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1# @(#)southamerica 7.49
1# @(#)southamerica 7.54
2
3# This data is by no means authoritative; if you think you know better,
4# go ahead and edit the file (and please send any changes to
5# tz@elsie.nci.nih.gov for general use in the future).
6
7# From Paul Eggert <eggert@twinsun.com> (1999-07-07):
8# A good source for time zone historical data outside the U.S. is
9# Thomas G. Shanks, The International Atlas (5th edition),

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136# (2001-06-25):
137# Last Friday (yes, the last working day before the date of the change), the
138# Senate annulled the 1999 law that introduced the changes later postponed.
139# http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm
140# It remains the vote of the Deputies..., but it will be the same....
141# This kind of things had always been done this way in Argentina.
142# We are still -03:00 all year round in all of the country.
143#
2
3# This data is by no means authoritative; if you think you know better,
4# go ahead and edit the file (and please send any changes to
5# tz@elsie.nci.nih.gov for general use in the future).
6
7# From Paul Eggert <eggert@twinsun.com> (1999-07-07):
8# A good source for time zone historical data outside the U.S. is
9# Thomas G. Shanks, The International Atlas (5th edition),

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136# (2001-06-25):
137# Last Friday (yes, the last working day before the date of the change), the
138# Senate annulled the 1999 law that introduced the changes later postponed.
139# http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm
140# It remains the vote of the Deputies..., but it will be the same....
141# This kind of things had always been done this way in Argentina.
142# We are still -03:00 all year round in all of the country.
143#
144# From Mariano Absatz (2004-05-21):
145# Today it was officially published that the Province of Mendoza is changing
146# its timezone this winter... starting tomorrow night....
147# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040521-27158-normas.pdf
148# From Paul Eggert (2004-05-24):
149# It's Law No. 7,210. This change is due to a public power emergency, so for
150# now we'll assume it's for this year only.
144#
145# From Paul Eggert (2002-01-22):
146# <a href="http://www.spicasc.net/horvera.html">
147# Hora de verano para la Republica Argentina (2000-10-01)
148# </a> says that standard time in Argentina from 1894-10-31
149# to 1920-05-01 was -4:16:48.25. Go with this more-precise value
150# over Shanks.
151#
152# From Paul Eggert (2002-01-22):
153# <a href="http://www.spicasc.net/horvera.html">
154# Hora de verano para la Republica Argentina (2000-10-01)
155# </a> says that standard time in Argentina from 1894-10-31
156# to 1920-05-01 was -4:16:48.25. Go with this more-precise value
157# over Shanks.
158#
159# From Mariano Absatz (2004-06-05):
160# These media articles from a major newspaper mostly cover the current state:
161# http://www.lanacion.com.ar/04/05/27/de_604825.asp
162# http://www.lanacion.com.ar/04/05/28/de_605203.asp
163#
164# The following eight (8) provinces pulled clocks back to UTC-04:00 at
165# midnight Monday May 31st. (that is, the night between 05/31 and 06/01).
166# Apparently, all nine provinces would go back to UTC-03:00 at the same
167# time in October 17th.
168#
169# Catamarca, Chubut, La Rioja, San Juan, San Luis, Santa Cruz,
170# Tierra del Fuego, Tucuman.
171#
172# From Mariano Absatz (2004-06-14):
173# ... this weekend, the Province of Tucuman decided it'd go back to UTC-03:00
174# yesterday midnight (that is, at 24:00 Saturday 12th), since the people's
175# annoyance with the change is much higher than the power savings obtained....
176#
177# From Gwillim Law (2004-06-14):
178# http://www.lanacion.com.ar/04/06/10/de_609078.asp ...
179# "The time change in Tierra del Fuego was a conflicted decision from
180# the start. The government had decreed that the measure would take
181# effect on June 1, but a normative error forced the new time to begin
182# three days earlier, from a Saturday to a Sunday....
183# Our understanding was that the change was originally scheduled to take place
184# on June 1 at 00:00 in Chubut, Santa Cruz, Tierra del Fuego (and some other
185# provinces). Sunday was May 30, only two days earlier. So the article
186# contains a contradiction. I would give more credence to the Saturday/Sunday
187# date than the "three days earlier" phrase, and conclude that Tierra del
188# Fuego set its clocks back at 2004-05-30 00:00.
