1192886Sedwin# This file is in the public domain, so clarified as of 2192886Sedwin# 2009-05-17 by Arthur David Olson. 364499Swollman 4309568Sglebius# This file is by no means authoritative; if you think you know better, 52742Swollman# go ahead and edit the file (and please send any changes to 6309568Sglebius# tz@iana.org for general use in the future). For more, please see 7309568Sglebius# the file CONTRIBUTING in the tz distribution. 82742Swollman 9309568Sglebius# From Paul Eggert (2014-10-31): 10309568Sglebius# 11309568Sglebius# Unless otherwise specified, the source for data through 1990 is: 12158421Swollman# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition), 13158421Swollman# San Diego: ACS Publications, Inc. (2003). 14309568Sglebius# Unfortunately this book contains many errors and cites no sources. 152742Swollman# 1686222Swollman# Gwillim Law writes that a good source 1720094Swollman# for recent time zone data is the International Air Transport 1820094Swollman# Association's Standard Schedules Information Manual (IATA SSIM), 1920094Swollman# published semiannually. Law sent in several helpful summaries 20309568Sglebius# of the IATA's data after 1990. Except where otherwise noted, 21309568Sglebius# IATA SSIM is the source for entries after 1990. 2220094Swollman# 23309568Sglebius# For data circa 1899, a common source is: 24309568Sglebius# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94. 25309568Sglebius# http://www.jstor.org/stable/1774359 2620094Swollman# 2719878Swollman# Earlier editions of these tables used the North American style (e.g. ARST and 2819878Swollman# ARDT for Argentine Standard and Daylight Time), but the following quote 2919878Swollman# suggests that it's better to use European style (e.g. ART and ARST). 3019878Swollman# I suggest the use of _Summer time_ instead of the more cumbersome 3119878Swollman# _daylight-saving time_. _Summer time_ seems to be in general use 3219878Swollman# in Europe and South America. 33309568Sglebius# -- E O Cutler, _New York Times_ (1937-02-14), quoted in 3419878Swollman# H L Mencken, _The American Language: Supplement I_ (1960), p 466 3558787Sru# 3658787Sru# Earlier editions of these tables also used the North American style 3758787Sru# for time zones in Brazil, but this was incorrect, as Brazilians say 38273438Sdelphij# "summer time". Reinaldo Goulart, a S��o Paulo businessman active in 3958787Sru# the railroad sector, writes (1999-07-06): 4058787Sru# The subject of time zones is currently a matter of discussion/debate in 41273438Sdelphij# Brazil. Let's say that "the Bras��lia time" is considered the 42273438Sdelphij# "official time" because Bras��lia is the capital city. 43273438Sdelphij# The other three time zones are called "Bras��lia time "minus one" or 4458787Sru# "plus one" or "plus two". As far as I know there is no such 4558787Sru# name/designation as "Eastern Time" or "Central Time". 4658787Sru# So I invented the following (English-language) abbreviations for now. 4758787Sru# Corrections are welcome! 4858787Sru# std dst 4958787Sru# -2:00 FNT FNST Fernando de Noronha 50273438Sdelphij# -3:00 BRT BRST Bras��lia 5158787Sru# -4:00 AMT AMST Amazon 5258787Sru# -5:00 ACT ACST Acre 532742Swollman 542742Swollman############################################################################### 552742Swollman 562742Swollman############################################################################### 572742Swollman 582742Swollman# Argentina 592742Swollman 6019878Swollman# From Bob Devine (1988-01-28): 612742Swollman# Argentina: first Sunday in October to first Sunday in April since 1976. 622742Swollman# Double Summer time from 1969 to 1974. Switches at midnight. 632742Swollman 64273438Sdelphij# From U. S. Naval Observatory (1988-01-19): 652742Swollman# ARGENTINA 3 H BEHIND UTC 662742Swollman 67149514Swollman# From Hernan G. Otero (1995-06-26): 6821217Swollman# I am sending modifications to the Argentine time zone table... 699908Swollman# AR was chosen because they are the ISO letters that represent Argentina. 709908Swollman 712742Swollman# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 7219878SwollmanRule Arg 1930 only - Dec 1 0:00 1:00 S 7319878SwollmanRule Arg 1931 only - Apr 1 0:00 0 - 7419878SwollmanRule Arg 1931 only - Oct 15 0:00 1:00 S 7519878SwollmanRule Arg 1932 1940 - Mar 1 0:00 0 - 7619878SwollmanRule Arg 1932 1939 - Nov 1 0:00 1:00 S 7719878SwollmanRule Arg 1940 only - Jul 1 0:00 1:00 S 7819878SwollmanRule Arg 1941 only - Jun 15 0:00 0 - 7919878SwollmanRule Arg 1941 only - Oct 15 0:00 1:00 S 8019878SwollmanRule Arg 1943 only - Aug 1 0:00 0 - 8119878SwollmanRule Arg 1943 only - Oct 15 0:00 1:00 S 8219878SwollmanRule Arg 1946 only - Mar 1 0:00 0 - 8319878SwollmanRule Arg 1946 only - Oct 1 0:00 1:00 S 8419878SwollmanRule Arg 1963 only - Oct 1 0:00 0 - 8519878SwollmanRule Arg 1963 only - Dec 15 0:00 1:00 S 8619878SwollmanRule Arg 1964 1966 - Mar 1 0:00 0 - 8719878SwollmanRule Arg 1964 1966 - Oct 15 0:00 1:00 S 8893799SwollmanRule Arg 1967 only - Apr 2 0:00 0 - 8958787SruRule Arg 1967 1968 - Oct Sun>=1 0:00 1:00 S 9058787SruRule Arg 1968 1969 - Apr Sun>=1 0:00 0 - 9119878SwollmanRule Arg 1974 only - Jan 23 0:00 1:00 S 9219878SwollmanRule Arg 1974 only - May 1 0:00 0 - 9319878SwollmanRule Arg 1988 only - Dec 1 0:00 1:00 S 949908Swollman# 95149514Swollman# From Hernan G. Otero (1995-06-26): 969908Swollman# These corrections were contributed by InterSoft Argentina S.A., 979908Swollman# obtaining the data from the: 98273438Sdelphij# Talleres de Hidrograf��a Naval Argentina 9921217Swollman# (Argentine Naval Hydrography Institute) 10019878SwollmanRule Arg 1989 1993 - Mar Sun>=1 0:00 0 - 10119878SwollmanRule Arg 1989 1992 - Oct Sun>=15 0:00 1:00 S 1029908Swollman# 103149514Swollman# From Hernan G. Otero (1995-06-26): 1049908Swollman# From this moment on, the law that mandated the daylight saving 1059908Swollman# time corrections was derogated and no more modifications 1069908Swollman# to the time zones (for daylight saving) are now made. 1079908Swollman# 10858787Sru# From Rives McDow (2000-01-10): 10958787Sru# On October 3, 1999, 0:00 local, Argentina implemented daylight savings time, 11058787Sru# which did not result in the switch of a time zone, as they stayed 9 hours 11164499Swollman# from the International Date Line. 11264499SwollmanRule Arg 1999 only - Oct Sun>=1 0:00 1:00 S 113175034Sedwin# From Paul Eggert (2007-12-28): 114175034Sedwin# DST was set to expire on March 5, not March 3, but since it was converted 115175034Sedwin# to standard time on March 3 it's more convenient for us to pretend that 116175034Sedwin# it ended on March 3. 117175034SedwinRule Arg 2000 only - Mar 3 0:00 0 - 11858787Sru# 11958787Sru# From Peter Gradelski via Steffen Thorsen (2000-03-01): 120273438Sdelphij# We just checked with our S��o Paulo office and they say the government of 12158787Sru# Argentina decided not to become one of the countries that go on or off DST. 12258787Sru# So Buenos Aires should be -3 hours from GMT at all times. 12358787Sru# 124273438Sdelphij# From Fabi��n L. Arce Jofr�� (2000-04-04): 12564499Swollman# The law that claimed DST for Argentina was derogated by President Fernando 126273438Sdelphij# de la R��a on March 2, 2000, because it would make people spend more energy 12764499Swollman# in the winter time, rather than less. The change took effect on March 3. 12864499Swollman# 12986222Swollman# From Mariano Absatz (2001-06-06): 13086222Swollman# one of the major newspapers here in Argentina said that the 1999 13186222Swollman# Timezone Law (which never was effectively applied) will (would?) be 13286222Swollman# in effect.... The article is at 13386222Swollman# http://ar.clarin.com/diario/2001-06-06/e-01701.htm 134309568Sglebius# ... The Law itself is "Ley No. 25155", sanctioned on 1999-08-25, enacted 13586222Swollman# 1999-09-17, and published 1999-09-21. The official publication is at: 13686222Swollman# http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF 13786222Swollman# Regretfully, you have to subscribe (and pay) for the on-line version.... 13886222Swollman# 13986222Swollman# (2001-06-12): 14086222Swollman# the timezone for Argentina will not change next Sunday. 14186222Swollman# Apparently it will do so on Sunday 24th.... 14286222Swollman# http://ar.clarin.com/diario/2001-06-12/s-03501.htm 14386222Swollman# 14486222Swollman# (2001-06-25): 14586222Swollman# Last Friday (yes, the last working day before the date of the change), the 14686222Swollman# Senate annulled the 1999 law that introduced the changes later postponed. 14786222Swollman# http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm 14886222Swollman# It remains the vote of the Deputies..., but it will be the same.... 14986222Swollman# This kind of things had always been done this way in Argentina. 15086222Swollman# We are still -03:00 all year round in all of the country. 15186222Swollman# 152175034Sedwin# From Steffen Thorsen (2007-12-21): 153175034Sedwin# A user (Leonardo Chaim) reported that Argentina will adopt DST.... 154175034Sedwin# all of the country (all Zone-entries) are affected. News reports like 155175034Sedwin# http://www.lanacion.com.ar/opinion/nota.asp?nota_id=973037 indicate 156175034Sedwin# that Argentina will use DST next year as well, from October to 157175034Sedwin# March, although exact rules are not given. 158175034Sedwin# 159273438Sdelphij# From Jesper N��rgaard Welen (2007-12-26) 160175034Sedwin# The last hurdle of Argentina DST is over, the proposal was approved in 161273438Sdelphij# the lower chamber too (Diputados) with a vote 192 for and 2 against. 162175034Sedwin# By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to 163175034Sedwin# the original scanned proposal, where the dates and the zero hours are 164175034Sedwin# clear and unambiguous...This is the article about final approval: 165175034Sedwin# http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996 166175034Sedwin# 167175034Sedwin# From Paul Eggert (2007-12-22): 168175034Sedwin# For dates after mid-2008, the following rules are my guesses and 169175034Sedwin# are quite possibly wrong, but are more likely than no DST at all. 170183066Sedwin 171183066Sedwin# From Alexander Krivenyshev (2008-09-05): 172183066Sedwin# As per message from Carlos Alberto Fonseca Arauz (Nicaragua), 173183066Sedwin# Argentina will start DST on Sunday October 19, 2008. 174183066Sedwin# 175183066Sedwin# http://www.worldtimezone.com/dst_news/dst_news_argentina03.html 176183066Sedwin# http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish) 177183066Sedwin 178309568Sglebius# From Juan Manuel Docile in https://bugs.gentoo.org/240339 (2008-10-07) 179309568Sglebius# via Rodrigo Severo: 180309568Sglebius# Argentinian law No. 25.155 is no longer valid. 181183864Sedwin# http://www.infoleg.gov.ar/infolegInternet/anexos/60000-64999/60036/norma.htm 182309568Sglebius# The new one is law No. 26.350 183183864Sedwin# http://www.infoleg.gov.ar/infolegInternet/anexos/135000-139999/136191/norma.htm 184183864Sedwin# So there is no summer time in Argentina for now. 185183864Sedwin 186184406Sedwin# From Mariano Absatz (2008-10-20): 187309568Sglebius# Decree 1693/2008 applies Law 26.350 for the summer 2008/2009 establishing DST 188309568Sglebius# in Argentina from 2008-10-19 until 2009-03-15. 189184406Sedwin# http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=16102008&pi=3&pf=4&s=0&sec=01 190184406Sedwin# 191273438Sdelphij 192273438Sdelphij# Decree 1705/2008 excepting 12 Provinces from applying DST in the summer 193273438Sdelphij# 2008/2009: Catamarca, La Rioja, Mendoza, Salta, San Juan, San Luis, La 194273438Sdelphij# Pampa, Neuqu��n, Rio Negro, Chubut, Santa Cruz and Tierra del Fuego 195184406Sedwin# http://www.boletinoficial.gov.ar/Bora.Portal/CustomControls/PdfContent.aspx?fp=17102008&pi=1&pf=1&s=0&sec=01 196184406Sedwin# 197309568Sglebius# Press release 235 dated Saturday October 18th, from the Government of the 198309568Sglebius# Province of Jujuy saying it will not apply DST either (even when it was not 199309568Sglebius# included in Decree 1705/2008). 200184406Sedwin# http://www.jujuy.gov.ar/index2/partes_prensa/18_10_08/235-181008.doc 201184406Sedwin 202198515Sedwin# From fullinet (2009-10-18): 203198515Sedwin# As announced in 204198515Sedwin# http://www.argentina.gob.ar/argentina/portal/paginas.dhtml?pagina=356 205309568Sglebius# (an official .gob.ar) under title: "Sin Cambio de Hora" 206309568Sglebius# (English: "No hour change"). 207198515Sedwin# 208273438Sdelphij# "Por el momento, el Gobierno Nacional resolvi�� no modificar la hora 209273438Sdelphij# oficial, decisi��n que estaba en estudio para su implementaci��n el 210273438Sdelphij# domingo 18 de octubre. Desde el Ministerio de Planificaci��n se anunci�� 211273438Sdelphij# que la Argentina hoy, en estas condiciones meteorol��gicas, no necesita 212273438Sdelphij# la modificaci��n del huso horario, ya que 2009 nos encuentra con 213273438Sdelphij# crecimiento en la producci��n y distribuci��n energ��tica." 214198515Sedwin 215175034SedwinRule Arg 2007 only - Dec 30 0:00 1:00 S 216198515SedwinRule Arg 2008 2009 - Mar Sun>=15 0:00 0 - 217198515SedwinRule Arg 2008 only - Oct Sun>=15 0:00 1:00 S 218240461Sedwin 219136638Swollman# From Mariano Absatz (2004-05-21): 220136638Swollman# Today it was officially published that the Province of Mendoza is changing 221136638Swollman# its timezone this winter... starting tomorrow night.... 