Update time zone data files to tzdata release 2015a.

DST law changes in Chile and Mexico (state of Quintana Roo).
Historical changes for Iceland.

Author: tglsfdc

src/timezone/data/antarctica

@@ -47,8 +47,8 @@ Rule	ChileAQ	2009	only	-	Mar	Sun>=9	3:00u	0	-
 Rule	ChileAQ	2010	only	-	Apr	Sun>=1	3:00u	0	-
 Rule	ChileAQ	2011	only	-	May	Sun>=2	3:00u	0	-
 Rule	ChileAQ	2011	only	-	Aug	Sun>=16	4:00u	1:00	S
-Rule	ChileAQ	2012	max	-	Apr	Sun>=23	3:00u	0	-
-Rule	ChileAQ	2012	max	-	Sep	Sun>=2	4:00u	1:00	S
+Rule	ChileAQ	2012	2015	-	Apr	Sun>=23	3:00u	0	-
+Rule	ChileAQ	2012	2014	-	Sep	Sun>=2	4:00u	1:00	S
 
 # Argentina - year-round bases
 # Belgrano II, Confin Coast, -770227-0343737, since 1972-02-05
@@ -354,9 +354,10 @@ Zone Antarctica/Rothera	0	-	zzz	1976 Dec  1
 #
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Antarctica/Palmer	0	-	zzz	1965
-			-4:00	ArgAQ	AR%sT	1969 Oct 5
+			-4:00	ArgAQ	AR%sT	1969 Oct  5
 			-3:00	ArgAQ	AR%sT	1982 May
-			-4:00	ChileAQ	CL%sT
+			-4:00	ChileAQ	CL%sT	2015 Apr 26 3:00u
+			-3:00	-	CLT
 #
 #
 # McMurdo Station, Ross Island, since 1955-12

src/timezone/data/asia

@@ -145,10 +145,7 @@ Zone	Asia/Baku	3:19:24 -	LMT	1924 May  2
 			4:00	Azer	AZ%sT
 
 # Bahrain
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Asia/Bahrain	3:22:20 -	LMT	1920     # Manamah
-			4:00	-	GST	1972 Jun
-			3:00	-	AST
+# See Asia/Qatar.
 
 # Bangladesh
 # From Alexander Krivenyshev (2009-05-13):
@@ -1731,9 +1728,7 @@ Zone	Asia/Pyongyang	8:23:00 -	LMT	1908 Apr  1
 ###############################################################################
 
 # Kuwait
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Asia/Kuwait	3:11:56 -	LMT	1950
-			3:00	-	AST
+# See Asia/Riyadh.
 
 # Laos
 # See Asia/Bangkok.
@@ -1954,12 +1949,7 @@ Zone	Asia/Kathmandu	5:41:16 -	LMT	1920
 			5:45	-	NPT	# Nepal Time
 
 # Oman
-
-# Milne says 3:54:24 was the meridian of the Muscat Tidal Observatory.
-
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Asia/Muscat	3:54:24 -	LMT	1920
-			4:00	-	GST
+# See Asia/Dubai.
 
 # Pakistan
 
@@ -2453,6 +2443,7 @@ Zone	Asia/Manila	-15:56:00 -	LMT	1844 Dec 31
 Zone	Asia/Qatar	3:26:08 -	LMT	1920     # Al Dawhah / Doha
 			4:00	-	GST	1972 Jun
 			3:00	-	AST
+Link Asia/Qatar Asia/Bahrain
 
 # Saudi Arabia
 #
@@ -2479,6 +2470,8 @@ Zone	Asia/Qatar	3:26:08 -	LMT	1920     # Al Dawhah / Doha
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Riyadh	3:06:52 -	LMT	1947 Mar 14
 			3:00	-	AST
+Link Asia/Riyadh Asia/Aden	# Yemen
+Link Asia/Riyadh Asia/Kuwait
 
 # Singapore
 # taken from Mok Ly Yng (2003-10-30)
@@ -2767,6 +2760,7 @@ Zone	Asia/Ashgabat	3:53:32 -	LMT	1924 May  2 # or Ashkhabad
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Dubai	3:41:12 -	LMT	1920
 			4:00	-	GST
+Link Asia/Dubai Asia/Muscat	# Oman
 
 # Uzbekistan
 # Byalokoz 1919 says Uzbekistan was 4:27:53.
@@ -2851,10 +2845,4 @@ Zone Asia/Ho_Chi_Minh	7:06:40 -	LMT	1906 Jul  1
 			7:00	-	ICT
 
 # Yemen
-
-# Milne says 2:59:54 was the meridian of the saluting battery at Aden,
-# and that Yemen was at 1:55:56, the meridian of the Hagia Sophia.
-
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Asia/Aden	2:59:54	-	LMT	1950
-			3:00	-	AST
+# See Asia/Riyadh.

src/timezone/data/backward

@@ -5,7 +5,7 @@
 # and their old names.  Many names changed in late 1993.
 