189#
190# From Steffen Thorsen (2004-10-05):
191# The previous law 7210 which changed the province of Mendoza's time zone
192# back in May have been modified slightly in a new law 7277, which set the
193# new end date to 2004-09-26 (original date was 2004-10-17).
194# http://www.gobernac.mendoza.gov.ar/boletin/pdf/20040924-27244-normas.pdf
195#
196# From Mariano Absatz (2004-10-05):
197# San Juan changed from UTC-03:00 to UTC-04:00 at midnight between
198# Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00
199# at midnight between Saturday, July 24th and Sunday, July 25th....
200# http://www.sanjuan.gov.ar/prensa/archivo/000329.html
201# http://www.sanjuan.gov.ar/prensa/archivo/000426.html
202# http://www.sanjuan.gov.ar/prensa/archivo/000441.html
151
152# Unless otherwise specified, data are from Shanks through 1992, from
153# the IATA otherwise. As noted below, Shanks says that
203
204# Unless otherwise specified, data are from Shanks through 1992, from
205# the IATA otherwise. As noted below, Shanks says that
154# America/Cordoba split into 7 subregions during 1991/1992, but we
206# America/Cordoba split into 6 subregions during 1991/1992, but we
155# haven't verified this yet so for now we'll keep it a single region.
156#
157# Zone NAME GMTOFF RULES FORMAT [UNTIL]
158#
207# haven't verified this yet so for now we'll keep it a single region.
208#
209# Zone NAME GMTOFF RULES FORMAT [UNTIL]
210#
159# Buenos Aires (BA), Capital Federal (CF), Santa Cruz (SC),
160# Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF)
161Zone America/Buenos_Aires -3:53:48 - LMT 1894 Oct 31
211# Buenos Aires (BA), Capital Federal (CF),
212Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31
162 -4:16:48 - CMT 1920 May # Cordoba Mean Time
163 -4:00 - ART 1930 Dec
164 -4:00 Arg AR%sT 1969 Oct 5
165 -3:00 Arg AR%sT 1999 Oct 3
166 -4:00 Arg AR%sT 2000 Mar 3
167 -3:00 - ART
168#
169# Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC),
213 -4:16:48 - CMT 1920 May # Cordoba Mean Time
214 -4:00 - ART 1930 Dec
215 -4:00 Arg AR%sT 1969 Oct 5
216 -3:00 Arg AR%sT 1999 Oct 3
217 -4:00 Arg AR%sT 2000 Mar 3
218 -3:00 - ART
219#
220# Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC),
170# Formosa (FM), Salta (SA), Tucuman (TM), Santiago del Estero (SE),
171# Cordoba (CB), La Rioja (LR), San Juan (SJ), San Luis (SL), La Pampa (LP),
172# Neuquen (NQ), Rio Negro (RN), Chubut (CH)
221# Formosa (FM), Salta (SA), Santiago del Estero (SE), Cordoba (CB),
222# San Luis (SL), La Pampa (LP), Neuquen (NQ), Rio Negro (RN)
173#
174# Shanks also makes the following claims, which we haven't verified:
175# - Formosa switched to -3:00 on 1991-01-07.
223#
224# Shanks also makes the following claims, which we haven't verified:
225# - Formosa switched to -3:00 on 1991-01-07.
176# - La Rioja and San Juan switched to -4:00 on 1991-03-01
177# and then to -3:00 on 1991-05-07.
178# - Misiones switched to -3:00 on 1990-12-29.
179# - Chaco switched to -3:00 on 1991-01-04.
180# - San Luis switched to -4:00 on 1990-03-14, then to -3:00 on 1990-10-15,
181# then to -4:00 on 1991-03-01, then to -3:00 on 1991-06-01.
182# - Santiago del Estero switched to -4:00 on 1991-04-01,
183# then to -3:00 on 1991-04-26.
226# - Misiones switched to -3:00 on 1990-12-29.
227# - Chaco switched to -3:00 on 1991-01-04.
228# - San Luis switched to -4:00 on 1990-03-14, then to -3:00 on 1990-10-15,
229# then to -4:00 on 1991-03-01, then to -3:00 on 1991-06-01.
