southamerica revision 197597
1153761Swollman# <pre> 2197597Sedwin# @(#)southamerica 8.37 3192886Sedwin# This file is in the public domain, so clarified as of 4192886Sedwin# 2009-05-17 by Arthur David Olson. 564499Swollman 62742Swollman# This data is by no means authoritative; if you think you know better, 72742Swollman# go ahead and edit the file (and please send any changes to 82742Swollman# tz@elsie.nci.nih.gov for general use in the future). 92742Swollman 10158421Swollman# From Paul Eggert (2006-03-22): 112742Swollman# A good source for time zone historical data outside the U.S. is 12158421Swollman# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), 13158421Swollman# San Diego: ACS Publications, Inc. (2003). 142742Swollman# 1586222Swollman# Gwillim Law writes that a good source 1620094Swollman# for recent time zone data is the International Air Transport 1720094Swollman# Association's Standard Schedules Information Manual (IATA SSIM), 1820094Swollman# published semiannually. Law sent in several helpful summaries 1920094Swollman# of the IATA's data after 1990. 2020094Swollman# 21158421Swollman# Except where otherwise noted, Shanks & Pottenger is the source for 22158421Swollman# entries through 1990, and IATA SSIM is the source for entries afterwards. 2320094Swollman# 2419878Swollman# Earlier editions of these tables used the North American style (e.g. ARST and 2519878Swollman# ARDT for Argentine Standard and Daylight Time), but the following quote 2619878Swollman# suggests that it's better to use European style (e.g. ART and ARST). 2719878Swollman# I suggest the use of _Summer time_ instead of the more cumbersome 2819878Swollman# _daylight-saving time_. _Summer time_ seems to be in general use 2919878Swollman# in Europe and South America. 3019878Swollman# -- E O Cutler, _New York Times_ (1937-02-14), quoted in 3119878Swollman# H L Mencken, _The American Language: Supplement I_ (1960), p 466 3258787Sru# 3358787Sru# Earlier editions of these tables also used the North American style 3458787Sru# for time zones in Brazil, but this was incorrect, as Brazilians say 3558787Sru# "summer time". Reinaldo Goulart, a Sao Paulo businessman active in 3658787Sru# the railroad sector, writes (1999-07-06): 3758787Sru# The subject of time zones is currently a matter of discussion/debate in 3858787Sru# Brazil. Let's say that "the Brasilia time" is considered the 3958787Sru# "official time" because Brasilia is the capital city. 4058787Sru# The other three time zones are called "Brasilia time "minus one" or 4158787Sru# "plus one" or "plus two". As far as I know there is no such 4258787Sru# name/designation as "Eastern Time" or "Central Time". 4358787Sru# So I invented the following (English-language) abbreviations for now. 4458787Sru# Corrections are welcome! 4558787Sru# std dst 4658787Sru# -2:00 FNT FNST Fernando de Noronha 4758787Sru# -3:00 BRT BRST Brasilia 4858787Sru# -4:00 AMT AMST Amazon 4958787Sru# -5:00 ACT ACST Acre 502742Swollman 512742Swollman############################################################################### 522742Swollman 532742Swollman############################################################################### 542742Swollman 552742Swollman# Argentina 562742Swollman 5719878Swollman# From Bob Devine (1988-01-28): 582742Swollman# Argentina: first Sunday in October to first Sunday in April since 1976. 592742Swollman# Double Summer time from 1969 to 1974. Switches at midnight. 602742Swollman 6119878Swollman# From U. S. Naval Observatory (1988-01-199): 622742Swollman# ARGENTINA 3 H BEHIND UTC 632742Swollman 64149514Swollman# From Hernan G. Otero (1995-06-26): 6521217Swollman# I am sending modifications to the Argentine time zone table... 669908Swollman# AR was chosen because they are the ISO letters that represent Argentina. 679908Swollman 682742Swollman# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 6919878SwollmanRule Arg 1930 only - Dec 1 0:00 1:00 S 7019878SwollmanRule Arg 1931 only - Apr 1 0:00 0 - 7119878SwollmanRule Arg 1931 only - Oct 15 0:00 1:00 S 7219878SwollmanRule Arg 1932 1940 - Mar 1 0:00 0 - 7319878SwollmanRule Arg 1932 1939 - Nov 1 0:00 1:00 S 7419878SwollmanRule Arg 1940 only - Jul 1 0:00 1:00 S 7519878SwollmanRule Arg 1941 only - Jun 15 0:00 0 - 7619878SwollmanRule Arg 1941 only - Oct 15 0:00 1:00 S 7719878SwollmanRule Arg 1943 only - Aug 1 0:00 0 - 7819878SwollmanRule Arg 1943 only - Oct 15 0:00 1:00 S 7919878SwollmanRule Arg 1946 only - Mar 1 0:00 0 - 8019878SwollmanRule Arg 1946 only - Oct 1 0:00 1:00 S 8119878SwollmanRule Arg 1963 only - Oct 1 0:00 0 - 8219878SwollmanRule Arg 1963 only - Dec 15 0:00 1:00 S 8319878SwollmanRule Arg 1964 1966 - Mar 1 0:00 0 - 8419878SwollmanRule Arg 1964 1966 - Oct 15 0:00 1:00 S 8593799SwollmanRule Arg 1967 only - Apr 2 0:00 0 - 8658787SruRule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S 8758787SruRule Arg 1968 1969 - Apr Sun>=1 0:00 0 - 8819878SwollmanRule Arg 1974 only - Jan 23 0:00 1:00 S 8919878SwollmanRule Arg 1974 only - May 1 0:00 0 - 9019878SwollmanRule Arg 1988 only - Dec 1 0:00 1:00 S 919908Swollman# 92149514Swollman# From Hernan G. Otero (1995-06-26): 939908Swollman# These corrections were contributed by InterSoft Argentina S.A., 949908Swollman# obtaining the data from the: 959908Swollman# Talleres de Hidrografia Naval Argentina 9621217Swollman# (Argentine Naval Hydrography Institute) 9719878SwollmanRule Arg 1989 1993 - Mar Sun>=1 0:00 0 - 9819878SwollmanRule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S 999908Swollman# 100149514Swollman# From Hernan G. Otero (1995-06-26): 1019908Swollman# From this moment on, the law that mandated the daylight saving 1029908Swollman# time corrections was derogated and no more modifications 1039908Swollman# to the time zones (for daylight saving) are now made. 1049908Swollman# 10558787Sru# From Rives McDow (2000-01-10): 10658787Sru# On October 3, 1999, 0:00 local, Argentina implemented daylight savings time, 10758787Sru# which did not result in the switch of a time zone, as they stayed 9 hours 10864499Swollman# from the International Date Line. 10964499SwollmanRule Arg 1999 only - Oct Sun>=1 0:00 1:00 S 110175034Sedwin# From Paul Eggert (2007-12-28): 111175034Sedwin# DST was set to expire on March 5, not March 3, but since it was converted 112175034Sedwin# to standard time on March 3 it's more convenient for us to pretend that 113175034Sedwin# it ended on March 3. 114175034SedwinRule Arg 2000 only - Mar 3 0:00 0 - 11558787Sru# 11658787Sru# From Peter Gradelski via Steffen Thorsen (2000-03-01): 11767578Swollman# We just checked with our Sao Paulo office and they say the government of 11858787Sru# Argentina decided not to become one of the countries that go on or off DST. 11958787Sru# So Buenos Aires should be -3 hours from GMT at all times. 12058787Sru# 121149514Swollman# From Fabian L. Arce Jofre (2000-04-04): 12264499Swollman# The law that claimed DST for Argentina was derogated by President Fernando 12364499Swollman# de la Rua on March 2, 2000, because it would make people spend more energy 12464499Swollman# in the winter time, rather than less. The change took effect on March 3. 12564499Swollman# 12686222Swollman# From Mariano Absatz (2001-06-06): 12786222Swollman# one of the major newspapers here in Argentina said that the 1999 12886222Swollman# Timezone Law (which never was effectively applied) will (would?) be 12986222Swollman# in effect.... The article is at 13086222Swollman# http://ar.clarin.com/diario/2001-06-06/e-01701.htm 13186222Swollman# ... The Law itself is "Ley No 25155", sanctioned on 1999-08-25, enacted 13286222Swollman# 1999-09-17, and published 1999-09-21. The official publication is at: 13386222Swollman# http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF 13486222Swollman# Regretfully, you have to subscribe (and pay) for the on-line version.... 13586222Swollman# 13686222Swollman# (2001-06-12): 13786222Swollman# the timezone for Argentina will not change next Sunday. 13886222Swollman# Apparently it will do so on Sunday 24th.... 13986222Swollman# http://ar.clarin.com/diario/2001-06-12/s-03501.htm 14086222Swollman# 14186222Swollman# (2001-06-25): 14286222Swollman# Last Friday (yes, the last working day before the date of the change), the 14386222Swollman# Senate annulled the 1999 law that introduced the changes later postponed. 14486222Swollman# http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm 14586222Swollman# It remains the vote of the Deputies..., but it will be the same.... 14686222Swollman# This kind of things had always been done this way in Argentina. 14786222Swollman# We are still -03:00 all year round in all of the country. 14886222Swollman# 149175034Sedwin# From Steffen Thorsen (2007-12-21): 150175034Sedwin# A user (Leonardo Chaim) reported that Argentina will adopt DST.... 151175034Sedwin# all of the country (all Zone-entries) are affected. News reports like 152175034Sedwin# http://www.lanacion.com.ar/opinion/nota.asp?nota_id=973037 indicate 153175034Sedwin# that Argentina will use DST next year as well, from October to 154175034Sedwin# March, although exact rules are not given. 155175034Sedwin# 156175034Sedwin# From Jesper Norgaard Welen (2007-12-26) 157175034Sedwin# The last hurdle of Argentina DST is over, the proposal was approved in 158175034Sedwin# the lower chamber too (Deputados) with a vote 192 for and 2 against. 159175034Sedwin# By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to 160175034Sedwin# the original scanned proposal, where the dates and the zero hours are 161175034Sedwin# clear and unambiguous...This is the article about final approval: 162175034Sedwin# <a href="http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996"> 163175034Sedwin# http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996 164175034Sedwin# </a> 165175034Sedwin# 166175034Sedwin# From Paul Eggert (2007-12-22): 167175034Sedwin# For dates after mid-2008, the following rules are my guesses and 168175034Sedwin# are quite possibly wrong, but are more likely than no DST at all. 169183066Sedwin 170183066Sedwin# From Alexander Krivenyshev (2008-09-05): 171183066Sedwin# As per message from Carlos Alberto Fonseca Arauz (Nicaragua), 172183066Sedwin# Argentina will start DST on Sunday October 19, 2008. 173183066Sedwin# 174183066Sedwin# <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina03.html"> 175183066Sedwin# http://www.worldtimezone.com/dst_news/dst_news_argentina03.html 176183066Sedwin# </a> 177183066Sedwin# OR 178183066Sedwin# <a href="http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish)"> 179183066Sedwin# http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish) 180183066Sedwin# </a> 181183066Sedwin 182183864Sedwin# From Rodrigo Severo (2008-10-06): 183183864Sedwin# Here is some info available at a Gentoo bug related to TZ on Argentina's DST: 184183864Sedwin# ... 