8176044: (tz) Support tzdata2017a

Reviewed-by: naoto

make/data/tzdata/VERSION

@@ -21,4 +21,4 @@
 # or visit www.oracle.com if you need additional information or have any
 # questions.
 #
-tzdata2016j
+tzdata2017a

make/data/tzdata/africa

@@ -29,15 +29,15 @@
 # tz@iana.org for general use in the future).  For more, please see
 # the file CONTRIBUTING in the tz distribution.
 
-# From Paul Eggert (2014-10-31):
+# From Paul Eggert (2017-02-20):
 #
 # Unless otherwise specified, the source for data through 1990 is:
 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
 # San Diego: ACS Publications, Inc. (2003).
 # Unfortunately this book contains many errors and cites no sources.
 #
-# Gwillim Law writes that a good source
-# for recent time zone data is the International Air Transport
+# Many years ago Gwillim Law wrote that a good source
+# for time zone data was the International Air Transport
 # Association's Standard Schedules Information Manual (IATA SSIM),
 # published semiannually.  Law sent in several helpful summaries
 # of the IATA's data after 1990.  Except where otherwise noted,
@@ -54,39 +54,33 @@
 # A reliable and entertaining source about time zones is
 # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
 #
+# European-style abbreviations are commonly used along the Mediterranean.
+# For sub-Saharan Africa abbreviations were less standardized.
 # Previous editions of this database used WAT, CAT, SAT, and EAT
-# for +0:00 through +3:00, respectively,
-# but Mark R V Murray reports that
-# 'SAST' is the official abbreviation for +2:00 in the country of South Africa,
-# 'CAT' is commonly used for +2:00 in countries north of South Africa, and
-# 'WAT' is probably the best name for +1:00, as the common phrase for
+# for UT +00 through +03, respectively,
+# but in 1997 Mark R V Murray reported that
+# 'SAST' is the official abbreviation for +02 in the country of South Africa,
+# 'CAT' is commonly used for +02 in countries north of South Africa, and
+# 'WAT' is probably the best name for +01, as the common phrase for
 # the area that includes Nigeria is "West Africa".
-# He has heard of "Western Sahara Time" for +0:00 but can find no reference.
-#
-# To make things confusing, 'WAT' seems to have been used for -1:00 long ago;
-# I'd guess that this was because people needed _some_ name for -1:00,
-# and at the time, far west Africa was the only major land area in -1:00.
-# This usage is now obsolete, as the last use of -1:00 on the African
-# mainland seems to have been 1976 in Western Sahara.
-#
-# To summarize, the following abbreviations seem to have some currency:
-#	-1:00	WAT	West Africa Time (no longer used)
-#	 0:00	GMT	Greenwich Mean Time
-#	 2:00	CAT	Central Africa Time
-#	 2:00	SAST	South Africa Standard Time
-# and Murray suggests the following abbreviation:
-#	 1:00	WAT	West Africa Time
-# I realize that this leads to 'WAT' being used for both -1:00 and 1:00
-# for times before 1976, but this is the best I can think of
-# until we get more information.
+#
+# To summarize, the following abbreviations seemed to have some currency:
+#	 +00	GMT	Greenwich Mean Time
+#	 +02	CAT	Central Africa Time
+#	 +02	SAST	South Africa Standard Time
+# and Murray suggested the following abbreviation:
+#	 +01	WAT	West Africa Time
+# Murray's suggestion seems to have caught on in news reports and the like.
+# I vaguely recall 'WAT' also being used for -01 in the past but
+# cannot now come up with solid citations.
 #
 # I invented the following abbreviations; corrections are welcome!
-#	 2:00	WAST	West Africa Summer Time
-#	 2:30	BEAT	British East Africa Time (no longer used)
-#	 2:45	BEAUT	British East Africa Unified Time (no longer used)
-#	 3:00	CAST	Central Africa Summer Time (no longer used)
-#	 3:00	SAST	South Africa Summer Time (no longer used)
-#	 3:00	EAT	East Africa Time
+#	 +02	WAST	West Africa Summer Time
+#	 +03	CAST	Central Africa Summer Time (no longer used)
+#	 +03	SAST	South Africa Summer Time (no longer used)
+#	 +03	EAT	East Africa Time
+# 'EAT' also seems to have caught on; the others are rare but are paired
+# with better-attested non-DST abbreviations.
 
 # Algeria
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
@@ -144,17 +138,17 @@ Zone	Africa/Algiers	0:12:12 -	LMT	1891 Mar 15  0:01
 
 # Cape Verde / Cabo Verde
 #
-# Shanks gives 1907 for the transition to CVT.
+# Shanks gives 1907 for the transition to +02.
 # Perhaps the 1911-05-26 Portuguese decree
-# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
+# https://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
 # merely made it official?
 #
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Atlantic/Cape_Verde -1:34:04 -	LMT	1907        # Praia
-			-2:00	-	CVT	1942 Sep
-			-2:00	1:00	CVST	1945 Oct 15
-			-2:00	-	CVT	1975 Nov 25  2:00
-			-1:00	-	CVT
+			-2:00	-	-02	1942 Sep
+			-2:00	1:00	-01	1945 Oct 15
+			-2:00	-	-02	1975 Nov 25  2:00
+			-1:00	-	-01
 
 # Central African Republic
 # See Africa/Lagos.
@@ -411,7 +405,7 @@ Rule	Ghana	1920	1942	-	Sep	 1	0:00	0:20	GHST
 Rule	Ghana	1920	1942	-	Dec	31	0:00	0	GMT
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Accra	-0:00:52 -	LMT	1918
-			 0:00	Ghana	%s
+			 0:00	Ghana	GMT/+0020
 
 # Guinea
 # See Africa/Abidjan.
@@ -420,20 +414,20 @@ Zone	Africa/Accra	-0:00:52 -	LMT	1918
 #
 # Shanks gives 1911-05-26 for the transition to WAT,
 # evidently confusing the date of the Portuguese decree
-# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
+# https://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
 # with the date that it took effect, namely 1912-01-01.
 #
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Bissau	-1:02:20 -	LMT	1912 Jan  1
-			-1:00	-	WAT	1975
+			-1:00	-	-01	1975
 			 0:00	-	GMT
 
 # Kenya
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Nairobi	2:27:16	-	LMT	1928 Jul
 			3:00	-	EAT	1930
-			2:30	-	BEAT	1940
-			2:45	-	BEAUT	1960
+			2:30	-	+0230	1940
+			2:45	-	+0245	1960
 			3:00	-	EAT
 Link Africa/Nairobi Africa/Addis_Ababa	 # Ethiopia
 Link Africa/Nairobi Africa/Asmara	 # Eritrea
@@ -460,7 +454,7 @@ Link Africa/Nairobi Indian/Mayotte
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Monrovia	-0:43:08 -	LMT	1882
 			-0:43:08 -	MMT	1919 Mar # Monrovia Mean Time
-			-0:44:30 -	LRT	1972 May # Liberia Time
+			-0:44:30 -	-004430	1972 May
 			 0:00	-	GMT
 
 ###############################################################################
@@ -619,7 +613,7 @@ Rule Mauritius	2008	only	-	Oct	lastSun	2:00	1:00	S
 Rule Mauritius	2009	only	-	Mar	lastSun	2:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Indian/Mauritius	3:50:00 -	LMT	1907 # Port Louis
-			4:00 Mauritius	MU%sT	# Mauritius Time
+			4:00 Mauritius	+04/+05
 # Agalega Is, Rodriguez
 # no information; probably like Indian/Mauritius
 
@@ -938,14 +932,14 @@ Zone Africa/Casablanca	-0:30:20 -	LMT	1913 Oct 26
 # since most of it was then controlled by Morocco.
 
 Zone Africa/El_Aaiun	-0:52:48 -	LMT	1934 Jan # El Aaiún
-			-1:00	-	WAT	1976 Apr 14
+			-1:00	-	-01	1976 Apr 14
 			 0:00	Morocco	WE%sT
 
 # Mozambique
 #
 # Shanks gives 1903-03-01 for the transition to CAT.
 # Perhaps the 1911-05-26 Portuguese decree
-# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
+# https://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
 # merely made it official?
 #
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -972,16 +966,19 @@ Link Africa/Maputo Africa/Lusaka	# Zambia
 # the country are close to 40 minutes earlier in sunrise than the rest
 # of the country.
 #
-# From Paul Eggert (2007-03-31):
-# Apparently the Caprivi Strip informally observes Botswana time, but
-# we have no details.  In the meantime people there can use Africa/Gaborone.
+# From Paul Eggert (2017-02-22):
+# Although the Zambezi Region (formerly known as Caprivi) informally
+# observes Botswana time, we have no details about historical practice.
+# In the meantime people there can use Africa/Gaborone.
+# See: Immanuel S. The Namibian. 2017-02-23.
+# http://www.namibian.com.na/51480/read/Time-change-divides-lawmakers
 
 # RULE	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Namibia	1994	max	-	Sep	Sun>=1	2:00	1:00	S
 Rule	Namibia	1995	max	-	Apr	Sun>=1	2:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Windhoek	1:08:24 -	LMT	1892 Feb 8
-			1:30	-	SWAT	1903 Mar    # SW Africa Time
+			1:30	-	+0130	1903 Mar
 			2:00	-	SAST	1942 Sep 20  2:00
 			2:00	1:00	SAST	1943 Mar 21  2:00
 			2:00	-	SAST	1990 Mar 21 # independence
@@ -1008,7 +1005,7 @@ Link Africa/Lagos Africa/Porto-Novo  # Benin
 # Réunion
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Indian/Reunion	3:41:52 -	LMT	1911 Jun # Saint-Denis
-			4:00	-	RET	# Réunion Time
+			4:00	-	+04
 #
 # Crozet Islands also observes Réunion time; see the 'antarctica' file.
 #
@@ -1043,7 +1040,7 @@ Zone	Indian/Reunion	3:41:52 -	LMT	1911 Jun # Saint-Denis
 # Seychelles
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Indian/Mahe	3:41:48 -	LMT	1906 Jun # Victoria
-			4:00	-	SCT	# Seychelles Time
+			4:00	-	+04
 # From Paul Eggert (2001-05-30):
 # Aldabra, Farquhar, and Desroches, originally dependencies of the
 # Seychelles, were transferred to the British Indian Ocean Territory

make/data/tzdata/antarctica

@@ -133,7 +133,8 @@ 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

make/data/tzdata/australasia

@@ -67,8 +67,8 @@ Zone Australia/Perth	 7:43:24 -	LMT	1895 Dec
 			 8:00	Aus	AW%sT	1943 Jul
 			 8:00	AW	AW%sT
 Zone Australia/Eucla	 8:35:28 -	LMT	1895 Dec
-			 8:45	Aus	ACW%sT	1943 Jul
-			 8:45	AW	ACW%sT
+			 8:45	Aus +0845/+0945	1943 Jul
+			 8:45	AW  +0845/+0945
 
 # Queensland
 #
@@ -235,7 +235,8 @@ Rule	LH	2008	max	-	Apr	Sun>=1	2:00	0	S
 Rule	LH	2008	max	-	Oct	Sun>=1	2:00	0:30	D
 Zone Australia/Lord_Howe 10:36:20 -	LMT	1895 Feb
 			10:00	-	AEST	1981 Mar
-			10:30	LH	LH%sT
+			10:30	LH	+1030/+1130 1985 Jul
+			10:30	LH	+1030/+11
 
 # Australian miscellany
 #
@@ -273,19 +274,19 @@ Zone Antarctica/Macquarie 0	-	-00	1899 Nov
 			0	-	-00	1948 Mar 25
 			10:00	Aus	AE%sT	1967
 			10:00	AT	AE%sT	2010 Apr  4  3:00
-			11:00	-	MIST	# Macquarie I Standard Time
+			11:00	-	+11
 
 # Christmas
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Indian/Christmas	7:02:52 -	LMT	1895 Feb
-			7:00	-	CXT	# Christmas Island Time
+			7:00	-	+07
 
 # Cocos (Keeling) Is
 # These islands were ruled by the Ross family from about 1830 to 1978.
 # We don't know when standard time was introduced; for now, we guess 1900.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Indian/Cocos	6:27:40	-	LMT	1900
-			6:30	-	CCT	# Cocos Islands Time
+			6:30	-	+0630
 
 
 # Fiji
@@ -398,16 +399,16 @@ Rule	Fiji	2014	max	-	Nov	Sun>=1	2:00	1:00	S
 Rule	Fiji	2015	max	-	Jan	Sun>=15	3:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Fiji	11:55:44 -	LMT	1915 Oct 26 # Suva
-			12:00	Fiji	FJ%sT	# Fiji Time
+			12:00	Fiji	+12/+13
 
 # French Polynesia
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Gambier	 -8:59:48 -	LMT	1912 Oct # Rikitea
-			 -9:00	-	GAMT	# Gambier Time
+			 -9:00	-	-09
 Zone	Pacific/Marquesas -9:18:00 -	LMT	1912 Oct
-			 -9:30	-	MART	# Marquesas Time
+			 -9:30	-	-0930
 Zone	Pacific/Tahiti	 -9:58:16 -	LMT	1912 Oct # Papeete
-			-10:00	-	TAHT	# Tahiti Time
+			-10:00	-	-10
 # Clipperton (near North America) is administered from French Polynesia;
 # it is uninhabited.
 