230# - Santiago del Estero switched to -4:00 on 1991-04-01,
231# then to -3:00 on 1991-04-26.
184# If we need to add Zones for these areas, we may need to have a subdirectory
185# for Argentina, as e.g. "America/San_Luis" is too ambiguious.
186#
232#
187Zone America/Cordoba -4:16:48 - LMT 1894 Oct 31
233Zone America/Argentina/Cordoba -4:16:48 - LMT 1894 Oct 31
188 -4:16:48 - CMT 1920 May
189 -4:00 - ART 1930 Dec
190 -4:00 Arg AR%sT 1969 Oct 5
191 -3:00 Arg AR%sT 1991 Mar 3
192 -4:00 - WART 1991 Oct 20
193 -3:00 Arg AR%sT 1999 Oct 3
194 -4:00 Arg AR%sT 2000 Mar 3
195 -3:00 - ART
196#
234 -4:16:48 - CMT 1920 May
235 -4:00 - ART 1930 Dec
236 -4:00 Arg AR%sT 1969 Oct 5
237 -3:00 Arg AR%sT 1991 Mar 3
238 -4:00 - WART 1991 Oct 20
239 -3:00 Arg AR%sT 1999 Oct 3
240 -4:00 Arg AR%sT 2000 Mar 3
241 -3:00 - ART
242#
243# Tucuman (TM)
244Zone America/Argentina/Tucuman -4:20:52 - LMT 1894 Oct 31
245 -4:16:48 - CMT 1920 May
246 -4:00 - ART 1930 Dec
247 -4:00 Arg AR%sT 1969 Oct 5
248 -3:00 Arg AR%sT 1991 Mar 3
249 -4:00 - WART 1991 Oct 20
250 -3:00 Arg AR%sT 1999 Oct 3
251 -4:00 Arg AR%sT 2000 Mar 3
252 -3:00 - ART 2004 Jun 1
253 -4:00 - WART 2004 Jun 13
254 -3:00 - ART
255#
256# La Rioja (LR)
257Zone America/Argentina/La_Rioja -4:27:24 - LMT 1894 Oct 31
258 -4:16:48 - CMT 1920 May
259 -4:00 - ART 1930 Dec
260 -4:00 Arg AR%sT 1969 Oct 5
261 -3:00 Arg AR%sT 1991 Mar 1
262 -4:00 - WART 1991 May 7
263 -3:00 Arg AR%sT 1999 Oct 3
264 -4:00 Arg AR%sT 2000 Mar 3
265 -3:00 - ART 2004 Jun 1
266 -4:00 - WART 2004 Jun 20
267 -3:00 - ART
268#
269# San Juan (SJ)
270Zone America/Argentina/San_Juan -4:34:04 - LMT 1894 Oct 31
271 -4:16:48 - CMT 1920 May
272 -4:00 - ART 1930 Dec
273 -4:00 Arg AR%sT 1969 Oct 5
274 -3:00 Arg AR%sT 1991 Mar 1
275 -4:00 - WART 1991 May 7
276 -3:00 Arg AR%sT 1999 Oct 3
277 -4:00 Arg AR%sT 2000 Mar 3
278 -3:00 - ART 2004 May 31
279 -4:00 - WART 2004 Jul 25
280 -3:00 - ART
281#
197# Jujuy (JY)
282# Jujuy (JY)
198Zone America/Jujuy -4:21:12 - LMT 1894 Oct 31
283Zone America/Argentina/Jujuy -4:21:12 - LMT 1894 Oct 31
199 -4:16:48 - CMT 1920 May
200 -4:00 - ART 1930 Dec
201 -4:00 Arg AR%sT 1969 Oct 5
202 -3:00 Arg AR%sT 1990 Mar 4
