Updated timezone database from Arthur Olson.vendor/tzdata/tzdata2001d

PR:		conf/31851

10 files changed, 685 insertions, 166 deletions

diff --git a/share/zoneinfo/africa b/share/zoneinfo/africa
index 61258bff697e..e8223f78f56d 100644
--- a/share/zoneinfo/africa
+++ b/share/zoneinfo/africa
@@ -1,4 +1,4 @@
-# @(#)africa	7.34
+# @(#)africa	7.36
 
 # This data is by no means authoritative; if you think you know better,
 # go ahead and edit the file (and please send any changes to
@@ -10,7 +10,7 @@
 # Thomas G. Shanks, The International Atlas (5th edition),
 # San Diego: ACS Publications, Inc. (1999).
 #
-# Gwillim Law <Gwil_Law@bridge-point.com> writes that a good source
+# Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
 # Association's Standard Schedules Information Manual (IATA SSIM),
 # published semiannually.  Law sent in several helpful summaries
@@ -55,7 +55,7 @@
 # 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)
+#	 2:44:45 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
@@ -101,7 +101,7 @@ Zone	Africa/Algiers	0:12:12 -	LMT	1891 Mar 15 0:01
 # Angola
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Luanda	0:52:56	-	LMT	1892
-			0:52:04	-	LMT	1911 May 26 # Luanda Mean Time?
+			0:52:04	-	AOT	1911 May 26 # Angola Time
 			1:00	-	WAT
 
 # Benin
@@ -276,7 +276,7 @@ Zone	Africa/Bissau	-1:02:20 -	LMT	1911 May 26
 Zone	Africa/Nairobi	2:27:16	-	LMT	1928 Jul
 			3:00	-	EAT	1930
 			2:30	-	BEAT	1940
-			2:45	-	BEAUT	1960
+			2:44:45	-	BEAUT	1960
 			3:00	-	EAT
 
 # Lesotho
@@ -287,9 +287,9 @@ Zone	Africa/Maseru	1:50:00 -	LMT	1903 Mar
 			2:00	-	SAST
 
 # Liberia
-# From Paul Eggert <eggert@twinsun.com> (1993-11-18):
+# From Paul Eggert <eggert@twinsun.com> (2001-07-17):
 # In 1972 Liberia was the last country to switch
-# from a UTC offset that was not a multiple of 15 minutes.
+# from a UTC offset that was not a multiple of 15 or 20 minutes.
 # Howse reports that it was in honor of their president's birthday.
 # Shanks reports the date as May 1, whereas Howse reports Jan; go with Shanks.
 # For Liberia before 1972, Shanks reports -0:44, whereas Howse and Whitman
@@ -481,6 +481,12 @@ Zone	Africa/Dakar	-1:09:44 -	LMT	1912
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Indian/Mahe	3:41:48 -	LMT	1906 Jun	# Victoria
 			4:00	-	SCT	# Seychelles Time
+# From Paul Eggert (2001-05-30):
+# Aldabra, Farquhar, and Desroches, originally dependencies of the
+# Seychelles, were transferred to the British Indian Ocean Territory
+# in 1965 and returned to Seychelles control in 1976.  We don't know
+# whether this affected their time zone, so omit this for now.
+# Possibly the islands were uninhabited.
 
 # Sierra Leone
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
@@ -542,7 +548,7 @@ Zone	Africa/Mbabane	2:04:24 -	LMT	1903 Mar
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Africa/Dar_es_Salaam 2:37:08 -	LMT	1931
 			3:00	-	EAT	1948
-			2:45	-	BEAUT	1961
+			2:44:45	-	BEAUT	1961
 			3:00	-	EAT
 
 # Togo
@@ -585,7 +591,7 @@ Zone	Africa/Tunis	0:40:44 -	LMT	1881 May 12
 Zone	Africa/Kampala	2:09:40 -	LMT	1928 Jul
 			3:00	-	EAT	1930
 			2:30	-	BEAT	1948
-			2:45	-	BEAUT	1957
+			2:44:45	-	BEAUT	1957
 			3:00	-	EAT
 
 # Zambia
diff --git a/share/zoneinfo/antarctica b/share/zoneinfo/antarctica
index c98e528c1e4b..6f87e9f7d52c 100644
--- a/share/zoneinfo/antarctica
+++ b/share/zoneinfo/antarctica
@@ -1,4 +1,4 @@
-# @(#)antarctica	7.21
+# @(#)antarctica	7.22
 
 # From Paul Eggert (1999-11-15):
 # To keep things manageable, we list only locations occupied year-round; see
@@ -39,8 +39,8 @@ Rule	ArgAQ	1974	only	-	Jan	23	0:00	1:00	S
 Rule	ArgAQ	1974	only	-	May	 1	0:00	0	-
 Rule	ArgAQ	1974	1976	-	Oct	Sun<=7	0:00	1:00	S
 Rule	ArgAQ	1975	1977	-	Apr	Sun<=7	0:00	0	-
-Rule	ChileAQ	1969	1997	-	Oct	Sun>=9	0:00	1:00	S
-Rule	ChileAQ	1970	1998	-	Mar	Sun>=9	0:00	0	-
+Rule	ChileAQ	1966	1997	-	Oct	Sun>=9	0:00	1:00	S
+Rule	ChileAQ	1967	1998	-	Mar	Sun>=9	0:00	0	-
 Rule	ChileAQ	1998	only	-	Sep	27	0:00	1:00	S
 Rule	ChileAQ	1999	only	-	Apr	 4	0:00	0	-
 Rule	ChileAQ	1999	max	-	Oct	Sun>=9	0:00	1:00	S
@@ -92,11 +92,13 @@ Zone Antarctica/Mawson	0	-	zzz	1954 Feb 13
 # Brazil - year-round base
 # Ferraz, King George Island, since 1983/4
 
-# Chile - year-round bases
+# Chile - year-round bases and towns
 # Escudero, South Shetland Is, -621157-0585735, since 1994
-# Frei, King George Is, -6214-05848, since 1969
+# Frei, King George Island, -6214-05848, since 1969-03-07
 # O'Higgins, Antarctic Peninsula, -6319-05704, since 1948-02
 # Prat, -6230-05941
+# Villa Las Estrellas (a town), King George Island, since 1984-04-09
+# These locations have always used Santiago time; use TZ='America/Santiago'.
 
