make/sun/javazic/tzdata/southamerica

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  10 # This code is distributed in the hope that it will be useful, but WITHOUT
  11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13 # version 2 for more details (a copy is included in the LICENSE file that
  14 # accompanied this code).
  15 #  
  16 # You should have received a copy of the GNU General Public License version
  17 # 2 along with this work; if not, write to the Free Software Foundation,
  18 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19 #  
  20 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21 # or visit www.oracle.com if you need additional information or have any
  22 # questions.
  23 #
  24 # <pre>
  25 # This file is in the public domain, so clarified as of
  26 # 2009-05-17 by Arthur David Olson.
  27 
  28 # This data is by no means authoritative; if you think you know better,
  29 # go ahead and edit the file (and please send any changes to
  30 # tz@elsie.nci.nih.gov for general use in the future).
  31 
  32 # From Paul Eggert (2006-03-22):
  33 # A good source for time zone historical data outside the U.S. is
  34 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
  35 # San Diego: ACS Publications, Inc. (2003).
  36 #




  37 # Gwillim Law writes that a good source
  38 # for recent time zone data is the International Air Transport
  39 # Association's Standard Schedules Information Manual (IATA SSIM),
  40 # published semiannually.  Law sent in several helpful summaries
  41 # of the IATA's data after 1990.
  42 #
  43 # Except where otherwise noted, Shanks & Pottenger is the source for
  44 # entries through 1990, and IATA SSIM is the source for entries afterwards.
  45 #
  46 # Earlier editions of these tables used the North American style (e.g. ARST and
  47 # ARDT for Argentine Standard and Daylight Time), but the following quote
  48 # suggests that it's better to use European style (e.g. ART and ARST).
  49 #       I suggest the use of _Summer time_ instead of the more cumbersome
  50 #       _daylight-saving time_.  _Summer time_ seems to be in general use
  51 #       in Europe and South America.
  52 #       -- E O Cutler, _New York Times_ (1937-02-14), quoted in
  53 #       H L Mencken, _The American Language: Supplement I_ (1960), p 466
  54 #
  55 # Earlier editions of these tables also used the North American style
  56 # for time zones in Brazil, but this was incorrect, as Brazilians say


 387 # America/Cordoba split into 6 subregions during 1991/1992, one of which
 388 # was America/San_Luis, but we haven't verified this yet so for now we'll
 389 # keep America/Cordoba a single region rather than splitting it into the
 390 # other 5 subregions.
 391 
 392 # From Mariano Absatz (2009-03-13):
 393 # Yesterday (with our usual 2-day notice) the Province of San Luis
 394 # decided that next Sunday instead of "staying" @utc-03:00 they will go
 395 # to utc-04:00 until the second Saturday in October...
 396 #
 397 # The press release is at
 398 # <a href="http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102">
 399 # http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102
 400 # </a>
 401 # (I couldn't find the decree, but
 402 # <a href="http://www.sanluis.gov.ar">
 403 # www.sanluis.gov.ar
 404 # <a/>
 405 # is the official page for the Province Government).
 406 #
 407 # There's also a note in only one of the major national papers (La Nación) at
 408 # <a href="http://www.lanacion.com.ar/nota.asp?nota_id=1107912">
 409 # http://www.lanacion.com.ar/nota.asp?nota_id=1107912
 410 # </a>
 411 #
 412 # The press release says:
 413 #  (...) anunció que el próximo domingo a las 00:00 los puntanos deberán
 414 # atrasar una hora sus relojes.
 415 #
 416 # A partir de entonces, San Luis establecerá el huso horario propio de
 417 # la Provincia. De esta manera, durante el periodo del calendario anual
 418 # 2009, el cambio horario quedará comprendido entre las 00:00 del tercer
 419 # domingo de marzo y las 24:00 del segundo sábado de octubre.
 420 # Quick&dirty translation
 421 # (...) announced that next Sunday, at 00:00, Puntanos (the San Luis
 422 # inhabitants) will have to turn back one hour their clocks
 423 #
 424 # Since then, San Luis will establish its own Province timezone. Thus,
 425 # during 2009, this timezone change will run from 00:00 the third Sunday
 426 # in March until 24:00 of the second Saturday in October.
 427 
 428 # From Mariano Absatz (2009-10-16):
 429 # ...the Province of San Luis is a case in itself.
 430 #
 431 # The Law at
 432 # <a href="http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276>"
 433 # http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276
 434 # </a>
 435 # is ambiguous because establishes a calendar from the 2nd Sunday in
 436 # October at 0:00 thru the 2nd Saturday in March at 24:00 and the
 437 # complement of that starting on the 2nd Sunday of March at 0:00 and
 438 # ending on the 2nd Saturday of March at 24:00.
 439 #
 440 # This clearly breaks every time the 1st of March or October is a Sunday.
 441 #


