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make/data/tzdata/southamerica

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@@ -417,11 +417,11 @@
 # standard time, so let's do that here too.  This does not change UTC
 # offsets, only tm_isdst and the time zone abbreviations.  One minor
 # plus is that this silences a zic complaint that there's no POSIX TZ
 # setting for timestamps past 2038.
 
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 #
 # Buenos Aires (BA), Capital Federal (CF),
 Zone America/Argentina/Buenos_Aires -3:53:48 - LMT      1894 Oct 31
                         -4:16:48 -      CMT     1920 May    # Córdoba Mean Time
                         -4:00   -       -04     1930 Dec

@@ -598,11 +598,11 @@
 
 # Aruba
 Link America/Curacao America/Aruba
 
 # Bolivia
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone    America/La_Paz  -4:32:36 -      LMT     1890
                         -4:32:36 -      CMT     1931 Oct 15 # Calamarca MT
                         -4:32:36 1:00   BST     1932 Mar 21 # Bolivia ST
                         -4:00   -       -04
 

@@ -941,39 +941,41 @@
 # removed Bahia and added Tocantins.
 # Decree 8,112 <http://pcdsh01.on.br/HVdecreto8112_20130930.JPG> (2013-09-30)
 # removed Tocantins.
 Rule    Brazil  2013    2014    -       Feb     Sun>=15 0:00    0       -
 Rule    Brazil  2015    only    -       Feb     Sun>=22 0:00    0       -
-Rule    Brazil  2016    2019    -       Feb     Sun>=15 0:00    0       -
+Rule    Brazil  2016    2022    -       Feb     Sun>=15 0:00    0       -
 # From Steffen Thorsen (2017-12-18):
 # According to many media sources, next year's DST start in Brazil will move to
-# the first Sunday of November
+# the first Sunday of November, and it will stay like that for the years after.
 # ... https://www.timeanddate.com/news/time/brazil-delays-dst-2018.html
 # From Steffen Thorsen (2017-12-20):
 # http://www.planalto.gov.br/ccivil_03/_ato2015-2018/2017/decreto/D9242.htm
+#
 # From Fábio Gomes (2018-10-04):
 # The Brazilian president just announced a new change on this year DST.
 # It was scheduled to start on November 4th and it was changed to November 18th.
 # From Rodrigo Brüning Wessler (2018-10-15):
 # The Brazilian government just announced that the change in DST was
 # canceled....  Maybe the president Michel Temer also woke up one hour
 # earlier today. :)
-Rule    Brazil  2018    only    -       Nov     Sun>=1  0:00    1:00    -
-# The last ruleset listed above says that the following states observed DST:
+Rule    Brazil  2018    max     -       Nov     Sun>=1  0:00    1:00    -
+Rule    Brazil  2023    only    -       Feb     Sun>=22 0:00    0       -
+Rule    Brazil  2024    2025    -       Feb     Sun>=15 0:00    0       -
+Rule    Brazil  2026    only    -       Feb     Sun>=22 0:00    0       -
+Rule    Brazil  2027    2033    -       Feb     Sun>=15 0:00    0       -
+Rule    Brazil  2034    only    -       Feb     Sun>=22 0:00    0       -
+Rule    Brazil  2035    2036    -       Feb     Sun>=15 0:00    0       -
+Rule    Brazil  2037    only    -       Feb     Sun>=22 0:00    0       -
+# From Arthur David Olson (2008-09-29):
+# The next is wrong in some years but is better than nothing.
+Rule    Brazil  2038    max     -       Feb     Sun>=15 0:00    0       -
+
+# The latest ruleset listed above says that the following states observe DST:
 # DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP.
-#
-# From Steffen Thorsen (2019-04-05):
-# According to multiple sources the Brazilian president wants to get rid of DST.
-# https://gmconline.com.br/noticias/politica/bolsonaro-horario-de-verao-deve-acabar-este-ano
-# https://g1.globo.com/economia/noticia/2019/04/05/governo-anuncia-fim-do-horario-de-verao.ghtml
-# From Marcus Diniz (2019-04-25):
-# Brazil no longer has DST changes - decree signed today
-# https://g1.globo.com/politica/noticia/2019/04/25/bolsonaro-assina-decreto-que-acaba-com-o-horario-de-verao.ghtml
-# From Daniel Soares de Oliveira (2019-04-26):
-# http://www.planalto.gov.br/ccivil_03/_Ato2019-2022/2019/Decreto/D9772.htm
 