222136638Swollman# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf 223136638Swollman# From Paul Eggert (2004-05-24): 224136638Swollman# It's Law No. 7,210. This change is due to a public power emergency, so for 225136638Swollman# now we'll assume it's for this year only. 22693799Swollman# 227309568Sglebius# From Paul Eggert (2014-08-09): 228309568Sglebius# Hora de verano para la Rep��blica Argentina 229309568Sglebius# http://buenasiembra.com.ar/esoterismo/astrologia/hora-de-verano-de-la-republica-argentina-27.html 230273438Sdelphij# says that standard time in Argentina from 1894-10-31 23193799Swollman# to 1920-05-01 was -4:16:48.25. Go with this more-precise value 232158421Swollman# over Shanks & Pottenger. 233136638Swollman# 234136638Swollman# From Mariano Absatz (2004-06-05): 235136638Swollman# These media articles from a major newspaper mostly cover the current state: 236136638Swollman# http://www.lanacion.com.ar/04/05/27/de_604825.asp 237136638Swollman# http://www.lanacion.com.ar/04/05/28/de_605203.asp 238136638Swollman# 239136638Swollman# The following eight (8) provinces pulled clocks back to UTC-04:00 at 240136638Swollman# midnight Monday May 31st. (that is, the night between 05/31 and 06/01). 241136638Swollman# Apparently, all nine provinces would go back to UTC-03:00 at the same 242136638Swollman# time in October 17th. 243136638Swollman# 244136638Swollman# Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz, 245273438Sdelphij# Tierra del Fuego, Tucum��n. 246136638Swollman# 247136638Swollman# From Mariano Absatz (2004-06-14): 248273438Sdelphij# ... this weekend, the Province of Tucum��n decided it'd go back to UTC-03:00 249136638Swollman# yesterday midnight (that is, at 24:00 Saturday 12th), since the people's 250136638Swollman# annoyance with the change is much higher than the power savings obtained.... 251136638Swollman# 252136638Swollman# From Gwillim Law (2004-06-14): 253136638Swollman# http://www.lanacion.com.ar/04/06/10/de_609078.asp ... 254136638Swollman# "The time change in Tierra del Fuego was a conflicted decision from 255136638Swollman# the start. The government had decreed that the measure would take 256136638Swollman# effect on June 1, but a normative error forced the new time to begin 257136638Swollman# three days earlier, from a Saturday to a Sunday.... 258136638Swollman# Our understanding was that the change was originally scheduled to take place 259136638Swollman# on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other 260136638Swollman# provinces). Sunday was May 30, only two days earlier. So the article 261136638Swollman# contains a contradiction. I would give more credence to the Saturday/Sunday 262136638Swollman# date than the "three days earlier" phrase, and conclude that Tierra del 263136638Swollman# Fuego set its clocks back at 2004-05-30 00:00. 264136638Swollman# 265136638Swollman# From Steffen Thorsen (2004-10-05): 266136638Swollman# The previous law 7210 which changed the province of Mendoza's time zone 267136638Swollman# back in May have been modified slightly in a new law 7277, which set the 268136638Swollman# new end date to 2004-09-26 (original date was 2004-10-17). 269136638Swollman# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf 270136638Swollman# 271136638Swollman# From Mariano Absatz (2004-10-05): 272136638Swollman# San Juan changed from UTC-03:00 to UTC-04:00 at midnight between 273136638Swollman# Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00 274136638Swollman# at midnight between Saturday, July 24th and Sunday, July 25th.... 275136638Swollman# http://www.sanjuan.gov.ar/prensa/archivo/000329.html 276136638Swollman# http://www.sanjuan.gov.ar/prensa/archivo/000426.html 277136638Swollman# http://www.sanjuan.gov.ar/prensa/archivo/000441.html 27893799Swollman 279177591Sedwin# From Alex Krivenyshev (2008-01-17): 280177591Sedwin# Here are articles that Argentina Province San Luis is planning to end DST 281177591Sedwin# as earlier as upcoming Monday January 21, 2008 or February 2008: 282177591Sedwin# 283273438Sdelphij# Provincia argentina retrasa reloj y marca diferencia con resto del pa��s 284177591Sedwin# (Argentine Province delayed clock and mark difference with the rest of the 285177591Sedwin# country) 286177591Sedwin# http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel 287177591Sedwin# 288177591Sedwin# Es inminente que en San Luis atrasen una hora los relojes 289177591Sedwin# (It is imminent in San Luis clocks one hour delay) 290273438Sdelphij# http://www.lagaceta.com.ar/nota/253414/Economia/Es-inminente-que-en-San-Luis-atrasen-una-hora-los-relojes.html 291177591Sedwin# http://www.worldtimezone.net/dst_news/dst_news_argentina02.html 292177591Sedwin 293273438Sdelphij# From Jesper N��rgaard Welen (2008-01-18): 294177591Sedwin# The page of the San Luis provincial government 295177591Sedwin# http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812 296177591Sedwin# confirms what Alex Krivenyshev has earlier sent to the tz 297177591Sedwin# emailing list about that San Luis plans to return to standard 298177591Sedwin# time much earlier than the rest of the country. It also 299240461Sedwin# confirms that upon request the provinces San Juan and Mendoza 300240461Sedwin# refused to follow San Luis in this change. 301240461Sedwin# 302309568Sglebius# The change is supposed to take place Monday the 21st at 0:00 303177591Sedwin# hours. As far as I understand it if this goes ahead, we need 304177591Sedwin# a new timezone for San Luis (although there are also documented 305177591Sedwin# independent changes in the southamerica file of San Luis in 306177591Sedwin# 1990 and 1991 which has not been confirmed). 307177591Sedwin 308273438Sdelphij# From Jesper N��rgaard Welen (2008-01-25): 309177591Sedwin# Unfortunately the below page has become defunct, about the San Luis 310177591Sedwin# time change. Perhaps because it now is part of a group of pages "Most 311177591Sedwin# important pages of 2008." 312177591Sedwin# 313177591Sedwin# You can use 314177591Sedwin# http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834 315177591Sedwin# instead it seems. Or use "Buscador" from the main page of the San Luis 316177591Sedwin# government, and fill in "huso" and click OK, and you will get 3 pages 317177591Sedwin# from which the first one is identical to the above. 318177591Sedwin 319177591Sedwin# From Mariano Absatz (2008-01-28): 320177591Sedwin# I can confirm that the Province of San Luis (and so far only that 321177591Sedwin# province) decided to go back to UTC-3 effective midnight Jan 20th 2008 322177591Sedwin# (that is, Monday 21st at 0:00 is the time the clocks were delayed back 323177591Sedwin# 1 hour), and they intend to keep UTC-3 as their timezone all year round 324177591Sedwin# (that is, unless they change their mind any minute now). 325177591Sedwin# 326177591Sedwin# So we'll have to add yet another city to 'southamerica' (I think San 327177591Sedwin# Luis city is the mos populated city in the Province, so it'd be 328177591Sedwin# America/Argentina/San_Luis... of course I can't remember if San Luis's 329177591Sedwin# history of particular changes goes along with Mendoza or San Juan :-( 330177591Sedwin# (I only remember not being able to collect hard facts about San Luis 331177591Sedwin# back in 2004, when these provinces changed to UTC-4 for a few days, I 332177591Sedwin# mailed them personally and never got an answer). 333177591Sedwin 334309568Sglebius# From Paul Eggert (2014-08-12): 335309568Sglebius# Unless otherwise specified, data entries are from Shanks & Pottenger through 336309568Sglebius# 1992, from the IATA otherwise. As noted below, Shanks & Pottenger say that 337181421Sedwin# America/Cordoba split into 6 subregions during 1991/1992, one of which 338181421Sedwin# was America/San_Luis, but we haven't verified this yet so for now we'll 339181421Sedwin# keep America/Cordoba a single region rather than splitting it into the 340181421Sedwin# other 5 subregions. 341181421Sedwin 342190372Sedwin# From Mariano Absatz (2009-03-13): 343190372Sedwin# Yesterday (with our usual 2-day notice) the Province of San Luis 344190372Sedwin# decided that next Sunday instead of "staying" @utc-03:00 they will go 345190372Sedwin# to utc-04:00 until the second Saturday in October... 34693799Swollman# 347190372Sedwin# The press release is at 348190372Sedwin# http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102 349273438Sdelphij# (I couldn't find the decree, but www.sanluis.gov.ar 350273438Sdelphij# is the official page for the Province Government.) 351190372Sedwin# 352248310Sedwin# There's also a note in only one of the major national papers ... 353190372Sedwin# http://www.lanacion.com.ar/nota.asp?nota_id=1107912 354240461Sedwin# 355248310Sedwin# The press release says [quick and dirty translation]: 356248310Sedwin# ... announced that next Sunday, at 00:00, Puntanos (the San Luis 357190372Sedwin# inhabitants) will have to turn back one hour their clocks 358190372Sedwin# 359190372Sedwin# Since then, San Luis will establish its own Province timezone. Thus, 360190372Sedwin# during 2009, this timezone change will run from 00:00 the third Sunday 361190372Sedwin# in March until 24:00 of the second Saturday in October. 362190372Sedwin 363198515Sedwin# From Mariano Absatz (2009-10-16): 364198515Sedwin# ...the Province of San Luis is a case in itself. 365190372Sedwin# 366198515Sedwin# The Law at 367198515Sedwin# http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276 368198515Sedwin# is ambiguous because establishes a calendar from the 2nd Sunday in 369198515Sedwin# October at 0:00 thru the 2nd Saturday in March at 24:00 and the 370198515Sedwin# complement of that starting on the 2nd Sunday of March at 0:00 and 371198515Sedwin# ending on the 2nd Saturday of March at 24:00. 372197597Sedwin# 373198515Sedwin# This clearly breaks every time the 1st of March or October is a Sunday. 374197597Sedwin# 375198515Sedwin# IMHO, the "spirit of the Law" is to make the changes at 0:00 on the 2nd 376198515Sedwin# Sunday of October and March. 377198515Sedwin# 378198515Sedwin# The problem is that the changes in the rest of the Provinces that did 379198515Sedwin# change in 2007/2008, were made according to the Federal Law and Decrees 380198515Sedwin# that did so on the 3rd Sunday of October and March. 381198515Sedwin# 382198515Sedwin# In fact, San Luis actually switched from UTC-4 to UTC-3 last Sunday 383198515Sedwin# (October 11th) at 0:00. 384198515Sedwin# 385198515Sedwin# So I guess a new set of rules, besides "Arg", must be made and the last 386198515Sedwin# America/Argentina/San_Luis entries should change to use these... 387198515Sedwin# 388198515Sedwin# I'm enclosing a patch that does what I say... regretfully, the San Luis 389198515Sedwin# timezone must be called "WART/WARST" even when most of the time (like, 390198515Sedwin# right now) WARST == ART... that is, since last Sunday, all the country 391198515Sedwin# is using UTC-3, but in my patch, San Luis calls it "WARST" and the rest 392198515Sedwin# of the country calls it "ART". 393198515Sedwin# ... 394197597Sedwin 395206868Sedwin# From Alexander Krivenyshev (2010-04-09): 396309568Sglebius# According to news reports from El Diario de la Rep��blica Province San 397206868Sedwin# Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time 398273438Sdelphij# after April 11, 2010 - will continue to have same time as rest of 399206868Sedwin# Argentina (UTC-3) (no DST). 400206868Sedwin# 401273438Sdelphij# Confirmaron la pr��rroga del huso horario de verano (Spanish) 402206868Sedwin# http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9 403206868Sedwin# or (some English translation): 404206868Sedwin# http://www.worldtimezone.com/dst_news/dst_news_argentina08.html 405206868Sedwin 406206868Sedwin# From Mariano Absatz (2010-04-12): 407206868Sedwin# yes...I can confirm this...and given that San Luis keeps calling 408206868Sedwin# UTC-03:00 "summer time", we should't just let San Luis go back to "Arg" 409206868Sedwin# rules...San Luis is still using "Western ARgentina Time" and it got 410206868Sedwin# stuck on Summer daylight savings time even though the summer is over. 411206868Sedwin 412257682Sedwin# From Paul Eggert (2013-09-05): 413309568Sglebius# Perhaps San Luis operates on the legal fiction that it is at -04 414257682Sedwin# with perpetual summer time, but ordinary usage typically seems to 415309568Sglebius# just say it's at -03; see, for example, 416309568Sglebius# http://es.wikipedia.org/wiki/Hora_oficial_argentina 417257682Sedwin# We've documented similar situations as being plain changes to 418257682Sedwin# standard time, so let's do that here too. This does not change UTC 419257682Sedwin# offsets, only tm_isdst and the time zone abbreviations. One minor 420257682Sedwin# plus is that this silences a zic complaint that there's no POSIX TZ 421257682Sedwin# setting for time stamps past 2038. 