 463 # According to news reports from El Diario de la Republica Province San
 464 # Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time
 465 # after April 11, 2010--will continue to have same time as rest of
 466 # Argentina (UTC-3) (no DST).
 467 #
 468 # Confirmaron la pr&oacute;rroga del huso horario de verano (Spanish)
 469 # <a href="http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9">
 470 # http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9
 471 # </a>
 472 # or (some English translation):
 473 # <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina08.html">
 474 # http://www.worldtimezone.com/dst_news/dst_news_argentina08.html
 475 # </a>
 476 
 477 # From Mariano Absatz (2010-04-12):
 478 # yes...I can confirm this...and given that San Luis keeps calling
 479 # UTC-03:00 "summer time", we should't just let San Luis go back to "Arg"
 480 # rules...San Luis is still using "Western ARgentina Time" and it got
 481 # stuck on Summer daylight savings time even though the summer is over.
 482 



 483 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 484 #
 485 # Buenos Aires (BA), Capital Federal (CF),
 486 Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31
 487                         -4:16:48 -      CMT     1920 May # Cordoba Mean Time
 488                         -4:00   -       ART     1930 Dec
 489                         -4:00   Arg     AR%sT   1969 Oct  5
 490                         -3:00   Arg     AR%sT   1999 Oct  3
 491                         -4:00   Arg     AR%sT   2000 Mar  3
 492                         -3:00   Arg     AR%sT
 493 #
 494 # Cordoba (CB), Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN),
 495 # Chaco (CC), Formosa (FM), Santiago del Estero (SE)
 496 #
 497 # Shanks & Pottenger also make the following claims, which we haven't verified:
 498 # - Formosa switched to -3:00 on 1991-01-07.
 499 # - Misiones switched to -3:00 on 1990-12-29.
 500 # - Chaco switched to -3:00 on 1991-01-04.
 501 # - Santiago del Estero switched to -4:00 on 1991-04-01,
 502 #   then to -3:00 on 1991-04-26.


 818 # We have a written a short article about it as well:
 819 # <a href="http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html">
 820 # http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html
 821 # </a>
 822 #
 823 # From Alexander Krivenyshev (2011-10-04):
 824 # State Bahia will return to Daylight savings time this year after 8 years off.
 825 # The announcement was made by Governor Jaques Wagner in an interview to a
 826 # television station in Salvador.
 827 
 828 # In Portuguese:
 829 # <a href="http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html">
 830 # http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html
 831 # </a> and
 832 # <a href="http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html">
 833 # http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html
 834 # </a>
 835 
 836 # From Guilherme Bernardes Rodrigues (2011-10-07):
 837 # There is news in the media, however there is still no decree about it.
 838 # I just send a e-mail to Zulmira Brandão at
 839 # <a href="http://pcdsh01.on.br/">http://pcdsh01.on.br/</a> the
 840 # oficial agency about time in Brazil, and she confirmed that the old rule is
 841 # still in force.
 842 
 843 # From Guilherme Bernardes Rodrigues (2011-10-14)
 844 # It's official, the President signed a decree that includes Bahia in summer
 845 # time.
 846 #        [ and in a second message (same day): ]
 847 # I found the decree.
 848 #
 849 # DECRETO No- 7.584, DE 13 DE OUTUBRO DE 2011
 850 # Link :
 851 # <a href="http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6">
 852 # http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6
 853 # </a>
 854 
 855 # From Kelley Cook (2012-10-16):
 856 # The governor of state of Bahia in Brazil announced on Thursday that
 857 # due to public pressure, he is reversing the DST policy they implemented
 858 # last year and will not be going to Summer Time on October 21st....
 859 # http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-horario-de-verao-na-bahia
 860 


1249 # Chile's clocks will go back an hour this year on the 7th of May instead
1250 # of this Saturday. They will go forward again the 3rd Saturday in
1251 # August, not in October as they have since 1968. This is a pilot plan
1252 # which will be reevaluated in 2012.
1253 
1254 # From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23):
1255 # As stated in the website of the Chilean Energy Ministry
1256 # http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html
1257 # The Chilean Government has decided to postpone the entrance into winter time
1258 # (to leave DST) from March 11 2012 to April 28th 2012. The decision has not
1259 # been yet formalized but it will within the next days.
1260 # Quote from the website communication:
1261 #
1262 # 6. For the year 2012, the dates of entry into winter time will be as follows:
1263 # a. Saturday April 28, 2012, clocks should go back 60 minutes; that is, at
1264 # 23:59:59, instead of passing to 0:00, the time should be adjusted to be 23:00
1265 # of the same day.
1266 # b. Saturday, September 1, 2012, clocks should go forward 60 minutes; that is,
1267 # at 23:59:59, instead of passing to 0:00, the time should be adjusted to be
1268 # 01:00 on September 2.
1269 #
1270 # Note that...this is yet another "temporary" change that will be reevaluated
1271 # AGAIN in 2013.




