Oct 15 -4:00 1:00 -03 1991 Mar 1 -4:00 - -04 1991 Oct 15 -4:00 1:00 -03 1992 Mar 1 -4:00 - -04 1992 Oct 18 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 23 -4:00 - -04 2004 Sep 26 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d564 14 a577 14 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 -3:00 1:00 -02 1990 Mar 14 -4:00 - -04 1990 Oct 15 -4:00 1:00 -03 1991 Mar 1 -4:00 - -04 1991 Jun 1 -3:00 - -03 1999 Oct 3 -4:00 1:00 -03 2000 Mar 3 -3:00 - -03 2004 May 31 -4:00 - -04 2004 Jul 25 -3:00 Arg -03/-02 2008 Jan 21 -4:00 SanLuis -04/-03 2009 Oct 11 -3:00 - -03 d581 9 a589 9 -4:16:48 - CMT 1920 May -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d593 9 a601 9 -4:16:48 - CMT 1920 May -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 30 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d611 1 a611 1 -4:00 - -04 d963 6 a968 6 -2:00 Brazil -02/-01 1990 Sep 17 -2:00 - -02 1999 Sep 30 -2:00 Brazil -02/-01 2000 Oct 15 -2:00 - -02 2001 Sep 13 -2:00 Brazil -02/-01 2002 Oct 1 -2:00 - -02 d981 2 a982 2 -3:00 Brazil -03/-02 1988 Sep 12 -3:00 - -03 d987 3 a989 3 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 2008 Jun 24 0:00 -3:00 - -03 d994 6 a999 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 22 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1003 6 a1008 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 15 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1012 6 a1017 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1995 Sep 14 -3:00 Brazil -03/-02 2003 Sep 24 -3:00 - -03 2012 Oct 21 -3:00 Brazil -03/-02 2013 Sep -3:00 - -03 d1021 8 a1028 8 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1995 Oct 13 -3:00 Brazil -03/-02 1996 Sep 4 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 22 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1034 4 a1037 4 -3:00 Brazil -03/-02 2003 Sep 24 -3:00 - -03 2011 Oct 16 -3:00 Brazil -03/-02 2012 Oct 21 -3:00 - -03 d1043 3 a1045 3 -3:00 Brazil -03/-02 1963 Oct 23 0:00 -3:00 1:00 -02 1964 -3:00 Brazil -03/-02 d1049 1 a1049 1 -4:00 Brazil -04/-03 d1053 3 a1055 3 -4:00 Brazil -04/-03 2003 Sep 24 -4:00 - -04 2004 Oct 1 -4:00 Brazil -04/-03 d1059 2 a1060 2 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 d1064 4 a1067 4 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 1999 Sep 30 -4:00 Brazil -04/-03 2000 Oct 15 -4:00 - -04 d1073 4 a1076 4 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 1993 Sep 28 -4:00 Brazil -04/-03 1994 Sep 22 -4:00 - -04 d1081 6 a1086 6 -5:00 Brazil -05/-04 1988 Sep 12 -5:00 - -05 1993 Sep 28 -5:00 Brazil -05/-04 1994 Sep 22 -5:00 - -05 2008 Jun 24 0:00 -4:00 - -04 2013 Nov 10 -5:00 - -05 d1090 4 a1093 4 -5:00 Brazil -05/-04 1988 Sep 12 -5:00 - -05 2008 Jun 24 0:00 -4:00 - -04 2013 Nov 10 -5:00 - -05 a1237 12 # From Juan Correa (2016-12-04): # Magallanes region ... will keep DST (UTC -3) all year round.... # http://www.soychile.cl/Santiago/Sociedad/2016/12/04/433428/Bachelet-firmo-el-decreto-para-establecer-un-horario-unico-para-la-Region-de-Magallanes.aspx # # From Deborah Goldsmith (2017-01-19): # http://www.diariooficial.interior.gob.cl/publicaciones/2017/01/17/41660/01/1169626.pdf # From Paul Eggert (2017-01-19): # The above says the Magallanes change expires 2019-05-11 at 24:00, # so in theory, they will revert to -04/-03 after that, which means # they will switch from -03 to -04 one hour after Santiago does that day. # For now, assume that they will not revert. d1278 1 a1278 1 -5:00 - -05 1916 Jul 1 d1280 1 a1280 1 -4:00 - -04 1919 Jul 1 d1282 8 a1289 21 -5:00 Chile -05/-04 1932 Sep 1 -4:00 - -04 1942 Jun 1 -5:00 - -05 1942 Aug 1 -4:00 - -04 1946 Jul 15 -4:00 1:00 -03 1946 Sep 1 # central Chile -4:00 - -04 1947 Apr 1 -5:00 - -05 1947 May 21 23:00 -4:00 Chile -04/-03 Zone America/Punta_Arenas -4:43:40 - LMT 1890 -4:42:46 - SMT 1910 Jan 10 -5:00 - -05 1916 Jul 1 -4:42:46 - SMT 1918 Sep 10 -4:00 - -04 1919 Jul 1 -4:42:46 - SMT 1927 Sep 1 -5:00 Chile -05/-04 1932 Sep 1 -4:00 - -04 1942 Jun 1 -5:00 - -05 1942 Aug 1 -4:00 - -04 1947 Apr 1 -5:00 - -05 1947 May 21 23:00 -4:00 Chile -04/-03 2016 Dec 4 -3:00 - -03 d1292 2 a1293 2 -7:00 Chile -07/-06 1982 Mar 14 3:00u # Easter Time -6:00 Chile -06/-05 d1313 3 a1315 4 -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1982 May -4:00 Chile -04/-03 2016 Dec 4 -3:00 - -03 d1328 1 a1328 1 -5:00 CO -05/-04 d1352 1 a1352 1 -4:30 - -0430 1965 d1367 5 a1371 18 # From Alois Treindl (2016-12-15): # http://www.elcomercio.com/actualidad/hora-sixto-1993.html # ... Whether the law applied also to Galápagos, I do not know. # From Paul Eggert (2016-12-15): # http://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html # This says President Sixto Durán Ballén signed decree No. 285, which # established DST from 1992-11-28 to 1993-02-05; it does not give transition # times. The people called it "hora de Sixto" ("Sixto hour"). The change did # not go over well; a popular song "Qué hora es" by Jaime Guevara had lyrics # that included "Amanecía en mitad de la noche, los guaguas iban a clase sin # sol" ("It was dawning in the middle of the night, the buses went to class # without sun"). Although Ballén's campaign slogan was "Ni un paso atrás" # (Not one step back), the clocks went back in 1993 and the experiment was not # repeated. For now, assume transitions were at 00:00 local time country-wide. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Ecuador 1992 only - Nov 28 0:00 1:00 S Rule Ecuador 1993 only - Feb 5 0:00 0 - d1376 1 a1376 1 -5:00 Ecuador -05/-04 d1378 2 a1379 2 -5:00 - -05 1986 -6:00 Ecuador -06/-05 d1479 4 a1482 4 -4:00 Falk -04/-03 1983 May -3:00 Falk -03/-02 1985 Sep 15 -4:00 Falk -04/-03 2010 Sep 5 2:00 -3:00 - -03 d1487 2 a1488 2 -4:00 - -04 1967 Oct -3:00 - -03 d1493 3 a1495 2 -3:45 - -0345 1975 Jul 31 -3:00 - -03 1991 d1497 1 a1497 1 -4:00 - -04 d1589 3 a1591 3 -4:00 - -04 1972 Oct -3:00 - -03 1974 Apr -4:00 Para -04/-03 d1618 1 a1618 1 -5:00 Peru -05/-04 d1623 1 a1623 1 -2:00 - -02 d1633 3 a1635 2 -3:30 - -0330 1984 Oct -3:00 - -03 d1738 1 a1738 2 # This Zone can be simplified once we assume zic %z. d1741 2 a1742 6 -3:30 Uruguay -0330/-03 1942 Dec 14 -3:00 Uruguay -03/-02 1968 -3:00 Uruguay -03/-0230 1971 -3:00 Uruguay -03/-02 1974 -3:00 Uruguay -03/-0230 1974 Dec 22 -3:00 Uruguay -03/-02 d1776 4 a1779 4 -4:30 - -0430 1965 Jan 1 0:00 -4:00 - -04 2007 Dec 9 3:00 -4:30 - -0430 2016 May 1 2:30 -4:00 - -04 @ 1.1.1.1.4.5 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 @d413 1 a413 1 # Perhaps San Luis operates on the legal fiction that it is at -04 d415 1 a415 1 # just say it's at -03; see, for example, a1223 14 # From Juan Correa (2016-03-18): # The decree regarding DST has been published in today's Official Gazette: # http://www.diariooficial.interior.gob.cl/versiones-anteriores/do/20160318/ # http://www.leychile.cl/Navegar?idNorma=1088502 # It does consider the second Saturday of May and August as the dates # for the transition; and it lists DST dates until 2019, but I think # this scheme will stick. # # From Paul Eggert (2016-03-18): # For now, assume the pattern holds for the indefinite future. # The decree says transitions occur at 24:00; in practice this appears # to mean 24:00 mainland time, not 24:00 local time, so that Easter # Island is always two hours behind the mainland. d1255 1 a1255 1 Rule Chile 2012 2014 - Apr Sun>=23 3:00u 0 - a1256 2 Rule Chile 2016 max - May Sun>=9 3:00u 0 - Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 S d1273 2 a1274 1 -4:00 Chile CL%sT d1278 2 a1279 1 -6:00 Chile EAS%sT d1298 1 a1298 1 Zone Antarctica/Palmer 0 - -00 1965 d1301 2 a1302 1 -4:00 Chile CL%sT a1744 15 # From Alexander Krivenyshev (2016-04-15): # https://actualidad.rt.com/actualidad/204758-venezuela-modificar-huso-horario-sequia-elnino # # From Paul Eggert (2016-04-15): # Clocks advance 30 minutes on 2016-05-01 at 02:30.... # "'Venezuela's new time-zone: hours without light, hours without water, # hours of presidential broadcasts, hours of lines,' quipped comedian # Jean Mary Curró ...". See: Cawthorne A, Kai D. Venezuela scraps # half-hour time difference set by Chavez. Reuters 2016-04-15 14:50 -0400 # http://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE # # From Matt Johnson (2016-04-20): # ... published in the official Gazette [2016-04-18], here: # http://historico.tsj.gob.ve/gaceta_ext/abril/1842016/E-1842016-4551.pdf d1750 1 a1750 2 -4:30 - VET 2016 May 1 2:30 -4:00 - VET @ 1.1.1.1.4.6 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 (2016-12-05): d16 2 a17 2 # Many years ago Gwillim Law wrote that a good source # for time zone data was the International Air Transport d27 26 a52 4 # These tables use numeric abbreviations like -03 and -0330 for # integer hour and minute UTC offsets. Although earlier editions used # alphabetic time zone abbreviations, these abbreviations were # invented and did not reflect common practice. d387 6 d431 5 a435 5 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 d449 7 a455 7 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 d460 8 a467 8 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d472 9 a480 9 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 13 -3:00 Arg -03/-02 d485 10 a494 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 1 -4:00 - -04 1991 May 7 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d499 10 a508 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 1 -4:00 - -04 1991 May 7 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 31 -4:00 - -04 2004 Jul 25 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d513 11 a523 11 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 Mar 4 -4:00 - -04 1990 Oct 28 -4:00 1:00 -03 1991 Mar 17 -4:00 - -04 1991 Oct 6 -3:00 1:00 -02 1992 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d528 10 a537 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d542 14 a555 14 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 Mar 4 -4:00 - -04 1990 Oct 15 -4:00 1:00 -03 1991 Mar 1 -4:00 - -04 1991 Oct 15 -4:00 1:00 -03 1992 Mar 1 -4:00 - -04 1992 Oct 18 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 23 -4:00 - -04 2004 Sep 26 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d564 14 a577 14 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 -3:00 1:00 -02 1990 Mar 14 -4:00 - -04 1990 Oct 15 -4:00 1:00 -03 1991 Mar 1 -4:00 - -04 1991 Jun 1 -3:00 - -03 1999 Oct 3 -4:00 1:00 -03 2000 Mar 3 -3:00 - -03 2004 May 31 -4:00 - -04 2004 Jul 25 -3:00 Arg -03/-02 2008 Jan 21 -4:00 SanLuis -04/-03 2009 Oct 11 -3:00 - -03 d581 9 a589 9 -4:16:48 - CMT 1920 May -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d593 9 a601 9 -4:16:48 - CMT 1920 May -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 30 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d611 1 a611 1 -4:00 - -04 d963 6 a968 6 -2:00 Brazil -02/-01 1990 Sep 17 -2:00 - -02 1999 Sep 30 -2:00 Brazil -02/-01 2000 Oct 15 -2:00 - -02 2001 Sep 13 -2:00 Brazil -02/-01 2002 Oct 1 -2:00 - -02 d981 2 a982 2 -3:00 Brazil -03/-02 1988 Sep 12 -3:00 - -03 d987 3 a989 3 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 2008 Jun 24 0:00 -3:00 - -03 d994 6 a999 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 22 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1003 6 a1008 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 15 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1012 6 a1017 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1995 Sep 14 -3:00 Brazil -03/-02 2003 Sep 24 -3:00 - -03 2012 Oct 21 -3:00 Brazil -03/-02 2013 Sep -3:00 - -03 d1021 8 a1028 8 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1995 Oct 13 -3:00 Brazil -03/-02 1996 Sep 4 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 22 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1034 4 a1037 4 -3:00 Brazil -03/-02 2003 Sep 24 -3:00 - -03 2011 Oct 16 -3:00 Brazil -03/-02 2012 Oct 21 -3:00 - -03 d1043 3 a1045 3 -3:00 Brazil -03/-02 1963 Oct 23 0:00 -3:00 1:00 -02 1964 -3:00 Brazil -03/-02 d1049 1 a1049 1 -4:00 Brazil -04/-03 d1053 3 a1055 3 -4:00 Brazil -04/-03 2003 Sep 24 -4:00 - -04 2004 Oct 1 -4:00 Brazil -04/-03 d1059 2 a1060 2 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 d1064 4 a1067 4 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 1999 Sep 30 -4:00 Brazil -04/-03 2000 Oct 15 -4:00 - -04 d1073 4 a1076 4 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 1993 Sep 28 -4:00 Brazil -04/-03 1994 Sep 22 -4:00 - -04 d1081 6 a1086 6 -5:00 Brazil -05/-04 1988 Sep 12 -5:00 - -05 1993 Sep 28 -5:00 Brazil -05/-04 1994 Sep 22 -5:00 - -05 2008 Jun 24 0:00 -4:00 - -04 2013 Nov 10 -5:00 - -05 d1090 4 a1093 4 -5:00 Brazil -05/-04 1988 Sep 12 -5:00 - -05 2008 Jun 24 0:00 -4:00 - -04 2013 Nov 10 -5:00 - -05 a1237 12 # From Juan Correa (2016-12-04): # Magallanes region ... will keep DST (UTC -3) all year round.... # http://www.soychile.cl/Santiago/Sociedad/2016/12/04/433428/Bachelet-firmo-el-decreto-para-establecer-un-horario-unico-para-la-Region-de-Magallanes.aspx # # From Deborah Goldsmith (2017-01-19): # http://www.diariooficial.interior.gob.cl/publicaciones/2017/01/17/41660/01/1169626.pdf # From Paul Eggert (2017-01-19): # The above says the Magallanes change expires 2019-05-11 at 24:00, # so in theory, they will revert to -04/-03 after that, which means # they will switch from -03 to -04 one hour after Santiago does that day. # For now, assume that they will not revert. d1278 1 a1278 1 -5:00 - -05 1916 Jul 1 d1280 1 a1280 1 -4:00 - -04 1919 Jul 1 d1282 8 a1289 21 -5:00 Chile -05/-04 1932 Sep 1 -4:00 - -04 1942 Jun 1 -5:00 - -05 1942 Aug 1 -4:00 - -04 1946 Jul 15 -4:00 1:00 -03 1946 Sep 1 # central Chile -4:00 - -04 1947 Apr 1 -5:00 - -05 1947 May 21 23:00 -4:00 Chile -04/-03 Zone America/Punta_Arenas -4:43:40 - LMT 1890 -4:42:46 - SMT 1910 Jan 10 -5:00 - -05 1916 Jul 1 -4:42:46 - SMT 1918 Sep 10 -4:00 - -04 1919 Jul 1 -4:42:46 - SMT 1927 Sep 1 -5:00 Chile -05/-04 1932 Sep 1 -4:00 - -04 1942 Jun 1 -5:00 - -05 1942 Aug 1 -4:00 - -04 1947 Apr 1 -5:00 - -05 1947 May 21 23:00 -4:00 Chile -04/-03 2016 Dec 4 -3:00 - -03 d1292 2 a1293 2 -7:00 Chile -07/-06 1982 Mar 14 3:00u # Easter Time -6:00 Chile -06/-05 d1313 3 a1315 4 -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1982 May -4:00 Chile -04/-03 2016 Dec 4 -3:00 - -03 d1328 1 a1328 1 -5:00 CO -05/-04 d1352 1 a1352 1 -4:30 - -0430 1965 d1367 5 a1371 18 # From Alois Treindl (2016-12-15): # http://www.elcomercio.com/actualidad/hora-sixto-1993.html # ... Whether the law applied also to Galápagos, I do not know. # From Paul Eggert (2016-12-15): # http://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html # This says President Sixto Durán Ballén signed decree No. 285, which # established DST from 1992-11-28 to 1993-02-05; it does not give transition # times. The people called it "hora de Sixto" ("Sixto hour"). The change did # not go over well; a popular song "Qué hora es" by Jaime Guevara had lyrics # that included "Amanecía en mitad de la noche, los guaguas iban a clase sin # sol" ("It was dawning in the middle of the night, the buses went to class # without sun"). Although Ballén's campaign slogan was "Ni un paso atrás" # (Not one step back), the clocks went back in 1993 and the experiment was not # repeated. For now, assume transitions were at 00:00 local time country-wide. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Ecuador 1992 only - Nov 28 0:00 1:00 S Rule Ecuador 1993 only - Feb 5 0:00 0 - d1376 1 a1376 1 -5:00 Ecuador -05/-04 d1378 2 a1379 2 -5:00 - -05 1986 -6:00 Ecuador -06/-05 d1479 4 a1482 4 -4:00 Falk -04/-03 1983 May -3:00 Falk -03/-02 1985 Sep 15 -4:00 Falk -04/-03 2010 Sep 5 2:00 -3:00 - -03 d1487 2 a1488 2 -4:00 - -04 1967 Oct -3:00 - -03 d1493 3 a1495 2 -3:45 - -0345 1975 Jul 31 -3:00 - -03 1991 d1497 1 a1497 1 -4:00 - -04 d1589 3 a1591 3 -4:00 - -04 1972 Oct -3:00 - -03 1974 Apr -4:00 Para -04/-03 d1618 1 a1618 1 -5:00 Peru -05/-04 d1623 1 a1623 1 -2:00 - -02 d1633 3 a1635 2 -3:30 - -0330 1984 Oct -3:00 - -03 d1738 1 a1738 2 # This Zone can be simplified once we assume zic %z. d1741 2 a1742 6 -3:30 Uruguay -0330/-03 1942 Dec 14 -3:00 Uruguay -03/-02 1968 -3:00 Uruguay -03/-0230 1971 -3:00 Uruguay -03/-02 1974 -3:00 Uruguay -03/-0230 1974 Dec 22 -3:00 Uruguay -03/-02 d1776 4 a1779 4 -4:30 - -0430 1965 Jan 1 0:00 -4:00 - -04 2007 Dec 9 3:00 -4:30 - -0430 2016 May 1 2:30 -4:00 - -04 @ 1.1.1.1.4.6.2.1 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 @d25 1 a25 1 # https://www.jstor.org/stable/1774359 d268 2 a269 2 # https://www.lagaceta.com.ar/nota/253414/Economia/Es-inminente-que-en-San-Luis-atrasen-una-hora-los-relojes.html # http://www.worldtimezone.com/dst_news/dst_news_argentina02.html d388 1 a388 1 # https://es.wikipedia.org/wiki/Hora_oficial_argentina d719 1 a719 1 # https://www.timeanddate.com/news/time/brazil-dst-2008-2009.html d728 1 a728 1 # https://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html d754 1 a754 1 # https://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html d760 1 a760 1 # https://www.timeanddate.com/news/time/brazil-starts-dst-2013.html d763 1 a763 1 # https://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html d1079 1 a1079 1 # This contains a copy of this official table: d1081 1 a1081 1 # https://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm d1087 1 a1087 1 # https://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html d1090 1 a1090 1 # https://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm d1366 1 a1366 1 # https://www.elcomercio.com/actualidad/hora-sixto-1993.html d1369 1 a1369 1 # https://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html d1781 1 a1781 1 # https://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE @ 1.1.1.1.4.6.2.2 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 @d28 1 a28 1 # integer hour and minute UT offsets. Although earlier editions used d50 1 a50 1 Rule Arg 1930 only - Dec 1 0:00 1:00 - d52 1 a52 1 Rule Arg 1931 only - Oct 15 0:00 1:00 - d54 2 a55 2 Rule Arg 1932 1939 - Nov 1 0:00 1:00 - Rule Arg 1940 only - Jul 1 0:00 1:00 - d57 1 a57 1 Rule Arg 1941 only - Oct 15 0:00 1:00 - d59 1 a59 1 Rule Arg 1943 only - Oct 15 0:00 1:00 - d61 1 a61 1 Rule Arg 1946 only - Oct 1 0:00 1:00 - d63 1 a63 1 Rule Arg 1963 only - Dec 15 0:00 1:00 - d65 1 a65 1 Rule Arg 1964 1966 - Oct 15 0:00 1:00 - d67 1 a67 1 Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 - d69 1 a69 1 Rule Arg 1974 only - Jan 23 0:00 1:00 - d71 1 a71 1 Rule Arg 1988 only - Dec 1 0:00 1:00 - d79 1 a79 1 Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 - d90 1 a90 1 Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 - d193 1 a193 1 Rule Arg 2007 only - Dec 30 0:00 1:00 - d195 1 a195 1 Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 - d205 1 a205 1 # From Paul Eggert (2018-01-31): d210 1 a210 3 # over Shanks & Pottenger. It is upward compatible with Milne, who # says Córdoba time was -4:16:48.2. d384 1 a384 1 # From Paul Eggert (2018-01-23): d386 1 a386 1 # with perpetual daylight saving time, but ordinary usage typically seems to d395 3 d532 1 a532 1 Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 - d582 1 a582 1 -4:32:36 1:00 BST 1932 Mar 21 # Bolivia ST d774 1 a774 1 Rule Brazil 1931 only - Oct 3 11:00 1:00 - d776 1 a776 1 Rule Brazil 1932 only - Oct 3 0:00 1:00 - d781 1 a781 1 Rule Brazil 1949 1952 - Dec 1 0:00 1:00 - d793 1 a793 1 Rule Brazil 1963 only - Dec 9 0:00 1:00 - d798 1 a798 1 Rule Brazil 1965 only - Jan 31 0:00 1:00 - d801 1 a801 1 Rule Brazil 1965 only - Dec 1 0:00 1:00 - d804 1 a804 1 Rule Brazil 1966 1967 - Nov 1 0:00 1:00 - d808 1 a808 1 Rule Brazil 1985 only - Nov 2 0:00 1:00 - d813 1 a813 1 Rule Brazil 1986 only - Oct 25 0:00 1:00 - d816 1 a816 1 Rule Brazil 1987 only - Oct 25 0:00 1:00 - d820 1 a820 1 Rule Brazil 1988 only - Oct 16 0:00 1:00 - d824 1 a824 1 Rule Brazil 1989 only - Oct 15 0:00 1:00 - d829 1 a829 1 Rule Brazil 1990 only - Oct 21 0:00 1:00 - d833 1 a833 1 Rule Brazil 1991 only - Oct 20 0:00 1:00 - d837 1 a837 1 Rule Brazil 1992 only - Oct 25 0:00 1:00 - d847 1 a847 1 Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 - d852 1 a852 1 Rule Brazil 1996 only - Oct 6 0:00 1:00 - d862 1 a862 1 Rule Brazil 1997 only - Oct 6 0:00 1:00 - d868 1 a868 1 Rule Brazil 1998 only - Oct 11 0:00 1:00 - d874 1 a874 1 Rule Brazil 1999 only - Oct 3 0:00 1:00 - d884 1 a884 1 Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 - d888 1 a888 1 Rule Brazil 2002 only - Nov 3 0:00 1:00 - d891 1 a891 1 Rule Brazil 2003 only - Oct 19 0:00 1:00 - d894 1 a894 1 Rule Brazil 2004 only - Nov 2 0:00 1:00 - d897 1 a897 1 Rule Brazil 2005 only - Oct 16 0:00 1:00 - d900 1 a900 1 Rule Brazil 2006 only - Nov 5 0:00 1:00 - d904 1 a904 1 Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 - d911 1 a911 1 Rule Brazil 2008 2017 - Oct Sun>=15 0:00 1:00 - a912 2 # Decree 7,584 (2011-10-13) # added Bahia. a913 4 # Decree 7,826 (2012-10-15) # removed Bahia and added Tocantins. # Decree 8,112 (2013-09-30) # removed Tocantins. a916 7 # From Steffen Thorsen (2017-12-18): # According to many media sources, next year's DST start in Brazil will move to # the first Sunday of November, and it will stay like that for the years after. # ... https://www.timeanddate.com/news/time/brazil-delays-dst-2018.html # From Steffen Thorsen (2017-12-20): # http://www.planalto.gov.br/ccivil_03/_ato2015-2018/2017/decreto/D9242.htm Rule Brazil 2018 max - Nov Sun>=1 0:00 1:00 - d1071 1 a1071 1 # 1890 and rounds its UT offset to 70W40; guess that in practice this d1223 1 a1223 1 Rule Chile 1927 1931 - Sep 1 0:00 1:00 - d1225 1 a1225 1 Rule Chile 1968 only - Nov 3 4:00u 1:00 - d1227 1 a1227 1 Rule Chile 1969 only - Nov 23 4:00u 1:00 - d1230 1 a1230 1 Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 - d1232 2 a1233 2 Rule Chile 1973 only - Sep 30 4:00u 1:00 - Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 - d1236 2 a1237 2 Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 - Rule Chile 1990 only - Sep 16 4:00u 1:00 - d1239 1 a1239 1 Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 - d1242 1 a1242 1 Rule Chile 1998 only - Sep 27 4:00u 1:00 - d1244 1 a1244 1 Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 - d1252 1 a1252 1 Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 - d1254 1 a1254 1 Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 - d1256 1 a1256 1 Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 - d1321 1 a1321 1 Rule CO 1992 only - May 3 0:00 1:00 - d1381 1 a1381 1 Rule Ecuador 1992 only - Nov 28 0:00 1:00 - d1471 1 a1471 1 # For now we will assume permanent -03 for the Falklands d1475 1 a1475 1 Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 - d1477 2 a1478 2 Rule Falk 1939 only - Oct 1 0:00 1:00 - Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 - d1480 1 a1480 1 Rule Falk 1983 only - Sep lastSun 0:00 1:00 - d1482 2 a1483 2 Rule Falk 1984 only - Sep 16 0:00 1:00 - Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 - d1486 1 a1486 1 Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 - d1521 1 a1521 1 Rule Para 1975 1988 - Oct 1 0:00 1:00 - d1524 3 a1526 3 Rule Para 1989 only - Oct 22 0:00 1:00 - Rule Para 1990 only - Oct 1 0:00 1:00 - Rule Para 1991 only - Oct 6 0:00 1:00 - d1528 1 a1528 1 Rule Para 1992 only - Oct 5 0:00 1:00 - d1530 1 a1530 1 Rule Para 1993 1995 - Oct 1 0:00 1:00 - d1548 1 a1548 1 Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 - d1559 1 a1559 1 Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 - d1568 1 a1568 1 Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 - d1581 1 a1581 1 Rule Para 2010 max - Oct Sun>=1 0:00 1:00 - d1614 1 a1614 1 Rule Peru 1938 only - Jan 1 0:00 1:00 - d1616 1 a1616 1 Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 - d1618 1 a1618 1 Rule Peru 1986 1987 - Jan 1 0:00 1:00 - d1620 1 a1620 1 Rule Peru 1990 only - Jan 1 0:00 1:00 - d1623 1 a1623 1 Rule Peru 1994 only - Jan 1 0:00 1:00 - d1669 1 a1669 40 # # From Tim Parenti (2018-02-20), per Jeremie Bonjour (2018-01-31) and Michael # Deckers (2018-02-20): # ... At least they kept good records... # # http://www.armada.mil.uy/ContenidosPDFs/sohma/web/almanaque/almanaque_2018.pdf#page=36 # Page 36 of Almanaque 2018, published by the Oceanography, Hydrography, and # Meteorology Service of the Uruguayan Navy, seems to give many transitions # with greater clarity than we've had before. It directly references many laws # and decrees which are, in turn, referenced below. They can be viewed in the # public archives of the Diario Oficial (in Spanish) at # http://www.impo.com.uy/diariooficial/ # # Ley No. 3920 of 1908-06-10 placed the determination of legal time under the # auspices of the National Institute for the Prediction of Time. It is unclear # exactly what offset was used during this period, though Ley No. 7200 of # 1920-04-23 used the Observatory of the National Meteorological Institute in # Montevideo (34° 54' 33" S, 56° 12' 45" W) as its reference meridian, # retarding legal time by 15 minutes 9 seconds from 1920-04-30 24:00, # resulting in UT-04. Assume the corresponding LMT of UT-03:44:51 (given on # page 725 of the Proceedings of the Second Pan-American Scientific Congress, # 1915-1916) was in use, and merely became official from 1908-06-10. # https://www.impo.com.uy/diariooficial/1908/06/18/12 # https://www.impo.com.uy/diariooficial/1920/04/27/9 # # Ley No. 7594 of 1923-06-28 specified legal time as Observatory time advanced # by 44 minutes 51 seconds (UT-03) "from 30 September to 31 March", and by 14 # minutes 51 seconds (UT-03:30) "the rest of the year"; a message from the # National Council of Administration the same day, published directly below the # law in the Diario Oficial, specified the first transition to be 1923-09-30 # 24:00. This effectively established standard time at UT-03:30 with 30 # minutes DST. Assume transitions at 24:00 on the specified days until Ley No. # 7919 of 1926-03-05 ended this arrangement, repealing all "laws and other # provisions which oppose" it, resulting in year-round UT-03:30; a Resolución # of 1926-03-11 puts the final transition at 1926-03-31 24:00, the same as it # would have been under the previous law. # https://www.impo.com.uy/diariooficial/1923/07/02/2 # https://www.impo.com.uy/diariooficial/1926/03/10/2 # https://www.impo.com.uy/diariooficial/1926/03/18/2 # d1671 2 a1672 1 Rule Uruguay 1923 1925 - Oct 1 0:00 0:30 - d1674 13 a1686 61 # From Tim Parenti (2018-02-15): # http://www.impo.com.uy/diariooficial/1933/10/27/6 # # It appears Ley No. 9122 of 1933 was never published as such in the Diario # Oficial, but instead appeared as Document 26 in the Diario on Friday # 1933-10-27 as a decree made Monday 1933-10-23 and filed under the Ministry of # National Defense. It reinstituted a DST of 30 minutes (to UT-03) "from the # last Sunday of October...until the last Saturday of March." In accordance # with this provision, the first transition was explicitly specified in Article # 2 of the decree as Saturday 1933-10-28 at 24:00; that is, Sunday 1933-10-29 # at 00:00. Assume transitions at 00:00 Sunday throughout. # # Departing from the matter-of-fact nature of previous timekeeping laws, the # 1933 decree "consider[s] the advantages of...the advance of legal time": # # "Whereas: The measure adopted by almost all nations at the time of the last # World War still persists in North America and Europe, precisely because of # the economic, hygienic, and social advantages derived from such an # emergency measure... # # Whereas: The advance of the legal time during the summer seasons, by # displacing social activity near sunrise, favors the citizen populations # and especially the society that creates and works..." # # It further specified that "necessary measures" be taken to ensure that # "public spectacles finish, in general, before [01:00]." Rule Uruguay 1933 1938 - Oct lastSun 0:00 0:30 - Rule Uruguay 1934 1941 - Mar lastSat 24:00 0 - # From Tim Parenti (2018-02-15): # Most of the Rules below, and their contemporaneous Zone lines, have been # updated simply to match the Almanaque 2018. Although the document does not # list exact transition times, midnight transitions were already present in our # data here for all transitions through 2004-09, and this is both consistent # with prior transitions and verified in several decrees marked below between # 1939-09 and 2004-09, wherein the relevant text was typically of the form: # # "From 0 hours on [date], the legal time of the entire Republic will be... # # In accordance with [the preceding], on [previous date] at 24 hours, all # clocks throughout the Republic will be [advanced/retarded] by..." # # It is possible that there is greater specificity to be found for the Rules # below, but it is buried in no fewer than 40 different decrees individually # referenced by the Almanaque for the period from 1939-09 to 2014-09. # Four-fifths of these were promulgated less than two weeks before taking # effect; more than half within a week and none more than 5 weeks. Only the # handful with comments below have been checked with any thoroughness. Rule Uruguay 1939 only - Oct 1 0:00 0:30 - Rule Uruguay 1940 only - Oct 27 0:00 0:30 - # From Tim Parenti (2018-02-15): # Decreto 1145 of the Ministry of National Defense, dated 1941-07-26, specified # UT-03 from Friday 1941-08-01 00:00, citing an "urgent...need to save fuel". # http://www.impo.com.uy/diariooficial/1941/08/04/1 Rule Uruguay 1941 only - Aug 1 0:00 0:30 - # From Tim Parenti (2018-02-15): # Decreto 1866 of the Ministry of National Defense, dated 1942-12-09, specified # further advancement (to UT-02:30) from Sunday 1942-12-13 24:00. Since clocks # never went back to UT-03:30 thereafter, this is modeled as advancing standard # time by 30 minutes to UT-03, while retaining 30 minutes of DST. # http://www.impo.com.uy/diariooficial/1942/12/16/3 Rule Uruguay 1942 only - Dec 14 0:00 0:30 - d1688 1 a1688 1 Rule Uruguay 1959 only - May 24 0:00 0:30 - d1690 1 a1690 1 Rule Uruguay 1960 only - Jan 17 0:00 1:00 - d1692 1 a1692 1 Rule Uruguay 1965 only - Apr 4 0:00 1:00 - d1694 22 a1715 52 # From Tim Parenti (2018-02-15): # Decreto 321/968 of 1968-05-25, citing emergency drought measures decreed the # day before, brought clocks forward 30 minutes from Monday 1968-05-27 00:00. # http://www.impo.com.uy/diariooficial/1968/05/30/5 Rule Uruguay 1968 only - May 27 0:00 0:30 - Rule Uruguay 1968 only - Dec 1 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 188/970 of 1970-04-23 instituted restrictions on electricity # consumption "as a consequence of the current rainfall regime in the country". # Articles 13 and 14 advanced clocks by an hour from Saturday 1970-04-25 00:00. # http://www.impo.com.uy/diariooficial/1970/04/29/4 Rule Uruguay 1970 only - Apr 25 0:00 1:00 - Rule Uruguay 1970 only - Jun 14 0:00 0 - Rule Uruguay 1972 only - Apr 23 0:00 1:00 - Rule Uruguay 1972 only - Jul 16 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 29/974 of 1974-01-11, citing "the international rise in the price of # oil", advanced clocks by 90 minutes (to UT-01:30). Decreto 163/974 of # 1974-03-04 returned 60 of those minutes (to UT-02:30), and the remaining 30 # minutes followed in Decreto 679/974 of 1974-08-29. # http://www.impo.com.uy/diariooficial/1974/01/22/11 # http://www.impo.com.uy/diariooficial/1974/03/14/3 # http://www.impo.com.uy/diariooficial/1974/09/04/6 Rule Uruguay 1974 only - Jan 13 0:00 1:30 - Rule Uruguay 1974 only - Mar 10 0:00 0:30 - Rule Uruguay 1974 only - Sep 1 0:00 0 - Rule Uruguay 1974 only - Dec 22 0:00 1:00 - Rule Uruguay 1975 only - Mar 30 0:00 0 - Rule Uruguay 1976 only - Dec 19 0:00 1:00 - Rule Uruguay 1977 only - Mar 6 0:00 0 - Rule Uruguay 1977 only - Dec 4 0:00 1:00 - Rule Uruguay 1978 1979 - Mar Sun>=1 0:00 0 - Rule Uruguay 1978 only - Dec 17 0:00 1:00 - Rule Uruguay 1979 only - Apr 29 0:00 1:00 - Rule Uruguay 1980 only - Mar 16 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 725/987 of 1987-12-04 cited "better use of national tourist # attractions" to advance clocks one hour from Monday 1987-12-14 00:00. # http://www.impo.com.uy/diariooficial/1988/01/25/1 Rule Uruguay 1987 only - Dec 14 0:00 1:00 - Rule Uruguay 1988 only - Feb 28 0:00 0 - Rule Uruguay 1988 only - Dec 11 0:00 1:00 - Rule Uruguay 1989 only - Mar 5 0:00 0 - Rule Uruguay 1989 only - Oct 29 0:00 1:00 - Rule Uruguay 1990 only - Feb 25 0:00 0 - # From Tim Parenti (2018-02-15), per Paul Eggert (1999-11-04): # IATA agrees as below for 1990-10 through 1993-02. Per Almanaque 2018, the # 1992/1993 season appears to be the first in over half a century where DST # both began and ended pursuant to the same decree. Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 - Rule Uruguay 1991 1992 - Mar Sun>=1 0:00 0 - Rule Uruguay 1992 only - Oct 18 0:00 1:00 - d1719 2 a1720 4 # From Tim Parenti (2018-02-15): # Decreto 328/004 of 2004-09-15. # http://www.impo.com.uy/diariooficial/2004/09/23/documentos.pdf#page=1 Rule Uruguay 2004 only - Sep 19 0:00 1:00 - d1724 1 a1724 7 # From Tim Parenti (2018-02-15): # This 2005 postponement is not in Almanaque 2018. Go with the contemporaneous # reporting, which is confirmed by Decreto 107/005 of 2005-03-10 amending # Decreto 328/004: # http://www.impo.com.uy/diariooficial/2005/03/15/documentos.pdf#page=1 # The original decree specified a transition of 2005-03-12 24:00, but the new # one specified 2005-03-27 02:00. d1727 8 a1734 13 # ...from 2005-10-09 at 02:00 local time, until 2006-03-12 at 02:00 local time, # official time in Uruguay will be at GMT -2. # From Tim Parenti (2018-02-15): # Decreto 318/005 of 2005-09-19. # http://www.impo.com.uy/diariooficial/2005/09/23/documentos.pdf#page=1 Rule Uruguay 2005 only - Oct 9 2:00 1:00 - Rule Uruguay 2006 2015 - Mar Sun>=8 2:00 0 - # From Tim Parenti (2018-02-15), per Jesper Nørgaard Welen (2006-09-06): # Decreto 311/006 of 2006-09-04 established regular DST from the first Sunday # of October at 02:00 through the second Sunday of March at 02:00. Almanaque # 2018 appears to have a few typoed dates through this period; ignore them. # http://www.impo.com.uy/diariooficial/2006/09/08/documentos.pdf#page=1 Rule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 - d1744 3 a1746 2 # From Tim Parenti (2018-02-15): # Decreto 178/015 of 2015-06-29; repeals Decreto 311/006. d1749 2 a1750 3 Zone America/Montevideo -3:44:51 - LMT 1908 Jun 10 -3:44:51 - MMT 1920 May 1 # Montevideo MT -4:00 - -04 1923 Oct 1 a1751 1 -3:00 Uruguay -03/-0230 1960 d1753 1 a1753 1 -3:00 Uruguay -03/-0230 1970 a1754 1 -3:00 Uruguay -03/-0130 1974 Mar 10 @ 1.1.1.1.4.6.2.3 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 South America and environs d395 1 a395 1 # setting for timestamps past 2038. a927 8 # # From Fábio Gomes (2018-10-04): # The Brazilian president just announced a new change on this year DST. # It was scheduled to start on November 4th and it was changed to November 18th. # From Rodrigo Brüning Wessler (2018-10-15): # The Brazilian government just announced that the change in DST was # canceled.... Maybe the president Michel Temer also woke up one hour # earlier today. :) a1233 18 # From Juan Correa (2018-08-13): # As of moments ago, the Ministry of Energy in Chile has announced the new # schema for DST. ... Announcement in video (in Spanish): # https://twitter.com/MinEnergia/status/1029000399129374720 # From Yonathan Dossow (2018-08-13): # The video says "first Saturday of September", we all know it means Sunday at # midnight. # From Tim Parenti (2018-08-13): # Translating the captions on the video at 0:44-0:55, "We want to announce as # Government that from 2019, Winter Time will be increased to 5 months, between # the first Saturday of April and the first Saturday of September." # At 2:08-2:20, "The Magallanes region will maintain its current time, as # decided by the citizens during 2017, but our Government will promote a # regional dialogue table to gather their opinion on this matter." # https://twitter.com/MinEnergia/status/1029009354001973248 # "We will keep the new time policy unchanged for at least the next 4 years." # So we extend the new rules on Saturdays at 24:00 mainland time indefinitely. d1267 2 a1268 4 Rule Chile 2016 2018 - May Sun>=9 3:00u 0 - Rule Chile 2016 2018 - Aug Sun>=9 4:00u 1:00 - Rule Chile 2019 max - Apr Sun>=2 3:00u 0 - Rule Chile 2019 max - Sep Sun>=2 4:00u 1:00 - @ 1.1.1.1.4.7 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 @d25 1 a25 1 # https://www.jstor.org/stable/1774359 d268 2 a269 2 # https://www.lagaceta.com.ar/nota/253414/Economia/Es-inminente-que-en-San-Luis-atrasen-una-hora-los-relojes.html # http://www.worldtimezone.com/dst_news/dst_news_argentina02.html d388 1 a388 1 # https://es.wikipedia.org/wiki/Hora_oficial_argentina d719 1 a719 1 # https://www.timeanddate.com/news/time/brazil-dst-2008-2009.html d728 1 a728 1 # https://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html d754 1 a754 1 # https://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html d760 1 a760 1 # https://www.timeanddate.com/news/time/brazil-starts-dst-2013.html d763 1 a763 1 # https://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html d1079 1 a1079 1 # This contains a copy of this official table: d1081 1 a1081 1 # https://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm d1087 1 a1087 1 # https://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html d1090 1 a1090 1 # https://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm d1366 1 a1366 1 # https://www.elcomercio.com/actualidad/hora-sixto-1993.html d1369 1 a1369 1 # https://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html d1781 1 a1781 1 # https://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE @ 1.1.1.1.4.8 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 @d28 1 a28 1 # integer hour and minute UT offsets. Although earlier editions used d50 1 a50 1 Rule Arg 1930 only - Dec 1 0:00 1:00 - d52 1 a52 1 Rule Arg 1931 only - Oct 15 0:00 1:00 - d54 2 a55 2 Rule Arg 1932 1939 - Nov 1 0:00 1:00 - Rule Arg 1940 only - Jul 1 0:00 1:00 - d57 1 a57 1 Rule Arg 1941 only - Oct 15 0:00 1:00 - d59 1 a59 1 Rule Arg 1943 only - Oct 15 0:00 1:00 - d61 1 a61 1 Rule Arg 1946 only - Oct 1 0:00 1:00 - d63 1 a63 1 Rule Arg 1963 only - Dec 15 0:00 1:00 - d65 1 a65 1 Rule Arg 1964 1966 - Oct 15 0:00 1:00 - d67 1 a67 1 Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 - d69 1 a69 1 Rule Arg 1974 only - Jan 23 0:00 1:00 - d71 1 a71 1 Rule Arg 1988 only - Dec 1 0:00 1:00 - d79 1 a79 1 Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 - d90 1 a90 1 Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 - d193 1 a193 1 Rule Arg 2007 only - Dec 30 0:00 1:00 - d195 1 a195 1 Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 - d205 1 a205 1 # From Paul Eggert (2018-01-31): d210 1 a210 3 # over Shanks & Pottenger. It is upward compatible with Milne, who # says Córdoba time was -4:16:48.2. d384 1 a384 1 # From Paul Eggert (2018-01-23): d386 1 a386 1 # with perpetual daylight saving time, but ordinary usage typically seems to d395 3 d532 1 a532 1 Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 - d582 1 a582 1 -4:32:36 1:00 BST 1932 Mar 21 # Bolivia ST d774 1 a774 1 Rule Brazil 1931 only - Oct 3 11:00 1:00 - d776 1 a776 1 Rule Brazil 1932 only - Oct 3 0:00 1:00 - d781 1 a781 1 Rule Brazil 1949 1952 - Dec 1 0:00 1:00 - d793 1 a793 1 Rule Brazil 1963 only - Dec 9 0:00 1:00 - d798 1 a798 1 Rule Brazil 1965 only - Jan 31 0:00 1:00 - d801 1 a801 1 Rule Brazil 1965 only - Dec 1 0:00 1:00 - d804 1 a804 1 Rule Brazil 1966 1967 - Nov 1 0:00 1:00 - d808 1 a808 1 Rule Brazil 1985 only - Nov 2 0:00 1:00 - d813 1 a813 1 Rule Brazil 1986 only - Oct 25 0:00 1:00 - d816 1 a816 1 Rule Brazil 1987 only - Oct 25 0:00 1:00 - d820 1 a820 1 Rule Brazil 1988 only - Oct 16 0:00 1:00 - d824 1 a824 1 Rule Brazil 1989 only - Oct 15 0:00 1:00 - d829 1 a829 1 Rule Brazil 1990 only - Oct 21 0:00 1:00 - d833 1 a833 1 Rule Brazil 1991 only - Oct 20 0:00 1:00 - d837 1 a837 1 Rule Brazil 1992 only - Oct 25 0:00 1:00 - d847 1 a847 1 Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 - d852 1 a852 1 Rule Brazil 1996 only - Oct 6 0:00 1:00 - d862 1 a862 1 Rule Brazil 1997 only - Oct 6 0:00 1:00 - d868 1 a868 1 Rule Brazil 1998 only - Oct 11 0:00 1:00 - d874 1 a874 1 Rule Brazil 1999 only - Oct 3 0:00 1:00 - d884 1 a884 1 Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 - d888 1 a888 1 Rule Brazil 2002 only - Nov 3 0:00 1:00 - d891 1 a891 1 Rule Brazil 2003 only - Oct 19 0:00 1:00 - d894 1 a894 1 Rule Brazil 2004 only - Nov 2 0:00 1:00 - d897 1 a897 1 Rule Brazil 2005 only - Oct 16 0:00 1:00 - d900 1 a900 1 Rule Brazil 2006 only - Nov 5 0:00 1:00 - d904 1 a904 1 Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 - d911 1 a911 1 Rule Brazil 2008 2017 - Oct Sun>=15 0:00 1:00 - a912 2 # Decree 7,584 (2011-10-13) # added Bahia. a913 4 # Decree 7,826 (2012-10-15) # removed Bahia and added Tocantins. # Decree 8,112 (2013-09-30) # removed Tocantins. a916 7 # From Steffen Thorsen (2017-12-18): # According to many media sources, next year's DST start in Brazil will move to # the first Sunday of November, and it will stay like that for the years after. # ... https://www.timeanddate.com/news/time/brazil-delays-dst-2018.html # From Steffen Thorsen (2017-12-20): # http://www.planalto.gov.br/ccivil_03/_ato2015-2018/2017/decreto/D9242.htm Rule Brazil 2018 max - Nov Sun>=1 0:00 1:00 - d1071 1 a1071 1 # 1890 and rounds its UT offset to 70W40; guess that in practice this d1223 1 a1223 1 Rule Chile 1927 1931 - Sep 1 0:00 1:00 - d1225 1 a1225 1 Rule Chile 1968 only - Nov 3 4:00u 1:00 - d1227 1 a1227 1 Rule Chile 1969 only - Nov 23 4:00u 1:00 - d1230 1 a1230 1 Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 - d1232 2 a1233 2 Rule Chile 1973 only - Sep 30 4:00u 1:00 - Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 - d1236 2 a1237 2 Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 - Rule Chile 1990 only - Sep 16 4:00u 1:00 - d1239 1 a1239 1 Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 - d1242 1 a1242 1 Rule Chile 1998 only - Sep 27 4:00u 1:00 - d1244 1 a1244 1 Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 - d1252 1 a1252 1 Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 - d1254 1 a1254 1 Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 - d1256 1 a1256 1 Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 - d1321 1 a1321 1 Rule CO 1992 only - May 3 0:00 1:00 - d1381 1 a1381 1 Rule Ecuador 1992 only - Nov 28 0:00 1:00 - d1471 1 a1471 1 # For now we will assume permanent -03 for the Falklands d1475 1 a1475 1 Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 - d1477 2 a1478 2 Rule Falk 1939 only - Oct 1 0:00 1:00 - Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 - d1480 1 a1480 1 Rule Falk 1983 only - Sep lastSun 0:00 1:00 - d1482 2 a1483 2 Rule Falk 1984 only - Sep 16 0:00 1:00 - Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 - d1486 1 a1486 1 Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 - d1521 1 a1521 1 Rule Para 1975 1988 - Oct 1 0:00 1:00 - d1524 3 a1526 3 Rule Para 1989 only - Oct 22 0:00 1:00 - Rule Para 1990 only - Oct 1 0:00 1:00 - Rule Para 1991 only - Oct 6 0:00 1:00 - d1528 1 a1528 1 Rule Para 1992 only - Oct 5 0:00 1:00 - d1530 1 a1530 1 Rule Para 1993 1995 - Oct 1 0:00 1:00 - d1548 1 a1548 1 Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 - d1559 1 a1559 1 Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 - d1568 1 a1568 1 Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 - d1581 1 a1581 1 Rule Para 2010 max - Oct Sun>=1 0:00 1:00 - d1614 1 a1614 1 Rule Peru 1938 only - Jan 1 0:00 1:00 - d1616 1 a1616 1 Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 - d1618 1 a1618 1 Rule Peru 1986 1987 - Jan 1 0:00 1:00 - d1620 1 a1620 1 Rule Peru 1990 only - Jan 1 0:00 1:00 - d1623 1 a1623 1 Rule Peru 1994 only - Jan 1 0:00 1:00 - d1669 1 a1669 40 # # From Tim Parenti (2018-02-20), per Jeremie Bonjour (2018-01-31) and Michael # Deckers (2018-02-20): # ... At least they kept good records... # # http://www.armada.mil.uy/ContenidosPDFs/sohma/web/almanaque/almanaque_2018.pdf#page=36 # Page 36 of Almanaque 2018, published by the Oceanography, Hydrography, and # Meteorology Service of the Uruguayan Navy, seems to give many transitions # with greater clarity than we've had before. It directly references many laws # and decrees which are, in turn, referenced below. They can be viewed in the # public archives of the Diario Oficial (in Spanish) at # http://www.impo.com.uy/diariooficial/ # # Ley No. 3920 of 1908-06-10 placed the determination of legal time under the # auspices of the National Institute for the Prediction of Time. It is unclear # exactly what offset was used during this period, though Ley No. 7200 of # 1920-04-23 used the Observatory of the National Meteorological Institute in # Montevideo (34° 54' 33" S, 56° 12' 45" W) as its reference meridian, # retarding legal time by 15 minutes 9 seconds from 1920-04-30 24:00, # resulting in UT-04. Assume the corresponding LMT of UT-03:44:51 (given on # page 725 of the Proceedings of the Second Pan-American Scientific Congress, # 1915-1916) was in use, and merely became official from 1908-06-10. # https://www.impo.com.uy/diariooficial/1908/06/18/12 # https://www.impo.com.uy/diariooficial/1920/04/27/9 # # Ley No. 7594 of 1923-06-28 specified legal time as Observatory time advanced # by 44 minutes 51 seconds (UT-03) "from 30 September to 31 March", and by 14 # minutes 51 seconds (UT-03:30) "the rest of the year"; a message from the # National Council of Administration the same day, published directly below the # law in the Diario Oficial, specified the first transition to be 1923-09-30 # 24:00. This effectively established standard time at UT-03:30 with 30 # minutes DST. Assume transitions at 24:00 on the specified days until Ley No. # 7919 of 1926-03-05 ended this arrangement, repealing all "laws and other # provisions which oppose" it, resulting in year-round UT-03:30; a Resolución # of 1926-03-11 puts the final transition at 1926-03-31 24:00, the same as it # would have been under the previous law. # https://www.impo.com.uy/diariooficial/1923/07/02/2 # https://www.impo.com.uy/diariooficial/1926/03/10/2 # https://www.impo.com.uy/diariooficial/1926/03/18/2 # d1671 2 a1672 1 Rule Uruguay 1923 1925 - Oct 1 0:00 0:30 - d1674 13 a1686 61 # From Tim Parenti (2018-02-15): # http://www.impo.com.uy/diariooficial/1933/10/27/6 # # It appears Ley No. 9122 of 1933 was never published as such in the Diario # Oficial, but instead appeared as Document 26 in the Diario on Friday # 1933-10-27 as a decree made Monday 1933-10-23 and filed under the Ministry of # National Defense. It reinstituted a DST of 30 minutes (to UT-03) "from the # last Sunday of October...until the last Saturday of March." In accordance # with this provision, the first transition was explicitly specified in Article # 2 of the decree as Saturday 1933-10-28 at 24:00; that is, Sunday 1933-10-29 # at 00:00. Assume transitions at 00:00 Sunday throughout. # # Departing from the matter-of-fact nature of previous timekeeping laws, the # 1933 decree "consider[s] the advantages of...the advance of legal time": # # "Whereas: The measure adopted by almost all nations at the time of the last # World War still persists in North America and Europe, precisely because of # the economic, hygienic, and social advantages derived from such an # emergency measure... # # Whereas: The advance of the legal time during the summer seasons, by # displacing social activity near sunrise, favors the citizen populations # and especially the society that creates and works..." # # It further specified that "necessary measures" be taken to ensure that # "public spectacles finish, in general, before [01:00]." Rule Uruguay 1933 1938 - Oct lastSun 0:00 0:30 - Rule Uruguay 1934 1941 - Mar lastSat 24:00 0 - # From Tim Parenti (2018-02-15): # Most of the Rules below, and their contemporaneous Zone lines, have been # updated simply to match the Almanaque 2018. Although the document does not # list exact transition times, midnight transitions were already present in our # data here for all transitions through 2004-09, and this is both consistent # with prior transitions and verified in several decrees marked below between # 1939-09 and 2004-09, wherein the relevant text was typically of the form: # # "From 0 hours on [date], the legal time of the entire Republic will be... # # In accordance with [the preceding], on [previous date] at 24 hours, all # clocks throughout the Republic will be [advanced/retarded] by..." # # It is possible that there is greater specificity to be found for the Rules # below, but it is buried in no fewer than 40 different decrees individually # referenced by the Almanaque for the period from 1939-09 to 2014-09. # Four-fifths of these were promulgated less than two weeks before taking # effect; more than half within a week and none more than 5 weeks. Only the # handful with comments below have been checked with any thoroughness. Rule Uruguay 1939 only - Oct 1 0:00 0:30 - Rule Uruguay 1940 only - Oct 27 0:00 0:30 - # From Tim Parenti (2018-02-15): # Decreto 1145 of the Ministry of National Defense, dated 1941-07-26, specified # UT-03 from Friday 1941-08-01 00:00, citing an "urgent...need to save fuel". # http://www.impo.com.uy/diariooficial/1941/08/04/1 Rule Uruguay 1941 only - Aug 1 0:00 0:30 - # From Tim Parenti (2018-02-15): # Decreto 1866 of the Ministry of National Defense, dated 1942-12-09, specified # further advancement (to UT-02:30) from Sunday 1942-12-13 24:00. Since clocks # never went back to UT-03:30 thereafter, this is modeled as advancing standard # time by 30 minutes to UT-03, while retaining 30 minutes of DST. # http://www.impo.com.uy/diariooficial/1942/12/16/3 Rule Uruguay 1942 only - Dec 14 0:00 0:30 - d1688 1 a1688 1 Rule Uruguay 1959 only - May 24 0:00 0:30 - d1690 1 a1690 1 Rule Uruguay 1960 only - Jan 17 0:00 1:00 - d1692 1 a1692 1 Rule Uruguay 1965 only - Apr 4 0:00 1:00 - d1694 22 a1715 52 # From Tim Parenti (2018-02-15): # Decreto 321/968 of 1968-05-25, citing emergency drought measures decreed the # day before, brought clocks forward 30 minutes from Monday 1968-05-27 00:00. # http://www.impo.com.uy/diariooficial/1968/05/30/5 Rule Uruguay 1968 only - May 27 0:00 0:30 - Rule Uruguay 1968 only - Dec 1 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 188/970 of 1970-04-23 instituted restrictions on electricity # consumption "as a consequence of the current rainfall regime in the country". # Articles 13 and 14 advanced clocks by an hour from Saturday 1970-04-25 00:00. # http://www.impo.com.uy/diariooficial/1970/04/29/4 Rule Uruguay 1970 only - Apr 25 0:00 1:00 - Rule Uruguay 1970 only - Jun 14 0:00 0 - Rule Uruguay 1972 only - Apr 23 0:00 1:00 - Rule Uruguay 1972 only - Jul 16 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 29/974 of 1974-01-11, citing "the international rise in the price of # oil", advanced clocks by 90 minutes (to UT-01:30). Decreto 163/974 of # 1974-03-04 returned 60 of those minutes (to UT-02:30), and the remaining 30 # minutes followed in Decreto 679/974 of 1974-08-29. # http://www.impo.com.uy/diariooficial/1974/01/22/11 # http://www.impo.com.uy/diariooficial/1974/03/14/3 # http://www.impo.com.uy/diariooficial/1974/09/04/6 Rule Uruguay 1974 only - Jan 13 0:00 1:30 - Rule Uruguay 1974 only - Mar 10 0:00 0:30 - Rule Uruguay 1974 only - Sep 1 0:00 0 - Rule Uruguay 1974 only - Dec 22 0:00 1:00 - Rule Uruguay 1975 only - Mar 30 0:00 0 - Rule Uruguay 1976 only - Dec 19 0:00 1:00 - Rule Uruguay 1977 only - Mar 6 0:00 0 - Rule Uruguay 1977 only - Dec 4 0:00 1:00 - Rule Uruguay 1978 1979 - Mar Sun>=1 0:00 0 - Rule Uruguay 1978 only - Dec 17 0:00 1:00 - Rule Uruguay 1979 only - Apr 29 0:00 1:00 - Rule Uruguay 1980 only - Mar 16 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 725/987 of 1987-12-04 cited "better use of national tourist # attractions" to advance clocks one hour from Monday 1987-12-14 00:00. # http://www.impo.com.uy/diariooficial/1988/01/25/1 Rule Uruguay 1987 only - Dec 14 0:00 1:00 - Rule Uruguay 1988 only - Feb 28 0:00 0 - Rule Uruguay 1988 only - Dec 11 0:00 1:00 - Rule Uruguay 1989 only - Mar 5 0:00 0 - Rule Uruguay 1989 only - Oct 29 0:00 1:00 - Rule Uruguay 1990 only - Feb 25 0:00 0 - # From Tim Parenti (2018-02-15), per Paul Eggert (1999-11-04): # IATA agrees as below for 1990-10 through 1993-02. Per Almanaque 2018, the # 1992/1993 season appears to be the first in over half a century where DST # both began and ended pursuant to the same decree. Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 - Rule Uruguay 1991 1992 - Mar Sun>=1 0:00 0 - Rule Uruguay 1992 only - Oct 18 0:00 1:00 - d1719 2 a1720 4 # From Tim Parenti (2018-02-15): # Decreto 328/004 of 2004-09-15. # http://www.impo.com.uy/diariooficial/2004/09/23/documentos.pdf#page=1 Rule Uruguay 2004 only - Sep 19 0:00 1:00 - d1724 1 a1724 7 # From Tim Parenti (2018-02-15): # This 2005 postponement is not in Almanaque 2018. Go with the contemporaneous # reporting, which is confirmed by Decreto 107/005 of 2005-03-10 amending # Decreto 328/004: # http://www.impo.com.uy/diariooficial/2005/03/15/documentos.pdf#page=1 # The original decree specified a transition of 2005-03-12 24:00, but the new # one specified 2005-03-27 02:00. d1727 8 a1734 13 # ...from 2005-10-09 at 02:00 local time, until 2006-03-12 at 02:00 local time, # official time in Uruguay will be at GMT -2. # From Tim Parenti (2018-02-15): # Decreto 318/005 of 2005-09-19. # http://www.impo.com.uy/diariooficial/2005/09/23/documentos.pdf#page=1 Rule Uruguay 2005 only - Oct 9 2:00 1:00 - Rule Uruguay 2006 2015 - Mar Sun>=8 2:00 0 - # From Tim Parenti (2018-02-15), per Jesper Nørgaard Welen (2006-09-06): # Decreto 311/006 of 2006-09-04 established regular DST from the first Sunday # of October at 02:00 through the second Sunday of March at 02:00. Almanaque # 2018 appears to have a few typoed dates through this period; ignore them. # http://www.impo.com.uy/diariooficial/2006/09/08/documentos.pdf#page=1 Rule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 - d1744 3 a1746 2 # From Tim Parenti (2018-02-15): # Decreto 178/015 of 2015-06-29; repeals Decreto 311/006. d1749 2 a1750 3 Zone America/Montevideo -3:44:51 - LMT 1908 Jun 10 -3:44:51 - MMT 1920 May 1 # Montevideo MT -4:00 - -04 1923 Oct 1 a1751 1 -3:00 Uruguay -03/-0230 1960 d1753 1 a1753 1 -3:00 Uruguay -03/-0230 1970 a1754 1 -3:00 Uruguay -03/-0130 1974 Mar 10 @ 1.1.1.1.4.9 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 South America and environs d395 1 a395 1 # setting for timestamps past 2038. a927 8 # # From Fábio Gomes (2018-10-04): # The Brazilian president just announced a new change on this year DST. # It was scheduled to start on November 4th and it was changed to November 18th. # From Rodrigo Brüning Wessler (2018-10-15): # The Brazilian government just announced that the change in DST was # canceled.... Maybe the president Michel Temer also woke up one hour # earlier today. :) a1233 18 # From Juan Correa (2018-08-13): # As of moments ago, the Ministry of Energy in Chile has announced the new # schema for DST. ... Announcement in video (in Spanish): # https://twitter.com/MinEnergia/status/1029000399129374720 # From Yonathan Dossow (2018-08-13): # The video says "first Saturday of September", we all know it means Sunday at # midnight. # From Tim Parenti (2018-08-13): # Translating the captions on the video at 0:44-0:55, "We want to announce as # Government that from 2019, Winter Time will be increased to 5 months, between # the first Saturday of April and the first Saturday of September." # At 2:08-2:20, "The Magallanes region will maintain its current time, as # decided by the citizens during 2017, but our Government will promote a # regional dialogue table to gather their opinion on this matter." # https://twitter.com/MinEnergia/status/1029009354001973248 # "We will keep the new time policy unchanged for at least the next 4 years." # So we extend the new rules on Saturdays at 24:00 mainland time indefinitely. d1267 2 a1268 4 Rule Chile 2016 2018 - May Sun>=9 3:00u 0 - Rule Chile 2016 2018 - Aug Sun>=9 4:00u 1:00 - Rule Chile 2019 max - Apr Sun>=2 3:00u 0 - Rule Chile 2019 max - Sep Sun>=2 4:00u 1:00 - @ 1.1.1.1.4.4.2.1 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 @d413 1 a413 1 # Perhaps San Luis operates on the legal fiction that it is at -04 d415 1 a415 1 # just say it's at -03; see, for example, a1223 14 # From Juan Correa (2016-03-18): # The decree regarding DST has been published in today's Official Gazette: # http://www.diariooficial.interior.gob.cl/versiones-anteriores/do/20160318/ # http://www.leychile.cl/Navegar?idNorma=1088502 # It does consider the second Saturday of May and August as the dates # for the transition; and it lists DST dates until 2019, but I think # this scheme will stick. # # From Paul Eggert (2016-03-18): # For now, assume the pattern holds for the indefinite future. # The decree says transitions occur at 24:00; in practice this appears # to mean 24:00 mainland time, not 24:00 local time, so that Easter # Island is always two hours behind the mainland. d1255 1 a1255 1 Rule Chile 2012 2014 - Apr Sun>=23 3:00u 0 - a1256 2 Rule Chile 2016 max - May Sun>=9 3:00u 0 - Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 S d1273 2 a1274 1 -4:00 Chile CL%sT d1278 2 a1279 1 -6:00 Chile EAS%sT d1298 1 a1298 1 Zone Antarctica/Palmer 0 - -00 1965 d1301 2 a1302 1 -4:00 Chile CL%sT a1744 15 # From Alexander Krivenyshev (2016-04-15): # https://actualidad.rt.com/actualidad/204758-venezuela-modificar-huso-horario-sequia-elnino # # From Paul Eggert (2016-04-15): # Clocks advance 30 minutes on 2016-05-01 at 02:30.... # "'Venezuela's new time-zone: hours without light, hours without water, # hours of presidential broadcasts, hours of lines,' quipped comedian # Jean Mary Curró ...". See: Cawthorne A, Kai D. Venezuela scraps # half-hour time difference set by Chavez. Reuters 2016-04-15 14:50 -0400 # http://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE # # From Matt Johnson (2016-04-20): # ... published in the official Gazette [2016-04-18], here: # http://historico.tsj.gob.ve/gaceta_ext/abril/1842016/E-1842016-4551.pdf d1750 1 a1750 2 -4:30 - VET 2016 May 1 2:30 -4:00 - VET @ 1.1.1.1.4.4.2.2 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 (2016-12-05): d16 2 a17 2 # Many years ago Gwillim Law wrote that a good source # for time zone data was the International Air Transport d27 26 a52 4 # These tables use numeric abbreviations like -03 and -0330 for # integer hour and minute UTC offsets. Although earlier editions used # alphabetic time zone abbreviations, these abbreviations were # invented and did not reflect common practice. d387 6 d431 5 a435 5 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 d449 7 a455 7 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 d460 8 a467 8 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d472 9 a480 9 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 13 -3:00 Arg -03/-02 d485 10 a494 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 1 -4:00 - -04 1991 May 7 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d499 10 a508 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 1 -4:00 - -04 1991 May 7 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 31 -4:00 - -04 2004 Jul 25 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d513 11 a523 11 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 Mar 4 -4:00 - -04 1990 Oct 28 -4:00 1:00 -03 1991 Mar 17 -4:00 - -04 1991 Oct 6 -3:00 1:00 -02 1992 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d528 10 a537 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d542 14 a555 14 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 Mar 4 -4:00 - -04 1990 Oct 15 -4:00 1:00 -03 1991 Mar 1 -4:00 - -04 1991 Oct 15 -4:00 1:00 -03 1992 Mar 1 -4:00 - -04 1992 Oct 18 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 23 -4:00 - -04 2004 Sep 26 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d564 14 a577 14 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 -3:00 1:00 -02 1990 Mar 14 -4:00 - -04 1990 Oct 15 -4:00 1:00 -03 1991 Mar 1 -4:00 - -04 1991 Jun 1 -3:00 - -03 1999 Oct 3 -4:00 1:00 -03 2000 Mar 3 -3:00 - -03 2004 May 31 -4:00 - -04 2004 Jul 25 -3:00 Arg -03/-02 2008 Jan 21 -4:00 SanLuis -04/-03 2009 Oct 11 -3:00 - -03 d581 9 a589 9 -4:16:48 - CMT 1920 May -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d593 9 a601 9 -4:16:48 - CMT 1920 May -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 30 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d611 1 a611 1 -4:00 - -04 d963 6 a968 6 -2:00 Brazil -02/-01 1990 Sep 17 -2:00 - -02 1999 Sep 30 -2:00 Brazil -02/-01 2000 Oct 15 -2:00 - -02 2001 Sep 13 -2:00 Brazil -02/-01 2002 Oct 1 -2:00 - -02 d981 2 a982 2 -3:00 Brazil -03/-02 1988 Sep 12 -3:00 - -03 d987 3 a989 3 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 2008 Jun 24 0:00 -3:00 - -03 d994 6 a999 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 22 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1003 6 a1008 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 15 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1012 6 a1017 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1995 Sep 14 -3:00 Brazil -03/-02 2003 Sep 24 -3:00 - -03 2012 Oct 21 -3:00 Brazil -03/-02 2013 Sep -3:00 - -03 d1021 8 a1028 8 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1995 Oct 13 -3:00 Brazil -03/-02 1996 Sep 4 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 22 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1034 4 a1037 4 -3:00 Brazil -03/-02 2003 Sep 24 -3:00 - -03 2011 Oct 16 -3:00 Brazil -03/-02 2012 Oct 21 -3:00 - -03 d1043 3 a1045 3 -3:00 Brazil -03/-02 1963 Oct 23 0:00 -3:00 1:00 -02 1964 -3:00 Brazil -03/-02 d1049 1 a1049 1 -4:00 Brazil -04/-03 d1053 3 a1055 3 -4:00 Brazil -04/-03 2003 Sep 24 -4:00 - -04 2004 Oct 1 -4:00 Brazil -04/-03 d1059 2 a1060 2 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 d1064 4 a1067 4 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 1999 Sep 30 -4:00 Brazil -04/-03 2000 Oct 15 -4:00 - -04 d1073 4 a1076 4 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 1993 Sep 28 -4:00 Brazil -04/-03 1994 Sep 22 -4:00 - -04 d1081 6 a1086 6 -5:00 Brazil -05/-04 1988 Sep 12 -5:00 - -05 1993 Sep 28 -5:00 Brazil -05/-04 1994 Sep 22 -5:00 - -05 2008 Jun 24 0:00 -4:00 - -04 2013 Nov 10 -5:00 - -05 d1090 4 a1093 4 -5:00 Brazil -05/-04 1988 Sep 12 -5:00 - -05 2008 Jun 24 0:00 -4:00 - -04 2013 Nov 10 -5:00 - -05 a1237 12 # From Juan Correa (2016-12-04): # Magallanes region ... will keep DST (UTC -3) all year round.... # http://www.soychile.cl/Santiago/Sociedad/2016/12/04/433428/Bachelet-firmo-el-decreto-para-establecer-un-horario-unico-para-la-Region-de-Magallanes.aspx # # From Deborah Goldsmith (2017-01-19): # http://www.diariooficial.interior.gob.cl/publicaciones/2017/01/17/41660/01/1169626.pdf # From Paul Eggert (2017-01-19): # The above says the Magallanes change expires 2019-05-11 at 24:00, # so in theory, they will revert to -04/-03 after that, which means # they will switch from -03 to -04 one hour after Santiago does that day. # For now, assume that they will not revert. d1278 1 a1278 1 -5:00 - -05 1916 Jul 1 d1280 1 a1280 1 -4:00 - -04 1919 Jul 1 d1282 8 a1289 21 -5:00 Chile -05/-04 1932 Sep 1 -4:00 - -04 1942 Jun 1 -5:00 - -05 1942 Aug 1 -4:00 - -04 1946 Jul 15 -4:00 1:00 -03 1946 Sep 1 # central Chile -4:00 - -04 1947 Apr 1 -5:00 - -05 1947 May 21 23:00 -4:00 Chile -04/-03 Zone America/Punta_Arenas -4:43:40 - LMT 1890 -4:42:46 - SMT 1910 Jan 10 -5:00 - -05 1916 Jul 1 -4:42:46 - SMT 1918 Sep 10 -4:00 - -04 1919 Jul 1 -4:42:46 - SMT 1927 Sep 1 -5:00 Chile -05/-04 1932 Sep 1 -4:00 - -04 1942 Jun 1 -5:00 - -05 1942 Aug 1 -4:00 - -04 1947 Apr 1 -5:00 - -05 1947 May 21 23:00 -4:00 Chile -04/-03 2016 Dec 4 -3:00 - -03 d1292 2 a1293 2 -7:00 Chile -07/-06 1982 Mar 14 3:00u # Easter Time -6:00 Chile -06/-05 d1313 3 a1315 4 -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1982 May -4:00 Chile -04/-03 2016 Dec 4 -3:00 - -03 d1328 1 a1328 1 -5:00 CO -05/-04 d1352 1 a1352 1 -4:30 - -0430 1965 d1367 5 a1371 18 # From Alois Treindl (2016-12-15): # http://www.elcomercio.com/actualidad/hora-sixto-1993.html # ... Whether the law applied also to Galápagos, I do not know. # From Paul Eggert (2016-12-15): # http://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html # This says President Sixto Durán Ballén signed decree No. 285, which # established DST from 1992-11-28 to 1993-02-05; it does not give transition # times. The people called it "hora de Sixto" ("Sixto hour"). The change did # not go over well; a popular song "Qué hora es" by Jaime Guevara had lyrics # that included "Amanecía en mitad de la noche, los guaguas iban a clase sin # sol" ("It was dawning in the middle of the night, the buses went to class # without sun"). Although Ballén's campaign slogan was "Ni un paso atrás" # (Not one step back), the clocks went back in 1993 and the experiment was not # repeated. For now, assume transitions were at 00:00 local time country-wide. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Ecuador 1992 only - Nov 28 0:00 1:00 S Rule Ecuador 1993 only - Feb 5 0:00 0 - d1376 1 a1376 1 -5:00 Ecuador -05/-04 d1378 2 a1379 2 -5:00 - -05 1986 -6:00 Ecuador -06/-05 d1479 4 a1482 4 -4:00 Falk -04/-03 1983 May -3:00 Falk -03/-02 1985 Sep 15 -4:00 Falk -04/-03 2010 Sep 5 2:00 -3:00 - -03 d1487 2 a1488 2 -4:00 - -04 1967 Oct -3:00 - -03 d1493 3 a1495 2 -3:45 - -0345 1975 Jul 31 -3:00 - -03 1991 d1497 1 a1497 1 -4:00 - -04 d1589 3 a1591 3 -4:00 - -04 1972 Oct -3:00 - -03 1974 Apr -4:00 Para -04/-03 d1618 1 a1618 1 -5:00 Peru -05/-04 d1623 1 a1623 1 -2:00 - -02 d1633 3 a1635 2 -3:30 - -0330 1984 Oct -3:00 - -03 d1738 1 a1738 2 # This Zone can be simplified once we assume zic %z. d1741 2 a1742 6 -3:30 Uruguay -0330/-03 1942 Dec 14 -3:00 Uruguay -03/-02 1968 -3:00 Uruguay -03/-0230 1971 -3:00 Uruguay -03/-02 1974 -3:00 Uruguay -03/-0230 1974 Dec 22 -3:00 Uruguay -03/-02 d1776 4 a1779 4 -4:30 - -0430 1965 Jan 1 0:00 -4:00 - -04 2007 Dec 9 3:00 -4:30 - -0430 2016 May 1 2:30 -4:00 - -04 @ 1.1.1.1.4.4.2.3 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 @d25 1 a25 1 # https://www.jstor.org/stable/1774359 d268 2 a269 2 # https://www.lagaceta.com.ar/nota/253414/Economia/Es-inminente-que-en-San-Luis-atrasen-una-hora-los-relojes.html # http://www.worldtimezone.com/dst_news/dst_news_argentina02.html d388 1 a388 1 # https://es.wikipedia.org/wiki/Hora_oficial_argentina d719 1 a719 1 # https://www.timeanddate.com/news/time/brazil-dst-2008-2009.html d728 1 a728 1 # https://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html d754 1 a754 1 # https://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html d760 1 a760 1 # https://www.timeanddate.com/news/time/brazil-starts-dst-2013.html d763 1 a763 1 # https://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html d1079 1 a1079 1 # This contains a copy of this official table: d1081 1 a1081 1 # https://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm d1087 1 a1087 1 # https://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html d1090 1 a1090 1 # https://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm d1366 1 a1366 1 # https://www.elcomercio.com/actualidad/hora-sixto-1993.html d1369 1 a1369 1 # https://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html d1781 1 a1781 1 # https://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE @ 1.1.1.1.4.4.2.4 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 @d28 1 a28 1 # integer hour and minute UT offsets. Although earlier editions used d50 1 a50 1 Rule Arg 1930 only - Dec 1 0:00 1:00 - d52 1 a52 1 Rule Arg 1931 only - Oct 15 0:00 1:00 - d54 2 a55 2 Rule Arg 1932 1939 - Nov 1 0:00 1:00 - Rule Arg 1940 only - Jul 1 0:00 1:00 - d57 1 a57 1 Rule Arg 1941 only - Oct 15 0:00 1:00 - d59 1 a59 1 Rule Arg 1943 only - Oct 15 0:00 1:00 - d61 1 a61 1 Rule Arg 1946 only - Oct 1 0:00 1:00 - d63 1 a63 1 Rule Arg 1963 only - Dec 15 0:00 1:00 - d65 1 a65 1 Rule Arg 1964 1966 - Oct 15 0:00 1:00 - d67 1 a67 1 Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 - d69 1 a69 1 Rule Arg 1974 only - Jan 23 0:00 1:00 - d71 1 a71 1 Rule Arg 1988 only - Dec 1 0:00 1:00 - d79 1 a79 1 Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 - d90 1 a90 1 Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 - d193 1 a193 1 Rule Arg 2007 only - Dec 30 0:00 1:00 - d195 1 a195 1 Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 - d205 1 a205 1 # From Paul Eggert (2018-01-31): d210 1 a210 3 # over Shanks & Pottenger. It is upward compatible with Milne, who # says Córdoba time was -4:16:48.2. d384 1 a384 1 # From Paul Eggert (2018-01-23): d386 1 a386 1 # with perpetual daylight saving time, but ordinary usage typically seems to d395 3 d532 1 a532 1 Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 - d582 1 a582 1 -4:32:36 1:00 BST 1932 Mar 21 # Bolivia ST d774 1 a774 1 Rule Brazil 1931 only - Oct 3 11:00 1:00 - d776 1 a776 1 Rule Brazil 1932 only - Oct 3 0:00 1:00 - d781 1 a781 1 Rule Brazil 1949 1952 - Dec 1 0:00 1:00 - d793 1 a793 1 Rule Brazil 1963 only - Dec 9 0:00 1:00 - d798 1 a798 1 Rule Brazil 1965 only - Jan 31 0:00 1:00 - d801 1 a801 1 Rule Brazil 1965 only - Dec 1 0:00 1:00 - d804 1 a804 1 Rule Brazil 1966 1967 - Nov 1 0:00 1:00 - d808 1 a808 1 Rule Brazil 1985 only - Nov 2 0:00 1:00 - d813 1 a813 1 Rule Brazil 1986 only - Oct 25 0:00 1:00 - d816 1 a816 1 Rule Brazil 1987 only - Oct 25 0:00 1:00 - d820 1 a820 1 Rule Brazil 1988 only - Oct 16 0:00 1:00 - d824 1 a824 1 Rule Brazil 1989 only - Oct 15 0:00 1:00 - d829 1 a829 1 Rule Brazil 1990 only - Oct 21 0:00 1:00 - d833 1 a833 1 Rule Brazil 1991 only - Oct 20 0:00 1:00 - d837 1 a837 1 Rule Brazil 1992 only - Oct 25 0:00 1:00 - d847 1 a847 1 Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 - d852 1 a852 1 Rule Brazil 1996 only - Oct 6 0:00 1:00 - d862 1 a862 1 Rule Brazil 1997 only - Oct 6 0:00 1:00 - d868 1 a868 1 Rule Brazil 1998 only - Oct 11 0:00 1:00 - d874 1 a874 1 Rule Brazil 1999 only - Oct 3 0:00 1:00 - d884 1 a884 1 Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 - d888 1 a888 1 Rule Brazil 2002 only - Nov 3 0:00 1:00 - d891 1 a891 1 Rule Brazil 2003 only - Oct 19 0:00 1:00 - d894 1 a894 1 Rule Brazil 2004 only - Nov 2 0:00 1:00 - d897 1 a897 1 Rule Brazil 2005 only - Oct 16 0:00 1:00 - d900 1 a900 1 Rule Brazil 2006 only - Nov 5 0:00 1:00 - d904 1 a904 1 Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 - d911 1 a911 1 Rule Brazil 2008 2017 - Oct Sun>=15 0:00 1:00 - a912 2 # Decree 7,584 (2011-10-13) # added Bahia. a913 4 # Decree 7,826 (2012-10-15) # removed Bahia and added Tocantins. # Decree 8,112 (2013-09-30) # removed Tocantins. a916 7 # From Steffen Thorsen (2017-12-18): # According to many media sources, next year's DST start in Brazil will move to # the first Sunday of November, and it will stay like that for the years after. # ... https://www.timeanddate.com/news/time/brazil-delays-dst-2018.html # From Steffen Thorsen (2017-12-20): # http://www.planalto.gov.br/ccivil_03/_ato2015-2018/2017/decreto/D9242.htm Rule Brazil 2018 max - Nov Sun>=1 0:00 1:00 - d1071 1 a1071 1 # 1890 and rounds its UT offset to 70W40; guess that in practice this d1223 1 a1223 1 Rule Chile 1927 1931 - Sep 1 0:00 1:00 - d1225 1 a1225 1 Rule Chile 1968 only - Nov 3 4:00u 1:00 - d1227 1 a1227 1 Rule Chile 1969 only - Nov 23 4:00u 1:00 - d1230 1 a1230 1 Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 - d1232 2 a1233 2 Rule Chile 1973 only - Sep 30 4:00u 1:00 - Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 - d1236 2 a1237 2 Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 - Rule Chile 1990 only - Sep 16 4:00u 1:00 - d1239 1 a1239 1 Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 - d1242 1 a1242 1 Rule Chile 1998 only - Sep 27 4:00u 1:00 - d1244 1 a1244 1 Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 - d1252 1 a1252 1 Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 - d1254 1 a1254 1 Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 - d1256 1 a1256 1 Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 - d1321 1 a1321 1 Rule CO 1992 only - May 3 0:00 1:00 - d1381 1 a1381 1 Rule Ecuador 1992 only - Nov 28 0:00 1:00 - d1471 1 a1471 1 # For now we will assume permanent -03 for the Falklands d1475 1 a1475 1 Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 - d1477 2 a1478 2 Rule Falk 1939 only - Oct 1 0:00 1:00 - Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 - d1480 1 a1480 1 Rule Falk 1983 only - Sep lastSun 0:00 1:00 - d1482 2 a1483 2 Rule Falk 1984 only - Sep 16 0:00 1:00 - Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 - d1486 1 a1486 1 Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 - d1521 1 a1521 1 Rule Para 1975 1988 - Oct 1 0:00 1:00 - d1524 3 a1526 3 Rule Para 1989 only - Oct 22 0:00 1:00 - Rule Para 1990 only - Oct 1 0:00 1:00 - Rule Para 1991 only - Oct 6 0:00 1:00 - d1528 1 a1528 1 Rule Para 1992 only - Oct 5 0:00 1:00 - d1530 1 a1530 1 Rule Para 1993 1995 - Oct 1 0:00 1:00 - d1548 1 a1548 1 Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 - d1559 1 a1559 1 Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 - d1568 1 a1568 1 Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 - d1581 1 a1581 1 Rule Para 2010 max - Oct Sun>=1 0:00 1:00 - d1614 1 a1614 1 Rule Peru 1938 only - Jan 1 0:00 1:00 - d1616 1 a1616 1 Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 - d1618 1 a1618 1 Rule Peru 1986 1987 - Jan 1 0:00 1:00 - d1620 1 a1620 1 Rule Peru 1990 only - Jan 1 0:00 1:00 - d1623 1 a1623 1 Rule Peru 1994 only - Jan 1 0:00 1:00 - d1669 1 a1669 40 # # From Tim Parenti (2018-02-20), per Jeremie Bonjour (2018-01-31) and Michael # Deckers (2018-02-20): # ... At least they kept good records... # # http://www.armada.mil.uy/ContenidosPDFs/sohma/web/almanaque/almanaque_2018.pdf#page=36 # Page 36 of Almanaque 2018, published by the Oceanography, Hydrography, and # Meteorology Service of the Uruguayan Navy, seems to give many transitions # with greater clarity than we've had before. It directly references many laws # and decrees which are, in turn, referenced below. They can be viewed in the # public archives of the Diario Oficial (in Spanish) at # http://www.impo.com.uy/diariooficial/ # # Ley No. 3920 of 1908-06-10 placed the determination of legal time under the # auspices of the National Institute for the Prediction of Time. It is unclear # exactly what offset was used during this period, though Ley No. 7200 of # 1920-04-23 used the Observatory of the National Meteorological Institute in # Montevideo (34° 54' 33" S, 56° 12' 45" W) as its reference meridian, # retarding legal time by 15 minutes 9 seconds from 1920-04-30 24:00, # resulting in UT-04. Assume the corresponding LMT of UT-03:44:51 (given on # page 725 of the Proceedings of the Second Pan-American Scientific Congress, # 1915-1916) was in use, and merely became official from 1908-06-10. # https://www.impo.com.uy/diariooficial/1908/06/18/12 # https://www.impo.com.uy/diariooficial/1920/04/27/9 # # Ley No. 7594 of 1923-06-28 specified legal time as Observatory time advanced # by 44 minutes 51 seconds (UT-03) "from 30 September to 31 March", and by 14 # minutes 51 seconds (UT-03:30) "the rest of the year"; a message from the # National Council of Administration the same day, published directly below the # law in the Diario Oficial, specified the first transition to be 1923-09-30 # 24:00. This effectively established standard time at UT-03:30 with 30 # minutes DST. Assume transitions at 24:00 on the specified days until Ley No. # 7919 of 1926-03-05 ended this arrangement, repealing all "laws and other # provisions which oppose" it, resulting in year-round UT-03:30; a Resolución # of 1926-03-11 puts the final transition at 1926-03-31 24:00, the same as it # would have been under the previous law. # https://www.impo.com.uy/diariooficial/1923/07/02/2 # https://www.impo.com.uy/diariooficial/1926/03/10/2 # https://www.impo.com.uy/diariooficial/1926/03/18/2 # d1671 2 a1672 1 Rule Uruguay 1923 1925 - Oct 1 0:00 0:30 - d1674 13 a1686 61 # From Tim Parenti (2018-02-15): # http://www.impo.com.uy/diariooficial/1933/10/27/6 # # It appears Ley No. 9122 of 1933 was never published as such in the Diario # Oficial, but instead appeared as Document 26 in the Diario on Friday # 1933-10-27 as a decree made Monday 1933-10-23 and filed under the Ministry of # National Defense. It reinstituted a DST of 30 minutes (to UT-03) "from the # last Sunday of October...until the last Saturday of March." In accordance # with this provision, the first transition was explicitly specified in Article # 2 of the decree as Saturday 1933-10-28 at 24:00; that is, Sunday 1933-10-29 # at 00:00. Assume transitions at 00:00 Sunday throughout. # # Departing from the matter-of-fact nature of previous timekeeping laws, the # 1933 decree "consider[s] the advantages of...the advance of legal time": # # "Whereas: The measure adopted by almost all nations at the time of the last # World War still persists in North America and Europe, precisely because of # the economic, hygienic, and social advantages derived from such an # emergency measure... # # Whereas: The advance of the legal time during the summer seasons, by # displacing social activity near sunrise, favors the citizen populations # and especially the society that creates and works..." # # It further specified that "necessary measures" be taken to ensure that # "public spectacles finish, in general, before [01:00]." Rule Uruguay 1933 1938 - Oct lastSun 0:00 0:30 - Rule Uruguay 1934 1941 - Mar lastSat 24:00 0 - # From Tim Parenti (2018-02-15): # Most of the Rules below, and their contemporaneous Zone lines, have been # updated simply to match the Almanaque 2018. Although the document does not # list exact transition times, midnight transitions were already present in our # data here for all transitions through 2004-09, and this is both consistent # with prior transitions and verified in several decrees marked below between # 1939-09 and 2004-09, wherein the relevant text was typically of the form: # # "From 0 hours on [date], the legal time of the entire Republic will be... # # In accordance with [the preceding], on [previous date] at 24 hours, all # clocks throughout the Republic will be [advanced/retarded] by..." # # It is possible that there is greater specificity to be found for the Rules # below, but it is buried in no fewer than 40 different decrees individually # referenced by the Almanaque for the period from 1939-09 to 2014-09. # Four-fifths of these were promulgated less than two weeks before taking # effect; more than half within a week and none more than 5 weeks. Only the # handful with comments below have been checked with any thoroughness. Rule Uruguay 1939 only - Oct 1 0:00 0:30 - Rule Uruguay 1940 only - Oct 27 0:00 0:30 - # From Tim Parenti (2018-02-15): # Decreto 1145 of the Ministry of National Defense, dated 1941-07-26, specified # UT-03 from Friday 1941-08-01 00:00, citing an "urgent...need to save fuel". # http://www.impo.com.uy/diariooficial/1941/08/04/1 Rule Uruguay 1941 only - Aug 1 0:00 0:30 - # From Tim Parenti (2018-02-15): # Decreto 1866 of the Ministry of National Defense, dated 1942-12-09, specified # further advancement (to UT-02:30) from Sunday 1942-12-13 24:00. Since clocks # never went back to UT-03:30 thereafter, this is modeled as advancing standard # time by 30 minutes to UT-03, while retaining 30 minutes of DST. # http://www.impo.com.uy/diariooficial/1942/12/16/3 Rule Uruguay 1942 only - Dec 14 0:00 0:30 - d1688 1 a1688 1 Rule Uruguay 1959 only - May 24 0:00 0:30 - d1690 1 a1690 1 Rule Uruguay 1960 only - Jan 17 0:00 1:00 - d1692 1 a1692 1 Rule Uruguay 1965 only - Apr 4 0:00 1:00 - d1694 22 a1715 52 # From Tim Parenti (2018-02-15): # Decreto 321/968 of 1968-05-25, citing emergency drought measures decreed the # day before, brought clocks forward 30 minutes from Monday 1968-05-27 00:00. # http://www.impo.com.uy/diariooficial/1968/05/30/5 Rule Uruguay 1968 only - May 27 0:00 0:30 - Rule Uruguay 1968 only - Dec 1 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 188/970 of 1970-04-23 instituted restrictions on electricity # consumption "as a consequence of the current rainfall regime in the country". # Articles 13 and 14 advanced clocks by an hour from Saturday 1970-04-25 00:00. # http://www.impo.com.uy/diariooficial/1970/04/29/4 Rule Uruguay 1970 only - Apr 25 0:00 1:00 - Rule Uruguay 1970 only - Jun 14 0:00 0 - Rule Uruguay 1972 only - Apr 23 0:00 1:00 - Rule Uruguay 1972 only - Jul 16 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 29/974 of 1974-01-11, citing "the international rise in the price of # oil", advanced clocks by 90 minutes (to UT-01:30). Decreto 163/974 of # 1974-03-04 returned 60 of those minutes (to UT-02:30), and the remaining 30 # minutes followed in Decreto 679/974 of 1974-08-29. # http://www.impo.com.uy/diariooficial/1974/01/22/11 # http://www.impo.com.uy/diariooficial/1974/03/14/3 # http://www.impo.com.uy/diariooficial/1974/09/04/6 Rule Uruguay 1974 only - Jan 13 0:00 1:30 - Rule Uruguay 1974 only - Mar 10 0:00 0:30 - Rule Uruguay 1974 only - Sep 1 0:00 0 - Rule Uruguay 1974 only - Dec 22 0:00 1:00 - Rule Uruguay 1975 only - Mar 30 0:00 0 - Rule Uruguay 1976 only - Dec 19 0:00 1:00 - Rule Uruguay 1977 only - Mar 6 0:00 0 - Rule Uruguay 1977 only - Dec 4 0:00 1:00 - Rule Uruguay 1978 1979 - Mar Sun>=1 0:00 0 - Rule Uruguay 1978 only - Dec 17 0:00 1:00 - Rule Uruguay 1979 only - Apr 29 0:00 1:00 - Rule Uruguay 1980 only - Mar 16 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 725/987 of 1987-12-04 cited "better use of national tourist # attractions" to advance clocks one hour from Monday 1987-12-14 00:00. # http://www.impo.com.uy/diariooficial/1988/01/25/1 Rule Uruguay 1987 only - Dec 14 0:00 1:00 - Rule Uruguay 1988 only - Feb 28 0:00 0 - Rule Uruguay 1988 only - Dec 11 0:00 1:00 - Rule Uruguay 1989 only - Mar 5 0:00 0 - Rule Uruguay 1989 only - Oct 29 0:00 1:00 - Rule Uruguay 1990 only - Feb 25 0:00 0 - # From Tim Parenti (2018-02-15), per Paul Eggert (1999-11-04): # IATA agrees as below for 1990-10 through 1993-02. Per Almanaque 2018, the # 1992/1993 season appears to be the first in over half a century where DST # both began and ended pursuant to the same decree. Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 - Rule Uruguay 1991 1992 - Mar Sun>=1 0:00 0 - Rule Uruguay 1992 only - Oct 18 0:00 1:00 - d1719 2 a1720 4 # From Tim Parenti (2018-02-15): # Decreto 328/004 of 2004-09-15. # http://www.impo.com.uy/diariooficial/2004/09/23/documentos.pdf#page=1 Rule Uruguay 2004 only - Sep 19 0:00 1:00 - d1724 1 a1724 7 # From Tim Parenti (2018-02-15): # This 2005 postponement is not in Almanaque 2018. Go with the contemporaneous # reporting, which is confirmed by Decreto 107/005 of 2005-03-10 amending # Decreto 328/004: # http://www.impo.com.uy/diariooficial/2005/03/15/documentos.pdf#page=1 # The original decree specified a transition of 2005-03-12 24:00, but the new # one specified 2005-03-27 02:00. d1727 8 a1734 13 # ...from 2005-10-09 at 02:00 local time, until 2006-03-12 at 02:00 local time, # official time in Uruguay will be at GMT -2. # From Tim Parenti (2018-02-15): # Decreto 318/005 of 2005-09-19. # http://www.impo.com.uy/diariooficial/2005/09/23/documentos.pdf#page=1 Rule Uruguay 2005 only - Oct 9 2:00 1:00 - Rule Uruguay 2006 2015 - Mar Sun>=8 2:00 0 - # From Tim Parenti (2018-02-15), per Jesper Nørgaard Welen (2006-09-06): # Decreto 311/006 of 2006-09-04 established regular DST from the first Sunday # of October at 02:00 through the second Sunday of March at 02:00. Almanaque # 2018 appears to have a few typoed dates through this period; ignore them. # http://www.impo.com.uy/diariooficial/2006/09/08/documentos.pdf#page=1 Rule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 - d1744 3 a1746 2 # From Tim Parenti (2018-02-15): # Decreto 178/015 of 2015-06-29; repeals Decreto 311/006. d1749 2 a1750 3 Zone America/Montevideo -3:44:51 - LMT 1908 Jun 10 -3:44:51 - MMT 1920 May 1 # Montevideo MT -4:00 - -04 1923 Oct 1 a1751 1 -3:00 Uruguay -03/-0230 1960 d1753 1 a1753 1 -3:00 Uruguay -03/-0230 1970 a1754 1 -3:00 Uruguay -03/-0130 1974 Mar 10 @ 1.1.1.1.4.4.2.5 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 South America and environs d395 1 a395 1 # setting for timestamps past 2038. a927 8 # # From Fábio Gomes (2018-10-04): # The Brazilian president just announced a new change on this year DST. # It was scheduled to start on November 4th and it was changed to November 18th. # From Rodrigo Brüning Wessler (2018-10-15): # The Brazilian government just announced that the change in DST was # canceled.... Maybe the president Michel Temer also woke up one hour # earlier today. :) a1233 18 # From Juan Correa (2018-08-13): # As of moments ago, the Ministry of Energy in Chile has announced the new # schema for DST. ... Announcement in video (in Spanish): # https://twitter.com/MinEnergia/status/1029000399129374720 # From Yonathan Dossow (2018-08-13): # The video says "first Saturday of September", we all know it means Sunday at # midnight. # From Tim Parenti (2018-08-13): # Translating the captions on the video at 0:44-0:55, "We want to announce as # Government that from 2019, Winter Time will be increased to 5 months, between # the first Saturday of April and the first Saturday of September." # At 2:08-2:20, "The Magallanes region will maintain its current time, as # decided by the citizens during 2017, but our Government will promote a # regional dialogue table to gather their opinion on this matter." # https://twitter.com/MinEnergia/status/1029009354001973248 # "We will keep the new time policy unchanged for at least the next 4 years." # So we extend the new rules on Saturdays at 24:00 mainland time indefinitely. d1267 2 a1268 4 Rule Chile 2016 2018 - May Sun>=9 3:00u 0 - Rule Chile 2016 2018 - Aug Sun>=9 4:00u 1:00 - Rule Chile 2019 max - Apr Sun>=2 3:00u 0 - Rule Chile 2019 max - Sep Sun>=2 4:00u 1:00 - @ 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. d14 2 a15 2 # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94. # http://www.jstor.org/stable/1774359 d190 2 a191 2 # Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST # in Argentina from 2008-10-19 until 2009-03-15. d200 2 a201 3 # Press release 235 dated Saturday October 18th, from the Government of the # Province of Jujuy saying it will not apply DST either (even when it was not # included in Decree 1705/2008). d207 1 a207 2 # (an official .gob.ar) under title: "Sin Cambio de Hora" # (English: "No hour change"). d228 3 a230 3 # From Paul Eggert (2014-08-09): # Hora de verano para la República Argentina # http://buenasiembra.com.ar/esoterismo/astrologia/hora-de-verano-de-la-republica-argentina-27.html d303 1 a303 1 # The change is supposed to take place Monday the 21st at 0:00 d335 3 a337 3 # From Paul Eggert (2014-08-12): # Unless otherwise specified, data entries are from Shanks & Pottenger through # 1992, from the IATA otherwise. As noted below, Shanks & Pottenger say that d397 1 a397 1 # According to news reports from El Diario de la República Province San d417 1 a417 1 # http://es.wikipedia.org/wiki/Hora_oficial_argentina d430 2 a431 2 Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May # Córdoba Mean Time d581 2 a582 2 Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May # Córdoba Mean Time d593 2 a594 2 Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May # Córdoba Mean Time d688 1 a688 1 # a) The timezone UTC+5 is extinguished, with all the Acre state and the d725 2 a726 2 # Decretos sobre o Horário de Verão no Brasil. # http://pcdsh01.on.br/DecHV.html d989 1 a989 1 -4:00 - AMT 2008 Jun 24 0:00 d1044 1 a1044 1 -3:00 Brazil BR%sT 1963 Oct 23 0:00 d1085 1 a1085 1 -5:00 - ACT 2008 Jun 24 0:00 d1092 1 a1092 1 -5:00 - ACT 2008 Jun 24 0:00 d1120 2 a1121 2 # From Paul Eggert (2014-08-12): # The following data entries for Chile and America/Santiago are from d1123 1 a1123 1 # Jesper Nørgaard Welen. The data entries for Pacific/Easter are from Shanks d1125 1 a1125 1 # America/Santiago. The pre-1980 Pacific/Easter data entries are dubious, d1149 1 a1149 1 # From Arthur David Olson (2010-03-06): d1152 1 a1152 1 # From Glenn Eychaner (2011-03-02): d1253 1 a1253 1 -4:42:46 - SMT 1910 # Santiago Mean Time d1262 1 a1262 1 -7:00 Chile EAS%sT 1982 Mar 13 21:00 # Easter Time d1303 1 a1303 1 Zone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad d1328 1 a1328 1 -5:00 - ECT # Ecuador Time d1331 1 a1331 1 -6:00 - GALT # Galápagos Time d1430 2 a1431 2 -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time -4:00 Falk FK%sT 1983 May # Falkland Is Time d1433 1 a1433 1 -4:00 Falk FK%sT 2010 Sep 5 2:00 d1444 1 a1444 1 Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown d1481 2 a1482 2 # Noticias, a daily paper in Asunción, Paraguay (2000-10-01): # http://www.diarionoticias.com.py/011000/nacional/naciona1.htm d1509 1 a1509 1 # http://www.presidencia.gov.py/decretos/D1867.pdf d1541 1 a1541 1 -4:00 - PYT 1972 Oct # Paraguay Time d1574 1 a1574 1 Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken d1584 1 a1584 1 -3:40:36 - PMT 1945 Oct # The capital moved? d1586 1 a1586 1 -3:30 - SRT 1984 Oct # Suriname Time d1660 1 a1660 1 # The Uruguayan government has decreed a change in the local time.... d1680 2 a1681 2 -3:44:44 - MMT 1920 May 1 # Montevideo MT -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time d1697 2 a1698 2 -4:30 - VET 1965 # Venezuela Time -4:00 - VET 2007 Dec 9 3:00 @ 1.1.1.3 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 2 a10 3 # From Paul Eggert (2014-10-31): # # Unless otherwise specified, the source for data through 1990 is: d13 4 a16 1 # Unfortunately this book contains many errors and cites no sources. d22 1 a22 2 # of the IATA's data after 1990. Except where otherwise noted, # IATA SSIM is the source for entries after 1990. d24 2 a25 3 # For data circa 1899, a common source is: # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94. # http://www.jstor.org/stable/1774359 @ 1.1.1.4 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 @a1208 5 # From Juan Correa (2015-01-28): # ... today the Ministry of Energy announced that Chile will drop DST, will keep # "summer time" (UTC -3 / UTC -5) all year round.... # http://www.minenergia.cl/ministerio/noticias/generales/ministerio-de-energia-anuncia.html d1250 2 a1251 2 Rule Chile 2012 2015 - Apr Sun>=23 3:00u 0 - Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 S d1262 1 a1262 2 -4:00 Chile CL%sT 2015 Apr 26 3:00u -3:00 - CLT d1265 2 a1266 3 -7:00 Chile EAS%sT 1982 Mar 13 3:00u # Easter Time -6:00 Chile EAS%sT 2015 Apr 26 3:00u -5:00 - EAST @ 1.1.1.5 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 @d1209 4 a1212 7 # From Eduardo Romero Urra (2015-03-03): # Today has been published officially that Chile will use the DST time # permanently until March 25 of 2017 # http://www.diariooficial.interior.gob.cl/media/2015/03/03/1-large.jpg # # From Paul Eggert (2015-03-03): # For now, assume that the extension will persist indefinitely. d1271 1 a1271 1 -7:00 Chile EAS%sT 1982 Mar 14 3:00u # Easter Time a1605 1 Link America/Port_of_Spain America/Antigua @ 1.1.1.6 log @Import tzdata2015e from http://www.iana.org/time-zones/repository/releases/tzdata2015e.tar.gz Summary of changes in tzdata2015e (2015-06-13 10:56:02 -0700): * Morocco will suspend DST from 2015-06-14 03:00 through 2015-07-19 02:00, not 06-13 and 07-18 as we had guessed. * Assume Cayman Islands will observe DST starting next year, using US rules. * The file 'iso3166.tab' now uses UTF-8, so that its entries can better spell the names of Åland Islands, Côte d'Ivoire, and Réunion. Summary of changes in tzdata2015d (2015-04-24 08:09:46 -0700): * Egypt will not observe DST in 2015 and will consider canceling it permanently. For now, assume no DST indefinitely. * America/Whitehorse switched from UTC-9 to UTC-8 on 1967-05-28, not 1966-07-01. * The abbreviations for Hawaii-Aleutian standard and daylight times have been changed from HAST/HADT to HST/HDT, as per US Government Printing Office style. Summary of changes in tzdata2015c (2015-04-11 08:55:55 -0700): * Egypt's spring-forward transition is at 24:00 on April's last Thursday, not 00:00 on April's last Friday. This affects 2015, 2026, 2037, 2043, etc. * Changes to pre-1991 Chile-related time stamps in America/Santiago, Antarctica/Palmer, and Pacific/Easter. * The America/Montreal zone has been turned into a link, as it differed from an existing zone only for pre-1970 time stamps. @ text @d33 1 a33 1 # -- E O Cutler, _New York Times_ (1937-02-14), quoted in a1100 54 # From Paul Eggert (2015-04-03): # Shanks & Pottenger says America/Santiago introduced standard time in # 1890 and rounds its UTC offset to 70W40; guess that in practice this # was the same offset as in 1916-1919. It also says Pacific/Easter # standardized on 109W22 in 1890; assume this didn't change the clocks. # # Dates for America/Santiago from 1910 to 2004 are primarily from # the following source, cited by Oscar van Vlijmen (2006-10-08): # [1] Chile Law # http://www.webexhibits.org/daylightsaving/chile.html # This contains a copy of a this official table: # Cambios en la hora oficial de Chile desde 1900 (retrieved 2008-03-30) # http://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm # [1] needs several corrections, though. # # The first set of corrections is from: # [2] History of the Official Time of Chile # http://www.horaoficial.cl/ing/horaof_ing.html (retrieved 2012-03-06). See: # http://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html # This is an English translation of: # Historia de la hora oficial de Chile (retrieved 2012-10-24). See: # http://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm # A fancier Spanish version (requiring mouse-clicking) is at: # http://www.horaoficial.cl/historia_hora.html # Conflicts between [1] and [2] were resolved as follows: # # - [1] says the 1910 transition was Jan 1, [2] says Jan 10 and cites # Boletín Nº 1, Aviso Nº 1 (1910). Go with [2]. # # - [1] says SMT was -4:42:45, [2] says Chile's official time from # 1916 to 1919 was -4:42:46.3, the meridian of Chile's National # Astronomical Observatory (OAN), then located in what is now # Quinta Normal in Santiago. Go with [2], rounding it to -4:42:46. # # - [1] says the 1918 transition was Sep 1, [2] says Sep 10 and cites # Boletín Nº 22, Aviso Nº 129/1918 (1918-08-23). Go with [2]. # # - [1] does not give times for transitions; assume they occur # at midnight mainland time, the current common practice. However, # go with [2]'s specification of 23:00 for the 1947-05-21 transition. # # Another correction to [1] is from Jesper Nørgaard Welen, who # wrote (2006-10-08), "I think that there are some obvious mistakes in # the suggested link from Oscar van Vlijmen,... for instance entry 66 # says that GMT-4 ended 1990-09-12 while entry 67 only begins GMT-3 at # 1990-09-15 (they should have been 1990-09-15 and 1990-09-16 # respectively), but anyhow it clears up some doubts too." # # Data for Pacific/Easter from 1910 through 1967 come from Shanks & # Pottenger. After that, for lack of better info assume # Pacific/Easter is always two hours behind America/Santiago; # this is known to work for DST transitions starting in 2008 and # may well be true for earlier transitions. d1113 18 d1137 3 a1139 1 # d1141 2 d1148 1 d1150 2 d1155 14 d1170 1 d1172 1 d1176 2 a1177 1 # August, not in October as they have since 1968. d1183 2 a1184 1 # (to leave DST) from March 11 2012 to April 28th 2012.... d1217 3 d1221 1 a1221 1 Rule Chile 1927 1931 - Sep 1 0:00 1:00 S d1223 5 d1238 4 a1241 2 Rule Chile 1988 1990 - Mar Sun>=9 3:00u 0 - Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 S d1264 1 a1264 1 -4:42:46 - SMT 1910 Jan 10 # Santiago Mean Time d1266 4 a1269 10 -4:42:46 - SMT 1918 Sep 10 -4:00 - CLT 1919 Jul 1 -4:42:46 - SMT 1927 Sep 1 -5:00 Chile CL%sT 1932 Sep 1 -4:00 - CLT 1942 Jun 1 -5:00 - CLT 1942 Aug 1 -4:00 - CLT 1946 Jul 15 -4:00 1:00 CLST 1946 Sep 1 # central Chile -4:00 - CLT 1947 Apr 1 -5:00 - CLT 1947 May 21 23:00 d1272 1 a1272 1 Zone Pacific/Easter -7:17:28 - LMT 1890 a1281 19 # Antarctic base using South American rules # (See the file 'antarctica' for more.) # # Palmer, Anvers Island, since 1965 (moved 2 miles in 1968) # # From Ethan Dicks (1996-10-06): # It keeps the same time as Punta Arenas, Chile, because, just like us # and the South Pole, that's the other end of their supply line.... # I verified with someone who was there that since 1980, # Palmer has followed Chile. Prior to that, before the Falklands War, # Palmer used to be supplied from Argentina. # # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Antarctica/Palmer 0 - zzz 1965 -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1982 May -4:00 Chile CL%sT 2015 Apr 26 3:00u -3:00 - CLT @ 1.1.1.7 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 @d134 1 a134 1 # ... The Law itself is "Ley No. 25155", sanctioned on 1999-08-25, enacted d178 7 a184 3 # From Juan Manuel Docile in https://bugs.gentoo.org/240339 (2008-10-07) # via Rodrigo Severo: # Argentinian law No. 25.155 is no longer valid. d186 1 a186 1 # The new one is law No. 26.350 d774 1 a774 1 # DECRETO No. 7.584, DE 13 DE OUTUBRO DE 2011 d1128 1 a1128 1 # Boletín No. 1, Aviso No. 1 (1910). Go with [2]. d1136 1 a1136 1 # Boletín No. 22, Aviso No. 129/1918 (1918-08-23). Go with [2]. d1536 1 a1536 1 # A decree was issued in Paraguay (No. 16350) on 2002-02-26 that changed the d1716 2 a1717 13 # # From Steffen Thorsen (2015-06-30): # ... it looks like they will not be using DST the coming summer: # http://www.elobservador.com.uy/gobierno-resolvio-que-no-habra-cambio-horario-verano-n656787 # http://www.republica.com.uy/este-ano-no-se-modificara-el-huso-horario-en-uruguay/523760/ # From Paul Eggert (2015-06-30): # Apparently restaurateurs complained that DST caused people to go to the beach # instead of out to dinner. # From Pablo Camargo (2015-07-13): # http://archivo.presidencia.gub.uy/sci/decretos/2015/06/cons_min_201.pdf # [dated 2015-06-29; repeals Decree 311/006 dated 2006-09-04] Rule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 S Rule Uruguay 2007 2015 - Mar Sun>=8 2:00 0 - a1725 4 # From Paul Eggert (2015-07-28): # For the 1965 transition see Gaceta Oficial No. 27.619 (1964-12-15), p 205.533 # http://www.pgr.gob.ve/dmdocuments/1964/27619.pdf # d1737 1 a1737 1 -4:30 - VET 1965 Jan 1 0:00 # Venezuela T. @ 1.1.1.8 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 @a1223 14 # From Juan Correa (2016-03-18): # The decree regarding DST has been published in today's Official Gazette: # http://www.diariooficial.interior.gob.cl/versiones-anteriores/do/20160318/ # http://www.leychile.cl/Navegar?idNorma=1088502 # It does consider the second Saturday of May and August as the dates # for the transition; and it lists DST dates until 2019, but I think # this scheme will stick. # # From Paul Eggert (2016-03-18): # For now, assume the pattern holds for the indefinite future. # The decree says transitions occur at 24:00; in practice this appears # to mean 24:00 mainland time, not 24:00 local time, so that Easter # Island is always two hours behind the mainland. d1255 1 a1255 1 Rule Chile 2012 2014 - Apr Sun>=23 3:00u 0 - a1256 2 Rule Chile 2016 max - May Sun>=9 3:00u 0 - Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 S d1273 2 a1274 1 -4:00 Chile CL%sT d1278 2 a1279 1 -6:00 Chile EAS%sT d1301 2 a1302 1 -4:00 Chile CL%sT a1744 15 # From Alexander Krivenyshev (2016-04-15): # https://actualidad.rt.com/actualidad/204758-venezuela-modificar-huso-horario-sequia-elnino # # From Paul Eggert (2016-04-15): # Clocks advance 30 minutes on 2016-05-01 at 02:30. See: # Barboza AD. Huso horario en Venezuela volverá a 4 horas menos con # respecto al "Greenwich". Panorama 2016-04-15 12:20 -0430. # http://www.panorama.com.ve/ciudad/Huso-horario-en-Venezuela-volvera-a-4-horas-menos-con-respecto-al-Greenwich-20160415-0032.html # # "'Venezuela's new time-zone: hours without light, hours without water, # hours of presidential broadcasts, hours of lines," quipped comedian # Jean Mary Curro ...". See: Cawthorne A, Kai D. Venezuela scraps # half-hour time difference set by Chavez. Reuters 2016-04-15 14:50 -0400 # http://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE d1750 1 a1750 2 -4:30 - VET 2016 May 1 2:30 -4:00 - VET @ 1.1.1.8.2.1 log @Sync with HEAD @ text @d413 1 a413 1 # Perhaps San Luis operates on the legal fiction that it is at -04 d415 1 a415 1 # just say it's at -03; see, for example, @ 1.1.1.8.2.2 log @Sync with HEAD @ text @d9 1 a9 1 # From Paul Eggert (2016-12-05): d16 2 a17 2 # Many years ago Gwillim Law wrote that a good source # for time zone data was the International Air Transport d27 26 a52 4 # These tables use numeric abbreviations like -03 and -0330 for # integer hour and minute UTC offsets. Although earlier editions used # alphabetic time zone abbreviations, these abbreviations were # invented and did not reflect common practice. d387 6 d431 5 a435 5 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 d449 7 a455 7 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 d460 8 a467 8 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d472 9 a480 9 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 13 -3:00 Arg -03/-02 d485 10 a494 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 1 -4:00 - -04 1991 May 7 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d499 10 a508 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 1 -4:00 - -04 1991 May 7 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 31 -4:00 - -04 2004 Jul 25 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d513 11 a523 11 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 Mar 4 -4:00 - -04 1990 Oct 28 -4:00 1:00 -03 1991 Mar 17 -4:00 - -04 1991 Oct 6 -3:00 1:00 -02 1992 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d528 10 a537 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d542 14 a555 14 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 Mar 4 -4:00 - -04 1990 Oct 15 -4:00 1:00 -03 1991 Mar 1 -4:00 - -04 1991 Oct 15 -4:00 1:00 -03 1992 Mar 1 -4:00 - -04 1992 Oct 18 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 23 -4:00 - -04 2004 Sep 26 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d564 14 a577 14 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 -3:00 1:00 -02 1990 Mar 14 -4:00 - -04 1990 Oct 15 -4:00 1:00 -03 1991 Mar 1 -4:00 - -04 1991 Jun 1 -3:00 - -03 1999 Oct 3 -4:00 1:00 -03 2000 Mar 3 -3:00 - -03 2004 May 31 -4:00 - -04 2004 Jul 25 -3:00 Arg -03/-02 2008 Jan 21 -4:00 SanLuis -04/-03 2009 Oct 11 -3:00 - -03 d581 9 a589 9 -4:16:48 - CMT 1920 May -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d593 9 a601 9 -4:16:48 - CMT 1920 May -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 30 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d611 1 a611 1 -4:00 - -04 d963 6 a968 6 -2:00 Brazil -02/-01 1990 Sep 17 -2:00 - -02 1999 Sep 30 -2:00 Brazil -02/-01 2000 Oct 15 -2:00 - -02 2001 Sep 13 -2:00 Brazil -02/-01 2002 Oct 1 -2:00 - -02 d981 2 a982 2 -3:00 Brazil -03/-02 1988 Sep 12 -3:00 - -03 d987 3 a989 3 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 2008 Jun 24 0:00 -3:00 - -03 d994 6 a999 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 22 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1003 6 a1008 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 15 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1012 6 a1017 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1995 Sep 14 -3:00 Brazil -03/-02 2003 Sep 24 -3:00 - -03 2012 Oct 21 -3:00 Brazil -03/-02 2013 Sep -3:00 - -03 d1021 8 a1028 8 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1995 Oct 13 -3:00 Brazil -03/-02 1996 Sep 4 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 22 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1034 4 a1037 4 -3:00 Brazil -03/-02 2003 Sep 24 -3:00 - -03 2011 Oct 16 -3:00 Brazil -03/-02 2012 Oct 21 -3:00 - -03 d1043 3 a1045 3 -3:00 Brazil -03/-02 1963 Oct 23 0:00 -3:00 1:00 -02 1964 -3:00 Brazil -03/-02 d1049 1 a1049 1 -4:00 Brazil -04/-03 d1053 3 a1055 3 -4:00 Brazil -04/-03 2003 Sep 24 -4:00 - -04 2004 Oct 1 -4:00 Brazil -04/-03 d1059 2 a1060 2 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 d1064 4 a1067 4 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 1999 Sep 30 -4:00 Brazil -04/-03 2000 Oct 15 -4:00 - -04 d1073 4 a1076 4 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 1993 Sep 28 -4:00 Brazil -04/-03 1994 Sep 22 -4:00 - -04 d1081 6 a1086 6 -5:00 Brazil -05/-04 1988 Sep 12 -5:00 - -05 1993 Sep 28 -5:00 Brazil -05/-04 1994 Sep 22 -5:00 - -05 2008 Jun 24 0:00 -4:00 - -04 2013 Nov 10 -5:00 - -05 d1090 4 a1093 4 -5:00 Brazil -05/-04 1988 Sep 12 -5:00 - -05 2008 Jun 24 0:00 -4:00 - -04 2013 Nov 10 -5:00 - -05 a1237 12 # From Juan Correa (2016-12-04): # Magallanes region ... will keep DST (UTC -3) all year round.... # http://www.soychile.cl/Santiago/Sociedad/2016/12/04/433428/Bachelet-firmo-el-decreto-para-establecer-un-horario-unico-para-la-Region-de-Magallanes.aspx # # From Deborah Goldsmith (2017-01-19): # http://www.diariooficial.interior.gob.cl/publicaciones/2017/01/17/41660/01/1169626.pdf # From Paul Eggert (2017-01-19): # The above says the Magallanes change expires 2019-05-11 at 24:00, # so in theory, they will revert to -04/-03 after that, which means # they will switch from -03 to -04 one hour after Santiago does that day. # For now, assume that they will not revert. d1278 1 a1278 1 -5:00 - -05 1916 Jul 1 d1280 1 a1280 1 -4:00 - -04 1919 Jul 1 d1282 8 a1289 21 -5:00 Chile -05/-04 1932 Sep 1 -4:00 - -04 1942 Jun 1 -5:00 - -05 1942 Aug 1 -4:00 - -04 1946 Jul 15 -4:00 1:00 -03 1946 Sep 1 # central Chile -4:00 - -04 1947 Apr 1 -5:00 - -05 1947 May 21 23:00 -4:00 Chile -04/-03 Zone America/Punta_Arenas -4:43:40 - LMT 1890 -4:42:46 - SMT 1910 Jan 10 -5:00 - -05 1916 Jul 1 -4:42:46 - SMT 1918 Sep 10 -4:00 - -04 1919 Jul 1 -4:42:46 - SMT 1927 Sep 1 -5:00 Chile -05/-04 1932 Sep 1 -4:00 - -04 1942 Jun 1 -5:00 - -05 1942 Aug 1 -4:00 - -04 1947 Apr 1 -5:00 - -05 1947 May 21 23:00 -4:00 Chile -04/-03 2016 Dec 4 -3:00 - -03 d1292 2 a1293 2 -7:00 Chile -07/-06 1982 Mar 14 3:00u # Easter Time -6:00 Chile -06/-05 d1312 4 a1315 5 Zone Antarctica/Palmer 0 - -00 1965 -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1982 May -4:00 Chile -04/-03 2016 Dec 4 -3:00 - -03 d1328 1 a1328 1 -5:00 CO -05/-04 d1352 1 a1352 1 -4:30 - -0430 1965 d1367 5 a1371 18 # From Alois Treindl (2016-12-15): # http://www.elcomercio.com/actualidad/hora-sixto-1993.html # ... Whether the law applied also to Galápagos, I do not know. # From Paul Eggert (2016-12-15): # http://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html # This says President Sixto Durán Ballén signed decree No. 285, which # established DST from 1992-11-28 to 1993-02-05; it does not give transition # times. The people called it "hora de Sixto" ("Sixto hour"). The change did # not go over well; a popular song "Qué hora es" by Jaime Guevara had lyrics # that included "Amanecía en mitad de la noche, los guaguas iban a clase sin # sol" ("It was dawning in the middle of the night, the buses went to class # without sun"). Although Ballén's campaign slogan was "Ni un paso atrás" # (Not one step back), the clocks went back in 1993 and the experiment was not # repeated. For now, assume transitions were at 00:00 local time country-wide. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Ecuador 1992 only - Nov 28 0:00 1:00 S Rule Ecuador 1993 only - Feb 5 0:00 0 - d1376 1 a1376 1 -5:00 Ecuador -05/-04 d1378 2 a1379 2 -5:00 - -05 1986 -6:00 Ecuador -06/-05 d1479 4 a1482 4 -4:00 Falk -04/-03 1983 May -3:00 Falk -03/-02 1985 Sep 15 -4:00 Falk -04/-03 2010 Sep 5 2:00 -3:00 - -03 d1487 2 a1488 2 -4:00 - -04 1967 Oct -3:00 - -03 d1493 3 a1495 2 -3:45 - -0345 1975 Jul 31 -3:00 - -03 1991 d1497 1 a1497 1 -4:00 - -04 d1589 3 a1591 3 -4:00 - -04 1972 Oct -3:00 - -03 1974 Apr -4:00 Para -04/-03 d1618 1 a1618 1 -5:00 Peru -05/-04 d1623 1 a1623 1 -2:00 - -02 d1633 3 a1635 2 -3:30 - -0330 1984 Oct -3:00 - -03 d1738 1 a1738 2 # This Zone can be simplified once we assume zic %z. d1741 2 a1742 6 -3:30 Uruguay -0330/-03 1942 Dec 14 -3:00 Uruguay -03/-02 1968 -3:00 Uruguay -03/-0230 1971 -3:00 Uruguay -03/-02 1974 -3:00 Uruguay -03/-0230 1974 Dec 22 -3:00 Uruguay -03/-02 d1776 4 a1779 4 -4:30 - -0430 1965 Jan 1 0:00 -4:00 - -04 2007 Dec 9 3:00 -4:30 - -0430 2016 May 1 2:30 -4:00 - -04 @ 1.1.1.9 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 @d1312 1 a1312 1 Zone Antarctica/Palmer 0 - -00 1965 d1762 5 a1766 1 # Clocks advance 30 minutes on 2016-05-01 at 02:30.... d1768 2 a1769 2 # hours of presidential broadcasts, hours of lines,' quipped comedian # Jean Mary Curró ...". See: Cawthorne A, Kai D. Venezuela scraps a1771 4 # # From Matt Johnson (2016-04-20): # ... published in the official Gazette [2016-04-18], here: # http://historico.tsj.gob.ve/gaceta_ext/abril/1842016/E-1842016-4551.pdf @ 1.1.1.10 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 @d413 1 a413 1 # Perhaps San Luis operates on the legal fiction that it is at -04 d415 1 a415 1 # just say it's at -03; see, for example, @ 1.1.1.10.2.1 log @Sync with HEAD @ text @d9 1 a9 1 # From Paul Eggert (2016-12-05): d16 2 a17 2 # Many years ago Gwillim Law wrote that a good source # for time zone data was the International Air Transport d27 26 a52 4 # These tables use numeric abbreviations like -03 and -0330 for # integer hour and minute UTC offsets. Although earlier editions used # alphabetic time zone abbreviations, these abbreviations were # invented and did not reflect common practice. d387 6 d431 5 a435 5 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 d449 7 a455 7 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 d460 8 a467 8 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d472 9 a480 9 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 13 -3:00 Arg -03/-02 d485 10 a494 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 1 -4:00 - -04 1991 May 7 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d499 10 a508 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 1 -4:00 - -04 1991 May 7 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 31 -4:00 - -04 2004 Jul 25 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d513 11 a523 11 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 Mar 4 -4:00 - -04 1990 Oct 28 -4:00 1:00 -03 1991 Mar 17 -4:00 - -04 1991 Oct 6 -3:00 1:00 -02 1992 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d528 10 a537 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d542 14 a555 14 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 Mar 4 -4:00 - -04 1990 Oct 15 -4:00 1:00 -03 1991 Mar 1 -4:00 - -04 1991 Oct 15 -4:00 1:00 -03 1992 Mar 1 -4:00 - -04 1992 Oct 18 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 23 -4:00 - -04 2004 Sep 26 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d564 14 a577 14 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 -3:00 1:00 -02 1990 Mar 14 -4:00 - -04 1990 Oct 15 -4:00 1:00 -03 1991 Mar 1 -4:00 - -04 1991 Jun 1 -3:00 - -03 1999 Oct 3 -4:00 1:00 -03 2000 Mar 3 -3:00 - -03 2004 May 31 -4:00 - -04 2004 Jul 25 -3:00 Arg -03/-02 2008 Jan 21 -4:00 SanLuis -04/-03 2009 Oct 11 -3:00 - -03 d581 9 a589 9 -4:16:48 - CMT 1920 May -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d593 9 a601 9 -4:16:48 - CMT 1920 May -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 30 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d611 1 a611 1 -4:00 - -04 d963 6 a968 6 -2:00 Brazil -02/-01 1990 Sep 17 -2:00 - -02 1999 Sep 30 -2:00 Brazil -02/-01 2000 Oct 15 -2:00 - -02 2001 Sep 13 -2:00 Brazil -02/-01 2002 Oct 1 -2:00 - -02 d981 2 a982 2 -3:00 Brazil -03/-02 1988 Sep 12 -3:00 - -03 d987 3 a989 3 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 2008 Jun 24 0:00 -3:00 - -03 d994 6 a999 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 22 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1003 6 a1008 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 15 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1012 6 a1017 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1995 Sep 14 -3:00 Brazil -03/-02 2003 Sep 24 -3:00 - -03 2012 Oct 21 -3:00 Brazil -03/-02 2013 Sep -3:00 - -03 d1021 8 a1028 8 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1995 Oct 13 -3:00 Brazil -03/-02 1996 Sep 4 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 22 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1034 4 a1037 4 -3:00 Brazil -03/-02 2003 Sep 24 -3:00 - -03 2011 Oct 16 -3:00 Brazil -03/-02 2012 Oct 21 -3:00 - -03 d1043 3 a1045 3 -3:00 Brazil -03/-02 1963 Oct 23 0:00 -3:00 1:00 -02 1964 -3:00 Brazil -03/-02 d1049 1 a1049 1 -4:00 Brazil -04/-03 d1053 3 a1055 3 -4:00 Brazil -04/-03 2003 Sep 24 -4:00 - -04 2004 Oct 1 -4:00 Brazil -04/-03 d1059 2 a1060 2 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 d1064 4 a1067 4 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 1999 Sep 30 -4:00 Brazil -04/-03 2000 Oct 15 -4:00 - -04 d1073 4 a1076 4 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 1993 Sep 28 -4:00 Brazil -04/-03 1994 Sep 22 -4:00 - -04 d1081 6 a1086 6 -5:00 Brazil -05/-04 1988 Sep 12 -5:00 - -05 1993 Sep 28 -5:00 Brazil -05/-04 1994 Sep 22 -5:00 - -05 2008 Jun 24 0:00 -4:00 - -04 2013 Nov 10 -5:00 - -05 d1090 4 a1093 4 -5:00 Brazil -05/-04 1988 Sep 12 -5:00 - -05 2008 Jun 24 0:00 -4:00 - -04 2013 Nov 10 -5:00 - -05 a1237 12 # From Juan Correa (2016-12-04): # Magallanes region ... will keep DST (UTC -3) all year round.... # http://www.soychile.cl/Santiago/Sociedad/2016/12/04/433428/Bachelet-firmo-el-decreto-para-establecer-un-horario-unico-para-la-Region-de-Magallanes.aspx # # From Deborah Goldsmith (2017-01-19): # http://www.diariooficial.interior.gob.cl/publicaciones/2017/01/17/41660/01/1169626.pdf # From Paul Eggert (2017-01-19): # The above says the Magallanes change expires 2019-05-11 at 24:00, # so in theory, they will revert to -04/-03 after that, which means # they will switch from -03 to -04 one hour after Santiago does that day. # For now, assume that they will not revert. d1278 1 a1278 1 -5:00 - -05 1916 Jul 1 d1280 1 a1280 1 -4:00 - -04 1919 Jul 1 d1282 8 a1289 21 -5:00 Chile -05/-04 1932 Sep 1 -4:00 - -04 1942 Jun 1 -5:00 - -05 1942 Aug 1 -4:00 - -04 1946 Jul 15 -4:00 1:00 -03 1946 Sep 1 # central Chile -4:00 - -04 1947 Apr 1 -5:00 - -05 1947 May 21 23:00 -4:00 Chile -04/-03 Zone America/Punta_Arenas -4:43:40 - LMT 1890 -4:42:46 - SMT 1910 Jan 10 -5:00 - -05 1916 Jul 1 -4:42:46 - SMT 1918 Sep 10 -4:00 - -04 1919 Jul 1 -4:42:46 - SMT 1927 Sep 1 -5:00 Chile -05/-04 1932 Sep 1 -4:00 - -04 1942 Jun 1 -5:00 - -05 1942 Aug 1 -4:00 - -04 1947 Apr 1 -5:00 - -05 1947 May 21 23:00 -4:00 Chile -04/-03 2016 Dec 4 -3:00 - -03 d1292 2 a1293 2 -7:00 Chile -07/-06 1982 Mar 14 3:00u # Easter Time -6:00 Chile -06/-05 d1313 3 a1315 4 -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1982 May -4:00 Chile -04/-03 2016 Dec 4 -3:00 - -03 d1328 1 a1328 1 -5:00 CO -05/-04 d1352 1 a1352 1 -4:30 - -0430 1965 d1367 5 a1371 18 # From Alois Treindl (2016-12-15): # http://www.elcomercio.com/actualidad/hora-sixto-1993.html # ... Whether the law applied also to Galápagos, I do not know. # From Paul Eggert (2016-12-15): # http://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html # This says President Sixto Durán Ballén signed decree No. 285, which # established DST from 1992-11-28 to 1993-02-05; it does not give transition # times. The people called it "hora de Sixto" ("Sixto hour"). The change did # not go over well; a popular song "Qué hora es" by Jaime Guevara had lyrics # that included "Amanecía en mitad de la noche, los guaguas iban a clase sin # sol" ("It was dawning in the middle of the night, the buses went to class # without sun"). Although Ballén's campaign slogan was "Ni un paso atrás" # (Not one step back), the clocks went back in 1993 and the experiment was not # repeated. For now, assume transitions were at 00:00 local time country-wide. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Ecuador 1992 only - Nov 28 0:00 1:00 S Rule Ecuador 1993 only - Feb 5 0:00 0 - d1376 1 a1376 1 -5:00 Ecuador -05/-04 d1378 2 a1379 2 -5:00 - -05 1986 -6:00 Ecuador -06/-05 d1479 4 a1482 4 -4:00 Falk -04/-03 1983 May -3:00 Falk -03/-02 1985 Sep 15 -4:00 Falk -04/-03 2010 Sep 5 2:00 -3:00 - -03 d1487 2 a1488 2 -4:00 - -04 1967 Oct -3:00 - -03 d1493 3 a1495 2 -3:45 - -0345 1975 Jul 31 -3:00 - -03 1991 d1497 1 a1497 1 -4:00 - -04 d1589 3 a1591 3 -4:00 - -04 1972 Oct -3:00 - -03 1974 Apr -4:00 Para -04/-03 d1618 1 a1618 1 -5:00 Peru -05/-04 d1623 1 a1623 1 -2:00 - -02 d1633 3 a1635 2 -3:30 - -0330 1984 Oct -3:00 - -03 d1738 1 a1738 2 # This Zone can be simplified once we assume zic %z. d1741 2 a1742 6 -3:30 Uruguay -0330/-03 1942 Dec 14 -3:00 Uruguay -03/-02 1968 -3:00 Uruguay -03/-0230 1971 -3:00 Uruguay -03/-02 1974 -3:00 Uruguay -03/-0230 1974 Dec 22 -3:00 Uruguay -03/-02 d1776 4 a1779 4 -4:30 - -0430 1965 Jan 1 0:00 -4:00 - -04 2007 Dec 9 3:00 -4:30 - -0430 2016 May 1 2:30 -4:00 - -04 @ 1.1.1.11 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 (2016-12-05): d16 2 a17 2 # Many years ago Gwillim Law wrote that a good source # for time zone data was the International Air Transport d27 26 a52 4 # These tables use numeric abbreviations like -03 and -0330 for # integer hour and minute UTC offsets. Although earlier editions used # alphabetic time zone abbreviations, these abbreviations were # invented and did not reflect common practice. d387 6 d431 5 a435 5 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 d449 7 a455 7 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 d460 8 a467 8 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d472 9 a480 9 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 13 -3:00 Arg -03/-02 d485 10 a494 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 1 -4:00 - -04 1991 May 7 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d499 10 a508 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 1 -4:00 - -04 1991 May 7 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 31 -4:00 - -04 2004 Jul 25 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d513 11 a523 11 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 Mar 4 -4:00 - -04 1990 Oct 28 -4:00 1:00 -03 1991 Mar 17 -4:00 - -04 1991 Oct 6 -3:00 1:00 -02 1992 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d528 10 a537 10 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1991 Mar 3 -4:00 - -04 1991 Oct 20 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d542 14 a555 14 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 Mar 4 -4:00 - -04 1990 Oct 15 -4:00 1:00 -03 1991 Mar 1 -4:00 - -04 1991 Oct 15 -4:00 1:00 -03 1992 Mar 1 -4:00 - -04 1992 Oct 18 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 23 -4:00 - -04 2004 Sep 26 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d564 14 a577 14 -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1990 -3:00 1:00 -02 1990 Mar 14 -4:00 - -04 1990 Oct 15 -4:00 1:00 -03 1991 Mar 1 -4:00 - -04 1991 Jun 1 -3:00 - -03 1999 Oct 3 -4:00 1:00 -03 2000 Mar 3 -3:00 - -03 2004 May 31 -4:00 - -04 2004 Jul 25 -3:00 Arg -03/-02 2008 Jan 21 -4:00 SanLuis -04/-03 2009 Oct 11 -3:00 - -03 d581 9 a589 9 -4:16:48 - CMT 1920 May -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 Jun 1 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d593 9 a601 9 -4:16:48 - CMT 1920 May -4:00 - -04 1930 Dec -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1999 Oct 3 -4:00 Arg -04/-03 2000 Mar 3 -3:00 - -03 2004 May 30 -4:00 - -04 2004 Jun 20 -3:00 Arg -03/-02 2008 Oct 18 -3:00 - -03 d611 1 a611 1 -4:00 - -04 d963 6 a968 6 -2:00 Brazil -02/-01 1990 Sep 17 -2:00 - -02 1999 Sep 30 -2:00 Brazil -02/-01 2000 Oct 15 -2:00 - -02 2001 Sep 13 -2:00 Brazil -02/-01 2002 Oct 1 -2:00 - -02 d981 2 a982 2 -3:00 Brazil -03/-02 1988 Sep 12 -3:00 - -03 d987 3 a989 3 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 2008 Jun 24 0:00 -3:00 - -03 d994 6 a999 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 22 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1003 6 a1008 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 15 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1012 6 a1017 6 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1995 Sep 14 -3:00 Brazil -03/-02 2003 Sep 24 -3:00 - -03 2012 Oct 21 -3:00 Brazil -03/-02 2013 Sep -3:00 - -03 d1021 8 a1028 8 -3:00 Brazil -03/-02 1990 Sep 17 -3:00 - -03 1995 Oct 13 -3:00 Brazil -03/-02 1996 Sep 4 -3:00 - -03 1999 Sep 30 -3:00 Brazil -03/-02 2000 Oct 22 -3:00 - -03 2001 Sep 13 -3:00 Brazil -03/-02 2002 Oct 1 -3:00 - -03 d1034 4 a1037 4 -3:00 Brazil -03/-02 2003 Sep 24 -3:00 - -03 2011 Oct 16 -3:00 Brazil -03/-02 2012 Oct 21 -3:00 - -03 d1043 3 a1045 3 -3:00 Brazil -03/-02 1963 Oct 23 0:00 -3:00 1:00 -02 1964 -3:00 Brazil -03/-02 d1049 1 a1049 1 -4:00 Brazil -04/-03 d1053 3 a1055 3 -4:00 Brazil -04/-03 2003 Sep 24 -4:00 - -04 2004 Oct 1 -4:00 Brazil -04/-03 d1059 2 a1060 2 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 d1064 4 a1067 4 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 1999 Sep 30 -4:00 Brazil -04/-03 2000 Oct 15 -4:00 - -04 d1073 4 a1076 4 -4:00 Brazil -04/-03 1988 Sep 12 -4:00 - -04 1993 Sep 28 -4:00 Brazil -04/-03 1994 Sep 22 -4:00 - -04 d1081 6 a1086 6 -5:00 Brazil -05/-04 1988 Sep 12 -5:00 - -05 1993 Sep 28 -5:00 Brazil -05/-04 1994 Sep 22 -5:00 - -05 2008 Jun 24 0:00 -4:00 - -04 2013 Nov 10 -5:00 - -05 d1090 4 a1093 4 -5:00 Brazil -05/-04 1988 Sep 12 -5:00 - -05 2008 Jun 24 0:00 -4:00 - -04 2013 Nov 10 -5:00 - -05 a1237 12 # From Juan Correa (2016-12-04): # Magallanes region ... will keep DST (UTC -3) all year round.... # http://www.soychile.cl/Santiago/Sociedad/2016/12/04/433428/Bachelet-firmo-el-decreto-para-establecer-un-horario-unico-para-la-Region-de-Magallanes.aspx # # From Deborah Goldsmith (2017-01-19): # http://www.diariooficial.interior.gob.cl/publicaciones/2017/01/17/41660/01/1169626.pdf # From Paul Eggert (2017-01-19): # The above says the Magallanes change expires 2019-05-11 at 24:00, # so in theory, they will revert to -04/-03 after that, which means # they will switch from -03 to -04 one hour after Santiago does that day. # For now, assume that they will not revert. d1278 1 a1278 1 -5:00 - -05 1916 Jul 1 d1280 1 a1280 1 -4:00 - -04 1919 Jul 1 d1282 8 a1289 21 -5:00 Chile -05/-04 1932 Sep 1 -4:00 - -04 1942 Jun 1 -5:00 - -05 1942 Aug 1 -4:00 - -04 1946 Jul 15 -4:00 1:00 -03 1946 Sep 1 # central Chile -4:00 - -04 1947 Apr 1 -5:00 - -05 1947 May 21 23:00 -4:00 Chile -04/-03 Zone America/Punta_Arenas -4:43:40 - LMT 1890 -4:42:46 - SMT 1910 Jan 10 -5:00 - -05 1916 Jul 1 -4:42:46 - SMT 1918 Sep 10 -4:00 - -04 1919 Jul 1 -4:42:46 - SMT 1927 Sep 1 -5:00 Chile -05/-04 1932 Sep 1 -4:00 - -04 1942 Jun 1 -5:00 - -05 1942 Aug 1 -4:00 - -04 1947 Apr 1 -5:00 - -05 1947 May 21 23:00 -4:00 Chile -04/-03 2016 Dec 4 -3:00 - -03 d1292 2 a1293 2 -7:00 Chile -07/-06 1982 Mar 14 3:00u # Easter Time -6:00 Chile -06/-05 d1313 3 a1315 4 -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1982 May -4:00 Chile -04/-03 2016 Dec 4 -3:00 - -03 d1328 1 a1328 1 -5:00 CO -05/-04 d1352 1 a1352 1 -4:30 - -0430 1965 d1367 5 a1371 18 # From Alois Treindl (2016-12-15): # http://www.elcomercio.com/actualidad/hora-sixto-1993.html # ... Whether the law applied also to Galápagos, I do not know. # From Paul Eggert (2016-12-15): # http://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html # This says President Sixto Durán Ballén signed decree No. 285, which # established DST from 1992-11-28 to 1993-02-05; it does not give transition # times. The people called it "hora de Sixto" ("Sixto hour"). The change did # not go over well; a popular song "Qué hora es" by Jaime Guevara had lyrics # that included "Amanecía en mitad de la noche, los guaguas iban a clase sin # sol" ("It was dawning in the middle of the night, the buses went to class # without sun"). Although Ballén's campaign slogan was "Ni un paso atrás" # (Not one step back), the clocks went back in 1993 and the experiment was not # repeated. For now, assume transitions were at 00:00 local time country-wide. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Ecuador 1992 only - Nov 28 0:00 1:00 S Rule Ecuador 1993 only - Feb 5 0:00 0 - d1376 1 a1376 1 -5:00 Ecuador -05/-04 d1378 2 a1379 2 -5:00 - -05 1986 -6:00 Ecuador -06/-05 d1479 4 a1482 4 -4:00 Falk -04/-03 1983 May -3:00 Falk -03/-02 1985 Sep 15 -4:00 Falk -04/-03 2010 Sep 5 2:00 -3:00 - -03 d1487 2 a1488 2 -4:00 - -04 1967 Oct -3:00 - -03 d1493 3 a1495 2 -3:45 - -0345 1975 Jul 31 -3:00 - -03 1991 d1497 1 a1497 1 -4:00 - -04 d1589 3 a1591 3 -4:00 - -04 1972 Oct -3:00 - -03 1974 Apr -4:00 Para -04/-03 d1618 1 a1618 1 -5:00 Peru -05/-04 d1623 1 a1623 1 -2:00 - -02 d1633 3 a1635 2 -3:30 - -0330 1984 Oct -3:00 - -03 d1738 1 a1738 2 # This Zone can be simplified once we assume zic %z. d1741 2 a1742 6 -3:30 Uruguay -0330/-03 1942 Dec 14 -3:00 Uruguay -03/-02 1968 -3:00 Uruguay -03/-0230 1971 -3:00 Uruguay -03/-02 1974 -3:00 Uruguay -03/-0230 1974 Dec 22 -3:00 Uruguay -03/-02 d1776 4 a1779 4 -4:30 - -0430 1965 Jan 1 0:00 -4:00 - -04 2007 Dec 9 3:00 -4:30 - -0430 2016 May 1 2:30 -4:00 - -04 @ 1.1.1.11.4.1 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 @d25 1 a25 1 # https://www.jstor.org/stable/1774359 d268 2 a269 2 # https://www.lagaceta.com.ar/nota/253414/Economia/Es-inminente-que-en-San-Luis-atrasen-una-hora-los-relojes.html # http://www.worldtimezone.com/dst_news/dst_news_argentina02.html d388 1 a388 1 # https://es.wikipedia.org/wiki/Hora_oficial_argentina d719 1 a719 1 # https://www.timeanddate.com/news/time/brazil-dst-2008-2009.html d728 1 a728 1 # https://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html d754 1 a754 1 # https://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html d760 1 a760 1 # https://www.timeanddate.com/news/time/brazil-starts-dst-2013.html d763 1 a763 1 # https://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html d1079 1 a1079 1 # This contains a copy of this official table: d1081 1 a1081 1 # https://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm d1087 1 a1087 1 # https://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html d1090 1 a1090 1 # https://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm d1366 1 a1366 1 # https://www.elcomercio.com/actualidad/hora-sixto-1993.html d1369 1 a1369 1 # https://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html d1781 1 a1781 1 # https://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE @ 1.1.1.11.4.2 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 @d28 1 a28 1 # integer hour and minute UT offsets. Although earlier editions used d582 1 a582 1 -4:32:36 1:00 BST 1932 Mar 21 # Bolivia ST d911 1 a911 1 Rule Brazil 2008 2017 - Oct Sun>=15 0:00 1:00 S a912 2 # Decree 7,584 (2011-10-13) # added Bahia. a913 4 # Decree 7,826 (2012-10-15) # removed Bahia and added Tocantins. # Decree 8,112 (2013-09-30) # removed Tocantins. a916 7 # From Steffen Thorsen (2017-12-18): # According to many media sources, next year's DST start in Brazil will move to # the first Sunday of November, and it will stay like that for the years after. # ... https://www.timeanddate.com/news/time/brazil-delays-dst-2018.html # From Steffen Thorsen (2017-12-20): # http://www.planalto.gov.br/ccivil_03/_ato2015-2018/2017/decreto/D9242.htm Rule Brazil 2018 max - Nov Sun>=1 0:00 1:00 S d1071 1 a1071 1 # 1890 and rounds its UT offset to 70W40; guess that in practice this @ 1.1.1.11.4.3 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 @d50 1 a50 1 Rule Arg 1930 only - Dec 1 0:00 1:00 - d52 1 a52 1 Rule Arg 1931 only - Oct 15 0:00 1:00 - d54 2 a55 2 Rule Arg 1932 1939 - Nov 1 0:00 1:00 - Rule Arg 1940 only - Jul 1 0:00 1:00 - d57 1 a57 1 Rule Arg 1941 only - Oct 15 0:00 1:00 - d59 1 a59 1 Rule Arg 1943 only - Oct 15 0:00 1:00 - d61 1 a61 1 Rule Arg 1946 only - Oct 1 0:00 1:00 - d63 1 a63 1 Rule Arg 1963 only - Dec 15 0:00 1:00 - d65 1 a65 1 Rule Arg 1964 1966 - Oct 15 0:00 1:00 - d67 1 a67 1 Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 - d69 1 a69 1 Rule Arg 1974 only - Jan 23 0:00 1:00 - d71 1 a71 1 Rule Arg 1988 only - Dec 1 0:00 1:00 - d79 1 a79 1 Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 - d90 1 a90 1 Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 - d193 1 a193 1 Rule Arg 2007 only - Dec 30 0:00 1:00 - d195 1 a195 1 Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 - d205 1 a205 1 # From Paul Eggert (2018-01-31): d210 1 a210 3 # over Shanks & Pottenger. It is upward compatible with Milne, who # says Córdoba time was -4:16:48.2. d384 1 a384 1 # From Paul Eggert (2018-01-23): d386 1 a386 1 # with perpetual daylight saving time, but ordinary usage typically seems to d395 3 d532 1 a532 1 Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 - d774 1 a774 1 Rule Brazil 1931 only - Oct 3 11:00 1:00 - d776 1 a776 1 Rule Brazil 1932 only - Oct 3 0:00 1:00 - d781 1 a781 1 Rule Brazil 1949 1952 - Dec 1 0:00 1:00 - d793 1 a793 1 Rule Brazil 1963 only - Dec 9 0:00 1:00 - d798 1 a798 1 Rule Brazil 1965 only - Jan 31 0:00 1:00 - d801 1 a801 1 Rule Brazil 1965 only - Dec 1 0:00 1:00 - d804 1 a804 1 Rule Brazil 1966 1967 - Nov 1 0:00 1:00 - d808 1 a808 1 Rule Brazil 1985 only - Nov 2 0:00 1:00 - d813 1 a813 1 Rule Brazil 1986 only - Oct 25 0:00 1:00 - d816 1 a816 1 Rule Brazil 1987 only - Oct 25 0:00 1:00 - d820 1 a820 1 Rule Brazil 1988 only - Oct 16 0:00 1:00 - d824 1 a824 1 Rule Brazil 1989 only - Oct 15 0:00 1:00 - d829 1 a829 1 Rule Brazil 1990 only - Oct 21 0:00 1:00 - d833 1 a833 1 Rule Brazil 1991 only - Oct 20 0:00 1:00 - d837 1 a837 1 Rule Brazil 1992 only - Oct 25 0:00 1:00 - d847 1 a847 1 Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 - d852 1 a852 1 Rule Brazil 1996 only - Oct 6 0:00 1:00 - d862 1 a862 1 Rule Brazil 1997 only - Oct 6 0:00 1:00 - d868 1 a868 1 Rule Brazil 1998 only - Oct 11 0:00 1:00 - d874 1 a874 1 Rule Brazil 1999 only - Oct 3 0:00 1:00 - d884 1 a884 1 Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 - d888 1 a888 1 Rule Brazil 2002 only - Nov 3 0:00 1:00 - d891 1 a891 1 Rule Brazil 2003 only - Oct 19 0:00 1:00 - d894 1 a894 1 Rule Brazil 2004 only - Nov 2 0:00 1:00 - d897 1 a897 1 Rule Brazil 2005 only - Oct 16 0:00 1:00 - d900 1 a900 1 Rule Brazil 2006 only - Nov 5 0:00 1:00 - d904 1 a904 1 Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 - d911 1 a911 1 Rule Brazil 2008 2017 - Oct Sun>=15 0:00 1:00 - d929 1 a929 1 Rule Brazil 2018 max - Nov Sun>=1 0:00 1:00 - d1236 1 a1236 1 Rule Chile 1927 1931 - Sep 1 0:00 1:00 - d1238 1 a1238 1 Rule Chile 1968 only - Nov 3 4:00u 1:00 - d1240 1 a1240 1 Rule Chile 1969 only - Nov 23 4:00u 1:00 - d1243 1 a1243 1 Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 - d1245 2 a1246 2 Rule Chile 1973 only - Sep 30 4:00u 1:00 - Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 - d1249 2 a1250 2 Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 - Rule Chile 1990 only - Sep 16 4:00u 1:00 - d1252 1 a1252 1 Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 - d1255 1 a1255 1 Rule Chile 1998 only - Sep 27 4:00u 1:00 - d1257 1 a1257 1 Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 - d1265 1 a1265 1 Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 - d1267 1 a1267 1 Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 - d1269 1 a1269 1 Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 - d1334 1 a1334 1 Rule CO 1992 only - May 3 0:00 1:00 - d1394 1 a1394 1 Rule Ecuador 1992 only - Nov 28 0:00 1:00 - d1484 1 a1484 1 # For now we will assume permanent -03 for the Falklands d1488 1 a1488 1 Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 - d1490 2 a1491 2 Rule Falk 1939 only - Oct 1 0:00 1:00 - Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 - d1493 1 a1493 1 Rule Falk 1983 only - Sep lastSun 0:00 1:00 - d1495 2 a1496 2 Rule Falk 1984 only - Sep 16 0:00 1:00 - Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 - d1499 1 a1499 1 Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 - d1534 1 a1534 1 Rule Para 1975 1988 - Oct 1 0:00 1:00 - d1537 3 a1539 3 Rule Para 1989 only - Oct 22 0:00 1:00 - Rule Para 1990 only - Oct 1 0:00 1:00 - Rule Para 1991 only - Oct 6 0:00 1:00 - d1541 1 a1541 1 Rule Para 1992 only - Oct 5 0:00 1:00 - d1543 1 a1543 1 Rule Para 1993 1995 - Oct 1 0:00 1:00 - d1561 1 a1561 1 Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 - d1572 1 a1572 1 Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 - d1581 1 a1581 1 Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 - d1594 1 a1594 1 Rule Para 2010 max - Oct Sun>=1 0:00 1:00 - d1627 1 a1627 1 Rule Peru 1938 only - Jan 1 0:00 1:00 - d1629 1 a1629 1 Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 - d1631 1 a1631 1 Rule Peru 1986 1987 - Jan 1 0:00 1:00 - d1633 1 a1633 1 Rule Peru 1990 only - Jan 1 0:00 1:00 - d1636 1 a1636 1 Rule Peru 1994 only - Jan 1 0:00 1:00 - d1682 1 a1682 40 # # From Tim Parenti (2018-02-20), per Jeremie Bonjour (2018-01-31) and Michael # Deckers (2018-02-20): # ... At least they kept good records... # # http://www.armada.mil.uy/ContenidosPDFs/sohma/web/almanaque/almanaque_2018.pdf#page=36 # Page 36 of Almanaque 2018, published by the Oceanography, Hydrography, and # Meteorology Service of the Uruguayan Navy, seems to give many transitions # with greater clarity than we've had before. It directly references many laws # and decrees which are, in turn, referenced below. They can be viewed in the # public archives of the Diario Oficial (in Spanish) at # http://www.impo.com.uy/diariooficial/ # # Ley No. 3920 of 1908-06-10 placed the determination of legal time under the # auspices of the National Institute for the Prediction of Time. It is unclear # exactly what offset was used during this period, though Ley No. 7200 of # 1920-04-23 used the Observatory of the National Meteorological Institute in # Montevideo (34° 54' 33" S, 56° 12' 45" W) as its reference meridian, # retarding legal time by 15 minutes 9 seconds from 1920-04-30 24:00, # resulting in UT-04. Assume the corresponding LMT of UT-03:44:51 (given on # page 725 of the Proceedings of the Second Pan-American Scientific Congress, # 1915-1916) was in use, and merely became official from 1908-06-10. # https://www.impo.com.uy/diariooficial/1908/06/18/12 # https://www.impo.com.uy/diariooficial/1920/04/27/9 # # Ley No. 7594 of 1923-06-28 specified legal time as Observatory time advanced # by 44 minutes 51 seconds (UT-03) "from 30 September to 31 March", and by 14 # minutes 51 seconds (UT-03:30) "the rest of the year"; a message from the # National Council of Administration the same day, published directly below the # law in the Diario Oficial, specified the first transition to be 1923-09-30 # 24:00. This effectively established standard time at UT-03:30 with 30 # minutes DST. Assume transitions at 24:00 on the specified days until Ley No. # 7919 of 1926-03-05 ended this arrangement, repealing all "laws and other # provisions which oppose" it, resulting in year-round UT-03:30; a Resolución # of 1926-03-11 puts the final transition at 1926-03-31 24:00, the same as it # would have been under the previous law. # https://www.impo.com.uy/diariooficial/1923/07/02/2 # https://www.impo.com.uy/diariooficial/1926/03/10/2 # https://www.impo.com.uy/diariooficial/1926/03/18/2 # d1684 2 a1685 1 Rule Uruguay 1923 1925 - Oct 1 0:00 0:30 - d1687 13 a1699 61 # From Tim Parenti (2018-02-15): # http://www.impo.com.uy/diariooficial/1933/10/27/6 # # It appears Ley No. 9122 of 1933 was never published as such in the Diario # Oficial, but instead appeared as Document 26 in the Diario on Friday # 1933-10-27 as a decree made Monday 1933-10-23 and filed under the Ministry of # National Defense. It reinstituted a DST of 30 minutes (to UT-03) "from the # last Sunday of October...until the last Saturday of March." In accordance # with this provision, the first transition was explicitly specified in Article # 2 of the decree as Saturday 1933-10-28 at 24:00; that is, Sunday 1933-10-29 # at 00:00. Assume transitions at 00:00 Sunday throughout. # # Departing from the matter-of-fact nature of previous timekeeping laws, the # 1933 decree "consider[s] the advantages of...the advance of legal time": # # "Whereas: The measure adopted by almost all nations at the time of the last # World War still persists in North America and Europe, precisely because of # the economic, hygienic, and social advantages derived from such an # emergency measure... # # Whereas: The advance of the legal time during the summer seasons, by # displacing social activity near sunrise, favors the citizen populations # and especially the society that creates and works..." # # It further specified that "necessary measures" be taken to ensure that # "public spectacles finish, in general, before [01:00]." Rule Uruguay 1933 1938 - Oct lastSun 0:00 0:30 - Rule Uruguay 1934 1941 - Mar lastSat 24:00 0 - # From Tim Parenti (2018-02-15): # Most of the Rules below, and their contemporaneous Zone lines, have been # updated simply to match the Almanaque 2018. Although the document does not # list exact transition times, midnight transitions were already present in our # data here for all transitions through 2004-09, and this is both consistent # with prior transitions and verified in several decrees marked below between # 1939-09 and 2004-09, wherein the relevant text was typically of the form: # # "From 0 hours on [date], the legal time of the entire Republic will be... # # In accordance with [the preceding], on [previous date] at 24 hours, all # clocks throughout the Republic will be [advanced/retarded] by..." # # It is possible that there is greater specificity to be found for the Rules # below, but it is buried in no fewer than 40 different decrees individually # referenced by the Almanaque for the period from 1939-09 to 2014-09. # Four-fifths of these were promulgated less than two weeks before taking # effect; more than half within a week and none more than 5 weeks. Only the # handful with comments below have been checked with any thoroughness. Rule Uruguay 1939 only - Oct 1 0:00 0:30 - Rule Uruguay 1940 only - Oct 27 0:00 0:30 - # From Tim Parenti (2018-02-15): # Decreto 1145 of the Ministry of National Defense, dated 1941-07-26, specified # UT-03 from Friday 1941-08-01 00:00, citing an "urgent...need to save fuel". # http://www.impo.com.uy/diariooficial/1941/08/04/1 Rule Uruguay 1941 only - Aug 1 0:00 0:30 - # From Tim Parenti (2018-02-15): # Decreto 1866 of the Ministry of National Defense, dated 1942-12-09, specified # further advancement (to UT-02:30) from Sunday 1942-12-13 24:00. Since clocks # never went back to UT-03:30 thereafter, this is modeled as advancing standard # time by 30 minutes to UT-03, while retaining 30 minutes of DST. # http://www.impo.com.uy/diariooficial/1942/12/16/3 Rule Uruguay 1942 only - Dec 14 0:00 0:30 - d1701 1 a1701 1 Rule Uruguay 1959 only - May 24 0:00 0:30 - d1703 1 a1703 1 Rule Uruguay 1960 only - Jan 17 0:00 1:00 - d1705 1 a1705 1 Rule Uruguay 1965 only - Apr 4 0:00 1:00 - d1707 22 a1728 52 # From Tim Parenti (2018-02-15): # Decreto 321/968 of 1968-05-25, citing emergency drought measures decreed the # day before, brought clocks forward 30 minutes from Monday 1968-05-27 00:00. # http://www.impo.com.uy/diariooficial/1968/05/30/5 Rule Uruguay 1968 only - May 27 0:00 0:30 - Rule Uruguay 1968 only - Dec 1 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 188/970 of 1970-04-23 instituted restrictions on electricity # consumption "as a consequence of the current rainfall regime in the country". # Articles 13 and 14 advanced clocks by an hour from Saturday 1970-04-25 00:00. # http://www.impo.com.uy/diariooficial/1970/04/29/4 Rule Uruguay 1970 only - Apr 25 0:00 1:00 - Rule Uruguay 1970 only - Jun 14 0:00 0 - Rule Uruguay 1972 only - Apr 23 0:00 1:00 - Rule Uruguay 1972 only - Jul 16 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 29/974 of 1974-01-11, citing "the international rise in the price of # oil", advanced clocks by 90 minutes (to UT-01:30). Decreto 163/974 of # 1974-03-04 returned 60 of those minutes (to UT-02:30), and the remaining 30 # minutes followed in Decreto 679/974 of 1974-08-29. # http://www.impo.com.uy/diariooficial/1974/01/22/11 # http://www.impo.com.uy/diariooficial/1974/03/14/3 # http://www.impo.com.uy/diariooficial/1974/09/04/6 Rule Uruguay 1974 only - Jan 13 0:00 1:30 - Rule Uruguay 1974 only - Mar 10 0:00 0:30 - Rule Uruguay 1974 only - Sep 1 0:00 0 - Rule Uruguay 1974 only - Dec 22 0:00 1:00 - Rule Uruguay 1975 only - Mar 30 0:00 0 - Rule Uruguay 1976 only - Dec 19 0:00 1:00 - Rule Uruguay 1977 only - Mar 6 0:00 0 - Rule Uruguay 1977 only - Dec 4 0:00 1:00 - Rule Uruguay 1978 1979 - Mar Sun>=1 0:00 0 - Rule Uruguay 1978 only - Dec 17 0:00 1:00 - Rule Uruguay 1979 only - Apr 29 0:00 1:00 - Rule Uruguay 1980 only - Mar 16 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 725/987 of 1987-12-04 cited "better use of national tourist # attractions" to advance clocks one hour from Monday 1987-12-14 00:00. # http://www.impo.com.uy/diariooficial/1988/01/25/1 Rule Uruguay 1987 only - Dec 14 0:00 1:00 - Rule Uruguay 1988 only - Feb 28 0:00 0 - Rule Uruguay 1988 only - Dec 11 0:00 1:00 - Rule Uruguay 1989 only - Mar 5 0:00 0 - Rule Uruguay 1989 only - Oct 29 0:00 1:00 - Rule Uruguay 1990 only - Feb 25 0:00 0 - # From Tim Parenti (2018-02-15), per Paul Eggert (1999-11-04): # IATA agrees as below for 1990-10 through 1993-02. Per Almanaque 2018, the # 1992/1993 season appears to be the first in over half a century where DST # both began and ended pursuant to the same decree. Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 - Rule Uruguay 1991 1992 - Mar Sun>=1 0:00 0 - Rule Uruguay 1992 only - Oct 18 0:00 1:00 - d1732 2 a1733 4 # From Tim Parenti (2018-02-15): # Decreto 328/004 of 2004-09-15. # http://www.impo.com.uy/diariooficial/2004/09/23/documentos.pdf#page=1 Rule Uruguay 2004 only - Sep 19 0:00 1:00 - d1737 1 a1737 7 # From Tim Parenti (2018-02-15): # This 2005 postponement is not in Almanaque 2018. Go with the contemporaneous # reporting, which is confirmed by Decreto 107/005 of 2005-03-10 amending # Decreto 328/004: # http://www.impo.com.uy/diariooficial/2005/03/15/documentos.pdf#page=1 # The original decree specified a transition of 2005-03-12 24:00, but the new # one specified 2005-03-27 02:00. d1740 8 a1747 13 # ...from 2005-10-09 at 02:00 local time, until 2006-03-12 at 02:00 local time, # official time in Uruguay will be at GMT -2. # From Tim Parenti (2018-02-15): # Decreto 318/005 of 2005-09-19. # http://www.impo.com.uy/diariooficial/2005/09/23/documentos.pdf#page=1 Rule Uruguay 2005 only - Oct 9 2:00 1:00 - Rule Uruguay 2006 2015 - Mar Sun>=8 2:00 0 - # From Tim Parenti (2018-02-15), per Jesper Nørgaard Welen (2006-09-06): # Decreto 311/006 of 2006-09-04 established regular DST from the first Sunday # of October at 02:00 through the second Sunday of March at 02:00. Almanaque # 2018 appears to have a few typoed dates through this period; ignore them. # http://www.impo.com.uy/diariooficial/2006/09/08/documentos.pdf#page=1 Rule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 - d1757 3 a1759 2 # From Tim Parenti (2018-02-15): # Decreto 178/015 of 2015-06-29; repeals Decreto 311/006. d1762 2 a1763 3 Zone America/Montevideo -3:44:51 - LMT 1908 Jun 10 -3:44:51 - MMT 1920 May 1 # Montevideo MT -4:00 - -04 1923 Oct 1 a1764 1 -3:00 Uruguay -03/-0230 1960 d1766 1 a1766 1 -3:00 Uruguay -03/-0230 1970 a1767 1 -3:00 Uruguay -03/-0130 1974 Mar 10 @ 1.1.1.11.4.4 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 South America and environs d395 1 a395 1 # setting for timestamps past 2038. a927 8 # # From Fábio Gomes (2018-10-04): # The Brazilian president just announced a new change on this year DST. # It was scheduled to start on November 4th and it was changed to November 18th. # From Rodrigo Brüning Wessler (2018-10-15): # The Brazilian government just announced that the change in DST was # canceled.... Maybe the president Michel Temer also woke up one hour # earlier today. :) a1233 18 # From Juan Correa (2018-08-13): # As of moments ago, the Ministry of Energy in Chile has announced the new # schema for DST. ... Announcement in video (in Spanish): # https://twitter.com/MinEnergia/status/1029000399129374720 # From Yonathan Dossow (2018-08-13): # The video says "first Saturday of September", we all know it means Sunday at # midnight. # From Tim Parenti (2018-08-13): # Translating the captions on the video at 0:44-0:55, "We want to announce as # Government that from 2019, Winter Time will be increased to 5 months, between # the first Saturday of April and the first Saturday of September." # At 2:08-2:20, "The Magallanes region will maintain its current time, as # decided by the citizens during 2017, but our Government will promote a # regional dialogue table to gather their opinion on this matter." # https://twitter.com/MinEnergia/status/1029009354001973248 # "We will keep the new time policy unchanged for at least the next 4 years." # So we extend the new rules on Saturdays at 24:00 mainland time indefinitely. d1267 2 a1268 4 Rule Chile 2016 2018 - May Sun>=9 3:00u 0 - Rule Chile 2016 2018 - Aug Sun>=9 4:00u 1:00 - Rule Chile 2019 max - Apr Sun>=2 3:00u 0 - Rule Chile 2019 max - Sep Sun>=2 4:00u 1:00 - @ 1.1.1.11.4.5 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 @d51 1 a51 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d399 1 a399 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d580 1 a580 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d772 1 a772 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d923 1 a923 1 Rule Brazil 2016 2019 - Feb Sun>=15 0:00 0 - d926 1 a926 1 # the first Sunday of November d930 1 d938 13 a950 2 Rule Brazil 2018 only - Nov Sun>=1 0:00 1:00 - # The last ruleset listed above says that the following states observed DST: a951 10 # # From Steffen Thorsen (2019-04-05): # According to multiple sources the Brazilian president wants to get rid of DST. # https://gmconline.com.br/noticias/politica/bolsonaro-horario-de-verao-deve-acabar-este-ano # https://g1.globo.com/economia/noticia/2019/04/05/governo-anuncia-fim-do-horario-de-verao.ghtml # From Marcus Diniz (2019-04-25): # Brazil no longer has DST changes - decree signed today # https://g1.globo.com/politica/noticia/2019/04/25/bolsonaro-assina-decreto-que-acaba-com-o-horario-de-verao.ghtml # From Daniel Soares de Oliveira (2019-04-26): # http://www.planalto.gov.br/ccivil_03/_Ato2019-2022/2019/Decreto/D9772.htm d953 1 a953 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1235 1 d1238 5 a1260 7 # From Juan Correa (2019-02-04): # http://www.diariooficial.interior.gob.cl/publicaciones/2018/11/23/42212/01/1498738.pdf # From Paul Eggert (2019-09-01): # The above says the Magallanes exception expires 2022-04-02 at 24:00, # so in theory, they will revert to -04/-03 after that. # For now, assume that they will not revert, # since they have extended the expiration date once already. d1262 1 a1262 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1301 1 a1301 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1350 1 a1350 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1362 1 a1362 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1365 1 a1365 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1390 1 a1390 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1422 1 a1422 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1426 1 a1426 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1516 1 a1516 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1529 1 a1529 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1538 1 a1538 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1544 1 a1544 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1562 1 a1562 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1638 1 a1638 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1655 1 a1655 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1667 1 a1667 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1673 1 a1673 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1681 1 a1681 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1689 1 a1689 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1751 1 a1751 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1960 1 a1960 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] @ 1.1.1.11.4.6 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 @a402 1 #STDOFF -4:16:48.25 a419 1 #STDOFF -4:16:48.25 a431 1 #STDOFF -4:16:48.25 a443 1 #STDOFF -4:16:48.25 a456 1 #STDOFF -4:16:48.25 a470 1 #STDOFF -4:16:48.25 a484 1 #STDOFF -4:16:48.25 a499 1 #STDOFF -4:16:48.25 a513 1 #STDOFF -4:16:48.25 a535 1 #STDOFF -4:16:48.25 a553 1 #STDOFF -4:16:48.25 a565 1 #STDOFF -4:16:48.25 d577 1 a577 4 # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad -4:30 - -0430 1965 -4:00 - AST d648 1 a648 1 # modern Brazilian ... voting machines which, apparently, can't deal d1089 1 a1089 1 # From Paul Eggert (2022-03-15): d1112 1 a1112 1 # http://www.horaoficial.cl/historia_hora.php d1121 1 a1121 2 # Quinta Normal in Santiago. Go with [1], as this matches the meridian # referred to by the relevant Chilean laws to this day. a1142 33 # From Tim Parenti (2022-07-06): # For a brief period of roughly six weeks in 1946, DST was only observed on an # emergency basis in specific regions of central Chile; namely, "the national # territory between the provinces of Coquimbo and Concepción, inclusive". # This was enacted by Decree 3,891, dated 1946-07-13, and took effect # 1946-07-14 24:00, advancing these central regions to -03. # https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19460715/#page/1 # The decree contemplated "[t]hat this advancement of the Official Time, even # though it has been proposed for the cities of Santiago and Valparaíso only, # must be agreed with that of other cities, due to the connection of various # activities that require it, such as, for example, the operation of rail # services". It was originally set