422257682Sedwin 423248310Sedwin# From Paul Eggert (2013-02-21): 424273438Sdelphij# Milne says C��rdoba time was -4:16:48.2. Round to the nearest second. 425248310Sedwin 4262742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 42720094Swollman# 428136638Swollman# Buenos Aires (BA), Capital Federal (CF), 429309568SglebiusZone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 430309568Sglebius -4:16:48 - CMT 1920 May # C��rdoba Mean Time 43119878Swollman -4:00 - ART 1930 Dec 43258787Sru -4:00 Arg AR%sT 1969 Oct 5 43393799Swollman -3:00 Arg AR%sT 1999 Oct 3 43493799Swollman -4:00 Arg AR%sT 2000 Mar 3 435175034Sedwin -3:00 Arg AR%sT 43620094Swollman# 437273438Sdelphij# C��rdoba (CB), Santa Fe (SF), Entre R��os (ER), Corrientes (CN), Misiones (MN), 438184406Sedwin# Chaco (CC), Formosa (FM), Santiago del Estero (SE) 43920094Swollman# 440158421Swollman# Shanks & Pottenger also make the following claims, which we haven't verified: 44193799Swollman# - Formosa switched to -3:00 on 1991-01-07. 44293799Swollman# - Misiones switched to -3:00 on 1990-12-29. 44393799Swollman# - Chaco switched to -3:00 on 1991-01-04. 44493799Swollman# - Santiago del Estero switched to -4:00 on 1991-04-01, 44593799Swollman# then to -3:00 on 1991-04-26. 44693799Swollman# 447136638SwollmanZone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31 44893799Swollman -4:16:48 - CMT 1920 May 44920094Swollman -4:00 - ART 1930 Dec 45058787Sru -4:00 Arg AR%sT 1969 Oct 5 45193799Swollman -3:00 Arg AR%sT 1991 Mar 3 45293799Swollman -4:00 - WART 1991 Oct 20 45393799Swollman -3:00 Arg AR%sT 1999 Oct 3 45493799Swollman -4:00 Arg AR%sT 2000 Mar 3 455175034Sedwin -3:00 Arg AR%sT 45620094Swollman# 457273438Sdelphij# Salta (SA), La Pampa (LP), Neuqu��n (NQ), Rio Negro (RN) 458184406SedwinZone America/Argentina/Salta -4:21:40 - LMT 1894 Oct 31 459184406Sedwin -4:16:48 - CMT 1920 May 460184406Sedwin -4:00 - ART 1930 Dec 461184406Sedwin -4:00 Arg AR%sT 1969 Oct 5 462184406Sedwin -3:00 Arg AR%sT 1991 Mar 3 463184406Sedwin -4:00 - WART 1991 Oct 20 464184406Sedwin -3:00 Arg AR%sT 1999 Oct 3 465184406Sedwin -4:00 Arg AR%sT 2000 Mar 3 466184406Sedwin -3:00 Arg AR%sT 2008 Oct 18 467184406Sedwin -3:00 - ART 468184406Sedwin# 469273438Sdelphij# Tucum��n (TM) 470136638SwollmanZone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31 471136638Swollman -4:16:48 - CMT 1920 May 472136638Swollman -4:00 - ART 1930 Dec 473136638Swollman -4:00 Arg AR%sT 1969 Oct 5 474136638Swollman -3:00 Arg AR%sT 1991 Mar 3 475136638Swollman -4:00 - WART 1991 Oct 20 476136638Swollman -3:00 Arg AR%sT 1999 Oct 3 477136638Swollman -4:00 Arg AR%sT 2000 Mar 3 478136638Swollman -3:00 - ART 2004 Jun 1 479136638Swollman -4:00 - WART 2004 Jun 13 480175034Sedwin -3:00 Arg AR%sT 481136638Swollman# 482136638Swollman# La Rioja (LR) 483136638SwollmanZone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31 484136638Swollman -4:16:48 - CMT 1920 May 485136638Swollman -4:00 - ART 1930 Dec 486136638Swollman -4:00 Arg AR%sT 1969 Oct 5 487136638Swollman -3:00 Arg AR%sT 1991 Mar 1 488136638Swollman -4:00 - WART 1991 May 7 489136638Swollman -3:00 Arg AR%sT 1999 Oct 3 490136638Swollman -4:00 Arg AR%sT 2000 Mar 3 491136638Swollman -3:00 - ART 2004 Jun 1 492136638Swollman -4:00 - WART 2004 Jun 20 493184406Sedwin -3:00 Arg AR%sT 2008 Oct 18 494184406Sedwin -3:00 - ART 495136638Swollman# 496136638Swollman# San Juan (SJ) 497136638SwollmanZone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31 498136638Swollman -4:16:48 - CMT 1920 May 499136638Swollman -4:00 - ART 1930 Dec 500136638Swollman -4:00 Arg AR%sT 1969 Oct 5 501136638Swollman -3:00 Arg AR%sT 1991 Mar 1 502136638Swollman -4:00 - WART 1991 May 7 503136638Swollman -3:00 Arg AR%sT 1999 Oct 3 504136638Swollman -4:00 Arg AR%sT 2000 Mar 3 505136638Swollman -3:00 - ART 2004 May 31 506136638Swollman -4:00 - WART 2004 Jul 25 507184406Sedwin -3:00 Arg AR%sT 2008 Oct 18 508184406Sedwin -3:00 - ART 509136638Swollman# 51020094Swollman# Jujuy (JY) 511136638SwollmanZone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31 51293799Swollman -4:16:48 - CMT 1920 May 51320094Swollman -4:00 - ART 1930 Dec 51420094Swollman -4:00 Arg AR%sT 1969 Oct 5 51593799Swollman -3:00 Arg AR%sT 1990 Mar 4 51693799Swollman -4:00 - WART 1990 Oct 28 51793799Swollman -4:00 1:00 WARST 1991 Mar 17 51820094Swollman -4:00 - WART 1991 Oct 6 51993799Swollman -3:00 1:00 ARST 1992 52093799Swollman -3:00 Arg AR%sT 1999 Oct 3 52193799Swollman -4:00 Arg AR%sT 2000 Mar 3 522184406Sedwin -3:00 Arg AR%sT 2008 Oct 18 523184406Sedwin -3:00 - ART 52420094Swollman# 525149514Swollman# Catamarca (CT), Chubut (CH) 526136638SwollmanZone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31 52793799Swollman -4:16:48 - CMT 1920 May 52820094Swollman -4:00 - ART 1930 Dec 52958787Sru -4:00 Arg AR%sT 1969 Oct 5 53093799Swollman -3:00 Arg AR%sT 1991 Mar 3 53193799Swollman -4:00 - WART 1991 Oct 20 53293799Swollman -3:00 Arg AR%sT 1999 Oct 3 53393799Swollman -4:00 Arg AR%sT 2000 Mar 3 534136638Swollman -3:00 - ART 2004 Jun 1 535136638Swollman -4:00 - WART 2004 Jun 20 536184406Sedwin -3:00 Arg AR%sT 2008 Oct 18 537184406Sedwin -3:00 - ART 53820094Swollman# 53920094Swollman# Mendoza (MZ) 540136638SwollmanZone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31 54193799Swollman -4:16:48 - CMT 1920 May 54220094Swollman -4:00 - ART 1930 Dec 54320094Swollman -4:00 Arg AR%sT 1969 Oct 5 54493799Swollman -3:00 Arg AR%sT 1990 Mar 4 54593799Swollman -4:00 - WART 1990 Oct 15 54693799Swollman -4:00 1:00 WARST 1991 Mar 1 54720094Swollman -4:00 - WART 1991 Oct 15 54820094Swollman -4:00 1:00 WARST 1992 Mar 1 54920094Swollman -4:00 - WART 1992 Oct 18 55093799Swollman -3:00 Arg AR%sT 1999 Oct 3 55193799Swollman -4:00 Arg AR%sT 2000 Mar 3 552136638Swollman -3:00 - ART 2004 May 23 553136638Swollman -4:00 - WART 2004 Sep 26 554184406Sedwin -3:00 Arg AR%sT 2008 Oct 18 555184406Sedwin -3:00 - ART 556136638Swollman# 557177591Sedwin# San Luis (SL) 558198515Sedwin 559206868SedwinRule SanLuis 2008 2009 - Mar Sun>=8 0:00 0 - 560257682SedwinRule SanLuis 2007 2008 - Oct Sun>=8 0:00 1:00 S 561198515Sedwin 562177591SedwinZone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31 563177591Sedwin -4:16:48 - CMT 1920 May 564177591Sedwin -4:00 - ART 1930 Dec 565177591Sedwin -4:00 Arg AR%sT 1969 Oct 5 566181421Sedwin -3:00 Arg AR%sT 1990 567181421Sedwin -3:00 1:00 ARST 1990 Mar 14 568181421Sedwin -4:00 - WART 1990 Oct 15 569181421Sedwin -4:00 1:00 WARST 1991 Mar 1 570181421Sedwin -4:00 - WART 1991 Jun 1 571181421Sedwin -3:00 - ART 1999 Oct 3 572181421Sedwin -4:00 1:00 WARST 2000 Mar 3 573177591Sedwin -3:00 - ART 2004 May 31 574177591Sedwin -4:00 - WART 2004 Jul 25 575177591Sedwin -3:00 Arg AR%sT 2008 Jan 21 576257682Sedwin -4:00 SanLuis WAR%sT 2009 Oct 11 577257682Sedwin -3:00 - ART 578177591Sedwin# 579136638Swollman# Santa Cruz (SC) 580309568SglebiusZone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31 581309568Sglebius -4:16:48 - CMT 1920 May # C��rdoba Mean Time 582136638Swollman -4:00 - ART 1930 Dec 583136638Swollman -4:00 Arg AR%sT 1969 Oct 5 584136638Swollman -3:00 Arg AR%sT 1999 Oct 3 585136638Swollman -4:00 Arg AR%sT 2000 Mar 3 586136638Swollman -3:00 - ART 2004 Jun 1 587136638Swollman -4:00 - WART 2004 Jun 20 588184406Sedwin -3:00 Arg AR%sT 2008 Oct 18 589184406Sedwin -3:00 - ART 590136638Swollman# 591273438Sdelphij# Tierra del Fuego, Ant��rtida e Islas del Atl��ntico Sur (TF) 592309568SglebiusZone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31 593309568Sglebius -4:16:48 - CMT 1920 May # C��rdoba Mean Time 594136638Swollman -4:00 - ART 1930 Dec 595136638Swollman -4:00 Arg AR%sT 1969 Oct 5 596136638Swollman -3:00 Arg AR%sT 1999 Oct 3 597136638Swollman -4:00 Arg AR%sT 2000 Mar 3 598136638Swollman -3:00 - ART 2004 May 30 599136638Swollman -4:00 - WART 2004 Jun 20 600184406Sedwin -3:00 Arg AR%sT 2008 Oct 18 601184406Sedwin -3:00 - ART 6028029Swollman 60314343Swollman# Aruba 604257682SedwinLink America/Curacao America/Aruba 60514343Swollman 6062742Swollman# Bolivia 6072742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 6082742SwollmanZone America/La_Paz -4:32:36 - LMT 1890 60986222Swollman -4:32:36 - CMT 1931 Oct 15 # Calamarca MT 61019878Swollman -4:32:36 1:00 BOST 1932 Mar 21 # Bolivia ST 61119878Swollman -4:00 - BOT # Bolivia Time 6122742Swollman 6132742Swollman# Brazil 6142742Swollman 615149514Swollman# From Paul Eggert (1993-11-18): 6162742Swollman# The mayor of Rio recently attempted to change the time zone rules 6172742Swollman# just in his city, in order to leave more summer time for the tourist trade. 6182742Swollman# The rule change lasted only part of the day; 6192742Swollman# the federal government refused to follow the city's rules, and business 6202742Swollman# was in a chaos, so the mayor backed down that afternoon. 6212742Swollman 62220094Swollman# From IATA SSIM (1996-02): 62320094Swollman# _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS), 624273438Sdelphij# Santa Catarina (SC), Paran�� (PR), S��o Paulo (SP), Rio de Janeiro (RJ), 625273438Sdelphij# Esp��rito Santo (ES), Minas Gerais (MG), Bahia (BA), Goi��s (GO), 62620094Swollman# Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL]. 62720094Swollman# [The last three states are new to this issue of the IATA SSIM.] 62820094Swollman 62920094Swollman# From Gwillim Law (1996-10-07): 630273438Sdelphij# Geography, history (Tocantins was part of Goi��s until 1989), and other 63120094Swollman# sources of time zone information lead me to believe that AL, SE, and TO were 63220094Swollman# always in BR1, and so the only change was whether or not they observed DST.... 63320094Swollman# The earliest issue of the SSIM I have is 2/91. Each issue from then until 63420094Swollman# 9/95 says that DST is observed only in the ten states I quoted from 9/95, 63520094Swollman# along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2 63620094Swollman# (UTC-4).... The other two time zones given for Brazil are BR3, which is 63720094Swollman# UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is 63820094Swollman# UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's 63920094Swollman# become part of the state of Pernambuco). The boundary between BR1 and BR2 64020094Swollman# has never been clearly stated. They've simply been called East and West. 64120094Swollman# However, some conclusions can be drawn from another IATA manual: the Airline 64220094Swollman# Coding Directory, which lists close to 400 airports in Brazil. For each 64320094Swollman# airport it gives a time zone which is coded to the SSIM. From that 644273438Sdelphij# information, I'm led to conclude that the states of Amap�� (AP), Cear�� (CE), 645273438Sdelphij# Maranh��o (MA), Para��ba (PR), Pernambuco (PE), Piau�� (PI), and Rio Grande do 646273438Sdelphij# Norte (RN), and the eastern part of Par�� (PA) are all in BR1 without DST. 64720094Swollman 64843014Swollman# From Marcos Tadeu (1998-09-27): 649273438Sdelphij# Brazilian official page <http://pcdsh01.on.br/verao1.html> 65075267Swollman 651273438Sdelphij# From Jesper N��rgaard (2000-11-03): 65275267Swollman# [For an official list of which regions in Brazil use which time zones, see:] 65375267Swollman# http://pcdsh01.on.br/Fusbr.htm 65475267Swollman# http://pcdsh01.on.br/Fusbrhv.htm 65575267Swollman 656105196Swollman# From Celso Doria via David Madeo (2002-10-09): 657105196Swollman# The reason for the delay this year has to do with elections in Brazil. 658105196Swollman# 659105196Swollman# Unlike in the United States, elections in Brazil are 100% computerized and 660105196Swollman# the results are known almost immediately. Yesterday, it was the first 661105196Swollman# round of the elections when 115 million Brazilians voted for President, 662105196Swollman# Governor, Senators, Federal Deputies, and State Deputies. Nobody is 663105196Swollman# counting (or re-counting) votes anymore and we know there will be a second 664105196Swollman# round for the Presidency and also for some Governors. The 2nd round will 665105196Swollman# take place on October 27th. 666105196Swollman# 667105196Swollman# The reason why the DST will only begin November 3rd is that the thousands 668105196Swollman# of electoral machines used cannot have their time changed, and since the 669105196Swollman# Constitution says the elections must begin at 8:00 AM and end at 5:00 PM, 670105196Swollman# the Government decided to postpone DST, instead of changing the Constitution 671105196Swollman# (maybe, for the next elections, it will be possible to change the clock)... 672105196Swollman 673136638Swollman# From Rodrigo Severo (2004-10-04): 674136638Swollman# It's just the biannual change made necessary by the much hyped, supposedly 675136638Swollman# modern Brazilian eletronic voting machines which, apparently, can't deal 676136638Swollman# with a time change between the first and the second rounds of the elections. 