1272 
1273 # NOTE: ChileAQ rules for Antarctic bases are stored separately in the
1274 # 'antarctica' file.
1275 
1276 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1277 Rule    Chile   1927    1932    -       Sep      1      0:00    1:00    S
1278 Rule    Chile   1928    1932    -       Apr      1      0:00    0       -
1279 Rule    Chile   1942    only    -       Jun      1      4:00u   0       -
1280 Rule    Chile   1942    only    -       Aug      1      5:00u   1:00    S
1281 Rule    Chile   1946    only    -       Jul     15      4:00u   1:00    S
1282 Rule    Chile   1946    only    -       Sep      1      3:00u   0:00    -
1283 Rule    Chile   1947    only    -       Apr      1      4:00u   0       -
1284 Rule    Chile   1968    only    -       Nov      3      4:00u   1:00    S
1285 Rule    Chile   1969    only    -       Mar     30      3:00u   0       -
1286 Rule    Chile   1969    only    -       Nov     23      4:00u   1:00    S
1287 Rule    Chile   1970    only    -       Mar     29      3:00u   0       -
1288 Rule    Chile   1971    only    -       Mar     14      3:00u   0       -
1289 Rule    Chile   1970    1972    -       Oct     Sun>=9       4:00u   1:00    S
1290 Rule    Chile   1972    1986    -       Mar     Sun>=9       3:00u   0       -
1291 Rule    Chile   1973    only    -       Sep     30      4:00u   1:00    S


1294 Rule    Chile   1988    1989    -       Mar     Sun>=9       3:00u   0       -
1295 Rule    Chile   1988    only    -       Oct     Sun>=1       4:00u   1:00    S
1296 Rule    Chile   1989    only    -       Oct     Sun>=9       4:00u   1:00    S
1297 Rule    Chile   1990    only    -       Mar     18      3:00u   0       -
1298 Rule    Chile   1990    only    -       Sep     16      4:00u   1:00    S
1299 Rule    Chile   1991    1996    -       Mar     Sun>=9       3:00u   0       -
1300 Rule    Chile   1991    1997    -       Oct     Sun>=9       4:00u   1:00    S
1301 Rule    Chile   1997    only    -       Mar     30      3:00u   0       -
1302 Rule    Chile   1998    only    -       Mar     Sun>=9       3:00u   0       -
1303 Rule    Chile   1998    only    -       Sep     27      4:00u   1:00    S
1304 Rule    Chile   1999    only    -       Apr      4      3:00u   0       -
1305 Rule    Chile   1999    2010    -       Oct     Sun>=9       4:00u   1:00    S
1306 Rule    Chile   2000    2007    -       Mar     Sun>=9       3:00u   0       -
1307 # N.B.: the end of March 29 in Chile is March 30 in Universal time,
1308 # which is used below in specifying the transition.
1309 Rule    Chile   2008    only    -       Mar     30      3:00u   0       -
1310 Rule    Chile   2009    only    -       Mar     Sun>=9       3:00u   0       -
1311 Rule    Chile   2010    only    -       Apr     Sun>=1       3:00u   0       -
1312 Rule    Chile   2011    only    -       May     Sun>=2       3:00u   0       -
1313 Rule    Chile   2011    only    -       Aug     Sun>=16      4:00u   1:00    S
1314 Rule    Chile   2012    only    -       Apr     Sun>=23      3:00u   0       -
1315 Rule    Chile   2012    only    -       Sep     Sun>=2       4:00u   1:00    S
1316 Rule    Chile   2013    max     -       Mar     Sun>=9       3:00u   0       -
1317 Rule    Chile   2013    max     -       Oct     Sun>=9       4:00u   1:00    S
1318 # IATA SSIM anomalies: (1992-02) says 1992-03-14;
1319 # (1996-09) says 1998-03-08.  Ignore these.
1320 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1321 Zone America/Santiago   -4:42:46 -      LMT     1890
1322                         -4:42:46 -      SMT     1910        # Santiago Mean Time
1323                         -5:00   -       CLT     1916 Jul  1 # Chile Time
1324                         -4:42:46 -      SMT     1918 Sep  1 # Santiago Mean Time
1325                         -4:00   -       CLT     1919 Jul  1 # Chile Time
1326                         -4:42:46 -      SMT     1927 Sep  1 # Santiago Mean Time
1327                         -5:00   Chile   CL%sT   1947 May 22 # Chile Time
1328                         -4:00   Chile   CL%sT
1329 Zone Pacific/Easter     -7:17:44 -      LMT     1890
1330                         -7:17:28 -      EMT     1932 Sep    # Easter Mean Time
1331                         -7:00   Chile   EAS%sT  1982 Mar 13 21:00 # Easter I Time
1332                         -6:00   Chile   EAS%sT
1333 #
1334 # Sala y Gomez Island is like Pacific/Easter.
1335 # Other Chilean locations, including Juan Fernandez Is, San Ambrosio,
1336 # San Felix, and Antarctic bases, are like America/Santiago.
1337 
1338 # Colombia




1339 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1340 Rule    CO      1992    only    -       May      3      0:00    1:00    S
1341 Rule    CO      1993    only    -       Apr      4      0:00    0       -
1342 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1343 Zone    America/Bogota  -4:56:20 -      LMT     1884 Mar 13
1344                         -4:56:20 -      BMT     1914 Nov 23 # Bogota Mean Time
1345                         -5:00   CO      CO%sT   # Colombia Time
1346 # Malpelo, Providencia, San Andres
1347 # no information; probably like America/Bogota
1348 
1349 # Curacao