@@ -422,15 +423,15 @@ Link Pacific/Guam Pacific/Saipan # N Mariana Is
 # Kiribati
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Tarawa	 11:32:04 -	LMT	1901 # Bairiki
-			 12:00	-	GILT	# Gilbert Is Time
+			 12:00	-	+12
 Zone Pacific/Enderbury	-11:24:20 -	LMT	1901
-			-12:00	-	PHOT	1979 Oct # Phoenix Is Time
-			-11:00	-	PHOT	1995
-			 13:00	-	PHOT
+			-12:00	-	-12	1979 Oct
+			-11:00	-	-11	1995
+			 13:00	-	+13
 Zone Pacific/Kiritimati	-10:29:20 -	LMT	1901
-			-10:40	-	LINT	1979 Oct # Line Is Time
-			-10:00	-	LINT	1995
-			 14:00	-	LINT
+			-10:40	-	-1040	1979 Oct
+			-10:00	-	-10	1995
+			 14:00	-	+14
 
 # N Mariana Is
 # See Pacific/Guam.
@@ -438,31 +439,31 @@ Zone Pacific/Kiritimati	-10:29:20 -	LMT	1901
 # Marshall Is
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Majuro	11:24:48 -	LMT	1901
-			11:00	-	MHT	1969 Oct # Marshall Islands Time
-			12:00	-	MHT
+			11:00	-	+11	1969 Oct
+			12:00	-	+12
 Zone Pacific/Kwajalein	11:09:20 -	LMT	1901
-			11:00	-	MHT	1969 Oct
-			-12:00	-	KWAT	1993 Aug 20 # Kwajalein Time
-			12:00	-	MHT
+			11:00	-	+11	1969 Oct
+			-12:00	-	-12	1993 Aug 20
+			12:00	-	+12
 
 # Micronesia
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Chuuk	10:07:08 -	LMT	1901
-			10:00	-	CHUT	# Chuuk Time
+			10:00	-	+10
 Zone Pacific/Pohnpei	10:32:52 -	LMT	1901 # Kolonia
-			11:00	-	PONT	# Pohnpei Time
+			11:00	-	+11
 Zone Pacific/Kosrae	10:51:56 -	LMT	1901
-			11:00	-	KOST	1969 Oct # Kosrae Time
-			12:00	-	KOST	1999
-			11:00	-	KOST
+			11:00	-	+11	1969 Oct
+			12:00	-	+12	1999
+			11:00	-	+11
 
 # Nauru
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Nauru	11:07:40 -	LMT	1921 Jan 15 # Uaobe
-			11:30	-	NRT	1942 Mar 15 # Nauru Time
-			9:00	-	JST	1944 Aug 15
-			11:30	-	NRT	1979 May
-			12:00	-	NRT
+			11:30	-	+1130	1942 Mar 15
+			9:00	-	+09	1944 Aug 15
+			11:30	-	+1130	1979 May
+			12:00	-	+12
 
 # New Caledonia
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
@@ -473,7 +474,7 @@ Rule	NC	1996	only	-	Dec	 1	2:00s	1:00	S
 Rule	NC	1997	only	-	Mar	 2	2:00s	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Noumea	11:05:48 -	LMT	1912 Jan 13 # Nouméa
-			11:00	NC	NC%sT
+			11:00	NC	+11/+12
 
 
 ###############################################################################
@@ -514,8 +515,8 @@ Zone Pacific/Auckland	11:39:04 -	LMT	1868 Nov  2
 			11:30	NZ	NZ%sT	1946 Jan  1
 			12:00	NZ	NZ%sT
 Zone Pacific/Chatham	12:13:48 -	LMT	1868 Nov  2
-			12:15	-	CHAST	1946 Jan  1
-			12:45	Chatham	CHA%sT
+			12:15	-	+1215	1946 Jan  1
+			12:45	Chatham	+1245/+1345
 
 Link Pacific/Auckland Antarctica/McMurdo
 
@@ -537,8 +538,8 @@ Rule	Cook	1979	1991	-	Mar	Sun>=1	0:00	0	-
 Rule	Cook	1979	1990	-	Oct	lastSun	0:00	0:30	HS
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Rarotonga	-10:39:04 -	LMT	1901        # Avarua
-			-10:30	-	CKT	1978 Nov 12 # Cook Is Time
-			-10:00	Cook	CK%sT
+			-10:30	-	-1030	1978 Nov 12
+			-10:00	Cook	-10/-0930
 
 ###############################################################################
 
@@ -546,29 +547,29 @@ Zone Pacific/Rarotonga	-10:39:04 -	LMT	1901        # Avarua
 # Niue
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Niue	-11:19:40 -	LMT	1901        # Alofi
-			-11:20	-	NUT	1951        # Niue Time
-			-11:30	-	NUT	1978 Oct  1
-			-11:00	-	NUT
+			-11:20	-	-1120	1951
+			-11:30	-	-1130	1978 Oct  1
+			-11:00	-	-11
 
 # Norfolk
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Norfolk	11:11:52 -	LMT	1901 # Kingston
-			11:12	-	NMT	1951 # Norfolk Mean Time
-			11:30	-	NFT	1974 Oct 27 02:00 # Norfolk T.
-			11:30	1:00	NFST	1975 Mar  2 02:00
-			11:30	-	NFT	2015 Oct  4 02:00
-			11:00	-	NFT
+			11:12	-	+1112	1951
+			11:30	-	+1130	1974 Oct 27 02:00
+			11:30	1:00	+1230	1975 Mar  2 02:00
+			11:30	-	+1130	2015 Oct  4 02:00
+			11:00	-	+11
 
 # Palau (Belau)
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Palau	8:57:56 -	LMT	1901 # Koror
-			9:00	-	PWT	# Palau Time
+			9:00	-	+09
 
 # Papua New Guinea
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Port_Moresby 9:48:40 -	LMT	1880
 			9:48:32	-	PMMT	1895 # Port Moresby Mean Time
-			10:00	-	PGT	# Papua New Guinea Time
+			10:00	-	+10
 #
 # From Paul Eggert (2014-10-13):
 # Base the Bougainville entry on the Arawa-Kieta region, which appears to have
@@ -583,28 +584,26 @@ Zone Pacific/Port_Moresby 9:48:40 -	LMT	1880
 # and seem to have controlled it until their 1945-08-21 surrender.
 #
 # The Autonomous Region of Bougainville switched from UT +10 to +11
-# on 2014-12-28 at 02:00.  They call +11 "Bougainville Standard Time";
-# abbreviate this as BST.  See:
+# on 2014-12-28 at 02:00.  They call +11 "Bougainville Standard Time".
+# See:
 # http://www.bougainville24.com/bougainville-issues/bougainville-gets-own-timezone/
 #
 Zone Pacific/Bougainville 10:22:16 -	LMT	1880
 			 9:48:32 -	PMMT	1895
-			10:00	-	PGT	1942 Jul
-			 9:00	-	JST	1945 Aug 21
-			10:00	-	PGT	2014 Dec 28  2:00
-			11:00	-	BST
+			10:00	-	+10	1942 Jul
+			 9:00	-	+09	1945 Aug 21
+			10:00	-	+10	2014 Dec 28  2:00
+			11:00	-	+11
 
 # Pitcairn
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Pitcairn	-8:40:20 -	LMT	1901        # Adamstown
-			-8:30	-	PNT	1998 Apr 27  0:00
-			-8:00	-	PST	# Pitcairn Standard Time
+			-8:30	-	-0830	1998 Apr 27  0:00
+			-8:00	-	-08
 
 # American Samoa
 Zone Pacific/Pago_Pago	 12:37:12 -	LMT	1879 Jul  5
 			-11:22:48 -	LMT	1911
-			-11:00	-	NST	1967 Apr    # N=Nome
-			-11:00	-	BST	1983 Nov 30 # B=Bering
 			-11:00	-	SST	            # S=Samoa
 Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands
 
@@ -685,17 +684,17 @@ Rule	WS	2012	max	-	Sep	lastSun	3:00	1	D
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Apia	 12:33:04 -	LMT	1879 Jul  5
 			-11:26:56 -	LMT	1911
-			-11:30	-	WSST	1950
-			-11:00	WS	S%sT	2011 Dec 29 24:00 # S=Samoa
-			 13:00	WS	WS%sT
+			-11:30	-	-1130	1950
+			-11:00	WS	-11/-10	2011 Dec 29 24:00
+			 13:00	WS	+13/+14
 
 # Solomon Is
 # excludes Bougainville, for which see Papua New Guinea
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Guadalcanal 10:39:48 -	LMT	1912 Oct # Honiara
-			11:00	-	SBT	# Solomon Is Time
+			11:00	-	+11
 
-# Tokelau Is
+# Tokelau
 #
 # From Gwillim Law (2011-12-29)
 # A correspondent informed me that Tokelau, like Samoa, will be skipping
@@ -716,8 +715,8 @@ Zone Pacific/Guadalcanal 10:39:48 -	LMT	1912 Oct # Honiara
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Fakaofo	-11:24:56 -	LMT	1901
-			-11:00	-	TKT	2011 Dec 30 # Tokelau Time
-			13:00	-	TKT
+			-11:00	-	-11	2011 Dec 30
+			13:00	-	+13
 
 # Tonga
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
@@ -736,7 +735,7 @@ Zone Pacific/Tongatapu	12:19:20 -	LMT	1901
 # Tuvalu
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Funafuti	11:56:52 -	LMT	1901
-			12:00	-	TVT	# Tuvalu Time
+			12:00	-	+12
 
 
 # US minor outlying islands
@@ -760,10 +759,11 @@ Zone Pacific/Funafuti	11:56:52 -	LMT	1901
 
 # Johnston
 #
-# From Paul Eggert (2014-03-11):
+# From Paul Eggert (2017-02-10):
 # Sometimes Johnston kept Hawaii time, and sometimes it was an hour behind.
 # Details are uncertain.  We have no data for Johnston after 1970, so
-# treat it like Hawaii for now.
+# treat it like Hawaii for now.  Since Johnston is now uninhabited,
+# its link to Pacific/Honolulu is in the 'backward' file.
 #
 # In his memoirs of June 6th to October 4, 1945
 # <http://www.315bw.org/Herb_Bach.htm> (2005), Herbert C. Bach writes,
@@ -783,8 +783,6 @@ Zone Pacific/Funafuti	11:56:52 -	LMT	1901
 # See the table on page 4 where he lists GMT and local times for the tests; a
 # footnote for the JI tests reads that local time is "JI time = Hawaii Time
 # Minus One Hour".
-#
-# See 'northamerica' for Pacific/Johnston.
 
 # Kingman
 # uninhabited
@@ -798,7 +796,7 @@ Zone Pacific/Funafuti	11:56:52 -	LMT	1901
 # Wake
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Wake	11:06:28 -	LMT	1901
-			12:00	-	WAKT	# Wake Time
+			12:00	-	+12
 
 
 # Vanuatu
@@ -811,12 +809,12 @@ Rule	Vanuatu	1992	1993	-	Jan	Sun>=23	0:00	0	-
 Rule	Vanuatu	1992	only	-	Oct	Sun>=23	0:00	1:00	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Efate	11:13:16 -	LMT	1912 Jan 13 # Vila
-			11:00	Vanuatu	VU%sT	# Vanuatu Time
+			11:00	Vanuatu	+11/+12
 
 # Wallis and Futuna
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Wallis	12:15:20 -	LMT	1901
-			12:00	-	WFT	# Wallis & Futuna Time
+			12:00	-	+12
 
 ###############################################################################
 
@@ -827,15 +825,15 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # tz@iana.org for general use in the future).  For more, please see
 # the file CONTRIBUTING in the tz distribution.
 
-# From Paul Eggert (2014-10-31):
+# From Paul Eggert (2017-02-10):
 #
 # Unless otherwise specified, the source for data through 1990 is:
 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
 # San Diego: ACS Publications, Inc. (2003).
 # Unfortunately this book contains many errors and cites no sources.
 #
-# Gwillim Law writes that a good source
-# for recent time zone data is the International Air Transport
+# Many years ago Gwillim Law wrote that a good source
+# for time zone data was the International Air Transport
 # Association's Standard Schedules Information Manual (IATA SSIM),
 # published semiannually.  Law sent in several helpful summaries
 # of the IATA's data after 1990.  Except where otherwise noted,
@@ -852,28 +850,19 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # A reliable and entertaining source about time zones is
 # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
 #
-# I invented the abbreviations marked '*' in the following table;
-# the rest are from earlier versions of this file, or from other sources.
+# The following abbreviations are from other sources.
 # Corrections are welcome!
 #		std	dst
 #		LMT		Local Mean Time
 #	  8:00	AWST	AWDT	Western Australia
-#	  8:45	ACWST	ACWDT	Central Western Australia*
-#	  9:00	JST		Japan
 #	  9:30	ACST	ACDT	Central Australia
 #	 10:00	AEST	AEDT	Eastern Australia
+#	 10:00	GST		Guam through 2000
 #	 10:00	ChST		Chamorro
-#	 10:30	LHST	LHDT	Lord Howe*
-#	 11:00	BST		Bougainville*
 #	 11:30	NZMT	NZST	New Zealand through 1945
 #	 12:00	NZST	NZDT	New Zealand 1946-present
-#	 12:15	CHAST		Chatham through 1945*
-#	 12:45	CHAST	CHADT	Chatham 1946-present*
-#	 13:00	WSST	WSDT	(western) Samoa 2011-present*
-#	-11:30	WSST		Western Samoa through 1950*
 #	-11:00	SST		Samoa
 #	-10:00	HST		Hawaii
-#	- 8:00	PST		Pitcairn*
 #
 # See the 'northamerica' file for Hawaii.
 # See the 'southamerica' file for Easter I and the Galápagos Is.

make/data/tzdata/backward

@@ -119,6 +119,7 @@ Link	Pacific/Auckland	NZ
 Link	Pacific/Chatham		NZ-CHAT
 Link	America/Denver		Navajo
 Link	Asia/Shanghai		PRC
+Link	Pacific/Honolulu	Pacific/Johnston
 Link	Pacific/Pohnpei		Pacific/Ponape
 Link	Pacific/Pago_Pago	Pacific/Samoa
 Link	Pacific/Chuuk		Pacific/Truk

make/data/tzdata/europe

@@ -29,15 +29,15 @@
 # tz@iana.org for general use in the future).  For more, please see
 # the file CONTRIBUTING in the tz distribution.
 
