1# @(#)southamerica 7.42 |
2 |
3# $FreeBSD: head/share/zoneinfo/southamerica 86222 2001-11-09 19:17:59Z wollman $ |
4 5# This data is by no means authoritative; if you think you know better, 6# go ahead and edit the file (and please send any changes to 7# tz@elsie.nci.nih.gov for general use in the future). 8 9# From Paul Eggert <eggert@twinsun.com> (1999-07-07): 10# A good source for time zone historical data outside the U.S. is 11# Thomas G. Shanks, The International Atlas (5th edition), 12# San Diego: ACS Publications, Inc. (1999). 13# |
14# Gwillim Law writes that a good source |
15# for recent time zone data is the International Air Transport 16# Association's Standard Schedules Information Manual (IATA SSIM), 17# published semiannually. Law sent in several helpful summaries 18# of the IATA's data after 1990. 19# 20# Except where otherwise noted, Shanks is the source for entries through 1990, 21# and IATA SSIM is the source for entries after 1990. 22# --- 99 unchanged lines hidden (view full) --- 122# Argentina decided not to become one of the countries that go on or off DST. 123# So Buenos Aires should be -3 hours from GMT at all times. 124# 125# From Fabian L. Arce Jofre <farcejofre@bigfoot.com> (2000-04-04): 126# The law that claimed DST for Argentina was derogated by President Fernando 127# de la Rua on March 2, 2000, because it would make people spend more energy 128# in the winter time, rather than less. The change took effect on March 3. 129# |
130# From Mariano Absatz (2001-06-06): 131# one of the major newspapers here in Argentina said that the 1999 132# Timezone Law (which never was effectively applied) will (would?) be 133# in effect.... The article is at 134# http://ar.clarin.com/diario/2001-06-06/e-01701.htm 135# ... The Law itself is "Ley No 25155", sanctioned on 1999-08-25, enacted 136# 1999-09-17, and published 1999-09-21. The official publication is at: 137# http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF 138# Regretfully, you have to subscribe (and pay) for the on-line version.... 139# 140# (2001-06-12): 141# the timezone for Argentina will not change next Sunday. 142# Apparently it will do so on Sunday 24th.... 143# http://ar.clarin.com/diario/2001-06-12/s-03501.htm 144# 145# (2001-06-25): 146# Last Friday (yes, the last working day before the date of the change), the 147# Senate annulled the 1999 law that introduced the changes later postponed. 148# http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm 149# It remains the vote of the Deputies..., but it will be the same.... 150# This kind of things had always been done this way in Argentina. 151# We are still -03:00 all year round in all of the country. 152# |
153# Zone NAME GMTOFF RULES FORMAT [UNTIL] 154# 155# Buenos Aires (BA), Capital Federal (CF), Santa Cruz (SC), 156# Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF) 157Zone America/Buenos_Aires -3:53:48 - LMT 1894 Nov 158 -4:16:44 - CMT 1920 May # Cordoba Mean Time 159 -4:00 - ART 1930 Dec 160 -4:00 Arg AR%sT 1969 Oct 5 --- 65 unchanged lines hidden (view full) --- 226# Zone NAME GMTOFF RULES FORMAT [UNTIL] 227Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad 228 -4:30 - ANT 1965 # Netherlands Antilles Time 229 -4:00 - AST 230 231# Bolivia 232# Zone NAME GMTOFF RULES FORMAT [UNTIL] 233Zone America/La_Paz -4:32:36 - LMT 1890 |
234 -4:32:36 - CMT 1931 Oct 15 # Calamarca MT |