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 #
 # Fernando de Noronha (administratively part of PE)
 Zone America/Noronha    -2:09:40 -      LMT     1914
                         -2:00   Brazil  -02/-01 1990 Sep 17
                         -2:00   -       -02     1999 Sep 30

@@ -1277,12 +1279,10 @@
 # decided by the citizens during 2017, but our Government will promote a
 # regional dialogue table to gather their opinion on this matter."
 # https://twitter.com/MinEnergia/status/1029009354001973248
 # "We will keep the new time policy unchanged for at least the next 4 years."
 # So we extend the new rules on Saturdays at 24:00 mainland time indefinitely.
-# From Juan Correa (2019-02-04):
-# http://www.diariooficial.interior.gob.cl/publicaciones/2018/11/23/42212/01/1498738.pdf
 
 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 Rule    Chile   1927    1931    -       Sep      1      0:00    1:00    -
 Rule    Chile   1928    1932    -       Apr      1      0:00    0       -
 Rule    Chile   1968    only    -       Nov      3      4:00u   1:00    -

@@ -1319,11 +1319,11 @@
 Rule    Chile   2016    2018    -       Aug     Sun>=9  4:00u   1:00    -
 Rule    Chile   2019    max     -       Apr     Sun>=2  3:00u   0       -
 Rule    Chile   2019    max     -       Sep     Sun>=2  4:00u   1:00    -
 # IATA SSIM anomalies: (1992-02) says 1992-03-14;
 # (1996-09) says 1998-03-08.  Ignore these.
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone America/Santiago   -4:42:46 -      LMT     1890
                         -4:42:46 -      SMT     1910 Jan 10 # Santiago Mean Time
                         -5:00   -       -05     1916 Jul  1
                         -4:42:46 -      SMT     1918 Sep 10
                         -4:00   -       -04     1919 Jul  1

@@ -1368,11 +1368,11 @@
 # and the South Pole, that's the other end of their supply line....
 # I verified with someone who was there that since 1980,
 # Palmer has followed Chile.  Prior to that, before the Falklands War,
 # Palmer used to be supplied from Argentina.
 #
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone Antarctica/Palmer  0       -       -00     1965
                         -4:00   Arg     -04/-03 1969 Oct  5
                         -3:00   Arg     -03/-02 1982 May
                         -4:00   Chile   -04/-03 2016 Dec  4
                         -3:00   -       -03

@@ -1383,11 +1383,11 @@
 # "A variation of fifteen minutes in the public clocks of Bogota is not rare."
 
 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 Rule    CO      1992    only    -       May      3      0:00    1:00    -
 Rule    CO      1993    only    -       Apr      4      0:00    0       -
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone    America/Bogota  -4:56:16 -      LMT     1884 Mar 13
                         -4:56:16 -      BMT     1914 Nov 23 # Bogotá Mean Time
                         -5:00   CO      -05/-04
 # Malpelo, Providencia, San Andres
 # no information; probably like America/Bogota

@@ -1408,11 +1408,11 @@
 # associated states within the Netherlands, much like Aruba;
 # Bonaire, Saba and St Eustatius would become directly part of the
 # Netherlands as Kingdom Islands.  This won't affect their time zones
 # though, as far as we know.
 #
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone    America/Curacao -4:35:47 -      LMT     1912 Feb 12 # Willemstad
                         -4:30   -       -0430   1965
                         -4:00   -       AST
 
 # From Arthur David Olson (2011-06-15):

@@ -1444,11 +1444,11 @@
 #
 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 Rule    Ecuador 1992    only    -       Nov     28      0:00    1:00    -
 Rule    Ecuador 1993    only    -       Feb      5      0:00    0       -
 #
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone America/Guayaquil  -5:19:20 -      LMT     1890
                         -5:14:00 -      QMT     1931 # Quito Mean Time
                         -5:00   Ecuador -05/-04
 Zone Pacific/Galapagos  -5:58:24 -      LMT     1931 # Puerto Baquerizo Moreno
                         -5:00   -       -05     1986