-# From Paul Eggert (2014-10-31):
+# From Paul Eggert (2017-02-10):
 #
 # Unless otherwise specified, the source for data through 1990 is:
 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
 # San Diego: ACS Publications, Inc. (2003).
 # Unfortunately this book contains many errors and cites no sources.
 #
-# Gwillim Law writes that a good source
-# for recent time zone data is the International Air Transport
+# Many years ago Gwillim Law wrote that a good source
+# for time zone data was the International Air Transport
 # Association's Standard Schedules Information Manual (IATA SSIM),
 # published semiannually.  Law sent in several helpful summaries
 # of the IATA's data after 1990.  Except where otherwise noted,
@@ -79,26 +79,23 @@
 #	History of Summer Time
 #	<http://pcdsh01.on.br/HISTHV.htm>
 #	(1998-09-21, in Portuguese)
-
 #
 # I invented the abbreviations marked '*' in the following table;
-# the rest are from earlier versions of this file, or from other sources.
-# Corrections are welcome!
-#                   std dst  2dst
-#                   LMT           Local Mean Time
-#       -4:00       AST ADT       Atlantic
-#       -3:00       WGT WGST      Western Greenland*
-#       -1:00       EGT EGST      Eastern Greenland*
-#        0:00       GMT BST  BDST Greenwich, British Summer
-#        0:00       GMT IST       Greenwich, Irish Summer
-#        0:00       WET WEST WEMT Western Europe
-#        0:19:32.13 AMT NST       Amsterdam, Netherlands Summer (1835-1937)*
-#        0:20       NET NEST      Netherlands (1937-1940)*
-#        1:00       BST           British Standard (1968-1971)
-#        1:00       CET CEST CEMT Central Europe
-#        1:00:14    SET           Swedish (1879-1899)*
-#        2:00       EET EEST      Eastern Europe
-#        3:00       MSK MSD       Moscow
+# the rest are variants of the "xMT" pattern for a city's mean time,
+# or are from other sources.  Corrections are welcome!
+#                   std  dst  2dst
+#                   LMT             Local Mean Time
+#       -4:00       AST  ADT        Atlantic
+#        0:00       GMT  BST  BDST  Greenwich, British Summer
+#        0:00       GMT  IST        Greenwich, Irish Summer
+#        0:00       WET  WEST WEMT  Western Europe
+#        0:19:32.13 AMT* NST*       Amsterdam, Netherlands Summer (1835-1937)
+#        1:00       BST             British Standard (1968-1971)
+#        1:00       CET  CEST CEMT  Central Europe
+#        1:00:14    SET             Swedish (1879-1899)
+#        1:36:34    RMT* LST*       Riga, Latvian Summer (1880-1926)*
+#        2:00       EET  EEST       Eastern Europe
+#        3:00       MSK  MSD  MDST* Moscow
 
 # From Peter Ilieve (1994-12-04),
 # The original six [EU members]: Belgium, France, (West) Germany, Italy,
@@ -498,7 +495,7 @@ Link	Europe/London	Europe/Isle_of_Man
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Europe/Dublin	-0:25:00 -	LMT	1880 Aug  2
-			-0:25:21 -	DMT	1916 May 21  2:00
+			-0:25:21 -	DMT	1916 May 21  2:00 # Dublin MT
 			-0:25:21 1:00	IST	1916 Oct  1  2:00s
 			 0:00	GB-Eire	%s	1921 Dec  6 # independence
 			 0:00	GB-Eire	GMT/IST	1940 Feb 25  2:00
@@ -1087,16 +1084,16 @@ Rule	Thule	2007	max	-	Nov	Sun>=1	2:00	0	S
 #
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Danmarkshavn -1:14:40 -	LMT	1916 Jul 28
-			-3:00	-	WGT	1980 Apr  6  2:00
-			-3:00	EU	WG%sT	1996
+			-3:00	-	-03	1980 Apr  6  2:00
+			-3:00	EU	-03/-02	1996
 			0:00	-	GMT
 Zone America/Scoresbysund -1:27:52 -	LMT	1916 Jul 28 # Ittoqqortoormiit
-			-2:00	-	CGT	1980 Apr  6  2:00
-			-2:00	C-Eur	CG%sT	1981 Mar 29
-			-1:00	EU	EG%sT
+			-2:00	-	-02	1980 Apr  6  2:00
+			-2:00	C-Eur	-02/-01	1981 Mar 29
+			-1:00	EU	-01/+00
 Zone America/Godthab	-3:26:56 -	LMT	1916 Jul 28 # Nuuk
-			-3:00	-	WGT	1980 Apr  6  2:00
-			-3:00	EU	WG%sT
+			-3:00	-	-03	1980 Apr  6  2:00
+			-3:00	EU	-03/-02
 Zone America/Thule	-4:35:08 -	LMT	1916 Jul 28 # Pituffik air base
 			-4:00	Thule	A%sT
 
@@ -1511,7 +1508,7 @@ 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	-1:28	-	LMT	1908
-			-1:00	Iceland	IS%sT	1968 Apr  7  1:00s
+			-1:00	Iceland	-01/+00	1968 Apr  7  1:00s
 			 0:00	-	GMT
 
 # Italy
@@ -1975,7 +1972,7 @@ Rule	Neth	1945	only	-	Sep	16	2:00s	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Europe/Amsterdam	0:19:32 -	LMT	1835
 			0:19:32	Neth	%s	1937 Jul  1
-			0:20	Neth	NE%sT	1940 May 16  0:00 # Dutch Time
+			0:20	Neth +0020/+0120 1940 May 16  0:00
 			1:00	C-Eur	CE%sT	1945 Apr  2  2:00
 			1:00	Neth	CE%sT	1977
 			1:00	EU	CE%sT
@@ -2192,16 +2189,34 @@ Zone	Europe/Lisbon	-0:36:45 -	LMT	1884
 			 0:00	W-Eur	WE%sT	1992 Sep 27  1:00s
 			 1:00	EU	CE%sT	1996 Mar 31  1:00u
 			 0:00	EU	WE%sT
+# This Zone can be simplified once we assume zic %z.
 Zone Atlantic/Azores	-1:42:40 -	LMT	1884        # Ponta Delgada
 			-1:54:32 -	HMT	1912 Jan  1 # Horta Mean Time
-			-2:00	Port	AZO%sT	1966 Apr  3  2:00  # Azores Time
-			-1:00	Port	AZO%sT	1983 Sep 25  1:00s
-			-1:00	W-Eur	AZO%sT	1992 Sep 27  1:00s
+			-2:00	Port	-02/-01	1942 Apr 25 22:00s
+			-2:00	Port	+00	1942 Aug 15 22:00s
+			-2:00	Port	-02/-01	1943 Apr 17 22:00s
+			-2:00	Port	+00	1943 Aug 28 22:00s
+			-2:00	Port	-02/-01	1944 Apr 22 22:00s
+			-2:00	Port	+00	1944 Aug 26 22:00s
+			-2:00	Port	-02/-01	1945 Apr 21 22:00s
+			-2:00	Port	+00	1945 Aug 25 22:00s
+			-2:00	Port	-02/-01	1966 Apr  3  2:00
+			-1:00	Port	-01/+00	1983 Sep 25  1:00s
+			-1:00	W-Eur	-01/+00	1992 Sep 27  1:00s
 			 0:00	EU	WE%sT	1993 Mar 28  1:00u
-			-1:00	EU	AZO%sT
+			-1:00	EU	-01/+00
+# This Zone can be simplified once we assume zic %z.
 Zone Atlantic/Madeira	-1:07:36 -	LMT	1884        # Funchal
 			-1:07:36 -	FMT	1912 Jan  1 # Funchal Mean Time
-			-1:00	Port	MAD%sT	1966 Apr  3  2:00 # Madeira Time
+			-1:00	Port	-01/+00	1942 Apr 25 22:00s
+			-1:00	Port	+01	1942 Aug 15 22:00s
+			-1:00	Port	-01/+00	1943 Apr 17 22:00s
+			-1:00	Port	+01	1943 Aug 28 22:00s
+			-1:00	Port	-01/+00	1944 Apr 22 22:00s
+			-1:00	Port	+01	1944 Aug 26 22:00s
+			-1:00	Port	-01/+00	1945 Apr 21 22:00s
+			-1:00	Port	+01	1945 Aug 25 22:00s
+			-1:00	Port	-01/+00	1966 Apr  3  2:00
 			 0:00	Port	WE%sT	1983 Sep 25  1:00s
 			 0:00	EU	WE%sT
 
@@ -2559,10 +2574,8 @@ Zone Europe/Moscow	 2:30:17 -	LMT	1880
 			 3:00	-	MSK
 
 
-# From Tim Parenti (2014-07-03):
-# Europe/Simferopol covers...
-# **	****	Crimea, Republic of
-# **	****	Sevastopol
+# From Paul Eggert (2016-12-06):
+# Europe/Simferopol covers Crimea.
 
 Zone Europe/Simferopol	 2:16:24 -	LMT	1880
 			 2:16	-	SMT	1924 May  2 # Simferopol Mean T
@@ -3255,46 +3268,77 @@ Link Europe/Prague Europe/Bratislava
 # See Europe/Belgrade.
 
 # Spain
+#
+# From Paul Eggert (2016-12-14):
+#
+# The source for Europe/Madrid before 2013 is:
+# Planesas P. La hora oficial en España y sus cambios.
+# Anuario del Observatorio Astronómico de Madrid (2013, in Spanish).
+# http://astronomia.ign.es/rknowsys-theme/images/webAstro/paginas/documentos/Anuario/lahoraoficialenespana.pdf
+# As this source says that historical time in the Canaries is obscure,
+# and it does not discuss Ceuta, stick with Shanks for now for that data.
+#
+# In the 1918 and 1919 fallback transitions in Spain, the clock for
+# the hour-longer day officially kept going after midnight, so that
+# the repeated instances of that day's 00:00 hour were 24 hours apart,
+# with a fallback transition from the second occurrence of 00:59... to
+# the next day's 00:00.  Our data format cannot represent this
+# directly, and instead repeats the first hour of the next day, with a
+# fallback transition from the next day's 00:59... to 00:00.
+
+# From Michael Deckers (2016-12-15):
+# The Royal Decree of 1900-06-26 quoted by Planesas, online at
+# https://www.boe.es/datos/pdfs/BOE//1900/209/A00383-00384.pdf
+# says in its article 5 (my translation):
+# These dispositions will enter into force beginning with the
+# instant at which, according to the time indicated in article 1,
+# the 1st day of January of 1901 will begin.
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-# For 1917-1919 Whitman gives Apr Sat>=1 - Oct Sat>=1;
-# go with Shanks & Pottenger.
-Rule	Spain	1917	only	-	May	 5	23:00s	1:00	S
-Rule	Spain	1917	1919	-	Oct	 6	23:00s	0	-
-Rule	Spain	1918	only	-	Apr	15	23:00s	1:00	S
-Rule	Spain	1919	only	-	Apr	 5	23:00s	1:00	S
-# Whitman gives 1921 Feb 28 - Oct 14; go with Shanks & Pottenger.
-Rule	Spain	1924	only	-	Apr	16	23:00s	1:00	S
-# Whitman gives 1924 Oct 14; go with Shanks & Pottenger.
-Rule	Spain	1924	only	-	Oct	 4	23:00s	0	-
-Rule	Spain	1926	only	-	Apr	17	23:00s	1:00	S
-# Whitman says no DST in 1929; go with Shanks & Pottenger.
-Rule	Spain	1926	1929	-	Oct	Sat>=1	23:00s	0	-
-Rule	Spain	1927	only	-	Apr	 9	23:00s	1:00	S
-Rule	Spain	1928	only	-	Apr	14	23:00s	1:00	S
-Rule	Spain	1929	only	-	Apr	20	23:00s	1:00	S
-# Whitman gives 1937 Jun 16, 1938 Apr 16, 1940 Apr 13;
-# go with Shanks & Pottenger.
-Rule	Spain	1937	only	-	May	22	23:00s	1:00	S
-Rule	Spain	1937	1939	-	Oct	Sat>=1	23:00s	0	-
-Rule	Spain	1938	only	-	Mar	22	23:00s	1:00	S
-Rule	Spain	1939	only	-	Apr	15	23:00s	1:00	S
-Rule	Spain	1940	only	-	Mar	16	23:00s	1:00	S
-# Whitman says no DST 1942-1945; go with Shanks & Pottenger.
-Rule	Spain	1942	only	-	May	 2	22:00s	2:00	M # Midsummer
-Rule	Spain	1942	only	-	Sep	 1	22:00s	1:00	S
-Rule	Spain	1943	1946	-	Apr	Sat>=13	22:00s	2:00	M
-Rule	Spain	1943	only	-	Oct	 3	22:00s	1:00	S
-Rule	Spain	1944	only	-	Oct	10	22:00s	1:00	S
-Rule	Spain	1945	only	-	Sep	30	 1:00	1:00	S
-Rule	Spain	1946	only	-	Sep	30	 0:00	0	-
+Rule	Spain	1918	only	-	Apr	15	23:00	1:00	S
+Rule	Spain	1918	1919	-	Oct	 6	24:00s	0	-
+Rule	Spain	1919	only	-	Apr	 6	23:00	1:00	S
+Rule	Spain	1924	only	-	Apr	16	23:00	1:00	S
+Rule	Spain	1924	only	-	Oct	 4	24:00s	0	-
+Rule	Spain	1926	only	-	Apr	17	23:00	1:00	S
+Rule	Spain	1926	1929	-	Oct	Sat>=1	24:00s	0	-
+Rule	Spain	1927	only	-	Apr	 9	23:00	1:00	S
+Rule	Spain	1928	only	-	Apr	15	 0:00	1:00	S
+Rule	Spain	1929	only	-	Apr	20	23:00	1:00	S
+# Republican Spain during the civil war; it controlled Madrid until 1939-03-28.
+Rule	Spain	1937	only	-	Jun	16	23:00	1:00	S
+Rule	Spain	1937	only	-	Oct	 2	24:00s	0	-
+Rule	Spain	1938	only	-	Apr	 2	23:00	1:00	S
+Rule	Spain	1938	only	-	Apr	30	23:00	2:00	M
+Rule	Spain	1938	only	-	Oct	 2	24:00	1:00	S
+# The following rules are for unified Spain again.
+#
+# Planesas does not say what happened in Madrid between its fall on
+# 1939-03-28 and the Nationalist spring-forward transition on
+# 1939-04-15.  For lack of better info, assume Madrid's clocks did not
+# change during that period.
+#
+# The first rule is commented out, as it is redundant for Republican Spain.
+#Rule	Spain	1939	only	-	Apr	15	23:00	1:00	S
+Rule	Spain	1939	only	-	Oct	 7	24:00s	0	-
+Rule	Spain	1942	only	-	May	 2	23:00	1:00	S
+Rule	Spain	1942	only	-	Sep	 1	 1:00	0	-
+Rule	Spain	1943	1946	-	Apr	Sat>=13	23:00	1:00	S
+Rule	Spain	1943	1944	-	Oct	Sun>=1	 1:00	0	-
+Rule	Spain	1945	1946	-	Sep	lastSun	 1:00	0	-
 Rule	Spain	1949	only	-	Apr	30	23:00	1:00	S
-Rule	Spain	1949	only	-	Sep	30	 1:00	0	-
-Rule	Spain	1974	1975	-	Apr	Sat>=13	23:00	1:00	S
+Rule	Spain	1949	only	-	Oct	 2	 1:00	0	-
+Rule	Spain	1974	1975	-	Apr	Sat>=12	23:00	1:00	S
 Rule	Spain	1974	1975	-	Oct	Sun>=1	 1:00	0	-
 Rule	Spain	1976	only	-	Mar	27	23:00	1:00	S
 Rule	Spain	1976	1977	-	Sep	lastSun	 1:00	0	-
-Rule	Spain	1977	1978	-	Apr	 2	23:00	1:00	S
-Rule	Spain	1978	only	-	Oct	 1	 1:00	0	-
+Rule	Spain	1977	only	-	Apr	 2	23:00	1:00	S
+Rule	Spain	1978	only	-	Apr	 2	 2:00s	1:00	S
+Rule	Spain	1978	only	-	Oct	 1	 2:00s	0	-
+# Nationalist Spain during the civil war
+#Rule NatSpain	1937	only	-	May	22	23:00	1:00	S
+#Rule NatSpain	1937	1938	-	Oct	Sat>=1	24:00s	0	-
+#Rule NatSpain	1938	only	-	Mar	26	23:00	1:00	S
 # The following rules are copied from Morocco from 1967 through 1978.
 Rule SpainAfrica 1967	only	-	Jun	 3	12:00	1:00	S
 Rule SpainAfrica 1967	only	-	Oct	 1	 0:00	0	-
@@ -3306,11 +3350,11 @@ Rule SpainAfrica 1977	only	-	Sep	28	 0:00	0	-
 Rule SpainAfrica 1978	only	-	Jun	 1	 0:00	1:00	S
 Rule SpainAfrica 1978	only	-	Aug	 4	 0:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Europe/Madrid	-0:14:44 -	LMT	1901 Jan  1  0:00s
-			 0:00	Spain	WE%sT	1946 Sep 30
+Zone	Europe/Madrid	-0:14:44 -	LMT	1900 Dec 31 23:45:16
+			 0:00	Spain	WE%sT	1940 Mar 16 23:00
 			 1:00	Spain	CE%sT	1979
 			 1:00	EU	CE%sT
-Zone	Africa/Ceuta	-0:21:16 -	LMT	1901
+Zone	Africa/Ceuta	-0:21:16 -	LMT	1900 Dec 31 23:38:44
 			 0:00	-	WET	1918 May  6 23:00
 			 0:00	1:00	WEST	1918 Oct  7 23:00
 			 0:00	-	WET	1924
@@ -3319,7 +3363,7 @@ Zone	Africa/Ceuta	-0:21:16 -	LMT	1901
 			 1:00	-	CET	1986
 			 1:00	EU	CE%sT
 Zone	Atlantic/Canary	-1:01:36 -	LMT	1922 Mar # Las Palmas de Gran C.
-			-1:00	-	CANT	1946 Sep 30  1:00 # Canaries T
+			-1:00	-	-01	1946 Sep 30  1:00
 			 0:00	-	WET	1980 Apr  6  0:00s
 			 0:00	1:00	WEST	1980 Sep 28  1:00u
 			 0:00	EU	WE%sT
@@ -3732,7 +3776,7 @@ Zone Europe/Uzhgorod	1:29:12 -	LMT	1890 Oct
 # spelling, except omit the apostrophe as it is not allowed in
 # portable Posix file names.
 Zone Europe/Zaporozhye	2:20:40 -	LMT	1880
-			2:20	-	CUT	1924 May  2 # Central Ukraine T
+			2:20	-	+0220	1924 May  2
 			2:00	-	EET	1930 Jun 21
 			3:00	-	MSK	1941 Aug 25
 			1:00	C-Eur	CE%sT	1943 Oct 25