185183864Sedwin# ------- Comment #1 from [jmdocile] 2008-10-06 16:28 0000 ------- 186183864Sedwin# Hi, there is a problem with timezone-data-2008e and maybe with 187183864Sedwin# timezone-data-2008f 188183864Sedwin# Argentinian law [Number] 25.155 is no longer valid. 189183864Sedwin# <a href="http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm"> 190183864Sedwin# http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm 191183864Sedwin# </a> 192183864Sedwin# The new one is law [Number] 26.350 193183864Sedwin# <a href="http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm"> 194183864Sedwin# http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm 195183864Sedwin# </a> 196183864Sedwin# So there is no summer time in Argentina for now. 197183864Sedwin 198184406Sedwin# From Mariano Absatz (2008-10-20): 199184406Sedwin# Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST in Argentina 200184406Sedwin# From 2008-10-19 until 2009-03-15 201184406Sedwin# <a href="http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01"> 202184406Sedwin# http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01 203184406Sedwin# </a> 204184406Sedwin# 205184406Sedwin# Decree 1705/2008 excepting 12 Provinces from applying DST in the summer 2008/2009: 206184406Sedwin# Catamarca, La Rioja, Mendoza, Salta, San Juan, San Luis, La Pampa, Neuquen, Rio Negro, Chubut, Santa Cruz 207184406Sedwin# and Tierra del Fuego 208184406Sedwin# <a href="http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01"> 209184406Sedwin# http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01 210184406Sedwin# </a> 211184406Sedwin# 212184406Sedwin# Press release 235 dated Saturday October 18th, from the Government of the Province of Jujuy saying 213184406Sedwin# it will not apply DST either (even when it was not included in Decree 1705/2008) 214184406Sedwin# <a href="http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc"> 215184406Sedwin# http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc 216184406Sedwin# </a> 217184406Sedwin 218175034SedwinRule Arg 2007 only - Dec 30 0:00 1:00 S 219175034SedwinRule Arg 2008 max - Mar Sun>=15 0:00 0 - 220183066SedwinRule Arg 2008 max - Oct Sun>=15 0:00 1:00 S 221175034Sedwin 222136638Swollman# From Mariano Absatz (2004-05-21): 223136638Swollman# Today it was officially published that the Province of Mendoza is changing 224136638Swollman# its timezone this winter... starting tomorrow night.... 225136638Swollman# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf 226136638Swollman# From Paul Eggert (2004-05-24): 227136638Swollman# It's Law No. 7,210. This change is due to a public power emergency, so for 228136638Swollman# now we'll assume it's for this year only. 22993799Swollman# 230158421Swollman# From Paul Eggert (2006-03-22): 23193799Swollman# <a href="http://www.spicasc.net/horvera.html"> 232158421Swollman# Hora de verano para la Republica Argentina (2003-06-08) 23393799Swollman# </a> says that standard time in Argentina from 1894-10-31 23493799Swollman# to 1920-05-01 was -4:16:48.25. Go with this more-precise value 235158421Swollman# over Shanks & Pottenger. 236136638Swollman# 237136638Swollman# From Mariano Absatz (2004-06-05): 238136638Swollman# These media articles from a major newspaper mostly cover the current state: 239136638Swollman# http://www.lanacion.com.ar/04/05/27/de_604825.asp 240136638Swollman# http://www.lanacion.com.ar/04/05/28/de_605203.asp 241136638Swollman# 242136638Swollman# The following eight (8) provinces pulled clocks back to UTC-04:00 at 243136638Swollman# midnight Monday May 31st. (that is, the night between 05/31 and 06/01). 244136638Swollman# Apparently, all nine provinces would go back to UTC-03:00 at the same 245136638Swollman# time in October 17th. 246136638Swollman# 247136638Swollman# Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz, 248136638Swollman# Tierra del Fuego, Tucuman. 249136638Swollman# 250136638Swollman# From Mariano Absatz (2004-06-14): 251136638Swollman# ... this weekend, the Province of Tucuman decided it'd go back to UTC-03:00 252136638Swollman# yesterday midnight (that is, at 24:00 Saturday 12th), since the people's 253136638Swollman# annoyance with the change is much higher than the power savings obtained.... 254136638Swollman# 255136638Swollman# From Gwillim Law (2004-06-14): 256136638Swollman# http://www.lanacion.com.ar/04/06/10/de_609078.asp ... 257136638Swollman# "The time change in Tierra del Fuego was a conflicted decision from 258136638Swollman# the start. The government had decreed that the measure would take 259136638Swollman# effect on June 1, but a normative error forced the new time to begin 260136638Swollman# three days earlier, from a Saturday to a Sunday.... 261136638Swollman# Our understanding was that the change was originally scheduled to take place 262136638Swollman# on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other 263136638Swollman# provinces). Sunday was May 30, only two days earlier. So the article 264136638Swollman# contains a contradiction. I would give more credence to the Saturday/Sunday 265136638Swollman# date than the "three days earlier" phrase, and conclude that Tierra del 266136638Swollman# Fuego set its clocks back at 2004-05-30 00:00. 267136638Swollman# 268136638Swollman# From Steffen Thorsen (2004-10-05): 269136638Swollman# The previous law 7210 which changed the province of Mendoza's time zone 270136638Swollman# back in May have been modified slightly in a new law 7277, which set the 271136638Swollman# new end date to 2004-09-26 (original date was 2004-10-17). 272136638Swollman# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf 273136638Swollman# 274136638Swollman# From Mariano Absatz (2004-10-05): 275136638Swollman# San Juan changed from UTC-03:00 to UTC-04:00 at midnight between 276136638Swollman# Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00 277136638Swollman# at midnight between Saturday, July 24th and Sunday, July 25th.... 278136638Swollman# http://www.sanjuan.gov.ar/prensa/archivo/000329.html 279136638Swollman# http://www.sanjuan.gov.ar/prensa/archivo/000426.html 280136638Swollman# http://www.sanjuan.gov.ar/prensa/archivo/000441.html 28193799Swollman 282177591Sedwin# From Alex Krivenyshev (2008-01-17): 283177591Sedwin# Here are articles that Argentina Province San Luis is planning to end DST 284177591Sedwin# as earlier as upcoming Monday January 21, 2008 or February 2008: 285177591Sedwin# 286177591Sedwin# Provincia argentina retrasa reloj y marca diferencia con resto del pais 287177591Sedwin# (Argentine Province delayed clock and mark difference with the rest of the 288177591Sedwin# country) 289177591Sedwin# <a href="http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel"> 290177591Sedwin# http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel 291177591Sedwin# </a> 292177591Sedwin# 293177591Sedwin# Es inminente que en San Luis atrasen una hora los relojes 294177591Sedwin# (It is imminent in San Luis clocks one hour delay) 295177591Sedwin# <a href="http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414"> 296177591Sedwin# http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414 297177591Sedwin# </a> 298177591Sedwin# 299177591Sedwin# <a href="http://www.worldtimezone.net/dst_news/dst_news_argentina02.html"> 300177591Sedwin# http://www.worldtimezone.net/dst_news/dst_news_argentina02.html 301177591Sedwin# </a> 302177591Sedwin 303177591Sedwin# From Jesper Norgaard Welen (2008-01-18): 304177591Sedwin# The page of the San Luis provincial government 305177591Sedwin# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812"> 306177591Sedwin# http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812 307177591Sedwin# </a> 308177591Sedwin# confirms what Alex Krivenyshev has earlier sent to the tz 309177591Sedwin# emailing list about that San Luis plans to return to standard 310177591Sedwin# time much earlier than the rest of the country. It also 311177591Sedwin# confirms that upon request the provinces San Juan and Mendoza 312177591Sedwin# refused to follow San Luis in this change. 313177591Sedwin# 314177591Sedwin# The change is supposed to take place Monday the 21.st at 0:00 315177591Sedwin# hours. As far as I understand it if this goes ahead, we need 316177591Sedwin# a new timezone for San Luis (although there are also documented 317177591Sedwin# independent changes in the southamerica file of San Luis in 318177591Sedwin# 1990 and 1991 which has not been confirmed). 319177591Sedwin 320177591Sedwin# From Jesper Norgaard Welen (2008-01-25): 321177591Sedwin# Unfortunately the below page has become defunct, about the San Luis 322177591Sedwin# time change. Perhaps because it now is part of a group of pages "Most 323177591Sedwin# important pages of 2008." 324177591Sedwin# 325177591Sedwin# You can use 326177591Sedwin# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834"> 327177591Sedwin# http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834 328177591Sedwin# </a> 329177591Sedwin# instead it seems. Or use "Buscador" from the main page of the San Luis 330177591Sedwin# government, and fill in "huso" and click OK, and you will get 3 pages 331177591Sedwin# from which the first one is identical to the above. 332177591Sedwin 333177591Sedwin# From Mariano Absatz (2008-01-28): 334177591Sedwin# I can confirm that the Province of San Luis (and so far only that 335177591Sedwin# province) decided to go back to UTC-3 effective midnight Jan 20th 2008 336177591Sedwin# (that is, Monday 21st at 0:00 is the time the clocks were delayed back 337177591Sedwin# 1 hour), and they intend to keep UTC-3 as their timezone all year round 338177591Sedwin# (that is, unless they change their mind any minute now). 339177591Sedwin# 340177591Sedwin# So we'll have to add yet another city to 'southamerica' (I think San 341177591Sedwin# Luis city is the mos populated city in the Province, so it'd be 342177591Sedwin# America/Argentina/San_Luis... of course I can't remember if San Luis's 343177591Sedwin# history of particular changes goes along with Mendoza or San Juan :-( 344177591Sedwin# (I only remember not being able to collect hard facts about San Luis 345177591Sedwin# back in 2004, when these provinces changed to UTC-4 for a few days, I 346177591Sedwin# mailed them personally and never got an answer). 347177591Sedwin 348181421Sedwin# From Paul Eggert (2008-06-30): 349158421Swollman# Unless otherwise specified, data are from Shanks & Pottenger through 1992, 350158421Swollman# from the IATA otherwise. As noted below, Shanks & Pottenger say that 351181421Sedwin# America/Cordoba split into 6 subregions during 1991/1992, one of which 352181421Sedwin# was America/San_Luis, but we haven't verified this yet so for now we'll 353181421Sedwin# keep America/Cordoba a single region rather than splitting it into the 354181421Sedwin# other 5 subregions. 