to expire after 30 days but was extended # through 1946-08-31 by Decree 4,506, dated 1946-08-13. # https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19460814/#page/1 # # Law Number 8,522, promulgated 1946-08-27, reunified Chilean clocks at their # new "Summer Time" of -04, reckoned as that of "the meridian of the # Astronomical Observatory of Lo Espejo, advanced by 42 minutes and 45 # seconds". Although this law specified the new Summer Time to start on 1 # September each year, a special "transitional article" started it a few days # early, as soon as the law took effect. As the law was to take force "from # the date of its publication in the 'Diario Oficial', which happened the # following day, presume the change took place in Santiago and its environs # from 24:00 -03 to 23:00 -04 on Wednesday 1946-08-28. Although this was a # no-op for wall clocks in the north and south of the country, put their formal # start to DST an hour later when they reached 24:00 -04. # https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19460828/#page/1 # After a brief "Winter Time" stint at -05 beginning 1947-04-01, Law Number # 8,777, promulgated 1947-05-17, established year-round -04 "from 23:00 on the # second day after it is published in the 'Diario Oficial'." It was published # on Monday 1947-05-19 and so took effect from Wednesday 1947-05-21 23:00. # https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19470519/#page/1 d1255 5 a1259 19 # From Juan Correa (2022-04-02): # I found there was a decree published last Thursday that will keep # Magallanes region to UTC -3 "indefinitely". The decree is available at # https://www.diariooficial.interior.gob.cl/publicaciones/2022/03/31/43217-B/01/2108910.pdf # From Juan Correa (2022-08-09): # the Internal Affairs Ministry (Ministerio del Interior) informed DST # for America/Santiago will start on midnight of September 11th; # and will end on April 1st, 2023. Magallanes region (America/Punta_Arenas) # will keep UTC -3 "indefinitely"... This is because on September 4th # we will have a voting whether to approve a new Constitution. # # From Eduardo Romero Urra (2022-08-17): # https://www.diariooficial.interior.gob.cl/publicaciones/2022/08/13/43327/01/2172567.pdf # # From Paul Eggert (2022-08-17): # Although the presidential decree stops at fall 2026, assume that # similar DST rules will continue thereafter. d1297 1 a1297 3 Rule Chile 2019 2021 - Sep Sun>=2 4:00u 1:00 - Rule Chile 2022 only - Sep Sun>=9 4:00u 1:00 - Rule Chile 2023 max - Sep Sun>=2 4:00u 1:00 - d1301 2 a1302 2 Zone America/Santiago -4:42:45 - LMT 1890 -4:42:45 - SMT 1910 Jan 10 # Santiago Mean Time d1304 1 a1304 1 -4:42:45 - SMT 1918 Sep 10 d1306 1 a1306 1 -4:42:45 - SMT 1927 Sep 1 d1310 3 a1312 3 -4:00 - -04 1946 Jul 14 24:00 -4:00 1:00 -03 1946 Aug 28 24:00 # central CL -5:00 1:00 -04 1947 Mar 31 24:00 d1316 1 a1316 1 -4:42:45 - SMT 1910 Jan 10 d1318 1 a1318 1 -4:42:45 - SMT 1918 Sep 10 d1320 1 a1320 1 -4:42:45 - SMT 1927 Sep 1 d1324 1 a1324 2 -4:00 - -04 1946 Aug 28 24:00 -5:00 1:00 -04 1947 Mar 31 24:00 d1358 1 a1358 1 # Milne gives 4:56:16.4 for Bogotá time in 1899. He writes, a1364 1 #STDOFF -4:56:16.4 d1372 17 a1393 3 Link America/Curacao America/Kralendijk Link America/Curacao America/Lower_Princes # d1397 4 a1400 3 # and contains an apostrophe; use "Lower_Princes".... # From Paul Eggert (2021-09-29): # These backward-compatibility links now are in the 'northamerica' file. a1542 29 # From P Chan (2020-11-27): # https://books.google.com/books?id=5-5CAQAAMAAJ&pg=SA1-PA547 # The Official Gazette of British Guiana. (New Series.) Vol. XL. July to # December, 1915, p 1547, lists as several notes: # "Local Mean Time 3 hours 52 mins. 39 secs. slow of Greenwich Mean Time # (Georgetown.) From 1st August, 1911, British Guiana Standard Mean Time 4 # hours slow of Greenwich Mean Time, by notice in Official Gazette on 1st July, # 1911. From 1st March, 1915, British Guiana Standard Mean Time 3 hours 45 # mins. 0 secs. slow of Greenwich Mean Time, by notice in Official Gazette on # 23rd January, 1915." # # https://parliament.gov.gy/documents/acts/10923-act_no._27_of_1975_-_interpretation_and_general_clauses_(amendment)_act_1975.pdf # Interpretation and general clauses (Amendment) Act 1975 (Act No. 27 of 1975) # [dated 1975-07-31] # "This Act...shall come into operation on 1st August, 1975." # "...where any expression of time occurs...the time referred to shall signify # the standard time of Guyana which shall be three hours behind Greenwich Mean # Time." # # Circular No. 10/1992 dated 1992-03-20 # https://dps.gov.gy/wp-content/uploads/2018/12/1992-03-20-Circular-010.pdf # "...cabinet has decided that with effect from Sunday 29th March, 1992, Guyana # Standard Time would be re-established at 01:00 hours by adjusting the hands # of the clock back to 24:00 hours." # Legislated in the Interpretation and general clauses (Amendment) Act 1992 # (Act No. 6 of 1992) [passed 1992-03-27, published 1992-04-18] # https://parliament.gov.gy/documents/acts/5885-6_of_1992_interpretation_and_general_clauses_(amendment)_act_1992.pdf d1544 4 a1547 4 Zone America/Guyana -3:52:39 - LMT 1911 Aug 1 # Georgetown -4:00 - -04 1915 Mar 1 -3:45 - -0345 1975 Aug 1 -3:00 - -03 1992 Mar 29 1:00 d1692 15 a1706 2 Link America/Port_of_Spain America/Marigot Link America/Port_of_Spain America/St_Barthelemy @ 1.1.1.11.4.7 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 @d211 1 a211 1 # to 1920-05-01 was -4:16:48.25. Go with this more precise value a1426 5 # From Alois Treindl (2022-11-10): # End of time change in Colombia 1993 ... should be 6 February 24h ... # DECRETO 267 DE 1993 # https://www.suin-juriscol.gov.co/viewDocument.asp?ruta=Decretos/1061335 d1428 2 a1429 2 Rule CO 1992 only - May 3 0:00 1:00 - Rule CO 1993 only - Feb 6 24:00 0 - d1446 8 a1715 6 # # From Paul Eggert (2023-07-26): # Transition dates are now set by Law No. 7115, not by presidential decree. # https://www.abc.com.py/politica/2023/07/12/promulgacion-el-cambio-de-hora-sera-por-ley/ # From Carlos Raúl Perasso (2023-07-27): # http://silpy.congreso.gov.py/descarga/ley-144138 @ 1.1.1.11.4.8 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 @a1585 3 # For the 1911/1912 establishment of standard time in French possessions, see: # Société Française de Physique, Recueil de constantes physiques (1913), # page 752, 18b. d1587 1 a1587 1 Zone America/Cayenne -3:29:20 - LMT 1911 Jul 1 @ 1.1.1.12 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 @d25 1 a25 1 # https://www.jstor.org/stable/1774359 d268 2 a269 2 # https://www.lagaceta.com.ar/nota/253414/Economia/Es-inminente-que-en-San-Luis-atrasen-una-hora-los-relojes.html # http://www.worldtimezone.com/dst_news/dst_news_argentina02.html d388 1 a388 1 # https://es.wikipedia.org/wiki/Hora_oficial_argentina d719 1 a719 1 # https://www.timeanddate.com/news/time/brazil-dst-2008-2009.html d728 1 a728 1 # https://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html d754 1 a754 1 # https://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html d760 1 a760 1 # https://www.timeanddate.com/news/time/brazil-starts-dst-2013.html d763 1 a763 1 # https://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html d1079 1 a1079 1 # This contains a copy of this official table: d1081 1 a1081 1 # https://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm d1087 1 a1087 1 # https://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html d1090 1 a1090 1 # https://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm d1366 1 a1366 1 # https://www.elcomercio.com/actualidad/hora-sixto-1993.html d1369 1 a1369 1 # https://www.elcomercio.com/afull/modificacion-husohorario-ecuador-presidentes-decreto.html d1781 1 a1781 1 # https://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE @ 1.1.1.13 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 @d28 1 a28 1 # integer hour and minute UT offsets. Although earlier editions used d582 1 a582 1 -4:32:36 1:00 BST 1932 Mar 21 # Bolivia ST d911 1 a911 1 Rule Brazil 2008 2017 - Oct Sun>=15 0:00 1:00 S a912 2 # Decree 7,584 (2011-10-13) # added Bahia. a913 4 # Decree 7,826 (2012-10-15) # removed Bahia and added Tocantins. # Decree 8,112 (2013-09-30) # removed Tocantins. a916 7 # From Steffen Thorsen (2017-12-18): # According to many media sources, next year's DST start in Brazil will move to # the first Sunday of November, and it will stay like that for the years after. # ... https://www.timeanddate.com/news/time/brazil-delays-dst-2018.html # From Steffen Thorsen (2017-12-20): # http://www.planalto.gov.br/ccivil_03/_ato2015-2018/2017/decreto/D9242.htm Rule Brazil 2018 max - Nov Sun>=1 0:00 1:00 S d1071 1 a1071 1 # 1890 and rounds its UT offset to 70W40; guess that in practice this @ 1.1.1.13.2.1 log @Resolve conflicts between branch and HEAD @ text @d50 1 a50 1 Rule Arg 1930 only - Dec 1 0:00 1:00 - d52 1 a52 1 Rule Arg 1931 only - Oct 15 0:00 1:00 - d54 2 a55 2 Rule Arg 1932 1939 - Nov 1 0:00 1:00 - Rule Arg 1940 only - Jul 1 0:00 1:00 - d57 1 a57 1 Rule Arg 1941 only - Oct 15 0:00 1:00 - d59 1 a59 1 Rule Arg 1943 only - Oct 15 0:00 1:00 - d61 1 a61 1 Rule Arg 1946 only - Oct 1 0:00 1:00 - d63 1 a63 1 Rule Arg 1963 only - Dec 15 0:00 1:00 - d65 1 a65 1 Rule Arg 1964 1966 - Oct 15 0:00 1:00 - d67 1 a67 1 Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 - d69 1 a69 1 Rule Arg 1974 only - Jan 23 0:00 1:00 - d71 1 a71 1 Rule Arg 1988 only - Dec 1 0:00 1:00 - d79 1 a79 1 Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 - d90 1 a90 1 Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 - d193 1 a193 1 Rule Arg 2007 only - Dec 30 0:00 1:00 - d195 1 a195 1 Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 - d205 1 a205 1 # From Paul Eggert (2018-01-31): d210 1 a210 3 # over Shanks & Pottenger. It is upward compatible with Milne, who # says Córdoba time was -4:16:48.2. d384 1 a384 1 # From Paul Eggert (2018-01-23): d386 1 a386 1 # with perpetual daylight saving time, but ordinary usage typically seems to d395 3 d532 1 a532 1 Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 - d774 1 a774 1 Rule Brazil 1931 only - Oct 3 11:00 1:00 - d776 1 a776 1 Rule Brazil 1932 only - Oct 3 0:00 1:00 - d781 1 a781 1 Rule Brazil 1949 1952 - Dec 1 0:00 1:00 - d793 1 a793 1 Rule Brazil 1963 only - Dec 9 0:00 1:00 - d798 1 a798 1 Rule Brazil 1965 only - Jan 31 0:00 1:00 - d801 1 a801 1 Rule Brazil 1965 only - Dec 1 0:00 1:00 - d804 1 a804 1 Rule Brazil 1966 1967 - Nov 1 0:00 1:00 - d808 1 a808 1 Rule Brazil 1985 only - Nov 2 0:00 1:00 - d813 1 a813 1 Rule Brazil 1986 only - Oct 25 0:00 1:00 - d816 1 a816 1 Rule Brazil 1987 only - Oct 25 0:00 1:00 - d820 1 a820 1 Rule Brazil 1988 only - Oct 16 0:00 1:00 - d824 1 a824 1 Rule Brazil 1989 only - Oct 15 0:00 1:00 - d829 1 a829 1 Rule Brazil 1990 only - Oct 21 0:00 1:00 - d833 1 a833 1 Rule Brazil 1991 only - Oct 20 0:00 1:00 - d837 1 a837 1 Rule Brazil 1992 only - Oct 25 0:00 1:00 - d847 1 a847 1 Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 - d852 1 a852 1 Rule Brazil 1996 only - Oct 6 0:00 1:00 - d862 1 a862 1 Rule Brazil 1997 only - Oct 6 0:00 1:00 - d868 1 a868 1 Rule Brazil 1998 only - Oct 11 0:00 1:00 - d874 1 a874 1 Rule Brazil 1999 only - Oct 3 0:00 1:00 - d884 1 a884 1 Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 - d888 1 a888 1 Rule Brazil 2002 only - Nov 3 0:00 1:00 - d891 1 a891 1 Rule Brazil 2003 only - Oct 19 0:00 1:00 - d894 1 a894 1 Rule Brazil 2004 only - Nov 2 0:00 1:00 - d897 1 a897 1 Rule Brazil 2005 only - Oct 16 0:00 1:00 - d900 1 a900 1 Rule Brazil 2006 only - Nov 5 0:00 1:00 - d904 1 a904 1 Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 - d911 1 a911 1 Rule Brazil 2008 2017 - Oct Sun>=15 0:00 1:00 - d929 1 a929 1 Rule Brazil 2018 max - Nov Sun>=1 0:00 1:00 - d1236 1 a1236 1 Rule Chile 1927 1931 - Sep 1 0:00 1:00 - d1238 1 a1238 1 Rule Chile 1968 only - Nov 3 4:00u 1:00 - d1240 1 a1240 1 Rule Chile 1969 only - Nov 23 4:00u 1:00 - d1243 1 a1243 1 Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 - d1245 2 a1246 2 Rule Chile 1973 only - Sep 30 4:00u 1:00 - Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 - d1249 2 a1250 2 Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 - Rule Chile 1990 only - Sep 16 4:00u 1:00 - d1252 1 a1252 1 Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 - d1255 1 a1255 1 Rule Chile 1998 only - Sep 27 4:00u 1:00 - d1257 1 a1257 1 Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 - d1265 1 a1265 1 Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 - d1267 1 a1267 1 Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 - d1269 1 a1269 1 Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 - d1334 1 a1334 1 Rule CO 1992 only - May 3 0:00 1:00 - d1394 1 a1394 1 Rule Ecuador 1992 only - Nov 28 0:00 1:00 - d1484 1 a1484 1 # For now we will assume permanent -03 for the Falklands d1488 1 a1488 1 Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 - d1490 2 a1491 2 Rule Falk 1939 only - Oct 1 0:00 1:00 - Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 - d1493 1 a1493 1 Rule Falk 1983 only - Sep lastSun 0:00 1:00 - d1495 2 a1496 2 Rule Falk 1984 only - Sep 16 0:00 1:00 - Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 - d1499 1 a1499 1 Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 - d1534 1 a1534 1 Rule Para 1975 1988 - Oct 1 0:00 1:00 - d1537 3 a1539 3 Rule Para 1989 only - Oct 22 0:00 1:00 - Rule Para 1990 only - Oct 1 0:00 1:00 - Rule Para 1991 only - Oct 6 0:00 1:00 - d1541 1 a1541 1 Rule Para 1992 only - Oct 5 0:00 1:00 - d1543 1 a1543 1 Rule Para 1993 1995 - Oct 1 0:00 1:00 - d1561 1 a1561 1 Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 - d1572 1 a1572 1 Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 - d1581 1 a1581 1 Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 - d1594 1 a1594 1 Rule Para 2010 max - Oct Sun>=1 0:00 1:00 - d1627 1 a1627 1 Rule Peru 1938 only - Jan 1 0:00 1:00 - d1629 1 a1629 1 Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 - d1631 1 a1631 1 Rule Peru 1986 1987 - Jan 1 0:00 1:00 - d1633 1 a1633 1 Rule Peru 1990 only - Jan 1 0:00 1:00 - d1636 1 a1636 1 Rule Peru 1994 only - Jan 1 0:00 1:00 - d1682 1 a1682 40 # # From Tim Parenti (2018-02-20), per Jeremie Bonjour (2018-01-31) and Michael # Deckers (2018-02-20): # ... At least they kept good records... # # http://www.armada.mil.uy/ContenidosPDFs/sohma/web/almanaque/almanaque_2018.pdf#page=36 # Page 36 of Almanaque 2018, published by the Oceanography, Hydrography, and # Meteorology Service of the Uruguayan Navy, seems to give many transitions # with greater clarity than we've had before. It directly references many laws # and decrees which are, in turn, referenced below. They can be viewed in the # public archives of the Diario Oficial (in Spanish) at # http://www.impo.com.uy/diariooficial/ # # Ley No. 3920 of 1908-06-10 placed the determination of legal time under the # auspices of the National Institute for the Prediction of Time. It is unclear # exactly what offset was used during this period, though Ley No. 7200 of # 1920-04-23 used the Observatory of the National Meteorological Institute in # Montevideo (34° 54' 33" S, 56° 12' 45" W) as its reference meridian, # retarding legal time by 15 minutes 9 seconds from 1920-04-30 24:00, # resulting in UT-04. Assume the corresponding LMT of UT-03:44:51 (given on # page 725 of the Proceedings of the Second Pan-American Scientific Congress, # 1915-1916) was in use, and merely became official from 1908-06-10. # https://www.impo.com.uy/diariooficial/1908/06/18/12 # https://www.impo.com.uy/diariooficial/1920/04/27/9 # # Ley No. 7594 of 1923-06-28 specified legal time as Observatory time advanced # by 44 minutes 51 seconds (UT-03) "from 30 September to 31 March", and by 14 # minutes 51 seconds (UT-03:30) "the rest of the year"; a message from the # National Council of Administration the same day, published directly below the # law in the Diario Oficial, specified the first transition to be 1923-09-30 # 24:00. This effectively established standard time at UT-03:30 with 30 # minutes DST. Assume transitions at 24:00 on the specified days until Ley No. # 7919 of 1926-03-05 ended this arrangement, repealing all "laws and other # provisions which oppose" it, resulting in year-round UT-03:30; a Resolución # of 1926-03-11 puts the final transition at 1926-03-31 24:00, the same as it # would have been under the previous law. # https://www.impo.com.uy/diariooficial/1923/07/02/2 # https://www.impo.com.uy/diariooficial/1926/03/10/2 # https://www.impo.com.uy/diariooficial/1926/03/18/2 # d1684 2 a1685 1 Rule Uruguay 1923 1925 - Oct 1 0:00 0:30 - d1687 13 a1699 61 # From Tim Parenti (2018-02-15): # http://www.impo.com.uy/diariooficial/1933/10/27/6 # # It appears Ley No. 9122 of 1933 was never published as such in the Diario # Oficial, but instead appeared as Document 26 in the Diario on Friday # 1933-10-27 as a decree made Monday 1933-10-23 and filed under the Ministry of # National Defense. It reinstituted a DST of 30 minutes (to UT-03) "from the # last Sunday of October...until the last Saturday of March." In accordance # with this provision, the first transition was explicitly specified in Article # 2 of the decree as Saturday 1933-10-28 at 24:00; that is, Sunday 1933-10-29 # at 00:00. Assume transitions at 00:00 Sunday throughout. # # Departing from the matter-of-fact nature of previous timekeeping laws, the # 1933 decree "consider[s] the advantages of...the advance of legal time": # # "Whereas: The measure adopted by almost all nations at the time of the last # World War still persists in North America and Europe, precisely because of # the economic, hygienic, and social advantages derived from such an # emergency measure... # # Whereas: The advance of the legal time during the summer seasons, by # displacing social activity near sunrise, favors the citizen populations # and especially the society that creates and works..." # # It further specified that "necessary measures" be taken to ensure that # "public spectacles finish, in general, before [01:00]." Rule Uruguay 1933 1938 - Oct lastSun 0:00 0:30 - Rule Uruguay 1934 1941 - Mar lastSat 24:00 0 - # From Tim Parenti (2018-02-15): # Most of the Rules below, and their contemporaneous Zone lines, have been # updated simply to match the Almanaque 2018. Although the document does not # list exact transition times, midnight transitions were already present in our # data here for all transitions through 2004-09, and this is both consistent # with prior transitions and verified in several decrees marked below between # 1939-09 and 2004-09, wherein the relevant text was typically of the form: # # "From 0 hours on [date], the legal time of the entire Republic will be... # # In accordance with [the preceding], on [previous date] at 24 hours, all # clocks throughout the Republic will be [advanced/retarded] by..." # # It is possible that there is greater specificity to be found for the Rules # below, but it is buried in no fewer than 40 different decrees individually # referenced by the Almanaque for the period from 1939-09 to 2014-09. # Four-fifths of these were promulgated less than two weeks before taking # effect; more than half within a week and none more than 5 weeks. Only the # handful with comments below have been checked with any thoroughness. Rule Uruguay 1939 only - Oct 1 0:00 0:30 - Rule Uruguay 1940 only - Oct 27 0:00 0:30 - # From Tim Parenti (2018-02-15): # Decreto 1145 of the Ministry of National Defense, dated 1941-07-26, specified # UT-03 from Friday 1941-08-01 00:00, citing an "urgent...need to save fuel". # http://www.impo.com.uy/diariooficial/1941/08/04/1 Rule Uruguay 1941 only - Aug 1 0:00 0:30 - # From Tim Parenti (2018-02-15): # Decreto 1866 of the Ministry of National Defense, dated 1942-12-09, specified # further advancement (to UT-02:30) from Sunday 1942-12-13 24:00. Since clocks # never went back to UT-03:30 thereafter, this is modeled as advancing standard # time by 30 minutes to UT-03, while retaining 30 minutes of DST. # http://www.impo.com.uy/diariooficial/1942/12/16/3 Rule Uruguay 1942 only - Dec 14 0:00 0:30 - d1701 1 a1701 1 Rule Uruguay 1959 only - May 24 0:00 0:30 - d1703 1 a1703 1 Rule Uruguay 1960 only - Jan 17 0:00 1:00 - d1705 1 a1705 1 Rule Uruguay 1965 only - Apr 4 0:00 1:00 - d1707 22 a1728 52 # From Tim Parenti (2018-02-15): # Decreto 321/968 of 1968-05-25, citing emergency drought measures decreed the # day before, brought clocks forward 30 minutes from Monday 1968-05-27 00:00. # http://www.impo.com.uy/diariooficial/1968/05/30/5 Rule Uruguay 1968 only - May 27 0:00 0:30 - Rule Uruguay 1968 only - Dec 1 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 188/970 of 1970-04-23 instituted restrictions on electricity # consumption "as a consequence of the current rainfall regime in the country". # Articles 13 and 14 advanced clocks by an hour from Saturday 1970-04-25 00:00. # http://www.impo.com.uy/diariooficial/1970/04/29/4 Rule Uruguay 1970 only - Apr 25 0:00 1:00 - Rule Uruguay 1970 only - Jun 14 0:00 0 - Rule Uruguay 1972 only - Apr 23 0:00 1:00 - Rule Uruguay 1972 only - Jul 16 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 29/974 of 1974-01-11, citing "the international rise in the price of # oil", advanced clocks by 90 minutes (to UT-01:30). Decreto 163/974 of # 1974-03-04 returned 60 of those minutes (to UT-02:30), and the remaining 30 # minutes followed in Decreto 679/974 of 1974-08-29. # http://www.impo.com.uy/diariooficial/1974/01/22/11 # http://www.impo.com.uy/diariooficial/1974/03/14/3 # http://www.impo.com.uy/diariooficial/1974/09/04/6 Rule Uruguay 1974 only - Jan 13 0:00 1:30 - Rule Uruguay 1974 only - Mar 10 0:00 0:30 - Rule Uruguay 1974 only - Sep 1 0:00 0 - Rule Uruguay 1974 only - Dec 22 0:00 1:00 - Rule Uruguay 1975 only - Mar 30 0:00 0 - Rule Uruguay 1976 only - Dec 19 0:00 1:00 - Rule Uruguay 1977 only - Mar 6 0:00 0 - Rule Uruguay 1977 only - Dec 4 0:00 1:00 - Rule Uruguay 1978 1979 - Mar Sun>=1 0:00 0 - Rule Uruguay 1978 only - Dec 17 0:00 1:00 - Rule Uruguay 1979 only - Apr 29 0:00 1:00 - Rule Uruguay 1980 only - Mar 16 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 725/987 of 1987-12-04 cited "better use of national tourist # attractions" to advance clocks one hour from Monday 1987-12-14 00:00. # http://www.impo.com.uy/diariooficial/1988/01/25/1 Rule Uruguay 1987 only - Dec 14 0:00 1:00 - Rule Uruguay 1988 only - Feb 28 0:00 0 - Rule Uruguay 1988 only - Dec 11 0:00 1:00 - Rule Uruguay 1989 only - Mar 5 0:00 0 - Rule Uruguay 1989 only - Oct 29 0:00 1:00 - Rule Uruguay 1990 only - Feb 25 0:00 0 - # From Tim Parenti (2018-02-15), per Paul Eggert (1999-11-04): # IATA agrees as below for 1990-10 through 1993-02. Per Almanaque 2018, the # 1992/1993 season appears to be the first in over half a century where DST # both began and ended pursuant to the same decree. Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 - Rule Uruguay 1991 1992 - Mar Sun>=1 0:00 0 - Rule Uruguay 1992 only - Oct 18 0:00 1:00 - d1732 2 a1733 4 # From Tim Parenti (2018-02-15): # Decreto 328/004 of 2004-09-15. # http://www.impo.com.uy/diariooficial/2004/09/23/documentos.pdf#page=1 Rule Uruguay 2004 only - Sep 19 0:00 1:00 - d1737 1 a1737 7 # From Tim Parenti (2018-02-15): # This 2005 postponement is not in Almanaque 2018. Go with the contemporaneous # reporting, which is confirmed by Decreto 107/005 of 2005-03-10 amending # Decreto 328/004: # http://www.impo.com.uy/diariooficial/2005/03/15/documentos.pdf#page=1 # The original decree specified a transition of 2005-03-12 24:00, but the new # one specified 2005-03-27 02:00. d1740 8 a1747 13 # ...from 2005-10-09 at 02:00 local time, until 2006-03-12 at 02:00 local time, # official time in Uruguay will be at GMT -2. # From Tim Parenti (2018-02-15): # Decreto 318/005 of 2005-09-19. # http://www.impo.com.uy/diariooficial/2005/09/23/documentos.pdf#page=1 Rule Uruguay 2005 only - Oct 9 2:00 1:00 - Rule Uruguay 2006 2015 - Mar Sun>=8 2:00 0 - # From Tim Parenti (2018-02-15), per Jesper Nørgaard Welen (2006-09-06): # Decreto 311/006 of 2006-09-04 established regular DST from the first Sunday # of October at 02:00 through the second Sunday of March at 02:00. Almanaque # 2018 appears to have a few typoed dates through this period; ignore them. # http://www.impo.com.uy/diariooficial/2006/09/08/documentos.pdf#page=1 Rule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 - d1757 3 a1759 2 # From Tim Parenti (2018-02-15): # Decreto 178/015 of 2015-06-29; repeals Decreto 311/006. d1762 2 a1763 3 Zone America/Montevideo -3:44:51 - LMT 1908 Jun 10 -3:44:51 - MMT 1920 May 1 # Montevideo MT -4:00 - -04 1923 Oct 1 a1764 1 -3:00 Uruguay -03/-0230 1960 d1766 1 a1766 1 -3:00 Uruguay -03/-0230 1970 a1767 1 -3:00 Uruguay -03/-0130 1974 Mar 10 @ 1.1.1.13.2.2 log @Sync with head @ text @a0 2 # tzdb data for South America and environs d395 1 a395 1 # setting for timestamps past 2038. a927 8 # # From Fábio Gomes (2018-10-04): # The Brazilian president just announced a new change on this year DST. # It was scheduled to start on November 4th and it was changed to November 18th. # From Rodrigo Brüning Wessler (2018-10-15): # The Brazilian government just announced that the change in DST was # canceled.... Maybe the president Michel Temer also woke up one hour # earlier today. :) a1233 18 # From Juan Correa (2018-08-13): # As of moments ago, the Ministry of Energy in Chile has announced the new # schema for DST. ... Announcement in video (in Spanish): # https://twitter.com/MinEnergia/status/1029000399129374720 # From Yonathan Dossow (2018-08-13): # The video says "first Saturday of September", we all know it means Sunday at # midnight. # From Tim Parenti (2018-08-13): # Translating the captions on the video at 0:44-0:55, "We want to announce as # Government that from 2019, Winter Time will be increased to 5 months, between # the first Saturday of April and the first Saturday of September." # At 2:08-2:20, "The Magallanes region will maintain its current time, as # decided by the citizens during 2017, but our Government will promote a # regional dialogue table to gather their opinion on this matter." # https://twitter.com/MinEnergia/status/1029009354001973248 # "We will keep the new time policy unchanged for at least the next 4 years." # So we extend the new rules on Saturdays at 24:00 mainland time indefinitely. d1267 2 a1268 4 Rule Chile 2016 2018 - May Sun>=9 3:00u 0 - Rule Chile 2016 2018 - Aug Sun>=9 4:00u 1:00 - Rule Chile 2019 max - Apr Sun>=2 3:00u 0 - Rule Chile 2019 max - Sep Sun>=2 4:00u 1:00 - @ 1.1.1.14 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 @d50 1 a50 1 Rule Arg 1930 only - Dec 1 0:00 1:00 - d52 1 a52 1 Rule Arg 1931 only - Oct 15 0:00 1:00 - d54 2 a55 2 Rule Arg 1932 1939 - Nov 1 0:00 1:00 - Rule Arg 1940 only - Jul 1 0:00 1:00 - d57 1 a57 1 Rule Arg 1941 only - Oct 15 0:00 1:00 - d59 1 a59 1 Rule Arg 1943 only - Oct 15 0:00 1:00 - d61 1 a61 1 Rule Arg 1946 only - Oct 1 0:00 1:00 - d63 1 a63 1 Rule Arg 1963 only - Dec 15 0:00 1:00 - d65 1 a65 1 Rule Arg 1964 1966 - Oct 15 0:00 1:00 - d67 1 a67 1 Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 - d69 1 a69 1 Rule Arg 1974 only - Jan 23 0:00 1:00 - d71 1 a71 1 Rule Arg 1988 only - Dec 1 0:00 1:00 - d79 1 a79 1 Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 - d90 1 a90 1 Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 - d193 1 a193 1 Rule Arg 2007 only - Dec 30 0:00 1:00 - d195 1 a195 1 Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 - d205 1 a205 1 # From Paul Eggert (2018-01-31): d210 1 a210 3 # over Shanks & Pottenger. It is upward compatible with Milne, who # says Córdoba time was -4:16:48.2. d384 1 a384 1 # From Paul Eggert (2018-01-23): d386 1 a386 1 # with perpetual daylight saving time, but ordinary usage typically seems to d395 3 d532 1 a532 1 Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 - d774 1 a774 1 Rule Brazil 1931 only - Oct 3 11:00 1:00 - d776 1 a776 1 Rule Brazil 1932 only - Oct 3 0:00 1:00 - d781 1 a781 1 Rule Brazil 1949 1952 - Dec 1 0:00 1:00 - d793 1 a793 1 Rule Brazil 1963 only - Dec 9 0:00 1:00 - d798 1 a798 1 Rule Brazil 1965 only - Jan 31 0:00 1:00 - d801 1 a801 1 Rule Brazil 1965 only - Dec 1 0:00 1:00 - d804 1 a804 1 Rule Brazil 1966 1967 - Nov 1 0:00 1:00 - d808 1 a808 1 Rule Brazil 1985 only - Nov 2 0:00 1:00 - d813 1 a813 1 Rule Brazil 1986 only - Oct 25 0:00 1:00 - d816 1 a816 1 Rule Brazil 1987 only - Oct 25 0:00 1:00 - d820 1 a820 1 Rule Brazil 1988 only - Oct 16 0:00 1:00 - d824 1 a824 1 Rule Brazil 1989 only - Oct 15 0:00 1:00 - d829 1 a829 1 Rule Brazil 1990 only - Oct 21 0:00 1:00 - d833 1 a833 1 Rule Brazil 1991 only - Oct 20 0:00 1:00 - d837 1 a837 1 Rule Brazil 1992 only - Oct 25 0:00 1:00 - d847 1 a847 1 Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 - d852 1 a852 1 Rule Brazil 1996 only - Oct 6 0:00 1:00 - d862 1 a862 1 Rule Brazil 1997 only - Oct 6 0:00 1:00 - d868 1 a868 1 Rule Brazil 1998 only - Oct 11 0:00 1:00 - d874 1 a874 1 Rule Brazil 1999 only - Oct 3 0:00 1:00 - d884 1 a884 1 Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 - d888 1 a888 1 Rule Brazil 2002 only - Nov 3 0:00 1:00 - d891 1 a891 1 Rule Brazil 2003 only - Oct 19 0:00 1:00 - d894 1 a894 1 Rule Brazil 2004 only - Nov 2 0:00 1:00 - d897 1 a897 1 Rule Brazil 2005 only - Oct 16 0:00 1:00 - d900 1 a900 1 Rule Brazil 2006 only - Nov 5 0:00 1:00 - d904 1 a904 1 Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 - d911 1 a911 1 Rule Brazil 2008 2017 - Oct Sun>=15 0:00 1:00 - d929 1 a929 1 Rule Brazil 2018 max - Nov Sun>=1 0:00 1:00 - d1236 1 a1236 1 Rule Chile 1927 1931 - Sep 1 0:00 1:00 - d1238 1 a1238 1 Rule Chile 1968 only - Nov 3 4:00u 1:00 - d1240 1 a1240 1 Rule Chile 1969 only - Nov 23 4:00u 1:00 - d1243 1 a1243 1 Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 - d1245 2 a1246 2 Rule Chile 1973 only - Sep 30 4:00u 1:00 - Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 - d1249 2 a1250 2 Rule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 - Rule Chile 1990 only - Sep 16 4:00u 1:00 - d1252 1 a1252 1 Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 - d1255 1 a1255 1 Rule Chile 1998 only - Sep 27 4:00u 1:00 - d1257 1 a1257 1 Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 - d1265 1 a1265 1 Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 - d1267 1 a1267 1 Rule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 - d1269 1 a1269 1 Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 - d1334 1 a1334 1 Rule CO 1992 only - May 3 0:00 1:00 - d1394 1 a1394 1 Rule Ecuador 1992 only - Nov 28 0:00 1:00 - d1484 1 a1484 1 # For now we will assume permanent -03 for the Falklands d1488 1 a1488 1 Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 - d1490 2 a1491 2 Rule Falk 1939 only - Oct 1 0:00 1:00 - Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 - d1493 1 a1493 1 Rule Falk 1983 only - Sep lastSun 0:00 1:00 - d1495 2 a1496 2 Rule Falk 1984 only - Sep 16 0:00 1:00 - Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 - d1499 1 a1499 1 Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 - d1534 1 a1534 1 Rule Para 1975 1988 - Oct 1 0:00 1:00 - d1537 3 a1539 3 Rule Para 1989 only - Oct 22 0:00 1:00 - Rule Para 1990 only - Oct 1 0:00 1:00 - Rule Para 1991 only - Oct 6 0:00 1:00 - d1541 1 a1541 1 Rule Para 1992 only - Oct 5 0:00 1:00 - d1543 1 a1543 1 Rule Para 1993 1995 - Oct 1 0:00 1:00 - d1561 1 a1561 1 Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 - d1572 1 a1572 1 Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 - d1581 1 a1581 1 Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 - d1594 1 a1594 1 Rule Para 2010 max - Oct Sun>=1 0:00 1:00 - d1627 1 a1627 1 Rule Peru 1938 only - Jan 1 0:00 1:00 - d1629 1 a1629 1 Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 - d1631 1 a1631 1 Rule Peru 1986 1987 - Jan 1 0:00 1:00 - d1633 1 a1633 1 Rule Peru 1990 only - Jan 1 0:00 1:00 - d1636 1 a1636 1 Rule Peru 1994 only - Jan 1 0:00 1:00 - d1682 1 a1682 40 # # From Tim Parenti (2018-02-20), per Jeremie Bonjour (2018-01-31) and Michael # Deckers (2018-02-20): # ... At least they kept good records... # # http://www.armada.mil.uy/ContenidosPDFs/sohma/web/almanaque/almanaque_2018.pdf#page=36 # Page 36 of Almanaque 2018, published by the Oceanography, Hydrography, and # Meteorology Service of the Uruguayan Navy, seems to give many transitions # with greater clarity than we've had before. It directly references many laws # and decrees which are, in turn, referenced below. They can be viewed in the # public archives of the Diario Oficial (in Spanish) at # http://www.impo.com.uy/diariooficial/ # # Ley No. 3920 of 1908-06-10 placed the determination of legal time under the # auspices of the National Institute for the Prediction of Time. It is unclear # exactly what offset was used during this period, though Ley No. 7200 of # 1920-04-23 used the Observatory of the National Meteorological Institute in # Montevideo (34° 54' 33" S, 56° 12' 45" W) as its reference meridian, # retarding legal time by 15 minutes 9 seconds from 1920-04-30 24:00, # resulting in UT-04. Assume the corresponding LMT of UT-03:44:51 (given on # page 725 of the Proceedings of the Second Pan-American Scientific Congress, # 1915-1916) was in use, and merely became official from 1908-06-10. # https://www.impo.com.uy/diariooficial/1908/06/18/12 # https://www.impo.com.uy/diariooficial/1920/04/27/9 # # Ley No. 7594 of 1923-06-28 specified legal time as Observatory time advanced # by 44 minutes 51 seconds (UT-03) "from 30 September to 31 March", and by 14 # minutes 51 seconds (UT-03:30) "the rest of the year"; a message from the # National Council of Administration the same day, published directly below the # law in the Diario Oficial, specified the first transition to be 1923-09-30 # 24:00. This effectively established standard time at UT-03:30 with 30 # minutes DST. Assume transitions at 24:00 on the specified days until Ley No. # 7919 of 1926-03-05 ended this arrangement, repealing all "laws and other # provisions which oppose" it, resulting in year-round UT-03:30; a Resolución # of 1926-03-11 puts the final transition at 1926-03-31 24:00, the same as it # would have been under the previous law. # https://www.impo.com.uy/diariooficial/1923/07/02/2 # https://www.impo.com.uy/diariooficial/1926/03/10/2 # https://www.impo.com.uy/diariooficial/1926/03/18/2 # d1684 2 a1685 1 Rule Uruguay 1923 1925 - Oct 1 0:00 0:30 - d1687 13 a1699 61 # From Tim Parenti (2018-02-15): # http://www.impo.com.uy/diariooficial/1933/10/27/6 # # It appears Ley No. 9122 of 1933 was never published as such in the Diario # Oficial, but instead appeared as Document 26 in the Diario on Friday # 1933-10-27 as a decree made Monday 1933-10-23 and filed under the Ministry of # National Defense. It reinstituted a DST of 30 minutes (to UT-03) "from the # last Sunday of October...until the last Saturday of March." In accordance # with this provision, the first transition was explicitly specified in Article # 2 of the decree as Saturday 1933-10-28 at 24:00; that is, Sunday 1933-10-29 # at 00:00. Assume transitions at 00:00 Sunday throughout. # # Departing from the matter-of-fact nature of previous timekeeping laws, the # 1933 decree "consider[s] the advantages of...the advance of legal time": # # "Whereas: The measure adopted by almost all nations at the time of the last # World War still persists in North America and Europe, precisely because of # the economic, hygienic, and social advantages derived from such an # emergency measure... # # Whereas: The advance of the legal time during the summer seasons, by # displacing social activity near sunrise, favors the citizen populations # and especially the society that creates and works..." # # It further specified that "necessary measures" be taken to ensure that # "public spectacles finish, in general, before [01:00]." Rule Uruguay 1933 1938 - Oct lastSun 0:00 0:30 - Rule Uruguay 1934 1941 - Mar lastSat 24:00 0 - # From Tim Parenti (2018-02-15): # Most of the Rules below, and their contemporaneous Zone lines, have been # updated simply to match the Almanaque 2018. Although the document does not # list exact transition times, midnight transitions were already present in our # data here for all transitions through 2004-09, and this is both consistent # with prior transitions and verified in several decrees marked below between # 1939-09 and 2004-09, wherein the relevant text was typically of the form: # # "From 0 hours on [date], the legal time of the entire Republic will be... # # In accordance with [the preceding], on [previous date] at 24 hours, all # clocks throughout the Republic will be [advanced/retarded] by..." # # It is possible that there is greater specificity to be found for the Rules # below, but it is buried in no fewer than 40 different decrees individually # referenced by the Almanaque for the period from 1939-09 to 2014-09. # Four-fifths of these were promulgated less than two weeks before taking # effect; more than half within a week and none more than 5 weeks. Only the # handful with comments below have been checked with any thoroughness. Rule Uruguay 1939 only - Oct 1 0:00 0:30 - Rule Uruguay 1940 only - Oct 27 0:00 0:30 - # From Tim Parenti (2018-02-15): # Decreto 1145 of the Ministry of National Defense, dated 1941-07-26, specified # UT-03 from Friday 1941-08-01 00:00, citing an "urgent...need to save fuel". # http://www.impo.com.uy/diariooficial/1941/08/04/1 Rule Uruguay 1941 only - Aug 1 0:00 0:30 - # From Tim Parenti (2018-02-15): # Decreto 1866 of the Ministry of National Defense, dated 1942-12-09, specified # further advancement (to UT-02:30) from Sunday 1942-12-13 24:00. Since clocks # never went back to UT-03:30 thereafter, this is modeled as advancing standard # time by 30 minutes to UT-03, while retaining 30 minutes of DST. # http://www.impo.com.uy/diariooficial/1942/12/16/3 Rule Uruguay 1942 only - Dec 14 0:00 0:30 - d1701 1 a1701 1 Rule Uruguay 1959 only - May 24 0:00 0:30 - d1703 1 a1703 1 Rule Uruguay 1960 only - Jan 17 0:00 1:00 - d1705 1 a1705 1 Rule Uruguay 1965 only - Apr 4 0:00 1:00 - d1707 22 a1728 52 # From Tim Parenti (2018-02-15): # Decreto 321/968 of 1968-05-25, citing emergency drought measures decreed the # day before, brought clocks forward 30 minutes from Monday 1968-05-27 00:00. # http://www.impo.com.uy/diariooficial/1968/05/30/5 Rule Uruguay 1968 only - May 27 0:00 0:30 - Rule Uruguay 1968 only - Dec 1 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 188/970 of 1970-04-23 instituted restrictions on electricity # consumption "as a consequence of the current rainfall regime in the country". # Articles 13 and 14 advanced clocks by an hour from Saturday 1970-04-25 00:00. # http://www.impo.com.uy/diariooficial/1970/04/29/4 Rule Uruguay 1970 only - Apr 25 0:00 1:00 - Rule Uruguay 1970 only - Jun 14 0:00 0 - Rule Uruguay 1972 only - Apr 23 0:00 1:00 - Rule Uruguay 1972 only - Jul 16 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 29/974 of 1974-01-11, citing "the international rise in the price of # oil", advanced clocks by 90 minutes (to UT-01:30). Decreto 163/974 of # 1974-03-04 returned 60 of those minutes (to UT-02:30), and the remaining 30 # minutes followed in Decreto 679/974 of 1974-08-29. # http://www.impo.com.uy/diariooficial/1974/01/22/11 # http://www.impo.com.uy/diariooficial/1974/03/14/3 # http://www.impo.com.uy/diariooficial/1974/09/04/6 Rule Uruguay 1974 only - Jan 13 0:00 1:30 - Rule Uruguay 1974 only - Mar 10 0:00 0:30 - Rule Uruguay 1974 only - Sep 1 0:00 0 - Rule Uruguay 1974 only - Dec 22 0:00 1:00 - Rule Uruguay 1975 only - Mar 30 0:00 0 - Rule Uruguay 1976 only - Dec 19 0:00 1:00 - Rule Uruguay 1977 only - Mar 6 0:00 0 - Rule Uruguay 1977 only - Dec 4 0:00 1:00 - Rule Uruguay 1978 1979 - Mar Sun>=1 0:00 0 - Rule Uruguay 1978 only - Dec 17 0:00 1:00 - Rule Uruguay 1979 only - Apr 29 0:00 1:00 - Rule Uruguay 1980 only - Mar 16 0:00 0 - # From Tim Parenti (2018-02-15): # Decreto 725/987 of 1987-12-04 cited "better use of national tourist # attractions" to advance clocks one hour from Monday 1987-12-14 00:00. # http://www.impo.com.uy/diariooficial/1988/01/25/1 Rule Uruguay 1987 only - Dec 14 0:00 1:00 - Rule Uruguay 1988 only - Feb 28 0:00 0 - Rule Uruguay 1988 only - Dec 11 0:00 1:00 - Rule Uruguay 1989 only - Mar 5 0:00 0 - Rule Uruguay 1989 only - Oct 29 0:00 1:00 - Rule Uruguay 1990 only - Feb 25 0:00 0 - # From Tim Parenti (2018-02-15), per Paul Eggert (1999-11-04): # IATA agrees as below for 1990-10 through 1993-02. Per Almanaque 2018, the # 1992/1993 season appears to be the first in over half a century where DST # both began and ended pursuant to the same decree. Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 - Rule Uruguay 1991 1992 - Mar Sun>=1 0:00 0 - Rule Uruguay 1992 only - Oct 18 0:00 1:00 - d1732 2 a1733 4 # From Tim Parenti (2018-02-15): # Decreto 328/004 of 2004-09-15. # http://www.impo.com.uy/diariooficial/2004/09/23/documentos.pdf#page=1 Rule Uruguay 2004 only - Sep 19 0:00 1:00 - d1737 1 a1737 7 # From Tim Parenti (2018-02-15): # This 2005 postponement is not in Almanaque 2018. Go with the contemporaneous # reporting, which is confirmed by Decreto 107/005 of 2005-03-10 amending # Decreto 328/004: # http://www.impo.com.uy/diariooficial/2005/03/15/documentos.pdf#page=1 # The original decree specified a transition of 2005-03-12 24:00, but the new # one specified 2005-03-27 02:00. d1740 8 a1747 13 # ...from 2005-10-09 at 02:00 local time, until 2006-03-12 at 02:00 local time, # official time in Uruguay will be at GMT -2. # From Tim Parenti (2018-02-15): # Decreto 318/005 of 2005-09-19. # http://www.impo.com.uy/diariooficial/2005/09/23/documentos.pdf#page=1 Rule Uruguay 2005 only - Oct 9 2:00 1:00 - Rule Uruguay 2006 2015 - Mar Sun>=8 2:00 0 - # From Tim Parenti (2018-02-15), per Jesper Nørgaard Welen (2006-09-06): # Decreto 311/006 of 2006-09-04 established regular DST from the first Sunday # of October at 02:00 through the second Sunday of March at 02:00. Almanaque # 2018 appears to have a few typoed dates through this period; ignore them. # http://www.impo.com.uy/diariooficial/2006/09/08/documentos.pdf#page=1 Rule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 - d1757 3 a1759 2 # From Tim Parenti (2018-02-15): # Decreto 178/015 of 2015-06-29; repeals Decreto 311/006. d1762 2 a1763 3 Zone America/Montevideo -3:44:51 - LMT 1908 Jun 10 -3:44:51 - MMT 1920 May 1 # Montevideo MT -4:00 - -04 1923 Oct 1 a1764 1 -3:00 Uruguay -03/-0230 1960 d1766 1 a1766 1 -3:00 Uruguay -03/-0230 1970 a1767 1 -3:00 Uruguay -03/-0130 1974 Mar 10 @ 1.1.1.14.2.1 log @Sync with HEAD @ text @a0 2 # tzdb data for South America and environs d395 1 a395 1 # setting for timestamps past 2038. a927 8 # # From Fábio Gomes (2018-10-04): # The Brazilian president just announced a new change on this year DST. # It was scheduled to start on November 4th and it was changed to November 18th. # From Rodrigo Brüning Wessler (2018-10-15): # The Brazilian government just announced that the change in DST was # canceled.... Maybe the president Michel Temer also woke up one hour # earlier today. :) a1233 18 # From Juan Correa (2018-08-13): # As of moments ago, the Ministry of Energy in Chile has announced the new # schema for DST. ... Announcement in video (in Spanish): # https://twitter.com/MinEnergia/status/1029000399129374720 # From Yonathan Dossow (2018-08-13): # The video says "first Saturday of September", we all know it means Sunday at # midnight. # From Tim Parenti (2018-08-13): # Translating the captions on the video at 0:44-0:55, "We want to announce as # Government that from 2019, Winter Time will be increased to 5 months, between # the first Saturday of April and the first Saturday of September." # At 2:08-2:20, "The Magallanes region will maintain its current time, as # decided by the citizens during 2017, but our Government will promote a # regional dialogue table to gather their opinion on this matter." # https://twitter.com/MinEnergia/status/1029009354001973248 # "We will keep the new time policy unchanged for at least the next 4 years." # So we extend the new rules on Saturdays at 24:00 mainland time indefinitely. d1267 2 a1268 4 Rule Chile 2016 2018 - May Sun>=9 3:00u 0 - Rule Chile 2016 2018 - Aug Sun>=9 4:00u 1:00 - Rule Chile 2019 max - Apr Sun>=2 3:00u 0 - Rule Chile 2019 max - Sep Sun>=2 4:00u 1:00 - @ 1.1.1.14.2.2 log @Mostly merge changes from HEAD upto 20200411 @ text @d399 1 a399 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d580 1 a580 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d923 1 a923 1 Rule Brazil 2016 2019 - Feb Sun>=15 0:00 0 - d926 1 a926 1 # the first Sunday of November d930 1 d938 13 a950 2 Rule Brazil 2018 only - Nov Sun>=1 0:00 1:00 - # The last ruleset listed above says that the following states observed DST: a951 10 # # From Steffen Thorsen (2019-04-05): # According to multiple sources the Brazilian president wants to get rid of DST. # https://gmconline.com.br/noticias/politica/bolsonaro-horario-de-verao-deve-acabar-este-ano # https://g1.globo.com/economia/noticia/2019/04/05/governo-anuncia-fim-do-horario-de-verao.ghtml # From Marcus Diniz (2019-04-25): # Brazil no longer has DST changes - decree signed today # https://g1.globo.com/politica/noticia/2019/04/25/bolsonaro-assina-decreto-que-acaba-com-o-horario-de-verao.ghtml # From Daniel Soares de Oliveira (2019-04-26): # http://www.planalto.gov.br/ccivil_03/_Ato2019-2022/2019/Decreto/D9772.htm d953 1 a953 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1235 1 d1238 5 a1260 7 # From Juan Correa (2019-02-04): # http://www.diariooficial.interior.gob.cl/publicaciones/2018/11/23/42212/01/1498738.pdf # From Paul Eggert (2019-09-01): # The above says the Magallanes exception expires 2022-04-02 at 24:00, # so in theory, they will revert to -04/-03 after that. # For now, assume that they will not revert, # since they have extended the expiration date once already. d1301 1 a1301 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1350 1 a1350 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1365 1 a1365 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1390 1 a1390 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1426 1 a1426 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1529 1 a1529 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1538 1 a1538 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1544 1 a1544 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1638 1 a1638 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1667 1 a1667 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1673 1 a1673 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1681 1 a1681 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1689 1 a1689 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1960 1 a1960 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] @ 1.1.1.15 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 South America and environs d395 1 a395 1 # setting for timestamps past 2038. a927 8 # # From Fábio Gomes (2018-10-04): # The Brazilian president just announced a new change on this year DST. # It was scheduled to start on November 4th and it was changed to November 18th. # From Rodrigo Brüning Wessler (2018-10-15): # The Brazilian government just announced that the change in DST was # canceled.... Maybe the president Michel Temer also woke up one hour # earlier today. :) a1233 18 # From Juan Correa (2018-08-13): # As of moments ago, the Ministry of Energy in Chile has announced the new # schema for DST. ... Announcement in video (in Spanish): # https://twitter.com/MinEnergia/status/1029000399129374720 # From Yonathan Dossow (2018-08-13): # The video says "first Saturday of September", we all know it means Sunday at # midnight. # From Tim Parenti (2018-08-13): # Translating the captions on the video at 0:44-0:55, "We want to announce as # Government that from 2019, Winter Time will be increased to 5 months, between # the first Saturday of April and the first Saturday of September." # At 2:08-2:20, "The Magallanes region will maintain its current time, as # decided by the citizens during 2017, but our Government will promote a # regional dialogue table to gather their opinion on this matter." # https://twitter.com/MinEnergia/status/1029009354001973248 # "We will keep the new time policy unchanged for at least the next 4 years." # So we extend the new rules on Saturdays at 24:00 mainland time indefinitely. d1267 2 a1268 4 Rule Chile 2016 2018 - May Sun>=9 3:00u 0 - Rule Chile 2016 2018 - Aug Sun>=9 4:00u 1:00 - Rule Chile 2019 max - Apr Sun>=2 3:00u 0 - Rule Chile 2019 max - Sep Sun>=2 4:00u 1:00 - @ 1.1.1.15.2.1 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 @d399 1 a399 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d580 1 a580 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d923 1 a923 1 Rule Brazil 2016 2019 - Feb Sun>=15 0:00 0 - d926 1 a926 1 # the first Sunday of November d930 1 d938 13 a950 2 Rule Brazil 2018 only - Nov Sun>=1 0:00 1:00 - # The last ruleset listed above says that the following states observed DST: a951 10 # # From Steffen Thorsen (2019-04-05): # According to multiple sources the Brazilian president wants to get rid of DST. # https://gmconline.com.br/noticias/politica/bolsonaro-horario-de-verao-deve-acabar-este-ano # https://g1.globo.com/economia/noticia/2019/04/05/governo-anuncia-fim-do-horario-de-verao.ghtml # From Marcus Diniz (2019-04-25): # Brazil no longer has DST changes - decree signed today # https://g1.globo.com/politica/noticia/2019/04/25/bolsonaro-assina-decreto-que-acaba-com-o-horario-de-verao.ghtml # From Daniel Soares de Oliveira (2019-04-26): # http://www.planalto.gov.br/ccivil_03/_Ato2019-2022/2019/Decreto/D9772.htm d953 1 a953 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1235 1 d1238 5 a1260 7 # From Juan Correa (2019-02-04): # http://www.diariooficial.interior.gob.cl/publicaciones/2018/11/23/42212/01/1498738.pdf # From Paul Eggert (2019-09-01): # The above says the Magallanes exception expires 2022-04-02 at 24:00, # so