make/data/tzdata/leapseconds

@@ -81,5 +81,5 @@ Leap	2012	Jun	30	23:59:60	+	S
 Leap	2015	Jun	30	23:59:60	+	S
 Leap	2016	Dec	31	23:59:60	+	S
 
-#	Updated through IERS Bulletin C52
-#	File expires on:  28 June 2017
+#	Updated through IERS Bulletin C53
+#	File expires on:  28 December 2017

make/data/tzdata/northamerica

@@ -201,22 +201,6 @@ Zone	CST6CDT		 -6:00	US	C%sT
 Zone	MST7MDT		 -7:00	US	M%sT
 Zone	PST8PDT		 -8:00	US	P%sT
 
-# From Bob Devine (1988-01-28):
-# ...Alaska (and Hawaii) had the timezone names changed in 1967.
-#    old			 new
-#    Pacific Standard Time(PST)  -same-
-#    Yukon Standard Time(YST)    -same-
-#    Central Alaska S.T. (CAT)   Alaska-Hawaii St[an]dard Time (AHST)
-#    Nome Standard Time (NT)     Bering Standard Time (BST)
-#
-# ...Alaska's timezone lines were redrawn in 1983 to give only 2 tz.
-#    The YST zone now covers nearly all of the state, AHST just part
-#    of the Aleutian islands.   No DST.
-
-# From Paul Eggert (1995-12-19):
-# The tables below use 'NST', not 'NT', for Nome Standard Time.
-# I invented 'CAWT' for Central Alaska War Time.
-
 # From U. S. Naval Observatory (1989-01-19):
 # USA  EASTERN       5 H  BEHIND UTC    NEW YORK, WASHINGTON
 # USA  EASTERN       4 H  BEHIND UTC    APR 3 - OCT 30
@@ -273,6 +257,21 @@ Zone	PST8PDT		 -8:00	US	P%sT
 #	Samoa standard time
 # The law doesn't give abbreviations.
 #
+# From Paul Eggert (2016-12-19):
+# Here are URLs for the 1918 and 1966 legislation:
+# http://uscode.house.gov/statviewer.htm?volume=40&page=451
+# http://uscode.house.gov/statviewer.htm?volume=80&page=108
+# Although the 1918 names were officially "United States Standard
+# Eastern Time" and similarly for "Central", "Mountain", "Pacific",
+# and "Alaska", in practice "Standard" was placed just before "Time",
+# as codified in 1966.  In practice, Alaska time was abbreviated "AST"
+# before 1968.  Summarizing the 1967 name changes:
+#	1918 names			1967 names
+#  -08	Standard Pacific Time (PST)	Pacific standard time (PST)
+#  -09	(unofficial) Yukon (YST)	Yukon standard time (YST)
+#  -10	Standard Alaska Time (AST)	Alaska-Hawaii standard time (AHST)
+#  -11	(unofficial) Nome (NST)		Bering standard time (BST)
+#
 # From Paul Eggert (2000-01-08), following a heads-up from Rives McDow:
 # Public law 106-564 (2000-12-23) introduced ... "Chamorro Standard Time"
 # for time in Guam and the Northern Marianas.  See the file "australasia".
@@ -328,6 +327,15 @@ Zone	PST8PDT		 -8:00	US	P%sT
 # Roberts, city administrator in Phenix City. as saying "We are in the Central
 # time zone, but we do go by the Eastern time zone because so many people work
 # in Columbus."
+#
+# From Paul Eggert (2017-02-22):
+# Four cities are involved.  The two not mentioned above are Smiths Station
+# and Valley.  Barbara Brooks, Valley's assistant treasurer, heard it started
+# because West Point Pepperell textile mills were in Alabama while the
+# corporate office was in Georgia, and residents voted to keep Eastern
+# time even after the mills closed.  See: Kazek K. Did you know which
+# Alabama towns are in a different time zone?  al.com 2017-02-06.
+# http://www.al.com/living/index.ssf/2017/02/do_you_know_which_alabama_town.html
 
 # From Paul Eggert (2014-09-06):
 # Monthly Notices of the Royal Astronomical Society 44, 4 (1884-02-08), 208
@@ -505,7 +513,7 @@ Zone America/Los_Angeles -7:52:58 -	LMT	1883 Nov 18 12:07:02
 			-8:00	US	P%sT
 
 # Alaska
-# AK%sT is the modern abbreviation for -9:00 per USNO.
+# AK%sT is the modern abbreviation for -09 per USNO.
 #
 # From Paul Eggert (2001-05-30):
 # Howse writes that Alaska switched from the Julian to the Gregorian calendar,
@@ -611,10 +619,8 @@ Zone America/Yakutat	 14:41:05 -	LMT	1867 Oct 18
 			 -9:00	US	AK%sT
 Zone America/Anchorage	 14:00:24 -	LMT	1867 Oct 18
 			 -9:59:36 -	LMT	1900 Aug 20 12:00
-			-10:00	-	CAT	1942
-			-10:00	US	CAT/CAWT 1945 Aug 14 23:00u
-			-10:00	US	CAT/CAPT 1946 # Peace
-			-10:00	-	CAT	1967 Apr
+			-10:00	-	AST	1942
+			-10:00	US	A%sT	1967 Apr
 			-10:00	-	AHST	1969
 			-10:00	US	AH%sT	1983 Oct 30  2:00
 			 -9:00	US	Y%sT	1983 Nov 30
@@ -703,7 +709,6 @@ Zone Pacific/Honolulu	-10:31:26 -	LMT	1896 Jan 13 12:00
 			-10:30	1:00	HDT	1945 Sep 30  2:00
 			-10:30	-	HST	1947 Jun  8  2:00
 			-10:00	-	HST
-Link Pacific/Honolulu Pacific/Johnston
 
 # Now we turn to US areas that have diverged from the consensus since 1970.
 
@@ -1091,15 +1096,15 @@ Zone America/Menominee	-5:50:27 -	LMT	1885 Sep 18 12:00
 ################################################################################
 
 
-# From Paul Eggert (2014-10-31):
+# From Paul Eggert (2017-02-10):
 #
 # Unless otherwise specified, the source for data through 1990 is:
 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
 # San Diego: ACS Publications, Inc. (2003).
 # Unfortunately this book contains many errors and cites no sources.
 #
-# Gwillim Law writes that a good source
-# for recent time zone data is the International Air Transport
+# Many years ago Gwillim Law wrote that a good source
+# for time zone data was the International Air Transport
 # Association's Standard Schedules Information Manual (IATA SSIM),
 # published semiannually.  Law sent in several helpful summaries
 # of the IATA's data after 1990.  Except where otherwise noted,
@@ -2757,15 +2762,15 @@ Zone America/Barbados	-3:58:29 -	LMT	1924 # Bridgetown
 # Belize
 # Whitman entirely disagrees with Shanks; go with Shanks & Pottenger.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	Belize	1918	1942	-	Oct	Sun>=2	0:00	0:30	HD
-Rule	Belize	1919	1943	-	Feb	Sun>=9	0:00	0	S
-Rule	Belize	1973	only	-	Dec	 5	0:00	1:00	D
-Rule	Belize	1974	only	-	Feb	 9	0:00	0	S
-Rule	Belize	1982	only	-	Dec	18	0:00	1:00	D
-Rule	Belize	1983	only	-	Feb	12	0:00	0	S
+Rule	Belize	1918	1942	-	Oct	Sun>=2	0:00	0:30	-0530
+Rule	Belize	1919	1943	-	Feb	Sun>=9	0:00	0	CST
+Rule	Belize	1973	only	-	Dec	 5	0:00	1:00	CDT
+Rule	Belize	1974	only	-	Feb	 9	0:00	0	CST
+Rule	Belize	1982	only	-	Dec	18	0:00	1:00	CDT
+Rule	Belize	1983	only	-	Feb	12	0:00	0	CST
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Belize	-5:52:48 -	LMT	1912 Apr
-			-6:00	Belize	C%sT
+			-6:00	Belize	%s
 
 # Bermuda
 
@@ -3037,16 +3042,16 @@ Zone	America/Havana	-5:29:28 -	LMT	1890
 
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	DR	1966	only	-	Oct	30	0:00	1:00	D
-Rule	DR	1967	only	-	Feb	28	0:00	0	S
-Rule	DR	1969	1973	-	Oct	lastSun	0:00	0:30	HD
-Rule	DR	1970	only	-	Feb	21	0:00	0	S
-Rule	DR	1971	only	-	Jan	20	0:00	0	S
-Rule	DR	1972	1974	-	Jan	21	0:00	0	S
+Rule	DR	1966	only	-	Oct	30	0:00	1:00	EDT
+Rule	DR	1967	only	-	Feb	28	0:00	0	EST
+Rule	DR	1969	1973	-	Oct	lastSun	0:00	0:30	-0430
+Rule	DR	1970	only	-	Feb	21	0:00	0	EST
+Rule	DR	1971	only	-	Jan	20	0:00	0	EST
+Rule	DR	1972	1974	-	Jan	21	0:00	0	EST
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Santo_Domingo -4:39:36 -	LMT	1890
 			-4:40	-	SDMT	1933 Apr  1 12:00 # S. Dom. MT
-			-5:00	DR	E%sT	1974 Oct 27
+			-5:00	DR	%s	1974 Oct 27
 			-4:00	-	AST	2000 Oct 29  2:00
 			-5:00	US	E%sT	2000 Dec  3  1:00
 			-4:00	-	AST
@@ -3336,8 +3341,8 @@ Zone America/Puerto_Rico -4:24:25 -	LMT	1899 Mar 28 12:00 # San Juan
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Miquelon	-3:44:40 -	LMT	1911 May 15 # St Pierre
 			-4:00	-	AST	1980 May
-			-3:00	-	PMST	1987 # Pierre & Miquelon Time
-			-3:00	Canada	PM%sT
+			-3:00	-	-03	1987
+			-3:00	Canada	-03/-02
 
 # St Vincent and the Grenadines
 # See America/Port_of_Spain.

make/data/tzdata/zone.tab

@@ -165,6 +165,7 @@ 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
@@ -420,7 +421,6 @@ UA	+5026+03031	Europe/Kiev	Ukraine (most areas)
 UA	+4837+02218	Europe/Uzhgorod	Ruthenia
 UA	+4750+03510	Europe/Zaporozhye	Zaporozh'ye/Zaporizhia; Lugansk/Luhansk (east)
 UG	+0019+03225	Africa/Kampala
-UM	+1645-16931	Pacific/Johnston	Johnston Atoll
 UM	+2813-17722	Pacific/Midway	Midway Islands
 UM	+1917+16637	Pacific/Wake	Wake Island
 US	+404251-0740023	America/New_York	Eastern (most areas)

test/sun/util/calendar/zi/tzdata/VERSION

@@ -21,4 +21,4 @@
 # or visit www.oracle.com if you need additional information or have any
 # questions.
 #
-tzdata2016j
+tzdata2017a

test/sun/util/calendar/zi/tzdata/africa

@@ -29,15 +29,15 @@
 # tz@iana.org for general use in the future).  For more, please see
 # the file CONTRIBUTING in the tz distribution.
 