 # China - year-round bases
 # Great Wall, King George Island, since 1985-02-20
@@ -219,6 +221,15 @@ Rule	NZAQ	1990	max	-	Mar	Sun>=15	2:00s	0	S
 # of GMT). This is a time zone I think two hours east of Moscow. The
 # natural time zone is in between the two: 8 hours ahead of GMT.''
 #
+# From Paul Eggert (2001-05-04):
+# This seems to be hopelessly confusing, so I asked Lee Hotz about it
+# in person.  He said that some Antartic locations set their local
+# time so that noon is the warmest part of the day, and that this
+# changes during the year and does not necessarily correspond to mean
+# solar noon.  So the Vostok time might have been whatever the clocks
+# happened to be during their visit.  So we still don't really know what time
+# it is at Vostok.  But we'll guess UTC+6.
+#
 Zone Antarctica/Vostok	0	-	zzz	1957 Dec 16
 			6:00	-	VOST	# Vostok time
 
diff --git a/share/zoneinfo/asia b/share/zoneinfo/asia
index 2d7520aeb45c..0d58ca96e8e1 100644
--- a/share/zoneinfo/asia
+++ b/share/zoneinfo/asia
@@ -1,4 +1,4 @@
-# @(#)asia	7.63
+# @(#)asia	7.65
 
 # This data is by no means authoritative; if you think you know better,
 # go ahead and edit the file (and please send any changes to
@@ -10,7 +10,7 @@
 # Thomas G. Shanks, The International Atlas (5th edition),
 # San Diego: ACS Publications, Inc. (1999).
 #
-# Gwillim Law <Gwil_Law@bridge-point.com> writes that a good source
+# Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
 # Association's Standard Schedules Information Manual (IATA SSIM),
 # published semiannually.  Law sent in several helpful summaries
@@ -37,8 +37,11 @@
 #	4:00	GST	Gulf*
 #	5:30	IST	India
 #	7:00	ICT	Indochina*
+#	7:00	WIT	west Indonesia
+#	8:00	CIT	central Indonesia
 #	8:00	CST	China
 #	9:00	CJT	Central Japanese Time (1896/1937)*
+#	9:00	EIT	east Indonesia
 #	9:00	JST	Japan
 #	9:00	KST	Korea
 #	9:30	CST	(Australian) Central Standard Time
@@ -131,9 +134,11 @@ Zone	Asia/Thimphu	5:58:36 -	LMT	1947 Aug 15 # or Thimbu
 			6:00	-	BTT	# Bhutan Time
 
 # British Indian Ocean Territory
-# From Whitman:
+# Whitman and the 1995 CIA time zone map say 5:00, but the
+# 1997 and later maps say 6:00.  Assume the switch occurred in 1996.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Indian/Chagos	5:00	-	IOT	# BIOT Time
+Zone	Indian/Chagos	5:00	-	IOT	1996 # BIOT Time
+			6:00	-	IOT
 
 # Brunei
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -205,7 +210,7 @@ Zone	Asia/Harbin	8:26:44	-	LMT	1928 # or Haerbin
 Zone	Asia/Shanghai	8:05:52	-	LMT	1928
 			8:00	Shang	C%sT	1949
 			8:00	PRC	C%sT
-Zone	Asia/Chungking	7:06:20	-	LMT	1928 # or Chongqing
+Zone	Asia/Chongqing	7:06:20	-	LMT	1928 # or Chungking
 			7:00	-	CHUT	1980 May # Chungking Time
 			8:00	PRC	C%sT
 Zone	Asia/Urumqi	5:50:20	-	LMT	1928 # or Urumchi
@@ -258,7 +263,7 @@ Rule	Taiwan	1974	1975	-	Oct	1	0:00	0	S
 Rule	Taiwan	1980	only	-	Jun	30	0:00	1:00	D
 Rule	Taiwan	1980	only	-	Sep	30	0:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Asia/Taipei	8:06:00 -	LMT	1896
+Zone	Asia/Taipei	8:06:00 -	LMT	1896 # or Taibei or T'ai-pei
 			8:00	Taiwan	C%sT
 
 # Macao (Macau, Aomen)
@@ -357,7 +362,7 @@ Zone	Asia/Dili	8:22:20 -	LMT	1912
 			8:00	-	TPT	1942 Feb 21 23:00 # E Timor Time
 			9:00	-	JST	1945 Aug
 			9:00	-	TPT	1976 May  3
-			8:00	-	TPT	2000 Sep 17 00:00
+			8:00	-	CIT	2000 Sep 17 00:00
 			9:00	-	TPT
 