355181421Sedwin 356190372Sedwin# From Mariano Absatz (2009-03-13): 357190372Sedwin# Yesterday (with our usual 2-day notice) the Province of San Luis 358190372Sedwin# decided that next Sunday instead of "staying" @utc-03:00 they will go 359190372Sedwin# to utc-04:00 until the second Saturday in October... 36093799Swollman# 361190372Sedwin# The press release is at 362190372Sedwin# <a href="http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102"> 363190372Sedwin# http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102 364190372Sedwin# </a> 365190372Sedwin# (I couldn't find the decree, but 366190372Sedwin# <a href="http://www.sanluis.gov.ar"> 367190372Sedwin# www.sanluis.gov.ar 368190372Sedwin# <a/> 369190372Sedwin# is the official page for the Province Government). 370190372Sedwin# 371190372Sedwin# There's also a note in only one of the major national papers (La Naci�n) at 372190372Sedwin# <a href="http://www.lanacion.com.ar/nota.asp?nota_id=1107912"> 373190372Sedwin# http://www.lanacion.com.ar/nota.asp?nota_id=1107912 374190372Sedwin# </a> 375190372Sedwin# 376190372Sedwin# The press release says: 377190372Sedwin# (...) anunci� que el pr�ximo domingo a las 00:00 los puntanos deber�n 378190372Sedwin# atrasar una hora sus relojes. 379190372Sedwin# 380190372Sedwin# A partir de entonces, San Luis establecer� el huso horario propio de 381190372Sedwin# la Provincia. De esta manera, durante el periodo del calendario anual 382190372Sedwin# 2009, el cambio horario quedar� comprendido entre las 00:00 del tercer 383190372Sedwin# domingo de marzo y las 24:00 del segundo s�bado de octubre. 384190372Sedwin# Quick&dirty translation 385190372Sedwin# (...) announced that next Sunday, at 00:00, Puntanos (the San Luis 386190372Sedwin# inhabitants) will have to turn back one hour their clocks 387190372Sedwin# 388190372Sedwin# Since then, San Luis will establish its own Province timezone. Thus, 389190372Sedwin# during 2009, this timezone change will run from 00:00 the third Sunday 390190372Sedwin# in March until 24:00 of the second Saturday in October. 391190372Sedwin 392190372Sedwin# From Arthur David Olson (2009-03-16): 393190372Sedwin# The unofficial claim at 394190372Sedwin# <a href="http://www.timeanddate.com/news/time/san-luis-new-time-zone.html"> 395190372Sedwin# http://www.timeanddate.com/news/time/san-luis-new-time-zone.html 396190372Sedwin# </a> 397190372Sedwin# is that "The province will most likely follow the next daylight saving schedule, 398190372Sedwin# which is planned for the second Sunday in October." 399190372Sedwin 400197597Sedwin# From Alexander Krivenyshev (2009-09-19): 401197597Sedwin# Some Argentinian Provinces (Buenos Aires, Entre R�os) are opposing to the 402197597Sedwin# Daylight Saving Time for the 2009-2010 season. 403190372Sedwin# 404197597Sedwin# (Spanish) 405197597Sedwin# "El cambio de huso horario en Entre R�os deber� ser aprobado por la 406197597Sedwin# Legislatura": 407197597Sedwin# <a href="http://www.analisisdigital.com.ar/noticias.php?ed=1&di=0&no=110168"> 408197597Sedwin# http://www.analisisdigital.com.ar/noticias.php?ed=1&di=0&no=110168 409197597Sedwin# </a> 410197597Sedwin# English translation - "The time zone change in Entre Rios must be approved by 411197597Sedwin# the Legislature." 412197597Sedwin# 413197597Sedwin# (Spanish) 414197597Sedwin# "Mar del Plata no quiere cambiar la hora." 415197597Sedwin# <a href="http://www.mensajeroweb.com.ar/index.php?x=nota/33861/1/mar-del-plata-no-quiere-cambiar-la-hora"> 416197597Sedwin# http://www.mensajeroweb.com.ar/index.php?x=nota/33861/1/mar-del-plata-no-quiere-cambiar-la-hora 417197597Sedwin# </a> 418197597Sedwin# English translation - "Mar del Plata is not to change the time" 419197597Sedwin# 420197597Sedwin# or 421197597Sedwin# (some English translation) 422197597Sedwin# <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina07.html"> 423197597Sedwin# http://www.worldtimezone.com/dst_news/dst_news_argentina07.html 424197597Sedwin# </a> 425197597Sedwin 426197597Sedwin# From Arthur David Olson (2009-09-22): 427197597Sedwin# "Mar del Plata no quiere cambiar la hora" translates to 428197597Sedwin# "Mar del Plata doesn't want to change the time" 429197597Sedwin# (less definitive than "is not to"). 430197597Sedwin 4312742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 43220094Swollman# 433136638Swollman# Buenos Aires (BA), Capital Federal (CF), 434136638SwollmanZone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 43593799Swollman -4:16:48 - CMT 1920 May # Cordoba Mean Time 43619878Swollman -4:00 - ART 1930 Dec 43758787Sru -4:00 Arg AR%sT 1969 Oct 5 43893799Swollman -3:00 Arg AR%sT 1999 Oct 3 43993799Swollman -4:00 Arg AR%sT 2000 Mar 3 440175034Sedwin -3:00 Arg AR%sT 44120094Swollman# 442184406Sedwin# Cordoba (CB), Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), 443184406Sedwin# Chaco (CC), Formosa (FM), Santiago del Estero (SE) 44420094Swollman# 445158421Swollman# Shanks & Pottenger also make the following claims, which we haven't verified: 44693799Swollman# - Formosa switched to -3:00 on 1991-01-07. 44793799Swollman# - Misiones switched to -3:00 on 1990-12-29. 44893799Swollman# - Chaco switched to -3:00 on 1991-01-04. 44993799Swollman# - Santiago del Estero switched to -4:00 on 1991-04-01, 45093799Swollman# then to -3:00 on 1991-04-26. 45193799Swollman# 452136638SwollmanZone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31 45393799Swollman -4:16:48 - CMT 1920 May 45420094Swollman -4:00 - ART 1930 Dec 45558787Sru -4:00 Arg AR%sT 1969 Oct 5 45693799Swollman -3:00 Arg AR%sT 1991 Mar 3 45793799Swollman -4:00 - WART 1991 Oct 20 45893799Swollman -3:00 Arg AR%sT 1999 Oct 3 45993799Swollman -4:00 Arg AR%sT 2000 Mar 3 460175034Sedwin -3:00 Arg AR%sT 46120094Swollman# 462184406Sedwin# Salta (SA), La Pampa (LP), Neuquen (NQ), Rio Negro (RN) 463184406SedwinZone America/Argentina/Salta -4:21:40 - LMT 1894 Oct 31 464184406Sedwin -4:16:48 - CMT 1920 May 465184406Sedwin -4:00 - ART 1930 Dec 466184406Sedwin -4:00 Arg AR%sT 1969 Oct 5 467184406Sedwin -3:00 Arg AR%sT 1991 Mar 3 468184406Sedwin -4:00 - WART 1991 Oct 20 469184406Sedwin -3:00 Arg AR%sT 1999 Oct 3 470184406Sedwin -4:00 Arg AR%sT 2000 Mar 3 471184406Sedwin -3:00 Arg AR%sT 2008 Oct 18 472184406Sedwin -3:00 - ART 473184406Sedwin# 474136638Swollman# Tucuman (TM) 475136638SwollmanZone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31 476136638Swollman -4:16:48 - CMT 1920 May 477136638Swollman -4:00 - ART 1930 Dec 478136638Swollman -4:00 Arg AR%sT 1969 Oct 5 479136638Swollman -3:00 Arg AR%sT 1991 Mar 3 480136638Swollman -4:00 - WART 1991 Oct 20 481136638Swollman -3:00 Arg AR%sT 1999 Oct 3 482136638Swollman -4:00 Arg AR%sT 2000 Mar 3 483136638Swollman -3:00 - ART 2004 Jun 1 484136638Swollman -4:00 - WART 2004 Jun 13 485175034Sedwin -3:00 Arg AR%sT 486136638Swollman# 487136638Swollman# La Rioja (LR) 488136638SwollmanZone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31 489136638Swollman -4:16:48 - CMT 1920 May 490136638Swollman -4:00 - ART 1930 Dec 491136638Swollman -4:00 Arg AR%sT 1969 Oct 5 492136638Swollman -3:00 Arg AR%sT 1991 Mar 1 493136638Swollman -4:00 - WART 1991 May 7 494136638Swollman -3:00 Arg AR%sT 1999 Oct 3 495136638Swollman -4:00 Arg AR%sT 2000 Mar 3 496136638Swollman -3:00 - ART 2004 Jun 1 497136638Swollman -4:00 - WART 2004 Jun 20 498184406Sedwin -3:00 Arg AR%sT 2008 Oct 18 499184406Sedwin -3:00 - ART 500136638Swollman# 501136638Swollman# San Juan (SJ) 502136638SwollmanZone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31 503136638Swollman -4:16:48 - CMT 1920 May 504136638Swollman -4:00 - ART 1930 Dec 505136638Swollman -4:00 Arg AR%sT 1969 Oct 5 506136638Swollman -3:00 Arg AR%sT 1991 Mar 1 507136638Swollman -4:00 - WART 1991 May 7 508136638Swollman -3:00 Arg AR%sT 1999 Oct 3 509136638Swollman -4:00 Arg AR%sT 2000 Mar 3 510136638Swollman -3:00 - ART 2004 May 31 511136638Swollman -4:00 - WART 2004 Jul 25 512184406Sedwin -3:00 Arg AR%sT 2008 Oct 18 513184406Sedwin -3:00 - ART 514136638Swollman# 51520094Swollman# Jujuy (JY) 516136638SwollmanZone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31 51793799Swollman -4:16:48 - CMT 1920 May 51820094Swollman -4:00 - ART 1930 Dec 51920094Swollman -4:00 Arg AR%sT 1969 Oct 5 52093799Swollman -3:00 Arg AR%sT 1990 Mar 4 52193799Swollman -4:00 - WART 1990 Oct 28 52293799Swollman -4:00 1:00 WARST 1991 Mar 17 52320094Swollman -4:00 - WART 1991 Oct 6 52493799Swollman -3:00 1:00 ARST 1992 52593799Swollman -3:00 Arg AR%sT 1999 Oct 3 52693799Swollman -4:00 Arg AR%sT 2000 Mar 3 527184406Sedwin -3:00 Arg AR%sT 2008 Oct 18 528184406Sedwin -3:00 - ART 52920094Swollman# 530149514Swollman# Catamarca (CT), Chubut (CH) 531136638SwollmanZone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31 53293799Swollman -4:16:48 - CMT 1920 May 53320094Swollman -4:00 - ART 1930 Dec 53458787Sru -4:00 Arg AR%sT 1969 Oct 5 53593799Swollman -3:00 Arg AR%sT 1991 Mar 3 53693799Swollman -4:00 - WART 1991 Oct 20 53793799Swollman -3:00 Arg AR%sT 1999 Oct 3 53893799Swollman -4:00 Arg AR%sT 2000 Mar 3 539136638Swollman -3:00 - ART 2004 Jun 1 540136638Swollman -4:00 - WART 2004 Jun 20 541184406Sedwin -3:00 Arg AR%sT 2008 Oct 18 542184406Sedwin -3:00 - ART 54320094Swollman# 54420094Swollman# Mendoza (MZ) 545136638SwollmanZone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31 54693799Swollman -4:16:48 - CMT 1920 May 54720094Swollman -4:00 - ART 1930 Dec 54820094Swollman -4:00 Arg AR%sT 1969 Oct 5 54993799Swollman -3:00 Arg AR%sT 1990 Mar 4 55093799Swollman -4:00 - WART 1990 Oct 15 55193799Swollman -4:00 1:00 WARST 1991 Mar 1 55220094Swollman -4:00 - WART 1991 Oct 15 55320094Swollman -4:00 1:00 WARST 1992 Mar 1 55420094Swollman -4:00 - WART 1992 Oct 18 55593799Swollman -3:00 Arg AR%sT 1999 Oct 3 55693799Swollman -4:00 Arg AR%sT 2000 Mar 3 557136638Swollman -3:00 - ART 2004 May 23 558136638Swollman -4:00 - WART 2004 Sep 26 559184406Sedwin -3:00 Arg AR%sT 2008 Oct 18 560184406Sedwin -3:00 - ART 561136638Swollman# 562177591Sedwin# San Luis (SL) 563177591SedwinZone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31 564177591Sedwin -4:16:48 - CMT 1920 May 565177591Sedwin -4:00 - ART 1930 Dec 566177591Sedwin -4:00 Arg AR%sT 1969 Oct 5 567181421Sedwin -3:00 Arg AR%sT 1990 568181421Sedwin -3:00 1:00 ARST 1990 Mar 14 569181421Sedwin -4:00 - WART 1990 Oct 15 570181421Sedwin -4:00 1:00 WARST 1991 Mar 1 571181421Sedwin -4:00 - WART 1991 Jun 1 572181421Sedwin -3:00 - ART 1999 Oct 3 573181421Sedwin -4:00 1:00 WARST 2000 Mar 3 574177591Sedwin -3:00 - ART 2004 May 31 575177591Sedwin -4:00 - WART 2004 Jul 25 576177591Sedwin -3:00 Arg AR%sT 2008 Jan 21 577190372Sedwin -3:00 - ART 2009 Mar 15 578190372Sedwin -4:00 Arg WAR%sT 579177591Sedwin# 