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Southern Chile moves from -04/-03 to -03

(Thanks to Juan Correa.)
* NEWS, antarctica: Document this.
* southamerica (America/Santiago, Pacific/Easter, Antarctica/Palmer):
Switch to numeric abbreviations for integer zones.
* southamerica, zone.tab, zone1970.tab (America/Punta_Arenas): New zone.
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eggert committed Dec 5, 2016
1 parent c578aa2 commit 075ad7016e4519cab9728fd248e79ce50637ddd6
Showing with 52 additions and 16 deletions.
  1. +15 −0 NEWS
  2. +2 −1 antarctica
  3. +33 −15 southamerica
  4. +1 −0 zone.tab
  5. +1 −0 zone1970.tab
15 NEWS
@@ -2,6 +2,21 @@ News for the tz database

Unreleased, experimental changes

Briefly: Southern Chile moves from -04/-03 to -03.

Changes to future time stamps

Chile's Region of Magallanes moves from -04/-03 to -03 year-round.
Its clocks diverge from America/Santiago starting 2017-05-13 at
23:00, hiving off a new zone America/Punta_Arenas. (Thanks to
Juan Correa.) This also affects Antarctica/Palmer.

Changes to current and future time zone abbreviations

Switch to numeric time zones for Chile, so as to not invent an
abbreviation for its new zone. This affects America/Santiago,
Pacific/Easter, and Antarctica/Palmer.

Changes to documentation and commentary

tz-link.htm now covers leap smearing, which is popular in clouds.
@@ -110,7 +110,8 @@ Zone Antarctica/Mawson 0 - -00 1954 Feb 13
# O'Higgins, Antarctic Peninsula, -6319-05704, since 1948-02
# Prat, -6230-05941
# Villa Las Estrellas (a town), around the Frei base, since 1984-04-09
# These locations have always used Santiago time; use TZ='America/Santiago'.
# These locations employ Region of Magallanes time; use
# TZ='America/Punta_Arenas'.

# China - year-round bases
# Great Wall, King George Island, -6213-05858, since 1985-02-20
@@ -1235,6 +1235,10 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914
# to mean 24:00 mainland time, not 24:00 local time, so that Easter
# Island is always two hours behind the mainland.

# From Juan Correa (2016-12-04):
# Magallanes region ... will keep DST (UTC -3) all year round....
# http://www.soychile.cl/Santiago/Sociedad/2016/12/04/433428/Bachelet-firmo-el-decreto-para-establecer-un-horario-unico-para-la-Region-de-Magallanes.aspx

# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Chile 1927 1931 - Sep 1 0:00 1:00 S
Rule Chile 1928 1932 - Apr 1 0:00 0 -
@@ -1275,22 +1279,35 @@ Rule Chile 2016 max - Aug Sun>=9 4:00u 1:00 S
# 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 - CLT 1916 Jul 1 # Chile Time
-5:00 - -05 1916 Jul 1
-4:42:46 - SMT 1918 Sep 10
-4:00 - -04 1919 Jul 1
-4:42:46 - SMT 1927 Sep 1
-5:00 Chile -05/-04 1932 Sep 1
-4:00 - -04 1942 Jun 1
-5:00 - -05 1942 Aug 1
-4:00 - -04 1946 Jul 15
-4:00 1:00 -03 1946 Sep 1 # central Chile
-4:00 - -04 1947 Apr 1
-5:00 - -05 1947 May 21 23:00
-4:00 Chile -04/-03
Zone America/Punta_Arenas -4:43:40 - LMT 1890
-4:42:46 - SMT 1910 Jan 10
-5:00 - -05 1916 Jul 1
-4:42:46 - SMT 1918 Sep 10
-4:00 - CLT 1919 Jul 1
-4:00 - -04 1919 Jul 1
-4:42:46 - SMT 1927 Sep 1
-5:00 Chile CL%sT 1932 Sep 1
-4:00 - CLT 1942 Jun 1
-5:00 - CLT 1942 Aug 1
-4:00 - CLT 1946 Jul 15
-4:00 1:00 CLST 1946 Sep 1 # central Chile
-4:00 - CLT 1947 Apr 1
-5:00 - CLT 1947 May 21 23:00
-4:00 Chile CL%sT
-5:00 Chile -05/-04 1932 Sep 1
-4:00 - -04 1942 Jun 1
-5:00 - -05 1942 Aug 1
-4:00 - -04 1947 Apr 1
-5:00 - -05 1947 May 21 23:00
-4:00 Chile -04/-03 2016 Dec 4
-3:00 - -03
Zone Pacific/Easter -7:17:28 - LMT 1890
-7:17:28 - EMT 1932 Sep # Easter Mean Time
-7:00 Chile EAS%sT 1982 Mar 14 3:00u # Easter Time
-6:00 Chile EAS%sT
-7:00 Chile -07/-06 1982 Mar 14 3:00u # Easter Time
-6:00 Chile -06/-05
#
# Salas y Gómez Island is uninhabited.
# Other Chilean locations, including Juan Fernández Is, Desventuradas Is,
@@ -1310,9 +1327,10 @@ Zone Pacific/Easter -7:17:28 - LMT 1890
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Antarctica/Palmer 0 - -00 1965
-4:00 Arg AR%sT 1969 Oct 5
-3:00 Arg AR%sT 1982 May
-4:00 Chile CL%sT
-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

# Colombia

@@ -142,6 +142,7 @@ CH +4723+00832 Europe/Zurich
CI +0519-00402 Africa/Abidjan
CK -2114-15946 Pacific/Rarotonga
CL -3327-07040 America/Santiago Chile (most areas)
CL -5309-07055 America/Punta_Arenas Region of Magallanes
CL -2709-10926 Pacific/Easter Easter Island
CM +0403+00942 Africa/Douala
CN +3114+12128 Asia/Shanghai Beijing Time
@@ -135,6 +135,7 @@ CH,DE,LI +4723+00832 Europe/Zurich Swiss time
CI,BF,GM,GN,ML,MR,SH,SL,SN,ST,TG +0519-00402 Africa/Abidjan
CK -2114-15946 Pacific/Rarotonga
CL -3327-07040 America/Santiago Chile (most areas)
CL -5309-07055 America/Punta_Arenas Region of Magallanes
CL -2709-10926 Pacific/Easter Easter Island
CN +3114+12128 Asia/Shanghai Beijing Time
CN +4348+08735 Asia/Urumqi Xinjiang Time

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