 # India
@@ -374,27 +379,43 @@ Zone	Asia/Calcutta	5:53:28 -	LMT	1880
 #	Nicobar Is
 
 # Indonesia
+#
+# From Gwillim Law (2001-05-28), overriding Shanks:
+# <http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime>
+# says that Indonesia's time zones changed on 1988-01-01.  Looking at some
+# time zone maps, I think that must refer to Western Borneo (Kalimantan Barat
+# and Kalimantan Tengah) switching from UTC+8 to UTC+7.
+#
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Asia/Jakarta	7:07:12 -	LMT	1867 Aug 10
 # Shanks says the next transition was at 1924 Jan 1 0:13,
 # but this must be a typo.
 			7:07:12	-	JMT	1923 Dec 31 23:47:12 # Jakarta
 			7:20	-	JAVT	1932 Nov	 # Java Time
-			7:30	-	JAVT	1942 Mar 23
+			7:30	-	WIT	1942 Mar 23
 			9:00	-	JST	1945 Aug
-			7:30	-	JAVT	1948 May
-			8:00	-	JAVT	1950 May
-			7:30	-	JAVT	1964
-			7:00	-	JAVT
+			7:30	-	WIT	1948 May
+			8:00	-	WIT	1950 May
+			7:30	-	WIT	1964
+			7:00	-	WIT
+Zone Asia/Pontianak	7:17:20	-	LMT	1908 May
+			7:17:20	-	PMT	1932 Nov    # Pontianak MT
+			7:30	-	WIT	1942 Jan 29
+			9:00	-	JST	1945 Aug
+			7:30	-	WIT	1948 May
+			8:00	-	WIT	1950 May
+			7:30	-	WIT	1964
+			8:00	-	CIT	1988 Jan  1
+			7:00	-	WIT
 Zone Asia/Ujung_Pandang 7:57:36 -	LMT	1920
 			7:57:36	-	MMT	1932 Nov    # Macassar MT
-			8:00	-	BORT	1942 Feb  9 # Borneo Time
+			8:00	-	CIT	1942 Feb  9
 			9:00	-	JST	1945 Aug
-			8:00	-	BORT
+			8:00	-	CIT
 Zone Asia/Jayapura	9:22:48 -	LMT	1932 Nov
-			9:00	-	JAYT	1944	    # Jayapura Time
+			9:00	-	EIT	1944
 			9:30	-	CST	1964
-			9:00	-	JAYT
+			9:00	-	EIT
 
 # Iran
 # From Paul Eggert (2000-06-12), following up a suggestion by Rich Wales:
@@ -911,9 +932,11 @@ Zone	Asia/Beirut	2:22:00 -	LMT	1880
 
 # Malaysia
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	NBorneo	1935	1941	-	Sep	14	0:00	0:20	TS
+Rule	NBorneo	1935	1941	-	Sep	14	0:00	0:20	TS # one-Third Summer
 Rule	NBorneo	1935	1941	-	Dec	14	0:00	0	-
+#
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
+# peninsular Malaysia
 Zone Asia/Kuala_Lumpur	6:46:48 -	LMT	1880
 			6:55:24	-	SMT	1905 Jun # Singapore Mean Time
 			7:00	-	MALT	1933	 # Malaya Time
@@ -922,6 +945,7 @@ Zone Asia/Kuala_Lumpur	6:46:48 -	LMT	1880
 			7:20	-	MALT	1950
 			7:30	-	MALT	1982 May
 			8:00	-	MYT	# Malaysia Time
+# Sabah & Sarawak
 Zone Asia/Kuching	7:21:20	-	LMT	1926 Mar
 			7:30	-	BORT	1933	# Borneo Time
 			8:00	NBorneo	BOR%sT	1942
@@ -960,38 +984,51 @@ Zone	Indian/Maldives	4:54:00 -	LMT	1880	# Male
 # Suhbaatar, and possibly Khentij.
 
 # From Paul Eggert (1999-12-15):
-# For now, we'll comment out the east zone (Choybalsan)
-# and use Shanks's and the IATA's data for the daylight-saving rules.
 # Naming and spelling is tricky in Mongolia.
 # We'll use Hovd (also spelled Chovd and Khovd) to represent the west zone;
 # the capital of the Hovd province is sometimes called Hovd, sometimes Dund-Us,
 # and sometimes Jirgalanta (with variant spellings), but the name Hovd
 # is good enough for our purposes.
 
+# From Rives McDow (2001-05-13):
+# In addition to Mongolia starting daylight savings as reported earlier
+# (adopted DST on 2001-04-27 02:00 local time, ending 2001-09-28),
+# there are three time zones.
+#
+# Provinces [at 7:00]: Bayan-ulgii, Uvs, Khovd, Zavkhan, Govi-Altai
+# Provinces [at 8:00]: Khovsgol, Bulgan, Arkhangai, Khentii, Tov,
+#	Bayankhongor, Ovorkhangai, Dundgovi, Dornogovi, Omnogovi
+# Provinces [at 9:00]: Dornod, Sukhbaatar
+#
+# [The province of Selenge is omitted from the above lists.]
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	Mongol	1981	1984	-	Apr	1	0:00	1:00	S
-Rule	Mongol	1981	1984	-	Oct	1	0:00	0	-
-Rule	Mongol	1985	1990	-	Mar	lastSun	2:00	1:00	S
-Rule	Mongol	1985	1990	-	Sep	lastSun	3:00	0	-
-Rule	Mongol	1991	1998	-	Mar	lastSun	0:00	1:00	S
-Rule	Mongol	1991	1995	-	Sep	lastSun	0:00	0	-
-# IATA SSIM (1996-09) says 1996-10-25; go with Shanks.
-Rule	Mongol	1996	only	-	Oct	lastSun	0:00	0	-
-Rule	Mongol	1997	1998	-	Sep	lastSun	0:00	0	-
+Rule	Mongol	1983	1984	-	Apr	1	0:00	1:00	S
+Rule	Mongol	1983	only	-	Oct	1	0:00	0	-
+# IATA SSIM says 1990s switches occurred at 00:00, but Shanks (1995) lists
+# them at 02:00s, and McDow says the 2001 switches also occurred at 02:00.
+# Also, IATA SSIM (1996-09) says 1996-10-25.  Go with Shanks through 1998.
+Rule	Mongol	1985	1998	-	Mar	lastSun	2:00s	1:00	S
+Rule	Mongol	1984	1998	-	Sep	lastSun	2:00s	0	-
 # IATA SSIM (1999-09) says Mongolia no longer observes DST.
+Rule	Mongol	2001	only	-	Apr	27	2:00s	1:00	S
+Rule	Mongol	2001	only	-	Sep	28	2:00s	0	-
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
+# Hovd, a.k.a. Chovd, Dund-Us, Dzhargalant, Khovd, Jirgalanta
 Zone	Asia/Hovd	6:06:36 -	LMT	1905 Aug
 			6:00	-	HOVT	1978	# Hovd Time
 			7:00	Mongol	HOV%sT
+# Ulaanbaatar, a.k.a. Ulan Bataar, Ulan Bator, Urga
 Zone	Asia/Ulaanbaatar 7:07:32 -	LMT	1905 Aug
 			7:00	-	ULAT	1978	# Ulaanbaatar Time
 			8:00	Mongol	ULA%sT
-# We're not sure about this entry yet, so we'll omit it for now.
-#Zone Asia/Choybalsan	7:38:00 -	LMT	1905 Aug
-#			8:00	-	CHOT	1978	# Choybalsan Time
-#			9:00	Mongol	CHO%sT	19??
-#			8:00	Mongol	ULA%sT
+# Choibalsan, a.k.a. Bajan Tuemen, Bajan Tumen, Chojbalsan,
+# Choybalsan, Sanbejse, Tchoibalsan
+Zone	Asia/Choibalsan	7:38:00 -	LMT	1905 Aug
+			7:00	-	ULAT	1978
+			8:00	-	ULAT	1983 Apr
+			9:00	Mongol	CHO%sT	# Choibalsan Time
 