580136638Swollman# Santa Cruz (SC) 581136638SwollmanZone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 582136638Swollman -4:16:48 - CMT 1920 May # Cordoba Mean Time 583136638Swollman -4:00 - ART 1930 Dec 584136638Swollman -4:00 Arg AR%sT 1969 Oct 5 585136638Swollman -3:00 Arg AR%sT 1999 Oct 3 586136638Swollman -4:00 Arg AR%sT 2000 Mar 3 587136638Swollman -3:00 - ART 2004 Jun 1 588136638Swollman -4:00 - WART 2004 Jun 20 589184406Sedwin -3:00 Arg AR%sT 2008 Oct 18 590184406Sedwin -3:00 - ART 591136638Swollman# 592136638Swollman# Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF) 593136638SwollmanZone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31 594136638Swollman -4:16:48 - CMT 1920 May # Cordoba Mean Time 595136638Swollman -4:00 - ART 1930 Dec 596136638Swollman -4:00 Arg AR%sT 1969 Oct 5 597136638Swollman -3:00 Arg AR%sT 1999 Oct 3 598136638Swollman -4:00 Arg AR%sT 2000 Mar 3 599136638Swollman -3:00 - ART 2004 May 30 600136638Swollman -4:00 - WART 2004 Jun 20 601184406Sedwin -3:00 Arg AR%sT 2008 Oct 18 602184406Sedwin -3:00 - ART 6038029Swollman 60414343Swollman# Aruba 60514343Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 60614343SwollmanZone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad 60719878Swollman -4:30 - ANT 1965 # Netherlands Antilles Time 60814343Swollman -4:00 - AST 60914343Swollman 6102742Swollman# Bolivia 6112742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 6122742SwollmanZone America/La_Paz -4:32:36 - LMT 1890 61386222Swollman -4:32:36 - CMT 1931 Oct 15 # Calamarca MT 61419878Swollman -4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST 61519878Swollman -4:00 - BOT # Bolivia Time 6162742Swollman 6172742Swollman# Brazil 6182742Swollman 619149514Swollman# From Paul Eggert (1993-11-18): 6202742Swollman# The mayor of Rio recently attempted to change the time zone rules 6212742Swollman# just in his city, in order to leave more summer time for the tourist trade. 6222742Swollman# The rule change lasted only part of the day; 6232742Swollman# the federal government refused to follow the city's rules, and business 6242742Swollman# was in a chaos, so the mayor backed down that afternoon. 6252742Swollman 62620094Swollman# From IATA SSIM (1996-02): 62720094Swollman# _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS), 62820094Swollman# Santa Catarina (SC), Parana (PR), Sao Paulo (SP), Rio de Janeiro (RJ), 62920094Swollman# Espirito Santo (ES), Minas Gerais (MG), Bahia (BA), Goias (GO), 63020094Swollman# Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL]. 63120094Swollman# [The last three states are new to this issue of the IATA SSIM.] 63220094Swollman 63320094Swollman# From Gwillim Law (1996-10-07): 63420094Swollman# Geography, history (Tocantins was part of Goias until 1989), and other 63520094Swollman# sources of time zone information lead me to believe that AL, SE, and TO were 63620094Swollman# always in BR1, and so the only change was whether or not they observed DST.... 63720094Swollman# The earliest issue of the SSIM I have is 2/91. Each issue from then until 63820094Swollman# 9/95 says that DST is observed only in the ten states I quoted from 9/95, 63920094Swollman# along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2 64020094Swollman# (UTC-4).... The other two time zones given for Brazil are BR3, which is 64120094Swollman# UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is 64220094Swollman# UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's 64320094Swollman# become part of the state of Pernambuco). The boundary between BR1 and BR2 64420094Swollman# has never been clearly stated. They've simply been called East and West. 64520094Swollman# However, some conclusions can be drawn from another IATA manual: the Airline 64620094Swollman# Coding Directory, which lists close to 400 airports in Brazil. For each 64720094Swollman# airport it gives a time zone which is coded to the SSIM. From that 64820094Swollman# information, I'm led to conclude that the states of Amapa (AP), Ceara (CE), 64920094Swollman# Maranhao (MA), Paraiba (PR), Pernambuco (PE), Piaui (PI), and Rio Grande do 65020094Swollman# Norte (RN), and the eastern part of Para (PA) are all in BR1 without DST. 65120094Swollman 65243014Swollman# From Marcos Tadeu (1998-09-27): 65343014Swollman# <a href="http://pcdsh01.on.br/verao1.html"> 65443014Swollman# Brazilian official page 65543014Swollman# </a> 65675267Swollman 65775267Swollman# From Jesper Norgaard (2000-11-03): 65875267Swollman# [For an official list of which regions in Brazil use which time zones, see:] 65975267Swollman# http://pcdsh01.on.br/Fusbr.htm 66075267Swollman# http://pcdsh01.on.br/Fusbrhv.htm 66175267Swollman 662105196Swollman# From Celso Doria via David Madeo (2002-10-09): 663105196Swollman# The reason for the delay this year has to do with elections in Brazil. 664105196Swollman# 665105196Swollman# Unlike in the United States, elections in Brazil are 100% computerized and 666105196Swollman# the results are known almost immediately. Yesterday, it was the first 667105196Swollman# round of the elections when 115 million Brazilians voted for President, 668105196Swollman# Governor, Senators, Federal Deputies, and State Deputies. Nobody is 669105196Swollman# counting (or re-counting) votes anymore and we know there will be a second 670105196Swollman# round for the Presidency and also for some Governors. The 2nd round will 671105196Swollman# take place on October 27th. 672105196Swollman# 673105196Swollman# The reason why the DST will only begin November 3rd is that the thousands 674105196Swollman# of electoral machines used cannot have their time changed, and since the 675105196Swollman# Constitution says the elections must begin at 8:00 AM and end at 5:00 PM, 676105196Swollman# the Government decided to postpone DST, instead of changing the Constitution 677105196Swollman# (maybe, for the next elections, it will be possible to change the clock)... 678105196Swollman 679136638Swollman# From Rodrigo Severo (2004-10-04): 680136638Swollman# It's just the biannual change made necessary by the much hyped, supposedly 681136638Swollman# modern Brazilian eletronic voting machines which, apparently, can't deal 682136638Swollman# with a time change between the first and the second rounds of the elections. 683136638Swollman 684172479Sedwin# From Steffen Thorsen (2007-09-20): 685172479Sedwin# Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00: 686172479Sedwin# http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975 687172479Sedwin 688181421Sedwin# From Paul Schulze (2008-06-24): 689181421Sedwin# ...by law number 11.662 of April 24, 2008 (published in the "Diario 690181421Sedwin# Oficial da Uniao"...) in Brazil there are changes in the timezones, 691181421Sedwin# effective today (00:00am at June 24, 2008) as follows: 692181421Sedwin# 693181421Sedwin# a) The timezone UTC+5 is e[x]tinguished, with all the Acre state and the 694181421Sedwin# part of the Amazonas state that had this timezone now being put to the 695181421Sedwin# timezone UTC+4 696181421Sedwin# b) The whole Para state now is put at timezone UTC+3, instead of just 697181421Sedwin# part of it, as was before. 698181421Sedwin# 699181421Sedwin# This change follows a proposal of senator Tiao Viana of Acre state, that 700181421Sedwin# proposed it due to concerns about open television channels displaying 701181421Sedwin# programs inappropriate to youths in the states that had the timezone 702181421Sedwin# UTC+5 too early in the night. In the occasion, some more corrections 703181421Sedwin# were proposed, trying to unify the timezones of any given state. This 704181421Sedwin# change modifies timezone rules defined in decree 2.784 of 18 June, 705181421Sedwin# 1913. 706181421Sedwin 707181421Sedwin# From Rodrigo Severo (2008-06-24): 708181421Sedwin# Just correcting the URL: 709192886Sedwin# <a href="https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008"> 710192886Sedwin# https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008 711181421Sedwin# </a> 712181421Sedwin# 713181421Sedwin# As a result of the above Decree I believe the America/Rio_Branco 714181421Sedwin# timezone shall be modified from UTC-5 to UTC-4 and a new timezone shall 715181421Sedwin# be created to represent the the west side of the Para State. I 716181421Sedwin# suggest this new timezone be called Santarem as the most 717181421Sedwin# important/populated city in the affected area. 718181421Sedwin# 719181421Sedwin# This new timezone would be the same as the Rio_Branco timezone up to 720181421Sedwin# the 2008/06/24 change which would be to UTC-3 instead of UTC-4. 721181421Sedwin 722181421Sedwin# From Alex Krivenyshev (2008-06-24): 723181421Sedwin# This is a quick reference page for New and Old Brazil Time Zones map. 724181421Sedwin# <a href="http://www.worldtimezone.com/brazil-time-new-old.php"> 725181421Sedwin# http://www.worldtimezone.com/brazil-time-new-old.php 726181421Sedwin# </a> 727181421Sedwin# 728181421Sedwin# - 4 time zones replaced by 3 time zones-eliminating time zone UTC- 05 729181421Sedwin# (state Acre and the part of the Amazonas will be UTC/GMT- 04) - western 730181421Sedwin# part of Par state is moving to one timezone UTC- 03 (from UTC -04). 731181421Sedwin 732105196Swollman# From Paul Eggert (2002-10-10): 733105196Swollman# The official decrees referenced below are mostly taken from 73443014Swollman# <a href="http://pcdsh01.on.br/DecHV.html"> 73543014Swollman# Decretos sobre o Horario de Verao no Brasil 736163302Sru# </a>. 