in theory, they will revert to -04/-03 after that. # For now, assume that they will not revert, # since they have extended the expiration date once already. d1301 1 a1301 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1350 1 a1350 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1365 1 a1365 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1390 1 a1390 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1426 1 a1426 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1529 1 a1529 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1538 1 a1538 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1544 1 a1544 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1638 1 a1638 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1667 1 a1667 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1673 1 a1673 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1681 1 a1681 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1689 1 a1689 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1960 1 a1960 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] @ 1.1.1.15.2.2 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 @d51 1 a51 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d772 1 a772 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1261 1 a1261 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1361 1 a1361 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1421 1 a1421 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1515 1 a1515 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1561 1 a1561 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1654 1 a1654 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1750 1 a1750 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S @ 1.1.1.15.2.3 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 @a402 1 #STDOFF -4:16:48.25 a419 1 #STDOFF -4:16:48.25 a431 1 #STDOFF -4:16:48.25 a443 1 #STDOFF -4:16:48.25 a456 1 #STDOFF -4:16:48.25 a470 1 #STDOFF -4:16:48.25 a484 1 #STDOFF -4:16:48.25 a499 1 #STDOFF -4:16:48.25 a513 1 #STDOFF -4:16:48.25 a535 1 #STDOFF -4:16:48.25 a553 1 #STDOFF -4:16:48.25 a565 1 #STDOFF -4:16:48.25 d577 1 a577 4 # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad -4:30 - -0430 1965 -4:00 - AST d648 1 a648 1 # modern Brazilian ... voting machines which, apparently, can't deal d1089 1 a1089 1 # From Paul Eggert (2022-03-15): d1112 1 a1112 1 # http://www.horaoficial.cl/historia_hora.php d1121 1 a1121 2 # Quinta Normal in Santiago. Go with [1], as this matches the meridian # referred to by the relevant Chilean laws to this day. a1142 33 # From Tim Parenti (2022-07-06): # For a brief period of roughly six weeks in 1946, DST was only observed on an # emergency basis in specific regions of central Chile; namely, "the national # territory between the provinces of Coquimbo and Concepción, inclusive". # This was enacted by Decree 3,891, dated 1946-07-13, and took effect # 1946-07-14 24:00, advancing these central regions to -03. # https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19460715/#page/1 # The decree contemplated "[t]hat this advancement of the Official Time, even # though it has been proposed for the cities of Santiago and Valparaíso only, # must be agreed with that of other cities, due to the connection of various # activities that require it, such as, for example, the operation of rail # services". It was originally set to expire after 30 days but was extended # through 1946-08-31 by Decree 4,506, dated 1946-08-13. # https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19460814/#page/1 # # Law Number 8,522, promulgated 1946-08-27, reunified Chilean clocks at their # new "Summer Time" of -04, reckoned as that of "the meridian of the # Astronomical Observatory of Lo Espejo, advanced by 42 minutes and 45 # seconds". Although this law specified the new Summer Time to start on 1 # September each year, a special "transitional article" started it a few days # early, as soon as the law took effect. As the law was to take force "from # the date of its publication in the 'Diario Oficial', which happened the # following day, presume the change took place in Santiago and its environs # from 24:00 -03 to 23:00 -04 on Wednesday 1946-08-28. Although this was a # no-op for wall clocks in the north and south of the country, put their formal # start to DST an hour later when they reached 24:00 -04. # https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19460828/#page/1 # After a brief "Winter Time" stint at -05 beginning 1947-04-01, Law Number # 8,777, promulgated 1947-05-17, established year-round -04 "from 23:00 on the # second day after it is published in the 'Diario Oficial'." It was published # on Monday 1947-05-19 and so took effect from Wednesday 1947-05-21 23:00. # https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19470519/#page/1 d1255 5 a1259 19 # From Juan Correa (2022-04-02): # I found there was a decree published last Thursday that will keep # Magallanes region to UTC -3 "indefinitely". The decree is available at # https://www.diariooficial.interior.gob.cl/publicaciones/2022/03/31/43217-B/01/2108910.pdf # From Juan Correa (2022-08-09): # the Internal Affairs Ministry (Ministerio del Interior) informed DST # for America/Santiago will start on midnight of September 11th; # and will end on April 1st, 2023. Magallanes region (America/Punta_Arenas) # will keep UTC -3 "indefinitely"... This is because on September 4th # we will have a voting whether to approve a new Constitution. # # From Eduardo Romero Urra (2022-08-17): # https://www.diariooficial.interior.gob.cl/publicaciones/2022/08/13/43327/01/2172567.pdf # # From Paul Eggert (2022-08-17): # Although the presidential decree stops at fall 2026, assume that # similar DST rules will continue thereafter. d1297 1 a1297 3 Rule Chile 2019 2021 - Sep Sun>=2 4:00u 1:00 - Rule Chile 2022 only - Sep Sun>=9 4:00u 1:00 - Rule Chile 2023 max - Sep Sun>=2 4:00u 1:00 - d1301 2 a1302 2 Zone America/Santiago -4:42:45 - LMT 1890 -4:42:45 - SMT 1910 Jan 10 # Santiago Mean Time d1304 1 a1304 1 -4:42:45 - SMT 1918 Sep 10 d1306 1 a1306 1 -4:42:45 - SMT 1927 Sep 1 d1310 3 a1312 3 -4:00 - -04 1946 Jul 14 24:00 -4:00 1:00 -03 1946 Aug 28 24:00 # central CL -5:00 1:00 -04 1947 Mar 31 24:00 d1316 1 a1316 1 -4:42:45 - SMT 1910 Jan 10 d1318 1 a1318 1 -4:42:45 - SMT 1918 Sep 10 d1320 1 a1320 1 -4:42:45 - SMT 1927 Sep 1 d1324 1 a1324 2 -4:00 - -04 1946 Aug 28 24:00 -5:00 1:00 -04 1947 Mar 31 24:00 d1358 1 a1358 1 # Milne gives 4:56:16.4 for Bogotá time in 1899. He writes, a1364 1 #STDOFF -4:56:16.4 d1372 17 a1393 3 Link America/Curacao America/Kralendijk Link America/Curacao America/Lower_Princes # d1397 4 a1400 3 # and contains an apostrophe; use "Lower_Princes".... # From Paul Eggert (2021-09-29): # These backward-compatibility links now are in the 'northamerica' file. a1542 29 # From P Chan (2020-11-27): # https://books.google.com/books?id=5-5CAQAAMAAJ&pg=SA1-PA547 # The Official Gazette of British Guiana. (New Series.) Vol. XL. July to # December, 1915, p 1547, lists as several notes: # "Local Mean Time 3 hours 52 mins. 39 secs. slow of Greenwich Mean Time # (Georgetown.) From 1st August, 1911, British Guiana Standard Mean Time 4 # hours slow of Greenwich Mean Time, by notice in Official Gazette on 1st July, # 1911. From 1st March, 1915, British Guiana Standard Mean Time 3 hours 45 # mins. 0 secs. slow of Greenwich Mean Time, by notice in Official Gazette on # 23rd January, 1915." # # https://parliament.gov.gy/documents/acts/10923-act_no._27_of_1975_-_interpretation_and_general_clauses_(amendment)_act_1975.pdf # Interpretation and general clauses (Amendment) Act 1975 (Act No. 27 of 1975) # [dated 1975-07-31] # "This Act...shall come into operation on 1st August, 1975." # "...where any expression of time occurs...the time referred to shall signify # the standard time of Guyana which shall be three hours behind Greenwich Mean # Time." # # Circular No. 10/1992 dated 1992-03-20 # https://dps.gov.gy/wp-content/uploads/2018/12/1992-03-20-Circular-010.pdf # "...cabinet has decided that with effect from Sunday 29th March, 1992, Guyana # Standard Time would be re-established at 01:00 hours by adjusting the hands # of the clock back to 24:00 hours." # Legislated in the Interpretation and general clauses (Amendment) Act 1992 # (Act No. 6 of 1992) [passed 1992-03-27, published 1992-04-18] # https://parliament.gov.gy/documents/acts/5885-6_of_1992_interpretation_and_general_clauses_(amendment)_act_1992.pdf d1544 4 a1547 4 Zone America/Guyana -3:52:39 - LMT 1911 Aug 1 # Georgetown -4:00 - -04 1915 Mar 1 -3:45 - -0345 1975 Aug 1 -3:00 - -03 1992 Mar 29 1:00 d1692 15 a1706 2 Link America/Port_of_Spain America/Marigot Link America/Port_of_Spain America/St_Barthelemy @ 1.1.1.15.2.4 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 @d211 1 a211 1 # to 1920-05-01 was -4:16:48.25. Go with this more precise value a1426 5 # From Alois Treindl (2022-11-10): # End of time change in Colombia 1993 ... should be 6 February 24h ... # DECRETO 267 DE 1993 # https://www.suin-juriscol.gov.co/viewDocument.asp?ruta=Decretos/1061335 d1428 2 a1429 2 Rule CO 1992 only - May 3 0:00 1:00 - Rule CO 1993 only - Feb 6 24:00 0 - d1446 8 a1715 6 # # From Paul Eggert (2023-07-26): # Transition dates are now set by Law No. 7115, not by presidential decree. # https://www.abc.com.py/politica/2023/07/12/promulgacion-el-cambio-de-hora-sera-por-ley/ # From Carlos Raúl Perasso (2023-07-27): # http://silpy.congreso.gov.py/descarga/ley-144138 @ 1.1.1.15.2.5 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 @a1585 3 # For the 1911/1912 establishment of standard time in French possessions, see: # Société Française de Physique, Recueil de constantes physiques (1913), # page 752, 18b. d1587 1 a1587 1 Zone America/Cayenne -3:29:20 - LMT 1911 Jul 1 @ 1.1.1.15.2.6 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 @d405 5 a409 5 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z d424 7 a430 7 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z d436 8 a443 8 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d449 9 a457 9 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 13 -3:00 Arg %z d463 10 a472 10 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 1 -4:00 - %z 1991 May 7 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d478 10 a487 10 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 1 -4:00 - %z 1991 May 7 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 May 31 -4:00 - %z 2004 Jul 25 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d493 11 a503 11 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1990 Mar 4 -4:00 - %z 1990 Oct 28 -4:00 1:00 %z 1991 Mar 17 -4:00 - %z 1991 Oct 6 -3:00 1:00 %z 1992 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d509 10 a518 10 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d524 14 a537 14 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1990 Mar 4 -4:00 - %z 1990 Oct 15 -4:00 1:00 %z 1991 Mar 1 -4:00 - %z 1991 Oct 15 -4:00 1:00 %z 1992 Mar 1 -4:00 - %z 1992 Oct 18 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 May 23 -4:00 - %z 2004 Sep 26 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d547 14 a560 14 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1990 -3:00 1:00 %z 1990 Mar 14 -4:00 - %z 1990 Oct 15 -4:00 1:00 %z 1991 Mar 1 -4:00 - %z 1991 Jun 1 -3:00 - %z 1999 Oct 3 -4:00 1:00 %z 2000 Mar 3 -3:00 - %z 2004 May 31 -4:00 - %z 2004 Jul 25 -3:00 Arg %z 2008 Jan 21 -4:00 SanLuis %z 2009 Oct 11 -3:00 - %z d566 8 a573 8 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d579 8 a586 8 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 May 30 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d599 1 a599 1 -4:00 - %z d970 6 a975 6 -2:00 Brazil %z 1990 Sep 17 -2:00 - %z 1999 Sep 30 -2:00 Brazil %z 2000 Oct 15 -2:00 - %z 2001 Sep 13 -2:00 Brazil %z 2002 Oct 1 -2:00 - %z d988 2 a989 2 -3:00 Brazil %z 1988 Sep 12 -3:00 - %z d994 3 a996 3 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z 2008 Jun 24 0:00 -3:00 - %z d1001 6 a1006 6 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1999 Sep 30 -3:00 Brazil %z 2000 Oct 22 -3:00 - %z 2001 Sep 13 -3:00 Brazil %z 2002 Oct 1 -3:00 - %z d1010 6 a1015 6 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1999 Sep 30 -3:00 Brazil %z 2000 Oct 15 -3:00 - %z 2001 Sep 13 -3:00 Brazil %z 2002 Oct 1 -3:00 - %z d1019 6 a1024 6 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1995 Sep 14 -3:00 Brazil %z 2003 Sep 24 -3:00 - %z 2012 Oct 21 -3:00 Brazil %z 2013 Sep -3:00 - %z d1028 8 a1035 8 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1995 Oct 13 -3:00 Brazil %z 1996 Sep 4 -3:00 - %z 1999 Sep 30 -3:00 Brazil %z 2000 Oct 22 -3:00 - %z 2001 Sep 13 -3:00 Brazil %z 2002 Oct 1 -3:00 - %z d1041 4 a1044 4 -3:00 Brazil %z 2003 Sep 24 -3:00 - %z 2011 Oct 16 -3:00 Brazil %z 2012 Oct 21 -3:00 - %z d1050 3 a1052 3 -3:00 Brazil %z 1963 Oct 23 0:00 -3:00 1:00 %z 1964 -3:00 Brazil %z d1056 1 a1056 1 -4:00 Brazil %z d1060 3 a1062 3 -4:00 Brazil %z 2003 Sep 24 -4:00 - %z 2004 Oct 1 -4:00 Brazil %z d1066 2 a1067 2 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z d1071 4 a1074 4 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z 1999 Sep 30 -4:00 Brazil %z 2000 Oct 15 -4:00 - %z d1080 4 a1083 4 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z 1993 Sep 28 -4:00 Brazil %z 1994 Sep 22 -4:00 - %z d1088 6 a1093 6 -5:00 Brazil %z 1988 Sep 12 -5:00 - %z 1993 Sep 28 -5:00 Brazil %z 1994 Sep 22 -5:00 - %z 2008 Jun 24 0:00 -4:00 - %z 2013 Nov 10 -5:00 - %z d1097 4 a1100 4 -5:00 Brazil %z 1988 Sep 12 -5:00 - %z 2008 Jun 24 0:00 -4:00 - %z 2013 Nov 10 -5:00 - %z d1368 1 a1368 1 -5:00 - %z 1916 Jul 1 d1370 1 a1370 1 -4:00 - %z 1919 Jul 1 d1372 8 a1379 8 -5:00 Chile %z 1932 Sep 1 -4:00 - %z 1942 Jun 1 -5:00 - %z 1942 Aug 1 -4:00 - %z 1946 Jul 14 24:00 -4:00 1:00 %z 1946 Aug 28 24:00 # central CL -5:00 1:00 %z 1947 Mar 31 24:00 -5:00 - %z 1947 May 21 23:00 -4:00 Chile %z d1382 1 a1382 1 -5:00 - %z 1916 Jul 1 d1384 1 a1384 1 -4:00 - %z 1919 Jul 1 d1386 8 a1393 8 -5:00 Chile %z 1932 Sep 1 -4:00 - %z 1942 Jun 1 -5:00 - %z 1942 Aug 1 -4:00 - %z 1946 Aug 28 24:00 -5:00 1:00 %z 1947 Mar 31 24:00 -5:00 - %z 1947 May 21 23:00 -4:00 Chile %z 2016 Dec 4 -3:00 - %z d1396 2 a1397 2 -7:00 Chile %z 1982 Mar 14 3:00u # Easter Time -6:00 Chile %z d1417 4 a1420 4 -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1982 May -4:00 Chile %z 2016 Dec 4 -3:00 - %z d1439 1 a1439 1 -5:00 CO %z d1477 1 a1477 1 -5:00 Ecuador %z d1479 2 a1480 2 -5:00 - %z 1986 -6:00 Ecuador %z d1580 4 a1583 4 -4:00 Falk %z 1983 May -3:00 Falk %z 1985 Sep 15 -4:00 Falk %z 2010 Sep 5 2:00 -3:00 - %z d1591 2 a1592 2 -4:00 - %z 1967 Oct -3:00 - %z d1626 4 a1629 4 -4:00 - %z 1915 Mar 1 -3:45 - %z 1975 Aug 1 -3:00 - %z 1992 Mar 29 1:00 -4:00 - %z d1703 1 a1703 1 Rule Para 2010 2024 - Oct Sun>=1 0:00 1:00 - d1722 1 a1722 21 Rule Para 2013 2024 - Mar Sun>=22 0:00 0 - # # From Heitor David Pinto (2024-09-24): # Today the Congress of Paraguay passed a bill to observe UTC-3 permanently.... # The text of the bill says that it would enter into force on the first # Sunday in October 2024, the same date currently scheduled to start DST.... # https://silpy.congreso.gov.py/web/expediente/132531 # (2024-10-14): # The president approved the law on 11 October 2024, # and it was officially published on 14 October 2024. # https://www.gacetaoficial.gov.py/index/detalle_publicacion/89723 # The text of the law says that it enters into force on the first # Sunday in October 2024 (6 October 2024). But the constitution # prohibits retroactive effect, and the civil code says that laws # enter into force on the day after their publication or on the day # that they specify, and it also says that they don't have retroactive # effect. So I think that the time change on 6 October 2024 should # still be considered as DST according to the previous law, and # permanently UTC-3 from 15 October 2024 according to the new law.... # https://www.constituteproject.org/constitution/Paraguay_2011 # https://www.oas.org/dil/esp/codigo_civil_paraguay.pdf d1727 3 a1729 4 -4:00 - %z 1972 Oct -3:00 - %z 1974 Apr -4:00 Para %z 2024 Oct 15 -3:00 - %z d1756 1 a1756 1 -5:00 Peru %z d1761 1 a1761 1 -2:00 - %z d1771 2 a1772 2 -3:30 - %z 1984 Oct -3:00 - %z d1994 9 a2002 9 -4:00 - %z 1923 Oct 1 -3:30 Uruguay %z 1942 Dec 14 -3:00 Uruguay %z 1960 -3:00 Uruguay %z 1968 -3:00 Uruguay %z 1970 -3:00 Uruguay %z 1974 -3:00 Uruguay %z 1974 Mar 10 -3:00 Uruguay %z 1974 Dec 22 -3:00 Uruguay %z d2036 4 a2039 4 -4:30 - %z 1965 Jan 1 0:00 -4:00 - %z 2007 Dec 9 3:00 -4:30 - %z 2016 May 1 2:30 -4:00 - %z @ 1.1.1.15.2.7 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 @d1255 1 a1255 5 # From Tim Parenti (2025-03-22): # Decreto 307 of 2014 of the Ministry of the Interior and Public Security, # promulgated 2014-01-30 and published 2014-02-19: # https://www.diariooficial.interior.gob.cl/media/2014/02/19/do-20140219.pdf#page=1 # https://www.bcn.cl/leychile/navegar?idNorma=1059557 d1260 4 a1263 5 # From Tim Parenti (2025-03-22): # Decreto 106 of 2015 of the Ministry of the Interior and Public Security, # promulgated 2015-01-27 and published 2015-03-03: # https://www.diariooficial.interior.gob.cl/media/2015/03/03/do-20150303.pdf#page=1 # https://www.bcn.cl/leychile/navegar?idNorma=1075157 d1266 3 a1268 1 # The decree regarding DST has been published in today's Official Gazette... d1272 1 d1274 1 a1277 5 # From Tim Parenti (2025-03-22): # Decreto 253 of 2016 of the Ministry of the Interior and Public Security, # promulgated 2016-03-16 and published 2016-03-18. # https://www.diariooficial.interior.gob.cl/media/2016/03/18/do-20160318.pdf#page=1 # https://www.bcn.cl/leychile/navegar?idNorma=1088502 d1282 2 a1283 6 # From Tim Parenti (2025-03-22), via Deborah Goldsmith (2017-01-19): # Decreto 1820 of 2016 of the Ministry of the Interior and Public Security, # promulgated 2016-12-02 and published 2017-01-17: # https://www.diariooficial.interior.gob.cl/publicaciones/2017/01/17/41660/01/1169626.pdf # https://www.bcn.cl/leychile/Navegar?idNorma=1099217 # Model this as a change to standard offset effective 2016-12-04. d1302 2 a1303 5 # From Tim Parenti (2025-03-22), via Juan Correa (2019-02-04): # Decreto 1286 of 2018 of the Ministry of the Interior and Public Security, # promulgated 2018-09-21 and published 2018-11-23: # https://www.diariooficial.interior.gob.cl/publicaciones/2018/11/23/42212/01/1498738.pdf # https://www.bcn.cl/leychile/Navegar?idNorma=1125760 d1307 1 a1307 4 # Magallanes region to UTC -3 "indefinitely". # From Tim Parenti (2025-03-22): # Decreto 143 of 2022 of the Ministry of the Interior and Public Security, # promulgated 2022-03-29 and published 2022-03-31: a1308 1 # https://www.bcn.cl/leychile/Navegar?idNorma=1174342 d1317 1 a1317 3 # From Tim Parenti (2025-03-22), via Eduardo Romero Urra (2022-08-17): # Decreto 224 of 2022 of the Ministry of the Interior and Public Security, # promulgated 2022-07-14 and published 2022-08-13: a1318 1 # https://www.bcn.cl/leychile/navegar?idNorma=1179983 a1323 20 # From Paul Eggert (2025-01-15): # Diario Regional Aysén's Sebastián Martel reports that 94% of Aysén # citizens polled in November favored changing the rules from # -04/-03-with-DST to -03 all year... # https://www.diarioregionalaysen.cl/noticia/actualidad/2024/12/presentan-decision-que-gano-la-votacion-sobre-el-cambio-del-huso-horario-en-aysen # # From Yonathan Dossow (2025-03-20): # [T]oday we have more confirmation of the change. [Aysén] region will keep # UTC-3 all year... # https://www.cnnchile.com/pais/region-de-aysen-mantendra-horario-de-verano-todo-el-ano_20250320/ # https://www.latercera.com/nacional/noticia/tras-consulta-ciudadana-region-de-aysen-mantendra-el-horario-de-verano-durante-todo-el-ano/ # https://x.com/min_interior/status/1902692504270672098 # # From Tim Parenti (2025-03-22), via Eduardo Romero Urra (2025-03-20): # Decreto 93 of 2025 of the Ministry of the Interior and Public Security, # promulgated 2025-03-11 and published 2025-03-20: # https://www.diariooficial.interior.gob.cl/publicaciones/2025/03/20/44104/01/2624263.pdf # https://www.bcn.cl/leychile/Navegar?idNorma=1211955 # Model this as a change to standard offset effective 2025-03-20. a1379 14 Zone America/Coyhaique -4:48:16 - LMT 1890 -4:42:45 - SMT 1910 Jan 10 -5:00 - %z 1916 Jul 1 -4:42:45 - SMT 1918 Sep 10 -4:00 - %z 1919 Jul 1 -4:42:45 - SMT 1927 Sep 1 -5:00 Chile %z 1932 Sep 1 -4:00 - %z 1942 Jun 1 -5:00 - %z 1942 Aug 1 -4:00 - %z 1946 Aug 28 24:00 -5:00 1:00 %z 1947 Mar 31 24:00 -5:00 - %z 1947 May 21 23:00 -4:00 Chile %z 2025 Mar 20 -3:00 - %z @ 1.1.1.16 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 @d399 1 a399 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d580 1 a580 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d923 1 a923 1 Rule Brazil 2016 2019 - Feb Sun>=15 0:00 0 - d926 1 a926 1 # the first Sunday of November d930 1 d938 13 a950 2 Rule Brazil 2018 only - Nov Sun>=1 0:00 1:00 - # The last ruleset listed above says that the following states observed DST: a951 10 # # From Steffen Thorsen (2019-04-05): # According to multiple sources the Brazilian president wants to get rid of DST. # https://gmconline.com.br/noticias/politica/bolsonaro-horario-de-verao-deve-acabar-este-ano # https://g1.globo.com/economia/noticia/2019/04/05/governo-anuncia-fim-do-horario-de-verao.ghtml # From Marcus Diniz (2019-04-25): # Brazil no longer has DST changes - decree signed today # https://g1.globo.com/politica/noticia/2019/04/25/bolsonaro-assina-decreto-que-acaba-com-o-horario-de-verao.ghtml # From Daniel Soares de Oliveira (2019-04-26): # http://www.planalto.gov.br/ccivil_03/_Ato2019-2022/2019/Decreto/D9772.htm d953 1 a953 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1235 1 d1238 5 a1260 7 # From Juan Correa (2019-02-04): # http://www.diariooficial.interior.gob.cl/publicaciones/2018/11/23/42212/01/1498738.pdf # From Paul Eggert (2019-09-01): # The above says the Magallanes exception expires 2022-04-02 at 24:00, # so in theory, they will revert to -04/-03 after that. # For now, assume that they will not revert, # since they have extended the expiration date once already. d1301 1 a1301 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1350 1 a1350 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1365 1 a1365 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1390 1 a1390 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1426 1 a1426 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1529 1 a1529 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1538 1 a1538 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1544 1 a1544 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1638 1 a1638 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1667 1 a1667 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1673 1 a1673 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1681 1 a1681 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1689 1 a1689 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] d1960 1 a1960 1 # Zone NAME STDOFF RULES FORMAT [UNTIL] @ 1.1.1.17 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 @d51 1 a51 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d772 1 a772 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1261 1 a1261 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1361 1 a1361 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1421 1 a1421 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1515 1 a1515 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1561 1 a1561 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1654 1 a1654 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S d1750 1 a1750 1 # Rule NAME FROM TO - IN ON AT SAVE LETTER/S @ 1.1.1.18 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 @d577 1 a577 4 # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad -4:30 - -0430 1965 -4:00 - AST d1089 1 a1089 1 # From Paul Eggert (2022-03-15): d1112 1 a1112 1 # http://www.horaoficial.cl/historia_hora.php d1121 1 a1121 2 # Quinta Normal in Santiago. Go with [1], as this matches the meridian # referred to by the relevant Chilean laws to this day. a1142 26 # From Tim Parenti (2022-03-15): # For a brief period of roughly six weeks in 1946, DST was only observed on an # emergency basis in specific regions of central Chile; namely, "the national # territory between the provinces of Coquimbo and Concepción, inclusive". # This was enacted by Decree 3,891, dated 1946-07-13, and took effect # 1946-07-14 24:00, advancing these central regions to -03. # https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19460715/#page/1 # The decree contemplated "[t]hat this advancement of the Official Time, even # though it has been proposed for the cities of Santiago and Valparaíso only, # must be agreed with that of other cities, due to the connection of various # activities that require it, such as, for example, the operation of rail # services". It was originally set to expire after 30 days but was extended # through 1946-08-31 by Decree 4,506, dated 1946-08-13. # https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19460814/#page/1 # # Law Number 8,522, promulgated 1946-08-27, reunified Chilean clocks at their # new "Summer Time" of -04, reckoned as that of "the meridian of the # Astronomical Observatory of Lo Espejo, advanced by 42 minutes and 45 # seconds". # https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19460828/#page/1 # After a brief "Winter Time" stint at -05 beginning 1947-04-01, Law Number # 8,777, promulgated 1947-05-17, established year-round -04 "from 23:00 on the # second day after it is published in the 'Diario Oficial'." It was published # on Monday 1947-05-19 and so took effect from Wednesday 1947-05-21 23:00. # https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19470519/#page/1 d1301 2 a1302 2 Zone America/Santiago -4:42:45 - LMT 1890 -4:42:45 - SMT 1910 Jan 10 # Santiago Mean Time d1304 1 a1304 1 -4:42:45 - SMT 1918 Sep 10 d1306 1 a1306 1 -4:42:45 - SMT 1927 Sep 1 d1316 1 a1316 1 -4:42:45 - SMT 1910 Jan 10 d1318 1 a1318 1 -4:42:45 - SMT 1918 Sep 10 d1320 1 a1320 1 -4:42:45 - SMT 1927 Sep 1 d1372 17 a1393 3 Link America/Curacao America/Kralendijk Link America/Curacao America/Lower_Princes # d1397 4 a1400 3 # and contains an apostrophe; use "Lower_Princes".... # From Paul Eggert (2021-09-29): # These backward-compatibility links now are in the 'northamerica' file. a1542 29 # From P Chan (2020-11-27): # https://books.google.com/books?id=5-5CAQAAMAAJ&pg=SA1-PA547 # The Official Gazette of British Guiana. (New Series.) Vol. XL. July to # December, 1915, p 1547, lists as several notes: # "Local Mean Time 3 hours 52 mins. 39 secs. slow of Greenwich Mean Time # (Georgetown.) From 1st August, 1911, British Guiana Standard Mean Time 4 # hours slow of Greenwich Mean Time, by notice in Official Gazette on 1st July, # 1911. From 1st March, 1915, British Guiana Standard Mean Time 3 hours 45 # mins. 0 secs. slow of Greenwich Mean Time, by notice in Official Gazette on # 23rd January, 1915." # # https://parliament.gov.gy/documents/acts/10923-act_no._27_of_1975_-_interpretation_and_general_clauses_(amendment)_act_1975.pdf # Interpretation and general clauses (Amendment) Act 1975 (Act No. 27 of 1975) # [dated 1975-07-31] # "This Act...shall come into operation on 1st August, 1975." # "...where any expression of time occurs...the time referred to shall signify # the standard time of Guyana which shall be three hours behind Greenwich Mean # Time." # # Circular No. 10/1992 dated 1992-03-20 # https://dps.gov.gy/wp-content/uploads/2018/12/1992-03-20-Circular-010.pdf # "...cabinet has decided that with effect from Sunday 29th March, 1992, Guyana # Standard Time would be re-established at 01:00 hours by adjusting the hands # of the clock back to 24:00 hours." # Legislated in the Interpretation and general clauses (Amendment) Act 1992 # (Act No. 6 of 1992) [passed 1992-03-27, published 1992-04-18] # https://parliament.gov.gy/documents/acts/5885-6_of_1992_interpretation_and_general_clauses_(amendment)_act_1992.pdf d1544 4 a1547 4 Zone America/Guyana -3:52:39 - LMT 1911 Aug 1 # Georgetown -4:00 - -04 1915 Mar 1 -3:45 - -0345 1975 Aug 1 -3:00 - -03 1992 Mar 29 1:00 d1692 15 a1706 2 Link America/Port_of_Spain America/Marigot Link America/Port_of_Spain America/St_Barthelemy @ 1.1.1.19 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 @a402 1 #STDOFF -4:16:48.25 a419 1 #STDOFF -4:16:48.25 a431 1 #STDOFF -4:16:48.25 a443 1 #STDOFF -4:16:48.25 a456 1 #STDOFF -4:16:48.25 a470 1 #STDOFF -4:16:48.25 a484 1 #STDOFF -4:16:48.25 a499 1 #STDOFF -4:16:48.25 a513 1 #STDOFF -4:16:48.25 a535 1 #STDOFF -4:16:48.25 a553 1 #STDOFF -4:16:48.25 a565 1 #STDOFF -4:16:48.25 d651 1 a651 1 # modern Brazilian ... voting machines which, apparently, can't deal d1147 1 a1147 1 # From Tim Parenti (2022-07-06): d1165 1 a1165 8 # seconds". Although this law specified the new Summer Time to start on 1 # September each year, a special "transitional article" started it a few days # early, as soon as the law took effect. As the law was to take force "from # the date of its publication in the 'Diario Oficial', which happened the # following day, presume the change took place in Santiago and its environs # from 24:00 -03 to 23:00 -04 on Wednesday 1946-08-28. Although this was a # no-op for wall clocks in the north and south of the country, put their formal # start to DST an hour later when they reached 24:00 -04. d1285 5 a1289 13 # From Juan Correa (2022-04-02): # I found there was a decree published last Thursday that will keep # Magallanes region to UTC -3 "indefinitely". The decree is available at # https://www.diariooficial.interior.gob.cl/publicaciones/2022/03/31/43217-B/01/2108910.pdf # From Juan Correa (2022-08-09): # the Internal Affairs Ministry (Ministerio del Interior) informed DST # for America/Santiago will start on midnight of September 11th; # and will end on April 1st, 2023. Magallanes region (America/Punta_Arenas) # will keep UTC -3 "indefinitely"... This is because on September 4th # we will have a voting whether to approve a new Constitution.... # https://www.interior.gob.cl/noticias/2022/08/09/comunicado-el-proximo-sabado-10-de-septiembre-los-relojes-se-deben-adelantar-una-hora/ d1327 1 a1327 3 Rule Chile 2019 2021 - Sep Sun>=2 4:00u 1:00 - Rule Chile 2022 only - Sep Sun>=9 4:00u 1:00 - Rule Chile 2023 max - Sep Sun>=2 4:00u 1:00 - d1340 3 a1342 3 -4:00 - -04 1946 Jul 14 24:00 -4:00 1:00 -03 1946 Aug 28 24:00 # central CL -5:00 1:00 -04 1947 Mar 31 24:00 d1354 1 a1354 2 -4:00 - -04 1946 Aug 28 24:00 -5:00 1:00 -04 1947 Mar 31 24:00 d1388 1 a1388 1 # Milne gives 4:56:16.4 for Bogotá time in 1899. He writes, a1394 1 #STDOFF -4:56:16.4 @ 1.1.1.20 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 @d1315 2 a1316 8 # we will have a voting whether to approve a new Constitution. # # From Eduardo Romero Urra (2022-08-17): # https://www.diariooficial.interior.gob.cl/publicaciones/2022/08/13/43327/01/2172567.pdf # # From Paul Eggert (2022-08-17): # Although the presidential decree stops at fall 2026, assume that # similar DST rules will continue thereafter. @ 1.1.1.21 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 @d1446 8 @ 1.1.1.22 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 @a1426 5 # From Alois Treindl (2022-11-10): # End of time change in Colombia 1993 ... should be 6 February 24h ... # DECRETO 267 DE 1993 # https://www.suin-juriscol.gov.co/viewDocument.asp?ruta=Decretos/1061335 d1428 2 a1429 2 Rule CO 1992 only - May 3 0:00 1:00 - Rule CO 1993 only - Feb 6 24:00 0 - @ 1.1.1.22.2.1 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 @d211 1 a211 1 # to 1920-05-01 was -4:16:48.25. Go with this more precise value @ 1.1.1.22.2.2 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 @a1712 6 # # From Paul Eggert (2023-07-26): # Transition dates are now set by Law No. 7115, not by presidential decree. # https://www.abc.com.py/politica/2023/07/12/promulgacion-el-cambio-de-hora-sera-por-ley/ # From Carlos Raúl Perasso (2023-07-27): # http://silpy.congreso.gov.py/descarga/ley-144138 @ 1.1.1.22.2.3 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 @a1585 3 # For the 1911/1912 establishment of standard time in French possessions, see: # Société Française de Physique, Recueil de constantes physiques (1913), # page 752, 18b. d1587 1 a1587 1 Zone America/Cayenne -3:29:20 - LMT 1911 Jul 1 @ 1.1.1.22.2.4 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 @d405 5 a409 5 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z d424 7 a430 7 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z d436 8 a443 8 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d449 9 a457 9 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 13 -3:00 Arg %z d463 10 a472 10 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 1 -4:00 - %z 1991 May 7 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d478 10 a487 10 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 1 -4:00 - %z 1991 May 7 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 May 31 -4:00 - %z 2004 Jul 25 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d493 11 a503 11 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1990 Mar 4 -4:00 - %z 1990 Oct 28 -4:00 1:00 %z 1991 Mar 17 -4:00 - %z 1991 Oct 6 -3:00 1:00 %z 1992 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d509 10 a518 10 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d524 14 a537 14 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1990 Mar 4 -4:00 - %z 1990 Oct 15 -4:00 1:00 %z 1991 Mar 1 -4:00 - %z 1991 Oct 15 -4:00 1:00 %z 1992 Mar 1 -4:00 - %z 1992 Oct 18 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 May 23 -4:00 - %z 2004 Sep 26 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d547 14 a560 14 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1990 -3:00 1:00 %z 1990 Mar 14 -4:00 - %z 1990 Oct 15 -4:00 1:00 %z 1991 Mar 1 -4:00 - %z 1991 Jun 1 -3:00 - %z 1999 Oct 3 -4:00 1:00 %z 2000 Mar 3 -3:00 - %z 2004 May 31 -4:00 - %z 2004 Jul 25 -3:00 Arg %z 2008 Jan 21 -4:00 SanLuis %z 2009 Oct 11 -3:00 - %z d566 8 a573 8 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d579 8 a586 8 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 May 30 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d599 1 a599 1 -4:00 - %z d970 6 a975 6 -2:00 Brazil %z 1990 Sep 17 -2:00 - %z 1999 Sep 30 -2:00 Brazil %z 2000 Oct 15 -2:00 - %z 2001 Sep 13 -2:00 Brazil %z 2002 Oct 1 -2:00 - %z d988 2 a989 2 -3:00 Brazil %z 1988 Sep 12 -3:00 - %z d994 3 a996 3 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z 2008 Jun 24 0:00 -3:00 - %z d1001 6 a1006 6 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1999 Sep 30 -3:00 Brazil %z 2000 Oct 22 -3:00 - %z 2001 Sep 13 -3:00 Brazil %z 2002 Oct 1 -3:00 - %z d1010 6 a1015 6 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1999 Sep 30 -3:00 Brazil %z 2000 Oct 15 -3:00 - %z 2001 Sep 13 -3:00 Brazil %z 2002 Oct 1 -3:00 - %z d1019 6 a1024 6 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1995 Sep 14 -3:00 Brazil %z 2003 Sep 24 -3:00 - %z 2012 Oct 21 -3:00 Brazil %z 2013 Sep -3:00 - %z d1028 8 a1035 8 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1995 Oct 13 -3:00 Brazil %z 1996 Sep 4 -3:00 - %z 1999 Sep 30 -3:00 Brazil %z 2000 Oct 22 -3:00 - %z 2001 Sep 13 -3:00 Brazil %z 2002 Oct 1 -3:00 - %z d1041 4 a1044 4 -3:00 Brazil %z 2003 Sep 24 -3:00 - %z 2011 Oct 16 -3:00 Brazil %z 2012 Oct 21 -3:00 - %z d1050 3 a1052 3 -3:00 Brazil %z 1963 Oct 23 0:00 -3:00 1:00 %z 1964 -3:00 Brazil %z d1056 1 a1056 1 -4:00 Brazil %z d1060 3 a1062 3 -4:00 Brazil %z 2003 Sep 24 -4:00 - %z 2004 Oct 1 -4:00 Brazil %z d1066 2 a1067 2 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z d1071 4 a1074 4 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z 1999 Sep 30 -4:00 Brazil %z 2000 Oct 15 -4:00 - %z d1080 4 a1083 4 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z 1993 Sep 28 -4:00 Brazil %z 1994 Sep 22 -4:00 - %z d1088 6 a1093 6 -5:00 Brazil %z 1988 Sep 12 -5:00 - %z 1993 Sep 28 -5:00 Brazil %z 1994 Sep 22 -5:00 - %z 2008 Jun 24 0:00 -4:00 - %z 2013 Nov 10 -5:00 - %z d1097 4 a1100 4 -5:00 Brazil %z 1988 Sep 12 -5:00 - %z 2008 Jun 24 0:00 -4:00 - %z 2013 Nov 10 -5:00 - %z d1368 1 a1368 1 -5:00 - %z 1916 Jul 1 d1370 1 a1370 1 -4:00 - %z 1919 Jul 1 d1372 8 a1379 8 -5:00 Chile %z 1932 Sep 1 -4:00 - %z 1942 Jun 1 -5:00 - %z 1942 Aug 1 -4:00 - %z 1946 Jul 14 24:00 -4:00 1:00 %z 1946 Aug 28 24:00 # central CL -5:00 1:00 %z 1947 Mar 31 24:00 -5:00 - %z 1947 May 21 23:00 -4:00 Chile %z d1382 1 a1382 1 -5:00 - %z 1916 Jul 1 d1384 1 a1384 1 -4:00 - %z 1919 Jul 1 d1386 8 a1393 8 -5:00 Chile %z 1932 Sep 1 -4:00 - %z 1942 Jun 1 -5:00 - %z 1942 Aug 1 -4:00 - %z 1946 Aug 28 24:00 -5:00 1:00 %z 1947 Mar 31 24:00 -5:00 - %z 1947 May 21 23:00 -4:00 Chile %z 2016 Dec 4 -3:00 - %z d1396 2 a1397 2 -7:00 Chile %z 1982 Mar 14 3:00u # Easter Time -6:00 Chile %z d1417 4 a1420 4 -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1982 May -4:00 Chile %z 2016 Dec 4 -3:00 - %z d1439 1 a1439 1 -5:00 CO %z d1477 1 a1477 1 -5:00 Ecuador %z d1479 2 a1480 2 -5:00 - %z 1986 -6:00 Ecuador %z d1580 4 a1583 4 -4:00 Falk %z 1983 May -3:00 Falk %z 1985 Sep 15 -4:00 Falk %z 2010 Sep 5 2:00 -3:00 - %z d1591 2 a1592 2 -4:00 - %z 1967 Oct -3:00 - %z d1626 4 a1629 4 -4:00 - %z 1915 Mar 1 -3:45 - %z 1975 Aug 1 -3:00 - %z 1992 Mar 29 1:00 -4:00 - %z d1703 1 a1703 1 Rule Para 2010 2024 - Oct Sun>=1 0:00 1:00 - d1722 1 a1722 21 Rule Para 2013 2024 - Mar Sun>=22 0:00 0 - # # From Heitor David Pinto (2024-09-24): # Today the Congress of Paraguay passed a bill to observe UTC-3 permanently.... # The text of the bill says that it would enter into force on the first # Sunday in October 2024, the same date currently scheduled to start DST.... # https://silpy.congreso.gov.py/web/expediente/132531 # (2024-10-14): # The president approved the law on 11 October 2024, # and it was officially published on 14 October 2024. # https://www.gacetaoficial.gov.py/index/detalle_publicacion/89723 # The text of the law says that it enters into force on the first # Sunday in October 2024 (6 October 2024). But the constitution # prohibits retroactive effect, and the civil code says that laws # enter into force on the day after their publication or on the day # that they specify, and it also says that they don't have retroactive # effect. So I think that the time change on 6 October 2024 should # still be considered as DST according to the previous law, and # permanently UTC-3 from 15 October 2024 according to the new law.... # https://www.constituteproject.org/constitution/Paraguay_2011 # https://www.oas.org/dil/esp/codigo_civil_paraguay.pdf d1727 3 a1729 4 -4:00 - %z 1972 Oct -3:00 - %z 1974 Apr -4:00 Para %z 2024 Oct 15 -3:00 - %z d1756 1 a1756 1 -5:00 Peru %z d1761 1 a1761 1 -2:00 - %z d1771 2 a1772 2 -3:30 - %z 1984 Oct -3:00 - %z d1994 9 a2002 9 -4:00 - %z 1923 Oct 1 -3:30 Uruguay %z 1942 Dec 14 -3:00 Uruguay %z 1960 -3:00 Uruguay %z 1968 -3:00 Uruguay %z 1970 -3:00 Uruguay %z 1974 -3:00 Uruguay %z 1974 Mar 10 -3:00 Uruguay %z 1974 Dec 22 -3:00 Uruguay %z d2036 4 a2039 4 -4:30 - %z 1965 Jan 1 0:00 -4:00 - %z 2007 Dec 9 3:00 -4:30 - %z 2016 May 1 2:30 -4:00 - %z @ 1.1.1.22.2.5 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 @d1255 1 a1255 5 # From Tim Parenti (2025-03-22): # Decreto 307 of 2014 of the Ministry of the Interior and Public Security, # promulgated 2014-01-30 and published 2014-02-19: # https://www.diariooficial.interior.gob.cl/media/2014/02/19/do-20140219.pdf#page=1 # https://www.bcn.cl/leychile/navegar?idNorma=1059557 d1260 4 a1263 5 # From Tim Parenti (2025-03-22): # Decreto 106 of 2015 of the Ministry of the Interior and Public Security, # promulgated 2015-01-27 and published 2015-03-03: # https://www.diariooficial.interior.gob.cl/media/2015/03/03/do-20150303.pdf#page=1 # https://www.bcn.cl/leychile/navegar?idNorma=1075157 d1266 3 a1268 1 # The decree regarding DST has been published in today's Official Gazette... d1272 1 d1274 1 a1277 5 # From Tim Parenti (2025-03-22): # Decreto 253 of 2016 of the Ministry of the Interior and Public Security, # promulgated 2016-03-16 and published 2016-03-18. # https://www.diariooficial.interior.gob.cl/media/2016/03/18/do-20160318.pdf#page=1 # https://www.bcn.cl/leychile/navegar?idNorma=1088502 d1282 2 a1283 6 # From Tim Parenti (2025-03-22), via Deborah Goldsmith (2017-01-19): # Decreto 1820 of 2016 of the Ministry of the Interior and Public Security, # promulgated 2016-12-02 and published 2017-01-17: # https://www.diariooficial.interior.gob.cl/publicaciones/2017/01/17/41660/01/1169626.pdf # https://www.bcn.cl/leychile/Navegar?idNorma=1099217 # Model this as a change to standard offset effective 2016-12-04. d1302 2 a1303 5 # From Tim Parenti (2025-03-22), via Juan Correa (2019-02-04): # Decreto 1286 of 2018 of the Ministry of the Interior and Public Security, # promulgated 2018-09-21 and published 2018-11-23: # https://www.diariooficial.interior.gob.cl/publicaciones/2018/11/23/42212/01/1498738.pdf # https://www.bcn.cl/leychile/Navegar?idNorma=1125760 d1307 1 a1307 4 # Magallanes region to UTC -3 "indefinitely". # From Tim Parenti (2025-03-22): # Decreto 143 of 2022 of the Ministry of the Interior and Public Security, # promulgated 2022-03-29 and published 2022-03-31: a1308 1 # https://www.bcn.cl/leychile/Navegar?idNorma=1174342 d1317 1 a1317 3 # From Tim Parenti (2025-03-22), via Eduardo Romero Urra (2022-08-17): # Decreto 224 of 2022 of the Ministry of the Interior and Public Security, # promulgated 2022-07-14 and published 2022-08-13: a1318 1 # https://www.bcn.cl/leychile/navegar?idNorma=1179983 a1323 20 # From Paul Eggert (2025-01-15): # Diario Regional Aysén's Sebastián Martel reports that 94% of Aysén # citizens polled in November favored changing the rules from # -04/-03-with-DST to -03 all year... # https://www.diarioregionalaysen.cl/noticia/actualidad/2024/12/presentan-decision-que-gano-la-votacion-sobre-el-cambio-del-huso-horario-en-aysen # # From Yonathan Dossow (2025-03-20): # [T]oday we have more confirmation of the change. [Aysén] region will keep # UTC-3 all year... # https://www.cnnchile.com/pais/region-de-aysen-mantendra-horario-de-verano-todo-el-ano_20250320/ # https://www.latercera.com/nacional/noticia/tras-consulta-ciudadana-region-de-aysen-mantendra-el-horario-de-verano-durante-todo-el-ano/ # https://x.com/min_interior/status/1902692504270672098 # # From Tim Parenti (2025-03-22), via Eduardo Romero Urra (2025-03-20): # Decreto 93 of 2025 of the Ministry of the Interior and Public Security, # promulgated 2025-03-11 and published 2025-03-20: # https://www.diariooficial.interior.gob.cl/publicaciones/2025/03/20/44104/01/2624263.pdf # https://www.bcn.cl/leychile/Navegar?idNorma=1211955 # Model this as a change to standard offset effective 2025-03-20. a1379 14 Zone America/Coyhaique -4:48:16 - LMT 1890 -4:42:45 - SMT 1910 Jan 10 -5:00 - %z 1916 Jul 1 -4:42:45 - SMT 1918 Sep 10 -4:00 - %z 1919 Jul 1 -4:42:45 - SMT 1927 Sep 1 -5:00 Chile %z 1932 Sep 1 -4:00 - %z 1942 Jun 1 -5:00 - %z 1942 Aug 1 -4:00 - %z 1946 Aug 28 24:00 -5:00 1:00 %z 1947 Mar 31 24:00 -5:00 - %z 1947 May 21 23:00 -4:00 Chile %z 2025 Mar 20 -3:00 - %z @ 1.1.1.23 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 @d211 1 a211 1 # to 1920-05-01 was -4:16:48.25. Go with this more precise value @ 1.1.1.24 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 @a1712 6 # # From Paul Eggert (2023-07-26): # Transition dates are now set by Law No. 7115, not by presidential decree. # https://www.abc.com.py/politica/2023/07/12/promulgacion-el-cambio-de-hora-sera-por-ley/ # From Carlos Raúl Perasso (2023-07-27): # http://silpy.congreso.gov.py/descarga/ley-144138 @ 1.1.1.25 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 @a1585 3 # For the 1911/1912 establishment of standard time in French possessions, see: # Société Française de Physique, Recueil de constantes physiques (1913), # page 752, 18b. d1587 1 a1587 1 Zone America/Cayenne -3:29:20 - LMT 1911 Jul 1 @ 1.1.1.25.2.1 log @Sync with HEAD @ text @d405 5 a409 5 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z d424 7 a430 7 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z d436 8 a443 8 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d449 9 a457 9 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 13 -3:00 Arg %z d463 10 a472 10 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 1 -4:00 - %z 1991 May 7 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d478 10 a487 10 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 1 -4:00 - %z 1991 May 7 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 May 31 -4:00 - %z 2004 Jul 25 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d493 11 a503 11 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1990 Mar 4 -4:00 - %z 1990 Oct 28 -4:00 1:00 %z 1991 Mar 17 -4:00 - %z 1991 Oct 6 -3:00 1:00 %z 1992 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d509 10 a518 10 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d524 14 a537 14 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1990 Mar 4 -4:00 - %z 1990 Oct 15 -4:00 1:00 %z 1991 Mar 1 -4:00 - %z 1991 Oct 15 -4:00 1:00 %z 1992 Mar 1 -4:00 - %z 1992 Oct 18 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 May 23 -4:00 - %z 2004 Sep 26 -3:00 Arg %z 2008 Oct 18 -3:00 - 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%z d1001 6 a1006 6 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1999 Sep 30 -3:00 Brazil %z 2000 Oct 22 -3:00 - %z 2001 Sep 13 -3:00 Brazil %z 2002 Oct 1 -3:00 - %z d1010 6 a1015 6 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1999 Sep 30 -3:00 Brazil %z 2000 Oct 15 -3:00 - %z 2001 Sep 13 -3:00 Brazil %z 2002 Oct 1 -3:00 - %z d1019 6 a1024 6 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1995 Sep 14 -3:00 Brazil %z 2003 Sep 24 -3:00 - %z 2012 Oct 21 -3:00 Brazil %z 2013 Sep -3:00 - %z d1028 8 a1035 8 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1995 Oct 13 -3:00 Brazil %z 1996 Sep 4 -3:00 - %z 1999 Sep 30 -3:00 Brazil %z 2000 Oct 22 -3:00 - %z 2001 Sep 13 -3:00 Brazil %z 2002 Oct 1 -3:00 - %z d1041 4 a1044 4 -3:00 Brazil %z 2003 Sep 24 -3:00 - %z 2011 Oct 16 -3:00 Brazil %z 2012 Oct 21 -3:00 - %z d1050 3 a1052 3 -3:00 Brazil %z 1963 Oct 23 0:00 -3:00 1:00 %z 1964 -3:00 Brazil %z d1056 1 a1056 1 -4:00 Brazil %z d1060 3 a1062 3 -4:00 Brazil %z 2003 Sep 24 -4:00 - %z 2004 Oct 1 -4:00 Brazil %z d1066 2 a1067 2 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z d1071 4 a1074 4 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z 1999 Sep 30 -4:00 Brazil %z 2000 Oct 15 -4:00 - %z d1080 4 a1083 4 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z 1993 Sep 28 -4:00 Brazil %z 1994 Sep 22 -4:00 - %z d1088 6 a1093 6 -5:00 Brazil %z 1988 Sep 12 -5:00 - %z 1993 Sep 28 -5:00 Brazil %z 1994 Sep 22 -5:00 - %z 2008 Jun 24 0:00 -4:00 - %z 2013 Nov 10 -5:00 - %z d1097 4 a1100 4 -5:00 Brazil %z 1988 Sep 12 -5:00 - %z 2008 Jun 24 0:00 -4:00 - %z 2013 Nov 10 -5:00 - %z d1255 1 a1255 5 # From Tim Parenti (2025-03-22): # Decreto 307 of 2014 of the Ministry of the Interior and Public Security, # promulgated 2014-01-30 and published 2014-02-19: # https://www.diariooficial.interior.gob.cl/media/2014/02/19/do-20140219.pdf#page=1 # https://www.bcn.cl/leychile/navegar?idNorma=1059557 d1260 4 a1263 5 # From Tim Parenti (2025-03-22): # Decreto 106 of 2015 of the Ministry of the Interior and Public Security, # promulgated 2015-01-27 and published 2015-03-03: # https://www.diariooficial.interior.gob.cl/media/2015/03/03/do-20150303.pdf#page=1 # https://www.bcn.cl/leychile/navegar?idNorma=1075157 d1266 3 a1268 1 # The decree regarding DST has been published in today's Official Gazette... d1272 1 d1274 1 a1277 5 # From Tim Parenti (2025-03-22): # Decreto 253 of 2016 of the Ministry of the Interior and Public Security, # promulgated 2016-03-16 and published 2016-03-18. # https://www.diariooficial.interior.gob.cl/media/2016/03/18/do-20160318.pdf#page=1 # https://www.bcn.cl/leychile/navegar?idNorma=1088502 d1282 2 a1283 6 # From Tim Parenti (2025-03-22), via Deborah Goldsmith (2017-01-19): # Decreto 1820 of 2016 of the Ministry of the Interior and Public Security, # promulgated 2016-12-02 and published 2017-01-17: # https://www.diariooficial.interior.gob.cl/publicaciones/2017/01/17/41660/01/1169626.pdf # https://www.bcn.cl/leychile/Navegar?idNorma=1099217 # Model this as a change to standard offset effective 2016-12-04. d1302 2 a1303 5 # From Tim Parenti (2025-03-22), via Juan Correa (2019-02-04): # Decreto 1286 of 2018 of the Ministry of the Interior and Public Security, # promulgated 2018-09-21 and published 2018-11-23: # https://www.diariooficial.interior.gob.cl/publicaciones/2018/11/23/42212/01/1498738.pdf # https://www.bcn.cl/leychile/Navegar?idNorma=1125760 d1307 1 a1307 4 # Magallanes region to UTC -3 "indefinitely". # From Tim Parenti (2025-03-22): # Decreto 143 of 2022 of the Ministry of the Interior and Public Security, # promulgated 2022-03-29 and published 2022-03-31: a1308 1 # https://www.bcn.cl/leychile/Navegar?idNorma=1174342 d1317 1 a1317 3 # From Tim Parenti (2025-03-22), via Eduardo Romero Urra (2022-08-17): # Decreto 224 of 2022 of the Ministry of the Interior and Public Security, # promulgated 2022-07-14 and published 2022-08-13: a1318 1 # https://www.bcn.cl/leychile/navegar?idNorma=1179983 a1323 20 # From Paul Eggert (2025-01-15): # Diario Regional Aysén's Sebastián Martel reports that 94% of Aysén # citizens polled in November favored changing the rules from # -04/-03-with-DST to -03 all year... # https://www.diarioregionalaysen.cl/noticia/actualidad/2024/12/presentan-decision-que-gano-la-votacion-sobre-el-cambio-del-huso-horario-en-aysen # # From Yonathan Dossow (2025-03-20): # [T]oday we have more confirmation of the change. [Aysén] region will keep # UTC-3 all year... # https://www.cnnchile.com/pais/region-de-aysen-mantendra-horario-de-verano-todo-el-ano_20250320/ # https://www.latercera.com/nacional/noticia/tras-consulta-ciudadana-region-de-aysen-mantendra-el-horario-de-verano-durante-todo-el-ano/ # https://x.com/min_interior/status/1902692504270672098 # # From Tim Parenti (2025-03-22), via Eduardo Romero Urra (2025-03-20): # Decreto 93 of 2025 of the Ministry of the Interior and Public Security, # promulgated 2025-03-11 and published 2025-03-20: # https://www.diariooficial.interior.gob.cl/publicaciones/2025/03/20/44104/01/2624263.pdf # https://www.bcn.cl/leychile/Navegar?idNorma=1211955 # Model this as a change to standard offset effective 2025-03-20. d1368 1 a1368 1 -5:00 - %z 1916 Jul 1 d1370 1 a1370 1 -4:00 - %z 1919 Jul 1 d1372 8 a1379 22 -5:00 Chile %z 1932 Sep 1 -4:00 - %z 1942 Jun 1 -5:00 - %z 1942 Aug 1 -4:00 - %z 1946 Jul 14 24:00 -4:00 1:00 %z 1946 Aug 28 24:00 # central CL -5:00 1:00 %z 1947 Mar 31 24:00 -5:00 - %z 1947 May 21 23:00 -4:00 Chile %z Zone America/Coyhaique -4:48:16 - LMT 1890 -4:42:45 - SMT 1910 Jan 10 -5:00 - %z 1916 Jul 1 -4:42:45 - SMT 1918 Sep 10 -4:00 - %z 1919 Jul 1 -4:42:45 - SMT 1927 Sep 1 -5:00 Chile %z 1932 Sep 1 -4:00 - %z 1942 Jun 1 -5:00 - %z 1942 Aug 1 -4:00 - %z 1946 Aug 28 24:00 -5:00 1:00 %z 1947 Mar 31 24:00 -5:00 - %z 1947 May 21 23:00 -4:00 Chile %z 2025 Mar 20 -3:00 - %z d1382 1 a1382 1 -5:00 - %z 1916 Jul 1 d1384 1 a1384 1 -4:00 - %z 1919 Jul 1 d1386 8 a1393 8 -5:00 Chile %z 1932 Sep 1 -4:00 - %z 1942 Jun 1 -5:00 - %z 1942 Aug 1 -4:00 - %z 1946 Aug 28 24:00 -5:00 1:00 %z 1947 Mar 31 24:00 -5:00 - %z 1947 May 21 23:00 -4:00 Chile %z 2016 Dec 4 -3:00 - %z d1396 2 a1397 2 -7:00 Chile %z 1982 Mar 14 3:00u # Easter Time -6:00 Chile %z d1417 4 a1420 4 -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1982 May -4:00 Chile %z 2016 Dec 4 -3:00 - %z d1439 1 a1439 1 -5:00 CO %z d1477 1 a1477 1 -5:00 Ecuador %z d1479 2 a1480 2 -5:00 - %z 1986 -6:00 Ecuador %z d1580 4 a1583 4 -4:00 Falk %z 1983 May -3:00 Falk %z 1985 Sep 15 -4:00 Falk %z 2010 Sep 5 2:00 -3:00 - %z d1591 2 a1592 2 -4:00 - %z 1967 Oct -3:00 - %z d1626 4 a1629 4 -4:00 - %z 1915 Mar 1 -3:45 - %z 1975 Aug 1 -3:00 - %z 1992 Mar 29 1:00 -4:00 - %z d1703 1 a1703 1 Rule Para 2010 2024 - Oct Sun>=1 0:00 1:00 - d1722 1 a1722 21 Rule Para 2013 2024 - Mar Sun>=22 0:00 0 - # # From Heitor David Pinto (2024-09-24): # Today the Congress of Paraguay passed a bill to observe UTC-3 permanently.... # The text of the bill says that it would enter into force on the first # Sunday in October 2024, the same date currently scheduled to start DST.... # https://silpy.congreso.gov.py/web/expediente/132531 # (2024-10-14): # The president approved the law on 11 October 2024, # and it was officially published on 14 October 2024. # https://www.gacetaoficial.gov.py/index/detalle_publicacion/89723 # The text of the law says that it enters into force on the first # Sunday in October 2024 (6 October 2024). But the constitution # prohibits retroactive effect, and the civil code says that laws # enter into force on the day after their publication or on the day # that they specify, and it also says that they don't have retroactive # effect. So I think that the time change on 6 October 2024 should # still be considered as DST according to the previous law, and # permanently UTC-3 from 15 October 2024 according to the new law.... # https://www.constituteproject.org/constitution/Paraguay_2011 # https://www.oas.org/dil/esp/codigo_civil_paraguay.pdf d1727 3 a1729 4 -4:00 - %z 1972 Oct -3:00 - %z 1974 Apr -4:00 Para %z 2024 Oct 15 -3:00 - %z d1756 1 a1756 1 -5:00 Peru %z d1761 1 a1761 1 -2:00 - %z d1771 2 a1772 2 -3:30 - %z 1984 Oct -3:00 - %z d1994 9 a2002 9 -4:00 - %z 1923 Oct 1 -3:30 Uruguay %z 1942 Dec 14 -3:00 Uruguay %z 1960 -3:00 Uruguay %z 1968 -3:00 Uruguay %z 1970 -3:00 Uruguay %z 1974 -3:00 Uruguay %z 1974 Mar 10 -3:00 Uruguay %z 1974 Dec 22 -3:00 Uruguay %z d2036 4 a2039 4 -4:30 - %z 1965 Jan 1 0:00 -4:00 - %z 2007 Dec 9 3:00 -4:30 - %z 2016 May 1 2:30 -4:00 - %z @ 1.1.1.26 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 @d405 5 a409 5 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z d424 7 a430 7 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z d436 8 a443 8 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d449 9 a457 9 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 13 -3:00 Arg %z d463 10 a472 10 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 1 -4:00 - %z 1991 May 7 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d478 10 a487 10 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 1 -4:00 - %z 1991 May 7 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 May 31 -4:00 - %z 2004 Jul 25 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d493 11 a503 11 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1990 Mar 4 -4:00 - %z 1990 Oct 28 -4:00 1:00 %z 1991 Mar 17 -4:00 - %z 1991 Oct 6 -3:00 1:00 %z 1992 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d509 10 a518 10 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1991 Mar 3 -4:00 - %z 1991 Oct 20 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d524 14 a537 14 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1990 Mar 4 -4:00 - %z 1990 Oct 15 -4:00 1:00 %z 1991 Mar 1 -4:00 - %z 1991 Oct 15 -4:00 1:00 %z 1992 Mar 1 -4:00 - %z 1992 Oct 18 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 May 23 -4:00 - %z 2004 Sep 26 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d547 14 a560 14 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1990 -3:00 1:00 %z 1990 Mar 14 -4:00 - %z 1990 Oct 15 -4:00 1:00 %z 1991 Mar 1 -4:00 - %z 1991 Jun 1 -3:00 - %z 1999 Oct 3 -4:00 1:00 %z 2000 Mar 3 -3:00 - %z 2004 May 31 -4:00 - %z 2004 Jul 25 -3:00 Arg %z 2008 Jan 21 -4:00 SanLuis %z 2009 Oct 11 -3:00 - %z d566 8 a573 8 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 Jun 1 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d579 8 a586 8 -4:00 - %z 1930 Dec -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1999 Oct 3 -4:00 Arg %z 2000 Mar 3 -3:00 - %z 2004 May 30 -4:00 - %z 2004 Jun 20 -3:00 Arg %z 2008 Oct 18 -3:00 - %z d599 1 a599 1 -4:00 - %z d970 6 a975 6 -2:00 Brazil %z 1990 Sep 17 -2:00 - %z 1999 Sep 30 -2:00 Brazil %z 2000 Oct 15 -2:00 - %z 2001 Sep 13 -2:00 Brazil %z 2002 Oct 1 -2:00 - %z d988 2 a989 2 -3:00 Brazil %z 1988 Sep 12 -3:00 - %z d994 3 a996 3 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z 2008 Jun 24 0:00 -3:00 - %z d1001 6 a1006 6 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1999 Sep 30 -3:00 Brazil %z 2000 Oct 22 -3:00 - %z 2001 Sep 13 -3:00 Brazil %z 2002 Oct 1 -3:00 - %z d1010 6 a1015 6 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1999 Sep 30 -3:00 Brazil %z 2000 Oct 15 -3:00 - %z 2001 Sep 13 -3:00 Brazil %z 2002 Oct 1 -3:00 - %z d1019 6 a1024 6 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1995 Sep 14 -3:00 Brazil %z 2003 Sep 24 -3:00 - %z 2012 Oct 21 -3:00 Brazil %z 2013 Sep -3:00 - %z d1028 8 a1035 8 -3:00 Brazil %z 1990 Sep 17 -3:00 - %z 1995 Oct 13 -3:00 Brazil %z 1996 Sep 4 -3:00 - %z 1999 Sep 30 -3:00 Brazil %z 2000 Oct 22 -3:00 - %z 2001 Sep 13 -3:00 Brazil %z 2002 Oct 1 -3:00 - %z d1041 4 a1044 4 -3:00 Brazil %z 2003 Sep 24 -3:00 - %z 2011 Oct 16 -3:00 Brazil %z 2012 Oct 21 -3:00 - %z d1050 3 a1052 3 -3:00 Brazil %z 1963 Oct 23 0:00 -3:00 1:00 %z 1964 -3:00 Brazil %z d1056 1 a1056 1 -4:00 Brazil %z d1060 3 a1062 3 -4:00 Brazil %z 2003 Sep 24 -4:00 - %z 2004 Oct 1 -4:00 Brazil %z d1066 2 a1067 2 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z d1071 4 a1074 4 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z 1999 Sep 30 -4:00 Brazil %z 2000 Oct 15 -4:00 - %z d1080 4 a1083 4 -4:00 Brazil %z 1988 Sep 12 -4:00 - %z 1993 Sep 28 -4:00 Brazil %z 1994 Sep 22 -4:00 - %z d1088 6 a1093 6 -5:00 Brazil %z 1988 Sep 12 -5:00 - %z 1993 Sep 28 -5:00 Brazil %z 1994 Sep 22 -5:00 - %z 2008 Jun 24 0:00 -4:00 - %z 2013 Nov 10 -5:00 - %z d1097 4 a1100 4 -5:00 Brazil %z 1988 Sep 12 -5:00 - %z 2008 Jun 24 0:00 -4:00 - %z 2013 Nov 10 -5:00 - %z d1368 1 a1368 1 -5:00 - %z 1916 Jul 1 d1370 1 a1370 1 -4:00 - %z 1919 Jul 1 d1372 8 a1379 8 -5:00 Chile %z 1932 Sep 1 -4:00 - %z 1942 Jun 1 -5:00 - %z 1942 Aug 1 -4:00 - %z 1946 Jul 14 24:00 -4:00 1:00 %z 1946 Aug 28 24:00 # central CL -5:00 1:00 %z 1947 Mar 31 24:00 -5:00 - %z 1947 May 21 23:00 -4:00 Chile %z d1382 1 a1382 1 -5:00 - %z 1916 Jul 1 d1384 1 a1384 1 -4:00 - %z 1919 Jul 1 d1386 8 a1393 8 -5:00 Chile %z 1932 Sep 1 -4:00 - %z 1942 Jun 1 -5:00 - %z 1942 Aug 1 -4:00 - %z 1946 Aug 28 24:00 -5:00 1:00 %z 1947 Mar 31 24:00 -5:00 - %z 1947 May 21 23:00 -4:00 Chile %z 2016 Dec 4 -3:00 - %z d1396 2 a1397 2 -7:00 Chile %z 1982 Mar 14 3:00u # Easter Time -6:00 Chile %z d1417 4 a1420 4 -4:00 Arg %z 1969 Oct 5 -3:00 Arg %z 1982 May -4:00 Chile %z 2016 Dec 4 -3:00 - %z d1439 1 a1439 1 -5:00 CO %z d1477 1 a1477 1 -5:00 Ecuador %z d1479 2 a1480 2 -5:00 - %z 1986 -6:00 Ecuador %z d1580 4 a1583 4 -4:00 Falk %z 1983 May -3:00 Falk %z 1985 Sep 15 -4:00 Falk %z 2010 Sep 5 2:00 -3:00 - %z d1591 2 a1592 2 -4:00 - %z 1967 Oct -3:00 - %z d1626 4 a1629 4 -4:00 - %z 1915 Mar 1 -3:45 - %z 1975 Aug 1 -3:00 - %z 1992 Mar 29 1:00 -4:00 - %z d1727 3 a1729 3 -4:00 - %z 1972 Oct -3:00 - %z 1974 Apr -4:00 Para %z d1756 1 a1756 1 -5:00 Peru %z d1761 1 a1761 1 -2:00 - %z d1771 2 a1772 2 -3:30 - %z 1984 Oct -3:00 - %z d1994 9 a2002 9 -4:00 - %z 1923 Oct 1 -3:30 Uruguay %z 1942 Dec 14 -3:00 Uruguay %z 1960 -3:00 Uruguay %z 1968 -3:00 Uruguay %z 1970 -3:00 Uruguay %z 1974 -3:00 Uruguay %z 1974 Mar 10 -3:00 Uruguay %z 1974 Dec 22 -3:00 Uruguay %z d2036 4 a2039 4 -4:30 - %z 1965 Jan 1 0:00 -4:00 - %z 2007 Dec 9 3:00 -4:30 - %z 2016 May 1 2:30 -4:00 - %z @ 1.1.1.27 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 @d588 6 d1443 5 d1449 2 d1703 1 a1703 1 Rule Para 2010 2024 - Oct Sun>=1 0:00 1:00 - d1722 1 a1722 21 Rule Para 2013 2024 - Mar Sun>=22 0:00 0 - # # From Heitor David Pinto (2024-09-24): # Today the Congress of Paraguay passed a bill to observe UTC-3 permanently.... # The text of the bill says that it would enter into force on the first # Sunday in October 2024, the same date currently scheduled to start DST.... # https://silpy.congreso.gov.py/web/expediente/132531 # (2024-10-14): # The president approved the law on 11 October 2024, # and it was officially published on 14 October 2024. # https://www.gacetaoficial.gov.py/index/detalle_publicacion/89723 # The text of the law says that it enters into force on the first # Sunday in October 2024 (6 October 2024). But the constitution # prohibits retroactive effect, and the civil code says that laws # enter into force on the day after their publication or on the day # that they specify, and it also says that they don't have retroactive # effect. So I think that the time change on 6 October 2024 should # still be considered as DST according to the previous law, and # permanently UTC-3 from 15 October 2024 according to the new law.... # https://www.constituteproject.org/constitution/Paraguay_2011 # https://www.oas.org/dil/esp/codigo_civil_paraguay.pdf d1729 1 a1729 2 -4:00 Para %z 2024 Oct 15 -3:00 - %z d1774 7 @ 1.1.1.28 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 @a587 6 # Aruba # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad -4:30 - -0430 1965 -4:00 - AST a1436 5 # Curaçao # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad -4:30 - -0430 1965 -4:00 - AST a1437 2 Link America/Curacao America/Kralendijk Link America/Curacao America/Lower_Princes a1781 7 # Trinidad and Tobago # Zone NAME STDOFF RULES FORMAT [UNTIL] Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 -4:00 - AST Link America/Port_of_Spain America/Marigot Link America/Port_of_Spain America/St_Barthelemy @ 1.1.1.29 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 @d1255 1 a1255 5 # From Tim Parenti (2025-03-22): # Decreto 307 of 2014 of the Ministry of the Interior and Public Security, # promulgated 2014-01-30 and published 2014-02-19: # https://www.diariooficial.interior.gob.cl/media/2014/02/19/do-20140219.pdf#page=1 # https://www.bcn.cl/leychile/navegar?idNorma=1059557 d1260 4 a1263 5 # From Tim Parenti (2025-03-22): # Decreto 106 of 2015 of the Ministry of the Interior and Public Security, # promulgated 2015-01-27 and published 2015-03-03: # https://www.diariooficial.interior.gob.cl/media/2015/03/03/do-20150303.pdf#page=1 # https://www.bcn.cl/leychile/navegar?idNorma=1075157 d1266 3 a1268 1 # The decree regarding DST has been published in today's Official Gazette... d1272 1 d1274 1 a1277 5 # From Tim Parenti (2025-03-22): # Decreto 253 of 2016 of the Ministry of the Interior and Public Security, # promulgated 2016-03-16 and published 2016-03-18. # https://www.diariooficial.interior.gob.cl/media/2016/03/18/do-20160318.pdf#page=1 # https://www.bcn.cl/leychile/navegar?idNorma=1088502 d1282 2 a1283 6 # From Tim Parenti (2025-03-22), via Deborah Goldsmith (2017-01-19): # Decreto 1820 of 2016 of the Ministry of the Interior and Public Security, # promulgated 2016-12-02 and published 2017-01-17: # https://www.diariooficial.interior.gob.cl/publicaciones/2017/01/17/41660/01/1169626.pdf # https://www.bcn.cl/leychile/Navegar?idNorma=1099217 # Model this as a change to standard offset effective 2016-12-04. d1302 2 a1303 5 # From Tim Parenti (2025-03-22), via Juan Correa (2019-02-04): # Decreto 1286 of 2018 of the Ministry of the Interior and Public Security, # promulgated 2018-09-21 and published 2018-11-23: # https://www.diariooficial.interior.gob.cl/publicaciones/2018/11/23/42212/01/1498738.pdf # https://www.bcn.cl/leychile/Navegar?idNorma=1125760 d1307 1 a1307 4 # Magallanes region to UTC -3 "indefinitely". # From Tim Parenti (2025-03-22): # Decreto 143 of 2022 of the Ministry of the Interior and Public Security, # promulgated 2022-03-29 and published 2022-03-31: a1308 1 # https://www.bcn.cl/leychile/Navegar?idNorma=1174342 d1317 1 a1317 3 # From Tim Parenti (2025-03-22), via Eduardo Romero Urra (2022-08-17): # Decreto 224 of 2022 of the Ministry of the Interior and Public Security, # promulgated 2022-07-14 and published 2022-08-13: a1318 1 # https://www.bcn.cl/leychile/navegar?idNorma=1179983 a1323 20 # From Paul Eggert (2025-01-15): # Diario Regional Aysén's Sebastián Martel reports that 94% of Aysén # citizens polled in November favored changing the rules from # -04/-03-with-DST to -03 all year... # https://www.diarioregionalaysen.cl/noticia/actualidad/2024/12/presentan-decision-que-gano-la-votacion-sobre-el-cambio-del-huso-horario-en-aysen # # From Yonathan Dossow (2025-03-20): # [T]oday we have more confirmation of the change. [Aysén] region will keep # UTC-3 all year... # https://www.cnnchile.com/pais/region-de-aysen-mantendra-horario-de-verano-todo-el-ano_20250320/ # https://www.latercera.com/nacional/noticia/tras-consulta-ciudadana-region-de-aysen-mantendra-el-horario-de-verano-durante-todo-el-ano/ # https://x.com/min_interior/status/1902692504270672098 # # From Tim Parenti (2025-03-22), via Eduardo Romero Urra (2025-03-20): # Decreto 93 of 2025 of the Ministry of the Interior and Public Security, # promulgated 2025-03-11 and published 2025-03-20: # https://www.diariooficial.interior.gob.cl/publicaciones/2025/03/20/44104/01/2624263.pdf # https://www.bcn.cl/leychile/Navegar?idNorma=1211955 # Model this as a change to standard offset effective 2025-03-20. a1379 14 Zone America/Coyhaique -4:48:16 - LMT 1890 -4:42:45 - SMT 1910 Jan 10 -5:00 - %z 1916 Jul 1 -4:42:45 - SMT 1918 Sep 10 -4:00 - %z 1919 Jul 1 -4:42:45 - SMT 1927 Sep 1 -5:00 Chile %z 1932 Sep 1 -4:00 - %z 1942 Jun 1 -5:00 - %z 1942 Aug 1 -4:00 - %z 1946 Aug 28 24:00 -5:00 1:00 %z 1947 Mar 31 24:00 -5:00 - %z 1947 May 21 23:00 -4:00 Chile %z 2025 Mar 20 -3:00 - %z @ 1.1.1.30 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 southamerica was added on branch tls-maxphys on 2014-08-20 00:00:21 +0000 @ text @d1 1699 @ 1.1.1.1.6.2 log @Rebase to HEAD as of a few days ago. @ text @a0 1699 # 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 (2006-03-22): # 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). # # For data circa 1899, a common source is: # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94 # . # # 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. # # Earlier editions of these tables used the North American style (e.g. ARST and # ARDT for Argentine Standard and Daylight Time), but the following quote # suggests that it's better to use European style (e.g. ART and ARST). # I suggest the use of _Summer time_ instead of the more cumbersome # _daylight-saving time_. _Summer time_ seems to be in general use # in Europe and South America. # -- E O Cutler, _New York Times_ (1937-02-14), quoted in # H L Mencken, _The American Language: Supplement I_ (1960), p 466 # # Earlier editions of these tables also used the North American style # for time zones in Brazil, but this was incorrect, as Brazilians say # "summer time". Reinaldo Goulart, a São Paulo businessman active in # the railroad sector, writes (1999-07-06): # The subject of time zones is currently a matter of discussion/debate in # Brazil. Let's say that "the Brasília time" is considered the # "official time" because Brasília is the capital city. # The other three time zones are called "Brasília time "minus one" or # "plus one" or "plus two". As far as I know there is no such # name/designation as "Eastern Time" or "Central Time". # So I invented the following (English-language) abbreviations for now. # Corrections are welcome! # std dst # -2:00 FNT FNST Fernando de Noronha # -3:00 BRT BRST Brasília # -4:00 AMT AMST Amazon # -5:00 ACT ACST Acre ############################################################################### ############################################################################### # Argentina # From Bob Devine (1988-01-28): # Argentina: first Sunday in October to first Sunday in April since 1976. # Double Summer time from 1969 to 1974. Switches at midnight. # From U. S. Naval Observatory (1988-01-19): # ARGENTINA 3 H BEHIND UTC # From Hernan G. Otero (1995-06-26): # I am sending modifications to the Argentine time zone table... # AR was chosen because they are the ISO letters that represent Argentina. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Arg 1930 only - Dec 1 0:00 1:00 S Rule Arg 1931 only - Apr 1 0:00 0 - Rule Arg 1931 only - Oct 15 0:00 1:00 S Rule Arg 1932 1940 - Mar 1 0:00 0 - Rule Arg 1932 1939 - Nov 1 0:00 1:00 S Rule Arg 1940 only - Jul 1 0:00 1:00 S Rule Arg 1941 only - Jun 15 0:00 0 - Rule Arg 1941 only - Oct 15 0:00 1:00 S Rule Arg 1943 only - Aug 1 0:00 0 - Rule Arg 1943 only - Oct 15 0:00 1:00 S Rule Arg 1946 only - Mar 1 0:00 0 - Rule Arg 1946 only - Oct 1 0:00 1:00 S Rule Arg 1963 only - Oct 1 0:00 0 - Rule Arg 1963 only - Dec 15 0:00 1:00 S Rule Arg 1964 1966 - Mar 1 0:00 0 - Rule Arg 1964 1966 - Oct 15 0:00 1:00 S Rule Arg 1967 only - Apr 2 0:00 0 - Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S Rule Arg 1968 1969 - Apr Sun>=1 0:00 0 - Rule Arg 1974 only - Jan 23 0:00 1:00 S Rule Arg 1974 only - May 1 0:00 0 - Rule Arg 1988 only - Dec 1 0:00 1:00 S # # From Hernan G. Otero (1995-06-26): # These corrections were contributed by InterSoft Argentina S.A., # obtaining the data from the: # Talleres de Hidrografía Naval Argentina # (Argentine Naval Hydrography Institute) Rule Arg 1989 1993 - Mar Sun>=1 0:00 0 - Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S # # From Hernan G. Otero (1995-06-26): # From this moment on, the law that mandated the daylight saving # time corrections was derogated and no more modifications # to the time zones (for daylight saving) are now made. # # From Rives McDow (2000-01-10): # On October 3, 1999, 0:00 local, Argentina implemented daylight savings time, # which did not result in the switch of a time zone, as they stayed 9 hours # from the International Date Line. Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 S # From Paul Eggert (2007-12-28): # DST was set to expire on March 5, not March 3, but since it was converted # to standard time on March 3 it's more convenient for us to pretend that # it ended on March 3. Rule Arg 2000 only - Mar 3 0:00 0 - # # From Peter Gradelski via Steffen Thorsen (2000-03-01): # We just checked with our São Paulo office and they say the government of # Argentina decided not to become one of the countries that go on or off DST. # So Buenos Aires should be -3 hours from GMT at all times. # # From Fabián L. Arce Jofré (2000-04-04): # The law that claimed DST for Argentina was derogated by President Fernando # de la Rúa on March 2, 2000, because it would make people spend more energy # in the winter time, rather than less. The change took effect on March 3. # # From Mariano Absatz (2001-06-06): # one of the major newspapers here in Argentina said that the 1999 # Timezone Law (which never was effectively applied) will (would?) be # in effect.... The article is at # http://ar.clarin.com/diario/2001-06-06/e-01701.htm # ... The Law itself is "Ley No 25155", sanctioned on 1999-08-25, enacted # 1999-09-17, and published 1999-09-21. The official publication is at: # http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF # Regretfully, you have to subscribe (and pay) for the on-line version.... # # (2001-06-12): # the timezone for Argentina will not change next Sunday. # Apparently it will do so on Sunday 24th.... # http://ar.clarin.com/diario/2001-06-12/s-03501.htm # # (2001-06-25): # Last Friday (yes, the last working day before the date of the change), the # Senate annulled the 1999 law that introduced the changes later postponed. # http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm # It remains the vote of the Deputies..., but it will be the same.... # This kind of things had always been done this way in Argentina. # We are still -03:00 all year round in all of the country. # # From Steffen Thorsen (2007-12-21): # A user (Leonardo Chaim) reported that Argentina will adopt DST.... # all of the country (all Zone-entries) are affected. News reports like # http://www.lanacion.com.ar/opinion/nota.asp?nota_id=973037 indicate # that Argentina will use DST next year as well, from October to # March, although exact rules are not given. # # From Jesper Nørgaard Welen (2007-12-26) # The last hurdle of Argentina DST is over, the proposal was approved in # the lower chamber too (Diputados) with a vote 192 for and 2 against. # By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to # the original scanned proposal, where the dates and the zero hours are # clear and unambiguous...This is the article about final approval: # http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996 # # From Paul Eggert (2007-12-22): # For dates after mid-2008, the following rules are my guesses and # are quite possibly wrong, but are more likely than no DST at all. # From Alexander Krivenyshev (2008-09-05): # As per message from Carlos Alberto Fonseca Arauz (Nicaragua), # Argentina will start DST on Sunday October 19, 2008. # # http://www.worldtimezone.com/dst_news/dst_news_argentina03.html # http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish) # From Rodrigo Severo (2008-10-06): # Here is some info available at a Gentoo bug related to TZ on Argentina's DST: # ... # ------- Comment #1 from [jmdocile] 2008-10-06 16:28 0000 ------- # Hi, there is a problem with timezone-data-2008e and maybe with # timezone-data-2008f # Argentinian law [Number] 25.155 is no longer valid. # http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm # The new one is law [Number] 26.350 # http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm # So there is no summer time in Argentina for now. # From Mariano Absatz (2008-10-20): # Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST in Argentina # From 2008-10-19 until 2009-03-15 # http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01 # # Decree 1705/2008 excepting 12 Provinces from applying DST in the summer # 2008/2009: Catamarca, La Rioja, Mendoza, Salta, San Juan, San Luis, La # Pampa, Neuquén, Rio Negro, Chubut, Santa Cruz and Tierra del Fuego # http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01 # # Press release 235 dated Saturday October 18th, from the Government of the Province of Jujuy saying # it will not apply DST either (even when it was not included in Decree 1705/2008) # http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc # From fullinet (2009-10-18): # As announced in # http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356 # (an official .gob.ar) under title: "Sin Cambio de Hora" (english: "No hour change") # # "Por el momento, el Gobierno Nacional resolvió no modificar la hora # oficial, decisión que estaba en estudio para su implementación el # domingo 18 de octubre. Desde el Ministerio de Planificación se anunció # que la Argentina hoy, en estas condiciones meteorológicas, no necesita # la modificación del huso horario, ya que 2009 nos encuentra con # crecimiento en la producción y distribución energética." Rule Arg 2007 only - Dec 30 0:00 1:00 S Rule Arg 2008 2009 - Mar Sun>=15 0:00 0 - Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S # From Mariano Absatz (2004-05-21): # Today it was officially published that the Province of Mendoza is changing # its timezone this winter... starting tomorrow night.... # http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf # From Paul Eggert (2004-05-24): # It's Law No. 7,210. This change is due to a public power emergency, so for # now we'll assume it's for this year only. # # From Paul Eggert (2006-03-22): # Hora de verano para la Republica Argentina (2003-06-08) # # says that standard time in Argentina from 1894-10-31 # to 1920-05-01 was -4:16:48.25. Go with this more-precise value # over Shanks & Pottenger. # # From Mariano Absatz (2004-06-05): # These media articles from a major newspaper mostly cover the current state: # http://www.lanacion.com.ar/04/05/27/de_604825.asp # http://www.lanacion.com.ar/04/05/28/de_605203.asp # # The following eight (8) provinces pulled clocks back to UTC-04:00 at # midnight Monday May 31st. (that is, the night between 05/31 and 06/01). # Apparently, all nine provinces would go back to UTC-03:00 at the same # time in October 17th. # # Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz, # Tierra del Fuego, Tucumán. # # From Mariano Absatz (2004-06-14): # ... this weekend, the Province of Tucumán decided it'd go back to UTC-03:00 # yesterday midnight (that is, at 24:00 Saturday 12th), since the people's # annoyance with the change is much higher than the power savings obtained.... # # From Gwillim Law (2004-06-14): # http://www.lanacion.com.ar/04/06/10/de_609078.asp ... # "The time change in Tierra del Fuego was a conflicted decision from # the start. The government had decreed that the measure would take # effect on June 1, but a normative error forced the new time to begin # three days earlier, from a Saturday to a Sunday.... # Our understanding was that the change was originally scheduled to take place # on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other # provinces). Sunday was May 30, only two days earlier. So the article # contains a contradiction. I would give more credence to the Saturday/Sunday # date than the "three days earlier" phrase, and conclude that Tierra del # Fuego set its clocks back at 2004-05-30 00:00. # # From Steffen Thorsen (2004-10-05): # The previous law 7210 which changed the province of Mendoza's time zone # back in May have been modified slightly in a new law 7277, which set the # new end date to 2004-09-26 (original date was 2004-10-17). # http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf # # From Mariano Absatz (2004-10-05): # San Juan changed from UTC-03:00 to UTC-04:00 at midnight between # Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00 # at midnight between Saturday, July 24th and Sunday, July 25th.... # http://www.sanjuan.gov.ar/prensa/archivo/000329.html # http://www.sanjuan.gov.ar/prensa/archivo/000426.html # http://www.sanjuan.gov.ar/prensa/archivo/000441.html # From Alex Krivenyshev (2008-01-17): # Here are articles that Argentina Province San Luis is planning to end DST # as earlier as upcoming Monday January 21, 2008 or February 2008: # # Provincia argentina retrasa reloj y marca diferencia con resto del país # (Argentine Province delayed clock and mark difference with the rest of the # country) # http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel # # Es inminente que en San Luis atrasen una hora los relojes # (It is imminent in San Luis clocks one hour delay) # http://www.lagaceta.com.ar/nota/253414/Economia/Es-inminente-que-en-San-Luis-atrasen-una-hora-los-relojes.html # http://www.worldtimezone.net/dst_news/dst_news_argentina02.html # From Jesper Nørgaard Welen (2008-01-18): # The page of the San Luis provincial government # http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812 # confirms what Alex Krivenyshev has earlier sent to the tz # emailing list about that San Luis plans to return to standard # time much earlier than the rest of the country. It also # confirms that upon request the provinces San Juan and Mendoza # refused to follow San Luis in this change. # # The change is supposed to take place Monday the 21.st at 0:00 # hours. As far as I understand it if this goes ahead, we need # a new timezone for San Luis (although there are also documented # independent changes in the southamerica file of San Luis in # 1990 and 1991 which has not been confirmed). # From Jesper Nørgaard Welen (2008-01-25): # Unfortunately the below page has become defunct, about the San Luis # time change. Perhaps because it now is part of a group of pages "Most # important pages of 2008." # # You can use # http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834 # instead it seems. Or use "Buscador" from the main page of the San Luis # government, and fill in "huso" and click OK, and you will get 3 pages # from which the first one is identical to the above. # From Mariano Absatz (2008-01-28): # I can confirm that the Province of San Luis (and so far only that # province) decided to go back to UTC-3 effective midnight Jan 20th 2008 # (that is, Monday 21st at 0:00 is the time the clocks were delayed back # 1 hour), and they intend to keep UTC-3 as their timezone all year round # (that is, unless they change their mind any minute now). # # So we'll have to add yet another city to 'southamerica' (I think San # Luis city is the mos populated city in the Province, so it'd be # America/Argentina/San_Luis... of course I can't remember if San Luis's # history of particular changes goes along with Mendoza or San Juan :-( # (I only remember not being able to collect hard facts about San Luis # back in 2004, when these provinces changed to UTC-4 for a few days, I # mailed them personally and never got an answer). # From Paul Eggert (2008-06-30): # Unless otherwise specified, data are from Shanks & Pottenger through 1992, # from the IATA otherwise. As noted below, Shanks & Pottenger say that # America/Cordoba split into 6 subregions during 1991/1992, one of which # was America/San_Luis, but we haven't verified this yet so for now we'll # keep America/Cordoba a single region rather than splitting it into the # other 5 subregions. # From Mariano Absatz (2009-03-13): # Yesterday (with our usual 2-day notice) the Province of San Luis # decided that next Sunday instead of "staying" @@utc-03:00 they will go # to utc-04:00 until the second Saturday in October... # # The press release is at # http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102 # (I couldn't find the decree, but www.sanluis.gov.ar # is the official page for the Province Government.) # # There's also a note in only one of the major national papers ... # http://www.lanacion.com.ar/nota.asp?nota_id=1107912 # # The press release says [quick and dirty translation]: # ... announced that next Sunday, at 00:00, Puntanos (the San Luis # inhabitants) will have to turn back one hour their clocks # # Since then, San Luis will establish its own Province timezone. Thus, # during 2009, this timezone change will run from 00:00 the third Sunday # in March until 24:00 of the second Saturday in October. # From Mariano Absatz (2009-10-16): # ...the Province of San Luis is a case in itself. # # The Law at # http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276 # is ambiguous because establishes a calendar from the 2nd Sunday in # October at 0:00 thru the 2nd Saturday in March at 24:00 and the # complement of that starting on the 2nd Sunday of March at 0:00 and # ending on the 2nd Saturday of March at 24:00. # # This clearly breaks every time the 1st of March or October is a Sunday. # # IMHO, the "spirit of the Law" is to make the changes at 0:00 on the 2nd # Sunday of October and March. # # The problem is that the changes in the rest of the Provinces that did # change in 2007/2008, were made according to the Federal Law and Decrees # that did so on the 3rd Sunday of October and March. # # In fact, San Luis actually switched from UTC-4 to UTC-3 last Sunday # (October 11th) at 0:00. # # So I guess a new set of rules, besides "Arg", must be made and the last # America/Argentina/San_Luis entries should change to use these... # # I'm enclosing a patch that does what I say... regretfully, the San Luis # timezone must be called "WART/WARST" even when most of the time (like, # right now) WARST == ART... that is, since last Sunday, all the country # is using UTC-3, but in my patch, San Luis calls it "WARST" and the rest # of the country calls it "ART". # ... # From Alexander Krivenyshev (2010-04-09): # According to news reports from El Diario de la Republica Province San # Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time # after April 11, 2010 - will continue to have same time as rest of # Argentina (UTC-3) (no DST). # # Confirmaron la prórroga del huso horario de verano (Spanish) # http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9 # or (some English translation): # http://www.worldtimezone.com/dst_news/dst_news_argentina08.html # From Mariano Absatz (2010-04-12): # yes...I can confirm this...and given that San Luis keeps calling # UTC-03:00 "summer time", we should't just let San Luis go back to "Arg" # rules...San Luis is still using "Western ARgentina Time" and it got # stuck on Summer daylight savings time even though the summer is over. # From Paul Eggert (2013-09-05): # Perhaps San Luis operates on the legal fiction that it is at UTC-4 # with perpetual summer time, but ordinary usage typically seems to # just say it's at UTC-3; see, for example, # . # We've documented similar situations as being plain changes to # standard time, so let's do that here too. This does not change UTC # offsets, only tm_isdst and the time zone abbreviations. One minor # plus is that this silences a zic complaint that there's no POSIX TZ # setting for time stamps past 2038. # From Paul Eggert (2013-02-21): # Milne says Córdoba time was -4:16:48.2. Round to the nearest second. # Zone NAME GMTOFF RULES FORMAT [UNTIL] # # Buenos Aires (BA), Capital Federal (CF), Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May # Córdoba Mean Time -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 Arg AR%sT # # Córdoba (CB), Santa Fe (SF), Entre Ríos (ER), Corrientes (CN), Misiones (MN), # Chaco (CC), Formosa (FM), Santiago del Estero (SE) # # Shanks & Pottenger also make the following claims, which we haven't verified: # - Formosa switched to -3:00 on 1991-01-07. # - Misiones switched to -3:00 on 1990-12-29. # - Chaco switched to -3:00 on 1991-01-04. # - Santiago del Estero switched to -4:00 on 1991-04-01, # then to -3:00 on 1991-04-26. # Zone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 3 -4:00 - WART 1991 Oct 20 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 Arg AR%sT # # Salta (SA), La Pampa (LP), Neuquén (NQ), Rio Negro (RN) Zone America/Argentina/Salta -4:21:40 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 3 -4:00 - WART 1991 Oct 20 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART # # Tucumán (TM) Zone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 3 -4:00 - WART 1991 Oct 20 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 Jun 1 -4:00 - WART 2004 Jun 13 -3:00 Arg AR%sT # # La Rioja (LR) Zone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 1 -4:00 - WART 1991 May 7 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 Jun 1 -4:00 - WART 2004 Jun 20 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART # # San Juan (SJ) Zone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 1 -4:00 - WART 1991 May 7 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 May 31 -4:00 - WART 2004 Jul 25 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART # # Jujuy (JY) Zone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1990 Mar 4 -4:00 - WART 1990 Oct 28 -4:00 1:00 WARST 1991 Mar 17 -4:00 - WART 1991 Oct 6 -3:00 1:00 ARST 1992 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART # # Catamarca (CT), Chubut (CH) Zone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 3 -4:00 - WART 1991 Oct 20 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 Jun 1 -4:00 - WART 2004 Jun 20 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART # # Mendoza (MZ) Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1990 Mar 4 -4:00 - WART 1990 Oct 15 -4:00 1:00 WARST 1991 Mar 1 -4:00 - WART 1991 Oct 15 -4:00 1:00 WARST 1992 Mar 1 -4:00 - WART 1992 Oct 18 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 May 23 -4:00 - WART 2004 Sep 26 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART # # San Luis (SL) Rule SanLuis 2008 2009 - Mar Sun>=8 0:00 0 - Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 S Zone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1990 -3:00 1:00 ARST 1990 Mar 14 -4:00 - WART 1990 Oct 15 -4:00 1:00 WARST 1991 Mar 1 -4:00 - WART 1991 Jun 1 -3:00 - ART 1999 Oct 3 -4:00 1:00 WARST 2000 Mar 3 -3:00 - ART 2004 May 31 -4:00 - WART 2004 Jul 25 -3:00 Arg AR%sT 2008 Jan 21 -4:00 SanLuis WAR%sT 2009 Oct 11 -3:00 - ART # # Santa Cruz (SC) Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May # Córdoba Mean Time -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 Jun 1 -4:00 - WART 2004 Jun 20 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART # # Tierra del Fuego, Antártida e Islas del Atlántico Sur (TF) Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May # Córdoba Mean Time -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 May 30 -4:00 - WART 2004 Jun 20 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART # Aruba Link America/Curacao America/Aruba # Bolivia # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/La_Paz -4:32:36 - LMT 1890 -4:32:36 - CMT 1931 Oct 15 # Calamarca MT -4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST -4:00 - BOT # Bolivia Time # Brazil # From Paul Eggert (1993-11-18): # The mayor of Rio recently attempted to change the time zone rules # just in his city, in order to leave more summer time for the tourist trade. # The rule change lasted only part of the day; # the federal government refused to follow the city's rules, and business # was in a chaos, so the mayor backed down that afternoon. # From IATA SSIM (1996-02): # _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS), # Santa Catarina (SC), Paraná (PR), São Paulo (SP), Rio de Janeiro (RJ), # Espírito Santo (ES), Minas Gerais (MG), Bahia (BA), Goiás (GO), # Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL]. # [The last three states are new to this issue of the IATA SSIM.] # From Gwillim Law (1996-10-07): # Geography, history (Tocantins was part of Goiás until 1989), and other # sources of time zone information lead me to believe that AL, SE, and TO were # always in BR1, and so the only change was whether or not they observed DST.... # The earliest issue of the SSIM I have is 2/91. Each issue from then until # 9/95 says that DST is observed only in the ten states I quoted from 9/95, # along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2 # (UTC-4).... The other two time zones given for Brazil are BR3, which is # UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is # UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's # become part of the state of Pernambuco). The boundary between BR1 and BR2 # has never been clearly stated. They've simply been called East and West. # However, some conclusions can be drawn from another IATA manual: the Airline # Coding Directory, which lists close to 400 airports in Brazil. For each # airport it gives a time zone which is coded to the SSIM. From that # information, I'm led to conclude that the states of Amapá (AP), Ceará (CE), # Maranhão (MA), Paraíba (PR), Pernambuco (PE), Piauí (PI), and Rio Grande do # Norte (RN), and the eastern part of Pará (PA) are all in BR1 without DST. # From Marcos Tadeu (1998-09-27): # Brazilian official page # From Jesper Nørgaard (2000-11-03): # [For an official list of which regions in Brazil use which time zones, see:] # http://pcdsh01.on.br/Fusbr.htm # http://pcdsh01.on.br/Fusbrhv.htm # From Celso Doria via David Madeo (2002-10-09): # The reason for the delay this year has to do with elections in Brazil. # # Unlike in the United States, elections in Brazil are 100% computerized and # the results are known almost immediately. Yesterday, it was the first # round of the elections when 115 million Brazilians voted for President, # Governor, Senators, Federal Deputies, and State Deputies. Nobody is # counting (or re-counting) votes anymore and we know there will be a second # round for the Presidency and also for some Governors. The 2nd round will # take place on October 27th. # # The reason why the DST will only begin November 3rd is that the thousands # of electoral machines used cannot have their time changed, and since the # Constitution says the elections must begin at 8:00 AM and end at 5:00 PM, # the Government decided to postpone DST, instead of changing the Constitution # (maybe, for the next elections, it will be possible to change the clock)... # From Rodrigo Severo (2004-10-04): # It's just the biannual change made necessary by the much hyped, supposedly # modern Brazilian eletronic voting machines which, apparently, can't deal # with a time change between the first and the second rounds of the elections. # From Steffen Thorsen (2007-09-20): # Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00: # http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975 # From Paul Schulze (2008-06-24): # ...by law number 11.662 of April 24, 2008 (published in the "Diario # Oficial da União"...) in Brazil there are changes in the timezones, # effective today (00:00am at June 24, 2008) as follows: # # a) The timezone UTC+5 is e[x]tinguished, with all the Acre state and the # part of the Amazonas state that had this timezone now being put to the # timezone UTC+4 # b) The whole Pará state now is put at timezone UTC+3, instead of just # part of it, as was before. # # This change follows a proposal of senator Tiao Viana of Acre state, that # proposed it due to concerns about open television channels displaying # programs inappropriate to youths in the states that had the timezone # UTC+5 too early in the night. In the occasion, some more corrections # were proposed, trying to unify the timezones of any given state. This # change modifies timezone rules defined in decree 2.784 of 18 June, # 1913. # From Rodrigo Severo (2008-06-24): # Just correcting the URL: # https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008 # # As a result of the above Decree I believe the America/Rio_Branco # timezone shall be modified from UTC-5 to UTC-4 and a new timezone shall # be created to represent the...west side of the Pará State. I # suggest this new timezone be called Santarem as the most # important/populated city in the affected area. # # This new timezone would be the same as the Rio_Branco timezone up to # the 2008/06/24 change which would be to UTC-3 instead of UTC-4. # From Alex Krivenyshev (2008-06-24): # This is a quick reference page for New and Old Brazil Time Zones map. # http://www.worldtimezone.com/brazil-time-new-old.php # # - 4 time zones replaced by 3 time zones - eliminating time zone UTC-05 # (state Acre and the part of the Amazonas will be UTC/GMT-04) - western # part of Par state is moving to one timezone UTC-03 (from UTC-04). # From Paul Eggert (2002-10-10): # The official decrees referenced below are mostly taken from # Decretos sobre o Horário de Verão no Brasil # . # From Steffen Thorsen (2008-08-29): # As announced by the government and many newspapers in Brazil late # yesterday, Brazil will start DST on 2008-10-19 (need to change rule) and # it will end on 2009-02-15 (current rule for Brazil is fine). Based on # past years experience with the elections, there was a good chance that # the start was postponed to November, but it did not happen this year. # # It has not yet been posted to http://pcdsh01.on.br/DecHV.html # # An official page about it: # http://www.mme.gov.br/site/news/detail.do?newsId=16722 # Note that this link does not always work directly, but must be accessed # by going to # http://www.mme.gov.br/first # # One example link that works directly: # http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54 # (Portuguese) # # We have a written a short article about it as well: # http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html # # From Alexander Krivenyshev (2011-10-04): # State Bahia will return to Daylight savings time this year after 8 years off. # The announcement was made by Governor Jaques Wagner in an interview to a # television station in Salvador. # In Portuguese: # http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html # http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html # From Guilherme Bernardes Rodrigues (2011-10-07): # There is news in the media, however there is still no decree about it. # I just send a e-mail to Zulmira Brandao at http://pcdsh01.on.br/ the # official agency about time in Brazil, and she confirmed that the old rule is # still in force. # From Guilherme Bernardes Rodrigues (2011-10-14) # It's official, the President signed a decree that includes Bahia in summer # time. # [ and in a second message (same day): ] # I found the decree. # # DECRETO No- 7.584, DE 13 DE OUTUBRO DE 2011 # Link : # http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6 # From Kelley Cook (2012-10-16): # The governor of state of Bahia in Brazil announced on Thursday that # due to public pressure, he is reversing the DST policy they implemented # last year and will not be going to Summer Time on October 21st.... # http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-horario-de-verao-na-bahia # From Rodrigo Severo (2012-10-16): # Tocantins state will have DST. # http://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html # From Steffen Thorsen (2013-09-20): # Tocantins in Brazil is very likely not to observe DST from October.... # http://conexaoto.com.br/2013/09/18/ministerio-confirma-que-tocantins-esta-fora-do-horario-de-verao-em-2013-mas-falta-publicacao-de-decreto # We will keep this article updated when this is confirmed: # http://www.timeanddate.com/news/time/brazil-starts-dst-2013.html # From Steffen Thorsen (2013-10-17): # http://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html # Senator Jorge Viana announced that Acre will change time zone on November 10. # He did not specify the time of the change, nor if western parts of Amazonas # will change as well. # # From Paul Eggert (2013-10-17): # For now, assume western Amazonas will change as well. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S # Decree 20,466 (1931-10-01) # Decree 21,896 (1932-01-10) Rule Brazil 1931 only - Oct 3 11:00 1:00 S Rule Brazil 1932 1933 - Apr 1 0:00 0 - Rule Brazil 1932 only - Oct 3 0:00 1:00 S # Decree 23,195 (1933-10-10) # revoked DST. # Decree 27,496 (1949-11-24) # Decree 27,998 (1950-04-13) Rule Brazil 1949 1952 - Dec 1 0:00 1:00 S Rule Brazil 1950 only - Apr 16 1:00 0 - Rule Brazil 1951 1952 - Apr 1 0:00 0 - # Decree 32,308 (1953-02-24) Rule Brazil 1953 only - Mar 1 0:00 0 - # Decree 34,724 (1953-11-30) # revoked DST. # Decree 52,700 (1963-10-18) # established DST from 1963-10-23 00:00 to 1964-02-29 00:00 # in SP, RJ, GB, MG, ES, due to the prolongation of the drought. # Decree 53,071 (1963-12-03) # extended the above decree to all of the national territory on 12-09. Rule Brazil 1963 only - Dec 9 0:00 1:00 S # Decree 53,604 (1964-02-25) # extended summer time by one day to 1964-03-01 00:00 (start of school). Rule Brazil 1964 only - Mar 1 0:00 0 - # Decree 55,639 (1965-01-27) Rule Brazil 1965 only - Jan 31 0:00 1:00 S Rule Brazil 1965 only - Mar 31 0:00 0 - # Decree 57,303 (1965-11-22) Rule Brazil 1965 only - Dec 1 0:00 1:00 S # Decree 57,843 (1966-02-18) Rule Brazil 1966 1968 - Mar 1 0:00 0 - Rule Brazil 1966 1967 - Nov 1 0:00 1:00 S # Decree 63,429 (1968-10-15) # revoked DST. # Decree 91,698 (1985-09-27) Rule Brazil 1985 only - Nov 2 0:00 1:00 S # Decree 92,310 (1986-01-21) # Decree 92,463 (1986-03-13) Rule Brazil 1986 only - Mar 15 0:00 0 - # Decree 93,316 (1986-10-01) Rule Brazil 1986 only - Oct 25 0:00 1:00 S Rule Brazil 1987 only - Feb 14 0:00 0 - # Decree 94,922 (1987-09-22) Rule Brazil 1987 only - Oct 25 0:00 1:00 S Rule Brazil 1988 only - Feb 7 0:00 0 - # Decree 96,676 (1988-09-12) # except for the states of AC, AM, PA, RR, RO, and AP (then a territory) Rule Brazil 1988 only - Oct 16 0:00 1:00 S Rule Brazil 1989 only - Jan 29 0:00 0 - # Decree 98,077 (1989-08-21) # with the same exceptions Rule Brazil 1989 only - Oct 15 0:00 1:00 S Rule Brazil 1990 only - Feb 11 0:00 0 - # Decree 99,530 (1990-09-17) # adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF. # Decree 99,629 (1990-10-19) adds BA, MT. Rule Brazil 1990 only - Oct 21 0:00 1:00 S Rule Brazil 1991 only - Feb 17 0:00 0 - # Unnumbered decree (1991-09-25) # adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF. Rule Brazil 1991 only - Oct 20 0:00 1:00 S Rule Brazil 1992 only - Feb 9 0:00 0 - # Unnumbered decree (1992-10-16) # adopted by same states. Rule Brazil 1992 only - Oct 25 0:00 1:00 S Rule Brazil 1993 only - Jan 31 0:00 0 - # Decree 942 (1993-09-28) # adopted by same states, plus AM. # Decree 1,252 (1994-09-22; # web page corrected 2004-01-07) adopted by same states, minus AM. # Decree 1,636 (1995-09-14) # adopted by same states, plus MT and TO. # Decree 1,674 (1995-10-13) # adds AL, SE. Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 - Rule Brazil 1996 only - Feb 11 0:00 0 - # Decree 2,000 (1996-09-04) # adopted by same states, minus AL, SE. Rule Brazil 1996 only - Oct 6 0:00 1:00 S Rule Brazil 1997 only - Feb 16 0:00 0 - # From Daniel C. Sobral (1998-02-12): # In 1997, the DS began on October 6. The stated reason was that # because international television networks ignored Brazil's policy on DS, # they bought the wrong times on satellite for coverage of Pope's visit. # This year, the ending date of DS was postponed to March 1 # to help dealing with the shortages of electric power. # # Decree 2,317 (1997-09-04), adopted by same states. Rule Brazil 1997 only - Oct 6 0:00 1:00 S # Decree 2,495 # (1998-02-10) Rule Brazil 1998 only - Mar 1 0:00 0 - # Decree 2,780 (1998-09-11) # adopted by the same states as before. Rule Brazil 1998 only - Oct 11 0:00 1:00 S Rule Brazil 1999 only - Feb 21 0:00 0 - # Decree 3,150 # (1999-08-23) adopted by same states. # Decree 3,188 (1999-09-30) # adds SE, AL, PB, PE, RN, CE, PI, MA and RR. Rule Brazil 1999 only - Oct 3 0:00 1:00 S Rule Brazil 2000 only - Feb 27 0:00 0 - # Decree 3,592 (2000-09-06) # adopted by the same states as before. # Decree 3,630 (2000-10-13) # repeals DST in PE and RR, effective 2000-10-15 00:00. # Decree 3,632 (2000-10-17) # repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00. # Decree 3,916 # (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE. Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S Rule Brazil 2001 2006 - Feb Sun>=15 0:00 0 - # Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE. # 4,399 Rule Brazil 2002 only - Nov 3 0:00 1:00 S # Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO. # 4,844 Rule Brazil 2003 only - Oct 19 0:00 1:00 S # Decree 5,223 (2004-10-01) reestablishes DST in MT. # 5,223 Rule Brazil 2004 only - Nov 2 0:00 1:00 S # Decree 5,539 (2005-09-19), # adopted by the same states as before. Rule Brazil 2005 only - Oct 16 0:00 1:00 S # Decree 5,920 (2006-10-03), # adopted by the same states as before. Rule Brazil 2006 only - Nov 5 0:00 1:00 S Rule Brazil 2007 only - Feb 25 0:00 0 - # Decree 6,212 (2007-09-26), # adopted by the same states as before. Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 S # From Frederico A. C. Neves (2008-09-10): # According to this decree # http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm # [t]he DST period in Brazil now on will be from the 3rd Oct Sunday to the # 3rd Feb Sunday. There is an exception on the return date when this is # the Carnival Sunday then the return date will be the next Sunday... Rule Brazil 2008 max - Oct Sun>=15 0:00 1:00 S Rule Brazil 2008 2011 - Feb Sun>=15 0:00 0 - Rule Brazil 2012 only - Feb Sun>=22 0:00 0 - Rule Brazil 2013 2014 - Feb Sun>=15 0:00 0 - Rule Brazil 2015 only - Feb Sun>=22 0:00 0 - Rule Brazil 2016 2022 - Feb Sun>=15 0:00 0 - Rule Brazil 2023 only - Feb Sun>=22 0:00 0 - Rule Brazil 2024 2025 - Feb Sun>=15 0:00 0 - Rule Brazil 2026 only - Feb Sun>=22 0:00 0 - Rule Brazil 2027 2033 - Feb Sun>=15 0:00 0 - Rule Brazil 2034 only - Feb Sun>=22 0:00 0 - Rule Brazil 2035 2036 - Feb Sun>=15 0:00 0 - Rule Brazil 2037 only - Feb Sun>=22 0:00 0 - # From Arthur David Olson (2008-09-29): # The next is wrong in some years but is better than nothing. Rule Brazil 2038 max - Feb Sun>=15 0:00 0 - # The latest ruleset listed above says that the following states observe DST: # DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP. # Zone NAME GMTOFF RULES FORMAT [UNTIL] # # Fernando de Noronha (administratively part of PE) Zone America/Noronha -2:09:40 - LMT 1914 -2:00 Brazil FN%sT 1990 Sep 17 -2:00 - FNT 1999 Sep 30 -2:00 Brazil FN%sT 2000 Oct 15 -2:00 - FNT 2001 Sep 13 -2:00 Brazil FN%sT 2002 Oct 1 -2:00 - FNT # Other Atlantic islands have no permanent settlement. # These include Trindade and Martim Vaz (administratively part of ES), # Rocas Atoll (RN), and the St Peter and St Paul Archipelago (PE). # Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01; # it also included the Penedos. # # Amapá (AP), east Pará (PA) # East Pará includes Belém, Marabá, Serra Norte, and São Félix do Xingu. # The division between east and west Pará is the river Xingu. # In the north a very small part from the river Javary (now Jari I guess, # the border with Amapá) to the Amazon, then to the Xingu. Zone America/Belem -3:13:56 - LMT 1914 -3:00 Brazil BR%sT 1988 Sep 12 -3:00 - BRT # # west Pará (PA) # West Pará includes Altamira, Óbidos, Prainha, Oriximiná, and Santarém. Zone America/Santarem -3:38:48 - LMT 1914 -4:00 Brazil AM%sT 1988 Sep 12 -4:00 - AMT 2008 Jun 24 00:00 -3:00 - BRT # # Maranhão (MA), Piauí (PI), Ceará (CE), Rio Grande do Norte (RN), # Paraíba (PB) Zone America/Fortaleza -2:34:00 - LMT 1914 -3:00 Brazil BR%sT 1990 Sep 17 -3:00 - BRT 1999 Sep 30 -3:00 Brazil BR%sT 2000 Oct 22 -3:00 - BRT 2001 Sep 13 -3:00 Brazil BR%sT 2002 Oct 1 -3:00 - BRT # # Pernambuco (PE) (except Atlantic islands) Zone America/Recife -2:19:36 - LMT 1914 -3:00 Brazil BR%sT 1990 Sep 17 -3:00 - BRT 1999 Sep 30 -3:00 Brazil BR%sT 2000 Oct 15 -3:00 - BRT 2001 Sep 13 -3:00 Brazil BR%sT 2002 Oct 1 -3:00 - BRT # # Tocantins (TO) Zone America/Araguaina -3:12:48 - LMT 1914 -3:00 Brazil BR%sT 1990 Sep 17 -3:00 - BRT 1995 Sep 14 -3:00 Brazil BR%sT 2003 Sep 24 -3:00 - BRT 2012 Oct 21 -3:00 Brazil BR%sT 2013 Sep -3:00 - BRT # # Alagoas (AL), Sergipe (SE) Zone America/Maceio -2:22:52 - LMT 1914 -3:00 Brazil BR%sT 1990 Sep 17 -3:00 - BRT 1995 Oct 13 -3:00 Brazil BR%sT 1996 Sep 4 -3:00 - BRT 1999 Sep 30 -3:00 Brazil BR%sT 2000 Oct 22 -3:00 - BRT 2001 Sep 13 -3:00 Brazil BR%sT 2002 Oct 1 -3:00 - BRT # # Bahia (BA) # There are too many Salvadors elsewhere, so use America/Bahia instead # of America/Salvador. Zone America/Bahia -2:34:04 - LMT 1914 -3:00 Brazil BR%sT 2003 Sep 24 -3:00 - BRT 2011 Oct 16 -3:00 Brazil BR%sT 2012 Oct 21 -3:00 - BRT # # Goiás (GO), Distrito Federal (DF), Minas Gerais (MG), # Espírito Santo (ES), Rio de Janeiro (RJ), São Paulo (SP), Paraná (PR), # Santa Catarina (SC), Rio Grande do Sul (RS) Zone America/Sao_Paulo -3:06:28 - LMT 1914 -3:00 Brazil BR%sT 1963 Oct 23 00:00 -3:00 1:00 BRST 1964 -3:00 Brazil BR%sT # # Mato Grosso do Sul (MS) Zone America/Campo_Grande -3:38:28 - LMT 1914 -4:00 Brazil AM%sT # # Mato Grosso (MT) Zone America/Cuiaba -3:44:20 - LMT 1914 -4:00 Brazil AM%sT 2003 Sep 24 -4:00 - AMT 2004 Oct 1 -4:00 Brazil AM%sT # # Rondônia (RO) Zone America/Porto_Velho -4:15:36 - LMT 1914 -4:00 Brazil AM%sT 1988 Sep 12 -4:00 - AMT # # Roraima (RR) Zone America/Boa_Vista -4:02:40 - LMT 1914 -4:00 Brazil AM%sT 1988 Sep 12 -4:00 - AMT 1999 Sep 30 -4:00 Brazil AM%sT 2000 Oct 15 -4:00 - AMT # # east Amazonas (AM): Boca do Acre, Jutaí, Manaus, Floriano Peixoto # The great circle line from Tabatinga to Porto Acre divides # east from west Amazonas. Zone America/Manaus -4:00:04 - LMT 1914 -4:00 Brazil AM%sT 1988 Sep 12 -4:00 - AMT 1993 Sep 28 -4:00 Brazil AM%sT 1994 Sep 22 -4:00 - AMT # # west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant, # Eirunepé, Envira, Ipixuna Zone America/Eirunepe -4:39:28 - LMT 1914 -5:00 Brazil AC%sT 1988 Sep 12 -5:00 - ACT 1993 Sep 28 -5:00 Brazil AC%sT 1994 Sep 22 -5:00 - ACT 2008 Jun 24 00:00 -4:00 - AMT 2013 Nov 10 -5:00 - ACT # # Acre (AC) Zone America/Rio_Branco -4:31:12 - LMT 1914 -5:00 Brazil AC%sT 1988 Sep 12 -5:00 - ACT 2008 Jun 24 00:00 -4:00 - AMT 2013 Nov 10 -5:00 - ACT # Chile # From Eduardo Krell (1995-10-19): # The law says to switch to DST at midnight [24:00] on the second SATURDAY # of October.... The law is the same for March and October. # (1998-09-29): # Because of the drought this year, the government decided to go into # DST earlier (saturday 9/26 at 24:00). This is a one-time change only ... # (unless there's another dry season next year, I guess). # From Julio I. Pacheco Troncoso (1999-03-18): # Because of the same drought, the government decided to end DST later, # on April 3, (one-time change). # From Oscar van Vlijmen (2006-10-08): # http://www.horaoficial.cl/cambio.htm # From Jesper Nørgaard Welen (2006-10-08): # I think that there are some obvious mistakes in the suggested link # from Oscar van Vlijmen,... for instance entry 66 says that GMT-4 # ended 1990-09-12 while entry 67 only begins GMT-3 at 1990-09-15 # (they should have been 1990-09-15 and 1990-09-16 respectively), but # anyhow it clears up some doubts too. # From Paul Eggert (2006-12-27): # The following data for Chile and America/Santiago are from # (2006-09-20), transcribed by # Jesper Nørgaard Welen. The data for Pacific/Easter are from Shanks # & Pottenger, except with DST transitions after 1932 cloned from # America/Santiago. The pre-1980 Pacific/Easter data are dubious, # but we have no other source. # From Germán Poo-Caamaño (2008-03-03): # Due to drought, Chile extends Daylight Time in three weeks. This # is one-time change (Saturday 3/29 at 24:00 for America/Santiago # and Saturday 3/29 at 22:00 for Pacific/Easter) # The Supreme Decree is located at # http://www.shoa.cl/servicios/supremo316.pdf # and the instructions for 2008 are located in: # http://www.horaoficial.cl/cambio.htm # From José Miguel Garrido (2008-03-05): # ... # You could see the announces of the change on # http://www.shoa.cl/noticias/2008/04hora/hora.htm # From Angel Chiang (2010-03-04): # Subject: DST in Chile exceptionally extended to 3 April due to earthquake # http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098 # (in Spanish, last paragraph). # # This is breaking news. There should be more information available later. # From Arthur Daivd Olson (2010-03-06): # Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch. # From Glenn Eychaner (2011-03-02): [geychaner@@mac.com] # It appears that the Chilean government has decided to postpone the # change from summer time to winter time again, by three weeks to April # 2nd: # http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651 # # This is not yet reflected in the official "cambio de hora" site, but # probably will be soon: # http://www.horaoficial.cl/cambio.htm # From Arthur David Olson (2011-03-02): # The emol.com article mentions a water shortage as the cause of the # postponement, which may mean that it's not a permanent change. # From Glenn Eychaner (2011-03-28): # The article: # http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E} # # In English: # Chile's clocks will go back an hour this year on the 7th of May instead # of this Saturday. They will go forward again the 3rd Saturday in # August, not in October as they have since 1968. This is a pilot plan # which will be reevaluated in 2012. # From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23): # As stated in the website of the Chilean Energy Ministry # http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html # The Chilean Government has decided to postpone the entrance into winter time # (to leave DST) from March 11 2012 to April 28th 2012. The decision has not # been yet formalized but it will within the next days. # Quote from the website communication: # # 6. For the year 2012, the dates of entry into winter time will be as follows: # a. Saturday April 28, 2012, clocks should go back 60 minutes; that is, at # 23:59:59, instead of passing to 0:00, the time should be adjusted to be 23:00 # of the same day. # b. Saturday, September 1, 2012, clocks should go forward 60 minutes; that is, # at 23:59:59, instead of passing to 0:00, the time should be adjusted to be # 01:00 on September 2. # From Steffen Thorsen (2013-02-15): # According to several news sources, Chile has extended DST this year, # they will end DST later and start DST earlier than planned. They # hope to save energy. The new end date is 2013-04-28 00:00 and new # start date is 2013-09-08 00:00.... # http://www.gob.cl/informa/2013/02/15/gobierno-anuncia-fechas-de-cambio-de-hora-para-el-ano-2013.htm # From José Miguel Garrido (2014-02-19): # Today appeared in the Diario Oficial a decree amending the time change # dates to 2014. # DST End: last Saturday of April 2014 (Sun 27 Apr 2014 03:00 UTC) # DST Start: first Saturday of September 2014 (Sun 07 Sep 2014 04:00 UTC) # http://www.diariooficial.interior.gob.cl//media/2014/02/19/do-20140219.pdf # NOTE: ChileAQ rules for Antarctic bases are stored separately in the # 'antarctica' file. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Chile 1927 1932 - Sep 1 0:00 1:00 S Rule Chile 1928 1932 - Apr 1 0:00 0 - Rule Chile 1942 only - Jun 1 4:00u 0 - Rule Chile 1942 only - Aug 1 5:00u 1:00 S Rule Chile 1946 only - Jul 15 4:00u 1:00 S Rule Chile 1946 only - Sep 1 3:00u 0:00 - Rule Chile 1947 only - Apr 1 4:00u 0 - Rule Chile 1968 only - Nov 3 4:00u 1:00 S Rule Chile 1969 only - Mar 30 3:00u 0 - Rule Chile 1969 only - Nov 23 4:00u 1:00 S Rule Chile 1970 only - Mar 29 3:00u 0 - Rule Chile 1971 only - Mar 14 3:00u 0 - Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 S Rule Chile 1972 1986 - Mar Sun>=9 3:00u 0 - Rule Chile 1973 only - Sep 30 4:00u 1:00 S Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S Rule Chile 1987 only - Apr 12 3:00u 0 - Rule Chile 1988 1989 - Mar Sun>=9 3:00u 0 - Rule Chile 1988 only - Oct Sun>=1 4:00u 1:00 S Rule Chile 1989 only - Oct Sun>=9 4:00u 1:00 S Rule Chile 1990 only - Mar 18 3:00u 0 - Rule Chile 1990 only - Sep 16 4:00u 1:00 S Rule Chile 1991 1996 - Mar Sun>=9 3:00u 0 - Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S Rule Chile 1997 only - Mar 30 3:00u 0 - Rule Chile 1998 only - Mar Sun>=9 3:00u 0 - Rule Chile 1998 only - Sep 27 4:00u 1:00 S Rule Chile 1999 only - Apr 4 3:00u 0 - Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 S Rule Chile 2000 2007 - Mar Sun>=9 3:00u 0 - # N.B.: the end of March 29 in Chile is March 30 in Universal time, # which is used below in specifying the transition. Rule Chile 2008 only - Mar 30 3:00u 0 - Rule Chile 2009 only - Mar Sun>=9 3:00u 0 - Rule Chile 2010 only - Apr Sun>=1 3:00u 0 - Rule Chile 2011 only - May Sun>=2 3:00u 0 - Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 S Rule Chile 2012 max - Apr Sun>=23 3:00u 0 - Rule Chile 2012 max - Sep Sun>=2 4:00u 1:00 S # IATA SSIM anomalies: (1992-02) says 1992-03-14; # (1996-09) says 1998-03-08. Ignore these. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Santiago -4:42:46 - LMT 1890 -4:42:46 - SMT 1910 # Santiago Mean Time -5:00 - CLT 1916 Jul 1 # Chile Time -4:42:46 - SMT 1918 Sep 1 # Santiago Mean Time -4:00 - CLT 1919 Jul 1 # Chile Time -4:42:46 - SMT 1927 Sep 1 # Santiago Mean Time -5:00 Chile CL%sT 1947 May 22 # Chile Time -4:00 Chile CL%sT Zone Pacific/Easter -7:17:44 - LMT 1890 -7:17:28 - EMT 1932 Sep # Easter Mean Time -7:00 Chile EAS%sT 1982 Mar 13 21:00 # Easter I Time -6:00 Chile EAS%sT # # Salas y Gómez Island is uninhabited. # Other Chilean locations, including Juan Fernández Is, Desventuradas Is, # and Antarctic bases, are like America/Santiago. # Colombia # Milne gives 4:56:16.4 for Bogotá time in 1899; round to nearest. He writes, # "A variation of fifteen minutes in the public clocks of Bogota is not rare." # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule CO 1992 only - May 3 0:00 1:00 S Rule CO 1993 only - Apr 4 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Bogota -4:56:16 - LMT 1884 Mar 13 -4:56:16 - BMT 1914 Nov 23 # Bogotá Mean Time -5:00 CO CO%sT # Colombia Time # Malpelo, Providencia, San Andres # no information; probably like America/Bogota # Curaçao # Milne gives 4:35:46.9 for Curaçao mean time; round to nearest. # # From Paul Eggert (2006-03-22): # Shanks & Pottenger say that The Bottom and Philipsburg have been at # -4:00 since standard time was introduced on 1912-03-02; and that # Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from # 1912-02-02 to 1965-01-01. The former is dubious, since S&P also say # Saba Island has been like Curaçao. # This all predates our 1970 cutoff, though. # # By July 2007 Curaçao and St Maarten are planned to become # associated states within the Netherlands, much like Aruba; # Bonaire, Saba and St Eustatius would become directly part of the # Netherlands as Kingdom Islands. This won't affect their time zones # though, as far as we know. # # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad -4:30 - ANT 1965 # Netherlands Antilles Time -4:00 - AST # From Arthur David Olson (2011-06-15): # use links for places with new iso3166 codes. # The name "Lower Prince's Quarter" is both longer than fourteen characters # and contains an apostrophe; use "Lower_Princes" below. Link America/Curacao America/Lower_Princes # Sint Maarten Link America/Curacao America/Kralendijk # Caribbean Netherlands # Ecuador # # Milne says the Central and South American Telegraph Company used -5:24:15. # # From Paul Eggert (2007-03-04): # Apparently Ecuador had a failed experiment with DST in 1992. # (2007-02-27) and # (2006-11-06) both # talk about "hora Sixto". Leave this alone for now, as we have no data. # # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Guayaquil -5:19:20 - LMT 1890 -5:14:00 - QMT 1931 # Quito Mean Time -5:00 - ECT # Ecuador Time Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno -5:00 - ECT 1986 -6:00 - GALT # Galápagos Time # Falklands # From Paul Eggert (2006-03-22): # Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except # the IATA gives 1996-09-08. Go with Shanks & Pottenger. # From Falkland Islands Government Office, London (2001-01-22) # via Jesper Nørgaard: # ... the clocks revert back to Local Mean Time at 2 am on Sunday 15 # April 2001 and advance one hour to summer time at 2 am on Sunday 2 # September. It is anticipated that the clocks will revert back at 2 # am on Sunday 21 April 2002 and advance to summer time at 2 am on # Sunday 1 September. # From Rives McDow (2001-02-13): # # I have communicated several times with people there, and the last # time I had communications that was helpful was in 1998. Here is # what was said then: # # "The general rule was that Stanley used daylight saving and the Camp # did not. However for various reasons many people in the Camp have # started to use daylight saving (known locally as 'Stanley Time') # There is no rule as to who uses daylight saving - it is a matter of # personal choice and so it is impossible to draw a map showing who # uses it and who does not. Any list would be out of date as soon as # it was produced. This year daylight saving ended on April 18/19th # and started again on September 12/13th. I do not know what the rule # is, but can find out if you like. We do not change at the same time # as UK or Chile." # # I did have in my notes that the rule was "Second Saturday in Sep at # 0:00 until third Saturday in Apr at 0:00". I think that this does # not agree in some cases with Shanks; is this true? # # Also, there is no mention in the list that some areas in the # Falklands do not use DST. I have found in my communications there # that these areas are on the western half of East Falkland and all of # West Falkland. Stanley is the only place that consistently observes # DST. Again, as in other places in the world, the farmers don't like # it. West Falkland is almost entirely sheep farmers. # # I know one lady there that keeps a list of which farm keeps DST and # which doesn't each year. She runs a shop in Stanley, and says that # the list changes each year. She uses it to communicate to her # customers, catching them when they are home for lunch or dinner. # From Paul Eggert (2001-03-05): # For now, we'll just record the time in Stanley, since we have no # better info. # From Steffen Thorsen (2011-04-01): # The Falkland Islands will not turn back clocks this winter, but stay on # daylight saving time. # # One source: # http://www.falklandnews.com/public/story.cfm?get=5914&source=3 # # We have gotten this confirmed by a clerk of the legislative assembly: # Normally the clocks revert to Local Mean Time (UTC/GMT -4 hours) on the # third Sunday of April at 0200hrs and advance to Summer Time (UTC/GMT -3 # hours) on the first Sunday of September at 0200hrs. # # IMPORTANT NOTE: During 2011, on a trial basis, the Falkland Islands # will not revert to local mean time, but clocks will remain on Summer # time (UTC/GMT - 3 hours) throughout the whole of 2011. Any long term # change to local time following the trial period will be notified. # # From Andrew Newman (2012-02-24) # A letter from Justin McPhee, Chief Executive, # Cable & Wireless Falkland Islands (dated 2012-02-22) # states... # The current Atlantic/Stanley entry under South America expects the # clocks to go back to standard Falklands Time (FKT) on the 15th April. # The database entry states that in 2011 Stanley was staying on fixed # summer time on a trial basis only. FIG need to contact IANA and/or # the maintainers of the database to inform them we're adopting # the same policy this year and suggest recommendations for future years. # # For now we will assume permanent summer time for the Falklands # until advised differently (to apply for 2012 and beyond, after the 2011 # experiment was apparently successful.) # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 S Rule Falk 1938 1942 - Mar Sun>=19 0:00 0 - Rule Falk 1939 only - Oct 1 0:00 1:00 S Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 S Rule Falk 1943 only - Jan 1 0:00 0 - Rule Falk 1983 only - Sep lastSun 0:00 1:00 S Rule Falk 1984 1985 - Apr lastSun 0:00 0 - Rule Falk 1984 only - Sep 16 0:00 1:00 S Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 S Rule Falk 1986 2000 - Apr Sun>=16 0:00 0 - Rule Falk 2001 2010 - Apr Sun>=15 2:00 0 - Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Atlantic/Stanley -3:51:24 - LMT 1890 -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time -4:00 Falk FK%sT 1983 May # Falkland Is Time -3:00 Falk FK%sT 1985 Sep 15 -4:00 Falk FK%sT 2010 Sep 5 02:00 -3:00 - FKST # French Guiana # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Cayenne -3:29:20 - LMT 1911 Jul -4:00 - GFT 1967 Oct # French Guiana Time -3:00 - GFT # Guyana # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown -3:45 - GBGT 1966 May 26 # Br Guiana Time -3:45 - GYT 1975 Jul 31 # Guyana Time -3:00 - GYT 1991 # IATA SSIM (1996-06) says -4:00. Assume a 1991 switch. -4:00 - GYT # Paraguay # # From Paul Eggert (2006-03-22): # Shanks & Pottenger say that spring transitions are 01:00 -> 02:00, # and autumn transitions are 00:00 -> 23:00. Go with pre-1999 # editions of Shanks, and with the IATA, who say transitions occur at 00:00. # # From Waldemar Villamayor-Venialbo (2013-09-20): # No time of the day is established for the adjustment, so people normally # adjust their clocks at 0 hour of the given dates. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Para 1975 1988 - Oct 1 0:00 1:00 S Rule Para 1975 1978 - Mar 1 0:00 0 - Rule Para 1979 1991 - Apr 1 0:00 0 - Rule Para 1989 only - Oct 22 0:00 1:00 S Rule Para 1990 only - Oct 1 0:00 1:00 S Rule Para 1991 only - Oct 6 0:00 1:00 S Rule Para 1992 only - Mar 1 0:00 0 - Rule Para 1992 only - Oct 5 0:00 1:00 S Rule Para 1993 only - Mar 31 0:00 0 - Rule Para 1993 1995 - Oct 1 0:00 1:00 S Rule Para 1994 1995 - Feb lastSun 0:00 0 - Rule Para 1996 only - Mar 1 0:00 0 - # IATA SSIM (2000-02) says 1999-10-10; ignore this for now. # From Steffen Thorsen (2000-10-02): # I have three independent reports that Paraguay changed to DST this Sunday # (10-01). # # Translated by Gwillim Law (2001-02-27) from # Noticias, a daily paper in Asunción, Paraguay (2000-10-01) # : # Starting at 0:00 today, the clock will be set forward 60 minutes, in # fulfillment of Decree No. 7,273 of the Executive Power.... The time change # system has been operating for several years. Formerly there was a separate # decree each year; the new law has the same effect, but permanently. Every # year, the time will change on the first Sunday of October; likewise, the # clock will be set back on the first Sunday of March. # Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S # IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger. Rule Para 1997 only - Feb lastSun 0:00 0 - # Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but # (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27). Rule Para 1998 2001 - Mar Sun>=1 0:00 0 - # From Rives McDow (2002-02-28): # A decree was issued in Paraguay (no. 16350) on 2002-02-26 that changed the # dst method to be from the first Sunday in September to the first Sunday in # April. Rule Para 2002 2004 - Apr Sun>=1 0:00 0 - Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S # # From Jesper Nørgaard Welen (2005-01-02): # There are several sources that claim that Paraguay made # a timezone rule change in autumn 2004. # From Steffen Thorsen (2005-01-05): # Decree 1,867 (2004-03-05) # From Carlos Raúl Perasso via Jesper Nørgaard Welen (2006-10-13) # Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 S Rule Para 2005 2009 - Mar Sun>=8 0:00 0 - # From Carlos Raúl Perasso (2010-02-18): # By decree number 3958 issued yesterday # http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf # Paraguay changes its DST schedule, postponing the March rule to April and # modifying the October date. The decree reads: # ... # Art. 1. It is hereby established that from the second Sunday of the month of # April of this year (2010), the official time is to be set back 60 minutes, # and that on the first Sunday of the month of October, it is to be set # forward 60 minutes, in all the territory of the Paraguayan Republic. # ... Rule Para 2010 max - Oct Sun>=1 0:00 1:00 S Rule Para 2010 2012 - Apr Sun>=8 0:00 0 - # # From Steffen Thorsen (2013-03-07): # Paraguay will end DST on 2013-03-24 00:00.... # http://www.ande.gov.py/interna.php?id=1075 # # From Carlos Raúl Perasso (2013-03-15): # The change in Paraguay is now final. Decree number 10780 # http://www.presidencia.gov.py/uploads/pdf/presidencia-3b86ff4b691c79d4f5927ca964922ec74772ce857c02ca054a52a37b49afc7fb.pdf # From Carlos Raúl Perasso (2014-02-28): # Decree 1264 can be found at: # http://www.presidencia.gov.py/archivos/documentos/DECRETO1264_ey9r8zai.pdf Rule Para 2013 max - Mar Sun>=22 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Asuncion -3:50:40 - LMT 1890 -3:50:40 - AMT 1931 Oct 10 # Asunción Mean Time -4:00 - PYT 1972 Oct # Paraguay Time -3:00 - PYT 1974 Apr -4:00 Para PY%sT # Peru # # From Evelyn C. Leeper via Mark Brader (2003-10-26) # : # When we were in Peru in 1985-1986, they apparently switched over # sometime between December 29 and January 3 while we were on the Amazon. # # From Paul Eggert (2006-03-22): # Shanks & Pottenger don't have this transition. Assume 1986 was like 1987. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Peru 1938 only - Jan 1 0:00 1:00 S Rule Peru 1938 only - Apr 1 0:00 0 - Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 - Rule Peru 1986 1987 - Jan 1 0:00 1:00 S Rule Peru 1986 1987 - Apr 1 0:00 0 - Rule Peru 1990 only - Jan 1 0:00 1:00 S Rule Peru 1990 only - Apr 1 0:00 0 - # IATA is ambiguous for 1993/1995; go with Shanks & Pottenger. Rule Peru 1994 only - Jan 1 0:00 1:00 S Rule Peru 1994 only - Apr 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Lima -5:08:12 - LMT 1890 -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time? -5:00 Peru PE%sT # Peru Time # South Georgia # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken -2:00 - GST # South Georgia Time # South Sandwich Is # uninhabited; scientific personnel have wintered # Suriname # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Paramaribo -3:40:40 - LMT 1911 -3:40:52 - PMT 1935 # Paramaribo Mean Time -3:40:36 - PMT 1945 Oct # The capital moved? -3:30 - NEGT 1975 Nov 20 # Dutch Guiana Time -3:30 - SRT 1984 Oct # Suriname Time -3:00 - SRT # Trinidad and Tobago # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 -4:00 - AST # These all agree with Trinidad and Tobago since 1970. Link America/Port_of_Spain America/Anguilla Link America/Port_of_Spain America/Dominica Link America/Port_of_Spain America/Grenada Link America/Port_of_Spain America/Guadeloupe Link America/Port_of_Spain America/Marigot # St Martin (French part) Link America/Port_of_Spain America/Montserrat Link America/Port_of_Spain America/St_Barthelemy # St Barthélemy Link America/Port_of_Spain America/St_Kitts # St Kitts & Nevis Link America/Port_of_Spain America/St_Lucia Link America/Port_of_Spain America/St_Thomas # Virgin Islands (US) Link America/Port_of_Spain America/St_Vincent Link America/Port_of_Spain America/Tortola # Virgin Islands (UK) # Uruguay # From Paul Eggert (1993-11-18): # Uruguay wins the prize for the strangest peacetime manipulation of the rules. # From Shanks & Pottenger: # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S # Whitman gives 1923 Oct 1; go with Shanks & Pottenger. Rule Uruguay 1923 only - Oct 2 0:00 0:30 HS Rule Uruguay 1924 1926 - Apr 1 0:00 0 - Rule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS Rule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS # Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman. Rule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 - Rule Uruguay 1936 only - Nov 1 0:00 0:30 HS Rule Uruguay 1937 1941 - Mar lastSun 0:00 0 - # Whitman gives 1937 Oct 3; go with Shanks & Pottenger. Rule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS # Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13, # and 1943 Apr 13 "to present time"; go with Shanks & Pottenger. Rule Uruguay 1941 only - Aug 1 0:00 0:30 HS Rule Uruguay 1942 only - Jan 1 0:00 0 - Rule Uruguay 1942 only - Dec 14 0:00 1:00 S Rule Uruguay 1943 only - Mar 14 0:00 0 - Rule Uruguay 1959 only - May 24 0:00 1:00 S Rule Uruguay 1959 only - Nov 15 0:00 0 - Rule Uruguay 1960 only - Jan 17 0:00 1:00 S Rule Uruguay 1960 only - Mar 6 0:00 0 - Rule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S Rule Uruguay 1965 only - Sep 26 0:00 0 - Rule Uruguay 1966 1967 - Oct 31 0:00 0 - Rule Uruguay 1968 1970 - May 27 0:00 0:30 HS Rule Uruguay 1968 1970 - Dec 2 0:00 0 - Rule Uruguay 1972 only - Apr 24 0:00 1:00 S Rule Uruguay 1972 only - Aug 15 0:00 0 - Rule Uruguay 1974 only - Mar 10 0:00 0:30 HS Rule Uruguay 1974 only - Dec 22 0:00 1:00 S Rule Uruguay 1976 only - Oct 1 0:00 0 - Rule Uruguay 1977 only - Dec 4 0:00 1:00 S Rule Uruguay 1978 only - Apr 1 0:00 0 - Rule Uruguay 1979 only - Oct 1 0:00 1:00 S Rule Uruguay 1980 only - May 1 0:00 0 - Rule Uruguay 1987 only - Dec 14 0:00 1:00 S Rule Uruguay 1988 only - Mar 14 0:00 0 - Rule Uruguay 1988 only - Dec 11 0:00 1:00 S Rule Uruguay 1989 only - Mar 12 0:00 0 - Rule Uruguay 1989 only - Oct 29 0:00 1:00 S # Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2, # and that 1992/3's DST was from 10-25 to 03-01. Go with IATA. Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 - Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S Rule Uruguay 1992 only - Oct 18 0:00 1:00 S Rule Uruguay 1993 only - Feb 28 0:00 0 - # From Eduardo Cota (2004-09-20): # The uruguayan government has decreed a change in the local time.... # http://www.presidencia.gub.uy/decretos/2004091502.htm Rule Uruguay 2004 only - Sep 19 0:00 1:00 S # From Steffen Thorsen (2005-03-11): # Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to # save energy ... it was postponed two weeks.... # http://www.presidencia.gub.uy/_Web/noticias/2005/03/2005031005.htm Rule Uruguay 2005 only - Mar 27 2:00 0 - # From Eduardo Cota (2005-09-27): # http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005_00001.PDF # This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at # 02:00 local time, official time in Uruguay will be at GMT -2. Rule Uruguay 2005 only - Oct 9 2:00 1:00 S Rule Uruguay 2006 only - Mar 12 2:00 0 - # From Jesper Nørgaard Welen (2006-09-06): # http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDF Rule Uruguay 2006 max - Oct Sun>=1 2:00 1:00 S Rule Uruguay 2007 max - Mar Sun>=8 2:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28 -3:44:44 - MMT 1920 May 1 # Montevideo MT -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time -3:00 Uruguay UY%sT # Venezuela # # From John Stainforth (2007-11-28): # ... the change for Venezuela originally expected for 2007-12-31 has # been brought forward to 2007-12-09. The official announcement was # published today in the "Gaceta Oficial de la República Bolivariana # de Venezuela, número 38.819" (official document for all laws or # resolution publication) # http://www.globovision.com/news.php?nid=72208 # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Caracas -4:27:44 - LMT 1890 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time? -4:30 - VET 1965 # Venezuela Time -4:00 - VET 2007 Dec 9 03:00 -4:30 - VET @ 1.1.1.1.2.1 log @file southamerica was added on branch tls-earlyentropy on 2014-08-10 06:51:02 +0000 @ text @d1 1699 @ 1.1.1.1.2.2 log @Rebase. @ text @a0 1699 # 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 (2006-03-22): # 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). # # For data circa 1899, a common source is: # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94 # . # # 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. # # Earlier editions of these tables used the North American style (e.g. ARST and # ARDT for Argentine Standard and Daylight Time), but the following quote # suggests that it's better to use European style (e.g. ART and ARST). # I suggest the use of _Summer time_ instead of the more cumbersome # _daylight-saving time_. _Summer time_ seems to be in general use # in Europe and South America. # -- E O Cutler, _New York Times_ (1937-02-14), quoted in # H L Mencken, _The American Language: Supplement I_ (1960), p 466 # # Earlier editions of these tables also used the North American style # for time zones in Brazil, but this was incorrect, as Brazilians say # "summer time". Reinaldo Goulart, a São Paulo businessman active in # the railroad sector, writes (1999-07-06): # The subject of time zones is currently a matter of discussion/debate in # Brazil. Let's say that "the Brasília time" is considered the # "official time" because Brasília is the capital city. # The other three time zones are called "Brasília time "minus one" or # "plus one" or "plus two". As far as I know there is no such # name/designation as "Eastern Time" or "Central Time". # So I invented the following (English-language) abbreviations for now. # Corrections are welcome! # std dst # -2:00 FNT FNST Fernando de Noronha # -3:00 BRT BRST Brasília # -4:00 AMT AMST Amazon # -5:00 ACT ACST Acre ############################################################################### ############################################################################### # Argentina # From Bob Devine (1988-01-28): # Argentina: first Sunday in October to first Sunday in April since 1976. # Double Summer time from 1969 to 1974. Switches at midnight. # From U. S. Naval Observatory (1988-01-19): # ARGENTINA 3 H BEHIND UTC # From Hernan G. Otero (1995-06-26): # I am sending modifications to the Argentine time zone table... # AR was chosen because they are the ISO letters that represent Argentina. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Arg 1930 only - Dec 1 0:00 1:00 S Rule Arg 1931 only - Apr 1 0:00 0 - Rule Arg 1931 only - Oct 15 0:00 1:00 S Rule Arg 1932 1940 - Mar 1 0:00 0 - Rule Arg 1932 1939 - Nov 1 0:00 1:00 S Rule Arg 1940 only - Jul 1 0:00 1:00 S Rule Arg 1941 only - Jun 15 0:00 0 - Rule Arg 1941 only - Oct 15 0:00 1:00 S Rule Arg 1943 only - Aug 1 0:00 0 - Rule Arg 1943 only - Oct 15 0:00 1:00 S Rule Arg 1946 only - Mar 1 0:00 0 - Rule Arg 1946 only - Oct 1 0:00 1:00 S Rule Arg 1963 only - Oct 1 0:00 0 - Rule Arg 1963 only - Dec 15 0:00 1:00 S Rule Arg 1964 1966 - Mar 1 0:00 0 - Rule Arg 1964 1966 - Oct 15 0:00 1:00 S Rule Arg 1967 only - Apr 2 0:00 0 - Rule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S Rule Arg 1968 1969 - Apr Sun>=1 0:00 0 - Rule Arg 1974 only - Jan 23 0:00 1:00 S Rule Arg 1974 only - May 1 0:00 0 - Rule Arg 1988 only - Dec 1 0:00 1:00 S # # From Hernan G. Otero (1995-06-26): # These corrections were contributed by InterSoft Argentina S.A., # obtaining the data from the: # Talleres de Hidrografía Naval Argentina # (Argentine Naval Hydrography Institute) Rule Arg 1989 1993 - Mar Sun>=1 0:00 0 - Rule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S # # From Hernan G. Otero (1995-06-26): # From this moment on, the law that mandated the daylight saving # time corrections was derogated and no more modifications # to the time zones (for daylight saving) are now made. # # From Rives McDow (2000-01-10): # On October 3, 1999, 0:00 local, Argentina implemented daylight savings time, # which did not result in the switch of a time zone, as they stayed 9 hours # from the International Date Line. Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 S # From Paul Eggert (2007-12-28): # DST was set to expire on March 5, not March 3, but since it was converted # to standard time on March 3 it's more convenient for us to pretend that # it ended on March 3. Rule Arg 2000 only - Mar 3 0:00 0 - # # From Peter Gradelski via Steffen Thorsen (2000-03-01): # We just checked with our São Paulo office and they say the government of # Argentina decided not to become one of the countries that go on or off DST. # So Buenos Aires should be -3 hours from GMT at all times. # # From Fabián L. Arce Jofré (2000-04-04): # The law that claimed DST for Argentina was derogated by President Fernando # de la Rúa on March 2, 2000, because it would make people spend more energy # in the winter time, rather than less. The change took effect on March 3. # # From Mariano Absatz (2001-06-06): # one of the major newspapers here in Argentina said that the 1999 # Timezone Law (which never was effectively applied) will (would?) be # in effect.... The article is at # http://ar.clarin.com/diario/2001-06-06/e-01701.htm # ... The Law itself is "Ley No 25155", sanctioned on 1999-08-25, enacted # 1999-09-17, and published 1999-09-21. The official publication is at: # http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF # Regretfully, you have to subscribe (and pay) for the on-line version.... # # (2001-06-12): # the timezone for Argentina will not change next Sunday. # Apparently it will do so on Sunday 24th.... # http://ar.clarin.com/diario/2001-06-12/s-03501.htm # # (2001-06-25): # Last Friday (yes, the last working day before the date of the change), the # Senate annulled the 1999 law that introduced the changes later postponed. # http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm # It remains the vote of the Deputies..., but it will be the same.... # This kind of things had always been done this way in Argentina. # We are still -03:00 all year round in all of the country. # # From Steffen Thorsen (2007-12-21): # A user (Leonardo Chaim) reported that Argentina will adopt DST.... # all of the country (all Zone-entries) are affected. News reports like # http://www.lanacion.com.ar/opinion/nota.asp?nota_id=973037 indicate # that Argentina will use DST next year as well, from October to # March, although exact rules are not given. # # From Jesper Nørgaard Welen (2007-12-26) # The last hurdle of Argentina DST is over, the proposal was approved in # the lower chamber too (Diputados) with a vote 192 for and 2 against. # By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to # the original scanned proposal, where the dates and the zero hours are # clear and unambiguous...This is the article about final approval: # http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996 # # From Paul Eggert (2007-12-22): # For dates after mid-2008, the following rules are my guesses and # are quite possibly wrong, but are more likely than no DST at all. # From Alexander Krivenyshev (2008-09-05): # As per message from Carlos Alberto Fonseca Arauz (Nicaragua), # Argentina will start DST on Sunday October 19, 2008. # # http://www.worldtimezone.com/dst_news/dst_news_argentina03.html # http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish) # From Rodrigo Severo (2008-10-06): # Here is some info available at a Gentoo bug related to TZ on Argentina's DST: # ... # ------- Comment #1 from [jmdocile] 2008-10-06 16:28 0000 ------- # Hi, there is a problem with timezone-data-2008e and maybe with # timezone-data-2008f # Argentinian law [Number] 25.155 is no longer valid. # http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm # The new one is law [Number] 26.350 # http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm # So there is no summer time in Argentina for now. # From Mariano Absatz (2008-10-20): # Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST in Argentina # From 2008-10-19 until 2009-03-15 # http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01 # # Decree 1705/2008 excepting 12 Provinces from applying DST in the summer # 2008/2009: Catamarca, La Rioja, Mendoza, Salta, San Juan, San Luis, La # Pampa, Neuquén, Rio Negro, Chubut, Santa Cruz and Tierra del Fuego # http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01 # # Press release 235 dated Saturday October 18th, from the Government of the Province of Jujuy saying # it will not apply DST either (even when it was not included in Decree 1705/2008) # http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc # From fullinet (2009-10-18): # As announced in # http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356 # (an official .gob.ar) under title: "Sin Cambio de Hora" (english: "No hour change") # # "Por el momento, el Gobierno Nacional resolvió no modificar la hora # oficial, decisión que estaba en estudio para su implementación el # domingo 18 de octubre. Desde el Ministerio de Planificación se anunció # que la Argentina hoy, en estas condiciones meteorológicas, no necesita # la modificación del huso horario, ya que 2009 nos encuentra con # crecimiento en la producción y distribución energética." Rule Arg 2007 only - Dec 30 0:00 1:00 S Rule Arg 2008 2009 - Mar Sun>=15 0:00 0 - Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S # From Mariano Absatz (2004-05-21): # Today it was officially published that the Province of Mendoza is changing # its timezone this winter... starting tomorrow night.... # http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf # From Paul Eggert (2004-05-24): # It's Law No. 7,210. This change is due to a public power emergency, so for # now we'll assume it's for this year only. # # From Paul Eggert (2006-03-22): # Hora de verano para la Republica Argentina (2003-06-08) # # says that standard time in Argentina from 1894-10-31 # to 1920-05-01 was -4:16:48.25. Go with this more-precise value # over Shanks & Pottenger. # # From Mariano Absatz (2004-06-05): # These media articles from a major newspaper mostly cover the current state: # http://www.lanacion.com.ar/04/05/27/de_604825.asp # http://www.lanacion.com.ar/04/05/28/de_605203.asp # # The following eight (8) provinces pulled clocks back to UTC-04:00 at # midnight Monday May 31st. (that is, the night between 05/31 and 06/01). # Apparently, all nine provinces would go back to UTC-03:00 at the same # time in October 17th. # # Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz, # Tierra del Fuego, Tucumán. # # From Mariano Absatz (2004-06-14): # ... this weekend, the Province of Tucumán decided it'd go back to UTC-03:00 # yesterday midnight (that is, at 24:00 Saturday 12th), since the people's # annoyance with the change is much higher than the power savings obtained.... # # From Gwillim Law (2004-06-14): # http://www.lanacion.com.ar/04/06/10/de_609078.asp ... # "The time change in Tierra del Fuego was a conflicted decision from # the start. The government had decreed that the measure would take # effect on June 1, but a normative error forced the new time to begin # three days earlier, from a Saturday to a Sunday.... # Our understanding was that the change was originally scheduled to take place # on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other # provinces). Sunday was May 30, only two days earlier. So the article # contains a contradiction. I would give more credence to the Saturday/Sunday # date than the "three days earlier" phrase, and conclude that Tierra del # Fuego set its clocks back at 2004-05-30 00:00. # # From Steffen Thorsen (2004-10-05): # The previous law 7210 which changed the province of Mendoza's time zone # back in May have been modified slightly in a new law 7277, which set the # new end date to 2004-09-26 (original date was 2004-10-17). # http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf # # From Mariano Absatz (2004-10-05): # San Juan changed from UTC-03:00 to UTC-04:00 at midnight between # Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00 # at midnight between Saturday, July 24th and Sunday, July 25th.... # http://www.sanjuan.gov.ar/prensa/archivo/000329.html # http://www.sanjuan.gov.ar/prensa/archivo/000426.html # http://www.sanjuan.gov.ar/prensa/archivo/000441.html # From Alex Krivenyshev (2008-01-17): # Here are articles that Argentina Province San Luis is planning to end DST # as earlier as upcoming Monday January 21, 2008 or February 2008: # # Provincia argentina retrasa reloj y marca diferencia con resto del país # (Argentine Province delayed clock and mark difference with the rest of the # country) # http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel # # Es inminente que en San Luis atrasen una hora los relojes # (It is imminent in San Luis clocks one hour delay) # http://www.lagaceta.com.ar/nota/253414/Economia/Es-inminente-que-en-San-Luis-atrasen-una-hora-los-relojes.html # http://www.worldtimezone.net/dst_news/dst_news_argentina02.html # From Jesper Nørgaard Welen (2008-01-18): # The page of the San Luis provincial government # http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812 # confirms what Alex Krivenyshev has earlier sent to the tz # emailing list about that San Luis plans to return to standard # time much earlier than the rest of the country. It also # confirms that upon request the provinces San Juan and Mendoza # refused to follow San Luis in this change. # # The change is supposed to take place Monday the 21.st at 0:00 # hours. As far as I understand it if this goes ahead, we need # a new timezone for San Luis (although there are also documented # independent changes in the southamerica file of San Luis in # 1990 and 1991 which has not been confirmed). # From Jesper Nørgaard Welen (2008-01-25): # Unfortunately the below page has become defunct, about the San Luis # time change. Perhaps because it now is part of a group of pages "Most # important pages of 2008." # # You can use # http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834 # instead it seems. Or use "Buscador" from the main page of the San Luis # government, and fill in "huso" and click OK, and you will get 3 pages # from which the first one is identical to the above. # From Mariano Absatz (2008-01-28): # I can confirm that the Province of San Luis (and so far only that # province) decided to go back to UTC-3 effective midnight Jan 20th 2008 # (that is, Monday 21st at 0:00 is the time the clocks were delayed back # 1 hour), and they intend to keep UTC-3 as their timezone all year round # (that is, unless they change their mind any minute now). # # So we'll have to add yet another city to 'southamerica' (I think San # Luis city is the mos populated city in the Province, so it'd be # America/Argentina/San_Luis... of course I can't remember if San Luis's # history of particular changes goes along with Mendoza or San Juan :-( # (I only remember not being able to collect hard facts about San Luis # back in 2004, when these provinces changed to UTC-4 for a few days, I # mailed them personally and never got an answer). # From Paul Eggert (2008-06-30): # Unless otherwise specified, data are from Shanks & Pottenger through 1992, # from the IATA otherwise. As noted below, Shanks & Pottenger say that # America/Cordoba split into 6 subregions during 1991/1992, one of which # was America/San_Luis, but we haven't verified this yet so for now we'll # keep America/Cordoba a single region rather than splitting it into the # other 5 subregions. # From Mariano Absatz (2009-03-13): # Yesterday (with our usual 2-day notice) the Province of San Luis # decided that next Sunday instead of "staying" @@utc-03:00 they will go # to utc-04:00 until the second Saturday in October... # # The press release is at # http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102 # (I couldn't find the decree, but www.sanluis.gov.ar # is the official page for the Province Government.) # # There's also a note in only one of the major national papers ... # http://www.lanacion.com.ar/nota.asp?nota_id=1107912 # # The press release says [quick and dirty translation]: # ... announced that next Sunday, at 00:00, Puntanos (the San Luis # inhabitants) will have to turn back one hour their clocks # # Since then, San Luis will establish its own Province timezone. Thus, # during 2009, this timezone change will run from 00:00 the third Sunday # in March until 24:00 of the second Saturday in October. # From Mariano Absatz (2009-10-16): # ...the Province of San Luis is a case in itself. # # The Law at # http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276 # is ambiguous because establishes a calendar from the 2nd Sunday in # October at 0:00 thru the 2nd Saturday in March at 24:00 and the # complement of that starting on the 2nd Sunday of March at 0:00 and # ending on the 2nd Saturday of March at 24:00. # # This clearly breaks every time the 1st of March or October is a Sunday. # # IMHO, the "spirit of the Law" is to make the changes at 0:00 on the 2nd # Sunday of October and March. # # The problem is that the changes in the rest of the Provinces that did # change in 2007/2008, were made according to the Federal Law and Decrees # that did so on the 3rd Sunday of October and March. # # In fact, San Luis actually switched from