 # Nepal
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
diff --git a/share/zoneinfo/australasia b/share/zoneinfo/australasia
index fe01a3e15c9b..c30ea37503b1 100644
--- a/share/zoneinfo/australasia
+++ b/share/zoneinfo/australasia
@@ -1,4 +1,4 @@
-# @(#)australasia	7.64
+# @(#)australasia	7.65
 # This file also includes Pacific islands.
 
 # Notes are at the end of this file
@@ -7,6 +7,8 @@
 
 # Australia
 
+# Please see the notes below for the controversy about "EST" versus "AEST" etc.
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Aus	1917	only	-	Jan	 1	0:01	1:00	-
 Rule	Aus	1917	only	-	Mar	25	2:00	0	-
@@ -359,7 +361,7 @@ Zone Pacific/Palau	8:57:56 -	LMT	1901		# Koror
 # Papua New Guinea
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Port_Moresby 9:48:40 -	LMT	1880
-			9:48:40	-	PMMT	1895	# Port Moresby Mean Time
+			9:48:32	-	PMMT	1895	# Port Moresby Mean Time
 			10:00	-	PGT		# Papua New Guinea Time
 
 # Pitcairn
@@ -399,6 +401,8 @@ Rule	Tonga	1999	only	-	Oct	 7	2:00s	1:00	S
 Rule	Tonga	2000	only	-	Mar	19	2:00s	0	-
 Rule	Tonga	2000	only	-	Nov	 4	2:00s	1:00	S
 Rule	Tonga	2001	only	-	Jan	27	2:00s	0	-
+Rule	Tonga	2001	only	-	Nov	25	2:00s	1:00	S
+Rule	Tonga	2002	only	-	Mar	 3	2:00s	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Tongatapu	12:19:20 -	LMT	1901
 			12:20	-	TOT	1941 # Tonga Time
@@ -473,7 +477,7 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # Thomas G. Shanks, The International Atlas (5th edition),
 # San Diego: ACS Publications, Inc. (1999).
 #
-# Gwillim Law <Gwil_Law@bridge-point.com> writes that a good source
+# Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
 # Association's Standard Schedules Information Manual (IATA SSIM),
 # published semiannually.  Law sent in several helpful summaries
@@ -535,12 +539,93 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # prefixed by the word `Australian' when referring to local times;
 # time announcements on that service, naturally enough, are made in UTC.
 
-# From Arthur David Olson (March 8 1992):
+# From Arthur David Olson (1992-03-08):
 # Given the above, what's chosen for year-round use is:
 #	CST	for any place operating at a GMTOFF of 9:30
 #	WST	for any place operating at a GMTOFF of 8:00
 #	EST	for any place operating at a GMTOFF of 10:00
 
+# From Paul Eggert (2001-04-05), summarizing a long discussion about "EST"
+# versus "AEST" etc.:
+#
+# I see the following points of dispute:
+#
+# * How important are unique time zone abbreviations?
+#
+#   Here I tend to agree with the point (most recently made by Chris
+#   Newman) that unique abbreviations should not be essential for proper
+#   operation of software.  We have other instances of ambiguity
+#   (e.g. "IST" denoting both "Israel Standard Time" and "Indian
+#   Standard Time"), and they are not likely to go away any time soon.
+#   In the old days, some software mistakenly relied on unique
+#   abbreviations, but this is becoming less true with time, and I don't
+#   think it's that important to cater to such software these days.
+#
+#   On the other hand, there is another motivation for unambiguous
+#   abbreviations: it cuts down on human confusion.  This is
+#   particularly true for Australia, where "EST" can mean one thing for
+#   time T and a different thing for time T plus 1 second.
+#
+# * Does the relevant legislation indicate which abbreviations should be used?
+#
+#   Here I tend to think that things are a mess, just as they are in
+#   many other countries.  We Americans are currently disagreeing about
+#   which abbreviation to use for the newly legislated Chamorro Standard
+#   Time, for example.
+#
+#   Personally, I would prefer to use common practice; I would like to
+#   refer to legislation only for examples of common practice, or as a
+#   tiebreaker.
+#
+# * Do Australians more often use "Eastern Daylight Time" or "Eastern
+#   Summer Time"?  Do they typically prefix the time zone names with
+#   the word "Australian"?
+#
+#   My own impression is that both "Daylight Time" and "Summer Time" are
+#   common and are widely understood, but that "Summer Time" is more
+#   popular; and that the leading "A" is also common but is omitted more
+#   often than not.  I just used AltaVista advanced search and got the
+#   following count of page hits:
+#
+#     1,103 "Eastern Summer Time" AND domain:au
+#       971 "Australian Eastern Summer Time" AND domain:au
+#       613 "Eastern Daylight Time" AND domain:au
+#       127 "Australian Eastern Daylight Time" AND domain:au
+#
+#   Here "Summer" seems quite a bit more popular than "Daylight",
+#   particularly when we know the time zone is Australian and not US,
+#   say.  The "Australian" prefix seems to be popular for Eastern Summer
+#   Time, but unpopular for Eastern Daylight Time.
+#
+#   For abbreviations, tools like AltaVista are less useful because of
+#   ambiguity.  Many hits are not really time zones, unfortunately, and
+#   many hits denote US time zones and not Australian ones.  But here
+#   are the hit counts anyway:
+#
+#     161,304 "EST" and domain:au
+#      25,156 "EDT" and domain:au
+#      18,263 "AEST" and domain:au
+#      10,416 "AEDT" and domain:au
+#
+#      14,538 "CST" and domain:au
+#       5,728 "CDT" and domain:au
+#         176 "ACST" and domain:au
+#          29 "ACDT" and domain:au
+#
+#       7,539 "WST" and domain:au
+#          68 "AWST" and domain:au
+#
+#   This data suggest that Australians tend to omit the "A" prefix in
+#   practice.  The situation for "ST" versus "DT" is less clear, given
+#   the ambiguities involved.
+#
+# * How do Australians feel about the abbreviations in the tz database?
+#
+#   If you just count Australians on this list, I count 2 in favor and 3
+#   against.  One of the "against" votes (David Keegel) counseled delay,
+#   saying that both AEST/AEDT and EST/EST are widely used and
+#   understood in Australia.
+
 # From Paul Eggert (1995-12-19):
 # Shanks reports 2:00 for all autumn changes in Australia and New Zealand.
 # Mark Prior <mrp@itd.adelaide.edu.au> writes that his newspaper
@@ -756,6 +841,28 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # #   The state of VICTORIA.. [ Courtesy of Vic. Dept of Premier + Cabinet ]
 # #						[ Nov 1990 ]
 