1350 #
1351 # From Paul Eggert (2006-03-22):
1352 # Shanks & Pottenger say that The Bottom and Philipsburg have been at
1353 # -4:00 since standard time was introduced on 1912-03-02; and that
1354 # Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from
1355 # 1912-02-02 to 1965-01-01.  The former is dubious, since S&P also say
1356 # Saba Island has been like Curacao.
1357 # This all predates our 1970 cutoff, though.
1358 #
1359 # By July 2007 Curacao and St Maarten are planned to become
1360 # associated states within the Netherlands, much like Aruba;
1361 # Bonaire, Saba and St Eustatius would become directly part of the
1362 # Netherlands as Kingdom Islands.  This won't affect their time zones
1363 # though, as far as we know.
1364 #
1365 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1366 Zone    America/Curacao -4:35:44 -      LMT     1912 Feb 12     # Willemstad
1367                         -4:30   -       ANT     1965 # Netherlands Antilles Time
1368                         -4:00   -       AST
1369 
1370 # From Arthur David Olson (2011-06-15):
1371 # At least for now, use links for places with new iso3166 codes.
1372 # The name "Lower Prince's Quarter" is both longer than fourteen charaters
1373 # and contains an apostrophe; use "Lower_Princes" below.
1374 
1375 Link    America/Curacao America/Lower_Princes # Sint Maarten
1376 Link    America/Curacao America/Kralendijk # Bonaire, Sint Estatius and Saba
1377 
1378 # Ecuador
1379 #


1380 # From Paul Eggert (2007-03-04):
1381 # Apparently Ecuador had a failed experiment with DST in 1992.
1382 # <http://midena.gov.ec/content/view/1261/208/> (2007-02-27) and
1383 # <http://www.hoy.com.ec/NoticiaNue.asp?row_id=249856> (2006-11-06) both
1384 # talk about "hora Sixto".  Leave this alone for now, as we have no data.
1385 #
1386 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1387 Zone America/Guayaquil  -5:19:20 -      LMT     1890
1388                         -5:14:00 -      QMT     1931 # Quito Mean Time
1389                         -5:00   -       ECT          # Ecuador Time
1390 Zone Pacific/Galapagos  -5:58:24 -      LMT     1931 # Puerto Baquerizo Moreno
1391                         -5:00   -       ECT     1986
1392                         -6:00   -       GALT         # Galapagos Time
1393 
1394 # Falklands
1395 
1396 # From Paul Eggert (2006-03-22):
1397 # Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except
1398 # the IATA gives 1996-09-08.  Go with Shanks & Pottenger.
1399 


1565 # Decree 1,867 (2004-03-05)
1566 # From Carlos Raul Perasso via Jesper Norgaard Welen (2006-10-13)
1567 # <http://www.presidencia.gov.py/decretos/D1867.pdf>
1568 Rule    Para    2004    2009    -       Oct     Sun>=15      0:00    1:00    S
1569 Rule    Para    2005    2009    -       Mar     Sun>=8       0:00    0       -
1570 # From Carlos Raul Perasso (2010-02-18):
1571 # By decree number 3958 issued yesterday (
1572 # <a href="http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf">
1573 # http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf
1574 # </a>
1575 # )
1576 # Paraguay changes its DST schedule, postponing the March rule to April and
1577 # modifying the October date. The decree reads:
1578 # ...
1579 # Art. 1. It is hereby established that from the second Sunday of the month of
1580 # April of this year (2010), the official time is to be set back 60 minutes,
1581 # and that on the first Sunday of the month of October, it is to be set
1582 # forward 60 minutes, in all the territory of the Paraguayan Republic.
1583 # ...
1584 Rule    Para    2010    max     -       Oct     Sun>=1       0:00    1:00    S
1585 Rule    Para    2010    max     -       Apr     Sun>=8       0:00    0       -









1586 
1587 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1588 Zone America/Asuncion   -3:50:40 -      LMT     1890
1589                         -3:50:40 -      AMT     1931 Oct 10 # Asuncion Mean Time
1590                         -4:00   -       PYT     1972 Oct # Paraguay Time
1591                         -3:00   -       PYT     1974 Apr
1592                         -4:00   Para    PY%sT
1593 
1594 # Peru
1595 #
1596 # <a href="news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net">
1597 # From Evelyn C. Leeper via Mark Brader (2003-10-26):</a>
1598 # When we were in Peru in 1985-1986, they apparently switched over
1599 # sometime between December 29 and January 3 while we were on the Amazon.
1600 #
1601 # From Paul Eggert (2006-03-22):
1602 # Shanks & Pottenger don't have this transition.  Assume 1986 was like 1987.
1603 
1604 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1605 Rule    Peru    1938    only    -       Jan      1      0:00    1:00    S