73743014Swollman 738183066Sedwin# From Steffen Thorsen (2008-08-29): 739183066Sedwin# As announced by the government and many newspapers in Brazil late 740183066Sedwin# yesterday, Brazil will start DST on 2008-10-19 (need to change rule) and 741183066Sedwin# it will end on 2009-02-15 (current rule for Brazil is fine). Based on 742183066Sedwin# past years experience with the elections, there was a good chance that 743183066Sedwin# the start was postponed to November, but it did not happen this year. 744183066Sedwin# 745183066Sedwin# It has not yet been posted to http://pcdsh01.on.br/DecHV.html 746183066Sedwin# 747183066Sedwin# An official page about it: 748183066Sedwin# <a href="http://www.mme.gov.br/site/news/detail.do?newsId=16722"> 749183066Sedwin# http://www.mme.gov.br/site/news/detail.do?newsId=16722 750183066Sedwin# </a> 751183066Sedwin# Note that this link does not always work directly, but must be accessed 752183066Sedwin# by going to 753183536Sedwin# <a href="http://www.mme.gov.br/first"> 754183066Sedwin# http://www.mme.gov.br/first 755183066Sedwin# </a> 756183066Sedwin# 757183066Sedwin# One example link that works directly: 758183066Sedwin# <a href="http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54"> 759183066Sedwin# http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54 760183066Sedwin# (Portuguese) 761183066Sedwin# </a> 762183066Sedwin# 763183066Sedwin# We have a written a short article about it as well: 764183066Sedwin# <a href="http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html"> 765183066Sedwin# http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html 766183066Sedwin# </a> 767183066Sedwin 7682742Swollman# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 76943543Swollman# Decree <a href="http://pcdsh01.on.br/HV20466.htm">20,466</a> (1931-10-01) 77043543Swollman# Decree <a href="http://pcdsh01.on.br/HV21896.htm">21,896</a> (1932-01-10) 77158787SruRule Brazil 1931 only - Oct 3 11:00 1:00 S 77258787SruRule Brazil 1932 1933 - Apr 1 0:00 0 - 77358787SruRule Brazil 1932 only - Oct 3 0:00 1:00 S 77443543Swollman# Decree <a href="http://pcdsh01.on.br/HV23195.htm">23,195</a> (1933-10-10) 77543014Swollman# revoked DST. 77643543Swollman# Decree <a href="http://pcdsh01.on.br/HV27496.htm">27,496</a> (1949-11-24) 77743543Swollman# Decree <a href="http://pcdsh01.on.br/HV27998.htm">27,998</a> (1950-04-13) 77858787SruRule Brazil 1949 1952 - Dec 1 0:00 1:00 S 77958787SruRule Brazil 1950 only - Apr 16 1:00 0 - 78058787SruRule Brazil 1951 1952 - Apr 1 0:00 0 - 78143543Swollman# Decree <a href="http://pcdsh01.on.br/HV32308.htm">32,308</a> (1953-02-24) 78258787SruRule Brazil 1953 only - Mar 1 0:00 0 - 78343543Swollman# Decree <a href="http://pcdsh01.on.br/HV34724.htm">34,724</a> (1953-11-30) 78443014Swollman# revoked DST. 78543543Swollman# Decree <a href="http://pcdsh01.on.br/HV52700.htm">52,700</a> (1963-10-18) 78643543Swollman# established DST from 1963-10-23 00:00 to 1964-02-29 00:00 78743543Swollman# in SP, RJ, GB, MG, ES, due to the prolongation of the drought. 78843543Swollman# Decree <a href="http://pcdsh01.on.br/HV53071.htm">53,071</a> (1963-12-03) 78943543Swollman# extended the above decree to all of the national territory on 12-09. 79058787SruRule Brazil 1963 only - Dec 9 0:00 1:00 S 79143543Swollman# Decree <a href="http://pcdsh01.on.br/HV53604.htm">53,604</a> (1964-02-25) 79243543Swollman# extended summer time by one day to 1964-03-01 00:00 (start of school). 79358787SruRule Brazil 1964 only - Mar 1 0:00 0 - 79443543Swollman# Decree <a href="http://pcdsh01.on.br/HV55639.htm">55,639</a> (1965-01-27) 79558787SruRule Brazil 1965 only - Jan 31 0:00 1:00 S 79658787SruRule Brazil 1965 only - Mar 31 0:00 0 - 79743543Swollman# Decree <a href="http://pcdsh01.on.br/HV57303.htm">57,303</a> (1965-11-22) 79858787SruRule Brazil 1965 only - Dec 1 0:00 1:00 S 79943543Swollman# Decree <a href="http://pcdsh01.on.br/HV57843.htm">57,843</a> (1966-02-18) 80058787SruRule Brazil 1966 1968 - Mar 1 0:00 0 - 80158787SruRule Brazil 1966 1967 - Nov 1 0:00 1:00 S 80243543Swollman# Decree <a href="http://pcdsh01.on.br/HV63429.htm">63,429</a> (1968-10-15) 80343543Swollman# revoked DST. 80443543Swollman# Decree <a href="http://pcdsh01.on.br/HV91698.htm">91,698</a> (1985-09-27) 80558787SruRule Brazil 1985 only - Nov 2 0:00 1:00 S 80643543Swollman# Decree 92,310 (1986-01-21) 80743543Swollman# Decree 92,463 (1986-03-13) 80858787SruRule Brazil 1986 only - Mar 15 0:00 0 - 80943543Swollman# Decree 93,316 (1986-10-01) 81058787SruRule Brazil 1986 only - Oct 25 0:00 1:00 S 81158787SruRule Brazil 1987 only - Feb 14 0:00 0 - 81243543Swollman# Decree <a href="http://pcdsh01.on.br/HV94922.htm">94,922</a> (1987-09-22) 81358787SruRule Brazil 1987 only - Oct 25 0:00 1:00 S 81458787SruRule Brazil 1988 only - Feb 7 0:00 0 - 81543543Swollman# Decree <a href="http://pcdsh01.on.br/HV96676.htm">96,676</a> (1988-09-12) 81643543Swollman# except for the states of AC, AM, PA, RR, RO, and AP (then a territory) 81758787SruRule Brazil 1988 only - Oct 16 0:00 1:00 S 81858787SruRule Brazil 1989 only - Jan 29 0:00 0 - 81943543Swollman# Decree <a href="http://pcdsh01.on.br/HV98077.htm">98,077</a> (1989-08-21) 82043543Swollman# with the same exceptions 82158787SruRule Brazil 1989 only - Oct 15 0:00 1:00 S 82258787SruRule Brazil 1990 only - Feb 11 0:00 0 - 82343543Swollman# Decree <a href="http://pcdsh01.on.br/HV99530.htm">99,530</a> (1990-09-17) 82443543Swollman# adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF. 82543543Swollman# Decree 99,629 (1990-10-19) adds BA, MT. 82658787SruRule Brazil 1990 only - Oct 21 0:00 1:00 S 82758787SruRule Brazil 1991 only - Feb 17 0:00 0 - 82843543Swollman# <a href="http://pcdsh01.on.br/HV1991.htm">Unnumbered decree</a> (1991-09-25) 82943543Swollman# adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF. 83058787SruRule Brazil 1991 only - Oct 20 0:00 1:00 S 83158787SruRule Brazil 1992 only - Feb 9 0:00 0 - 83243543Swollman# <a href="http://pcdsh01.on.br/HV1992.htm">Unnumbered decree</a> (1992-10-16) 83343543Swollman# adopted by same states. 83458787SruRule Brazil 1992 only - Oct 25 0:00 1:00 S 83558787SruRule Brazil 1993 only - Jan 31 0:00 0 - 83643014Swollman# Decree <a href="http://pcdsh01.on.br/HV942.htm">942</a> (1993-09-28) 83743543Swollman# adopted by same states, plus AM. 838136638Swollman# Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22; 839136638Swollman# web page corrected 2004-01-07) adopted by same states, minus AM. 84043543Swollman# Decree <a href="http://pcdsh01.on.br/HV1636.htm">1,636</a> (1995-09-14) 841136638Swollman# adopted by same states, plus MT and TO. 84243543Swollman# Decree <a href="http://pcdsh01.on.br/HV1674.htm">1,674</a> (1995-10-13) 84343543Swollman# adds AL, SE. 84458787SruRule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S 84558787SruRule Brazil 1994 1995 - Feb Sun>=15 0:00 0 - 84658787SruRule Brazil 1996 only - Feb 11 0:00 0 - 84743543Swollman# Decree <a href="http://pcdsh01.on.br/HV2000.htm">2,000</a> (1996-09-04) 84843543Swollman# adopted by same states, minus AL, SE. 84958787SruRule Brazil 1996 only - Oct 6 0:00 1:00 S 85058787SruRule Brazil 1997 only - Feb 16 0:00 0 - 851149514Swollman# From Daniel C. Sobral (1998-02-12): 85243014Swollman# In 1997, the DS began on October 6. The stated reason was that 85343014Swollman# because international television networks ignored Brazil's policy on DS, 85443014Swollman# they bought the wrong times on satellite for coverage of Pope's visit. 85543014Swollman# This year, the ending date of DS was postponed to March 1 85643014Swollman# to help dealing with the shortages of electric power. 85743014Swollman# 85843543Swollman# Decree 2,317 (1997-09-04), adopted by same states. 85958787SruRule Brazil 1997 only - Oct 6 0:00 1:00 S 86043543Swollman# Decree <a href="http://pcdsh01.on.br/figuras/HV2495.JPG">2,495</a> 86143014Swollman# (1998-02-10) 86258787SruRule Brazil 1998 only - Mar 1 0:00 0 - 86343543Swollman# Decree <a href="http://pcdsh01.on.br/figuras/Hv98.jpg">2,780</a> (1998-09-11) 86458787Sru# adopted by the same states as before. 86558787SruRule Brazil 1998 only - Oct 11 0:00 1:00 S 86658787SruRule Brazil 1999 only - Feb 21 0:00 0 - 86758787Sru# Decree <a href="http://pcdsh01.on.br/figuras/HV3150.gif">3,150</a> 86858787Sru# (1999-08-23) adopted by same states. 86958787Sru# Decree <a href="http://pcdsh01.on.br/DecHV99.gif">3,188</a> (1999-09-30) 87067578Swollman# adds SE, AL, PB, PE, RN, CE, PI, MA and RR. 87167578SwollmanRule Brazil 1999 only - Oct 3 0:00 1:00 S 87267578SwollmanRule Brazil 2000 only - Feb 27 0:00 0 - 87367578Swollman# Decree <a href="http://pcdsh01.on.br/DEC3592.htm">3,592</a> (2000-09-06) 87467578Swollman# adopted by the same states as before. 87575267Swollman# Decree <a href="http://pcdsh01.on.br/Dec3630.jpg">3,630</a> (2000-10-13) 87675267Swollman# repeals DST in PE and RR, effective 2000-10-15 00:00. 87775267Swollman# Decree <a href="http://pcdsh01.on.br/Dec3632.jpg">3,632</a> (2000-10-17) 87875267Swollman# repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00. 87986222Swollman# Decree <a href="http://pcdsh01.on.br/figuras/HV3916.gif">3,916</a> 88086222Swollman# (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE. 881105196SwollmanRule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S 882163302SruRule Brazil 2001 2006 - Feb Sun>=15 0:00 0 - 883105196Swollman# Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE. 884181421Sedwin# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm">4,399</a> 885105196SwollmanRule Brazil 2002 only - Nov 3 0:00 1:00 S 886121098Swollman# Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO. 887181421Sedwin# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm">4,844</a> 888136638SwollmanRule Brazil 2003 only - Oct 19 0:00 1:00 S 889136638Swollman# Decree 5,223 (2004-10-01) reestablishes DST in MT. 890181421Sedwin# <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm">5,223</a> 891136638SwollmanRule Brazil 2004 only - Nov 2 0:00 1:00 S 892153670Swollman# Decree <a href="http://pcdsh01.on.br/DecHV5539.gif">5,539</a> (2005-09-19), 893153670Swollman# adopted by the same states as before. 894163302SruRule Brazil 2005 only - Oct 16 0:00 1:00 S 895172479Sedwin# Decree <a href="http://pcdsh01.on.br/DecHV5920.gif">5,920</a> (2006-10-03), 896172479Sedwin# adopted by the same states as before. 897172479SedwinRule Brazil 2006 only - Nov 5 0:00 1:00 S 898172479SedwinRule Brazil 2007 only - Feb 25 0:00 0 - 899181421Sedwin# Decree <a href="http://pcdsh01.on.br/DecHV6212.gif">6,212</a> (2007-09-26), 900181421Sedwin# adopted by the same states as before. 901183066SedwinRule Brazil 2007 only - Oct Sun>=8 0:00 1:00 S 902183536Sedwin# From Frederico A. C. Neves (2008-09-10): 903183536Sedwin# Acording to this decree 904183536Sedwin# <a href="http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm"> 905183536Sedwin# http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm 906183536Sedwin# </a> 907183536Sedwin# [t]he DST period in Brazil now on will be from the 3rd Oct Sunday to the 908183536Sedwin# 3rd Feb Sunday. There is an exception on the return date when this is 909183536Sedwin# the Carnival Sunday then the return date will be the next Sunday... 910183536SedwinRule Brazil 2008 max - Oct Sun>=15 0:00 1:00 S 911183536SedwinRule Brazil 2008 2011 - Feb Sun>=15 0:00 0 - 912183536SedwinRule Brazil 2012 only - Feb Sun>=22 0:00 0 - 913183536SedwinRule Brazil 2013 2014 - Feb Sun>=15 0:00 0 - 914183536SedwinRule Brazil 2015 only - Feb Sun>=22 0:00 0 - 915183536SedwinRule Brazil 2016 2022 - Feb Sun>=15 0:00 0 - 916183536SedwinRule Brazil 2023 only - Feb Sun>=22 0:00 0 - 917183536SedwinRule Brazil 2024 2025 - Feb Sun>=15 0:00 0 - 918183536SedwinRule Brazil 2026 only - Feb Sun>=22 0:00 0 - 919183536SedwinRule Brazil 2027 2033 - Feb Sun>=15 0:00 0 - 920183536SedwinRule Brazil 2034 only - Feb Sun>=22 0:00 0 - 921183536SedwinRule Brazil 2035 2036 - Feb Sun>=15 0:00 0 - 922183536SedwinRule Brazil 2037 only - Feb Sun>=22 0:00 0 - 923183536Sedwin# From Arthur David Olson (2008-09-29): 924183536Sedwin# The next is wrong in some years but is better than nothing. 