+# From Scott Harrington (2001-08-29):
+# On KQED's "City Arts and Lectures" program last night I heard an
+# interesting story about daylight savings time.  Dr. John Heilbron was
+# discussing his book "The Sun in the Church: Cathedrals as Solar
+# Observatories"[1], and in particular the Shrine of Remembrance[2] located
+# in Melbourne, Australia.
+#
+# Apparently the shrine's main purpose is a beam of sunlight which
+# illuminates a special spot on the floor at the 11th hour of the 11th day
+# of the 11th month (Remembrance Day) every year in memory of Australia's
+# fallen WWI soldiers.  And if you go there on Nov. 11, at 11am local time,
+# you will indeed see the sunbeam illuminate the special spot at the
+# expected time.
+#
+# However, that is only because of some special mirror contraption that had
+# to be employed, since due to daylight savings time, the true solar time of
+# the remembrance moment occurs one hour later (or earlier?).  Perhaps
+# someone with more information on this jury-rig can tell us more.
+#
+# [1] http://www.hup.harvard.edu/catalog/HEISUN.html
+# [2] http://www.shrine.org.au
+
 # New South Wales
 
 # From Arthur David Olson:
@@ -1120,6 +1227,12 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # From Rives McDow (2000-12-01):
 # Tonga is observing DST as of 2000-11-04 and will stop on 2001-01-27.
 
+# From Rives McDow (2001-07-17):
+# The Kingdom of Tonga will move to DST at 0200 local time on Sunday,
+# November 25, 2001 and revert back to standard time at 0300 local
+# time on Sunday, March 3, 2002.
+
+
 ###############################################################################
 
 # The International Date Line
diff --git a/share/zoneinfo/backward b/share/zoneinfo/backward
index 0bfa8724f4b9..45ade4dd3dea 100644
--- a/share/zoneinfo/backward
+++ b/share/zoneinfo/backward
@@ -1,4 +1,4 @@
-# @(#)backward	7.20
+# @(#)backward	7.21
 
 # This file provides links between current names for time zones
 # and their old names.  Many names changed in late 1993.
@@ -9,8 +9,9 @@ Link	America/Indianapolis	America/Fort_Wayne
 Link	America/Indiana/Knox	America/Knox_IN
 Link	America/Rio_Branco	America/Porto_Acre
 Link	America/St_Thomas	America/Virgin
-Link	Asia/Dhaka		Asia/Dacca
 Link	Asia/Ashgabat		Asia/Ashkhabad
+Link	Asia/Chongqing		Asia/Chungking
+Link	Asia/Dhaka		Asia/Dacca
 Link	Asia/Jerusalem		Asia/Tel_Aviv
 Link	Asia/Thimphu		Asia/Thimbu
 Link	Asia/Ulaanbaatar	Asia/Ulan_Bator
@@ -43,9 +44,9 @@ Link	Pacific/Easter		Chile/EasterIsland
 Link	America/Havana		Cuba
 Link	Africa/Cairo		Egypt
 Link	Europe/Dublin		Eire
+Link	Europe/Chisinau		Europe/Tiraspol
 Link	Europe/London		GB
 Link	Europe/London		GB-Eire
-Link	Europe/Chisinau		Europe/Tiraspol
 Link	Etc/GMT+0		GMT+0
 Link	Etc/GMT-0		GMT-0
 Link	Etc/GMT0		GMT0
@@ -65,9 +66,9 @@ Link	America/Denver		Navajo
 Link	Pacific/Auckland	NZ
 Link	Pacific/Chatham		NZ-CHAT
 Link	Pacific/Pago_Pago	Pacific/Samoa
-Link	Asia/Shanghai		PRC
 Link	Europe/Warsaw		Poland
 Link	Europe/Lisbon		Portugal
+Link	Asia/Shanghai		PRC
 Link	Asia/Taipei		ROC
 Link	Asia/Seoul		ROK
 Link	Asia/Singapore		Singapore
diff --git a/share/zoneinfo/europe b/share/zoneinfo/europe
index 43b4af392a6b..b87e31526de4 100644
--- a/share/zoneinfo/europe
+++ b/share/zoneinfo/europe
@@ -1,4 +1,4 @@
-# @(#)europe	7.78
+# @(#)europe	7.80
 
