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southamerica (176974) southamerica (177591)
1# @(#)southamerica 8.18
1# @(#)southamerica 8.19
2# <pre>
3
4# This data is by no means authoritative; if you think you know better,
5# go ahead and edit the file (and please send any changes to
6# tz@elsie.nci.nih.gov for general use in the future).
7
8# From Paul Eggert (2006-03-22):
9# A good source for time zone historical data outside the U.S. is

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223# From Mariano Absatz (2004-10-05):
224# San Juan changed from UTC-03:00 to UTC-04:00 at midnight between
225# Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00
226# at midnight between Saturday, July 24th and Sunday, July 25th....
227# http://www.sanjuan.gov.ar/prensa/archivo/000329.html
228# http://www.sanjuan.gov.ar/prensa/archivo/000426.html
229# http://www.sanjuan.gov.ar/prensa/archivo/000441.html
230
2# <pre>
3
4# This data is by no means authoritative; if you think you know better,
5# go ahead and edit the file (and please send any changes to
6# tz@elsie.nci.nih.gov for general use in the future).
7
8# From Paul Eggert (2006-03-22):
9# A good source for time zone historical data outside the U.S. is

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223# From Mariano Absatz (2004-10-05):
224# San Juan changed from UTC-03:00 to UTC-04:00 at midnight between
225# Sunday, May 30th and Monday, May 31st. It changed back to UTC-03:00
226# at midnight between Saturday, July 24th and Sunday, July 25th....
227# http://www.sanjuan.gov.ar/prensa/archivo/000329.html
228# http://www.sanjuan.gov.ar/prensa/archivo/000426.html
229# http://www.sanjuan.gov.ar/prensa/archivo/000441.html
230
231# From Alex Krivenyshev (2008-01-17):
232# Here are articles that Argentina Province San Luis is planning to end DST
233# as earlier as upcoming Monday January 21, 2008 or February 2008:
234#
235# Provincia argentina retrasa reloj y marca diferencia con resto del pais
236# (Argentine Province delayed clock and mark difference with the rest of the
237# country)
238# <a href="http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel">
239# http://cl.invertia.com/noticias/noticia.aspx?idNoticia=200801171849_EFE_ET4373&idtel
240# </a>
241#
242# Es inminente que en San Luis atrasen una hora los relojes
243# (It is imminent in San Luis clocks one hour delay)
244# <a href="http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414">
245# http://www.lagaceta.com.ar/vernotae.asp?id_nota=253414
246# </a>
247#
248# <a href="http://www.worldtimezone.net/dst_news/dst_news_argentina02.html">
249# http://www.worldtimezone.net/dst_news/dst_news_argentina02.html
250# </a>
251
252# From Jesper Norgaard Welen (2008-01-18):
253# The page of the San Luis provincial government
254# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812">
255# http://www.sanluis.gov.ar/notas.asp?idCanal=0&id=22812
256# </a>
257# confirms what Alex Krivenyshev has earlier sent to the tz
258# emailing list about that San Luis plans to return to standard
259# time much earlier than the rest of the country. It also
260# confirms that upon request the provinces San Juan and Mendoza
261# refused to follow San Luis in this change.
262#
263# The change is supposed to take place Monday the 21.st at 0:00
264# hours. As far as I understand it if this goes ahead, we need
265# a new timezone for San Luis (although there are also documented
266# independent changes in the southamerica file of San Luis in
267# 1990 and 1991 which has not been confirmed).
268
269# From Jesper Norgaard Welen (2008-01-25):
270# Unfortunately the below page has become defunct, about the San Luis
271# time change. Perhaps because it now is part of a group of pages "Most
272# important pages of 2008."
273#
274# You can use
275# <a href="http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834">
276# http://www.sanluis.gov.ar/notas.asp?idCanal=8141&id=22834
277# </a>
278# instead it seems. Or use "Buscador" from the main page of the San Luis
279# government, and fill in "huso" and click OK, and you will get 3 pages
280# from which the first one is identical to the above.
281
282# From Mariano Absatz (2008-01-28):
283# I can confirm that the Province of San Luis (and so far only that
284# province) decided to go back to UTC-3 effective midnight Jan 20th 2008
285# (that is, Monday 21st at 0:00 is the time the clocks were delayed back
286# 1 hour), and they intend to keep UTC-3 as their timezone all year round
287# (that is, unless they change their mind any minute now).
288#
289# So we'll have to add yet another city to 'southamerica' (I think San
290# Luis city is the mos populated city in the Province, so it'd be
291# America/Argentina/San_Luis... of course I can't remember if San Luis's
292# history of particular changes goes along with Mendoza or San Juan :-(
293# (I only remember not being able to collect hard facts about San Luis
294# back in 2004, when these provinces changed to UTC-4 for a few days, I
295# mailed them personally and never got an answer).
296
297# From Arthur David Olson (2008-03-15):
298# Until there's better information, asssume San Luis was like San Juan
299# rather than Mendoza (since San Juan has a simpler DST history).
300
231# Unless otherwise specified, data are from Shanks & Pottenger through 1992,
232# from the IATA otherwise. As noted below, Shanks & Pottenger say that
233# America/Cordoba split into 6 subregions during 1991/1992, but we
234# haven't verified this yet so for now we'll keep it a single region.
235#
236# Zone NAME GMTOFF RULES FORMAT [UNTIL]
237#
238# Buenos Aires (BA), Capital Federal (CF),