203 -4:00 - WART 1990 Oct 28
204 -4:00 1:00 WARST 1991 Mar 17
205 -4:00 - WART 1991 Oct 6
206 -3:00 1:00 ARST 1992
207 -3:00 Arg AR%sT 1999 Oct 3
208 -4:00 Arg AR%sT 2000 Mar 3
209 -3:00 - ART
210#
211# Catamarca (CT)
284 -4:16:48 - CMT 1920 May
285 -4:00 - ART 1930 Dec
286 -4:00 Arg AR%sT 1969 Oct 5
287 -3:00 Arg AR%sT 1990 Mar 4
288 -4:00 - WART 1990 Oct 28
289 -4:00 1:00 WARST 1991 Mar 17
290 -4:00 - WART 1991 Oct 6
291 -3:00 1:00 ARST 1992
292 -3:00 Arg AR%sT 1999 Oct 3
293 -4:00 Arg AR%sT 2000 Mar 3
294 -3:00 - ART
295#
296# Catamarca (CT)
212Zone America/Catamarca -4:23:08 - LMT 1894 Oct 31
297Zone America/Argentina/Catamarca -4:23:08 - LMT 1894 Oct 31
213 -4:16:48 - CMT 1920 May
214 -4:00 - ART 1930 Dec
215 -4:00 Arg AR%sT 1969 Oct 5
216 -3:00 Arg AR%sT 1991 Mar 3
217 -4:00 - WART 1991 Oct 20
218 -3:00 Arg AR%sT 1999 Oct 3
219 -4:00 Arg AR%sT 2000 Mar 3
298 -4:16:48 - CMT 1920 May
299 -4:00 - ART 1930 Dec
300 -4:00 Arg AR%sT 1969 Oct 5
301 -3:00 Arg AR%sT 1991 Mar 3
302 -4:00 - WART 1991 Oct 20
303 -3:00 Arg AR%sT 1999 Oct 3
304 -4:00 Arg AR%sT 2000 Mar 3
305 -3:00 - ART 2004 Jun 1
306 -4:00 - WART 2004 Jun 20
220 -3:00 - ART
221#
222# Mendoza (MZ)
307 -3:00 - ART
308#
309# Mendoza (MZ)
223Zone America/Mendoza -4:35:16 - LMT 1894 Oct 31
310Zone America/Argentina/Mendoza -4:35:16 - LMT 1894 Oct 31
224 -4:16:48 - CMT 1920 May
225 -4:00 - ART 1930 Dec
226 -4:00 Arg AR%sT 1969 Oct 5
227 -3:00 Arg AR%sT 1990 Mar 4
228 -4:00 - WART 1990 Oct 15
229 -4:00 1:00 WARST 1991 Mar 1
230 -4:00 - WART 1991 Oct 15
231 -4:00 1:00 WARST 1992 Mar 1
232 -4:00 - WART 1992 Oct 18
233 -3:00 Arg AR%sT 1999 Oct 3
234 -4:00 Arg AR%sT 2000 Mar 3
311 -4:16:48 - CMT 1920 May
312 -4:00 - ART 1930 Dec
313 -4:00 Arg AR%sT 1969 Oct 5
314 -3:00 Arg AR%sT 1990 Mar 4
315 -4:00 - WART 1990 Oct 15
316 -4:00 1:00 WARST 1991 Mar 1
317 -4:00 - WART 1991 Oct 15
318 -4:00 1:00 WARST 1992 Mar 1
319 -4:00 - WART 1992 Oct 18
320 -3:00 Arg AR%sT 1999 Oct 3
321 -4:00 Arg AR%sT 2000 Mar 3
322 -3:00 - ART 2004 May 23
323 -4:00 - WART 2004 Sep 26
235 -3:00 - ART
324 -3:00 - ART
325#
326# Chubut (CH)
327# The name "Comodoro Rivadavia" exceeds the 14-byte POSIX limit.