235 -4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST 236 -4:00 - BOT # Bolivia Time 237 238# Brazil 239 240# From Paul Eggert <eggert@twinsun.com> (1993-11-18): 241# The mayor of Rio recently attempted to change the time zone rules 242# just in his city, in order to leave more summer time for the tourist trade. --- 159 unchanged lines hidden (view full) --- 402Rule Brazil 1999 only - Oct 3 0:00 1:00 S 403Rule Brazil 2000 only - Feb 27 0:00 0 - 404# Decree <a href="http://pcdsh01.on.br/DEC3592.htm">3,592</a> (2000-09-06) 405# adopted by the same states as before. 406# Decree <a href="http://pcdsh01.on.br/Dec3630.jpg">3,630</a> (2000-10-13) 407# repeals DST in PE and RR, effective 2000-10-15 00:00. 408# Decree <a href="http://pcdsh01.on.br/Dec3632.jpg">3,632</a> (2000-10-17) 409# repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00. |
410# Decree <a href="http://pcdsh01.on.br/figuras/HV3916.gif">3,916</a> 411# (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE. |
412# |
413# The latest decree listed above says that the following states observe DST: 414# AL, BA, CE, DF, ES, GO, MA, MG, MS, MT, 415# PB, PE, PI, PR, RJ, RN, RS, SC, SE, SP, TO. 416# 417# For dates after mid-2002, the following rules are guesses |
418# and are quite possibly wrong, but are more likely than no DST at all. 419Rule Brazil 2000 max - Oct Sun>=8 0:00 1:00 S 420Rule Brazil 2001 max - Feb Sun>=15 0:00 0 - 421 422 423# Zone NAME GMTOFF RULES FORMAT [UNTIL] 424# 425# Atlantic islands: Fernando de Noronha, Trindade, Martin Vaz, --- 9 unchanged lines hidden (view full) --- 435 -3:00 - BRT 436# 437# Maranhao (MA), Piaui (PI), Ceara (CE), Rio Grande do Norte (RN), 438# Paraiba (PB) 439Zone America/Fortaleza -2:34:00 - LMT 1914 440 -3:00 Brazil BR%sT 1990 Sep 17 441 -3:00 - BRT 1999 Sep 30 442 -3:00 Brazil BR%sT 2000 Oct 22 |
443 -3:00 - BRT 2001 Sep 13 444 -3:00 Brazil BR%sT |
445# 446# Pernambuco (PE) (except Atlantic islands) 447Zone America/Recife -2:19:36 - LMT 1914 448 -3:00 Brazil BR%sT 1990 Sep 17 449 -3:00 - BRT 1999 Sep 30 450 -3:00 Brazil BR%sT 2000 Oct 15 |
451 -3:00 - BRT 2001 Sep 13 452 -3:00 Brazil BR%sT |
453# 454# Tocantins (TO) 455Zone America/Araguaina -3:12:48 - LMT 1914 456 -3:00 Brazil BR%sT 1990 Sep 17 457 -3:00 - BRT 1995 Sep 14 458 -3:00 Brazil BR%sT 459# 460# Alagoas (AL), Sergipe (SE) 461Zone America/Maceio -2:22:52 - LMT 1914 462 -3:00 Brazil BR%sT 1990 Sep 17 463 -3:00 - BRT 1995 Oct 13 464 -3:00 Brazil BR%sT 1996 Sep 4 465 -3:00 - BRT 1999 Sep 30 466 -3:00 Brazil BR%sT 2000 Oct 22 |
467 -3:00 - BRT 2001 Sep 13 468 -3:00 Brazil BR%sT |
469# 470# Bahia (BA), Goias (GO), Distrito Federal (DF), Minas Gerais (MG), 471# Espirito Santo (ES), Rio de Janeiro (RJ), Sao Paulo (SP), Parana (PR), 472# Santa Catarina (SC), Rio Grande do Sul (RS) 473Zone America/Sao_Paulo -3:06:28 - LMT 1914 474 -3:00 Brazil BR%sT 1963 Oct 23 00:00 475 -3:00 1:00 BRST 1964 476 -3:00 Brazil BR%sT 477# |
478# Mato Grosso (MT), Mato Grosso do Sul (MS) |
479Zone America/Cuiaba -3:44:20 - LMT 1914 480 -4:00 Brazil AM%sT 481# 482# west Para (PA), Rondonia (RO) 483# West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem. 484Zone America/Porto_Velho -4:15:36 - LMT 1914 485 -4:00 Brazil AM%sT 1988 Sep 12 486 -4:00 - AMT --- 35 unchanged lines hidden (view full) --- 522# Because of the drought this year, the government decided to go into 523# DST earlier (saturday 9/26 at 24:00). This is a one-time change only ... 524# (unless there's another dry season next year, I guess). 525 526# From Julio I. Pacheco Troncoso (1999-03-18): 527# Because of the same drought, the government decided to end DST later, 528# on April 3, (one-time change). 529 |