925183536SedwinRule Brazil 2038 max - Feb Sun>=15 0:00 0 - 926183536Sedwin 927121098Swollman# The latest ruleset listed above says that the following states observe DST: 928136638Swollman# DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP. 92920094Swollman 9302742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 93120094Swollman# 932136638Swollman# Fernando de Noronha (administratively part of PE) 9332742SwollmanZone America/Noronha -2:09:40 - LMT 1914 93458787Sru -2:00 Brazil FN%sT 1990 Sep 17 935136638Swollman -2:00 - FNT 1999 Sep 30 936136638Swollman -2:00 Brazil FN%sT 2000 Oct 15 937136638Swollman -2:00 - FNT 2001 Sep 13 938136638Swollman -2:00 Brazil FN%sT 2002 Oct 1 93958787Sru -2:00 - FNT 940136638Swollman# Other Atlantic islands have no permanent settlement. 941136638Swollman# These include Trindade and Martin Vaz (administratively part of ES), 942136638Swollman# Atol das Rocas (RN), and Penedos de Sao Pedro e Sao Paulo (PE). 943136638Swollman# Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01; 944136638Swollman# it also included the Penedos. 94520094Swollman# 94658787Sru# Amapa (AP), east Para (PA) 94775267Swollman# East Para includes Belem, Maraba, Serra Norte, and Sao Felix do Xingu. 948121098Swollman# The division between east and west Para is the river Xingu. 949121098Swollman# In the north a very small part from the river Javary (now Jari I guess, 950121098Swollman# the border with Amapa) to the Amazon, then to the Xingu. 95143543SwollmanZone America/Belem -3:13:56 - LMT 1914 95258787Sru -3:00 Brazil BR%sT 1988 Sep 12 95358787Sru -3:00 - BRT 95443543Swollman# 955181421Sedwin# west Para (PA) 956181421Sedwin# West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem. 957181421SedwinZone America/Santarem -3:38:48 - LMT 1914 958181421Sedwin -4:00 Brazil AM%sT 1988 Sep 12 959181421Sedwin -4:00 - AMT 2008 Jun 24 00:00 960181421Sedwin -3:00 - BRT 961181421Sedwin# 96258787Sru# Maranhao (MA), Piaui (PI), Ceara (CE), Rio Grande do Norte (RN), 96375267Swollman# Paraiba (PB) 96420094SwollmanZone America/Fortaleza -2:34:00 - LMT 1914 96558787Sru -3:00 Brazil BR%sT 1990 Sep 17 96658787Sru -3:00 - BRT 1999 Sep 30 96775267Swollman -3:00 Brazil BR%sT 2000 Oct 22 96886222Swollman -3:00 - BRT 2001 Sep 13 969105196Swollman -3:00 Brazil BR%sT 2002 Oct 1 970105196Swollman -3:00 - BRT 97120094Swollman# 97275267Swollman# Pernambuco (PE) (except Atlantic islands) 97375267SwollmanZone America/Recife -2:19:36 - LMT 1914 97475267Swollman -3:00 Brazil BR%sT 1990 Sep 17 97575267Swollman -3:00 - BRT 1999 Sep 30 97675267Swollman -3:00 Brazil BR%sT 2000 Oct 15 97786222Swollman -3:00 - BRT 2001 Sep 13 978105196Swollman -3:00 Brazil BR%sT 2002 Oct 1 979105196Swollman -3:00 - BRT 98075267Swollman# 98158787Sru# Tocantins (TO) 98243543SwollmanZone America/Araguaina -3:12:48 - LMT 1914 98358787Sru -3:00 Brazil BR%sT 1990 Sep 17 98458787Sru -3:00 - BRT 1995 Sep 14 985121098Swollman -3:00 Brazil BR%sT 2003 Sep 24 986121098Swollman -3:00 - BRT 98720094Swollman# 98858787Sru# Alagoas (AL), Sergipe (SE) 98943543SwollmanZone America/Maceio -2:22:52 - LMT 1914 99058787Sru -3:00 Brazil BR%sT 1990 Sep 17 99158787Sru -3:00 - BRT 1995 Oct 13 99258787Sru -3:00 Brazil BR%sT 1996 Sep 4 99358787Sru -3:00 - BRT 1999 Sep 30 99475267Swollman -3:00 Brazil BR%sT 2000 Oct 22 99586222Swollman -3:00 - BRT 2001 Sep 13 996105196Swollman -3:00 Brazil BR%sT 2002 Oct 1 997105196Swollman -3:00 - BRT 99843543Swollman# 999121098Swollman# Bahia (BA) 1000121098Swollman# There are too many Salvadors elsewhere, so use America/Bahia instead 1001121098Swollman# of America/Salvador. 1002121098SwollmanZone America/Bahia -2:34:04 - LMT 1914 1003121098Swollman -3:00 Brazil BR%sT 2003 Sep 24 1004121098Swollman -3:00 - BRT 1005121098Swollman# 1006121098Swollman# Goias (GO), Distrito Federal (DF), Minas Gerais (MG), 100758787Sru# Espirito Santo (ES), Rio de Janeiro (RJ), Sao Paulo (SP), Parana (PR), 100858787Sru# Santa Catarina (SC), Rio Grande do Sul (RS) 10092742SwollmanZone America/Sao_Paulo -3:06:28 - LMT 1914 101058787Sru -3:00 Brazil BR%sT 1963 Oct 23 00:00 101158787Sru -3:00 1:00 BRST 1964 101258787Sru -3:00 Brazil BR%sT 101320094Swollman# 1014121098Swollman# Mato Grosso do Sul (MS) 1015121098SwollmanZone America/Campo_Grande -3:38:28 - LMT 1914 101658787Sru -4:00 Brazil AM%sT 101720094Swollman# 1018121098Swollman# Mato Grosso (MT) 1019121098SwollmanZone America/Cuiaba -3:44:20 - LMT 1914 1020121098Swollman -4:00 Brazil AM%sT 2003 Sep 24 1021138323Swollman -4:00 - AMT 2004 Oct 1 1022136638Swollman -4:00 Brazil AM%sT 1023121098Swollman# 1024181421Sedwin# Rondonia (RO) 102543543SwollmanZone America/Porto_Velho -4:15:36 - LMT 1914 102658787Sru -4:00 Brazil AM%sT 1988 Sep 12 102758787Sru -4:00 - AMT 102843543Swollman# 102958787Sru# Roraima (RR) 103058787SruZone America/Boa_Vista -4:02:40 - LMT 1914 103158787Sru -4:00 Brazil AM%sT 1988 Sep 12 103258787Sru -4:00 - AMT 1999 Sep 30 103375267Swollman -4:00 Brazil AM%sT 2000 Oct 15 103475267Swollman -4:00 - AMT 103558787Sru# 103675267Swollman# east Amazonas (AM): Boca do Acre, Jutai, Manaus, Floriano Peixoto 1037121098Swollman# The great circle line from Tabatinga to Porto Acre divides 1038121098Swollman# east from west Amazonas. 10392742SwollmanZone America/Manaus -4:00:04 - LMT 1914 104058787Sru -4:00 Brazil AM%sT 1988 Sep 12 104158787Sru -4:00 - AMT 1993 Sep 28 104258787Sru -4:00 Brazil AM%sT 1994 Sep 22 104358787Sru -4:00 - AMT 104420094Swollman# 104575267Swollman# west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant, 104675267Swollman# Eirunepe, Envira, Ipixuna 104775267SwollmanZone America/Eirunepe -4:39:28 - LMT 1914 104875267Swollman -5:00 Brazil AC%sT 1988 Sep 12 104975267Swollman -5:00 - ACT 1993 Sep 28 105075267Swollman -5:00 Brazil AC%sT 1994 Sep 22 1051181421Sedwin -5:00 - ACT 2008 Jun 24 00:00 1052181421Sedwin -4:00 - AMT 105375267Swollman# 105458787Sru# Acre (AC) 105575267SwollmanZone America/Rio_Branco -4:31:12 - LMT 1914 105658787Sru -5:00 Brazil AC%sT 1988 Sep 12 1057181421Sedwin -5:00 - ACT 2008 Jun 24 00:00 1058181421Sedwin -4:00 - AMT 10592742Swollman 10602742Swollman# Chile 10612742Swollman 106214343Swollman# From Eduardo Krell (1995-10-19): 106314343Swollman# The law says to switch to DST at midnight [24:00] on the second SATURDAY 106414343Swollman# of October.... The law is the same for March and October. 106543014Swollman# (1998-09-29): 106643014Swollman# Because of the drought this year, the government decided to go into 106743014Swollman# DST earlier (saturday 9/26 at 24:00). This is a one-time change only ... 106843014Swollman# (unless there's another dry season next year, I guess). 10692742Swollman 107058787Sru# From Julio I. Pacheco Troncoso (1999-03-18): 107158787Sru# Because of the same drought, the government decided to end DST later, 107258787Sru# on April 3, (one-time change). 107358787Sru 1074169811Swollman# From Oscar van Vlijmen (2006-10-08): 1075169811Swollman# http://www.horaoficial.cl/cambio.htm 107675267Swollman 1077169811Swollman# From Jesper Norgaard Welen (2006-10-08): 1078169811Swollman# I think that there are some obvious mistakes in the suggested link 1079169811Swollman# from Oscar van Vlijmen,... for instance entry 66 says that GMT-4 1080169811Swollman# ended 1990-09-12 while entry 67 only begins GMT-3 at 1990-09-15 1081169811Swollman# (they should have been 1990-09-15 and 1990-09-16 respectively), but 1082169811Swollman# anyhow it clears up some doubts too. 108375267Swollman 1084169811Swollman# From Paul Eggert (2006-12-27): 1085169811Swollman# The following data for Chile and America/Santiago are from 1086169811Swollman# <http://www.horaoficial.cl/horaof.htm> (2006-09-20), transcribed by 1087169811Swollman# Jesper Norgaard Welen. The data for Pacific/Easter are from Shanks 1088169811Swollman# & Pottenger, except with DST transitions after 1932 cloned from 1089169811Swollman# America/Santiago. The pre-1980 Pacific/Easter data are dubious, 1090169811Swollman# but we have no other source. 1091114173Swollman 1092176974Sedwin# From German Poo-Caaman~o (2008-03-03): 1093176974Sedwin# Due to drought, Chile extends Daylight Time in three weeks. This 1094176974Sedwin# is one-time change (Saturday 3/29 at 24:00 for America/Santiago 1095176974Sedwin# and Saturday 3/29 at 22:00 for Pacific/Easter) 1096176974Sedwin# The Supreme Decree is located at 1097176974Sedwin# <a href="http://www.shoa.cl/servicios/supremo316.pdf"> 1098176974Sedwin# http://www.shoa.cl/servicios/supremo316.pdf 1099176974Sedwin# </a> 1100176974Sedwin# and the instructions for 2008 are located in: 1101176974Sedwin# <a href="http://www.horaoficial.cl/cambio.htm"> 1102176974Sedwin# http://www.horaoficial.cl/cambio.htm 1103176974Sedwin# </a>. 1104176974Sedwin 1105181421Sedwin# From Jose Miguel Garrido (2008-03-05): 1106176974Sedwin# ... 1107176974Sedwin# You could see the announces of the change on 1108176974Sedwin# <a href="http://www.shoa.cl/noticias/2008/04hora/hora.htm"> 1109176974Sedwin# http://www.shoa.cl/noticias/2008/04hora/hora.htm 1110176974Sedwin# </a>. 1111176974Sedwin 11122742Swollman# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1113169811SwollmanRule Chile 1927 1932 - Sep 1 0:00 1:00 S 111458787SruRule Chile 1928 1932 - Apr 1 0:00 0 - 1115169811SwollmanRule Chile 1942 only - Jun 1 4:00u 0 - 1116169811SwollmanRule Chile 1942 only - Aug 1 5:00u 1:00 S 1117169811SwollmanRule Chile 1946 only - Jul 15 4:00u 1:00 S 1118169811SwollmanRule Chile 1946 only - Sep 1 3:00u 0:00 - 1119169811SwollmanRule Chile 1947 only - Apr 1 4:00u 0 - 1120169811SwollmanRule Chile 1968 only - Nov 3 4:00u 1:00 S 1121169811SwollmanRule Chile 1969 only - Mar 30 3:00u 0 - 1122169811SwollmanRule Chile 1969 only - Nov 23 4:00u 1:00 S 1123169811SwollmanRule Chile 1970 only - Mar 29 3:00u 0 - 1124169811SwollmanRule Chile 1971 only - Mar 14 3:00u 0 - 1125169811SwollmanRule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 S 1126169811SwollmanRule Chile 1972 1986 - Mar Sun>=9 3:00u 0 - 1127169811SwollmanRule Chile 1973 only - Sep 30 4:00u 1:00 S 1128169811SwollmanRule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S 1129169811SwollmanRule Chile 1987 only - Apr 12 3:00u 0 - 1130169811SwollmanRule Chile 1988 1989 - Mar Sun>=9 3:00u 0 - 1131169811SwollmanRule Chile 1988 only - Oct Sun>=1 4:00u 1:00 S 1132169811SwollmanRule Chile 1989 only - Oct Sun>=9 4:00u 1:00 S 1133169811SwollmanRule Chile 1990 only - Mar 18 3:00u 0 - 1134169811SwollmanRule Chile 1990 only - Sep 16 4:00u 1:00 S 1135169811SwollmanRule Chile 1991 1996 - Mar Sun>=9 3:00u 0 - 1136169811SwollmanRule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S 1137169811SwollmanRule Chile 1997 only - Mar 30 3:00u 0 - 1138169811SwollmanRule Chile 1998 only - Mar Sun>=9 3:00u 0 - 113975267SwollmanRule Chile 1998 only - Sep 27 4:00u 1:00 S 114075267SwollmanRule Chile 1999 only - Apr 4 3:00u 0 - 114175267SwollmanRule Chile 1999 max - Oct Sun>=9 4:00u 1:00 S 1142176974SedwinRule Chile 2000 2007 - Mar Sun>=9 3:00u 0 - 1143176974Sedwin# N.B.: the end of March 29 in Chile is March 30 in Universal time, 1144176974Sedwin# which is used below in specifying the transition. 