328Zone America/Argentina/ComodRivadavia -4:30:00 - LMT 1894 Oct 31
329 -4:16:48 - CMT 1920 May
330 -4:00 - ART 1930 Dec
331 -4:00 Arg AR%sT 1969 Oct 5
332 -3:00 Arg AR%sT 1991 Mar 3
333 -4:00 - WART 1991 Oct 20
334 -3:00 Arg AR%sT 1999 Oct 3
335 -4:00 Arg AR%sT 2000 Mar 3
336 -3:00 - ART 2004 Jun 1
337 -4:00 - WART 2004 Jun 20
338 -3:00 - ART
339#
340# Santa Cruz (SC)
341Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31
342 -4:16:48 - CMT 1920 May # Cordoba Mean Time
343 -4:00 - ART 1930 Dec
344 -4:00 Arg AR%sT 1969 Oct 5
345 -3:00 Arg AR%sT 1999 Oct 3
346 -4:00 Arg AR%sT 2000 Mar 3
347 -3:00 - ART 2004 Jun 1
348 -4:00 - WART 2004 Jun 20
349 -3:00 - ART
350#
351# Tierra del Fuego, Antartida e Islas del Atlantico Sur (TF)
352Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31
353 -4:16:48 - CMT 1920 May # Cordoba Mean Time
354 -4:00 - ART 1930 Dec
355 -4:00 Arg AR%sT 1969 Oct 5
356 -3:00 Arg AR%sT 1999 Oct 3
357 -4:00 Arg AR%sT 2000 Mar 3
358 -3:00 - ART 2004 May 30
359 -4:00 - WART 2004 Jun 20
360 -3:00 - ART
236
237# Aruba
238# Zone NAME GMTOFF RULES FORMAT [UNTIL]
239Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad
240 -4:30 - ANT 1965 # Netherlands Antilles Time
241 -4:00 - AST
242
243# Bolivia

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304# take place on October 27th.
305#
306# The reason why the DST will only begin November 3rd is that the thousands
307# of electoral machines used cannot have their time changed, and since the
308# Constitution says the elections must begin at 8:00 AM and end at 5:00 PM,
309# the Government decided to postpone DST, instead of changing the Constitution
310# (maybe, for the next elections, it will be possible to change the clock)...
311
361
362# Aruba
363# Zone NAME GMTOFF RULES FORMAT [UNTIL]
364Zone America/Aruba -4:40:24 - LMT 1912 Feb 12 # Oranjestad
365 -4:30 - ANT 1965 # Netherlands Antilles Time
366 -4:00 - AST
367
368# Bolivia

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429# take place on October 27th.
430#
431# The reason why the DST will only begin November 3rd is that the thousands
432# of electoral machines used cannot have their time changed, and since the
433# Constitution says the elections must begin at 8:00 AM and end at 5:00 PM,
434# the Government decided to postpone DST, instead of changing the Constitution
435# (maybe, for the next elections, it will be possible to change the clock)...
436
437# From Rodrigo Severo (2004-10-04):
438# It's just the biannual change made necessary by the much hyped, supposedly
439# modern Brazilian eletronic voting machines which, apparently, can't deal
440# with a time change between the first and the second rounds of the elections.
441
312# From Paul Eggert (2002-10-10):
313# The official decrees referenced below are mostly taken from
314# <a href="http://pcdsh01.on.br/DecHV.html">
315# Decretos sobre o Horario de Verao no Brasil
316# </a> (2001-09-20, in Portuguese).
317# The official site for all decrees, including those not related to time, is
318# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/principal_ano.htm">
319# Presidencia da Republica, Subchefia para Assuntos Juridicos, Decretos

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384Rule Brazil 1991 only - Oct 20 0:00 1:00 S
385Rule Brazil 1992 only - Feb 9 0:00 0 -
386# <a href="http://pcdsh01.on.br/HV1992.htm">Unnumbered decree</a> (1992-10-16)
387# adopted by same states.
388Rule Brazil 1992 only - Oct 25 0:00 1:00 S
389Rule Brazil 1993 only - Jan 31 0:00 0 -
390# Decree <a href="http://pcdsh01.on.br/HV942.htm">942</a> (1993-09-28)
391# adopted by same states, plus AM.
442# From Paul Eggert (2002-10-10):
443# The official decrees referenced below are mostly taken from
444# <a href="http://pcdsh01.on.br/DecHV.html">
445# Decretos sobre o Horario de Verao no Brasil
446# </a> (2001-09-20, in Portuguese).
447# The official site for all decrees, including those not related to time, is
448# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/principal_ano.htm">
449# Presidencia da Republica, Subchefia para Assuntos Juridicos, Decretos

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514Rule Brazil 1991 only - Oct 20 0:00 1:00 S
515Rule Brazil 1992 only - Feb 9 0:00 0 -
516# <a href="http://pcdsh01.on.br/HV1992.htm">Unnumbered decree</a> (1992-10-16)
517# adopted by same states.