677136638Swollman 678172479Sedwin# From Steffen Thorsen (2007-09-20): 679172479Sedwin# Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00: 680172479Sedwin# http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F0285210913513DA?newsId=13975 681172479Sedwin 682181421Sedwin# From Paul Schulze (2008-06-24): 683181421Sedwin# ...by law number 11.662 of April 24, 2008 (published in the "Diario 684273438Sdelphij# Oficial da Uni��o"...) in Brazil there are changes in the timezones, 685181421Sedwin# effective today (00:00am at June 24, 2008) as follows: 686181421Sedwin# 687309568Sglebius# a) The timezone UTC+5 is extinguished, with all the Acre state and the 688181421Sedwin# part of the Amazonas state that had this timezone now being put to the 689181421Sedwin# timezone UTC+4 690273438Sdelphij# b) The whole Par�� state now is put at timezone UTC+3, instead of just 691181421Sedwin# part of it, as was before. 692181421Sedwin# 693181421Sedwin# This change follows a proposal of senator Tiao Viana of Acre state, that 694181421Sedwin# proposed it due to concerns about open television channels displaying 695181421Sedwin# programs inappropriate to youths in the states that had the timezone 696181421Sedwin# UTC+5 too early in the night. In the occasion, some more corrections 697181421Sedwin# were proposed, trying to unify the timezones of any given state. This 698181421Sedwin# change modifies timezone rules defined in decree 2.784 of 18 June, 699181421Sedwin# 1913. 700181421Sedwin 701181421Sedwin# From Rodrigo Severo (2008-06-24): 702181421Sedwin# Just correcting the URL: 703192886Sedwin# https://www.in.gov.br/imprensa/visualiza/index.jsp?jornal=do&secao=1&pagina=1&data=25/04/2008 704181421Sedwin# 705181421Sedwin# As a result of the above Decree I believe the America/Rio_Branco 706181421Sedwin# timezone shall be modified from UTC-5 to UTC-4 and a new timezone shall 707273438Sdelphij# be created to represent the...west side of the Par�� State. I 708181421Sedwin# suggest this new timezone be called Santarem as the most 709181421Sedwin# important/populated city in the affected area. 710181421Sedwin# 711181421Sedwin# This new timezone would be the same as the Rio_Branco timezone up to 712181421Sedwin# the 2008/06/24 change which would be to UTC-3 instead of UTC-4. 713181421Sedwin 714181421Sedwin# From Alex Krivenyshev (2008-06-24): 715181421Sedwin# This is a quick reference page for New and Old Brazil Time Zones map. 716181421Sedwin# http://www.worldtimezone.com/brazil-time-new-old.php 717181421Sedwin# 718273438Sdelphij# - 4 time zones replaced by 3 time zones - eliminating time zone UTC-05 719273438Sdelphij# (state Acre and the part of the Amazonas will be UTC/GMT-04) - western 720273438Sdelphij# part of Par state is moving to one timezone UTC-03 (from UTC-04). 721181421Sedwin 722105196Swollman# From Paul Eggert (2002-10-10): 723105196Swollman# The official decrees referenced below are mostly taken from 724309568Sglebius# Decretos sobre o Hor��rio de Ver��o no Brasil. 725309568Sglebius# http://pcdsh01.on.br/DecHV.html 72643014Swollman 727183066Sedwin# From Steffen Thorsen (2008-08-29): 728183066Sedwin# As announced by the government and many newspapers in Brazil late 729183066Sedwin# yesterday, Brazil will start DST on 2008-10-19 (need to change rule) and 730183066Sedwin# it will end on 2009-02-15 (current rule for Brazil is fine). Based on 731183066Sedwin# past years experience with the elections, there was a good chance that 732183066Sedwin# the start was postponed to November, but it did not happen this year. 733183066Sedwin# 734183066Sedwin# It has not yet been posted to http://pcdsh01.on.br/DecHV.html 735183066Sedwin# 736183066Sedwin# An official page about it: 737183066Sedwin# http://www.mme.gov.br/site/news/detail.do?newsId=16722 738183066Sedwin# Note that this link does not always work directly, but must be accessed 739183066Sedwin# by going to 740183066Sedwin# http://www.mme.gov.br/first 741183066Sedwin# 742183066Sedwin# One example link that works directly: 743183066Sedwin# http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemid=54 744183066Sedwin# (Portuguese) 745183066Sedwin# 746183066Sedwin# We have a written a short article about it as well: 747183066Sedwin# http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html 748226298Sedwin# 749226298Sedwin# From Alexander Krivenyshev (2011-10-04): 750226298Sedwin# State Bahia will return to Daylight savings time this year after 8 years off. 751240461Sedwin# The announcement was made by Governor Jaques Wagner in an interview to a 752240461Sedwin# television station in Salvador. 753183066Sedwin 754226298Sedwin# In Portuguese: 755226298Sedwin# http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html 756226298Sedwin# http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html 757226298Sedwin 758226298Sedwin# From Guilherme Bernardes Rodrigues (2011-10-07): 759226298Sedwin# There is news in the media, however there is still no decree about it. 760273438Sdelphij# I just send a e-mail to Zulmira Brandao at http://pcdsh01.on.br/ the 761248310Sedwin# official agency about time in Brazil, and she confirmed that the old rule is 762226298Sedwin# still in force. 763226298Sedwin 764226784Sedwin# From Guilherme Bernardes Rodrigues (2011-10-14) 765226784Sedwin# It's official, the President signed a decree that includes Bahia in summer 766226784Sedwin# time. 767226784Sedwin# [ and in a second message (same day): ] 768226784Sedwin# I found the decree. 769226784Sedwin# 770309568Sglebius# DECRETO No. 7.584, DE 13 DE OUTUBRO DE 2011 771226784Sedwin# Link : 772226784Sedwin# http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6 773226784Sedwin 774242212Sedwin# From Kelley Cook (2012-10-16): 775242212Sedwin# The governor of state of Bahia in Brazil announced on Thursday that 776242212Sedwin# due to public pressure, he is reversing the DST policy they implemented 777242212Sedwin# last year and will not be going to Summer Time on October 21st.... 778242212Sedwin# http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-horario-de-verao-na-bahia 779226784Sedwin 780242212Sedwin# From Rodrigo Severo (2012-10-16): 781242212Sedwin# Tocantins state will have DST. 782242212Sedwin# http://noticias.terra.com.br/brasil/noticias/0,,OI6232536-EI306.html 783242212Sedwin 784257682Sedwin# From Steffen Thorsen (2013-09-20): 785257682Sedwin# Tocantins in Brazil is very likely not to observe DST from October.... 786257682Sedwin# http://conexaoto.com.br/2013/09/18/ministerio-confirma-que-tocantins-esta-fora-do-horario-de-verao-em-2013-mas-falta-publicacao-de-decreto 787257682Sedwin# We will keep this article updated when this is confirmed: 788257682Sedwin# http://www.timeanddate.com/news/time/brazil-starts-dst-2013.html 789257682Sedwin 790257682Sedwin# From Steffen Thorsen (2013-10-17): 791257682Sedwin# http://www.timeanddate.com/news/time/acre-amazonas-change-time-zone.html 792257682Sedwin# Senator Jorge Viana announced that Acre will change time zone on November 10. 793257682Sedwin# He did not specify the time of the change, nor if western parts of Amazonas 794257682Sedwin# will change as well. 795257682Sedwin# 796257682Sedwin# From Paul Eggert (2013-10-17): 797257682Sedwin# For now, assume western Amazonas will change as well. 798257682Sedwin 7992742Swollman# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 800273438Sdelphij# Decree 20,466 <http://pcdsh01.on.br/HV20466.htm> (1931-10-01) 801273438Sdelphij# Decree 21,896 <http://pcdsh01.on.br/HV21896.htm> (1932-01-10) 80258787SruRule Brazil 1931 only - Oct 3 11:00 1:00 S 80358787SruRule Brazil 1932 1933 - Apr 1 0:00 0 - 80458787SruRule Brazil 1932 only - Oct 3 0:00 1:00 S 805273438Sdelphij# Decree 23,195 <http://pcdsh01.on.br/HV23195.htm> (1933-10-10) 80643014Swollman# revoked DST. 807273438Sdelphij# Decree 27,496 <http://pcdsh01.on.br/HV27496.htm> (1949-11-24) 808273438Sdelphij# Decree 27,998 <http://pcdsh01.on.br/HV27998.htm> (1950-04-13) 80958787SruRule Brazil 1949 1952 - Dec 1 0:00 1:00 S 81058787SruRule Brazil 1950 only - Apr 16 1:00 0 - 81158787SruRule Brazil 1951 1952 - Apr 1 0:00 0 - 812273438Sdelphij# Decree 32,308 <http://pcdsh01.on.br/HV32308.htm> (1953-02-24) 81358787SruRule Brazil 1953 only - Mar 1 0:00 0 - 814273438Sdelphij# Decree 34,724 <http://pcdsh01.on.br/HV34724.htm> (1953-11-30) 81543014Swollman# revoked DST. 816273438Sdelphij# Decree 52,700 <http://pcdsh01.on.br/HV52700.htm> (1963-10-18) 81743543Swollman# established DST from 1963-10-23 00:00 to 1964-02-29 00:00 81843543Swollman# in SP, RJ, GB, MG, ES, due to the prolongation of the drought. 819273438Sdelphij# Decree 53,071 <http://pcdsh01.on.br/HV53071.htm> (1963-12-03) 82043543Swollman# extended the above decree to all of the national territory on 12-09. 82158787SruRule Brazil 1963 only - Dec 9 0:00 1:00 S 822273438Sdelphij# Decree 53,604 <http://pcdsh01.on.br/HV53604.htm> (1964-02-25) 82343543Swollman# extended summer time by one day to 1964-03-01 00:00 (start of school). 82458787SruRule Brazil 1964 only - Mar 1 0:00 0 - 825273438Sdelphij# Decree 55,639 <http://pcdsh01.on.br/HV55639.htm> (1965-01-27) 82658787SruRule Brazil 1965 only - Jan 31 0:00 1:00 S 82758787SruRule Brazil 1965 only - Mar 31 0:00 0 - 828273438Sdelphij# Decree 57,303 <http://pcdsh01.on.br/HV57303.htm> (1965-11-22) 82958787SruRule Brazil 1965 only - Dec 1 0:00 1:00 S 830273438Sdelphij# Decree 57,843 <http://pcdsh01.on.br/HV57843.htm> (1966-02-18) 83158787SruRule Brazil 1966 1968 - Mar 1 0:00 0 - 83258787SruRule Brazil 1966 1967 - Nov 1 0:00 1:00 S 833273438Sdelphij# Decree 63,429 <http://pcdsh01.on.br/HV63429.htm> (1968-10-15) 83443543Swollman# revoked DST. 835273438Sdelphij# Decree 91,698 <http://pcdsh01.on.br/HV91698.htm> (1985-09-27) 83658787SruRule Brazil 1985 only - Nov 2 0:00 1:00 S 83743543Swollman# Decree 92,310 (1986-01-21) 83843543Swollman# Decree 92,463 (1986-03-13) 83958787SruRule Brazil 1986 only - Mar 15 0:00 0 - 84043543Swollman# Decree 93,316 (1986-10-01) 84158787SruRule Brazil 1986 only - Oct 25 0:00 1:00 S 84258787SruRule Brazil 1987 only - Feb 14 0:00 0 - 843273438Sdelphij# Decree 94,922 <http://pcdsh01.on.br/HV94922.htm> (1987-09-22) 84458787SruRule Brazil 1987 only - Oct 25 0:00 1:00 S 84558787SruRule Brazil 1988 only - Feb 7 0:00 0 - 846273438Sdelphij# Decree 96,676 <http://pcdsh01.on.br/HV96676.htm> (1988-09-12) 84743543Swollman# except for the states of AC, AM, PA, RR, RO, and AP (then a territory) 84858787SruRule Brazil 1988 only - Oct 16 0:00 1:00 S 84958787SruRule Brazil 1989 only - Jan 29 0:00 0 - 850273438Sdelphij# Decree 98,077 <http://pcdsh01.on.br/HV98077.htm> (1989-08-21) 85143543Swollman# with the same exceptions 85258787SruRule Brazil 1989 only - Oct 15 0:00 1:00 S 85358787SruRule Brazil 1990 only - Feb 11 0:00 0 - 854273438Sdelphij# Decree 99,530 <http://pcdsh01.on.br/HV99530.htm> (1990-09-17) 85543543Swollman# adopted by RS, SC, PR, SP, RJ, ES, MG, GO, MS, DF. 85643543Swollman# Decree 99,629 (1990-10-19) adds BA, MT. 85758787SruRule Brazil 1990 only - Oct 21 0:00 1:00 S 85858787SruRule Brazil 1991 only - Feb 17 0:00 0 - 859273438Sdelphij# Unnumbered decree <http://pcdsh01.on.br/HV1991.htm> (1991-09-25) 86043543Swollman# adopted by RS, SC, PR, SP, RJ, ES, MG, BA, GO, MT, MS, DF. 86158787SruRule Brazil 1991 only - Oct 20 0:00 1:00 S 86258787SruRule Brazil 1992 only - Feb 9 0:00 0 - 863273438Sdelphij# Unnumbered decree <http://pcdsh01.on.br/HV1992.htm> (1992-10-16) 86443543Swollman# adopted by same states. 86558787SruRule Brazil 1992 only - Oct 25 0:00 1:00 S 86658787SruRule Brazil 1993 only - Jan 31 0:00 0 - 867273438Sdelphij# Decree 942 <http://pcdsh01.on.br/HV942.htm> (1993-09-28) 86843543Swollman# adopted by same states, plus AM. 869273438Sdelphij# Decree 1,252 <http://pcdsh01.on.br/HV1252.htm> (1994-09-22; 870136638Swollman# web page corrected 2004-01-07) adopted by same states, minus AM. 871273438Sdelphij# Decree 1,636 <http://pcdsh01.on.br/HV1636.htm> (1995-09-14) 872136638Swollman# adopted by same states, plus MT and TO. 873273438Sdelphij# Decree 1,674 <http://pcdsh01.on.br/HV1674.htm> (1995-10-13) 87443543Swollman# adds AL, SE. 87558787SruRule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S 87658787SruRule Brazil 1994 1995 - Feb Sun>=15 0:00 0 - 87758787SruRule Brazil 1996 only - Feb 11 0:00 0 - 878273438Sdelphij# Decree 2,000 <http://pcdsh01.on.br/HV2000.htm> (1996-09-04) 87943543Swollman# adopted by same states, minus AL, SE. 88058787SruRule Brazil 1996 only - Oct 6 0:00 1:00 S 88158787SruRule Brazil 1997 only - Feb 16 0:00 0 - 882149514Swollman# From Daniel C. Sobral (1998-02-12): 88343014Swollman# In 1997, the DS began on October 6. The stated reason was that 88443014Swollman# because international television networks ignored Brazil's policy on DS, 88543014Swollman# they bought the wrong times on satellite for coverage of Pope's visit. 88643014Swollman# This year, the ending date of DS was postponed to March 1 88743014Swollman# to help dealing with the shortages of electric power. 88843014Swollman# 88943543Swollman# Decree 2,317 (1997-09-04), adopted by same states. 