530# From Gwillim Law (2001-05-04): 531# I came across another article in "La Tercera" about Chilean DST. 532# <http://www.tercera.cl/diario/2000/10/13/t-extras.html> 533# It clearly confirms my earlier suggestion, that DST begins at 22:00 534# on Easter Island.... But it also seems to be saying that the 535# observance of DST in Chile began in 1966, rather than 1969 as 536# ... [Shanks] has it.... 537# 538# My translation: 539# 540# "The Chilean Army has announced that summer time will begin tomorrow, 541# Saturday, October 14 in continental Chile, insular Chile, and 542# Antarctica, as provided by Supreme Decree 25 of January 11, 1966. 543# By the preceding, official time in continental Chile and Chilean 544# Antarctic, and official time in Western Insular Chile, which applies 545# to Easter Island and Sala y Gomez Island, will be set forward at 546# midnight and at 22:00, respectively, by 20 minutes." |
547 |
548# From Paul Eggert (2001-05-04): 549# Go with this article in preference to Shanks's 1969 date for modern DST. |
550# Assume this rule has been used since DST was introduced in the islands. 551 552# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 553Rule Chile 1918 only - Sep 1 0:00 1:00 S 554Rule Chile 1919 only - Jul 2 0:00 0 - 555Rule Chile 1927 1931 - Sep 1 0:00 1:00 S 556Rule Chile 1928 1932 - Apr 1 0:00 0 - |
557Rule Chile 1966 1997 - Oct Sun>=9 4:00u 1:00 S 558Rule Chile 1967 1998 - Mar Sun>=9 3:00u 0 - |
559Rule Chile 1998 only - Sep 27 4:00u 1:00 S 560Rule Chile 1999 only - Apr 4 3:00u 0 - 561Rule Chile 1999 max - Oct Sun>=9 4:00u 1:00 S 562Rule Chile 2000 max - Mar Sun>=9 3:00u 0 - 563# IATA SSIM anomalies: (1990-09) says 1990-09-16; (1992-02) says 1992-03-14; 564# (1996-09) says 1998-03-08. Ignore these. 565# Zone NAME GMTOFF RULES FORMAT [UNTIL] 566Zone America/Santiago -4:42:40 - LMT 1890 567 -4:42:40 - SMT 1910 # Santiago Mean Time 568 -5:00 Chile CL%sT 1932 Sep # Chile Time 569 -4:00 Chile CL%sT 570Zone Pacific/Easter -7:17:28 - LMT 1890 # Mataveri 571 -7:17:28 - MMT 1932 Sep # Mataveri Mean Time 572 -7:00 Chile EAS%sT 1982 Mar 14 # Easter I Time 573 -6:00 Chile EAS%sT 574# |
575# Sala y Gomez Island is like Pacific/Easter. 576# Other Chilean locations, including Juan Fernandez Is, San Ambrosio, 577# San Felix, and Antarctic bases, are like America/Santiago. |
578 |
579# Colombia 580# Shanks specifies 24:00 for 1992 transition times; go with IATA, 581# as it seems implausible to change clocks at midnight New Year's Eve. 582# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 583Rule CO 1992 only - May 2 0:00 1:00 S 584Rule CO 1992 only - Dec 31 0:00 0 - 585# Zone NAME GMTOFF RULES FORMAT [UNTIL] 586Zone America/Bogota -4:56:20 - LMT 1884 Mar 13 --- 168 unchanged lines hidden (view full) --- 755Rule Peru 1987 only - Apr 1 0:00 0 - 756Rule Peru 1990 only - Jan 1 0:00 1:00 S 757Rule Peru 1990 only - Apr 1 0:00 0 - 758# IATA is ambiguous for 1993/1995; go with Shanks. 759Rule Peru 1994 only - Jan 1 0:00 1:00 S 760Rule Peru 1994 only - Apr 1 0:00 0 - 761# Zone NAME GMTOFF RULES FORMAT [UNTIL] 762Zone America/Lima -5:08:12 - LMT 1890 |
763 -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time? |
764 -5:00 Peru PE%sT # Peru Time 765 766# South Georgia 767# Zone NAME GMTOFF RULES FORMAT [UNTIL] 768Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken 769 -2:00 - GST # South Georgia Time 770 771# South Sandwich Is --- 68 unchanged lines hidden (view full) --- 840Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28 841 -3:44:44 - MMT 1920 May 1 # Montevideo MT 842 -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time 843 -3:00 Uruguay UY%sT 844 845# Venezuela 846# Zone NAME GMTOFF RULES FORMAT [UNTIL] 847Zone America/Caracas -4:27:44 - LMT 1890 |
848 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time? |
849 -4:30 - VET 1965 # Venezuela Time 850 -4:00 - VET |