-# From Paul Eggert (2014-10-31):
+# From Paul Eggert (2017-02-20):
 #
 # Unless otherwise specified, the source for data through 1990 is:
 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
 # San Diego: ACS Publications, Inc. (2003).
 # Unfortunately this book contains many errors and cites no sources.
 #
-# Gwillim Law writes that a good source
-# for recent time zone data is the International Air Transport
+# Many years ago Gwillim Law wrote that a good source
+# for time zone data was the International Air Transport
 # Association's Standard Schedules Information Manual (IATA SSIM),
 # published semiannually.  Law sent in several helpful summaries
 # of the IATA's data after 1990.  Except where otherwise noted,
@@ -54,39 +54,33 @@
 # A reliable and entertaining source about time zones is
 # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
 #
+# European-style abbreviations are commonly used along the Mediterranean.
+# For sub-Saharan Africa abbreviations were less standardized.
 # Previous editions of this database used WAT, CAT, SAT, and EAT
-# for +0:00 through +3:00, respectively,
-# but Mark R V Murray reports that
-# 'SAST' is the official abbreviation for +2:00 in the country of South Africa,
-# 'CAT' is commonly used for +2:00 in countries north of South Africa, and
-# 'WAT' is probably the best name for +1:00, as the common phrase for
+# for UT +00 through +03, respectively,
+# but in 1997 Mark R V Murray reported that
+# 'SAST' is the official abbreviation for +02 in the country of South Africa,
+# 'CAT' is commonly used for +02 in countries north of South Africa, and
+# 'WAT' is probably the best name for +01, as the common phrase for
 # the area that includes Nigeria is "West Africa".
-# He has heard of "Western Sahara Time" for +0:00 but can find no reference.
-#
-# To make things confusing, 'WAT' seems to have been used for -1:00 long ago;
-# I'd guess that this was because people needed _some_ name for -1:00,
-# and at the time, far west Africa was the only major land area in -1:00.
-# This usage is now obsolete, as the last use of -1:00 on the African
-# mainland seems to have been 1976 in Western Sahara.
-#
-# To summarize, the following abbreviations seem to have some currency:
-#	-1:00	WAT	West Africa Time (no longer used)
-#	 0:00	GMT	Greenwich Mean Time
-#	 2:00	CAT	Central Africa Time
-#	 2:00	SAST	South Africa Standard Time
-# and Murray suggests the following abbreviation:
-#	 1:00	WAT	West Africa Time
-# I realize that this leads to 'WAT' being used for both -1:00 and 1:00
-# for times before 1976, but this is the best I can think of
-# until we get more information.
+#
+# To summarize, the following abbreviations seemed to have some currency:
+#	 +00	GMT	Greenwich Mean Time
+#	 +02	CAT	Central Africa Time
+#	 +02	SAST	South Africa Standard Time
+# and Murray suggested the following abbreviation:
+#	 +01	WAT	West Africa Time
+# Murray's suggestion seems to have caught on in news reports and the like.
+# I vaguely recall 'WAT' also being used for -01 in the past but
+# cannot now come up with solid citations.
 #
 # I invented the following abbreviations; corrections are welcome!
-#	 2:00	WAST	West Africa Summer Time
-#	 2:30	BEAT	British East Africa Time (no longer used)
-#	 2:45	BEAUT	British East Africa Unified Time (no longer used)
-#	 3:00	CAST	Central Africa Summer Time (no longer used)
-#	 3:00	SAST	South Africa Summer Time (no longer used)
-#	 3:00	EAT	East Africa Time
+#	 +02	WAST	West Africa Summer Time
+#	 +03	CAST	Central Africa Summer Time (no longer used)
+#	 +03	SAST	South Africa Summer Time (no longer used)
+#	 +03	EAT	East Africa Time
+# 'EAT' also seems to have caught on; the others are rare but are paired
+# with better-attested non-DST abbreviations.
 
 # Algeria
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
@@ -144,17 +138,17 @@ Zone	Africa/Algiers	0:12:12 -	LMT	1891 Mar 15  0:01
 
 # Cape Verde / Cabo Verde
 #
-# Shanks gives 1907 for the transition to CVT.
+# Shanks gives 1907 for the transition to +02.
 # Perhaps the 1911-05-26 Portuguese decree
-# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
+# https://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
 # merely made it official?
 #
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Atlantic/Cape_Verde -1:34:04 -	LMT	1907        # Praia
-			-2:00	-	CVT	1942 Sep
-			-2:00	1:00	CVST	1945 Oct 15
-			-2:00	-	CVT	1975 Nov 25  2:00
-			-1:00	-	CVT
+			-2:00	-	-02	1942 Sep
+			-2:00	1:00	-01	1945 Oct 15
+			-2:00	-	-02	1975 Nov 25  2:00
+			-1:00	-	-01
 
 # Central African Republic
 # See Africa/Lagos.
@@ -411,7 +405,7 @@ Rule	Ghana	1920	1942	-	Sep	 1	0:00	0:20	GHST
 Rule	Ghana	1920	1942	-	Dec	31	0:00	0	GMT
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Accra	-0:00:52 -	LMT	1918
-			 0:00	Ghana	%s
+			 0:00	Ghana	GMT/+0020
 
 # Guinea
 # See Africa/Abidjan.
@@ -420,20 +414,20 @@ Zone	Africa/Accra	-0:00:52 -	LMT	1918
 #
 # Shanks gives 1911-05-26 for the transition to WAT,
 # evidently confusing the date of the Portuguese decree
-# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
+# https://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
 # with the date that it took effect, namely 1912-01-01.
 #
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Bissau	-1:02:20 -	LMT	1912 Jan  1
-			-1:00	-	WAT	1975
+			-1:00	-	-01	1975
 			 0:00	-	GMT
 
 # Kenya
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Nairobi	2:27:16	-	LMT	1928 Jul
 			3:00	-	EAT	1930
-			2:30	-	BEAT	1940
-			2:45	-	BEAUT	1960
+			2:30	-	+0230	1940
+			2:45	-	+0245	1960
 			3:00	-	EAT
 Link Africa/Nairobi Africa/Addis_Ababa	 # Ethiopia
 Link Africa/Nairobi Africa/Asmara	 # Eritrea
@@ -460,7 +454,7 @@ Link Africa/Nairobi Indian/Mayotte
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Monrovia	-0:43:08 -	LMT	1882
 			-0:43:08 -	MMT	1919 Mar # Monrovia Mean Time
-			-0:44:30 -	LRT	1972 May # Liberia Time
+			-0:44:30 -	-004430	1972 May
 			 0:00	-	GMT
 
 ###############################################################################
@@ -619,7 +613,7 @@ Rule Mauritius	2008	only	-	Oct	lastSun	2:00	1:00	S
 Rule Mauritius	2009	only	-	Mar	lastSun	2:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Indian/Mauritius	3:50:00 -	LMT	1907 # Port Louis
-			4:00 Mauritius	MU%sT	# Mauritius Time
+			4:00 Mauritius	+04/+05
 # Agalega Is, Rodriguez
 # no information; probably like Indian/Mauritius
 
@@ -938,14 +932,14 @@ Zone Africa/Casablanca	-0:30:20 -	LMT	1913 Oct 26
 # since most of it was then controlled by Morocco.
 
 Zone Africa/El_Aaiun	-0:52:48 -	LMT	1934 Jan # El Aaiún
-			-1:00	-	WAT	1976 Apr 14
+			-1:00	-	-01	1976 Apr 14
 			 0:00	Morocco	WE%sT
 
 # Mozambique
 #
 # Shanks gives 1903-03-01 for the transition to CAT.
 # Perhaps the 1911-05-26 Portuguese decree
-# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
+# https://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
 # merely made it official?
 #
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -972,16 +966,19 @@ Link Africa/Maputo Africa/Lusaka	# Zambia
 # the country are close to 40 minutes earlier in sunrise than the rest
 # of the country.
 #
-# From Paul Eggert (2007-03-31):
-# Apparently the Caprivi Strip informally observes Botswana time, but
-# we have no details.  In the meantime people there can use Africa/Gaborone.
+# From Paul Eggert (2017-02-22):
+# Although the Zambezi Region (formerly known as Caprivi) informally
+# observes Botswana time, we have no details about historical practice.
+# In the meantime people there can use Africa/Gaborone.
+# See: Immanuel S. The Namibian. 2017-02-23.
+# http://www.namibian.com.na/51480/read/Time-change-divides-lawmakers
 
 # RULE	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Namibia	1994	max	-	Sep	Sun>=1	2:00	1:00	S
 Rule	Namibia	1995	max	-	Apr	Sun>=1	2:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Windhoek	1:08:24 -	LMT	1892 Feb 8
-			1:30	-	SWAT	1903 Mar    # SW Africa Time
+			1:30	-	+0130	1903 Mar
 			2:00	-	SAST	1942 Sep 20  2:00
 			2:00	1:00	SAST	1943 Mar 21  2:00
 			2:00	-	SAST	1990 Mar 21 # independence
@@ -1008,7 +1005,7 @@ Link Africa/Lagos Africa/Porto-Novo  # Benin
 # Réunion
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Indian/Reunion	3:41:52 -	LMT	1911 Jun # Saint-Denis
-			4:00	-	RET	# Réunion Time
+			4:00	-	+04
 #
 # Crozet Islands also observes Réunion time; see the 'antarctica' file.
 #
@@ -1043,7 +1040,7 @@ Zone	Indian/Reunion	3:41:52 -	LMT	1911 Jun # Saint-Denis
 # Seychelles
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Indian/Mahe	3:41:48 -	LMT	1906 Jun # Victoria
-			4:00	-	SCT	# Seychelles Time
+			4:00	-	+04
 # From Paul Eggert (2001-05-30):
 # Aldabra, Farquhar, and Desroches, originally dependencies of the
 # Seychelles, were transferred to the British Indian Ocean Territory

test/sun/util/calendar/zi/tzdata/antarctica

@@ -133,7 +133,8 @@ 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

test/sun/util/calendar/zi/tzdata/australasia

@@ -67,8 +67,8 @@ Zone Australia/Perth	 7:43:24 -	LMT	1895 Dec
 			 8:00	Aus	AW%sT	1943 Jul
 			 8:00	AW	AW%sT
 Zone Australia/Eucla	 8:35:28 -	LMT	1895 Dec
-			 8:45	Aus	ACW%sT	1943 Jul
-			 8:45	AW	ACW%sT
+			 8:45	Aus +0845/+0945	1943 Jul
+			 8:45	AW  +0845/+0945
 
 # Queensland
 #
@@ -235,7 +235,8 @@ Rule	LH	2008	max	-	Apr	Sun>=1	2:00	0	S
 Rule	LH	2008	max	-	Oct	Sun>=1	2:00	0:30	D
 Zone Australia/Lord_Howe 10:36:20 -	LMT	1895 Feb
 			10:00	-	AEST	1981 Mar
-			10:30	LH	LH%sT
+			10:30	LH	+1030/+1130 1985 Jul
+			10:30	LH	+1030/+11
 
 # Australian miscellany
 #
@@ -273,19 +274,19 @@ Zone Antarctica/Macquarie 0	-	-00	1899 Nov
 			0	-	-00	1948 Mar 25
 			10:00	Aus	AE%sT	1967
 			10:00	AT	AE%sT	2010 Apr  4  3:00
-			11:00	-	MIST	# Macquarie I Standard Time
+			11:00	-	+11
 
 # Christmas
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Indian/Christmas	7:02:52 -	LMT	1895 Feb
-			7:00	-	CXT	# Christmas Island Time
+			7:00	-	+07
 
 # Cocos (Keeling) Is
 # These islands were ruled by the Ross family from about 1830 to 1978.
 # We don't know when standard time was introduced; for now, we guess 1900.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Indian/Cocos	6:27:40	-	LMT	1900
-			6:30	-	CCT	# Cocos Islands Time
+			6:30	-	+0630
 
 
 # Fiji
@@ -398,16 +399,16 @@ Rule	Fiji	2014	max	-	Nov	Sun>=1	2:00	1:00	S
 Rule	Fiji	2015	max	-	Jan	Sun>=15	3:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Fiji	11:55:44 -	LMT	1915 Oct 26 # Suva
-			12:00	Fiji	FJ%sT	# Fiji Time
+			12:00	Fiji	+12/+13
 
 # French Polynesia
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Gambier	 -8:59:48 -	LMT	1912 Oct # Rikitea
-			 -9:00	-	GAMT	# Gambier Time
+			 -9:00	-	-09
 Zone	Pacific/Marquesas -9:18:00 -	LMT	1912 Oct
-			 -9:30	-	MART	# Marquesas Time
+			 -9:30	-	-0930
 Zone	Pacific/Tahiti	 -9:58:16 -	LMT	1912 Oct # Papeete
-			-10:00	-	TAHT	# Tahiti Time
+			-10:00	-	-10
 # Clipperton (near North America) is administered from French Polynesia;
 # it is uninhabited.
 