89058787SruRule Brazil 1997 only - Oct 6 0:00 1:00 S 891273438Sdelphij# Decree 2,495 <http://pcdsh01.on.br/figuras/HV2495.JPG> 89243014Swollman# (1998-02-10) 89358787SruRule Brazil 1998 only - Mar 1 0:00 0 - 894273438Sdelphij# Decree 2,780 <http://pcdsh01.on.br/figuras/Hv98.jpg> (1998-09-11) 89558787Sru# adopted by the same states as before. 89658787SruRule Brazil 1998 only - Oct 11 0:00 1:00 S 89758787SruRule Brazil 1999 only - Feb 21 0:00 0 - 898273438Sdelphij# Decree 3,150 <http://pcdsh01.on.br/figuras/HV3150.gif> 89958787Sru# (1999-08-23) adopted by same states. 900273438Sdelphij# Decree 3,188 <http://pcdsh01.on.br/DecHV99.gif> (1999-09-30) 90167578Swollman# adds SE, AL, PB, PE, RN, CE, PI, MA and RR. 90267578SwollmanRule Brazil 1999 only - Oct 3 0:00 1:00 S 90367578SwollmanRule Brazil 2000 only - Feb 27 0:00 0 - 904273438Sdelphij# Decree 3,592 <http://pcdsh01.on.br/DEC3592.htm> (2000-09-06) 90567578Swollman# adopted by the same states as before. 906273438Sdelphij# Decree 3,630 <http://pcdsh01.on.br/Dec3630.jpg> (2000-10-13) 90775267Swollman# repeals DST in PE and RR, effective 2000-10-15 00:00. 908273438Sdelphij# Decree 3,632 <http://pcdsh01.on.br/Dec3632.jpg> (2000-10-17) 90975267Swollman# repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00. 910273438Sdelphij# Decree 3,916 <http://pcdsh01.on.br/figuras/HV3916.gif> 91186222Swollman# (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE. 912105196SwollmanRule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S 913163302SruRule Brazil 2001 2006 - Feb Sun>=15 0:00 0 - 914105196Swollman# Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE. 915273438Sdelphij# 4,399 <http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm> 916105196SwollmanRule Brazil 2002 only - Nov 3 0:00 1:00 S 917121098Swollman# Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO. 918273438Sdelphij# 4,844 <http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm> 919136638SwollmanRule Brazil 2003 only - Oct 19 0:00 1:00 S 920136638Swollman# Decree 5,223 (2004-10-01) reestablishes DST in MT. 921273438Sdelphij# 5,223 <http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm> 922136638SwollmanRule Brazil 2004 only - Nov 2 0:00 1:00 S 923273438Sdelphij# Decree 5,539 <http://pcdsh01.on.br/DecHV5539.gif> (2005-09-19), 924153670Swollman# adopted by the same states as before. 925163302SruRule Brazil 2005 only - Oct 16 0:00 1:00 S 926273438Sdelphij# Decree 5,920 <http://pcdsh01.on.br/DecHV5920.gif> (2006-10-03), 927172479Sedwin# adopted by the same states as before. 928172479SedwinRule Brazil 2006 only - Nov 5 0:00 1:00 S 929172479SedwinRule Brazil 2007 only - Feb 25 0:00 0 - 930273438Sdelphij# Decree 6,212 <http://pcdsh01.on.br/DecHV6212.gif> (2007-09-26), 931181421Sedwin# adopted by the same states as before. 932183066SedwinRule Brazil 2007 only - Oct Sun>=8 0:00 1:00 S 933183536Sedwin# From Frederico A. C. Neves (2008-09-10): 934253010Sedwin# According to this decree 935183536Sedwin# http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm 936183536Sedwin# [t]he DST period in Brazil now on will be from the 3rd Oct Sunday to the 937183536Sedwin# 3rd Feb Sunday. There is an exception on the return date when this is 938183536Sedwin# the Carnival Sunday then the return date will be the next Sunday... 939183536SedwinRule Brazil 2008 max - Oct Sun>=15 0:00 1:00 S 940183536SedwinRule Brazil 2008 2011 - Feb Sun>=15 0:00 0 - 941183536SedwinRule Brazil 2012 only - Feb Sun>=22 0:00 0 - 942183536SedwinRule Brazil 2013 2014 - Feb Sun>=15 0:00 0 - 943183536SedwinRule Brazil 2015 only - Feb Sun>=22 0:00 0 - 944183536SedwinRule Brazil 2016 2022 - Feb Sun>=15 0:00 0 - 945183536SedwinRule Brazil 2023 only - Feb Sun>=22 0:00 0 - 946183536SedwinRule Brazil 2024 2025 - Feb Sun>=15 0:00 0 - 947183536SedwinRule Brazil 2026 only - Feb Sun>=22 0:00 0 - 948183536SedwinRule Brazil 2027 2033 - Feb Sun>=15 0:00 0 - 949183536SedwinRule Brazil 2034 only - Feb Sun>=22 0:00 0 - 950183536SedwinRule Brazil 2035 2036 - Feb Sun>=15 0:00 0 - 951183536SedwinRule Brazil 2037 only - Feb Sun>=22 0:00 0 - 952183536Sedwin# From Arthur David Olson (2008-09-29): 953183536Sedwin# The next is wrong in some years but is better than nothing. 954183536SedwinRule Brazil 2038 max - Feb Sun>=15 0:00 0 - 955183536Sedwin 956121098Swollman# The latest ruleset listed above says that the following states observe DST: 957136638Swollman# DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP. 95820094Swollman 9592742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 96020094Swollman# 961136638Swollman# Fernando de Noronha (administratively part of PE) 9622742SwollmanZone America/Noronha -2:09:40 - LMT 1914 96358787Sru -2:00 Brazil FN%sT 1990 Sep 17 964136638Swollman -2:00 - FNT 1999 Sep 30 965136638Swollman -2:00 Brazil FN%sT 2000 Oct 15 966136638Swollman -2:00 - FNT 2001 Sep 13 967136638Swollman -2:00 Brazil FN%sT 2002 Oct 1 96858787Sru -2:00 - FNT 969136638Swollman# Other Atlantic islands have no permanent settlement. 970273438Sdelphij# These include Trindade and Martim Vaz (administratively part of ES), 971273438Sdelphij# Rocas Atoll (RN), and the St Peter and St Paul Archipelago (PE). 972136638Swollman# Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01; 973136638Swollman# it also included the Penedos. 97420094Swollman# 975273438Sdelphij# Amap�� (AP), east Par�� (PA) 976273438Sdelphij# East Par�� includes Bel��m, Marab��, Serra Norte, and S��o F��lix do Xingu. 977273438Sdelphij# The division between east and west Par�� is the river Xingu. 978121098Swollman# In the north a very small part from the river Javary (now Jari I guess, 979273438Sdelphij# the border with Amap��) to the Amazon, then to the Xingu. 98043543SwollmanZone America/Belem -3:13:56 - LMT 1914 98158787Sru -3:00 Brazil BR%sT 1988 Sep 12 98258787Sru -3:00 - BRT 98343543Swollman# 984273438Sdelphij# west Par�� (PA) 985273438Sdelphij# West Par�� includes Altamira, ��bidos, Prainha, Oriximin��, and Santar��m. 986181421SedwinZone America/Santarem -3:38:48 - LMT 1914 987181421Sedwin -4:00 Brazil AM%sT 1988 Sep 12 988309568Sglebius -4:00 - AMT 2008 Jun 24 0:00 989181421Sedwin -3:00 - BRT 990181421Sedwin# 991273438Sdelphij# Maranh��o (MA), Piau�� (PI), Cear�� (CE), Rio Grande do Norte (RN), 992273438Sdelphij# Para��ba (PB) 99320094SwollmanZone America/Fortaleza -2:34:00 - LMT 1914 99458787Sru -3:00 Brazil BR%sT 1990 Sep 17 99558787Sru -3:00 - BRT 1999 Sep 30 99675267Swollman -3:00 Brazil BR%sT 2000 Oct 22 99786222Swollman -3:00 - BRT 2001 Sep 13 998105196Swollman -3:00 Brazil BR%sT 2002 Oct 1 999105196Swollman -3:00 - BRT 100020094Swollman# 100175267Swollman# Pernambuco (PE) (except Atlantic islands) 100275267SwollmanZone America/Recife -2:19:36 - LMT 1914 100375267Swollman -3:00 Brazil BR%sT 1990 Sep 17 100475267Swollman -3:00 - BRT 1999 Sep 30 100575267Swollman -3:00 Brazil BR%sT 2000 Oct 15 100686222Swollman -3:00 - BRT 2001 Sep 13 1007105196Swollman -3:00 Brazil BR%sT 2002 Oct 1 1008105196Swollman -3:00 - BRT 100975267Swollman# 101058787Sru# Tocantins (TO) 101143543SwollmanZone America/Araguaina -3:12:48 - LMT 1914 101258787Sru -3:00 Brazil BR%sT 1990 Sep 17 101358787Sru -3:00 - BRT 1995 Sep 14 1014121098Swollman -3:00 Brazil BR%sT 2003 Sep 24 1015242212Sedwin -3:00 - BRT 2012 Oct 21 1016257682Sedwin -3:00 Brazil BR%sT 2013 Sep 1017257682Sedwin -3:00 - BRT 101820094Swollman# 101958787Sru# Alagoas (AL), Sergipe (SE) 102043543SwollmanZone America/Maceio -2:22:52 - LMT 1914 102158787Sru -3:00 Brazil BR%sT 1990 Sep 17 102258787Sru -3:00 - BRT 1995 Oct 13 102358787Sru -3:00 Brazil BR%sT 1996 Sep 4 102458787Sru -3:00 - BRT 1999 Sep 30 102575267Swollman -3:00 Brazil BR%sT 2000 Oct 22 102686222Swollman -3:00 - BRT 2001 Sep 13 1027105196Swollman -3:00 Brazil BR%sT 2002 Oct 1 1028105196Swollman -3:00 - BRT 102943543Swollman# 1030121098Swollman# Bahia (BA) 1031121098Swollman# There are too many Salvadors elsewhere, so use America/Bahia instead 1032121098Swollman# of America/Salvador. 1033121098SwollmanZone America/Bahia -2:34:04 - LMT 1914 1034121098Swollman -3:00 Brazil BR%sT 2003 Sep 24 1035226784Sedwin -3:00 - BRT 2011 Oct 16 1036242212Sedwin -3:00 Brazil BR%sT 2012 Oct 21 1037242212Sedwin -3:00 - BRT 1038121098Swollman# 1039273438Sdelphij# Goi��s (GO), Distrito Federal (DF), Minas Gerais (MG), 1040273438Sdelphij# Esp��rito Santo (ES), Rio de Janeiro (RJ), S��o Paulo (SP), Paran�� (PR), 104158787Sru# Santa Catarina (SC), Rio Grande do Sul (RS) 10422742SwollmanZone America/Sao_Paulo -3:06:28 - LMT 1914 1043309568Sglebius -3:00 Brazil BR%sT 1963 Oct 23 0:00 104458787Sru -3:00 1:00 BRST 1964 104558787Sru -3:00 Brazil BR%sT 104620094Swollman# 1047121098Swollman# Mato Grosso do Sul (MS) 1048121098SwollmanZone America/Campo_Grande -3:38:28 - LMT 1914 104958787Sru -4:00 Brazil AM%sT 105020094Swollman# 1051121098Swollman# Mato Grosso (MT) 1052121098SwollmanZone America/Cuiaba -3:44:20 - LMT 1914 1053121098Swollman -4:00 Brazil AM%sT 2003 Sep 24 1054138323Swollman -4:00 - AMT 2004 Oct 1 1055136638Swollman -4:00 Brazil AM%sT 1056121098Swollman# 1057273438Sdelphij# Rond��nia (RO) 105843543SwollmanZone America/Porto_Velho -4:15:36 - LMT 1914 105958787Sru -4:00 Brazil AM%sT 1988 Sep 12 106058787Sru -4:00 - AMT 106143543Swollman# 106258787Sru# Roraima (RR) 106358787SruZone America/Boa_Vista -4:02:40 - LMT 1914 106458787Sru -4:00 Brazil AM%sT 1988 Sep 12 106558787Sru -4:00 - AMT 1999 Sep 30 106675267Swollman -4:00 Brazil AM%sT 2000 Oct 15 106775267Swollman -4:00 - AMT 106858787Sru# 1069273438Sdelphij# east Amazonas (AM): Boca do Acre, Juta��, Manaus, Floriano Peixoto 1070121098Swollman# The great circle line from Tabatinga to Porto Acre divides 1071121098Swollman# east from west Amazonas. 10722742SwollmanZone America/Manaus -4:00:04 - LMT 1914 107358787Sru -4:00 Brazil AM%sT 1988 Sep 12 107458787Sru -4:00 - AMT 1993 Sep 28 107558787Sru -4:00 Brazil AM%sT 1994 Sep 22 107658787Sru -4:00 - AMT 107720094Swollman# 107875267Swollman# west Amazonas (AM): Atalaia do Norte, Boca do Maoco, Benjamin Constant, 1079273438Sdelphij# Eirunep��, Envira, Ipixuna 108075267SwollmanZone America/Eirunepe -4:39:28 - LMT 1914 108175267Swollman -5:00 Brazil AC%sT 1988 Sep 12 108275267Swollman -5:00 - ACT 1993 Sep 28 108375267Swollman -5:00 Brazil AC%sT 1994 Sep 22 1084309568Sglebius -5:00 - ACT 2008 Jun 24 0:00 1085257682Sedwin -4:00 - AMT 2013 Nov 10 1086257682Sedwin -5:00 - ACT 108775267Swollman# 108858787Sru# Acre (AC) 108975267SwollmanZone America/Rio_Branco -4:31:12 - LMT 1914 109058787Sru -5:00 Brazil AC%sT 1988 Sep 12 1091309568Sglebius -5:00 - ACT 2008 Jun 24 0:00 1092257682Sedwin -4:00 - AMT 2013 Nov 10 1093257682Sedwin -5:00 - ACT 10942742Swollman 10952742Swollman# Chile 10962742Swollman 1097309568Sglebius# From Paul Eggert (2015-04-03): 1098309568Sglebius# Shanks & Pottenger says America/Santiago introduced standard time in 1099309568Sglebius# 1890 and rounds its UTC offset to 70W40; guess that in practice this 1100309568Sglebius# was the same offset as in 1916-1919. It also says Pacific/Easter 1101309568Sglebius# standardized on 109W22 in 1890; assume this didn't change the clocks. 1102309568Sglebius# 1103309568Sglebius# Dates for America/Santiago from 1910 to 2004 are primarily from 1104309568Sglebius# the following source, cited by Oscar van Vlijmen (2006-10-08): 1105309568Sglebius# [1] Chile Law 1106309568Sglebius# http://www.webexhibits.org/daylightsaving/chile.html 1107309568Sglebius# This contains a copy of a this official table: 1108309568Sglebius# Cambios en la hora oficial de Chile desde 1900 (retrieved 2008-03-30) 1109309568Sglebius# http://web.archive.org/web/20080330200901/http://www.horaoficial.cl/cambio.htm 1110309568Sglebius# [1] needs several corrections, though. 1111309568Sglebius# 1112309568Sglebius# The first set of corrections is from: 1113309568Sglebius# [2] History of the Official Time of Chile 1114309568Sglebius# http://www.horaoficial.cl/ing/horaof_ing.html (retrieved 2012-03-06). See: 1115309568Sglebius# http://web.archive.org/web/20120306042032/http://www.horaoficial.cl/ing/horaof_ing.html 1116309568Sglebius# This is an English translation of: 1117309568Sglebius# Historia de la hora oficial de Chile (retrieved 2012-10-24). See: 1118309568Sglebius# http://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm 1119309568Sglebius# A fancier Spanish version (requiring mouse-clicking) is at: 1120309568Sglebius# http://www.horaoficial.cl/historia_hora.html 1121309568Sglebius# Conflicts between [1] and [2] were resolved as follows: 1122309568Sglebius# 1123309568Sglebius# - [1] says the 1910 transition was Jan 1, [2] says Jan 10 and cites 1124309568Sglebius# Bolet��n No. 1, Aviso No. 1 (1910). Go with [2]. 1125309568Sglebius# 1126309568Sglebius# - [1] says SMT was -4:42:45, [2] says Chile's official time from 1127309568Sglebius# 1916 to 1919 was -4:42:46.3, the meridian of Chile's National 1128309568Sglebius# Astronomical Observatory (OAN), then located in what is now 1129309568Sglebius# Quinta Normal in Santiago. Go with [2], rounding it to -4:42:46. 1130309568Sglebius# 1131309568Sglebius# - [1] says the 1918 transition was Sep 1, [2] says Sep 10 and cites 1132309568Sglebius# Bolet��n No. 22, Aviso No. 129/1918 (1918-08-23). Go with [2]. 