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345 -4:00 1:00 WARST 1992 Mar 1
346 -4:00 - WART 1992 Oct 18
347 -3:00 Arg AR%sT 1999 Oct 3
348 -4:00 Arg AR%sT 2000 Mar 3
349 -3:00 - ART 2004 May 23
350 -4:00 - WART 2004 Sep 26
351 -3:00 Arg AR%sT
352#
301# Unless otherwise specified, data are from Shanks & Pottenger through 1992,
302# from the IATA otherwise. As noted below, Shanks & Pottenger say that
303# America/Cordoba split into 6 subregions during 1991/1992, but we
304# haven't verified this yet so for now we'll keep it a single region.
305#
306# Zone NAME GMTOFF RULES FORMAT [UNTIL]
307#
308# Buenos Aires (BA), Capital Federal (CF),

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415 -4:00 1:00 WARST 1992 Mar 1
416 -4:00 - WART 1992 Oct 18
417 -3:00 Arg AR%sT 1999 Oct 3
418 -4:00 Arg AR%sT 2000 Mar 3
419 -3:00 - ART 2004 May 23
420 -4:00 - WART 2004 Sep 26
421 -3:00 Arg AR%sT
422#
423# San Luis (SL)
424Zone America/Argentina/San_Luis -4:25:24 - LMT 1894 Oct 31
425 -4:16:48 - CMT 1920 May
426 -4:00 - ART 1930 Dec
427 -4:00 Arg AR%sT 1969 Oct 5
428 -3:00 Arg AR%sT 1991 Mar 1
429 -4:00 - WART 1991 May 7
430 -3:00 Arg AR%sT 1999 Oct 3
431 -4:00 Arg AR%sT 2000 Mar 3
432 -3:00 - ART 2004 May 31
433 -4:00 - WART 2004 Jul 25
434 -3:00 Arg AR%sT 2008 Jan 21
435 -3:00 - ART
436#
353# Santa Cruz (SC)
354Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31
355 -4:16:48 - CMT 1920 May # Cordoba Mean Time
356 -4:00 - ART 1930 Dec
357 -4:00 Arg AR%sT 1969 Oct 5
358 -3:00 Arg AR%sT 1999 Oct 3
359 -4:00 Arg AR%sT 2000 Mar 3
360 -3:00 - ART 2004 Jun 1

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437# Santa Cruz (SC)
438Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT 1894 Oct 31
439 -4:16:48 - CMT 1920 May # Cordoba Mean Time
440 -4:00 - ART 1930 Dec
441 -4:00 Arg AR%sT 1969 Oct 5
442 -3:00 Arg AR%sT 1999 Oct 3
443 -4:00 Arg AR%sT 2000 Mar 3
444 -3:00 - ART 2004 Jun 1

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