1145176974SedwinRule Chile 2008 only - Mar 30 3:00u 0 - 1146176974SedwinRule Chile 2009 max - Mar Sun>=9 3:00u 0 - 1147169811Swollman# IATA SSIM anomalies: (1992-02) says 1992-03-14; 114858787Sru# (1996-09) says 1998-03-08. Ignore these. 11492742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1150169811SwollmanZone America/Santiago -4:42:46 - LMT 1890 1151169811Swollman -4:42:46 - SMT 1910 # Santiago Mean Time 1152169811Swollman -5:00 - CLT 1916 Jul 1 # Chile Time 1153169811Swollman -4:42:46 - SMT 1918 Sep 1 # Santiago Mean Time 1154169811Swollman -4:00 - CLT 1919 Jul 1 # Chile Time 1155169811Swollman -4:42:46 - SMT 1927 Sep 1 # Santiago Mean Time 1156169811Swollman -5:00 Chile CL%sT 1947 May 22 # Chile Time 115719878Swollman -4:00 Chile CL%sT 1158169811SwollmanZone Pacific/Easter -7:17:44 - LMT 1890 1159169811Swollman -7:17:28 - EMT 1932 Sep # Easter Mean Time 1160158421Swollman -7:00 Chile EAS%sT 1982 Mar 13 21:00 # Easter I Time 116119878Swollman -6:00 Chile EAS%sT 11622742Swollman# 116386222Swollman# Sala y Gomez Island is like Pacific/Easter. 116486222Swollman# Other Chilean locations, including Juan Fernandez Is, San Ambrosio, 116586222Swollman# San Felix, and Antarctic bases, are like America/Santiago. 11662742Swollman 11672742Swollman# Colombia 116820094Swollman# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1169158421SwollmanRule CO 1992 only - May 3 0:00 1:00 S 1170158421SwollmanRule CO 1993 only - Apr 4 0:00 0 - 11712742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 11722742SwollmanZone America/Bogota -4:56:20 - LMT 1884 Mar 13 117319878Swollman -4:56:20 - BMT 1914 Nov 23 # Bogota Mean Time 117420094Swollman -5:00 CO CO%sT # Colombia Time 11752742Swollman# Malpelo, Providencia, San Andres 11762742Swollman# no information; probably like America/Bogota 11772742Swollman 11782742Swollman# Curacao 1179158421Swollman# 1180169811Swollman# From Paul Eggert (2006-03-22): 1181158421Swollman# Shanks & Pottenger say that The Bottom and Philipsburg have been at 1182158421Swollman# -4:00 since standard time was introduced on 1912-03-02; and that 1183158421Swollman# Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from 1184158421Swollman# 1912-02-02 to 1965-01-01. The former is dubious, since S&P also say 1185158421Swollman# Saba Island has been like Curacao. 1186169811Swollman# This all predates our 1970 cutoff, though. 1187158421Swollman# 1188158421Swollman# By July 2007 Curacao and St Maarten are planned to become 1189158421Swollman# associated states within the Netherlands, much like Aruba; 1190158421Swollman# Bonaire, Saba and St Eustatius would become directly part of the 1191158421Swollman# Netherlands as Kingdom Islands. This won't affect their time zones 1192158421Swollman# though, as far as we know. 1193169811Swollman# 11942742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 11952742SwollmanZone America/Curacao -4:35:44 - LMT 1912 Feb 12 # Willemstad 119619878Swollman -4:30 - ANT 1965 # Netherlands Antilles Time 11972742Swollman -4:00 - AST 11982742Swollman 11992742Swollman# Ecuador 1200169811Swollman# 1201169811Swollman# From Paul Eggert (2007-03-04): 1202169811Swollman# Apparently Ecuador had a failed experiment with DST in 1992. 1203169811Swollman# <http://midena.gov.ec/content/view/1261/208/> (2007-02-27) and 1204169811Swollman# <http://www.hoy.com.ec/NoticiaNue.asp?row_id=249856> (2006-11-06) both 1205169811Swollman# talk about "hora Sixto". Leave this alone for now, as we have no data. 1206169811Swollman# 12072742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 12082742SwollmanZone America/Guayaquil -5:19:20 - LMT 1890 120919878Swollman -5:14:00 - QMT 1931 # Quito Mean Time 121019878Swollman -5:00 - ECT # Ecuador Time 12112742SwollmanZone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno 121219878Swollman -5:00 - ECT 1986 121319878Swollman -6:00 - GALT # Galapagos Time 12142742Swollman 12152742Swollman# Falklands 121675267Swollman 1217158421Swollman# From Paul Eggert (2006-03-22): 1218158421Swollman# Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except 1219158421Swollman# the IATA gives 1996-09-08. Go with Shanks & Pottenger. 122075267Swollman 122175267Swollman# From Falkland Islands Government Office, London (2001-01-22) 122275267Swollman# via Jesper Norgaard: 122375267Swollman# ... the clocks revert back to Local Mean Time at 2 am on Sunday 15 122475267Swollman# April 2001 and advance one hour to summer time at 2 am on Sunday 2 122575267Swollman# September. It is anticipated that the clocks will revert back at 2 122675267Swollman# am on Sunday 21 April 2002 and advance to summer time at 2 am on 122775267Swollman# Sunday 1 September. 122875267Swollman 122975267Swollman# From Rives McDow (2001-02-13): 123075267Swollman# 123175267Swollman# I have communicated several times with people there, and the last 123275267Swollman# time I had communications that was helpful was in 1998. Here is 123375267Swollman# what was said then: 123475267Swollman# 123575267Swollman# "The general rule was that Stanley used daylight saving and the Camp 123675267Swollman# did not. However for various reasons many people in the Camp have 123775267Swollman# started to use daylight saving (known locally as 'Stanley Time') 123875267Swollman# There is no rule as to who uses daylight saving - it is a matter of 123975267Swollman# personal choice and so it is impossible to draw a map showing who 124075267Swollman# uses it and who does not. Any list would be out of date as soon as 124175267Swollman# it was produced. This year daylight saving ended on April 18/19th 124275267Swollman# and started again on September 12/13th. I do not know what the rule 124375267Swollman# is, but can find out if you like. We do not change at the same time 124475267Swollman# as UK or Chile." 124575267Swollman# 124675267Swollman# I did have in my notes that the rule was "Second Saturday in Sep at 124775267Swollman# 0:00 until third Saturday in Apr at 0:00". I think that this does 124875267Swollman# not agree in some cases with Shanks; is this true? 124975267Swollman# 125075267Swollman# Also, there is no mention in the list that some areas in the 125175267Swollman# Falklands do not use DST. I have found in my communications there 125275267Swollman# that these areas are on the western half of East Falkland and all of 125375267Swollman# West Falkland. Stanley is the only place that consistently observes 125475267Swollman# DST. Again, as in other places in the world, the farmers don't like 125575267Swollman# it. West Falkland is almost entirely sheep farmers. 125675267Swollman# 125775267Swollman# I know one lady there that keeps a list of which farm keeps DST and 125875267Swollman# which doesn't each year. She runs a shop in Stanley, and says that 125975267Swollman# the list changes each year. She uses it to communicate to her 126075267Swollman# customers, catching them when they are home for lunch or dinner. 126175267Swollman 126275267Swollman# From Paul Eggert (2001-03-05): 126375267Swollman# For now, we'll just record the time in Stanley, since we have no 126475267Swollman# better info. 126575267Swollman 12662742Swollman# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 126719878SwollmanRule Falk 1937 1938 - Sep lastSun 0:00 1:00 S 126819878SwollmanRule Falk 1938 1942 - Mar Sun>=19 0:00 0 - 126919878SwollmanRule Falk 1939 only - Oct 1 0:00 1:00 S 127019878SwollmanRule Falk 1940 1942 - Sep lastSun 0:00 1:00 S 127119878SwollmanRule Falk 1943 only - Jan 1 0:00 0 - 127219878SwollmanRule Falk 1983 only - Sep lastSun 0:00 1:00 S 127319878SwollmanRule Falk 1984 1985 - Apr lastSun 0:00 0 - 127419878SwollmanRule Falk 1984 only - Sep 16 0:00 1:00 S 127575267SwollmanRule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 S 127675267SwollmanRule Falk 1986 2000 - Apr Sun>=16 0:00 0 - 127775267SwollmanRule Falk 2001 max - Apr Sun>=15 2:00 0 - 127875267SwollmanRule Falk 2001 max - Sep Sun>=1 2:00 1:00 S 12792742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 12802742SwollmanZone Atlantic/Stanley -3:51:24 - LMT 1890 128119878Swollman -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time 128219878Swollman -4:00 Falk FK%sT 1983 May # Falkland Is Time 128319878Swollman -3:00 Falk FK%sT 1985 Sep 15 128419878Swollman -4:00 Falk FK%sT 12852742Swollman 12862742Swollman# French Guiana 12872742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 12882742SwollmanZone America/Cayenne -3:29:20 - LMT 1911 Jul 128919878Swollman -4:00 - GFT 1967 Oct # French Guiana Time 129019878Swollman -3:00 - GFT 12912742Swollman 12922742Swollman# Guyana 12932742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 12942742SwollmanZone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown 129519878Swollman -3:45 - GBGT 1966 May 26 # Br Guiana Time 129619878Swollman -3:45 - GYT 1975 Jul 31 # Guyana Time 129720094Swollman -3:00 - GYT 1991 129820094Swollman# IATA SSIM (1996-06) says -4:00. Assume a 1991 switch. 129920094Swollman -4:00 - GYT 13002742Swollman 13012742Swollman# Paraguay 1302158421Swollman# From Paul Eggert (2006-03-22): 1303158421Swollman# Shanks & Pottenger say that spring transitions are from 01:00 -> 02:00, 1304158421Swollman# and autumn transitions are from 00:00 -> 23:00. Go with pre-1999 130558787Sru# editions of Shanks, and with the IATA, who say transitions occur at 00:00. 13062742Swollman# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 130758787SruRule Para 1975 1988 - Oct 1 0:00 1:00 S 130819878SwollmanRule Para 1975 1978 - Mar 1 0:00 0 - 130958787SruRule Para 1979 1991 - Apr 1 0:00 0 - 131019878SwollmanRule Para 1989 only - Oct 22 0:00 1:00 S 131120094SwollmanRule Para 1990 only - Oct 1 0:00 1:00 S 131220094SwollmanRule Para 1991 only - Oct 6 0:00 1:00 S 131320094SwollmanRule Para 1992 only - Mar 1 0:00 0 - 131420094SwollmanRule Para 1992 only - Oct 5 0:00 1:00 S 131520094SwollmanRule Para 1993 only - Mar 31 0:00 0 - 131630711SwollmanRule Para 1993 1995 - Oct 1 0:00 1:00 S 131720094SwollmanRule Para 1994 1995 - Feb lastSun 0:00 0 - 131858787SruRule Para 1996 only - Mar 1 0:00 0 - 131975267Swollman# IATA SSIM (2000-02) says 1999-10-10; ignore this for now. 132067578Swollman# From Steffen Thorsen (2000-10-02): 132167578Swollman# I have three independent reports that Paraguay changed to DST this Sunday 132267578Swollman# (10-01). 