 # This data is by no means authoritative; if you think you know better,
 # go ahead and edit the file (and please send any changes to
@@ -9,7 +9,7 @@
 # Thomas G. Shanks, The International Atlas (5th edition),
 # San Diego: ACS Publications, Inc. (1999).
 #
-# Gwillim Law <Gwil_Law@bridge-point.com> writes that a good source
+# Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
 # Association's Standard Schedules Information Manual (IATA SSIM),
 # published semiannually.  Law sent in several helpful summaries
@@ -41,7 +41,10 @@
 #	 0:00	GMT BST Greenwich, British Summer
 #	 0:00	GMT IST Greenwich, Irish Summer
 #	 0:00	WET WEST Western Europe
+#	 0:19:32 AMT NST Amsterdam, Netherlands Summer (1835-1937)*
+#	 0:20	NET NEST Netherlands (1937-1940)*
 #	 1:00	CET CEST Central Europe
+#	 1:00:14 SET	 Swedish (1879-1899)*
 #	 2:00	EET EEST Eastern Europe
 #	 3:00	MSK MSD	Moscow
 #
@@ -203,7 +206,7 @@
 # (Lords Hansard 11 June 1997 columns 964 to 976)
 # </a>.
 
-# From Paul Eggert (2000-02-17):
+# From Paul Eggert (2001-07-18):
 #
 # For lack of other data, we'll follow Shanks for Eire in 1940-1948.
 #
@@ -231,6 +234,12 @@
 #
 #
 # Whitman says Dublin Mean Time was -0:25:21, which is more precise than Shanks.
+# Perhaps this was Dunsink Observatory Time, as Dunsink Observatory
+# (8 km NW of Dublin's center) seemingly was to Dublin as Greenwich was
+# to London.  For example:
+#
+#   "Timeball on the ballast office is down.  Dunsink time."
+#   -- James Joyce, Ulysses
 
 # From Paul Eggert (1999-03-28):
 # Clive Feather (<news:859845706.26043.0@office.demon.net>, 1997-03-31)
@@ -371,14 +380,14 @@ Zone	Europe/London	-0:01:15 -	LMT	1847 Dec  1
 			 0:00	GB-Eire	%s	1996
 			 0:00	EU	GMT/BST
 Zone	Europe/Belfast	-0:23:40 -	LMT	1880 Aug  2
-			-0:25:21 -	DMT	1916 May 21 2:00    # Dublin MT
+			-0:25:21 -	DMT	1916 May 21 2:00 # Dublin/Dunsink MT
 			-0:25:21 1:00	IST	1916 Oct  1 2:00s   # Irish Summer Time
 			 0:00	GB-Eire	%s	1968 Oct 27
 			 1:00	-	BST	1971 Oct 31 2:00u
 			 0:00	GB-Eire	%s	1996
 			 0:00	EU	GMT/BST
-Zone	Europe/Dublin	-0:25:21 -	LMT	1880 Aug  2
-			-0:25:21 -	DMT	1916 May 21 2:00    # Dublin MT
+Zone	Europe/Dublin	-0:25:00 -	LMT	1880 Aug  2
+			-0:25:21 -	DMT	1916 May 21 2:00
 			-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
@@ -725,12 +734,36 @@ Zone Atlantic/Faeroe	-0:27:04 -	LMT	1908 Jan 11	# Torshavn
 # used C-Eur rules after 1980, but IATA SSIM (1991/1996) says they use EU
 # rules since at least 1991.  Assume EU rules since 1980.
 
+# From Gwillin Law (2001-06-06), citing
+# <http://www.statkart.no/efs/efshefter/2001/efs5-2001.pdf> (2001-03-15),
+# and with translations corrected by Steffen Thorsen:
+#
+# Greenland has four local times, and the relation to UTC
+# is according to the following time line:
+#
+# The military zone near Thule	UTC-4
+# Standard Greenland time	UTC-3
+# Scoresbysund			UTC-1
+# Danmarkshavn			UTC
+#
+# In the military area near Thule and in Danmarkshavn DST will not be
+# introduced.
+
+# From Paul Eggert (2001-09-29):
+# The 1997 CIA map shows Danmarkshavn on GMT; the 1995 map as like Godthab.
+# For lack of better info, assume they were like Godthab before 1996.
+# The 2000 IATA shows Thule as observing DST, so assume they stopped in 2001.
+
 #
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	Thule	1993	max	-	Apr	Sun>=1	2:00	1:00	D
-Rule	Thule	1993	max	-	Oct	lastSun	2:00	0	S
+Rule	Thule	1993	2000	-	Apr	Sun>=1	2:00	1:00	D
+Rule	Thule	1993	2000	-	Oct	lastSun	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
+			0:00	-	GMT
 Zone America/Scoresbysund -1:29:00 -	LMT	1916 Jul 28 # Ittoqqortoormiit
 			-2:00	-	CGT	1980 Apr  6 2:00
 			-2:00	C-Eur	CG%sT	1981 Mar 29
@@ -1078,7 +1111,7 @@ Zone Atlantic/Reykjavik	-1:27:24 -	LMT	1837
 #
 # From Paul Eggert (2001-03-06):
 # Sicily and Sardinia each had their own time zones from 1866 to 1893,
-# called ``Palermo Time'' (+0053) and ``Cagliari Time'' (+0038).
+# called Palermo Time (+00:53:28) and Cagliari Time (+00:36:32).
 # During World War II, German-controlled Italy used German time.
 # But these events all occurred before the 1970 cutoff,
 # so record only the time in Rome.
@@ -1371,22 +1404,59 @@ Zone	Europe/Monaco	0:29:32 -	LMT	1891 Mar 15
 			1:00	EU	CE%sT
 