1133309568Sglebius# 1134309568Sglebius# - [1] does not give times for transitions; assume they occur 1135309568Sglebius# at midnight mainland time, the current common practice. However, 1136309568Sglebius# go with [2]'s specification of 23:00 for the 1947-05-21 transition. 1137309568Sglebius# 1138309568Sglebius# Another correction to [1] is from Jesper N��rgaard Welen, who 1139309568Sglebius# wrote (2006-10-08), "I think that there are some obvious mistakes in 1140309568Sglebius# the suggested link from Oscar van Vlijmen,... for instance entry 66 1141309568Sglebius# says that GMT-4 ended 1990-09-12 while entry 67 only begins GMT-3 at 1142309568Sglebius# 1990-09-15 (they should have been 1990-09-15 and 1990-09-16 1143309568Sglebius# respectively), but anyhow it clears up some doubts too." 1144309568Sglebius# 1145309568Sglebius# Data for Pacific/Easter from 1910 through 1967 come from Shanks & 1146309568Sglebius# Pottenger. After that, for lack of better info assume 1147309568Sglebius# Pacific/Easter is always two hours behind America/Santiago; 1148309568Sglebius# this is known to work for DST transitions starting in 2008 and 1149309568Sglebius# may well be true for earlier transitions. 1150309568Sglebius 115114343Swollman# From Eduardo Krell (1995-10-19): 115214343Swollman# The law says to switch to DST at midnight [24:00] on the second SATURDAY 115314343Swollman# of October.... The law is the same for March and October. 115443014Swollman# (1998-09-29): 115543014Swollman# Because of the drought this year, the government decided to go into 115643014Swollman# DST earlier (saturday 9/26 at 24:00). This is a one-time change only ... 115743014Swollman# (unless there's another dry season next year, I guess). 11582742Swollman 115958787Sru# From Julio I. Pacheco Troncoso (1999-03-18): 116058787Sru# Because of the same drought, the government decided to end DST later, 116158787Sru# on April 3, (one-time change). 116258787Sru 1163273438Sdelphij# From Germ��n Poo-Caama��o (2008-03-03): 1164176974Sedwin# Due to drought, Chile extends Daylight Time in three weeks. This 1165176974Sedwin# is one-time change (Saturday 3/29 at 24:00 for America/Santiago 1166176974Sedwin# and Saturday 3/29 at 22:00 for Pacific/Easter) 1167240461Sedwin# The Supreme Decree is located at 1168176974Sedwin# http://www.shoa.cl/servicios/supremo316.pdf 1169309568Sglebius# 1170273438Sdelphij# From Jos�� Miguel Garrido (2008-03-05): 1171176974Sedwin# http://www.shoa.cl/noticias/2008/04hora/hora.htm 1172176974Sedwin 1173204887Sedwin# From Angel Chiang (2010-03-04): 1174204887Sedwin# Subject: DST in Chile exceptionally extended to 3 April due to earthquake 1175204887Sedwin# http://www.gobiernodechile.cl/viewNoticia.aspx?idArticulo=30098 1176204887Sedwin# 1177309568Sglebius# From Arthur David Olson (2010-03-06): 1178204887Sedwin# Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch. 1179204887Sedwin 1180220286Sedwin# From Glenn Eychaner (2011-03-28): 1181220286Sedwin# http://diario.elmercurio.com/2011/03/28/_portada/_portada/noticias/7565897A-CA86-49E6-9E03-660B21A4883E.htm?id=3D{7565897A-CA86-49E6-9E03-660B21A4883E} 1182220286Sedwin# In English: 1183220286Sedwin# Chile's clocks will go back an hour this year on the 7th of May instead 1184220286Sedwin# of this Saturday. They will go forward again the 3rd Saturday in 1185309568Sglebius# August, not in October as they have since 1968. 1186220286Sedwin 1187233447Sedwin# From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23): 1188233447Sedwin# As stated in the website of the Chilean Energy Ministry 1189233447Sedwin# http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html 1190233447Sedwin# The Chilean Government has decided to postpone the entrance into winter time 1191309568Sglebius# (to leave DST) from March 11 2012 to April 28th 2012.... 1192233447Sedwin# Quote from the website communication: 1193233447Sedwin# 1194233447Sedwin# 6. For the year 2012, the dates of entry into winter time will be as follows: 1195233447Sedwin# a. Saturday April 28, 2012, clocks should go back 60 minutes; that is, at 1196233447Sedwin# 23:59:59, instead of passing to 0:00, the time should be adjusted to be 23:00 1197233447Sedwin# of the same day. 1198233447Sedwin# b. Saturday, September 1, 2012, clocks should go forward 60 minutes; that is, 1199233447Sedwin# at 23:59:59, instead of passing to 0:00, the time should be adjusted to be 1200233447Sedwin# 01:00 on September 2. 1201233447Sedwin 1202248310Sedwin# From Steffen Thorsen (2013-02-15): 1203248310Sedwin# According to several news sources, Chile has extended DST this year, 1204248310Sedwin# they will end DST later and start DST earlier than planned. They 1205248310Sedwin# hope to save energy. The new end date is 2013-04-28 00:00 and new 1206248310Sedwin# start date is 2013-09-08 00:00.... 1207248310Sedwin# http://www.gob.cl/informa/2013/02/15/gobierno-anuncia-fechas-de-cambio-de-hora-para-el-ano-2013.htm 1208248310Sedwin 1209273438Sdelphij# From Jos�� Miguel Garrido (2014-02-19): 1210263042Sedwin# Today appeared in the Diario Oficial a decree amending the time change 1211263042Sedwin# dates to 2014. 1212263042Sedwin# DST End: last Saturday of April 2014 (Sun 27 Apr 2014 03:00 UTC) 1213263042Sedwin# DST Start: first Saturday of September 2014 (Sun 07 Sep 2014 04:00 UTC) 1214263042Sedwin# http://www.diariooficial.interior.gob.cl//media/2014/02/19/do-20140219.pdf 1215263042Sedwin 1216309568Sglebius# From Eduardo Romero Urra (2015-03-03): 1217309568Sglebius# Today has been published officially that Chile will use the DST time 1218309568Sglebius# permanently until March 25 of 2017 1219309568Sglebius# http://www.diariooficial.interior.gob.cl/media/2015/03/03/1-large.jpg 1220309568Sglebius# 1221309568Sglebius# From Paul Eggert (2015-03-03): 1222309568Sglebius# For now, assume that the extension will persist indefinitely. 1223233447Sedwin 1224309568Sglebius# From Juan Correa (2016-03-18): 1225309568Sglebius# The decree regarding DST has been published in today's Official Gazette: 1226309568Sglebius# http://www.diariooficial.interior.gob.cl/versiones-anteriores/do/20160318/ 1227309568Sglebius# http://www.leychile.cl/Navegar?idNorma=1088502 1228309568Sglebius# It does consider the second Saturday of May and August as the dates 1229309568Sglebius# for the transition; and it lists DST dates until 2019, but I think 1230309568Sglebius# this scheme will stick. 1231309568Sglebius# 1232309568Sglebius# From Paul Eggert (2016-03-18): 1233309568Sglebius# For now, assume the pattern holds for the indefinite future. 1234309568Sglebius# The decree says transitions occur at 24:00; in practice this appears 1235309568Sglebius# to mean 24:00 mainland time, not 24:00 local time, so that Easter 1236309568Sglebius# Island is always two hours behind the mainland. 1237309568Sglebius 12382742Swollman# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1239309568SglebiusRule Chile 1927 1931 - Sep 1 0:00 1:00 S 124058787SruRule Chile 1928 1932 - Apr 1 0:00 0 - 1241169811SwollmanRule Chile 1968 only - Nov 3 4:00u 1:00 S 1242169811SwollmanRule Chile 1969 only - Mar 30 3:00u 0 - 1243169811SwollmanRule Chile 1969 only - Nov 23 4:00u 1:00 S 1244169811SwollmanRule Chile 1970 only - Mar 29 3:00u 0 - 1245169811SwollmanRule Chile 1971 only - Mar 14 3:00u 0 - 1246169811SwollmanRule Chile 1970 1972 - Oct Sun>=9 4:00u 1:00 S 1247169811SwollmanRule Chile 1972 1986 - Mar Sun>=9 3:00u 0 - 1248169811SwollmanRule Chile 1973 only - Sep 30 4:00u 1:00 S 1249169811SwollmanRule Chile 1974 1987 - Oct Sun>=9 4:00u 1:00 S 1250169811SwollmanRule Chile 1987 only - Apr 12 3:00u 0 - 1251309568SglebiusRule Chile 1988 1990 - Mar Sun>=9 3:00u 0 - 1252309568SglebiusRule Chile 1988 1989 - Oct Sun>=9 4:00u 1:00 S 1253169811SwollmanRule Chile 1990 only - Sep 16 4:00u 1:00 S 1254169811SwollmanRule Chile 1991 1996 - Mar Sun>=9 3:00u 0 - 1255169811SwollmanRule Chile 1991 1997 - Oct Sun>=9 4:00u 1:00 S 1256169811SwollmanRule Chile 1997 only - Mar 30 3:00u 0 - 1257169811SwollmanRule Chile 1998 only - Mar Sun>=9 3:00u 0 - 125875267SwollmanRule Chile 1998 only - Sep 27 4:00u 1:00 S 125975267SwollmanRule Chile 1999 only - Apr 4 3:00u 0 - 1260220286SedwinRule Chile 1999 2010 - Oct Sun>=9 4:00u 1:00 S 1261176974SedwinRule Chile 2000 2007 - Mar Sun>=9 3:00u 0 - 1262176974Sedwin# N.B.: the end of March 29 in Chile is March 30 in Universal time, 1263176974Sedwin# which is used below in specifying the transition. 1264176974SedwinRule Chile 2008 only - Mar 30 3:00u 0 - 1265204887SedwinRule Chile 2009 only - Mar Sun>=9 3:00u 0 - 1266220286SedwinRule Chile 2010 only - Apr Sun>=1 3:00u 0 - 1267220286SedwinRule Chile 2011 only - May Sun>=2 3:00u 0 - 1268233447SedwinRule Chile 2011 only - Aug Sun>=16 4:00u 1:00 S 1269309568SglebiusRule Chile 2012 2014 - Apr Sun>=23 3:00u 0 - 1270309568SglebiusRule Chile 2012 2014 - Sep Sun>=2 4:00u 1:00 S 1271309568SglebiusRule Chile 2016 max - May Sun>=9 3:00u 0 - 1272309568SglebiusRule Chile 2016 max - Aug Sun>=9 4:00u 1:00 S 1273169811Swollman# IATA SSIM anomalies: (1992-02) says 1992-03-14; 127458787Sru# (1996-09) says 1998-03-08. Ignore these. 12752742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1276169811SwollmanZone America/Santiago -4:42:46 - LMT 1890 1277309568Sglebius -4:42:46 - SMT 1910 Jan 10 # Santiago Mean Time 1278169811Swollman -5:00 - CLT 1916 Jul 1 # Chile Time 1279309568Sglebius -4:42:46 - SMT 1918 Sep 10 1280309568Sglebius -4:00 - CLT 1919 Jul 1 1281309568Sglebius -4:42:46 - SMT 1927 Sep 1 1282309568Sglebius -5:00 Chile CL%sT 1932 Sep 1 1283309568Sglebius -4:00 - CLT 1942 Jun 1 1284309568Sglebius -5:00 - CLT 1942 Aug 1 1285309568Sglebius -4:00 - CLT 1946 Jul 15 1286309568Sglebius -4:00 1:00 CLST 1946 Sep 1 # central Chile 1287309568Sglebius -4:00 - CLT 1947 Apr 1 1288309568Sglebius -5:00 - CLT 1947 May 21 23:00 128919878Swollman -4:00 Chile CL%sT 1290309568SglebiusZone Pacific/Easter -7:17:28 - LMT 1890 1291169811Swollman -7:17:28 - EMT 1932 Sep # Easter Mean Time 1292309568Sglebius -7:00 Chile EAS%sT 1982 Mar 14 3:00u # Easter Time 129319878Swollman -6:00 Chile EAS%sT 12942742Swollman# 1295273438Sdelphij# Salas y G��mez Island is uninhabited. 1296273438Sdelphij# Other Chilean locations, including Juan Fern��ndez Is, Desventuradas Is, 1297273438Sdelphij# and Antarctic bases, are like America/Santiago. 12982742Swollman 1299309568Sglebius# Antarctic base using South American rules 1300309568Sglebius# (See the file 'antarctica' for more.) 1301309568Sglebius# 1302309568Sglebius# Palmer, Anvers Island, since 1965 (moved 2 miles in 1968) 1303309568Sglebius# 1304309568Sglebius# From Ethan Dicks (1996-10-06): 1305309568Sglebius# It keeps the same time as Punta Arenas, Chile, because, just like us 1306309568Sglebius# and the South Pole, that's the other end of their supply line.... 1307309568Sglebius# I verified with someone who was there that since 1980, 1308309568Sglebius# Palmer has followed Chile. Prior to that, before the Falklands War, 1309309568Sglebius# Palmer used to be supplied from Argentina. 1310309568Sglebius# 1311309568Sglebius# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1312309568SglebiusZone Antarctica/Palmer 0 - -00 1965 1313309568Sglebius -4:00 Arg AR%sT 1969 Oct 5 1314309568Sglebius -3:00 Arg AR%sT 1982 May 1315309568Sglebius -4:00 Chile CL%sT 1316309568Sglebius 13172742Swollman# Colombia 1318248310Sedwin 1319273438Sdelphij# Milne gives 4:56:16.4 for Bogot�� time in 1899; round to nearest. He writes, 1320248310Sedwin# "A variation of fifteen minutes in the public clocks of Bogota is not rare." 1321248310Sedwin 132220094Swollman# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1323158421SwollmanRule CO 1992 only - May 3 0:00 1:00 S 1324158421SwollmanRule CO 1993 only - Apr 4 0:00 0 - 13252742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1326248310SedwinZone America/Bogota -4:56:16 - LMT 1884 Mar 13 1327273438Sdelphij -4:56:16 - BMT 1914 Nov 23 # Bogot�� Mean Time 132820094Swollman -5:00 CO CO%sT # Colombia Time 13292742Swollman# Malpelo, Providencia, San Andres 13302742Swollman# no information; probably like America/Bogota 13312742Swollman 1332273438Sdelphij# Cura��ao 1333248310Sedwin 1334273438Sdelphij# Milne gives 4:35:46.9 for Cura��ao mean time; round to nearest. 1335158421Swollman# 1336169811Swollman# From Paul Eggert (2006-03-22): 1337158421Swollman# Shanks & Pottenger say that The Bottom and Philipsburg have been at 1338158421Swollman# -4:00 since standard time was introduced on 1912-03-02; and that 1339158421Swollman# Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from 1340158421Swollman# 1912-02-02 to 1965-01-01. The former is dubious, since S&P also say 1341273438Sdelphij# Saba Island has been like Cura��ao. 1342169811Swollman# This all predates our 1970 cutoff, though. 