@@ -422,15 +423,15 @@ Link Pacific/Guam Pacific/Saipan # N Mariana Is
 # Kiribati
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Tarawa	 11:32:04 -	LMT	1901 # Bairiki
-			 12:00	-	GILT	# Gilbert Is Time
+			 12:00	-	+12
 Zone Pacific/Enderbury	-11:24:20 -	LMT	1901
-			-12:00	-	PHOT	1979 Oct # Phoenix Is Time
-			-11:00	-	PHOT	1995
-			 13:00	-	PHOT
+			-12:00	-	-12	1979 Oct
+			-11:00	-	-11	1995
+			 13:00	-	+13
 Zone Pacific/Kiritimati	-10:29:20 -	LMT	1901
-			-10:40	-	LINT	1979 Oct # Line Is Time
-			-10:00	-	LINT	1995
-			 14:00	-	LINT
+			-10:40	-	-1040	1979 Oct
+			-10:00	-	-10	1995
+			 14:00	-	+14
 
 # N Mariana Is
 # See Pacific/Guam.
@@ -438,31 +439,31 @@ Zone Pacific/Kiritimati	-10:29:20 -	LMT	1901
 # Marshall Is
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Majuro	11:24:48 -	LMT	1901
-			11:00	-	MHT	1969 Oct # Marshall Islands Time
-			12:00	-	MHT
+			11:00	-	+11	1969 Oct
+			12:00	-	+12
 Zone Pacific/Kwajalein	11:09:20 -	LMT	1901
-			11:00	-	MHT	1969 Oct
-			-12:00	-	KWAT	1993 Aug 20 # Kwajalein Time
-			12:00	-	MHT
+			11:00	-	+11	1969 Oct
+			-12:00	-	-12	1993 Aug 20
+			12:00	-	+12
 
 # Micronesia
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Chuuk	10:07:08 -	LMT	1901
-			10:00	-	CHUT	# Chuuk Time
+			10:00	-	+10
 Zone Pacific/Pohnpei	10:32:52 -	LMT	1901 # Kolonia
-			11:00	-	PONT	# Pohnpei Time
+			11:00	-	+11
 Zone Pacific/Kosrae	10:51:56 -	LMT	1901
-			11:00	-	KOST	1969 Oct # Kosrae Time
-			12:00	-	KOST	1999
-			11:00	-	KOST
+			11:00	-	+11	1969 Oct
+			12:00	-	+12	1999
+			11:00	-	+11
 
 # Nauru
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Nauru	11:07:40 -	LMT	1921 Jan 15 # Uaobe
-			11:30	-	NRT	1942 Mar 15 # Nauru Time
-			9:00	-	JST	1944 Aug 15
-			11:30	-	NRT	1979 May
-			12:00	-	NRT
+			11:30	-	+1130	1942 Mar 15
+			9:00	-	+09	1944 Aug 15
+			11:30	-	+1130	1979 May
+			12:00	-	+12
 
 # New Caledonia
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
@@ -473,7 +474,7 @@ Rule	NC	1996	only	-	Dec	 1	2:00s	1:00	S
 Rule	NC	1997	only	-	Mar	 2	2:00s	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Noumea	11:05:48 -	LMT	1912 Jan 13 # Nouméa
-			11:00	NC	NC%sT
+			11:00	NC	+11/+12
 
 
 ###############################################################################
@@ -514,8 +515,8 @@ Zone Pacific/Auckland	11:39:04 -	LMT	1868 Nov  2
 			11:30	NZ	NZ%sT	1946 Jan  1
 			12:00	NZ	NZ%sT
 Zone Pacific/Chatham	12:13:48 -	LMT	1868 Nov  2
-			12:15	-	CHAST	1946 Jan  1
-			12:45	Chatham	CHA%sT
+			12:15	-	+1215	1946 Jan  1
+			12:45	Chatham	+1245/+1345
 
 Link Pacific/Auckland Antarctica/McMurdo
 
@@ -537,8 +538,8 @@ Rule	Cook	1979	1991	-	Mar	Sun>=1	0:00	0	-
 Rule	Cook	1979	1990	-	Oct	lastSun	0:00	0:30	HS
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Rarotonga	-10:39:04 -	LMT	1901        # Avarua
-			-10:30	-	CKT	1978 Nov 12 # Cook Is Time
-			-10:00	Cook	CK%sT
+			-10:30	-	-1030	1978 Nov 12
+			-10:00	Cook	-10/-0930
 
 ###############################################################################
 
@@ -546,29 +547,29 @@ Zone Pacific/Rarotonga	-10:39:04 -	LMT	1901        # Avarua
 # Niue
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Niue	-11:19:40 -	LMT	1901        # Alofi
-			-11:20	-	NUT	1951        # Niue Time
-			-11:30	-	NUT	1978 Oct  1
-			-11:00	-	NUT
+			-11:20	-	-1120	1951
+			-11:30	-	-1130	1978 Oct  1
+			-11:00	-	-11
 
 # Norfolk
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Norfolk	11:11:52 -	LMT	1901 # Kingston
-			11:12	-	NMT	1951 # Norfolk Mean Time
-			11:30	-	NFT	1974 Oct 27 02:00 # Norfolk T.
-			11:30	1:00	NFST	1975 Mar  2 02:00
-			11:30	-	NFT	2015 Oct  4 02:00
-			11:00	-	NFT
+			11:12	-	+1112	1951
+			11:30	-	+1130	1974 Oct 27 02:00
+			11:30	1:00	+1230	1975 Mar  2 02:00
+			11:30	-	+1130	2015 Oct  4 02:00
+			11:00	-	+11
 
 # Palau (Belau)
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Palau	8:57:56 -	LMT	1901 # Koror
-			9:00	-	PWT	# Palau Time
+			9:00	-	+09
 
 # Papua New Guinea
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Port_Moresby 9:48:40 -	LMT	1880
 			9:48:32	-	PMMT	1895 # Port Moresby Mean Time
-			10:00	-	PGT	# Papua New Guinea Time
+			10:00	-	+10
 #
 # From Paul Eggert (2014-10-13):
 # Base the Bougainville entry on the Arawa-Kieta region, which appears to have
@@ -583,28 +584,26 @@ Zone Pacific/Port_Moresby 9:48:40 -	LMT	1880
 # and seem to have controlled it until their 1945-08-21 surrender.
 #
 # The Autonomous Region of Bougainville switched from UT +10 to +11
-# on 2014-12-28 at 02:00.  They call +11 "Bougainville Standard Time";
-# abbreviate this as BST.  See:
+# on 2014-12-28 at 02:00.  They call +11 "Bougainville Standard Time".
+# See:
 # http://www.bougainville24.com/bougainville-issues/bougainville-gets-own-timezone/
 #
 Zone Pacific/Bougainville 10:22:16 -	LMT	1880
 			 9:48:32 -	PMMT	1895
-			10:00	-	PGT	1942 Jul
-			 9:00	-	JST	1945 Aug 21
-			10:00	-	PGT	2014 Dec 28  2:00
-			11:00	-	BST
+			10:00	-	+10	1942 Jul
+			 9:00	-	+09	1945 Aug 21
+			10:00	-	+10	2014 Dec 28  2:00
+			11:00	-	+11
 
 # Pitcairn
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Pitcairn	-8:40:20 -	LMT	1901        # Adamstown
-			-8:30	-	PNT	1998 Apr 27  0:00
-			-8:00	-	PST	# Pitcairn Standard Time
+			-8:30	-	-0830	1998 Apr 27  0:00
+			-8:00	-	-08
 
 # American Samoa
 Zone Pacific/Pago_Pago	 12:37:12 -	LMT	1879 Jul  5
 			-11:22:48 -	LMT	1911
-			-11:00	-	NST	1967 Apr    # N=Nome
-			-11:00	-	BST	1983 Nov 30 # B=Bering
 			-11:00	-	SST	            # S=Samoa
 Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands
 
@@ -685,17 +684,17 @@ Rule	WS	2012	max	-	Sep	lastSun	3:00	1	D
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Apia	 12:33:04 -	LMT	1879 Jul  5
 			-11:26:56 -	LMT	1911
-			-11:30	-	WSST	1950
-			-11:00	WS	S%sT	2011 Dec 29 24:00 # S=Samoa
-			 13:00	WS	WS%sT
+			-11:30	-	-1130	1950
+			-11:00	WS	-11/-10	2011 Dec 29 24:00
+			 13:00	WS	+13/+14
 
 # Solomon Is
 # excludes Bougainville, for which see Papua New Guinea
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Guadalcanal 10:39:48 -	LMT	1912 Oct # Honiara
-			11:00	-	SBT	# Solomon Is Time
+			11:00	-	+11
 
-# Tokelau Is
+# Tokelau
 #
 # From Gwillim Law (2011-12-29)
 # A correspondent informed me that Tokelau, like Samoa, will be skipping
@@ -716,8 +715,8 @@ Zone Pacific/Guadalcanal 10:39:48 -	LMT	1912 Oct # Honiara
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Fakaofo	-11:24:56 -	LMT	1901
-			-11:00	-	TKT	2011 Dec 30 # Tokelau Time
-			13:00	-	TKT
+			-11:00	-	-11	2011 Dec 30
+			13:00	-	+13
 
 # Tonga
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
@@ -736,7 +735,7 @@ Zone Pacific/Tongatapu	12:19:20 -	LMT	1901
 # Tuvalu
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Funafuti	11:56:52 -	LMT	1901
-			12:00	-	TVT	# Tuvalu Time
+			12:00	-	+12
 
 
 # US minor outlying islands
@@ -760,10 +759,11 @@ Zone Pacific/Funafuti	11:56:52 -	LMT	1901
 
 # Johnston
 #
-# From Paul Eggert (2014-03-11):
+# From Paul Eggert (2017-02-10):
 # Sometimes Johnston kept Hawaii time, and sometimes it was an hour behind.
 # Details are uncertain.  We have no data for Johnston after 1970, so
-# treat it like Hawaii for now.
+# treat it like Hawaii for now.  Since Johnston is now uninhabited,
+# its link to Pacific/Honolulu is in the 'backward' file.
 #
 # In his memoirs of June 6th to October 4, 1945
 # <http://www.315bw.org/Herb_Bach.htm> (2005), Herbert C. Bach writes,
@@ -783,8 +783,6 @@ Zone Pacific/Funafuti	11:56:52 -	LMT	1901
 # See the table on page 4 where he lists GMT and local times for the tests; a
 # footnote for the JI tests reads that local time is "JI time = Hawaii Time
 # Minus One Hour".
-#
-# See 'northamerica' for Pacific/Johnston.
 
 # Kingman
 # uninhabited
@@ -798,7 +796,7 @@ Zone Pacific/Funafuti	11:56:52 -	LMT	1901
 # Wake
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Wake	11:06:28 -	LMT	1901
-			12:00	-	WAKT	# Wake Time
+			12:00	-	+12
 
 
 # Vanuatu
@@ -811,12 +809,12 @@ Rule	Vanuatu	1992	1993	-	Jan	Sun>=23	0:00	0	-
 Rule	Vanuatu	1992	only	-	Oct	Sun>=23	0:00	1:00	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Efate	11:13:16 -	LMT	1912 Jan 13 # Vila
-			11:00	Vanuatu	VU%sT	# Vanuatu Time
+			11:00	Vanuatu	+11/+12
 
 # Wallis and Futuna
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Wallis	12:15:20 -	LMT	1901
-			12:00	-	WFT	# Wallis & Futuna Time
+			12:00	-	+12
 
 ###############################################################################
 
@@ -827,15 +825,15 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # tz@iana.org for general use in the future).  For more, please see
 # the file CONTRIBUTING in the tz distribution.
 
-# From Paul Eggert (2014-10-31):
+# From Paul Eggert (2017-02-10):
 #
 # Unless otherwise specified, the source for data through 1990 is:
 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
 # San Diego: ACS Publications, Inc. (2003).
 # Unfortunately this book contains many errors and cites no sources.
 #
-# Gwillim Law writes that a good source
-# for recent time zone data is the International Air Transport
+# Many years ago Gwillim Law wrote that a good source
+# for time zone data was the International Air Transport
 # Association's Standard Schedules Information Manual (IATA SSIM),
 # published semiannually.  Law sent in several helpful summaries
 # of the IATA's data after 1990.  Except where otherwise noted,
@@ -852,28 +850,19 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # A reliable and entertaining source about time zones is
 # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
 #
-# I invented the abbreviations marked '*' in the following table;
-# the rest are from earlier versions of this file, or from other sources.
+# The following abbreviations are from other sources.
 # Corrections are welcome!
 #		std	dst
 #		LMT		Local Mean Time
 #	  8:00	AWST	AWDT	Western Australia
-#	  8:45	ACWST	ACWDT	Central Western Australia*
-#	  9:00	JST		Japan
 #	  9:30	ACST	ACDT	Central Australia
 #	 10:00	AEST	AEDT	Eastern Australia
+#	 10:00	GST		Guam through 2000
 #	 10:00	ChST		Chamorro
-#	 10:30	LHST	LHDT	Lord Howe*
-#	 11:00	BST		Bougainville*
 #	 11:30	NZMT	NZST	New Zealand through 1945
 #	 12:00	NZST	NZDT	New Zealand 1946-present
-#	 12:15	CHAST		Chatham through 1945*
-#	 12:45	CHAST	CHADT	Chatham 1946-present*
-#	 13:00	WSST	WSDT	(western) Samoa 2011-present*
-#	-11:30	WSST		Western Samoa through 1950*
 #	-11:00	SST		Samoa
 #	-10:00	HST		Hawaii
-#	- 8:00	PST		Pitcairn*
 #
 # See the 'northamerica' file for Hawaii.
 # See the 'southamerica' file for Easter I and the Galápagos Is.

test/sun/util/calendar/zi/tzdata/backward

@@ -119,6 +119,7 @@ Link	Pacific/Auckland	NZ
 Link	Pacific/Chatham		NZ-CHAT
 Link	America/Denver		Navajo
 Link	Asia/Shanghai		PRC
+Link	Pacific/Honolulu	Pacific/Johnston
 Link	Pacific/Pohnpei		Pacific/Ponape
 Link	Pacific/Pago_Pago	Pacific/Samoa
 Link	Pacific/Chuuk		Pacific/Truk

test/sun/util/calendar/zi/tzdata/europe

@@ -29,15 +29,15 @@
 # tz@iana.org for general use in the future).  For more, please see
 # the file CONTRIBUTING in the tz distribution.
 