UTC-4 to UTC-3 last Sunday # (October 11th) at 0:00. # # So I guess a new set of rules, besides "Arg", must be made and the last # America/Argentina/San_Luis entries should change to use these... # # I'm enclosing a patch that does what I say... regretfully, the San Luis # timezone must be called "WART/WARST" even when most of the time (like, # right now) WARST == ART... that is, since last Sunday, all the country # is using UTC-3, but in my patch, San Luis calls it "WARST" and the rest # of the country calls it "ART". # ... # From Alexander Krivenyshev (2010-04-09): # According to news reports from El Diario de la Republica Province San # Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time # after April 11, 2010 - will continue to have same time as rest of # Argentina (UTC-3) (no DST). # # Confirmaron la prórroga del huso horario de verano (Spanish) # http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9 # or (some English translation): # http://www.worldtimezone.com/dst_news/dst_news_argentina08.html # From Mariano Absatz (2010-04-12): # yes...I can confirm this...and given that San Luis keeps calling # UTC-03:00 "summer time", we should't just let San Luis go back to "Arg" # rules...San Luis is still using "Western ARgentina Time" and it got # stuck on Summer daylight savings time even though the summer is over. # From Paul Eggert (2013-09-05): # Perhaps San Luis operates on the legal fiction that it is at UTC-4 # with perpetual summer time, but ordinary usage typically seems to # just say it's at UTC-3; see, for example, # . # We've documented similar situations as being plain changes to # standard time, so let's do that here too. This does not change UTC # offsets, only tm_isdst and the time zone abbreviations. One minor # plus is that this silences a zic complaint that there's no POSIX TZ # setting for time stamps past 2038. # From Paul Eggert (2013-02-21): # Milne says Córdoba time was -4:16:48.2. Round to the nearest second. # Zone NAME GMTOFF RULES FORMAT [UNTIL] # # Buenos Aires (BA), Capital Federal (CF), Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May # Córdoba Mean Time -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 Arg AR%sT # # Córdoba (CB), Santa Fe (SF), Entre Ríos (ER), Corrientes (CN), Misiones (MN), # Chaco (CC), Formosa (FM), Santiago del Estero (SE) # # Shanks & Pottenger also make the following claims, which we haven't verified: # - Formosa switched to -3:00 on 1991-01-07. # - Misiones switched to -3:00 on 1990-12-29. # - Chaco switched to -3:00 on 1991-01-04. # - Santiago del Estero switched to -4:00 on 1991-04-01, # then to -3:00 on 1991-04-26. # Zone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 3 -4:00 - WART 1991 Oct 20 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 Arg AR%sT # # Salta (SA), La Pampa (LP), Neuquén (NQ), Rio Negro (RN) Zone America/Argentina/Salta -4:21:40 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 3 -4:00 - WART 1991 Oct 20 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART # # Tucumán (TM) Zone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 3 -4:00 - WART 1991 Oct 20 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 Jun 1 -4:00 - WART 2004 Jun 13 -3:00 Arg AR%sT # # La Rioja (LR) Zone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 1 -4:00 - WART 1991 May 7 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 Jun 1 -4:00 - WART 2004 Jun 20 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART # # San Juan (SJ) Zone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 1 -4:00 - WART 1991 May 7 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 May 31 -4:00 - WART 2004 Jul 25 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART # # Jujuy (JY) Zone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1990 Mar 4 -4:00 - WART 1990 Oct 28 -4:00 1:00 WARST 1991 Mar 17 -4:00 - WART 1991 Oct 6 -3:00 1:00 ARST 1992 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART # # Catamarca (CT), Chubut (CH) Zone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1991 Mar 3 -4:00 - WART 1991 Oct 20 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 Jun 1 -4:00 - WART 2004 Jun 20 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART # # Mendoza (MZ) Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1990 Mar 4 -4:00 - WART 1990 Oct 15 -4:00 1:00 WARST 1991 Mar 1 -4:00 - WART 1991 Oct 15 -4:00 1:00 WARST 1992 Mar 1 -4:00 - WART 1992 Oct 18 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 May 23 -4:00 - WART 2004 Sep 26 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART # # San Luis (SL) Rule SanLuis 2008 2009 - Mar Sun>=8 0:00 0 - Rule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 S Zone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1990 -3:00 1:00 ARST 1990 Mar 14 -4:00 - WART 1990 Oct 15 -4:00 1:00 WARST 1991 Mar 1 -4:00 - WART 1991 Jun 1 -3:00 - ART 1999 Oct 3 -4:00 1:00 WARST 2000 Mar 3 -3:00 - ART 2004 May 31 -4:00 - WART 2004 Jul 25 -3:00 Arg AR%sT 2008 Jan 21 -4:00 SanLuis WAR%sT 2009 Oct 11 -3:00 - ART # # Santa Cruz (SC) Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May # Córdoba Mean Time -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 Jun 1 -4:00 - WART 2004 Jun 20 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART # # Tierra del Fuego, Antártida e Islas del Atlántico Sur (TF) Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May # Córdoba Mean Time -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -3:00 - ART 2004 May 30 -4:00 - WART 2004 Jun 20 -3:00 Arg AR%sT 2008 Oct 18 -3:00 - ART # Aruba Link America/Curacao America/Aruba # Bolivia # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/La_Paz -4:32:36 - LMT 1890 -4:32:36 - CMT 1931 Oct 15 # Calamarca MT -4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST -4:00 - BOT # Bolivia Time # Brazil # From Paul Eggert (1993-11-18): # The mayor of Rio recently attempted to change the time zone rules # just in his city, in order to leave more summer time for the tourist trade. # The rule change lasted only part of the day; # the federal government refused to follow the city's rules, and business # was in a chaos, so the mayor backed down that afternoon. # From IATA SSIM (1996-02): # _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS), # Santa Catarina (SC), Paraná (PR), São Paulo (SP), Rio de Janeiro (RJ), # Espírito Santo (ES), Minas Gerais (MG), Bahia (BA), Goiás (GO), # Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL]. # [The last three states are new to this issue of the IATA SSIM.] # From Gwillim Law (1996-10-07): # Geography, history (Tocantins was part of Goiás until 1989), and other # sources of time zone information lead me to believe that AL, SE, and TO were # always in BR1, and so the only change was whether or not they observed DST.... # The earliest issue of the SSIM I have is 2/91. Each issue from then until # 9/95 says that DST is observed only in the ten states I quoted from 9/95, # along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2 # (UTC-4).... The other two time zones given for Brazil are BR3, which is # UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is # UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's # become part of the state of Pernambuco). The boundary between BR1 and BR2 # has never been clearly stated. They've simply been called East and West. # However, some conclusions can be drawn from another IATA manual: the Airline # Coding Directory, which lists close to 400 airports in Brazil. For each # airport it gives a time zone which is coded to the SSIM. From that # information, I'm led to conclude that the states of Amapá (AP), Ceará (CE), # Maranhão (MA), Paraíba (PR), Pernambuco (PE), Piauí (PI), and Rio Grande do # Norte (RN), and the eastern part of Pará (PA) are all in BR1 without DST. # From Marcos Tadeu (1998-09-27): # Brazilian official page # From Jesper Nørgaard (2000-11-03): # [For an official list of which regions in Brazil use which time zones, see:] # http://pcdsh01.on.br/Fusbr.htm # http://pcdsh01.on.br/Fusbrhv.htm # From Celso Doria via David Madeo (2002-10-09): # The reason for the delay this year has to do with elections in Brazil. # # Unlike in the United States, elections in Brazil are 100% computerized and # the results are known almost immediately. Yesterday, it was the first # round of the elections when 115 million Brazilians voted for President, # Governor, Senators, Federal Deputies, and State Deputies. Nobody is # counting (or re-counting) votes anymore and we know there will be a second # round for the Presidency and also for some Governors. The 2nd round will # take place on October 27th. # # The reason why the DST will only begin November 3rd is that the thousands # of electoral machines used cannot have their time changed, and since the # Constitution says the elections must begin at 8:00 AM and end at 5:00 PM, # the Government decided to postpone DST, instead of changing the Constitution # (maybe, for the next elections, it will be possible to change the clock)... # From Rodrigo Severo (2004-10-04): # It's just the biannual change made necessary by the much hyped, supposedly # modern Brazilian eletronic voting machines which, apparently, can't deal # with a time change between the first and the second rounds of the elections. # From Steffen Thorsen (2007-09-20): # Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00: # http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975 # From Paul Schulze (2008-06-24): # ...by law number 11.662 of April 24, 2008 (published in the "Diario # Oficial da União"...) in Brazil there are changes in the timezones, # effective today (00:00am at June 24, 2008) as follows: # # a) The timezone UTC+5 is e[x]tinguished, with all the Acre state and the # part of the Amazonas state that had this timezone now being put to the # timezone UTC+4 # b) The whole Pará state now is put at timezone UTC+3, instead of just # part of it, as was before. # # This change follows a proposal of senator Tiao Viana of Acre state, that # proposed it due to concerns about open television channels displaying # programs inappropriate to youths in the states that had the timezone # UTC+5 too early in the night. In the occasion, some more corrections # were proposed, trying to unify the timezones of any given state. This # change modifies timezone rules defined in decree 2.784 of 18 June, # 1913. # From Rodrigo Severo (2008-06-24): # Just correcting the URL: # https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008 # # As a result of the above Decree I believe the America/Rio_Branco # timezone shall be modified from UTC-5 to UTC-4 and a new timezone shall # be created to represent the...west side of the Pará State. I # suggest this new timezone be called Santarem as the most # important/populated city in the affected area. # # This new timezone would be the same as the Rio_Branco timezone up to # the 2008/06/24 change which would be to UTC-3 instead of UTC-4. # From Alex Krivenyshev (2008-06-24): # This is a quick reference page for New and Old Brazil Time Zones map. # http://www.worldtimezone.com/brazil-time-new-old.php # # - 4 time zones replaced by 3 time zones - eliminating time zone UTC-05 # (state Acre and the part of the Amazonas will be UTC/GMT-04) - western # part of Par state is moving to one timezone UTC-03 (from UTC-04). # From Paul Eggert (2002-10-10): # The official decrees referenced below are mostly taken from # Decretos sobre o Horário de Verão no Brasil # . # From Steffen Thorsen (2008-08-29): # As announced by the government and many newspapers in Brazil late # yesterday, Brazil will start DST on 2008-10-19 (need to change rule) and # it will end on 2009-02-15 (current rule for Brazil is fine). Based on # past years experience with the elections, there was a good chance that # the start was postponed to November, but it did not happen this year. # # It has not yet been posted to http://pcdsh01.on.br/DecHV.html # # An official page about it: # http://www.mme.gov.br/site/news/detail.do?newsId=16722 # Note that this link does not always work directly, but must be accessed # by going to # http://www.mme.gov.br/first # # One example link that works directly: # http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54 # (Portuguese) # # We have a written a short article about it as well: # http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html # # From Alexander Krivenyshev (2011-10-04): # State Bahia will return to Daylight savings time this year after 8 years off. # The announcement was made by Governor Jaques Wagner in an interview to a # television station in Salvador. # In Portuguese: # http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html # http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html # From Guilherme Bernardes Rodrigues (2011-10-07): # There is news in the media, however there is still no decree about it. # I just send a e-mail to Zulmira Brandao at http://pcdsh01.on.br/ the # official agency about time in Brazil, and she confirmed that the old rule is # still in force. # From Guilherme Bernardes Rodrigues (2011-10-14) # It's official, the President signed a decree that includes Bahia in summer # time. # [ and in a second message (same day): ] # I found the decree. # # DECRETO No- 7.584, DE 13 DE OUTUBRO DE 2011 # Link : # http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6 # From Kelley Cook (2012-10-16): # The governor of state of Bahia in Brazil announced on Thursday that # due to public pressure, he is reversing the DST policy they implemented # last year and will not be going to Summer Time on October 21st.... # http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-horario-de-verao-na-bahia # From Rodrigo Severo (2012-10-16): # Tocantins state will have DST. # http://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html # From Steffen Thorsen (2013-09-20): # Tocantins in Brazil is very likely not to observe DST from October.... # http://conexaoto.com.br/2013/09/18/ministerio-confirma-que-tocantins-esta-fora-do-horario-de-verao-em-2013-mas-falta-publicacao-de-decreto # We will keep this article updated when this is confirmed: # http://www.timeanddate.com/news/time/brazil-starts-dst-2013.html # From Steffen Thorsen (2013-10-17): # http://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html # Senator Jorge Viana announced that Acre will change time zone on November 10. # He did not specify the time of the change, nor if western parts of Amazonas # will change as well. # # From Paul Eggert (2013-10-17): # For now, assume western Amazonas will change as well. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S # Decree 20,466 (1931-10-01) # Decree 21,896 (1932-01-10) Rule Brazil 1931 only - Oct 3 11:00 1:00 S Rule Brazil 1932 1933 - Apr 1 0:00 0 - Rule Brazil 1932 only - Oct 3 0:00 1:00 S # Decree 23,195 (1933-10-10) # revoked DST. # Decree 27,496 (1949-11-24) # Decree 27,998 (1950-04-13) Rule Brazil 1949 1952 - Dec 1 0:00 1:00 S Rule Brazil 1950 only - Apr 16 1:00 0 - Rule Brazil 1951 1952 - Apr 1 0:00 0 - # Decree 32,308 (1953-02-24) Rule Brazil 1953 only - Mar 1 0:00 0 - # Decree 34,724 (1953-11-30) # revoked DST. # Decree 52,700 (1963-10-18) # established DST from 1963-10-23 00:00 to 1964-02-29 00:00 # in SP, RJ, GB, MG, ES, due to the prolongation of the drought. # Decree 53,071 (1963-12-03) # extended the above decree to all of the national territory on 12-09. Rule Brazil 1963 only - Dec 9 0:00 1:00 S # Decree 53,604 (1964-02-25) # extended summer time by one day to 1964-03-01 00:00 (start of school). Rule Brazil 1964 only - Mar 1 0:00 0 - # Decree 55,639 (1965-01-27) Rule Brazil 1965 only - Jan 31 0:00 1:00 S Rule Brazil 1965 only - Mar 31 0:00 0 - # Decree 57,303 (1965-11-22) Rule Brazil 1965 only - Dec 1 0:00 1:00 S # Decree 57,843 (1966-02-18) Rule Brazil 1966 1968 - Mar 1 0:00 0 - Rule Brazil 1966 1967 - Nov 1 0:00 1:00 S # Decree 63,429 (1968-10-15) # revoked DST. # Decree 91,698 (1985-09-27) Rule Brazil 1985 only - Nov 2 0:00 1:00 S # Decree 92,310 (1986-01-21) # Decree 92,463 (1986-03-13) Rule Brazil 1986 only - Mar 15 0:00 0 - # Decree 93,316 (1986-10-01) Rule Brazil 1986 only - Oct 25 0:00 1:00 S Rule Brazil 1987 only - Feb 14 0:00 0 - # Decree 94,922 (1987-09-22) Rule Brazil 1987 only - Oct 25 0:00 1:00 S Rule Brazil 1988 only - Feb 7 0:00 0 - # Decree 96,676 (1988-09-12) # except for the states of AC, AM, PA, RR, RO, and AP (then a territory) Rule Brazil 1988 only - Oct 16 0:00 1:00 S Rule Brazil 1989 only - Jan 29 0:00 0 - # Decree 98,077 (1989-08-21) # with the same exceptions Rule Brazil 1989 only - Oct 15 0:00 1:00 S Rule Brazil 1990 only - Feb 11 0:00 0 - # Decree 99,530 (1990-09-17) # adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF. # Decree 99,629 (1990-10-19) adds BA, MT. Rule Brazil 1990 only - Oct 21 0:00 1:00 S Rule Brazil 1991 only - Feb 17 0:00 0 - # Unnumbered decree (1991-09-25) # adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF. Rule Brazil 1991 only - Oct 20 0:00 1:00 S Rule Brazil 1992 only - Feb 9 0:00 0 - # Unnumbered decree (1992-10-16) # adopted by same states. Rule Brazil 1992 only - Oct 25 0:00 1:00 S Rule Brazil 1993 only - Jan 31 0:00 0 - # Decree 942 (1993-09-28) # adopted by same states, plus AM. # Decree 1,252 (1994-09-22; # web page corrected 2004-01-07) adopted by same states, minus AM. # Decree 1,636 (1995-09-14) # adopted by same states, plus MT and TO. # Decree 1,674 (1995-10-13) # adds AL, SE. Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 - Rule Brazil 1996 only - Feb 11 0:00 0 - # Decree 2,000 (1996-09-04) # adopted by same states, minus AL, SE. Rule Brazil 1996 only - Oct 6 0:00 1:00 S Rule Brazil 1997 only - Feb 16 0:00 0 - # From Daniel C. Sobral (1998-02-12): # In 1997, the DS began on October 6. The stated reason was that # because international television networks ignored Brazil's policy on DS, # they bought the wrong times on satellite for coverage of Pope's visit. # This year, the ending date of DS was postponed to March 1 # to help dealing with the shortages of electric power. # # Decree 2,317 (1997-09-04), adopted by same states. Rule Brazil 1997 only - Oct 6 0:00 1:00 S # Decree 2,495 # (1998-02-10) Rule Brazil 1998 only - Mar 1 0:00 0 - # Decree 2,780 (1998-09-11) # adopted by the same states as before. Rule Brazil 1998 only - Oct 11 0:00 1:00 S Rule Brazil 1999 only - Feb 21 0:00 0 - # Decree 3,150 # (1999-08-23) adopted by same states. # Decree 3,188 (1999-09-30) # adds SE, AL, PB, PE, RN, CE, PI, MA and RR. Rule Brazil 1999 only - Oct 3 0:00 1:00 S Rule Brazil 2000 only - Feb 27 0:00 0 - # Decree 3,592 (2000-09-06) # adopted by the same states as before. # Decree 3,630 (2000-10-13) # repeals DST in PE and RR, effective 2000-10-15 00:00. # Decree 3,632 (2000-10-17) # repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00. # Decree 3,916 # (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE. Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S Rule Brazil 2001 2006 - Feb Sun>=15 0:00 0 - # Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE. # 4,399 Rule Brazil 2002 only - Nov 3 0:00 1:00 S # Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO. # 4,844 Rule Brazil 2003 only - Oct 19 0:00 1:00 S # Decree 5,223 (2004-10-01) reestablishes DST in MT. # 5,223 Rule Brazil 2004 only - Nov 2 0:00 1:00 S # Decree 5,539 (2005-09-19), # adopted by the same states as before. Rule Brazil 2005 only - Oct 16 0:00 1:00 S # Decree 5,920 (2006-10-03), # adopted by the same states as before. Rule Brazil 2006 only - Nov 5 0:00 1:00 S Rule Brazil 2007 only - Feb 25 0:00 0 - # Decree 6,212 (2007-09-26), # adopted by the same states as before. Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 S # From Frederico A. C. Neves (2008-09-10): # According to this decree # http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm # [t]he DST period in Brazil now on will be from the 3rd Oct Sunday to the # 3rd Feb Sunday. There is an exception on the return date when this is # the Carnival Sunday then the return date will be the next Sunday... Rule Brazil 2008 max - Oct Sun>=15 0:00 1:00 S Rule Brazil 2008 2011 - Feb Sun>=15 0:00 0 - Rule Brazil 2012 only - Feb Sun>=22 0:00 0 - Rule Brazil 2013 2014 - Feb Sun>=15 0:00 0 - Rule Brazil 2015 only - Feb Sun>=22 0:00 0 - Rule Brazil 2016 2022 - Feb Sun>=15 0:00 0 - Rule Brazil 2023 only - Feb Sun>=22 0:00 0 - Rule Brazil 2024 2025 - Feb Sun>=15 0:00 0 - Rule Brazil 2026 only - Feb Sun>=22 0:00 0 - Rule Brazil 2027 2033 - Feb Sun>=15 0:00 0 - Rule Brazil 2034 only - Feb Sun>=22 0:00 0 - Rule Brazil 2035 2036 - Feb Sun>=15 0:00 0 - Rule Brazil 2037 only - Feb Sun>=22 0:00 0 - # From Arthur David Olson (2008-09-29): # The next is wrong in some years but is better than nothing. Rule Brazil 2038 max - Feb Sun>=15 0:00 0 - # The latest ruleset listed above says that the following states observe DST: # DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP. # Zone NAME GMTOFF RULES FORMAT [UNTIL] # # Fernando de Noronha (administratively part of PE) Zone America/Noronha -2:09:40 - LMT 1914 -2:00 Brazil FN%sT 1990 Sep 17 -2:00 - FNT 1999 Sep 30 -2:00 Brazil FN%sT 2000 Oct 15 -2:00 - FNT 2001 Sep 13 -2:00 Brazil FN%sT 2002 Oct 1 -2:00 - FNT # Other Atlantic islands have no permanent settlement. # These include Trindade and Martim Vaz (administratively part of ES), # Rocas Atoll (RN), and the St Peter and St Paul Archipelago (PE). # Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01; # it also included the Penedos. # # Amapá (AP), east Pará (PA) # East Pará includes Belém, Marabá, Serra Norte, and São Félix do Xingu. # The division between east and west Pará is the river Xingu. # In the north a very small part from the river Javary (now Jari I guess, # the border with Amapá) to the Amazon, then to the Xingu. Zone America/Belem -3:13:56 - LMT 1914 -3:00 Brazil BR%sT 1988 Sep 12 -3:00 - BRT # # west Pará (PA) # West Pará includes Altamira, Óbidos, Prainha, Oriximiná, and Santarém. Zone America/Santarem -3:38:48 - LMT 1914 -4:00 Brazil AM%sT 1988 Sep 12 -4:00 - AMT 2008 Jun 24 00:00 -3:00 - BRT # # Maranhão (MA), Piauí (PI), Ceará (CE), Rio Grande do Norte (RN), # Paraíba (PB) Zone America/Fortaleza -2:34:00 - LMT 1914 -3:00 Brazil BR%sT 1990 Sep 17 -3:00 - BRT 1999 Sep 30 -3:00 Brazil BR%sT 2000 Oct 22 -3:00 - BRT 2001 Sep 13 -3:00 Brazil BR%sT 2002 Oct 1 -3:00 - BRT # # Pernambuco (PE) (except Atlantic islands) Zone America/Recife -2:19:36 - LMT 1914 -3:00 Brazil BR%sT 1990 Sep 17 -3:00 - BRT 1999 Sep 30 -3:00 Brazil BR%sT 2000 Oct 15 -3:00 - BRT 2001 Sep 13 -3:00 Brazil BR%sT 2002 Oct 1 -3:00 - BRT # # Tocantins (TO) Zone America/Araguaina -3:12:48 - LMT 1914 -3:00 Brazil BR%sT 1990 Sep 17 -3:00 - BRT 1995 Sep 14 -3:00 Brazil BR%sT 2003 Sep 24 -3:00 - BRT 2012 Oct 21 -3:00 Brazil BR%sT 2013 Sep -3:00 - BRT # # Alagoas (AL), Sergipe (SE) Zone America/Maceio -2:22:52 - LMT 1914 -3:00 Brazil BR%sT 1990 Sep 17 -3:00 - BRT 1995 Oct 13 -3:00 Brazil BR%sT 1996 Sep 4 -3:00 - BRT 1999 Sep 30 -3:00 Brazil BR%sT 2000 Oct 22 -3:00 - BRT 2001 Sep 13 -3:00 Brazil BR%sT 2002 Oct 1 -3:00 - BRT # # Bahia (BA) # There are too many Salvadors elsewhere, so use America/Bahia instead # of America/Salvador. Zone America/Bahia -2:34:04 - LMT 1914 -3:00 Brazil BR%sT 2003 Sep 24 -3:00 - BRT 2011 Oct 16 -3:00 Brazil BR%sT 2012 Oct 21 -3:00 - BRT # # Goiás (GO), Distrito Federal (DF), Minas Gerais (MG), # Espírito Santo (ES), Rio de Janeiro (RJ), São Paulo (SP), Paraná (PR), # Santa Catarina (SC), Rio Grande do Sul (RS) Zone America/Sao_Paulo -3:06:28 - LMT 1914 -3:00 Brazil BR%sT 1963 Oct 23 00:00 -3:00 1:00 BRST 1964 -3:00 Brazil BR%sT # # Mato Grosso do Sul (MS) Zone America/Campo_Grande -3:38:28 - LMT 1914 -4:00 Brazil AM%sT # # Mato Grosso (MT) Zone America/Cuiaba -3:44:20 - LMT 1914 -4:00 Brazil AM%sT 2003 Sep 24 -4:00 - AMT 2004 Oct 1 -4:00 Brazil AM%sT # # Rondônia (RO) Zone America/Porto_Velho -4:15:36 - LMT 1914 -4:00 Brazil AM%sT 1988 Sep 12 -4:00 - AMT # # Roraima (RR) Zone America/Boa_Vista -4:02:40 - LMT 1914 -4:00 Brazil AM%sT 1988 Sep 12 -4:00 - AMT 1999 Sep 30 -4:00 Brazil AM%sT 2000 Oct 15 -4:00 - AMT # # east Amazonas (AM): Boca do Acre, Jutaí, Manaus, Floriano Peixoto # The great circle line from Tabatinga to Porto Acre divides # east from west Amazonas. Zone America/Manaus -4:00:04 - LMT 1914 -4:00 Brazil AM%sT 1988 Sep 12 -4:00 - AMT 1993 Sep 28 -4:00 Brazil AM%sT 1994 Sep 22 -4:00 - AMT # # west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant, # Eirunepé, Envira, Ipixuna Zone America/Eirunepe -4:39:28 - LMT 1914 -5:00 Brazil AC%sT 1988 Sep 12 -5:00 - ACT 1993 Sep 28 -5:00 Brazil AC%sT 1994 Sep 22 -5:00 - ACT 2008 Jun 24 00:00 -4:00 - AMT 2013 Nov 10 -5:00 - ACT # # Acre (AC) Zone America/Rio_Branco -4:31:12 - LMT 1914 -5:00 Brazil AC%sT 1988 Sep 12 -5:00 - ACT 2008 Jun 24 00:00 -4:00 - AMT 2013 Nov 10 -5:00 - ACT # Chile # From Eduardo Krell (1995-10-19): # The law says to switch to DST at midnight [24:00] on the second SATURDAY # of October.... The law is the same for March and October. # (1998-09-29): # Because of the drought this year, the government decided to go into # DST earlier (saturday 9/26 at 24:00). This is a one-time change only ... # (unless there's another dry season next year, I guess). # From Julio I. Pacheco Troncoso (1999-03-18): # Because of the same drought, the government decided to end DST later, # on April 3, (one-time change). # From Oscar van Vlijmen (2006-10-08): # http://www.horaoficial.cl/cambio.htm # From Jesper Nørgaard Welen (2006-10-08): # I think that there are some obvious mistakes in the suggested link # from Oscar van Vlijmen,... for instance entry 66 says that GMT-4 # ended 1990-09-12 while entry 67 only begins GMT-3 at 1990-09-15 # (they should have been 1990-09-15 and 1990-09-16 respectively), but # anyhow it clears up some doubts too. # From Paul Eggert (2006-12-27): # The following data for Chile and America/Santiago are from # (2006-09-20), transcribed by # Jesper Nørgaard Welen. The data for Pacific/Easter are from Shanks # & Pottenger, except with DST transitions after 1932 cloned from # America/Santiago. The pre-1980 Pacific/Easter data are dubious, # but we have no other source. # From Germán Poo-Caamaño (2008-03-03): # Due to drought, Chile extends Daylight Time in three weeks. This # is one-time change (Saturday 3/29 at 24:00 for America/Santiago # and Saturday 3/29 at 22:00 for Pacific/Easter) # The Supreme Decree is located at # http://www.shoa.cl/servicios/supremo316.pdf # and the instructions for 2008 are located in: # http://www.horaoficial.cl/cambio.htm # From José Miguel Garrido (2008-03-05): # ... # You could see the announces of the change on # http://www.shoa.cl/noticias/2008/04hora/hora.htm # From Angel Chiang (2010-03-04): # Subject: DST in Chile exceptionally extended to 3 April due to earthquake # http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098 # (in Spanish, last paragraph). # # This is breaking news. There should be more information available later. # From Arthur Daivd Olson (2010-03-06): # Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch. # From Glenn Eychaner (2011-03-02): [geychaner@@mac.com] # It appears that the Chilean government has decided to postpone the # change from summer time to winter time again, by three weeks to April # 2nd: # http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia=467651 # # This is not yet reflected in the official "cambio de hora" site, but # probably will be soon: # http://www.horaoficial.cl/cambio.htm # From Arthur David Olson (2011-03-02): # The emol.com article mentions a water shortage as the cause of the # postponement, which may mean that it's not a permanent change. # From Glenn Eychaner (2011-03-28): # The article: # http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E} # # In English: # Chile's clocks will go back an hour this year on the 7th of May instead # of this Saturday. They will go forward again the 3rd Saturday in # August, not in October as they have since 1968. This is a pilot plan # which will be reevaluated in 2012. # From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23): # As stated in the website of the Chilean Energy Ministry # http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html # The Chilean Government has decided to postpone the entrance into winter time # (to leave DST) from March 11 2012 to April 28th 2012. The decision has not # been yet formalized but it will within the next days. # Quote from the website communication: # # 6. For the year 2012, the dates of entry into winter time will be as follows: # a. Saturday April 28, 2012, clocks should go back 60 minutes; that is, at # 23:59:59, instead of passing to 0:00, the time should be adjusted to be 23:00 # of the same day. # b. Saturday, September 1, 2012, clocks should go forward 60 minutes; that is, # at 23:59:59, instead of passing to 0:00, the time should be adjusted to be # 01:00 on September 2. # From Steffen Thorsen (2013-02-15): # According to several news sources, Chile has extended DST this year, # they will end DST later and start DST earlier than planned. They # hope to save energy. The new end date is 2013-04-28 00:00 and new # start date is 2013-09-08 00:00.... # http://www.gob.cl/informa/2013/02/15/gobierno-anuncia-fechas-de-cambio-de-hora-para-el-ano-2013.htm # From José Miguel Garrido (2014-02-19): # Today appeared in the Diario Oficial a decree amending the time change # dates to 2014. # DST End: last Saturday of April 2014 (Sun 27 Apr 2014 03:00 UTC) # DST Start: first Saturday of September 2014 (Sun 07 Sep 2014 04:00 UTC) # http://www.diariooficial.interior.gob.cl//media/2014/02/19/do-20140219.pdf # NOTE: ChileAQ rules for Antarctic bases are stored separately in the # 'antarctica' file. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Chile 1927 1932 - Sep 1 0:00 1:00 S Rule Chile 1928 1932 - Apr 1 0:00 0 - Rule Chile 1942 only - Jun 1 4:00u 0 - Rule Chile 1942 only - Aug 1 5:00u 1:00 S Rule Chile 1946 only - Jul 15 4:00u 1:00 S Rule Chile 1946 only - Sep 1 3:00u 0:00 - Rule Chile 1947 only - Apr 1 4:00u 0 - Rule Chile 1968 only - Nov 3 4:00u 1:00 S Rule Chile 1969 only - Mar 30 3:00u 0 - Rule Chile 1969 only - Nov 23 4:00u 1:00 S Rule Chile 1970 only - Mar 29 3:00u 0 - Rule Chile 1971 only - Mar 14 3:00u 0 - Rule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 S Rule Chile 1972 1986 - Mar Sun>=9 3:00u 0 - Rule Chile 1973 only - Sep 30 4:00u 1:00 S Rule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S Rule Chile 1987 only - Apr 12 3:00u 0 - Rule Chile 1988 1989 - Mar Sun>=9 3:00u 0 - Rule Chile 1988 only - Oct Sun>=1 4:00u 1:00 S Rule Chile 1989 only - Oct Sun>=9 4:00u 1:00 S Rule Chile 1990 only - Mar 18 3:00u 0 - Rule Chile 1990 only - Sep 16 4:00u 1:00 S Rule Chile 1991 1996 - Mar Sun>=9 3:00u 0 - Rule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S Rule Chile 1997 only - Mar 30 3:00u 0 - Rule Chile 1998 only - Mar Sun>=9 3:00u 0 - Rule Chile 1998 only - Sep 27 4:00u 1:00 S Rule Chile 1999 only - Apr 4 3:00u 0 - Rule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 S Rule Chile 2000 2007 - Mar Sun>=9 3:00u 0 - # N.B.: the end of March 29 in Chile is March 30 in Universal time, # which is used below in specifying the transition. Rule Chile 2008 only - Mar 30 3:00u 0 - Rule Chile 2009 only - Mar Sun>=9 3:00u 0 - Rule Chile 2010 only - Apr Sun>=1 3:00u 0 - Rule Chile 2011 only - May Sun>=2 3:00u 0 - Rule Chile 2011 only - Aug Sun>=16 4:00u 1:00 S Rule Chile 2012 max - Apr Sun>=23 3:00u 0 - Rule Chile 2012 max - Sep Sun>=2 4:00u 1:00 S # IATA SSIM anomalies: (1992-02) says 1992-03-14; # (1996-09) says 1998-03-08. Ignore these. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Santiago -4:42:46 - LMT 1890 -4:42:46 - SMT 1910 # Santiago Mean Time -5:00 - CLT 1916 Jul 1 # Chile Time -4:42:46 - SMT 1918 Sep 1 # Santiago Mean Time -4:00 - CLT 1919 Jul 1 # Chile Time -4:42:46 - SMT 1927 Sep 1 # Santiago Mean Time -5:00 Chile CL%sT 1947 May 22 # Chile Time -4:00 Chile CL%sT Zone Pacific/Easter -7:17:44 - LMT 1890 -7:17:28 - EMT 1932 Sep # Easter Mean Time -7:00 Chile EAS%sT 1982 Mar 13 21:00 # Easter I Time -6:00 Chile EAS%sT # # Salas y Gómez Island is uninhabited. # Other Chilean locations, including Juan Fernández Is, Desventuradas Is, # and Antarctic bases, are like America/Santiago. # Colombia # Milne gives 4:56:16.4 for Bogotá time in 1899; round to nearest. He writes, # "A variation of fifteen minutes in the public clocks of Bogota is not rare." # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule CO 1992 only - May 3 0:00 1:00 S Rule CO 1993 only - Apr 4 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Bogota -4:56:16 - LMT 1884 Mar 13 -4:56:16 - BMT 1914 Nov 23 # Bogotá Mean Time -5:00 CO CO%sT # Colombia Time # Malpelo, Providencia, San Andres # no information; probably like America/Bogota # Curaçao # Milne gives 4:35:46.9 for Curaçao mean time; round to nearest. # # From Paul Eggert (2006-03-22): # Shanks & Pottenger say that The Bottom and Philipsburg have been at # -4:00 since standard time was introduced on 1912-03-02; and that # Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from # 1912-02-02 to 1965-01-01. The former is dubious, since S&P also say # Saba Island has been like Curaçao. # This all predates our 1970 cutoff, though. # # By July 2007 Curaçao and St Maarten are planned to become # associated states within the Netherlands, much like Aruba; # Bonaire, Saba and St Eustatius would become directly part of the # Netherlands as Kingdom Islands. This won't affect their time zones # though, as far as we know. # # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad -4:30 - ANT 1965 # Netherlands Antilles Time -4:00 - AST # From Arthur David Olson (2011-06-15): # use links for places with new iso3166 codes. # The name "Lower Prince's Quarter" is both longer than fourteen characters # and contains an apostrophe; use "Lower_Princes" below. Link America/Curacao America/Lower_Princes # Sint Maarten Link America/Curacao America/Kralendijk # Caribbean Netherlands # Ecuador # # Milne says the Central and South American Telegraph Company used -5:24:15. # # From Paul Eggert (2007-03-04): # Apparently Ecuador had a failed experiment with DST in 1992. # (2007-02-27) and # (2006-11-06) both # talk about "hora Sixto". Leave this alone for now, as we have no data. # # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Guayaquil -5:19:20 - LMT 1890 -5:14:00 - QMT 1931 # Quito Mean Time -5:00 - ECT # Ecuador Time Zone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno -5:00 - ECT 1986 -6:00 - GALT # Galápagos Time # Falklands # From Paul Eggert (2006-03-22): # Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except # the IATA gives 1996-09-08. Go with Shanks & Pottenger. # From Falkland Islands Government Office, London (2001-01-22) # via Jesper Nørgaard: # ... the clocks revert back to Local Mean Time at 2 am on Sunday 15 # April 2001 and advance one hour to summer time at 2 am on Sunday 2 # September. It is anticipated that the clocks will revert back at 2 # am on Sunday 21 April 2002 and advance to summer time at 2 am on # Sunday 1 September. # From Rives McDow (2001-02-13): # # I have communicated several times with people there, and the last # time I had communications that was helpful was in 1998. Here is # what was said then: # # "The general rule was that Stanley used daylight saving and the Camp # did not. However for various reasons many people in the Camp have # started to use daylight saving (known locally as 'Stanley Time') # There is no rule as to who uses daylight saving - it is a matter of # personal choice and so it is impossible to draw a map showing who # uses it and who does not. Any list would be out of date as soon as # it was produced. This year daylight saving ended on April 18/19th # and started again on September 12/13th. I do not know what the rule # is, but can find out if you like. We do not change at the same time # as UK or Chile." # # I did have in my notes that the rule was "Second Saturday in Sep at # 0:00 until third Saturday in Apr at 0:00". I think that this does # not agree in some cases with Shanks; is this true? # # Also, there is no mention in the list that some areas in the # Falklands do not use DST. I have found in my communications there # that these areas are on the western half of East Falkland and all of # West Falkland. Stanley is the only place that consistently observes # DST. Again, as in other places in the world, the farmers don't like # it. West Falkland is almost entirely sheep farmers. # # I know one lady there that keeps a list of which farm keeps DST and # which doesn't each year. She runs a shop in Stanley, and says that # the list changes each year. She uses it to communicate to her # customers, catching them when they are home for lunch or dinner. # From Paul Eggert (2001-03-05): # For now, we'll just record the time in Stanley, since we have no # better info. # From Steffen Thorsen (2011-04-01): # The Falkland Islands will not turn back clocks this winter, but stay on # daylight saving time. # # One source: # http://www.falklandnews.com/public/story.cfm?get=5914&source=3 # # We have gotten this confirmed by a clerk of the legislative assembly: # Normally the clocks revert to Local Mean Time (UTC/GMT -4 hours) on the # third Sunday of April at 0200hrs and advance to Summer Time (UTC/GMT -3 # hours) on the first Sunday of September at 0200hrs. # # IMPORTANT NOTE: During 2011, on a trial basis, the Falkland Islands # will not revert to local mean time, but clocks will remain on Summer # time (UTC/GMT - 3 hours) throughout the whole of 2011. Any long term # change to local time following the trial period will be notified. # # From Andrew Newman (2012-02-24) # A letter from Justin McPhee, Chief Executive, # Cable & Wireless Falkland Islands (dated 2012-02-22) # states... # The current Atlantic/Stanley entry under South America expects the # clocks to go back to standard Falklands Time (FKT) on the 15th April. # The database entry states that in 2011 Stanley was staying on fixed # summer time on a trial basis only. FIG need to contact IANA and/or # the maintainers of the database to inform them we're adopting # the same policy this year and suggest recommendations for future years. # # For now we will assume permanent summer time for the Falklands # until advised differently (to apply for 2012 and beyond, after the 2011 # experiment was apparently successful.) # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Falk 1937 1938 - Sep lastSun 0:00 1:00 S Rule Falk 1938 1942 - Mar Sun>=19 0:00 0 - Rule Falk 1939 only - Oct 1 0:00 1:00 S Rule Falk 1940 1942 - Sep lastSun 0:00 1:00 S Rule Falk 1943 only - Jan 1 0:00 0 - Rule Falk 1983 only - Sep lastSun 0:00 1:00 S Rule Falk 1984 1985 - Apr lastSun 0:00 0 - Rule Falk 1984 only - Sep 16 0:00 1:00 S Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 S Rule Falk 1986 2000 - Apr Sun>=16 0:00 0 - Rule Falk 2001 2010 - Apr Sun>=15 2:00 0 - Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Atlantic/Stanley -3:51:24 - LMT 1890 -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time -4:00 Falk FK%sT 1983 May # Falkland Is Time -3:00 Falk FK%sT 1985 Sep 15 -4:00 Falk FK%sT 2010 Sep 5 02:00 -3:00 - FKST # French Guiana # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Cayenne -3:29:20 - LMT 1911 Jul -4:00 - GFT 1967 Oct # French Guiana Time -3:00 - GFT # Guyana # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown -3:45 - GBGT 1966 May 26 # Br Guiana Time -3:45 - GYT 1975 Jul 31 # Guyana Time -3:00 - GYT 1991 # IATA SSIM (1996-06) says -4:00. Assume a 1991 switch. -4:00 - GYT # Paraguay # # From Paul Eggert (2006-03-22): # Shanks & Pottenger say that spring transitions are 01:00 -> 02:00, # and autumn transitions are 00:00 -> 23:00. Go with pre-1999 # editions of Shanks, and with the IATA, who say transitions occur at 00:00. # # From Waldemar Villamayor-Venialbo (2013-09-20): # No time of the day is established for the adjustment, so people normally # adjust their clocks at 0 hour of the given dates. # # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Para 1975 1988 - Oct 1 0:00 1:00 S Rule Para 1975 1978 - Mar 1 0:00 0 - Rule Para 1979 1991 - Apr 1 0:00 0 - Rule Para 1989 only - Oct 22 0:00 1:00 S Rule Para 1990 only - Oct 1 0:00 1:00 S Rule Para 1991 only - Oct 6 0:00 1:00 S Rule Para 1992 only - Mar 1 0:00 0 - Rule Para 1992 only - Oct 5 0:00 1:00 S Rule Para 1993 only - Mar 31 0:00 0 - Rule Para 1993 1995 - Oct 1 0:00 1:00 S Rule Para 1994 1995 - Feb lastSun 0:00 0 - Rule Para 1996 only - Mar 1 0:00 0 - # IATA SSIM (2000-02) says 1999-10-10; ignore this for now. # From Steffen Thorsen (2000-10-02): # I have three independent reports that Paraguay changed to DST this Sunday # (10-01). # # Translated by Gwillim Law (2001-02-27) from # Noticias, a daily paper in Asunción, Paraguay (2000-10-01) # : # Starting at 0:00 today, the clock will be set forward 60 minutes, in # fulfillment of Decree No. 7,273 of the Executive Power.... The time change # system has been operating for several years. Formerly there was a separate # decree each year; the new law has the same effect, but permanently. Every # year, the time will change on the first Sunday of October; likewise, the # clock will be set back on the first Sunday of March. # Rule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S # IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger. Rule Para 1997 only - Feb lastSun 0:00 0 - # Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but # (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27). Rule Para 1998 2001 - Mar Sun>=1 0:00 0 - # From Rives McDow (2002-02-28): # A decree was issued in Paraguay (no. 16350) on 2002-02-26 that changed the # dst method to be from the first Sunday in September to the first Sunday in # April. Rule Para 2002 2004 - Apr Sun>=1 0:00 0 - Rule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S # # From Jesper Nørgaard Welen (2005-01-02): # There are several sources that claim that Paraguay made # a timezone rule change in autumn 2004. # From Steffen Thorsen (2005-01-05): # Decree 1,867 (2004-03-05) # From Carlos Raúl Perasso via Jesper Nørgaard Welen (2006-10-13) # Rule Para 2004 2009 - Oct Sun>=15 0:00 1:00 S Rule Para 2005 2009 - Mar Sun>=8 0:00 0 - # From Carlos Raúl Perasso (2010-02-18): # By decree number 3958 issued yesterday # http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf # Paraguay changes its DST schedule, postponing the March rule to April and # modifying the October date. The decree reads: # ... # Art. 1. It is hereby established that from the second Sunday of the month of # April of this year (2010), the official time is to be set back 60 minutes, # and that on the first Sunday of the month of October, it is to be set # forward 60 minutes, in all the territory of the Paraguayan Republic. # ... Rule Para 2010 max - Oct Sun>=1 0:00 1:00 S Rule Para 2010 2012 - Apr Sun>=8 0:00 0 - # # From Steffen Thorsen (2013-03-07): # Paraguay will end DST on 2013-03-24 00:00.... # http://www.ande.gov.py/interna.php?id=1075 # # From Carlos Raúl Perasso (2013-03-15): # The change in Paraguay is now final. Decree number 10780 # http://www.presidencia.gov.py/uploads/pdf/presidencia-3b86ff4b691c79d4f5927ca964922ec74772ce857c02ca054a52a37b49afc7fb.pdf # From Carlos Raúl Perasso (2014-02-28): # Decree 1264 can be found at: # http://www.presidencia.gov.py/archivos/documentos/DECRETO1264_ey9r8zai.pdf Rule Para 2013 max - Mar Sun>=22 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Asuncion -3:50:40 - LMT 1890 -3:50:40 - AMT 1931 Oct 10 # Asunción Mean Time -4:00 - PYT 1972 Oct # Paraguay Time -3:00 - PYT 1974 Apr -4:00 Para PY%sT # Peru # # From Evelyn C. Leeper via Mark Brader (2003-10-26) # : # When we were in Peru in 1985-1986, they apparently switched over # sometime between December 29 and January 3 while we were on the Amazon. # # From Paul Eggert (2006-03-22): # Shanks & Pottenger don't have this transition. Assume 1986 was like 1987. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Peru 1938 only - Jan 1 0:00 1:00 S Rule Peru 1938 only - Apr 1 0:00 0 - Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 - Rule Peru 1986 1987 - Jan 1 0:00 1:00 S Rule Peru 1986 1987 - Apr 1 0:00 0 - Rule Peru 1990 only - Jan 1 0:00 1:00 S Rule Peru 1990 only - Apr 1 0:00 0 - # IATA is ambiguous for 1993/1995; go with Shanks & Pottenger. Rule Peru 1994 only - Jan 1 0:00 1:00 S Rule Peru 1994 only - Apr 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Lima -5:08:12 - LMT 1890 -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time? -5:00 Peru PE%sT # Peru Time # South Georgia # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken -2:00 - GST # South Georgia Time # South Sandwich Is # uninhabited; scientific personnel have wintered # Suriname # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Paramaribo -3:40:40 - LMT 1911 -3:40:52 - PMT 1935 # Paramaribo Mean Time -3:40:36 - PMT 1945 Oct # The capital moved? -3:30 - NEGT 1975 Nov 20 # Dutch Guiana Time -3:30 - SRT 1984 Oct # Suriname Time -3:00 - SRT # Trinidad and Tobago # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 -4:00 - AST # These all agree with Trinidad and Tobago since 1970. Link America/Port_of_Spain America/Anguilla Link America/Port_of_Spain America/Dominica Link America/Port_of_Spain America/Grenada Link America/Port_of_Spain America/Guadeloupe Link America/Port_of_Spain America/Marigot # St Martin (French part) Link America/Port_of_Spain America/Montserrat Link America/Port_of_Spain America/St_Barthelemy # St Barthélemy Link America/Port_of_Spain America/St_Kitts # St Kitts & Nevis Link America/Port_of_Spain America/St_Lucia Link America/Port_of_Spain America/St_Thomas # Virgin Islands (US) Link America/Port_of_Spain America/St_Vincent Link America/Port_of_Spain America/Tortola # Virgin Islands (UK) # Uruguay # From Paul Eggert (1993-11-18): # Uruguay wins the prize for the strangest peacetime manipulation of the rules. # From Shanks & Pottenger: # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S # Whitman gives 1923 Oct 1; go with Shanks & Pottenger. Rule Uruguay 1923 only - Oct 2 0:00 0:30 HS Rule Uruguay 1924 1926 - Apr 1 0:00 0 - Rule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS Rule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS # Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman. Rule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 - Rule Uruguay 1936 only - Nov 1 0:00 0:30 HS Rule Uruguay 1937 1941 - Mar lastSun 0:00 0 - # Whitman gives 1937 Oct 3; go with Shanks & Pottenger. Rule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS # Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13, # and 1943 Apr 13 "to present time"; go with Shanks & Pottenger. Rule Uruguay 1941 only - Aug 1 0:00 0:30 HS Rule Uruguay 1942 only - Jan 1 0:00 0 - Rule Uruguay 1942 only - Dec 14 0:00 1:00 S Rule Uruguay 1943 only - Mar 14 0:00 0 - Rule Uruguay 1959 only - May 24 0:00 1:00 S Rule Uruguay 1959 only - Nov 15 0:00 0 - Rule Uruguay 1960 only - Jan 17 0:00 1:00 S Rule Uruguay 1960 only - Mar 6 0:00 0 - Rule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S Rule Uruguay 1965 only - Sep 26 0:00 0 - Rule Uruguay 1966 1967 - Oct 31 0:00 0 - Rule Uruguay 1968 1970 - May 27 0:00 0:30 HS Rule Uruguay 1968 1970 - Dec 2 0:00 0 - Rule Uruguay 1972 only - Apr 24 0:00 1:00 S Rule Uruguay 1972 only - Aug 15 0:00 0 - Rule Uruguay 1974 only - Mar 10 0:00 0:30 HS Rule Uruguay 1974 only - Dec 22 0:00 1:00 S Rule Uruguay 1976 only - Oct 1 0:00 0 - Rule Uruguay 1977 only - Dec 4 0:00 1:00 S Rule Uruguay 1978 only - Apr 1 0:00 0 - Rule Uruguay 1979 only - Oct 1 0:00 1:00 S Rule Uruguay 1980 only - May 1 0:00 0 - Rule Uruguay 1987 only - Dec 14 0:00 1:00 S Rule Uruguay 1988 only - Mar 14 0:00 0 - Rule Uruguay 1988 only - Dec 11 0:00 1:00 S Rule Uruguay 1989 only - Mar 12 0:00 0 - Rule Uruguay 1989 only - Oct 29 0:00 1:00 S # Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2, # and that 1992/3's DST was from 10-25 to 03-01. Go with IATA. Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 - Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S Rule Uruguay 1992 only - Oct 18 0:00 1:00 S Rule Uruguay 1993 only - Feb 28 0:00 0 - # From Eduardo Cota (2004-09-20): # The uruguayan government has decreed a change in the local time.... # http://www.presidencia.gub.uy/decretos/2004091502.htm Rule Uruguay 2004 only - Sep 19 0:00 1:00 S # From Steffen Thorsen (2005-03-11): # Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to # save energy ... it was postponed two weeks.... # http://www.presidencia.gub.uy/_Web/noticias/2005/03/2005031005.htm Rule Uruguay 2005 only - Mar 27 2:00 0 - # From Eduardo Cota (2005-09-27): # http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005_00001.PDF # This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at # 02:00 local time, official time in Uruguay will be at GMT -2. Rule Uruguay 2005 only - Oct 9 2:00 1:00 S Rule Uruguay 2006 only - Mar 12 2:00 0 - # From Jesper Nørgaard Welen (2006-09-06): # http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDF Rule Uruguay 2006 max - Oct Sun>=1 2:00 1:00 S Rule Uruguay 2007 max - Mar Sun>=8 2:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28 -3:44:44 - MMT 1920 May 1 # Montevideo MT -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time -3:00 Uruguay UY%sT # Venezuela # # From John Stainforth (2007-11-28): # ... the change for Venezuela originally expected for 2007-12-31 has # been brought forward to 2007-12-09. The official announcement was # published today in the "Gaceta Oficial de la República Bolivariana # de Venezuela, número 38.819" (official document for all laws or # resolution publication) # http://www.globovision.com/news.php?nid=72208 # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Caracas -4:27:44 - LMT 1890 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time? -4:30 - VET 1965 # Venezuela Time -4:00 - VET 2007 Dec 9 03:00 -4:30 - VET @