1343158421Swollman# 1344273438Sdelphij# By July 2007 Cura��ao and St Maarten are planned to become 1345158421Swollman# associated states within the Netherlands, much like Aruba; 1346158421Swollman# Bonaire, Saba and St Eustatius would become directly part of the 1347158421Swollman# Netherlands as Kingdom Islands. This won't affect their time zones 1348158421Swollman# though, as far as we know. 1349169811Swollman# 13502742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1351309568SglebiusZone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad 135219878Swollman -4:30 - ANT 1965 # Netherlands Antilles Time 13532742Swollman -4:00 - AST 13542742Swollman 1355223629Sedwin# From Arthur David Olson (2011-06-15): 1356257682Sedwin# use links for places with new iso3166 codes. 1357273438Sdelphij# The name "Lower Prince's Quarter" is both longer than fourteen characters 1358223629Sedwin# and contains an apostrophe; use "Lower_Princes" below. 1359223629Sedwin 1360257682SedwinLink America/Curacao America/Lower_Princes # Sint Maarten 1361257682SedwinLink America/Curacao America/Kralendijk # Caribbean Netherlands 1362223629Sedwin 13632742Swollman# Ecuador 1364169811Swollman# 1365273438Sdelphij# Milne says the Central and South American Telegraph Company used -5:24:15. 1366248310Sedwin# 1367169811Swollman# From Paul Eggert (2007-03-04): 1368169811Swollman# Apparently Ecuador had a failed experiment with DST in 1992. 1369169811Swollman# <http://midena.gov.ec/content/view/1261/208/> (2007-02-27) and 1370169811Swollman# <http://www.hoy.com.ec/NoticiaNue.asp?row_id=249856> (2006-11-06) both 1371169811Swollman# talk about "hora Sixto". Leave this alone for now, as we have no data. 1372169811Swollman# 13732742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 13742742SwollmanZone America/Guayaquil -5:19:20 - LMT 1890 137519878Swollman -5:14:00 - QMT 1931 # Quito Mean Time 1376309568Sglebius -5:00 - ECT # Ecuador Time 13772742SwollmanZone Pacific/Galapagos -5:58:24 - LMT 1931 # Puerto Baquerizo Moreno 137819878Swollman -5:00 - ECT 1986 1379309568Sglebius -6:00 - GALT # Gal��pagos Time 13802742Swollman 13812742Swollman# Falklands 138275267Swollman 1383158421Swollman# From Paul Eggert (2006-03-22): 1384158421Swollman# Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except 1385158421Swollman# the IATA gives 1996-09-08. Go with Shanks & Pottenger. 138675267Swollman 138775267Swollman# From Falkland Islands Government Office, London (2001-01-22) 1388273438Sdelphij# via Jesper N��rgaard: 138975267Swollman# ... the clocks revert back to Local Mean Time at 2 am on Sunday 15 139075267Swollman# April 2001 and advance one hour to summer time at 2 am on Sunday 2 139175267Swollman# September. It is anticipated that the clocks will revert back at 2 139275267Swollman# am on Sunday 21 April 2002 and advance to summer time at 2 am on 139375267Swollman# Sunday 1 September. 139475267Swollman 139575267Swollman# From Rives McDow (2001-02-13): 139675267Swollman# 139775267Swollman# I have communicated several times with people there, and the last 139875267Swollman# time I had communications that was helpful was in 1998. Here is 139975267Swollman# what was said then: 140075267Swollman# 140175267Swollman# "The general rule was that Stanley used daylight saving and the Camp 140275267Swollman# did not. However for various reasons many people in the Camp have 140375267Swollman# started to use daylight saving (known locally as 'Stanley Time') 140475267Swollman# There is no rule as to who uses daylight saving - it is a matter of 140575267Swollman# personal choice and so it is impossible to draw a map showing who 140675267Swollman# uses it and who does not. Any list would be out of date as soon as 140775267Swollman# it was produced. This year daylight saving ended on April 18/19th 140875267Swollman# and started again on September 12/13th. I do not know what the rule 140975267Swollman# is, but can find out if you like. We do not change at the same time 141075267Swollman# as UK or Chile." 141175267Swollman# 141275267Swollman# I did have in my notes that the rule was "Second Saturday in Sep at 141375267Swollman# 0:00 until third Saturday in Apr at 0:00". I think that this does 141475267Swollman# not agree in some cases with Shanks; is this true? 141575267Swollman# 141675267Swollman# Also, there is no mention in the list that some areas in the 141775267Swollman# Falklands do not use DST. I have found in my communications there 141875267Swollman# that these areas are on the western half of East Falkland and all of 141975267Swollman# West Falkland. Stanley is the only place that consistently observes 142075267Swollman# DST. Again, as in other places in the world, the farmers don't like 142175267Swollman# it. West Falkland is almost entirely sheep farmers. 142275267Swollman# 142375267Swollman# I know one lady there that keeps a list of which farm keeps DST and 142475267Swollman# which doesn't each year. She runs a shop in Stanley, and says that 142575267Swollman# the list changes each year. She uses it to communicate to her 142675267Swollman# customers, catching them when they are home for lunch or dinner. 142775267Swollman 142875267Swollman# From Paul Eggert (2001-03-05): 142975267Swollman# For now, we'll just record the time in Stanley, since we have no 143075267Swollman# better info. 143175267Swollman 1432220549Sedwin# From Steffen Thorsen (2011-04-01): 1433220549Sedwin# The Falkland Islands will not turn back clocks this winter, but stay on 1434220549Sedwin# daylight saving time. 1435220549Sedwin# 1436220549Sedwin# One source: 1437220549Sedwin# http://www.falklandnews.com/public/story.cfm?get=5914&source=3 1438220549Sedwin# 1439220549Sedwin# We have gotten this confirmed by a clerk of the legislative assembly: 1440220549Sedwin# Normally the clocks revert to Local Mean Time (UTC/GMT -4 hours) on the 1441220549Sedwin# third Sunday of April at 0200hrs and advance to Summer Time (UTC/GMT -3 1442220549Sedwin# hours) on the first Sunday of September at 0200hrs. 1443220549Sedwin# 1444220549Sedwin# IMPORTANT NOTE: During 2011, on a trial basis, the Falkland Islands 1445220549Sedwin# will not revert to local mean time, but clocks will remain on Summer 1446220549Sedwin# time (UTC/GMT - 3 hours) throughout the whole of 2011. Any long term 1447220549Sedwin# change to local time following the trial period will be notified. 1448233447Sedwin# 1449233447Sedwin# From Andrew Newman (2012-02-24) 1450233447Sedwin# A letter from Justin McPhee, Chief Executive, 1451233447Sedwin# Cable & Wireless Falkland Islands (dated 2012-02-22) 1452233447Sedwin# states... 1453233447Sedwin# The current Atlantic/Stanley entry under South America expects the 1454233447Sedwin# clocks to go back to standard Falklands Time (FKT) on the 15th April. 1455233447Sedwin# The database entry states that in 2011 Stanley was staying on fixed 1456233447Sedwin# summer time on a trial basis only. FIG need to contact IANA and/or 1457233447Sedwin# the maintainers of the database to inform them we're adopting 1458233447Sedwin# the same policy this year and suggest recommendations for future years. 1459233447Sedwin# 1460233447Sedwin# For now we will assume permanent summer time for the Falklands 1461233447Sedwin# until advised differently (to apply for 2012 and beyond, after the 2011 1462233447Sedwin# experiment was apparently successful.) 14632742Swollman# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 146419878SwollmanRule Falk 1937 1938 - Sep lastSun 0:00 1:00 S 146519878SwollmanRule Falk 1938 1942 - Mar Sun>=19 0:00 0 - 146619878SwollmanRule Falk 1939 only - Oct 1 0:00 1:00 S 146719878SwollmanRule Falk 1940 1942 - Sep lastSun 0:00 1:00 S 146819878SwollmanRule Falk 1943 only - Jan 1 0:00 0 - 146919878SwollmanRule Falk 1983 only - Sep lastSun 0:00 1:00 S 147019878SwollmanRule Falk 1984 1985 - Apr lastSun 0:00 0 - 147119878SwollmanRule Falk 1984 only - Sep 16 0:00 1:00 S 147275267SwollmanRule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 S 147375267SwollmanRule Falk 1986 2000 - Apr Sun>=16 0:00 0 - 1474220549SedwinRule Falk 2001 2010 - Apr Sun>=15 2:00 0 - 1475233447SedwinRule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 S 14762742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 14772742SwollmanZone Atlantic/Stanley -3:51:24 - LMT 1890 1478309568Sglebius -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time 1479309568Sglebius -4:00 Falk FK%sT 1983 May # Falkland Is Time 148019878Swollman -3:00 Falk FK%sT 1985 Sep 15 1481309568Sglebius -4:00 Falk FK%sT 2010 Sep 5 2:00 1482233447Sedwin -3:00 - FKST 14832742Swollman 14842742Swollman# French Guiana 14852742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 14862742SwollmanZone America/Cayenne -3:29:20 - LMT 1911 Jul 148719878Swollman -4:00 - GFT 1967 Oct # French Guiana Time 148819878Swollman -3:00 - GFT 14892742Swollman 14902742Swollman# Guyana 14912742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1492309568SglebiusZone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown 149319878Swollman -3:45 - GBGT 1966 May 26 # Br Guiana Time 149419878Swollman -3:45 - GYT 1975 Jul 31 # Guyana Time 149520094Swollman -3:00 - GYT 1991 149620094Swollman# IATA SSIM (1996-06) says -4:00. Assume a 1991 switch. 149720094Swollman -4:00 - GYT 14982742Swollman 14992742Swollman# Paraguay 1500257682Sedwin# 1501158421Swollman# From Paul Eggert (2006-03-22): 1502273438Sdelphij# Shanks & Pottenger say that spring transitions are 01:00 -> 02:00, 1503273438Sdelphij# and autumn transitions are 00:00 -> 23:00. Go with pre-1999 150458787Sru# editions of Shanks, and with the IATA, who say transitions occur at 00:00. 1505257682Sedwin# 1506257682Sedwin# From Waldemar Villamayor-Venialbo (2013-09-20): 1507257682Sedwin# No time of the day is established for the adjustment, so people normally 1508257682Sedwin# adjust their clocks at 0 hour of the given dates. 1509257682Sedwin# 15102742Swollman# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 151158787SruRule Para 1975 1988 - Oct 1 0:00 1:00 S 151219878SwollmanRule Para 1975 1978 - Mar 1 0:00 0 - 151358787SruRule Para 1979 1991 - Apr 1 0:00 0 - 151419878SwollmanRule Para 1989 only - Oct 22 0:00 1:00 S 151520094SwollmanRule Para 1990 only - Oct 1 0:00 1:00 S 151620094SwollmanRule Para 1991 only - Oct 6 0:00 1:00 S 151720094SwollmanRule Para 1992 only - Mar 1 0:00 0 - 151820094SwollmanRule Para 1992 only - Oct 5 0:00 1:00 S 151920094SwollmanRule Para 1993 only - Mar 31 0:00 0 - 152030711SwollmanRule Para 1993 1995 - Oct 1 0:00 1:00 S 152120094SwollmanRule Para 1994 1995 - Feb lastSun 0:00 0 - 152258787SruRule Para 1996 only - Mar 1 0:00 0 - 152375267Swollman# IATA SSIM (2000-02) says 1999-10-10; ignore this for now. 152467578Swollman# From Steffen Thorsen (2000-10-02): 152567578Swollman# I have three independent reports that Paraguay changed to DST this Sunday 152667578Swollman# (10-01). 152775267Swollman# 152875267Swollman# Translated by Gwillim Law (2001-02-27) from 1529309568Sglebius# Noticias, a daily paper in Asunci��n, Paraguay (2000-10-01): 1530309568Sglebius# http://www.diarionoticias.com.py/011000/nacional/naciona1.htm 153175267Swollman# Starting at 0:00 today, the clock will be set forward 60 minutes, in 153275267Swollman# fulfillment of Decree No. 7,273 of the Executive Power.... The time change 153375267Swollman# system has been operating for several years. Formerly there was a separate 153475267Swollman# decree each year; the new law has the same effect, but permanently. Every 153575267Swollman# year, the time will change on the first Sunday of October; likewise, the 153675267Swollman# clock will be set back on the first Sunday of March. 153775267Swollman# 153893799SwollmanRule Para 1996 2001 - Oct Sun>=1 0:00 1:00 S 1539158421Swollman# IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger. 154075267SwollmanRule Para 1997 only - Feb lastSun 0:00 0 - 1541158421Swollman# Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but 154275267Swollman# (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27). 154393799SwollmanRule Para 1998 2001 - Mar Sun>=1 0:00 0 - 154493799Swollman# From Rives McDow (2002-02-28): 1545309568Sglebius# A decree was issued in Paraguay (No. 16350) on 2002-02-26 that changed the 154693799Swollman# dst method to be from the first Sunday in September to the first Sunday in 154793799Swollman# April. 1548149514SwollmanRule Para 2002 2004 - Apr Sun>=1 0:00 0 - 1549149514SwollmanRule Para 2002 2003 - Sep Sun>=1 0:00 1:00 S 1550149514Swollman# 1551273438Sdelphij# From Jesper N��rgaard Welen (2005-01-02): 1552149514Swollman# There are several sources that claim that Paraguay made 1553149514Swollman# a timezone rule change in autumn 2004. 1554149514Swollman# From Steffen Thorsen (2005-01-05): 1555169811Swollman# Decree 1,867 (2004-03-05) 1556273438Sdelphij# From Carlos Ra��l Perasso via Jesper N��rgaard Welen (2006-10-13) 1557309568Sglebius# http://www.presidencia.gov.py/decretos/D1867.pdf 1558204566SedwinRule Para 2004 2009 - Oct Sun>=15 0:00 1:00 S 1559204566SedwinRule Para 2005 2009 - Mar Sun>=8 0:00 0 - 1560273438Sdelphij# From Carlos Ra��l Perasso (2010-02-18): 1561273438Sdelphij# By decree number 3958 issued yesterday 1562204566Sedwin# http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf 1563204566Sedwin# Paraguay changes its DST schedule, postponing the March rule to April and 1564204566Sedwin# modifying the October date. The decree reads: 1565204566Sedwin# ... 