518Rule Brazil 1992 only - Oct 25 0:00 1:00 S
519Rule Brazil 1993 only - Jan 31 0:00 0 -
520# Decree <a href="http://pcdsh01.on.br/HV942.htm">942</a> (1993-09-28)
521# adopted by same states, plus AM.
392# Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22)
393# adopted by same states, minus AM.
522# Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22;
523# web page corrected 2004-01-07) adopted by same states, minus AM.
394# Decree <a href="http://pcdsh01.on.br/HV1636.htm">1,636</a> (1995-09-14)
524# Decree <a href="http://pcdsh01.on.br/HV1636.htm">1,636</a> (1995-09-14)
395# adopted by same states, plus TO.
525# adopted by same states, plus MT and TO.
396# Decree <a href="http://pcdsh01.on.br/HV1674.htm">1,674</a> (1995-10-13)
397# adds AL, SE.
398Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S
399Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 -
400Rule Brazil 1996 only - Feb 11 0:00 0 -
401# Decree <a href="http://pcdsh01.on.br/HV2000.htm">2,000</a> (1996-09-04)
402# adopted by same states, minus AL, SE.
403Rule Brazil 1996 only - Oct 6 0:00 1:00 S

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440# (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE.
441Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S
442Rule Brazil 2001 max - Feb Sun>=15 0:00 0 -
443# Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE.
444# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm"></a>
445Rule Brazil 2002 only - Nov 3 0:00 1:00 S
446# Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO.
447# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm"></a>
526# Decree <a href="http://pcdsh01.on.br/HV1674.htm">1,674</a> (1995-10-13)
527# adds AL, SE.
528Rule Brazil 1993 1995 - Oct Sun>=11 0:00 1:00 S
529Rule Brazil 1994 1995 - Feb Sun>=15 0:00 0 -
530Rule Brazil 1996 only - Feb 11 0:00 0 -
531# Decree <a href="http://pcdsh01.on.br/HV2000.htm">2,000</a> (1996-09-04)
532# adopted by same states, minus AL, SE.
533Rule Brazil 1996 only - Oct 6 0:00 1:00 S

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570# (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE.
571Rule Brazil 2000 2001 - Oct Sun>=8 0:00 1:00 S
572Rule Brazil 2001 max - Feb Sun>=15 0:00 0 -
573# Decree 4,399 (2002-10-01) repeals DST in AL, CE, MA, PB, PE, PI, RN, SE.
574# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2002/D4399.htm"></a>
575Rule Brazil 2002 only - Nov 3 0:00 1:00 S
576# Decree 4,844 (2003-09-24; corrected 2003-09-26) repeals DST in BA, MT, TO.
577# <a href="http://www.presidencia.gov.br/CCIVIL/decreto/2003/D4844.htm"></a>
448Rule Brazil 2003 max - Oct Sun>=15 0:00 1:00 S
578Rule Brazil 2003 only - Oct 19 0:00 1:00 S
579# Decree 5,223 (2004-10-01) reestablishes DST in MT.
580# <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2004/Decreto/D5223.htm"></a>
581Rule Brazil 2004 only - Nov 2 0:00 1:00 S
449# The latest ruleset listed above says that the following states observe DST:
582# The latest ruleset listed above says that the following states observe DST:
450# DF, ES, GO, MG, MS, PR, RJ, RS, SC, SP.
583# DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP.
451#
584#
452# For dates after mid-2004, the above rules with TO="max" are guesses
585Rule Brazil 2005 max - Oct Sun>=15 0:00 1:00 S
586# For dates after mid-2005, the above rules with TO="max" are guesses
453# and are quite possibly wrong, but are more likely than no DST at all.
454
455
456# Zone NAME GMTOFF RULES FORMAT [UNTIL]
457#
587# and are quite possibly wrong, but are more likely than no DST at all.