 # Link	TARGET			LINK-NAME
-Link	Africa/Asmara		Africa/Asmera
+Link	Africa/Nairobi		Africa/Asmera
 Link	Africa/Abidjan		Africa/Timbuktu
 Link	America/Argentina/Catamarca	America/Argentina/ComodRivadavia
 Link	America/Adak		America/Atka

src/timezone/data/backzone

@@ -60,6 +60,7 @@ Zone	Africa/Asmara	2:35:32 -	LMT	1870
 			2:35:32	-	AMT	1890        # Asmara Mean Time
 			2:35:20	-	ADMT	1936 May  5 # Adis Dera MT
 			3:00	-	EAT
+Link Africa/Asmara Africa/Asmera
 
 # Mali (southern)
 Zone	Africa/Bamako	-0:32:00 -	LMT	1912
@@ -348,6 +349,17 @@ Zone Antarctica/McMurdo	0	-	zzz	1956
 			12:00	NZ	NZ%sT
 Link Antarctica/McMurdo Antarctica/South_Pole
 
+# Yemen
+# Milne says 2:59:54 was the meridian of the saluting battery at Aden,
+# and that Yemen was at 1:55:56, the meridian of the Hagia Sophia.
+Zone	Asia/Aden	2:59:54	-	LMT	1950
+			3:00	-	AST
+
+# Bahrain
+Zone	Asia/Bahrain	3:22:20 -	LMT	1920     # Manamah
+			4:00	-	GST	1972 Jun
+			3:00	-	AST
+
 # India
 #
 # From Paul Eggert (2014-09-06):
@@ -403,6 +415,16 @@ Zone	Asia/Kashgar	5:03:56	-	LMT	1928     # or Kashi or Kaxgar
 			5:00	-	KAST	1980 May
 			8:00	PRC	C%sT
 
+# Kuwait
+Zone	Asia/Kuwait	3:11:56 -	LMT	1950
+			3:00	-	AST
+
+
+# Oman
+# Milne says 3:54:24 was the meridian of the Muscat Tidal Observatory.
+Zone	Asia/Muscat	3:54:24 -	LMT	1920
+			4:00	-	GST
+
 # India
 # From Paul Eggert (2014-08-11), after a heads-up from Stephen Colebourne:
 # According to a Portuguese decree (1911-05-26)
@@ -494,7 +516,7 @@ Zone	Europe/Guernsey	-0:09:19 -	LMT	1913 Jun 18
 #
 # AT4 of 1883 - The Statutory Time et cetera Act 1883 -
 # LMT Location - 54.1508N -4.4814E - Tynwald Hill ( Manx parliament )
-Zone    Europe/Isle_of_Man -0:17:55 -    LMT 1883 March 30  0:00s
+Zone Europe/Isle_of_Man	-0:17:55 -	LMT	1883 Mar 30  0:00s
 			 0:00	GB-Eire	%s	1968 Oct 27
 			 1:00	-	BST	1971 Oct 31  2:00u
 			 0:00	GB-Eire	%s	1996