-# From Paul Eggert (2014-10-31):
+# From Paul Eggert (2017-02-10):
 #
 # Unless otherwise specified, the source for data through 1990 is:
 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
 # San Diego: ACS Publications, Inc. (2003).
 # Unfortunately this book contains many errors and cites no sources.
 #
-# Gwillim Law writes that a good source
-# for recent time zone data is the International Air Transport
+# Many years ago Gwillim Law wrote that a good source
+# for time zone data was the International Air Transport
 # Association's Standard Schedules Information Manual (IATA SSIM),
 # published semiannually.  Law sent in several helpful summaries
 # of the IATA's data after 1990.  Except where otherwise noted,
@@ -79,26 +79,23 @@
 #	History of Summer Time
 #	<http://pcdsh01.on.br/HISTHV.htm>
 #	(1998-09-21, in Portuguese)
-
 #
 # I invented the abbreviations marked '*' in the following table;
-# the rest are from earlier versions of this file, or from other sources.
-# Corrections are welcome!
-#                   std dst  2dst
-#                   LMT           Local Mean Time
-#       -4:00       AST ADT       Atlantic
-#       -3:00       WGT WGST      Western Greenland*
-#       -1:00       EGT EGST      Eastern Greenland*
-#        0:00       GMT BST  BDST Greenwich, British Summer
-#        0:00       GMT IST       Greenwich, Irish Summer
-#        0:00       WET WEST WEMT Western Europe
-#        0:19:32.13 AMT NST       Amsterdam, Netherlands Summer (1835-1937)*
-#        0:20       NET NEST      Netherlands (1937-1940)*
-#        1:00       BST           British Standard (1968-1971)
-#        1:00       CET CEST CEMT Central Europe
-#        1:00:14    SET           Swedish (1879-1899)*
-#        2:00       EET EEST      Eastern Europe
-#        3:00       MSK MSD       Moscow
+# the rest are variants of the "xMT" pattern for a city's mean time,
+# or are from other sources.  Corrections are welcome!
+#                   std  dst  2dst
+#                   LMT             Local Mean Time
+#       -4:00       AST  ADT        Atlantic
+#        0:00       GMT  BST  BDST  Greenwich, British Summer
+#        0:00       GMT  IST        Greenwich, Irish Summer
+#        0:00       WET  WEST WEMT  Western Europe
+#        0:19:32.13 AMT* NST*       Amsterdam, Netherlands Summer (1835-1937)
+#        1:00       BST             British Standard (1968-1971)
+#        1:00       CET  CEST CEMT  Central Europe
+#        1:00:14    SET             Swedish (1879-1899)
+#        1:36:34    RMT* LST*       Riga, Latvian Summer (1880-1926)*
+#        2:00       EET  EEST       Eastern Europe
+#        3:00       MSK  MSD  MDST* Moscow
 
 # From Peter Ilieve (1994-12-04),
 # The original six [EU members]: Belgium, France, (West) Germany, Italy,
@@ -498,7 +495,7 @@ Link	Europe/London	Europe/Isle_of_Man
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Europe/Dublin	-0:25:00 -	LMT	1880 Aug  2
-			-0:25:21 -	DMT	1916 May 21  2:00
+			-0:25:21 -	DMT	1916 May 21  2:00 # Dublin MT
 			-0:25:21 1:00	IST	1916 Oct  1  2:00s
 			 0:00	GB-Eire	%s	1921 Dec  6 # independence
 			 0:00	GB-Eire	GMT/IST	1940 Feb 25  2:00
@@ -1087,16 +1084,16 @@ Rule	Thule	2007	max	-	Nov	Sun>=1	2:00	0	S
 #
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Danmarkshavn -1:14:40 -	LMT	1916 Jul 28
-			-3:00	-	WGT	1980 Apr  6  2:00
-			-3:00	EU	WG%sT	1996
+			-3:00	-	-03	1980 Apr  6  2:00
+			-3:00	EU	-03/-02	1996
 			0:00	-	GMT
 Zone America/Scoresbysund -1:27:52 -	LMT	1916 Jul 28 # Ittoqqortoormiit
-			-2:00	-	CGT	1980 Apr  6  2:00
-			-2:00	C-Eur	CG%sT	1981 Mar 29
-			-1:00	EU	EG%sT
+			-2:00	-	-02	1980 Apr  6  2:00
+			-2:00	C-Eur	-02/-01	1981 Mar 29
+			-1:00	EU	-01/+00
 Zone America/Godthab	-3:26:56 -	LMT	1916 Jul 28 # Nuuk
-			-3:00	-	WGT	1980 Apr  6  2:00
-			-3:00	EU	WG%sT
+			-3:00	-	-03	1980 Apr  6  2:00
+			-3:00	EU	-03/-02
 Zone America/Thule	-4:35:08 -	LMT	1916 Jul 28 # Pituffik air base
 			-4:00	Thule	A%sT
 
@@ -1511,7 +1508,7 @@ 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	-1:28	-	LMT	1908
-			-1:00	Iceland	IS%sT	1968 Apr  7  1:00s
+			-1:00	Iceland	-01/+00	1968 Apr  7  1:00s
 			 0:00	-	GMT
 
 # Italy
@@ -1975,7 +1972,7 @@ Rule	Neth	1945	only	-	Sep	16	2:00s	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Europe/Amsterdam	0:19:32 -	LMT	1835
 			0:19:32	Neth	%s	1937 Jul  1
-			0:20	Neth	NE%sT	1940 May 16  0:00 # Dutch Time
+			0:20	Neth +0020/+0120 1940 May 16  0:00
 			1:00	C-Eur	CE%sT	1945 Apr  2  2:00
 			1:00	Neth	CE%sT	1977
 			1:00	EU	CE%sT
@@ -2192,16 +2189,34 @@ Zone	Europe/Lisbon	-0:36:45 -	LMT	1884
 			 0:00	W-Eur	WE%sT	1992 Sep 27  1:00s
 			 1:00	EU	CE%sT	1996 Mar 31  1:00u
 			 0:00	EU	WE%sT
+# This Zone can be simplified once we assume zic %z.
 Zone Atlantic/Azores	-1:42:40 -	LMT	1884        # Ponta Delgada
 			-1:54:32 -	HMT	1912 Jan  1 # Horta Mean Time
-			-2:00	Port	AZO%sT	1966 Apr  3  2:00  # Azores Time
-			-1:00	Port	AZO%sT	1983 Sep 25  1:00s
-			-1:00	W-Eur	AZO%sT	1992 Sep 27  1:00s
+			-2:00	Port	-02/-01	1942 Apr 25 22:00s
+			-2:00	Port	+00	1942 Aug 15 22:00s
+			-2:00	Port	-02/-01	1943 Apr 17 22:00s
+			-2:00	Port	+00	1943 Aug 28 22:00s
+			-2:00	Port	-02/-01	1944 Apr 22 22:00s
+			-2:00	Port	+00	1944 Aug 26 22:00s
+			-2:00	Port	-02/-01	1945 Apr 21 22:00s
+			-2:00	Port	+00	1945 Aug 25 22:00s
+			-2:00	Port	-02/-01	1966 Apr  3  2:00
+			-1:00	Port	-01/+00	1983 Sep 25  1:00s
+			-1:00	W-Eur	-01/+00	1992 Sep 27  1:00s
 			 0:00	EU	WE%sT	1993 Mar 28  1:00u
-			-1:00	EU	AZO%sT
+			-1:00	EU	-01/+00
+# This Zone can be simplified once we assume zic %z.
 Zone Atlantic/Madeira	-1:07:36 -	LMT	1884        # Funchal
 			-1:07:36 -	FMT	1912 Jan  1 # Funchal Mean Time
-			-1:00	Port	MAD%sT	1966 Apr  3  2:00 # Madeira Time
+			-1:00	Port	-01/+00	1942 Apr 25 22:00s
+			-1:00	Port	+01	1942 Aug 15 22:00s
+			-1:00	Port	-01/+00	1943 Apr 17 22:00s
+			-1:00	Port	+01	1943 Aug 28 22:00s
+			-1:00	Port	-01/+00	1944 Apr 22 22:00s
+			-1:00	Port	+01	1944 Aug 26 22:00s
+			-1:00	Port	-01/+00	1945 Apr 21 22:00s
+			-1:00	Port	+01	1945 Aug 25 22:00s
+			-1:00	Port	-01/+00	1966 Apr  3  2:00
 			 0:00	Port	WE%sT	1983 Sep 25  1:00s
 			 0:00	EU	WE%sT
 
@@ -2559,10 +2574,8 @@ Zone Europe/Moscow	 2:30:17 -	LMT	1880
 			 3:00	-	MSK
 
 
-# From Tim Parenti (2014-07-03):
-# Europe/Simferopol covers...
-# **	****	Crimea, Republic of
-# **	****	Sevastopol
+# From Paul Eggert (2016-12-06):
+# Europe/Simferopol covers Crimea.
 
 Zone Europe/Simferopol	 2:16:24 -	LMT	1880
 			 2:16	-	SMT	1924 May  2 # Simferopol Mean T
@@ -3255,46 +3268,77 @@ Link Europe/Prague Europe/Bratislava
 # See Europe/Belgrade.
 
 # Spain
+#
+# From Paul Eggert (2016-12-14):
+#
+# The source for Europe/Madrid before 2013 is:
+# Planesas P. La hora oficial en España y sus cambios.
+# Anuario del Observatorio Astronómico de Madrid (2013, in Spanish).
+# http://astronomia.ign.es/rknowsys-theme/images/webAstro/paginas/documentos/Anuario/lahoraoficialenespana.pdf
+# As this source says that historical time in the Canaries is obscure,
+# and it does not discuss Ceuta, stick with Shanks for now for that data.
+#
+# In the 1918 and 1919 fallback transitions in Spain, the clock for
+# the hour-longer day officially kept going after midnight, so that
+# the repeated instances of that day's 00:00 hour were 24 hours apart,
+# with a fallback transition from the second occurrence of 00:59... to
+# the next day's 00:00.  Our data format cannot represent this
+# directly, and instead repeats the first hour of the next day, with a
+# fallback transition from the next day's 00:59... to 00:00.
+
+# From Michael Deckers (2016-12-15):
+# The Royal Decree of 1900-06-26 quoted by Planesas, online at
+# https://www.boe.es/datos/pdfs/BOE//1900/209/A00383-00384.pdf
+# says in its article 5 (my translation):
+# These dispositions will enter into force beginning with the
+# instant at which, according to the time indicated in article 1,
+# the 1st day of January of 1901 will begin.
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-# For 1917-1919 Whitman gives Apr Sat>=1 - Oct Sat>=1;
-# go with Shanks & Pottenger.
-Rule	Spain	1917	only	-	May	 5	23:00s	1:00	S
-Rule	Spain	1917	1919	-	Oct	 6	23:00s	0	-
-Rule	Spain	1918	only	-	Apr	15	23:00s	1:00	S
-Rule	Spain	1919	only	-	Apr	 5	23:00s	1:00	S
-# Whitman gives 1921 Feb 28 - Oct 14; go with Shanks & Pottenger.
-Rule	Spain	1924	only	-	Apr	16	23:00s	1:00	S
-# Whitman gives 1924 Oct 14; go with Shanks & Pottenger.
-Rule	Spain	1924	only	-	Oct	 4	23:00s	0	-
-Rule	Spain	1926	only	-	Apr	17	23:00s	1:00	S
-# Whitman says no DST in 1929; go with Shanks & Pottenger.
-Rule	Spain	1926	1929	-	Oct	Sat>=1	23:00s	0	-
-Rule	Spain	1927	only	-	Apr	 9	23:00s	1:00	S
-Rule	Spain	1928	only	-	Apr	14	23:00s	1:00	S
-Rule	Spain	1929	only	-	Apr	20	23:00s	1:00	S
-# Whitman gives 1937 Jun 16, 1938 Apr 16, 1940 Apr 13;
-# go with Shanks & Pottenger.
-Rule	Spain	1937	only	-	May	22	23:00s	1:00	S
-Rule	Spain	1937	1939	-	Oct	Sat>=1	23:00s	0	-
-Rule	Spain	1938	only	-	Mar	22	23:00s	1:00	S
-Rule	Spain	1939	only	-	Apr	15	23:00s	1:00	S
-Rule	Spain	1940	only	-	Mar	16	23:00s	1:00	S
-# Whitman says no DST 1942-1945; go with Shanks & Pottenger.
-Rule	Spain	1942	only	-	May	 2	22:00s	2:00	M # Midsummer
-Rule	Spain	1942	only	-	Sep	 1	22:00s	1:00	S
-Rule	Spain	1943	1946	-	Apr	Sat>=13	22:00s	2:00	M
-Rule	Spain	1943	only	-	Oct	 3	22:00s	1:00	S
-Rule	Spain	1944	only	-	Oct	10	22:00s	1:00	S
-Rule	Spain	1945	only	-	Sep	30	 1:00	1:00	S
-Rule	Spain	1946	only	-	Sep	30	 0:00	0	-
+Rule	Spain	1918	only	-	Apr	15	23:00	1:00	S
+Rule	Spain	1918	1919	-	Oct	 6	24:00s	0	-
+Rule	Spain	1919	only	-	Apr	 6	23:00	1:00	S
+Rule	Spain	1924	only	-	Apr	16	23:00	1:00	S
+Rule	Spain	1924	only	-	Oct	 4	24:00s	0	-
+Rule	Spain	1926	only	-	Apr	17	23:00	1:00	S
+Rule	Spain	1926	1929	-	Oct	Sat>=1	24:00s	0	-
+Rule	Spain	1927	only	-	Apr	 9	23:00	1:00	S
+Rule	Spain	1928	only	-	Apr	15	 0:00	1:00	S
+Rule	Spain	1929	only	-	Apr	20	23:00	1:00	S
+# Republican Spain during the civil war; it controlled Madrid until 1939-03-28.
+Rule	Spain	1937	only	-	Jun	16	23:00	1:00	S
+Rule	Spain	1937	only	-	Oct	 2	24:00s	0	-
+Rule	Spain	1938	only	-	Apr	 2	23:00	1:00	S
+Rule	Spain	1938	only	-	Apr	30	23:00	2:00	M
+Rule	Spain	1938	only	-	Oct	 2	24:00	1:00	S
+# The following rules are for unified Spain again.
+#
+# Planesas does not say what happened in Madrid between its fall on
+# 1939-03-28 and the Nationalist spring-forward transition on
+# 1939-04-15.  For lack of better info, assume Madrid's clocks did not
+# change during that period.
+#
+# The first rule is commented out, as it is redundant for Republican Spain.
+#Rule	Spain	1939	only	-	Apr	15	23:00	1:00	S
+Rule	Spain	1939	only	-	Oct	 7	24:00s	0	-
+Rule	Spain	1942	only	-	May	 2	23:00	1:00	S
+Rule	Spain	1942	only	-	Sep	 1	 1:00	0	-
+Rule	Spain	1943	1946	-	Apr	Sat>=13	23:00	1:00	S
+Rule	Spain	1943	1944	-	Oct	Sun>=1	 1:00	0	-
+Rule	Spain	1945	1946	-	Sep	lastSun	 1:00	0	-
 Rule	Spain	1949	only	-	Apr	30	23:00	1:00	S
-Rule	Spain	1949	only	-	Sep	30	 1:00	0	-
-Rule	Spain	1974	1975	-	Apr	Sat>=13	23:00	1:00	S
+Rule	Spain	1949	only	-	Oct	 2	 1:00	0	-
+Rule	Spain	1974	1975	-	Apr	Sat>=12	23:00	1:00	S
 Rule	Spain	1974	1975	-	Oct	Sun>=1	 1:00	0	-
 Rule	Spain	1976	only	-	Mar	27	23:00	1:00	S
 Rule	Spain	1976	1977	-	Sep	lastSun	 1:00	0	-
-Rule	Spain	1977	1978	-	Apr	 2	23:00	1:00	S
-Rule	Spain	1978	only	-	Oct	 1	 1:00	0	-
+Rule	Spain	1977	only	-	Apr	 2	23:00	1:00	S
+Rule	Spain	1978	only	-	Apr	 2	 2:00s	1:00	S
+Rule	Spain	1978	only	-	Oct	 1	 2:00s	0	-
+# Nationalist Spain during the civil war
+#Rule NatSpain	1937	only	-	May	22	23:00	1:00	S
+#Rule NatSpain	1937	1938	-	Oct	Sat>=1	24:00s	0	-
+#Rule NatSpain	1938	only	-	Mar	26	23:00	1:00	S
 # The following rules are copied from Morocco from 1967 through 1978.
 Rule SpainAfrica 1967	only	-	Jun	 3	12:00	1:00	S
 Rule SpainAfrica 1967	only	-	Oct	 1	 0:00	0	-
@@ -3306,11 +3350,11 @@ Rule SpainAfrica 1977	only	-	Sep	28	 0:00	0	-
 Rule SpainAfrica 1978	only	-	Jun	 1	 0:00	1:00	S
 Rule SpainAfrica 1978	only	-	Aug	 4	 0:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Europe/Madrid	-0:14:44 -	LMT	1901 Jan  1  0:00s
-			 0:00	Spain	WE%sT	1946 Sep 30
+Zone	Europe/Madrid	-0:14:44 -	LMT	1900 Dec 31 23:45:16
+			 0:00	Spain	WE%sT	1940 Mar 16 23:00
 			 1:00	Spain	CE%sT	1979
 			 1:00	EU	CE%sT
-Zone	Africa/Ceuta	-0:21:16 -	LMT	1901
+Zone	Africa/Ceuta	-0:21:16 -	LMT	1900 Dec 31 23:38:44
 			 0:00	-	WET	1918 May  6 23:00
 			 0:00	1:00	WEST	1918 Oct  7 23:00
 			 0:00	-	WET	1924
@@ -3319,7 +3363,7 @@ Zone	Africa/Ceuta	-0:21:16 -	LMT	1901
 			 1:00	-	CET	1986
 			 1:00	EU	CE%sT
 Zone	Atlantic/Canary	-1:01:36 -	LMT	1922 Mar # Las Palmas de Gran C.
-			-1:00	-	CANT	1946 Sep 30  1:00 # Canaries T
+			-1:00	-	-01	1946 Sep 30  1:00
 			 0:00	-	WET	1980 Apr  6  0:00s
 			 0:00	1:00	WEST	1980 Sep 28  1:00u
 			 0:00	EU	WE%sT
@@ -3732,7 +3776,7 @@ Zone Europe/Uzhgorod	1:29:12 -	LMT	1890 Oct
 # spelling, except omit the apostrophe as it is not allowed in
 # portable Posix file names.
 Zone Europe/Zaporozhye	2:20:40 -	LMT	1880
-			2:20	-	CUT	1924 May  2 # Central Ukraine T
+			2:20	-	+0220	1924 May  2
 			2:00	-	EET	1930 Jun 21
 			3:00	-	MSK	1941 Aug 25
 			1:00	C-Eur	CE%sT	1943 Oct 25