 # Netherlands
+
 # Howse writes that the Netherlands' railways used GMT between 1892 and 1940,
 # but for other purposes the Netherlands used Amsterdam mean time.
-# The data before 1945 is taken from
+
+# However, Robert H. van Gent writes (2001-04-01):
+# Howse's statement is only correct up to 1909. From 1909-05-01 (00:00:00
+# Amsterdam mean time) onwards, the whole of the Netherlands (including
+# the Dutch railways) was required by law to observe Amsterdam mean time
+# (19 minutes 32.13 seconds ahead of GMT). This had already been the
+# common practice (except for the railways) for many decades but it was
+# not until 1909 when the Dutch government finally defined this by law.
+# On 1937-07-01 this was changed to 20 minutes (exactly) ahead of GMT and
+# was generally known as Dutch Time ("Nederlandse Tijd").
+#
+# (2001-04-08):
+# 1892-05-01 was the date when the Dutch railways were by law required to
+# observe GMT while the remainder of the Netherlands adhered to the common
+# practice of following Amsterdam mean time.
+#
+# (2001-04-09):
+# In 1835 the authorities of the province of North Holland requested the
+# municipal authorities of the towns and cities in the province to observe
+# Amsterdam mean time but I do not know in how many cases this request was
+# actually followed.
+#
+# From 1852 onwards the Dutch telegraph offices were by law required to
+# observe Amsterdam mean time. As the time signals from the observatory of
+# Leiden were also distributed by the telegraph system, I assume that most
+# places linked up with the telegraph (and railway) system automatically
+# adopted Amsterdam mean time.
+#
+# Although the early Dutch railway companies initially observed a variety
+# of times, most of them had adopted Amsterdam mean time by 1858 but it
+# was not until 1866 when they were all required by law to observe
+# Amsterdam mean time.
+
+# The data before 1945 are taken from
 # <http://www.phys.uu.nl/~vgent/wettijd/wettijd.htm>.
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Neth	1916	only	-	May	 1	0:00	1:00	NST	# Netherlands Summer Time
 Rule	Neth	1916	only	-	Oct	 1	0:00	0	AMT	# Amsterdam Mean Time
 Rule	Neth	1917	only	-	Apr	16	2:00s	1:00	NST
 Rule	Neth	1917	only	-	Sep	17	2:00s	0	AMT
 Rule	Neth	1918	1921	-	Apr	Mon>=1	2:00s	1:00	NST
-Rule	Neth	1918	1921	-	Sep	lastSun	2:00s	0	AMT
+Rule	Neth	1918	1921	-	Sep	lastMon	2:00s	0	AMT
 Rule	Neth	1922	only	-	Mar	lastSun	2:00s	1:00	NST
 Rule	Neth	1922	1936	-	Oct	Sun>=2	2:00s	0	AMT
 Rule	Neth	1923	only	-	Jun	Fri>=1	2:00s	1:00	NST
 Rule	Neth	1924	only	-	Mar	lastSun	2:00s	1:00	NST
 Rule	Neth	1925	only	-	Jun	Fri>=1	2:00s	1:00	NST
+# From 1926 through 1939 DST began 05-15, except that it was delayed by a week
+# in years when 05-15 fell in the Pentecost weekend.
 Rule	Neth	1926	1931	-	May	15	2:00s	1:00	NST
 Rule	Neth	1932	only	-	May	22	2:00s	1:00	NST
 Rule	Neth	1933	1936	-	May	15	2:00s	1:00	NST
@@ -1396,10 +1466,13 @@ Rule	Neth	1937	1939	-	Oct	Sun>=2	2:00s	0	-
 Rule	Neth	1938	1939	-	May	15	2:00s	1:00	S
 Rule	Neth	1945	only	-	Apr	 2	2:00s	1:00	S
 Rule	Neth	1945	only	-	Sep	16	2:00s	0	-
+#
+# Amsterdam Mean Time was +00:19:32.13 exactly, but the .13 is omitted
+# below because the current format requires GMTOFF to be an integer.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Europe/Amsterdam	0:19:28 -	LMT	1892 May
-			0:19:28	Neth	%s	1937 Jul
-			0:20	Neth	NE%sT	1940 May 17 0:00
+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
 			1:00	C-Eur	CE%sT	1945 Apr  2 2:00
 			1:00	Neth	CE%sT	1977
 			1:00	EU	CE%sT
@@ -1417,17 +1490,62 @@ Rule	Norway	1959	1964	-	Mar	Sun>=15	2:00s	1:00	S
 Rule	Norway	1959	1965	-	Sep	Sun>=15	2:00s	0	-
 Rule	Norway	1965	only	-	Apr	25	2:00s	1:00	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Europe/Oslo	0:43:00 -	LMT	1895
+Zone	Europe/Oslo	0:43:00 -	LMT	1895 Jan  1
 			1:00	Norway	CE%sT	1940 Aug 10 23:00
 			1:00	C-Eur	CE%sT	1945 Apr  2  2:00
 			1:00	Norway	CE%sT	1980
 			1:00	EU	CE%sT
 