@@ -1547,26 +1547,26 @@
 Rule    Falk    1984    only    -       Sep     16      0:00    1:00    -
 Rule    Falk    1985    2000    -       Sep     Sun>=9  0:00    1:00    -
 Rule    Falk    1986    2000    -       Apr     Sun>=16 0:00    0       -
 Rule    Falk    2001    2010    -       Apr     Sun>=15 2:00    0       -
 Rule    Falk    2001    2010    -       Sep     Sun>=1  2:00    1:00    -
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone Atlantic/Stanley   -3:51:24 -      LMT     1890
                         -3:51:24 -      SMT     1912 Mar 12 # Stanley Mean Time
                         -4:00   Falk    -04/-03 1983 May
                         -3:00   Falk    -03/-02 1985 Sep 15
                         -4:00   Falk    -04/-03 2010 Sep  5  2:00
                         -3:00   -       -03
 
 # French Guiana
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone America/Cayenne    -3:29:20 -      LMT     1911 Jul
                         -4:00   -       -04     1967 Oct
                         -3:00   -       -03
 
 # Guyana
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone    America/Guyana  -3:52:40 -      LMT     1915 Mar    # Georgetown
                         -3:45   -       -0345   1975 Jul 31
                         -3:00   -       -03     1991
 # IATA SSIM (1996-06) says -4:00.  Assume a 1991 switch.
                         -4:00   -       -04

@@ -1656,11 +1656,11 @@
 # From Carlos Raúl Perasso (2014-02-28):
 # Decree 1264 can be found at:
 # http://www.presidencia.gov.py/archivos/documentos/DECRETO1264_ey9r8zai.pdf
 Rule    Para    2013    max     -       Mar     Sun>=22 0:00    0       -
 
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone America/Asuncion   -3:50:40 -      LMT     1890
                         -3:50:40 -      AMT     1931 Oct 10 # Asunción Mean Time
                         -4:00   -       -04     1972 Oct
                         -3:00   -       -03     1974 Apr
                         -4:00   Para    -04/-03

@@ -1685,33 +1685,33 @@
 Rule    Peru    1990    only    -       Jan      1      0:00    1:00    -
 Rule    Peru    1990    only    -       Apr      1      0:00    0       -
 # IATA is ambiguous for 1993/1995; go with Shanks & Pottenger.
 Rule    Peru    1994    only    -       Jan      1      0:00    1:00    -
 Rule    Peru    1994    only    -       Apr      1      0:00    0       -
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone    America/Lima    -5:08:12 -      LMT     1890
                         -5:08:36 -      LMT     1908 Jul 28 # Lima Mean Time?
                         -5:00   Peru    -05/-04
 
 # South Georgia
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone Atlantic/South_Georgia -2:26:08 -  LMT     1890 # Grytviken
                         -2:00   -       -02
 
 # South Sandwich Is
 # uninhabited; scientific personnel have wintered
 
 # Suriname
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone America/Paramaribo -3:40:40 -      LMT     1911
                         -3:40:52 -      PMT     1935     # Paramaribo Mean Time
                         -3:40:36 -      PMT     1945 Oct    # The capital moved?
                         -3:30   -       -0330   1984 Oct
                         -3:00   -       -03
 
 # Trinidad and Tobago
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone America/Port_of_Spain -4:06:04 -   LMT     1912 Mar 2
                         -4:00   -       AST
 
 # These all agree with Trinidad and Tobago since 1970.
 Link America/Port_of_Spain America/Anguilla

@@ -1978,11 +1978,11 @@
 #
 # From Matt Johnson (2016-04-20):
 # ... published in the official Gazette [2016-04-18], here:
 # http://historico.tsj.gob.ve/gaceta_ext/abril/1842016/E-1842016-4551.pdf
 
-# Zone  NAME            STDOFF  RULES   FORMAT  [UNTIL]
+# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
 Zone    America/Caracas -4:27:44 -      LMT     1890
                         -4:27:40 -      CMT     1912 Feb 12 # Caracas Mean Time?
                         -4:30   -       -0430   1965 Jan  1  0:00
                         -4:00   -       -04     2007 Dec  9  3:00
                         -4:30   -       -0430   2016 May  1  2:30
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