  10 # This code is distributed in the hope that it will be useful, but WITHOUT
  11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13 # version 2 for more details (a copy is included in the LICENSE file that
  14 # accompanied this code).
  15 #  
  16 # You should have received a copy of the GNU General Public License version
  17 # 2 along with this work; if not, write to the Free Software Foundation,
  18 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19 #  
  20 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21 # or visit www.oracle.com if you need additional information or have any
  22 # questions.
  23 #
  24 # <pre>
  25 # This file is in the public domain, so clarified as of
  26 # 2009-05-17 by Arthur David Olson.
  27 
  28 # This data is by no means authoritative; if you think you know better,
  29 # go ahead and edit the file (and please send any changes to
  30 # tz@iana.org for general use in the future).
  31 
  32 # From Paul Eggert (2006-03-22):
  33 # A good source for time zone historical data outside the U.S. is
  34 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
  35 # San Diego: ACS Publications, Inc. (2003).
  36 #
  37 # For data circa 1899, a common source is:
  38 # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
  39 # <http://www.jstor.org/stable/1774359>.
  40 #
  41 # Gwillim Law writes that a good source
  42 # for recent time zone data is the International Air Transport
  43 # Association's Standard Schedules Information Manual (IATA SSIM),
  44 # published semiannually.  Law sent in several helpful summaries
  45 # of the IATA's data after 1990.
  46 #
  47 # Except where otherwise noted, Shanks & Pottenger is the source for
  48 # entries through 1990, and IATA SSIM is the source for entries afterwards.
  49 #
  50 # Earlier editions of these tables used the North American style (e.g. ARST and
  51 # ARDT for Argentine Standard and Daylight Time), but the following quote
  52 # suggests that it's better to use European style (e.g. ART and ARST).
  53 #       I suggest the use of _Summer time_ instead of the more cumbersome
  54 #       _daylight-saving time_.  _Summer time_ seems to be in general use
  55 #       in Europe and South America.
  56 #       -- E O Cutler, _New York Times_ (1937-02-14), quoted in
  57 #       H L Mencken, _The American Language: Supplement I_ (1960), p 466
  58 #
  59 # Earlier editions of these tables also used the North American style
  60 # for time zones in Brazil, but this was incorrect, as Brazilians say


 391 # America/Cordoba split into 6 subregions during 1991/1992, one of which
 392 # was America/San_Luis, but we haven't verified this yet so for now we'll
 393 # keep America/Cordoba a single region rather than splitting it into the
 394 # other 5 subregions.
 395 
 396 # From Mariano Absatz (2009-03-13):
 397 # Yesterday (with our usual 2-day notice) the Province of San Luis
 398 # decided that next Sunday instead of "staying" @utc-03:00 they will go
 399 # to utc-04:00 until the second Saturday in October...
 400 #
 401 # The press release is at
 402 # <a href="http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102">
 403 # http://www.sanluis.gov.ar/SL/Paginas/NoticiaDetalle.asp?TemaId=1&InfoPrensaId=3102
 404 # </a>
 405 # (I couldn't find the decree, but
 406 # <a href="http://www.sanluis.gov.ar">
 407 # www.sanluis.gov.ar
 408 # <a/>
 409 # is the official page for the Province Government).
 410 #
 411 # There's also a note in only one of the major national papers ...

 412 # http://www.lanacion.com.ar/nota.asp?nota_id=1107912

 413 #
 414 # The press release says [quick and dirty translation]:
 415 # ... announced that next Sunday, at 00:00, Puntanos (the San Luis








 416 # inhabitants) will have to turn back one hour their clocks
 417 #
 418 # Since then, San Luis will establish its own Province timezone. Thus,
 419 # during 2009, this timezone change will run from 00:00 the third Sunday
 420 # in March until 24:00 of the second Saturday in October.
 421 
 422 # From Mariano Absatz (2009-10-16):
 423 # ...the Province of San Luis is a case in itself.
 424 #
 425 # The Law at
 426 # <a href="http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276>"
 427 # http://www.diputadossanluis.gov.ar/diputadosasp/paginas/verNorma.asp?NormaID=276
 428 # </a>
 429 # is ambiguous because establishes a calendar from the 2nd Sunday in
 430 # October at 0:00 thru the 2nd Saturday in March at 24:00 and the
 431 # complement of that starting on the 2nd Sunday of March at 0:00 and
 432 # ending on the 2nd Saturday of March at 24:00.
 433 #
 434 # This clearly breaks every time the 1st of March or October is a Sunday.
 435 #


 457 # According to news reports from El Diario de la Republica Province San
 458 # Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time
 459 # after April 11, 2010--will continue to have same time as rest of
 460 # Argentina (UTC-3) (no DST).
 461 #
 462 # Confirmaron la pr&oacute;rroga del huso horario de verano (Spanish)
 463 # <a href="http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9">
 464 # http://www.eldiariodelarepublica.com/index.php?option=com_content&task=view&id=29383&Itemid=9
 465 # </a>
 466 # or (some English translation):
 467 # <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina08.html">
 468 # http://www.worldtimezone.com/dst_news/dst_news_argentina08.html
 469 # </a>
 470 
 471 # From Mariano Absatz (2010-04-12):
 472 # yes...I can confirm this...and given that San Luis keeps calling
 473 # UTC-03:00 "summer time", we should't just let San Luis go back to "Arg"
 474 # rules...San Luis is still using "Western ARgentina Time" and it got
 475 # stuck on Summer daylight savings time even though the summer is over.
 476 
 477 # From Paul Eggert (2013-02-21):
 478 # Milne says Cordoba time was -4:16:48.2.  Round to the nearest second.
 479 
 480 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 481 #
 482 # Buenos Aires (BA), Capital Federal (CF),
 483 Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31
 484                         -4:16:48 -      CMT     1920 May # Cordoba Mean Time
 485                         -4:00   -       ART     1930 Dec
 486                         -4:00   Arg     AR%sT   1969 Oct  5
 487                         -3:00   Arg     AR%sT   1999 Oct  3
 488                         -4:00   Arg     AR%sT   2000 Mar  3
 489                         -3:00   Arg     AR%sT
 490 #
 491 # Cordoba (CB), Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN),
 492 # Chaco (CC), Formosa (FM), Santiago del Estero (SE)
 493 #
 494 # Shanks & Pottenger also make the following claims, which we haven't verified:
 495 # - Formosa switched to -3:00 on 1991-01-07.
 496 # - Misiones switched to -3:00 on 1990-12-29.
 497 # - Chaco switched to -3:00 on 1991-01-04.
 498 # - Santiago del Estero switched to -4:00 on 1991-04-01,
 499 #   then to -3:00 on 1991-04-26.