src/timezone/data/europe

@@ -1407,35 +1407,32 @@ Zone	Europe/Budapest	1:16:20 -	LMT	1890 Oct
 # might be a reference to the Julian calendar as opposed to Gregorian, or it
 # might mean something else (???).
 #
-# From Paul Eggert (2006-03-22):
-# The Iceland Almanak, Shanks & Pottenger, and Whitman disagree on many points.
-# We go with the Almanak, except for one claim from Shanks & Pottenger, namely
-# that Reykavik was 21W57 from 1837 to 1908, local mean time before that.
+# From Paul Eggert (2014-11-22):
+# The information below is taken from the 1988 Almanak; see
+# http://www.almanak.hi.is/klukkan.html
 #
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	Iceland	1917	1918	-	Feb	19	23:00	1:00	S
+Rule	Iceland	1917	1919	-	Feb	19	23:00	1:00	S
 Rule	Iceland	1917	only	-	Oct	21	 1:00	0	-
-Rule	Iceland	1918	only	-	Nov	16	 1:00	0	-
+Rule	Iceland	1918	1919	-	Nov	16	 1:00	0	-
+Rule	Iceland	1921	only	-	Mar	19	23:00	1:00	S
+Rule	Iceland	1921	only	-	Jun	23	 1:00	0	-
 Rule	Iceland	1939	only	-	Apr	29	23:00	1:00	S
-Rule	Iceland	1939	only	-	Nov	29	 2:00	0	-
+Rule	Iceland	1939	only	-	Oct	29	 2:00	0	-
 Rule	Iceland	1940	only	-	Feb	25	 2:00	1:00	S
-Rule	Iceland	1940	only	-	Nov	 3	 2:00	0	-
-Rule	Iceland	1941	only	-	Mar	 2	 1:00s	1:00	S
-Rule	Iceland	1941	only	-	Nov	 2	 1:00s	0	-
-Rule	Iceland	1942	only	-	Mar	 8	 1:00s	1:00	S
-Rule	Iceland	1942	only	-	Oct	25	 1:00s	0	-
+Rule	Iceland	1940	1941	-	Nov	Sun>=2	 1:00s	0	-
+Rule	Iceland	1941	1942	-	Mar	Sun>=2	 1:00s	1:00	S
 # 1943-1946 - first Sunday in March until first Sunday in winter
 Rule	Iceland	1943	1946	-	Mar	Sun>=1	 1:00s	1:00	S
-Rule	Iceland	1943	1948	-	Oct	Sun>=22	 1:00s	0	-
+Rule	Iceland	1942	1948	-	Oct	Sun>=22	 1:00s	0	-
 # 1947-1967 - first Sunday in April until first Sunday in winter
 Rule	Iceland	1947	1967	-	Apr	Sun>=1	 1:00s	1:00	S
-# 1949 Oct transition delayed by 1 week
+# 1949 and 1967 Oct transitions delayed by 1 week
 Rule	Iceland	1949	only	-	Oct	30	 1:00s	0	-
 Rule	Iceland	1950	1966	-	Oct	Sun>=22	 1:00s	0	-
 Rule	Iceland	1967	only	-	Oct	29	 1:00s	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Atlantic/Reykjavik	-1:27:24 -	LMT	1837
-			-1:27:48 -	RMT	1908 # Reykjavik Mean Time?
+Zone Atlantic/Reykjavik	-1:28	-	LMT	1908
 			-1:00	Iceland	IS%sT	1968 Apr  7  1:00s
 			 0:00	-	GMT
 

src/timezone/data/leapseconds

@@ -54,3 +54,7 @@ Leap	1998	Dec	31	23:59:60	+	S
 Leap	2005	Dec	31	23:59:60	+	S
 Leap	2008	Dec	31	23:59:60	+	S
 Leap	2012	Jun	30	23:59:60	+	S
+Leap	2015	Jun	30	23:59:60	+	S
+
+#	Updated through IERS Bulletin C49
+#	File expires on:  28 December 2015

src/timezone/data/northamerica

@@ -124,7 +124,7 @@ Rule	US	1918	1919	-	Mar	lastSun	2:00	1:00	D
 Rule	US	1918	1919	-	Oct	lastSun	2:00	0	S
 Rule	US	1942	only	-	Feb	9	2:00	1:00	W # War
 Rule	US	1945	only	-	Aug	14	23:00u	1:00	P # Peace
-Rule	US	1945	only	-	Sep	30	2:00	0	S
+Rule	US	1945	only	-	Sep	lastSun	2:00	0	S
 Rule	US	1967	2006	-	Oct	lastSun	2:00	0	S
 Rule	US	1967	1973	-	Apr	lastSun	2:00	1:00	D
 Rule	US	1974	only	-	Jan	6	2:00	1:00	D
@@ -2124,11 +2124,11 @@ Zone America/Dawson	-9:17:40 -	LMT	1900 Aug 20
 
 # Mexico
 
-# From Paul Eggert (2001-03-05):
+# From Paul Eggert (2014-12-07):
 # The Investigation and Analysis Service of the
 # Mexican Library of Congress (MLoC) has published a
 # history of Mexican local time (in Spanish)
-# http://www.cddhcu.gob.mx/bibliot/publica/inveyana/polisoc/horver/
+# http://www.diputados.gob.mx/bibliot/publica/inveyana/polisoc/horver/index.htm
 #
 # Here are the discrepancies between Shanks & Pottenger (S&P) and the MLoC.
 # (In all cases we go with the MLoC.)
@@ -2297,6 +2297,24 @@ Zone America/Dawson	-9:17:40 -	LMT	1900 Aug 20
 # efecto desde las dos horas del segundo domingo de marzo y concluirá a
 # las dos horas del primer domingo de noviembre.
 