588
589
590# Zone NAME GMTOFF RULES FORMAT [UNTIL]
591#
458# Atlantic islands: Fernando de Noronha, Trindade, Martin Vaz,
459# Atol das Rocas, and Penedos de Sao Pedro e Sao Paulo
592# Fernando de Noronha (administratively part of PE)
460Zone America/Noronha -2:09:40 - LMT 1914
461 -2:00 Brazil FN%sT 1990 Sep 17
593Zone America/Noronha -2:09:40 - LMT 1914
594 -2:00 Brazil FN%sT 1990 Sep 17
595 -2:00 - FNT 1999 Sep 30
596 -2:00 Brazil FN%sT 2000 Oct 15
597 -2:00 - FNT 2001 Sep 13
598 -2:00 Brazil FN%sT 2002 Oct 1
462 -2:00 - FNT
599 -2:00 - FNT
600# Other Atlantic islands have no permanent settlement.
601# These include Trindade and Martin Vaz (administratively part of ES),
602# Atol das Rocas (RN), and Penedos de Sao Pedro e Sao Paulo (PE).
603# Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01;
604# it also included the Penedos.
463#
464# Amapa (AP), east Para (PA)
465# East Para includes Belem, Maraba, Serra Norte, and Sao Felix do Xingu.
466# The division between east and west Para is the river Xingu.
467# In the north a very small part from the river Javary (now Jari I guess,
468# the border with Amapa) to the Amazon, then to the Xingu.
469Zone America/Belem -3:13:56 - LMT 1914
470 -3:00 Brazil BR%sT 1988 Sep 12

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524#
525# Mato Grosso do Sul (MS)
526Zone America/Campo_Grande -3:38:28 - LMT 1914
527 -4:00 Brazil AM%sT
528#
529# Mato Grosso (MT)
530Zone America/Cuiaba -3:44:20 - LMT 1914
531 -4:00 Brazil AM%sT 2003 Sep 24
605#
606# Amapa (AP), east Para (PA)
607# East Para includes Belem, Maraba, Serra Norte, and Sao Felix do Xingu.
608# The division between east and west Para is the river Xingu.
609# In the north a very small part from the river Javary (now Jari I guess,
610# the border with Amapa) to the Amazon, then to the Xingu.
611Zone America/Belem -3:13:56 - LMT 1914
612 -3:00 Brazil BR%sT 1988 Sep 12

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666#
667# Mato Grosso do Sul (MS)
668Zone America/Campo_Grande -3:38:28 - LMT 1914
669 -4:00 Brazil AM%sT
670#
671# Mato Grosso (MT)
672Zone America/Cuiaba -3:44:20 - LMT 1914
673 -4:00 Brazil AM%sT 2003 Sep 24
532 -4:00 - AMT
674 -4:00 - AMT 2004 Oct 4
675 -4:00 Brazil AM%sT
533#
534# west Para (PA), Rondonia (RO)
535# West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem.
536Zone America/Porto_Velho -4:15:36 - LMT 1914
537 -4:00 Brazil AM%sT 1988 Sep 12
538 -4:00 - AMT
539#
540# Roraima (RR)

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806# Zone NAME GMTOFF RULES FORMAT [UNTIL]
807Zone America/Asuncion -3:50:40 - LMT 1890
808 -3:50:40 - AMT 1931 Oct 10 # Asuncion Mean Time
809 -4:00 - PYT 1972 Oct # Paraguay Time
810 -3:00 - PYT 1974 Apr
811 -4:00 Para PY%sT
812
813# Peru
676#
677# west Para (PA), Rondonia (RO)
678# West Para includes Altamira, Oribidos, Prainha, Oriximina, and Santarem.
679Zone America/Porto_Velho -4:15:36 - LMT 1914
680 -4:00 Brazil AM%sT 1988 Sep 12
681 -4:00 - AMT
682#
683# Roraima (RR)

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949# Zone NAME GMTOFF RULES FORMAT [UNTIL]
950Zone America/Asuncion -3:50:40 - LMT 1890
951 -3:50:40 - AMT 1931 Oct 10 # Asuncion Mean Time
952 -4:00 - PYT 1972 Oct # Paraguay Time
953 -3:00 - PYT 1974 Apr
954 -4:00 Para PY%sT
955
956# Peru
957#
958# <a href="news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net">
959# From Evelyn C. Leeper via Mark Brader (2003-10-26):</a>
960# When we were in Peru in 1985-1986, they apparently switched over
961# sometime between December 29 and January 3 while we were on the Amazon.
962#
963# From Paul Eggert (2003-11-02):
964# Shanks doesn't have this transition. Assume 1986 was like 1987.