 815 # We have a written a short article about it as well:
 816 # <a href="http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html">
 817 # http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html
 818 # </a>
 819 #
 820 # From Alexander Krivenyshev (2011-10-04):
 821 # State Bahia will return to Daylight savings time this year after 8 years off.
 822 # The announcement was made by Governor Jaques Wagner in an interview to a
 823 # television station in Salvador.
 824 
 825 # In Portuguese:
 826 # <a href="http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html">
 827 # http://g1.globo.com/bahia/noticia/2011/10/governador-jaques-wagner-confirma-horario-de-verao-na-bahia.html
 828 # </a> and
 829 # <a href="http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html">
 830 # http://noticias.terra.com.br/brasil/noticias/0,,OI5390887-EI8139,00-Bahia+volta+a+ter+horario+de+verao+apos+oito+anos.html
 831 # </a>
 832 
 833 # From Guilherme Bernardes Rodrigues (2011-10-07):
 834 # There is news in the media, however there is still no decree about it.
 835 # I just send a e-mail to Zulmira Brandao at
 836 # <a href="http://pcdsh01.on.br/">http://pcdsh01.on.br/</a> the
 837 # official agency about time in Brazil, and she confirmed that the old rule is
 838 # still in force.
 839 
 840 # From Guilherme Bernardes Rodrigues (2011-10-14)
 841 # It's official, the President signed a decree that includes Bahia in summer
 842 # time.
 843 #        [ and in a second message (same day): ]
 844 # I found the decree.
 845 #
 846 # DECRETO No- 7.584, DE 13 DE OUTUBRO DE 2011
 847 # Link :
 848 # <a href="http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6">
 849 # http://www.in.gov.br/visualiza/index.jsp?data=13/10/2011&jornal=1000&pagina=6&totalArquivos=6
 850 # </a>
 851 
 852 # From Kelley Cook (2012-10-16):
 853 # The governor of state of Bahia in Brazil announced on Thursday that
 854 # due to public pressure, he is reversing the DST policy they implemented
 855 # last year and will not be going to Summer Time on October 21st....
 856 # http://www.correio24horas.com.br/r/artigo/apos-pressoes-wagner-suspende-horario-de-verao-na-bahia
 857 


1246 # Chile's clocks will go back an hour this year on the 7th of May instead
1247 # of this Saturday. They will go forward again the 3rd Saturday in
1248 # August, not in October as they have since 1968. This is a pilot plan
1249 # which will be reevaluated in 2012.
1250 
1251 # From Mauricio Parada (2012-02-22), translated by Glenn Eychaner (2012-02-23):
1252 # As stated in the website of the Chilean Energy Ministry
1253 # http://www.minenergia.cl/ministerio/noticias/generales/gobierno-anuncia-fechas-de-cambio-de.html
1254 # The Chilean Government has decided to postpone the entrance into winter time
1255 # (to leave DST) from March 11 2012 to April 28th 2012. The decision has not
1256 # been yet formalized but it will within the next days.
1257 # Quote from the website communication:
1258 #
1259 # 6. For the year 2012, the dates of entry into winter time will be as follows:
1260 # a. Saturday April 28, 2012, clocks should go back 60 minutes; that is, at
1261 # 23:59:59, instead of passing to 0:00, the time should be adjusted to be 23:00
1262 # of the same day.
1263 # b. Saturday, September 1, 2012, clocks should go forward 60 minutes; that is,
1264 # at 23:59:59, instead of passing to 0:00, the time should be adjusted to be
1265 # 01:00 on September 2.
1266 
1267 # From Steffen Thorsen (2013-02-15):
1268 # According to several news sources, Chile has extended DST this year,
1269 # they will end DST later and start DST earlier than planned.  They
1270 # hope to save energy.  The new end date is 2013-04-28 00:00 and new
1271 # start date is 2013-09-08 00:00....
1272 # http://www.gob.cl/informa/2013/02/15/gobierno-anuncia-fechas-de-cambio-de-hora-para-el-ano-2013.htm
1273 
1274 # NOTE: ChileAQ rules for Antarctic bases are stored separately in the
1275 # 'antarctica' file.
1276 
1277 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1278 Rule    Chile   1927    1932    -       Sep      1      0:00    1:00    S
1279 Rule    Chile   1928    1932    -       Apr      1      0:00    0       -
1280 Rule    Chile   1942    only    -       Jun      1      4:00u   0       -
1281 Rule    Chile   1942    only    -       Aug      1      5:00u   1:00    S
1282 Rule    Chile   1946    only    -       Jul     15      4:00u   1:00    S
1283 Rule    Chile   1946    only    -       Sep      1      3:00u   0:00    -
1284 Rule    Chile   1947    only    -       Apr      1      4:00u   0       -
1285 Rule    Chile   1968    only    -       Nov      3      4:00u   1:00    S
1286 Rule    Chile   1969    only    -       Mar     30      3:00u   0       -
1287 Rule    Chile   1969    only    -       Nov     23      4:00u   1:00    S
1288 Rule    Chile   1970    only    -       Mar     29      3:00u   0       -
1289 Rule    Chile   1971    only    -       Mar     14      3:00u   0       -
1290 Rule    Chile   1970    1972    -       Oct     Sun>=9       4:00u   1:00    S
1291 Rule    Chile   1972    1986    -       Mar     Sun>=9       3:00u   0       -
1292 Rule    Chile   1973    only    -       Sep     30      4:00u   1:00    S