132375267Swollman# 132475267Swollman# Translated by Gwillim Law (2001-02-27) from 132575267Swollman# <a href="http://www.diarionoticias.com.py/011000/nacional/naciona1.htm"> 132675267Swollman# Noticias, a daily paper in Asuncion, Paraguay (2000-10-01) 132775267Swollman# </a>: 132875267Swollman# Starting at 0:00 today, the clock will be set forward 60 minutes, in 132975267Swollman# fulfillment of Decree No. 7,273 of the Executive Power.... The time change 133075267Swollman# system has been operating for several years. Formerly there was a separate 133175267Swollman# decree each year; the new law has the same effect, but permanently. Every 133275267Swollman# year, the time will change on the first Sunday of October; likewise, the 133375267Swollman# clock will be set back on the first Sunday of March. 133475267Swollman# 133593799SwollmanRule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S 1336158421Swollman# IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger. 133775267SwollmanRule Para 1997 only - Feb lastSun 0:00 0 - 1338158421Swollman# Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but 133975267Swollman# (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27). 134093799SwollmanRule Para 1998 2001 - Mar Sun>=1 0:00 0 - 134193799Swollman# From Rives McDow (2002-02-28): 134293799Swollman# A decree was issued in Paraguay (no. 16350) on 2002-02-26 that changed the 134393799Swollman# dst method to be from the first Sunday in September to the first Sunday in 134493799Swollman# April. 1345149514SwollmanRule Para 2002 2004 - Apr Sun>=1 0:00 0 - 1346149514SwollmanRule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S 1347149514Swollman# 1348149514Swollman# From Jesper Norgaard Welen (2005-01-02): 1349149514Swollman# There are several sources that claim that Paraguay made 1350149514Swollman# a timezone rule change in autumn 2004. 1351149514Swollman# From Steffen Thorsen (2005-01-05): 1352169811Swollman# Decree 1,867 (2004-03-05) 1353169811Swollman# From Carlos Raul Perasso via Jesper Norgaard Welen (2006-10-13) 1354169811Swollman# <http://www.presidencia.gov.py/decretos/D1867.pdf> 1355149514SwollmanRule Para 2004 max - Oct Sun>=15 0:00 1:00 S 1356149514SwollmanRule Para 2005 max - Mar Sun>=8 0:00 0 - 135775267Swollman 13582742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 13592742SwollmanZone America/Asuncion -3:50:40 - LMT 1890 136019878Swollman -3:50:40 - AMT 1931 Oct 10 # Asuncion Mean Time 136119878Swollman -4:00 - PYT 1972 Oct # Paraguay Time 136219878Swollman -3:00 - PYT 1974 Apr 136319878Swollman -4:00 Para PY%sT 13642742Swollman 13652742Swollman# Peru 1366136638Swollman# 1367136638Swollman# <a href="news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net"> 1368136638Swollman# From Evelyn C. Leeper via Mark Brader (2003-10-26):</a> 1369149514Swollman# When we were in Peru in 1985-1986, they apparently switched over 1370136638Swollman# sometime between December 29 and January 3 while we were on the Amazon. 1371136638Swollman# 1372158421Swollman# From Paul Eggert (2006-03-22): 1373158421Swollman# Shanks & Pottenger don't have this transition. Assume 1986 was like 1987. 1374136638Swollman 13752742Swollman# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 137619878SwollmanRule Peru 1938 only - Jan 1 0:00 1:00 S 137719878SwollmanRule Peru 1938 only - Apr 1 0:00 0 - 137819878SwollmanRule Peru 1938 1939 - Sep lastSun 0:00 1:00 S 137919878SwollmanRule Peru 1939 1940 - Mar Sun>=24 0:00 0 - 1380136638SwollmanRule Peru 1986 1987 - Jan 1 0:00 1:00 S 1381136638SwollmanRule Peru 1986 1987 - Apr 1 0:00 0 - 138219878SwollmanRule Peru 1990 only - Jan 1 0:00 1:00 S 138319878SwollmanRule Peru 1990 only - Apr 1 0:00 0 - 1384158421Swollman# IATA is ambiguous for 1993/1995; go with Shanks & Pottenger. 138558787SruRule Peru 1994 only - Jan 1 0:00 1:00 S 138658787SruRule Peru 1994 only - Apr 1 0:00 0 - 13872742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 13882742SwollmanZone America/Lima -5:08:12 - LMT 1890 138986222Swollman -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time? 139019878Swollman -5:00 Peru PE%sT # Peru Time 13912742Swollman 13922742Swollman# South Georgia 13932742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 13942742SwollmanZone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken 139519878Swollman -2:00 - GST # South Georgia Time 13962742Swollman 13972742Swollman# South Sandwich Is 139858787Sru# uninhabited; scientific personnel have wintered 13992742Swollman 14002742Swollman# Suriname 14012742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 14022742SwollmanZone America/Paramaribo -3:40:40 - LMT 1911 14032742Swollman -3:40:52 - PMT 1935 # Paramaribo Mean Time 14042742Swollman -3:40:36 - PMT 1945 Oct # The capital moved? 140519878Swollman -3:30 - NEGT 1975 Nov 20 # Dutch Guiana Time 140619878Swollman -3:30 - SRT 1984 Oct # Suriname Time 140719878Swollman -3:00 - SRT 14082742Swollman 14092742Swollman# Trinidad and Tobago 14102742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 14112742SwollmanZone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 14122742Swollman -4:00 - AST 14132742Swollman 14142742Swollman# Uruguay 1415149514Swollman# From Paul Eggert (1993-11-18): 14162742Swollman# Uruguay wins the prize for the strangest peacetime manipulation of the rules. 1417158421Swollman# From Shanks & Pottenger: 14182742Swollman# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1419158421Swollman# Whitman gives 1923 Oct 1; go with Shanks & Pottenger. 142019878SwollmanRule Uruguay 1923 only - Oct 2 0:00 0:30 HS 142119878SwollmanRule Uruguay 1924 1926 - Apr 1 0:00 0 - 142219878SwollmanRule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS 142319878SwollmanRule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS 1424158421Swollman# Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman. 142519878SwollmanRule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 - 142619878SwollmanRule Uruguay 1936 only - Nov 1 0:00 0:30 HS 142719878SwollmanRule Uruguay 1937 1941 - Mar lastSun 0:00 0 - 1428158421Swollman# Whitman gives 1937 Oct 3; go with Shanks & Pottenger. 142919878SwollmanRule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS 14302742Swollman# Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13, 1431158421Swollman# and 1943 Apr 13 ``to present time''; go with Shanks & Pottenger. 1432158421SwollmanRule Uruguay 1941 only - Aug 1 0:00 0:30 HS 1433158421SwollmanRule Uruguay 1942 only - Jan 1 0:00 0 - 143419878SwollmanRule Uruguay 1942 only - Dec 14 0:00 1:00 S 143519878SwollmanRule Uruguay 1943 only - Mar 14 0:00 0 - 143619878SwollmanRule Uruguay 1959 only - May 24 0:00 1:00 S 143719878SwollmanRule Uruguay 1959 only - Nov 15 0:00 0 - 143819878SwollmanRule Uruguay 1960 only - Jan 17 0:00 1:00 S 143919878SwollmanRule Uruguay 1960 only - Mar 6 0:00 0 - 144019878SwollmanRule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S 144119878SwollmanRule Uruguay 1965 only - Sep 26 0:00 0 - 144219878SwollmanRule Uruguay 1966 1967 - Oct 31 0:00 0 - 144319878SwollmanRule Uruguay 1968 1970 - May 27 0:00 0:30 HS 144419878SwollmanRule Uruguay 1968 1970 - Dec 2 0:00 0 - 144519878SwollmanRule Uruguay 1972 only - Apr 24 0:00 1:00 S 144619878SwollmanRule Uruguay 1972 only - Aug 15 0:00 0 - 144719878SwollmanRule Uruguay 1974 only - Mar 10 0:00 0:30 HS 144819878SwollmanRule Uruguay 1974 only - Dec 22 0:00 1:00 S 144919878SwollmanRule Uruguay 1976 only - Oct 1 0:00 0 - 145019878SwollmanRule Uruguay 1977 only - Dec 4 0:00 1:00 S 145119878SwollmanRule Uruguay 1978 only - Apr 1 0:00 0 - 145219878SwollmanRule Uruguay 1979 only - Oct 1 0:00 1:00 S 145319878SwollmanRule Uruguay 1980 only - May 1 0:00 0 - 145419878SwollmanRule Uruguay 1987 only - Dec 14 0:00 1:00 S 145519878SwollmanRule Uruguay 1988 only - Mar 14 0:00 0 - 145619878SwollmanRule Uruguay 1988 only - Dec 11 0:00 1:00 S 145719878SwollmanRule Uruguay 1989 only - Mar 12 0:00 0 - 145819878SwollmanRule Uruguay 1989 only - Oct 29 0:00 1:00 S 1459158421Swollman# Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2, 146058787Sru# and that 1992/3's DST was from 10-25 to 03-01. Go with IATA. 146120094SwollmanRule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 - 146220094SwollmanRule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S 146330711SwollmanRule Uruguay 1992 only - Oct 18 0:00 1:00 S 146420094SwollmanRule Uruguay 1993 only - Feb 28 0:00 0 - 1465136638Swollman# From Eduardo Cota (2004-09-20): 1466136638Swollman# The uruguayan government has decreed a change in the local time.... 1467136638Swollman# http://www.presidencia.gub.uy/decretos/2004091502.htm 1468149514SwollmanRule Uruguay 2004 only - Sep 19 0:00 1:00 S 1469149514Swollman# From Steffen Thorsen (2005-03-11): 1470149514Swollman# Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to 1471149514Swollman# save energy ... it was postponed two weeks.... 1472149514Swollman# http://www.presidencia.gub.uy/_Web/noticias/2005/03/2005031005.htm 1473149514SwollmanRule Uruguay 2005 only - Mar 27 2:00 0 - 1474153670Swollman# From Eduardo Cota (2005-09-27): 1475153670Swollman# http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005_00001.PDF 1476153670Swollman# This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at 1477153670Swollman# 02:00 local time, official time in Uruguay will be at GMT -2. 1478153670SwollmanRule Uruguay 2005 only - Oct 9 2:00 1:00 S 1479153670SwollmanRule Uruguay 2006 only - Mar 12 2:00 0 - 1480163302Sru# From Jesper Norgaard Welen (2006-09-06): 1481163302Sru# http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDF 1482163302SruRule Uruguay 2006 max - Oct Sun>=1 2:00 1:00 S 1483163302SruRule Uruguay 2007 max - Mar Sun>=8 2:00 0 - 14842742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 14852742SwollmanZone America/Montevideo -3:44:44 - LMT 1898 Jun 28 148619878Swollman -3:44:44 - MMT 1920 May 1 # Montevideo MT 148719878Swollman -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time 148819878Swollman -3:00 Uruguay UY%sT 14892742Swollman 14902742Swollman# Venezuela 1491172479Sedwin# 1492174242Sedwin# From John Stainforth (2007-11-28): 1493174242Sedwin# ... the change for Venezuela originally expected for 2007-12-31 has 1494174242Sedwin# been brought forward to 2007-12-09. The official announcement was 1495174242Sedwin# published today in the "Gaceta Oficial de la Republica Bolivariana 1496174242Sedwin# de Venezuela, numero 38.819" (official document for all laws or 1497174242Sedwin# resolution publication) 1498174242Sedwin# http://www.globovision.com/news.php?nid=72208 1499172479Sedwin 15002742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 15012742SwollmanZone America/Caracas -4:27:44 - LMT 1890 150286222Swollman -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time? 150319878Swollman -4:30 - VET 1965 # Venezuela Time 1504174242Sedwin -4:00 - VET 2007 Dec 9 03:00 1505172479Sedwin -4:30 - VET 1506