965
814# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
815Rule Peru 1938 only - Jan 1 0:00 1:00 S
816Rule Peru 1938 only - Apr 1 0:00 0 -
817Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S
818Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 -
966# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
967Rule Peru 1938 only - Jan 1 0:00 1:00 S
968Rule Peru 1938 only - Apr 1 0:00 0 -
969Rule Peru 1938 1939 - Sep lastSun 0:00 1:00 S
970Rule Peru 1939 1940 - Mar Sun>=24 0:00 0 -
819Rule Peru 1987 only - Jan 1 0:00 1:00 S
820Rule Peru 1987 only - Apr 1 0:00 0 -
971Rule Peru 1986 1987 - Jan 1 0:00 1:00 S
972Rule Peru 1986 1987 - Apr 1 0:00 0 -
821Rule Peru 1990 only - Jan 1 0:00 1:00 S
822Rule Peru 1990 only - Apr 1 0:00 0 -
823# IATA is ambiguous for 1993/1995; go with Shanks.
824Rule Peru 1994 only - Jan 1 0:00 1:00 S
825Rule Peru 1994 only - Apr 1 0:00 0 -
826# Zone NAME GMTOFF RULES FORMAT [UNTIL]
827Zone America/Lima -5:08:12 - LMT 1890
828 -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time?

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896Rule Uruguay 1989 only - Mar 12 0:00 0 -
897Rule Uruguay 1989 only - Oct 29 0:00 1:00 S
898# Shanks says no DST was observed in 1990/1 and 1991/2,
899# and that 1992/3's DST was from 10-25 to 03-01. Go with IATA.
900Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 -
901Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S
902Rule Uruguay 1992 only - Oct 18 0:00 1:00 S
903Rule Uruguay 1993 only - Feb 28 0:00 0 -
973Rule Peru 1990 only - Jan 1 0:00 1:00 S
974Rule Peru 1990 only - Apr 1 0:00 0 -
975# IATA is ambiguous for 1993/1995; go with Shanks.
976Rule Peru 1994 only - Jan 1 0:00 1:00 S
977Rule Peru 1994 only - Apr 1 0:00 0 -
978# Zone NAME GMTOFF RULES FORMAT [UNTIL]
979Zone America/Lima -5:08:12 - LMT 1890
980 -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time?

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1048Rule Uruguay 1989 only - Mar 12 0:00 0 -
1049Rule Uruguay 1989 only - Oct 29 0:00 1:00 S
1050# Shanks says no DST was observed in 1990/1 and 1991/2,
1051# and that 1992/3's DST was from 10-25 to 03-01. Go with IATA.
1052Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 -
1053Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S
1054Rule Uruguay 1992 only - Oct 18 0:00 1:00 S
1055Rule Uruguay 1993 only - Feb 28 0:00 0 -
1056# From Eduardo Cota (2004-09-20):
1057# The uruguayan government has decreed a change in the local time....
1058# http://www.presidencia.gub.uy/decretos/2004091502.htm
1059Rule Uruguay 2004 only - Sep Sun>=15 0:00 1:00 S
1060Rule Uruguay 2005 only - Mar Sun>=8 0:00 0 -
904# Zone NAME GMTOFF RULES FORMAT [UNTIL]
905Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28
906 -3:44:44 - MMT 1920 May 1 # Montevideo MT
907 -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time
908 -3:00 Uruguay UY%sT
909
910# Venezuela
911# Zone NAME GMTOFF RULES FORMAT [UNTIL]
912Zone America/Caracas -4:27:44 - LMT 1890
913 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time?
914 -4:30 - VET 1965 # Venezuela Time
915 -4:00 - VET
1061# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1062Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28
1063 -3:44:44 - MMT 1920 May 1 # Montevideo MT
1064 -3:30 Uruguay UY%sT 1942 Dec 14 # Uruguay Time
1065 -3:00 Uruguay UY%sT
1066
1067# Venezuela
1068# Zone NAME GMTOFF RULES FORMAT [UNTIL]
1069Zone America/Caracas -4:27:44 - LMT 1890
1070 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time?
1071 -4:30 - VET 1965 # Venezuela Time
1072 -4:00 - VET