1295 Rule    Chile   1988    1989    -       Mar     Sun>=9       3:00u   0       -
1296 Rule    Chile   1988    only    -       Oct     Sun>=1       4:00u   1:00    S
1297 Rule    Chile   1989    only    -       Oct     Sun>=9       4:00u   1:00    S
1298 Rule    Chile   1990    only    -       Mar     18      3:00u   0       -
1299 Rule    Chile   1990    only    -       Sep     16      4:00u   1:00    S
1300 Rule    Chile   1991    1996    -       Mar     Sun>=9       3:00u   0       -
1301 Rule    Chile   1991    1997    -       Oct     Sun>=9       4:00u   1:00    S
1302 Rule    Chile   1997    only    -       Mar     30      3:00u   0       -
1303 Rule    Chile   1998    only    -       Mar     Sun>=9       3:00u   0       -
1304 Rule    Chile   1998    only    -       Sep     27      4:00u   1:00    S
1305 Rule    Chile   1999    only    -       Apr      4      3:00u   0       -
1306 Rule    Chile   1999    2010    -       Oct     Sun>=9       4:00u   1:00    S
1307 Rule    Chile   2000    2007    -       Mar     Sun>=9       3:00u   0       -
1308 # N.B.: the end of March 29 in Chile is March 30 in Universal time,
1309 # which is used below in specifying the transition.
1310 Rule    Chile   2008    only    -       Mar     30      3:00u   0       -
1311 Rule    Chile   2009    only    -       Mar     Sun>=9       3:00u   0       -
1312 Rule    Chile   2010    only    -       Apr     Sun>=1       3:00u   0       -
1313 Rule    Chile   2011    only    -       May     Sun>=2       3:00u   0       -
1314 Rule    Chile   2011    only    -       Aug     Sun>=16      4:00u   1:00    S
1315 Rule    Chile   2012    max     -       Apr     Sun>=23      3:00u   0       -
1316 Rule    Chile   2012    max     -       Sep     Sun>=2       4:00u   1:00    S


1317 # IATA SSIM anomalies: (1992-02) says 1992-03-14;
1318 # (1996-09) says 1998-03-08.  Ignore these.
1319 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1320 Zone America/Santiago   -4:42:46 -      LMT     1890
1321                         -4:42:46 -      SMT     1910        # Santiago Mean Time
1322                         -5:00   -       CLT     1916 Jul  1 # Chile Time
1323                         -4:42:46 -      SMT     1918 Sep  1 # Santiago Mean Time
1324                         -4:00   -       CLT     1919 Jul  1 # Chile Time
1325                         -4:42:46 -      SMT     1927 Sep  1 # Santiago Mean Time
1326                         -5:00   Chile   CL%sT   1947 May 22 # Chile Time
1327                         -4:00   Chile   CL%sT
1328 Zone Pacific/Easter     -7:17:44 -      LMT     1890
1329                         -7:17:28 -      EMT     1932 Sep    # Easter Mean Time
1330                         -7:00   Chile   EAS%sT  1982 Mar 13 21:00 # Easter I Time
1331                         -6:00   Chile   EAS%sT
1332 #
1333 # Sala y Gomez Island is like Pacific/Easter.
1334 # Other Chilean locations, including Juan Fernandez Is, San Ambrosio,
1335 # San Felix, and Antarctic bases, are like America/Santiago.
1336 
1337 # Colombia
1338 
1339 # Milne gives 4:56:16.4 for Bogota time in 1899; round to nearest.  He writes,
1340 # "A variation of fifteen minutes in the public clocks of Bogota is not rare."
1341 
1342 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1343 Rule    CO      1992    only    -       May      3      0:00    1:00    S
1344 Rule    CO      1993    only    -       Apr      4      0:00    0       -
1345 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1346 Zone    America/Bogota  -4:56:16 -      LMT     1884 Mar 13
1347                         -4:56:16 -      BMT     1914 Nov 23 # Bogota Mean Time
1348                         -5:00   CO      CO%sT   # Colombia Time
1349 # Malpelo, Providencia, San Andres
1350 # no information; probably like America/Bogota
1351 
1352 # Curacao
1353 
1354 # Milne gives 4:35:46.9 for Curacao mean time; round to nearest.
1355 #
1356 # From Paul Eggert (2006-03-22):
1357 # Shanks & Pottenger say that The Bottom and Philipsburg have been at
1358 # -4:00 since standard time was introduced on 1912-03-02; and that
1359 # Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from
1360 # 1912-02-02 to 1965-01-01.  The former is dubious, since S&P also say
1361 # Saba Island has been like Curacao.
1362 # This all predates our 1970 cutoff, though.
1363 #
1364 # By July 2007 Curacao and St Maarten are planned to become
1365 # associated states within the Netherlands, much like Aruba;
1366 # Bonaire, Saba and St Eustatius would become directly part of the
1367 # Netherlands as Kingdom Islands.  This won't affect their time zones
1368 # though, as far as we know.
1369 #
1370 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1371 Zone    America/Curacao -4:35:47 -      LMT     1912 Feb 12     # Willemstad
1372                         -4:30   -       ANT     1965 # Netherlands Antilles Time
1373                         -4:00   -       AST
1374 
1375 # From Arthur David Olson (2011-06-15):
1376 # At least for now, use links for places with new iso3166 codes.
1377 # The name "Lower Prince's Quarter" is both longer than fourteen charaters
1378 # and contains an apostrophe; use "Lower_Princes" below.
1379 
1380 Link    America/Curacao America/Lower_Princes # Sint Maarten
1381 Link    America/Curacao America/Kralendijk # Bonaire, Sint Estatius and Saba
1382 
1383 # Ecuador
1384 #
1385 # Milne says the Sentral and South American Telegraph Company used -5:24:15.
1386 #
1387 # From Paul Eggert (2007-03-04):
1388 # Apparently Ecuador had a failed experiment with DST in 1992.
1389 # <http://midena.gov.ec/content/view/1261/208/> (2007-02-27) and
1390 # <http://www.hoy.com.ec/NoticiaNue.asp?row_id=249856> (2006-11-06) both
1391 # talk about "hora Sixto".  Leave this alone for now, as we have no data.
1392 #
1393 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1394 Zone America/Guayaquil  -5:19:20 -      LMT     1890
1395                         -5:14:00 -      QMT     1931 # Quito Mean Time
1396                         -5:00   -       ECT          # Ecuador Time
1397 Zone Pacific/Galapagos  -5:58:24 -      LMT     1931 # Puerto Baquerizo Moreno
1398                         -5:00   -       ECT     1986
1399                         -6:00   -       GALT         # Galapagos Time
1400 
1401 # Falklands
1402 
1403 # From Paul Eggert (2006-03-22):
1404 # Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except
1405 # the IATA gives 1996-09-08.  Go with Shanks & Pottenger.
1406 