+# From Steffen Thorsen (2014-12-08), translated by Gwillim Law:
+# The Mexican state of Quintana Roo will likely change to EST in 2015.
+#
+# http://www.unioncancun.mx/articulo/2014/12/04/medio-ambiente/congreso-aprueba-una-hora-mas-de-sol-en-qroo
+# "With this change, the time conflict that has existed between the municipios
+# of Quintana Roo and the municipio of Felipe Carrillo Puerto may come to an
+# end. The latter declared itself in rebellion 15 years ago when a time change
+# was initiated in Mexico, and since then it has refused to change its time
+# zone along with the rest of the country."
+#
+# From Steffen Thorsen (2015-01-14), translated by Gwillim Law:
+# http://sipse.com/novedades/confirman-aplicacion-de-nueva-zona-horaria-para-quintana-roo-132331.html
+# "...the new time zone will come into effect at two o'clock on the first Sunday
+# of February, when we will have to advance the clock one hour from its current
+# time..."
+#
+# Also, the new zone will not use DST.
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Mexico	1939	only	-	Feb	5	0:00	1:00	D
 Rule	Mexico	1939	only	-	Jun	25	0:00	0	S
@@ -2317,7 +2335,8 @@ Rule	Mexico	2002	max	-	Oct	lastSun	2:00	0	S
 Zone America/Cancun	-5:47:04 -	LMT	1922 Jan  1  0:12:56
 			-6:00	-	CST	1981 Dec 23
 			-5:00	Mexico	E%sT	1998 Aug  2  2:00
-			-6:00	Mexico	C%sT
+			-6:00	Mexico	C%sT	2015 Feb  1  2:00
+			-5:00	-	EST
 # Campeche, Yucatán; represented by Mérida
 Zone America/Merida	-5:58:28 -	LMT	1922 Jan  1  0:01:32
 			-6:00	-	CST	1981 Dec 23

src/timezone/data/southamerica

@@ -1206,6 +1206,11 @@ Zone America/Rio_Branco	-4:31:12 -	LMT	1914
 # DST Start: first Saturday of September 2014 (Sun 07 Sep 2014 04:00 UTC)
 # http://www.diariooficial.interior.gob.cl//media/2014/02/19/do-20140219.pdf
 
+# From Juan Correa (2015-01-28):
+# ... today the Ministry of Energy announced that Chile will drop DST, will keep
+# "summer time" (UTC -3 / UTC -5) all year round....
+# http://www.minenergia.cl/ministerio/noticias/generales/ministerio-de-energia-anuncia.html
+
 # NOTE: ChileAQ rules for Antarctic bases are stored separately in the
 # 'antarctica' file.
 
@@ -1247,8 +1252,8 @@ Rule	Chile	2009	only	-	Mar	Sun>=9	3:00u	0	-
 Rule	Chile	2010	only	-	Apr	Sun>=1	3:00u	0	-
 Rule	Chile	2011	only	-	May	Sun>=2	3:00u	0	-
 Rule	Chile	2011	only	-	Aug	Sun>=16	4:00u	1:00	S
-Rule	Chile	2012	max	-	Apr	Sun>=23	3:00u	0	-
-Rule	Chile	2012	max	-	Sep	Sun>=2	4:00u	1:00	S
+Rule	Chile	2012	2015	-	Apr	Sun>=23	3:00u	0	-
+Rule	Chile	2012	2014	-	Sep	Sun>=2	4:00u	1:00	S
 # IATA SSIM anomalies: (1992-02) says 1992-03-14;
 # (1996-09) says 1998-03-08.  Ignore these.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -1259,11 +1264,13 @@ Zone America/Santiago	-4:42:46 -	LMT	1890
 			-4:00	-	CLT	1919 Jul  1 # Chile Time
 			-4:42:46 -	SMT	1927 Sep  1 # Santiago Mean Time
 			-5:00	Chile	CL%sT	1947 May 22 # Chile Time
-			-4:00	Chile	CL%sT
+			-4:00	Chile	CL%sT	2015 Apr 26  3:00u
+			-3:00	-	CLT
 Zone Pacific/Easter	-7:17:44 -	LMT	1890
 			-7:17:28 -	EMT	1932 Sep    # Easter Mean Time
-			-7:00	Chile	EAS%sT	1982 Mar 13 21:00 # Easter Time
-			-6:00	Chile	EAS%sT
+			-7:00	Chile	EAS%sT	1982 Mar 13 3:00u # Easter Time
+			-6:00	Chile	EAS%sT	2015 Apr 26 3:00u
+			-5:00	-	EAST
 #
 # Salas y Gómez Island is uninhabited.
 # Other Chilean locations, including Juan Fernández Is, Desventuradas Is,