test/sun/util/calendar/zi/tzdata/leapseconds

@@ -81,5 +81,5 @@ Leap	2012	Jun	30	23:59:60	+	S
 Leap	2015	Jun	30	23:59:60	+	S
 Leap	2016	Dec	31	23:59:60	+	S
 
-#	Updated through IERS Bulletin C52
-#	File expires on:  28 June 2017
+#	Updated through IERS Bulletin C53
+#	File expires on:  28 December 2017

test/sun/util/calendar/zi/tzdata/northamerica

@@ -201,22 +201,6 @@ Zone	CST6CDT		 -6:00	US	C%sT
 Zone	MST7MDT		 -7:00	US	M%sT
 Zone	PST8PDT		 -8:00	US	P%sT
 
-# From Bob Devine (1988-01-28):
-# ...Alaska (and Hawaii) had the timezone names changed in 1967.
-#    old			 new
-#    Pacific Standard Time(PST)  -same-
-#    Yukon Standard Time(YST)    -same-
-#    Central Alaska S.T. (CAT)   Alaska-Hawaii St[an]dard Time (AHST)
-#    Nome Standard Time (NT)     Bering Standard Time (BST)
-#
-# ...Alaska's timezone lines were redrawn in 1983 to give only 2 tz.
-#    The YST zone now covers nearly all of the state, AHST just part
-#    of the Aleutian islands.   No DST.
-
-# From Paul Eggert (1995-12-19):
-# The tables below use 'NST', not 'NT', for Nome Standard Time.
-# I invented 'CAWT' for Central Alaska War Time.
-
 # From U. S. Naval Observatory (1989-01-19):
 # USA  EASTERN       5 H  BEHIND UTC    NEW YORK, WASHINGTON
 # USA  EASTERN       4 H  BEHIND UTC    APR 3 - OCT 30
@@ -273,6 +257,21 @@ Zone	PST8PDT		 -8:00	US	P%sT
 #	Samoa standard time
 # The law doesn't give abbreviations.
 #
+# From Paul Eggert (2016-12-19):
+# Here are URLs for the 1918 and 1966 legislation:
+# http://uscode.house.gov/statviewer.htm?volume=40&page=451
+# http://uscode.house.gov/statviewer.htm?volume=80&page=108
+# Although the 1918 names were officially "United States Standard
+# Eastern Time" and similarly for "Central", "Mountain", "Pacific",
+# and "Alaska", in practice "Standard" was placed just before "Time",
+# as codified in 1966.  In practice, Alaska time was abbreviated "AST"
+# before 1968.  Summarizing the 1967 name changes:
+#	1918 names			1967 names
+#  -08	Standard Pacific Time (PST)	Pacific standard time (PST)
+#  -09	(unofficial) Yukon (YST)	Yukon standard time (YST)
+#  -10	Standard Alaska Time (AST)	Alaska-Hawaii standard time (AHST)
+#  -11	(unofficial) Nome (NST)		Bering standard time (BST)
+#
 # From Paul Eggert (2000-01-08), following a heads-up from Rives McDow:
 # Public law 106-564 (2000-12-23) introduced ... "Chamorro Standard Time"
 # for time in Guam and the Northern Marianas.  See the file "australasia".
@@ -328,6 +327,15 @@ Zone	PST8PDT		 -8:00	US	P%sT
 # Roberts, city administrator in Phenix City. as saying "We are in the Central
 # time zone, but we do go by the Eastern time zone because so many people work
 # in Columbus."
+#
+# From Paul Eggert (2017-02-22):
+# Four cities are involved.  The two not mentioned above are Smiths Station
+# and Valley.  Barbara Brooks, Valley's assistant treasurer, heard it started
+# because West Point Pepperell textile mills were in Alabama while the
+# corporate office was in Georgia, and residents voted to keep Eastern
+# time even after the mills closed.  See: Kazek K. Did you know which
+# Alabama towns are in a different time zone?  al.com 2017-02-06.
+# http://www.al.com/living/index.ssf/2017/02/do_you_know_which_alabama_town.html
 
 # From Paul Eggert (2014-09-06):
 # Monthly Notices of the Royal Astronomical Society 44, 4 (1884-02-08), 208
@@ -505,7 +513,7 @@ Zone America/Los_Angeles -7:52:58 -	LMT	1883 Nov 18 12:07:02
 			-8:00	US	P%sT
 
 # Alaska
-# AK%sT is the modern abbreviation for -9:00 per USNO.
+# AK%sT is the modern abbreviation for -09 per USNO.
 #
 # From Paul Eggert (2001-05-30):
 # Howse writes that Alaska switched from the Julian to the Gregorian calendar,
@@ -611,10 +619,8 @@ Zone America/Yakutat	 14:41:05 -	LMT	1867 Oct 18
 			 -9:00	US	AK%sT
 Zone America/Anchorage	 14:00:24 -	LMT	1867 Oct 18
 			 -9:59:36 -	LMT	1900 Aug 20 12:00
-			-10:00	-	CAT	1942
-			-10:00	US	CAT/CAWT 1945 Aug 14 23:00u
-			-10:00	US	CAT/CAPT 1946 # Peace
-			-10:00	-	CAT	1967 Apr
+			-10:00	-	AST	1942
+			-10:00	US	A%sT	1967 Apr
 			-10:00	-	AHST	1969
 			-10:00	US	AH%sT	1983 Oct 30  2:00
 			 -9:00	US	Y%sT	1983 Nov 30
@@ -703,7 +709,6 @@ Zone Pacific/Honolulu	-10:31:26 -	LMT	1896 Jan 13 12:00
 			-10:30	1:00	HDT	1945 Sep 30  2:00
 			-10:30	-	HST	1947 Jun  8  2:00
 			-10:00	-	HST
-Link Pacific/Honolulu Pacific/Johnston
 
 # Now we turn to US areas that have diverged from the consensus since 1970.
 
@@ -1091,15 +1096,15 @@ Zone America/Menominee	-5:50:27 -	LMT	1885 Sep 18 12:00
 ################################################################################
 
 
-# From Paul Eggert (2014-10-31):
+# From Paul Eggert (2017-02-10):
 #
 # Unless otherwise specified, the source for data through 1990 is:
 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
 # San Diego: ACS Publications, Inc. (2003).
 # Unfortunately this book contains many errors and cites no sources.
 #
-# Gwillim Law writes that a good source
-# for recent time zone data is the International Air Transport
+# Many years ago Gwillim Law wrote that a good source
+# for time zone data was the International Air Transport
 # Association's Standard Schedules Information Manual (IATA SSIM),
 # published semiannually.  Law sent in several helpful summaries
 # of the IATA's data after 1990.  Except where otherwise noted,
@@ -2757,15 +2762,15 @@ Zone America/Barbados	-3:58:29 -	LMT	1924 # Bridgetown
 # Belize
 # Whitman entirely disagrees with Shanks; go with Shanks & Pottenger.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	Belize	1918	1942	-	Oct	Sun>=2	0:00	0:30	HD
-Rule	Belize	1919	1943	-	Feb	Sun>=9	0:00	0	S
-Rule	Belize	1973	only	-	Dec	 5	0:00	1:00	D
-Rule	Belize	1974	only	-	Feb	 9	0:00	0	S
-Rule	Belize	1982	only	-	Dec	18	0:00	1:00	D
-Rule	Belize	1983	only	-	Feb	12	0:00	0	S
+Rule	Belize	1918	1942	-	Oct	Sun>=2	0:00	0:30	-0530
+Rule	Belize	1919	1943	-	Feb	Sun>=9	0:00	0	CST
+Rule	Belize	1973	only	-	Dec	 5	0:00	1:00	CDT
+Rule	Belize	1974	only	-	Feb	 9	0:00	0	CST
+Rule	Belize	1982	only	-	Dec	18	0:00	1:00	CDT
+Rule	Belize	1983	only	-	Feb	12	0:00	0	CST
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Belize	-5:52:48 -	LMT	1912 Apr
-			-6:00	Belize	C%sT
+			-6:00	Belize	%s
 
 # Bermuda
 
@@ -3037,16 +3042,16 @@ Zone	America/Havana	-5:29:28 -	LMT	1890
 
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	DR	1966	only	-	Oct	30	0:00	1:00	D
-Rule	DR	1967	only	-	Feb	28	0:00	0	S
-Rule	DR	1969	1973	-	Oct	lastSun	0:00	0:30	HD
-Rule	DR	1970	only	-	Feb	21	0:00	0	S
-Rule	DR	1971	only	-	Jan	20	0:00	0	S
-Rule	DR	1972	1974	-	Jan	21	0:00	0	S
+Rule	DR	1966	only	-	Oct	30	0:00	1:00	EDT
+Rule	DR	1967	only	-	Feb	28	0:00	0	EST
+Rule	DR	1969	1973	-	Oct	lastSun	0:00	0:30	-0430
+Rule	DR	1970	only	-	Feb	21	0:00	0	EST
+Rule	DR	1971	only	-	Jan	20	0:00	0	EST
+Rule	DR	1972	1974	-	Jan	21	0:00	0	EST
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Santo_Domingo -4:39:36 -	LMT	1890
 			-4:40	-	SDMT	1933 Apr  1 12:00 # S. Dom. MT
-			-5:00	DR	E%sT	1974 Oct 27
+			-5:00	DR	%s	1974 Oct 27
 			-4:00	-	AST	2000 Oct 29  2:00
 			-5:00	US	E%sT	2000 Dec  3  1:00
 			-4:00	-	AST
@@ -3336,8 +3341,8 @@ Zone America/Puerto_Rico -4:24:25 -	LMT	1899 Mar 28 12:00 # San Juan
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Miquelon	-3:44:40 -	LMT	1911 May 15 # St Pierre
 			-4:00	-	AST	1980 May
-			-3:00	-	PMST	1987 # Pierre & Miquelon Time
-			-3:00	Canada	PM%sT
+			-3:00	-	-03	1987
+			-3:00	Canada	-03/-02
 
 # St Vincent and the Grenadines
 # See America/Port_of_Spain.

test/sun/util/calendar/zi/tzdata/zone.tab

@@ -165,6 +165,7 @@ 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
@@ -420,7 +421,6 @@ UA	+5026+03031	Europe/Kiev	Ukraine (most areas)
 UA	+4837+02218	Europe/Uzhgorod	Ruthenia
 UA	+4750+03510	Europe/Zaporozhye	Zaporozh'ye/Zaporizhia; Lugansk/Luhansk (east)
 UG	+0019+03225	Africa/Kampala
-UM	+1645-16931	Pacific/Johnston	Johnston Atoll
 UM	+2813-17722	Pacific/Midway	Midway Islands
 UM	+1917+16637	Pacific/Wake	Wake Island
 US	+404251-0740023	America/New_York	Eastern (most areas)