1572 # Decree 1,867 (2004-03-05)
1573 # From Carlos Raul Perasso via Jesper Norgaard Welen (2006-10-13)
1574 # <http://www.presidencia.gov.py/decretos/D1867.pdf>
1575 Rule    Para    2004    2009    -       Oct     Sun>=15      0:00    1:00    S
1576 Rule    Para    2005    2009    -       Mar     Sun>=8       0:00    0       -
1577 # From Carlos Raul Perasso (2010-02-18):
1578 # By decree number 3958 issued yesterday (
1579 # <a href="http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf">
1580 # http://www.presidencia.gov.py/v1/wp-content/uploads/2010/02/decreto3958.pdf
1581 # </a>
1582 # )
1583 # Paraguay changes its DST schedule, postponing the March rule to April and
1584 # modifying the October date. The decree reads:
1585 # ...
1586 # Art. 1. It is hereby established that from the second Sunday of the month of
1587 # April of this year (2010), the official time is to be set back 60 minutes,
1588 # and that on the first Sunday of the month of October, it is to be set
1589 # forward 60 minutes, in all the territory of the Paraguayan Republic.
1590 # ...
1591 Rule    Para    2010    max     -       Oct     Sun>=1       0:00    1:00    S
1592 Rule    Para    2010    2012    -       Apr     Sun>=8       0:00    0       -
1593 #
1594 # From Steffen Thorsen (2013-03-07):
1595 # Paraguay will end DST on 2013-03-24 00:00....
1596 # http://www.ande.gov.py/interna.php?id=1075
1597 #
1598 # From Carlos Raul Perasso (2013-03-15):
1599 # The change in Paraguay is now final.  Decree number 10780
1600 # http://www.presidencia.gov.py/uploads/pdf/presidencia-3b86ff4b691c79d4f5927ca964922ec74772ce857c02ca054a52a37b49afc7fb.pdf
1601 Rule    Para    2013    max     -       Mar     Sun>=22      0:00    0       -
1602 
1603 # Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
1604 Zone America/Asuncion   -3:50:40 -      LMT     1890
1605                         -3:50:40 -      AMT     1931 Oct 10 # Asuncion Mean Time
1606                         -4:00   -       PYT     1972 Oct # Paraguay Time
1607                         -3:00   -       PYT     1974 Apr
1608                         -4:00   Para    PY%sT
1609 
1610 # Peru
1611 #
1612 # <a href="news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net">
1613 # From Evelyn C. Leeper via Mark Brader (2003-10-26):</a>
1614 # When we were in Peru in 1985-1986, they apparently switched over
1615 # sometime between December 29 and January 3 while we were on the Amazon.
1616 #
1617 # From Paul Eggert (2006-03-22):
1618 # Shanks & Pottenger don't have this transition.  Assume 1986 was like 1987.
1619 
1620 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
1621 Rule    Peru    1938    only    -       Jan      1      0:00    1:00    S