src/timezone/data/zone.tab

@@ -274,7 +274,7 @@ MU	-2010+05730	Indian/Mauritius
 MV	+0410+07330	Indian/Maldives
 MW	-1547+03500	Africa/Blantyre
 MX	+1924-09909	America/Mexico_City	Central Time - most locations
-MX	+2105-08646	America/Cancun	Central Time - Quintana Roo
+MX	+2105-08646	America/Cancun	Eastern Standard Time - Quintana Roo
 MX	+2058-08937	America/Merida	Central Time - Campeche, Yucatan
 MX	+2540-10019	America/Monterrey	Mexican Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas away from US border
 MX	+2550-09730	America/Matamoros	US Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas near US border

src/timezone/data/zone1970.tab

@@ -233,7 +233,7 @@ MT	+3554+01431	Europe/Malta
 MU	-2010+05730	Indian/Mauritius
 MV	+0410+07330	Indian/Maldives
 MX	+1924-09909	America/Mexico_City	Central Time - most locations
-MX	+2105-08646	America/Cancun	Central Time - Quintana Roo
+MX	+2105-08646	America/Cancun	Eastern Standard Time - Quintana Roo
 MX	+2058-08937	America/Merida	Central Time - Campeche, Yucatán
 MX	+2540-10019	America/Monterrey	Mexican Central Time - Coahuila, Durango, Nuevo León, Tamaulipas away from US border
 MX	+2550-09730	America/Matamoros	US Central Time - Coahuila, Durango, Nuevo León, Tamaulipas near US border

src/timezone/known_abbrevs.txt

@@ -42,7 +42,7 @@ CHOT	28800
 CHUT	36000
 CKT	-36000
 CLST	-10800	D
-CLT	-14400
+CLT	-10800
 COT	-18000
 CST	-18000
 CST	-21600
@@ -53,7 +53,7 @@ ChST	36000
 DAVT	25200
 DDUT	36000
 EASST	-18000	D
-EAST	-21600
+EAST	-18000
 EAT	10800
 ECT	-18000
 EDT	-14400	D

src/timezone/tznames/America.txt

@@ -116,7 +116,6 @@ CDT    -14400 D  # Cuba Central Daylight Time
 #  - CDT: Cuba Central Daylight Time (America)
 #  - CDT: Canada Central Daylight Time (America)
 CDT    -18000 D  # Central Daylight Time
-                 #     (America/Cancun)
                  #     (America/Chicago)
                  #     (America/Menominee)
                  #     (America/Merida)
@@ -126,10 +125,10 @@ CDT    -18000 D  # Central Daylight Time
                  #     (America/Rainy_River)
                  #     (America/Rankin_Inlet)
                  #     (America/Winnipeg)
-CLST   -10800 D  # Chile Summer Time
+CLST   -10800 D  # Chile Summer Time (obsolete)
                  #     (America/Santiago)
                  #     (Antarctica/Palmer)
-CLT    -14400    # Chile Time
+CLT    America/Santiago  # Chile Time
                  #     (America/Santiago)
                  #     (Antarctica/Palmer)
 COT    -18000    # Columbia Time (not in zic)
@@ -146,7 +145,6 @@ CST    -18000    # Cuba Central Standard Time (America)
 #  - CST: China Standard Time (Asia)
 #  - CST: Cuba Central Standard Time (America)
 CST    -21600    # Central Standard Time (America)
-                 #     (America/Cancun)
                  #     (America/Chicago)
                  #     (America/Menominee)
                  #     (America/Merida)
@@ -186,6 +184,7 @@ EGT     -3600    # East Greenland Time (Svalbard & Jan Mayen)
 # Other timezones:
 #  - EST: Eastern Standard Time (Australia)
 EST    -18000    # Eastern Standard Time (America)
+                 #     (America/Cancun)
                  #     (America/Cayman)
                  #     (America/Coral_Harbour)
                  #     (America/Detroit)

src/timezone/tznames/Antarctica.txt

@@ -10,10 +10,10 @@
 AWST    28800    # Australian Western Standard Time
                  #     (Antarctica/Casey)
                  #     (Australia/Perth)
-CLST   -10800 D  # Chile Summer Time
+CLST   -10800 D  # Chile Summer Time (obsolete)
                  #     (America/Santiago)
                  #     (Antarctica/Palmer)
-CLT    -14400    # Chile Time
+CLT    America/Santiago  # Chile Time
                  #     (America/Santiago)
                  #     (Antarctica/Palmer)
 DAVT    Antarctica/Davis  # Davis Time (Antarctica)