1566204566Sedwin# Art. 1. It is hereby established that from the second Sunday of the month of 1567204566Sedwin# April of this year (2010), the official time is to be set back 60 minutes, 1568204566Sedwin# and that on the first Sunday of the month of October, it is to be set 1569204566Sedwin# forward 60 minutes, in all the territory of the Paraguayan Republic. 1570204566Sedwin# ... 1571204887SedwinRule Para 2010 max - Oct Sun>=1 0:00 1:00 S 1572249696SedwinRule Para 2010 2012 - Apr Sun>=8 0:00 0 - 1573248310Sedwin# 1574248310Sedwin# From Steffen Thorsen (2013-03-07): 1575248310Sedwin# Paraguay will end DST on 2013-03-24 00:00.... 1576248310Sedwin# http://www.ande.gov.py/interna.php?id=1075 1577248310Sedwin# 1578273438Sdelphij# From Carlos Ra��l Perasso (2013-03-15): 1579249696Sedwin# The change in Paraguay is now final. Decree number 10780 1580249696Sedwin# http://www.presidencia.gov.py/uploads/pdf/presidencia-3b86ff4b691c79d4f5927ca964922ec74772ce857c02ca054a52a37b49afc7fb.pdf 1581273438Sdelphij# From Carlos Ra��l Perasso (2014-02-28): 1582263042Sedwin# Decree 1264 can be found at: 1583263042Sedwin# http://www.presidencia.gov.py/archivos/documentos/DECRETO1264_ey9r8zai.pdf 1584249696SedwinRule Para 2013 max - Mar Sun>=22 0:00 0 - 158575267Swollman 15862742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 15872742SwollmanZone America/Asuncion -3:50:40 - LMT 1890 1588273438Sdelphij -3:50:40 - AMT 1931 Oct 10 # Asunci��n Mean Time 1589309568Sglebius -4:00 - PYT 1972 Oct # Paraguay Time 159019878Swollman -3:00 - PYT 1974 Apr 159119878Swollman -4:00 Para PY%sT 15922742Swollman 15932742Swollman# Peru 1594136638Swollman# 1595273438Sdelphij# From Evelyn C. Leeper via Mark Brader (2003-10-26) 1596273438Sdelphij# <news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net>: 1597149514Swollman# When we were in Peru in 1985-1986, they apparently switched over 1598136638Swollman# sometime between December 29 and January 3 while we were on the Amazon. 1599136638Swollman# 1600158421Swollman# From Paul Eggert (2006-03-22): 1601158421Swollman# Shanks & Pottenger don't have this transition. Assume 1986 was like 1987. 1602136638Swollman 16032742Swollman# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 160419878SwollmanRule Peru 1938 only - Jan 1 0:00 1:00 S 160519878SwollmanRule Peru 1938 only - Apr 1 0:00 0 - 160619878SwollmanRule Peru 1938 1939 - Sep lastSun 0:00 1:00 S 160719878SwollmanRule Peru 1939 1940 - Mar Sun>=24 0:00 0 - 1608136638SwollmanRule Peru 1986 1987 - Jan 1 0:00 1:00 S 1609136638SwollmanRule Peru 1986 1987 - Apr 1 0:00 0 - 161019878SwollmanRule Peru 1990 only - Jan 1 0:00 1:00 S 161119878SwollmanRule Peru 1990 only - Apr 1 0:00 0 - 1612158421Swollman# IATA is ambiguous for 1993/1995; go with Shanks & Pottenger. 161358787SruRule Peru 1994 only - Jan 1 0:00 1:00 S 161458787SruRule Peru 1994 only - Apr 1 0:00 0 - 16152742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 16162742SwollmanZone America/Lima -5:08:12 - LMT 1890 161786222Swollman -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time? 161819878Swollman -5:00 Peru PE%sT # Peru Time 16192742Swollman 16202742Swollman# South Georgia 16212742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 1622309568SglebiusZone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken 162319878Swollman -2:00 - GST # South Georgia Time 16242742Swollman 16252742Swollman# South Sandwich Is 162658787Sru# uninhabited; scientific personnel have wintered 16272742Swollman 16282742Swollman# Suriname 16292742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 16302742SwollmanZone America/Paramaribo -3:40:40 - LMT 1911 16312742Swollman -3:40:52 - PMT 1935 # Paramaribo Mean Time 1632309568Sglebius -3:40:36 - PMT 1945 Oct # The capital moved? 163319878Swollman -3:30 - NEGT 1975 Nov 20 # Dutch Guiana Time 1634309568Sglebius -3:30 - SRT 1984 Oct # Suriname Time 163519878Swollman -3:00 - SRT 16362742Swollman 16372742Swollman# Trinidad and Tobago 16382742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 16392742SwollmanZone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 16402742Swollman -4:00 - AST 16412742Swollman 1642263042Sedwin# These all agree with Trinidad and Tobago since 1970. 1643257682SedwinLink America/Port_of_Spain America/Anguilla 1644309568SglebiusLink America/Port_of_Spain America/Antigua 1645257682SedwinLink America/Port_of_Spain America/Dominica 1646257682SedwinLink America/Port_of_Spain America/Grenada 1647257682SedwinLink America/Port_of_Spain America/Guadeloupe 1648263042SedwinLink America/Port_of_Spain America/Marigot # St Martin (French part) 1649257682SedwinLink America/Port_of_Spain America/Montserrat 1650273438SdelphijLink America/Port_of_Spain America/St_Barthelemy # St Barth��lemy 1651263042SedwinLink America/Port_of_Spain America/St_Kitts # St Kitts & Nevis 1652257682SedwinLink America/Port_of_Spain America/St_Lucia 1653263042SedwinLink America/Port_of_Spain America/St_Thomas # Virgin Islands (US) 1654257682SedwinLink America/Port_of_Spain America/St_Vincent 1655263042SedwinLink America/Port_of_Spain America/Tortola # Virgin Islands (UK) 1656257682Sedwin 16572742Swollman# Uruguay 1658149514Swollman# From Paul Eggert (1993-11-18): 16592742Swollman# Uruguay wins the prize for the strangest peacetime manipulation of the rules. 1660158421Swollman# From Shanks & Pottenger: 16612742Swollman# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S 1662158421Swollman# Whitman gives 1923 Oct 1; go with Shanks & Pottenger. 166319878SwollmanRule Uruguay 1923 only - Oct 2 0:00 0:30 HS 166419878SwollmanRule Uruguay 1924 1926 - Apr 1 0:00 0 - 166519878SwollmanRule Uruguay 1924 1925 - Oct 1 0:00 0:30 HS 166619878SwollmanRule Uruguay 1933 1935 - Oct lastSun 0:00 0:30 HS 1667158421Swollman# Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman. 166819878SwollmanRule Uruguay 1934 1936 - Mar Sat>=25 23:30s 0 - 166919878SwollmanRule Uruguay 1936 only - Nov 1 0:00 0:30 HS 167019878SwollmanRule Uruguay 1937 1941 - Mar lastSun 0:00 0 - 1671158421Swollman# Whitman gives 1937 Oct 3; go with Shanks & Pottenger. 167219878SwollmanRule Uruguay 1937 1940 - Oct lastSun 0:00 0:30 HS 16732742Swollman# Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13, 1674257682Sedwin# and 1943 Apr 13 "to present time"; go with Shanks & Pottenger. 1675158421SwollmanRule Uruguay 1941 only - Aug 1 0:00 0:30 HS 1676158421SwollmanRule Uruguay 1942 only - Jan 1 0:00 0 - 167719878SwollmanRule Uruguay 1942 only - Dec 14 0:00 1:00 S 167819878SwollmanRule Uruguay 1943 only - Mar 14 0:00 0 - 167919878SwollmanRule Uruguay 1959 only - May 24 0:00 1:00 S 168019878SwollmanRule Uruguay 1959 only - Nov 15 0:00 0 - 168119878SwollmanRule Uruguay 1960 only - Jan 17 0:00 1:00 S 168219878SwollmanRule Uruguay 1960 only - Mar 6 0:00 0 - 168319878SwollmanRule Uruguay 1965 1967 - Apr Sun>=1 0:00 1:00 S 168419878SwollmanRule Uruguay 1965 only - Sep 26 0:00 0 - 168519878SwollmanRule Uruguay 1966 1967 - Oct 31 0:00 0 - 168619878SwollmanRule Uruguay 1968 1970 - May 27 0:00 0:30 HS 168719878SwollmanRule Uruguay 1968 1970 - Dec 2 0:00 0 - 168819878SwollmanRule Uruguay 1972 only - Apr 24 0:00 1:00 S 168919878SwollmanRule Uruguay 1972 only - Aug 15 0:00 0 - 169019878SwollmanRule Uruguay 1974 only - Mar 10 0:00 0:30 HS 169119878SwollmanRule Uruguay 1974 only - Dec 22 0:00 1:00 S 169219878SwollmanRule Uruguay 1976 only - Oct 1 0:00 0 - 169319878SwollmanRule Uruguay 1977 only - Dec 4 0:00 1:00 S 169419878SwollmanRule Uruguay 1978 only - Apr 1 0:00 0 - 169519878SwollmanRule Uruguay 1979 only - Oct 1 0:00 1:00 S 169619878SwollmanRule Uruguay 1980 only - May 1 0:00 0 - 169719878SwollmanRule Uruguay 1987 only - Dec 14 0:00 1:00 S 169819878SwollmanRule Uruguay 1988 only - Mar 14 0:00 0 - 169919878SwollmanRule Uruguay 1988 only - Dec 11 0:00 1:00 S 170019878SwollmanRule Uruguay 1989 only - Mar 12 0:00 0 - 170119878SwollmanRule Uruguay 1989 only - Oct 29 0:00 1:00 S 1702158421Swollman# Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2, 170358787Sru# and that 1992/3's DST was from 10-25 to 03-01. Go with IATA. 170420094SwollmanRule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 - 170520094SwollmanRule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S 170630711SwollmanRule Uruguay 1992 only - Oct 18 0:00 1:00 S 170720094SwollmanRule Uruguay 1993 only - Feb 28 0:00 0 - 1708136638Swollman# From Eduardo Cota (2004-09-20): 1709309568Sglebius# The Uruguayan government has decreed a change in the local time.... 1710136638Swollman# http://www.presidencia.gub.uy/decretos/2004091502.htm 1711149514SwollmanRule Uruguay 2004 only - Sep 19 0:00 1:00 S 1712149514Swollman# From Steffen Thorsen (2005-03-11): 1713149514Swollman# Uruguay's DST was scheduled to end on Sunday, 2005-03-13, but in order to 1714149514Swollman# save energy ... it was postponed two weeks.... 1715149514Swollman# http://www.presidencia.gub.uy/_Web/noticias/2005/03/2005031005.htm 1716149514SwollmanRule Uruguay 2005 only - Mar 27 2:00 0 - 1717153670Swollman# From Eduardo Cota (2005-09-27): 1718153670Swollman# http://www.presidencia.gub.uy/_Web/decretos/2005/09/CM%20119_09%2009%202005_00001.PDF 1719153670Swollman# This means that from 2005-10-09 at 02:00 local time, until 2006-03-12 at 1720153670Swollman# 02:00 local time, official time in Uruguay will be at GMT -2. 1721153670SwollmanRule Uruguay 2005 only - Oct 9 2:00 1:00 S 1722153670SwollmanRule Uruguay 2006 only - Mar 12 2:00 0 - 1723273438Sdelphij# From Jesper N��rgaard Welen (2006-09-06): 1724163302Sru# http://www.presidencia.gub.uy/_web/decretos/2006/09/CM%20210_08%2006%202006_00001.PDF 1725309568Sglebius# 1726309568Sglebius# From Steffen Thorsen (2015-06-30): 1727309568Sglebius# ... it looks like they will not be using DST the coming summer: 1728309568Sglebius# http://www.elobservador.com.uy/gobierno-resolvio-que-no-habra-cambio-horario-verano-n656787 1729309568Sglebius# http://www.republica.com.uy/este-ano-no-se-modificara-el-huso-horario-en-uruguay/523760/ 1730309568Sglebius# From Paul Eggert (2015-06-30): 1731309568Sglebius# Apparently restaurateurs complained that DST caused people to go to the beach 1732309568Sglebius# instead of out to dinner. 1733309568Sglebius# From Pablo Camargo (2015-07-13): 1734309568Sglebius# http://archivo.presidencia.gub.uy/sci/decretos/2015/06/cons_min_201.pdf 1735309568Sglebius# [dated 2015-06-29; repeals Decree 311/006 dated 2006-09-04] 1736309568SglebiusRule Uruguay 2006 2014 - Oct Sun>=1 2:00 1:00 S 1737309568SglebiusRule Uruguay 2007 2015 - Mar Sun>=8 2:00 0 - 17382742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 17392742SwollmanZone America/Montevideo -3:44:44 - LMT 1898 Jun 28 1740309568Sglebius -3:44:44 - MMT 1920 May 1 # Montevideo MT 1741309568Sglebius -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time 174219878Swollman -3:00 Uruguay UY%sT 17432742Swollman 17442742Swollman# Venezuela 1745172479Sedwin# 1746309568Sglebius# From Paul Eggert (2015-07-28): 1747309568Sglebius# For the 1965 transition see Gaceta Oficial No. 27.619 (1964-12-15), p 205.533 1748309568Sglebius# http://www.pgr.gob.ve/dmdocuments/1964/27619.pdf 1749309568Sglebius# 1750174242Sedwin# From John Stainforth (2007-11-28): 1751174242Sedwin# ... the change for Venezuela originally expected for 2007-12-31 has 1752174242Sedwin# been brought forward to 2007-12-09. The official announcement was 1753273438Sdelphij# published today in the "Gaceta Oficial de la Rep��blica Bolivariana 1754273438Sdelphij# de Venezuela, n��mero 38.819" (official document for all laws or 1755174242Sedwin# resolution publication) 1756174242Sedwin# http://www.globovision.com/news.php?nid=72208 1757172479Sedwin 1758309568Sglebius# From Alexander Krivenyshev (2016-04-15): 1759309568Sglebius# https://actualidad.rt.com/actualidad/204758-venezuela-modificar-huso-horario-sequia-elnino 1760309568Sglebius# 1761309568Sglebius# From Paul Eggert (2016-04-15): 1762309568Sglebius# Clocks advance 30 minutes on 2016-05-01 at 02:30.... 1763309568Sglebius# "'Venezuela's new time-zone: hours without light, hours without water, 1764309568Sglebius# hours of presidential broadcasts, hours of lines,' quipped comedian 1765309568Sglebius# Jean Mary Curr�� ...". See: Cawthorne A, Kai D. Venezuela scraps 1766309568Sglebius# half-hour time difference set by Chavez. Reuters 2016-04-15 14:50 -0400 1767309568Sglebius# http://www.reuters.com/article/us-venezuela-timezone-idUSKCN0XC2BE 1768309568Sglebius# 1769309568Sglebius# From Matt Johnson (2016-04-20): 1770309568Sglebius# ... published in the official Gazette [2016-04-18], here: 1771309568Sglebius# http://historico.tsj.gob.ve/gaceta_ext/abril/1842016/E-1842016-4551.pdf 1772309568Sglebius 17732742Swollman# Zone NAME GMTOFF RULES FORMAT [UNTIL] 17742742SwollmanZone America/Caracas -4:27:44 - LMT 1890 177586222Swollman -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time? 1776309568Sglebius -4:30 - VET 1965 Jan 1 0:00 # Venezuela T. 1777309568Sglebius -4:00 - VET 2007 Dec 9 3:00 1778309568Sglebius -4:30 - VET 2016 May 1 2:30 1779309568Sglebius -4:00 - VET 1780