 # Svalbard & Jan Mayen
+
+# From Steffen Thorsen (2001-05-01):
+# Although I could not find it explicitly, it seems that Jan Mayen and
+# Svalbard have been using the same time as Norway at least since the
+# time they were declared as parts of Norway.  Svalbard was declared
+# as a part of Norway by law of 1925-07-17 no 11, section 4 and Jan
+# Mayen by law of 1930-02-27 no 2, section 2. (From
+# http://www.lovdata.no/all/nl-19250717-011.html and
+# http://www.lovdata.no/all/nl-19300227-002.html).  The law/regulation
+# for normal/standard time in Norway is from 1894-06-29 no 1 (came
+# into operation on 1895-01-01) and Svalbard/Jan Mayen seem to be a
+# part of this law since 1925/1930. (From
+# http://www.lovdata.no/all/nl-18940629-001.html ) I have not been
+# able to find if Jan Mayen used a different time zone (e.g. -0100)
+# before 1930. Jan Mayen has only been "inhabitated" since 1921 by
+# Norwegian meteorologists and maybe used the same time as Norway ever
+# since 1921.  Svalbard (Arctic/Longyearbyen) has been inhabited since
+# before 1895, and therefore probably changed the local time somewhere
+# between 1895 and 1925 (inclusive).
+
+# From Paul Eggert (2001-05-01):
+#
+# Actually, Jan Mayen was never occupied by Germany during World War II,
+# so it must have diverged from Oslo time during the war, as Olso was
+# keeping Berlin time.
+#
+# <http://home.no.net/janmayen/history.htm> says that the meteorologists
+# burned down their station in 1940 and left the island, but returned in
+# 1941 with a small Norwegian garrison and continued operations despite
+# frequent air ttacks from Germans.  In 1943 the Americans established a
+# radiolocating station on the island, called "Atlantic City".  Possibly
+# the UTC offset changed during the war, but I think it unlikely that
+# Jan Mayen used German daylight-saving rules.
+#
+# Svalbard is more complicated, as it was raided in August 1941 by an
+# Allied party that evacuated the civilian population to England (says
+# <http://www.bartleby.com/65/sv/Svalbard.html>).  The Svalbard FAQ
+# <http://www.svalbard.com/SvalbardFAQ.html> says that the Germans were
+# expelled on 1942-05-14.  However, small parties of Germans did return,
+# and according to Wilhelm Dege's book "War North of 80" (1954)
+# <http://www.utpress.utoronto.ca/publishing/rights/dege_warnorthof80.htm>
+# the German armed forces at the Svalbard weather station code-named
+# Haudegen did not surrender to the Allies until September 1945.
+#
+# All these events predate our cutoff date of 1970.  Unless we can
+# come up with more definitive info about the timekeeping during the
+# war years it's probably best just do do the following for now:
 Link	Europe/Oslo	Arctic/Longyearbyen
-# From Whitman:
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Atlantic/Jan_Mayen	-1:00	-	EGT
+Link	Europe/Oslo	Atlantic/Jan_Mayen
 
 # Poland
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
@@ -1571,14 +1689,14 @@ Zone	Europe/Lisbon	-0:36:32 -	LMT	1884
 			 1:00	EU	CE%sT	1996 Mar 31 1:00u
 			 0:00	EU	WE%sT
 Zone Atlantic/Azores	-1:42:40 -	LMT	1884		# Ponta Delgada
-			-1:55	-	HMT	1911 May 24  # Horta Mean Time
+			-1:54:32 -	HMT	1911 May 24  # 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
 			 0:00	EU	WE%sT	1993 Mar 28 1:00u
 			-1:00	EU	AZO%sT
 Zone Atlantic/Madeira	-1:07:36 -	LMT	1884		# Funchal
-			-1:08	-	FMT	1911 May 24  # Funchal Mean Time
+			-1:07:36 -	FMT	1911 May 24  # Funchal Mean Time
 			-1:00	Port	MAD%sT	1966 Apr  3 2:00 # Madeira Time
 			 0:00	Port	WE%sT	1983 Sep 25 1:00s
 			 0:00	EU	WE%sT
@@ -1619,6 +1737,12 @@ Zone Europe/Bucharest	1:44:24 -	LMT	1891 Oct
 # are from Andrey A. Chernov.  The rest is from Shanks, except we follow
 # Chernov's report that 1992 DST transitions were Sat 23:00, not Sun 02:00s.
 #
+# From Stanislaw A. Kuzikowski <S.A.Kuz@iae.nsk.su> (1994-06-29):
+# But now it is some months since Novosibirsk is 3 hours ahead of Moscow!
+# I do not know why they have decided to make this change;
+# as far as I remember it was done exactly during winter->summer switching
+# so we (Novosibirsk) simply did not switch.
+#
 # From Andrey A. Chernov <ache@nagual.ru> (1996-10-04):
 # `MSK' and `MSD' were born and used initially on Moscow computers with
 # Unix-like OSes by several developer groups (e.g. Demos group, Kiae group)....
@@ -1637,12 +1761,44 @@ Zone Europe/Bucharest	1:44:24 -	LMT	1891 Oct
 # the rest of Russia for two weeks--even soldiers stationed here began
 # enforcing curfew at the wrong time.
 #
+# From Gwillim Law (2001-06-05):
+# There's considerable evidence that Sakhalin Island used to be in
+# UTC+11, and has changed to UTC+10, in this decade.  I start with the
+# SSIM, which listed Yuzhno-Sakhalinsk in zone RU10 along with Magadan
+# until February 1997, and then in RU9 with Khabarovsk and Vladivostok
+# since September 1997....  Although the Kuril Islands are
+# administratively part of Sakhalin oblast', they appear to have
+# remained on UTC+11 along with Magadan.
+#
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Europe/Kaliningrad	 1:22:00 - 	LMT	1893 Apr
+#
+# Kaliningradskaya oblast'.
+Zone Europe/Kaliningrad	 1:22:00 -	LMT	1893 Apr
 			 1:00	C-Eur	CE%sT	1945
 			 2:00	Poland	CE%sT	1946
 			 3:00	Russia	MSK/MSD	1991 Mar 31 2:00s
 			 2:00	Russia	EE%sT
+#
+# From Oscar van Vlijmen (2001-08-25): [This region consists of]
+# Respublika Adygeya, Arkhangel'skaya oblast', Astrakhanskaya oblast',
+# Belgorodskaya oblast', Bryanskaya oblast', Vladimirskaya oblast',
+# Volgogradskaya oblast', Vologodskaya oblast', Voronezhskaya oblast',
+# Respublika Dagestan, Ivanovskaya oblast', Respublika Ingushetiya,
+# Kabarbino-Balkarskaya Respublika, Respublika Kalmykiya,
+# Kalyzhskaya oblast', Respublika Karachaevo-Cherkessiya,
+# Respublika Kareliya, Kirovskaya oblast', Respublika Komi,
+# Kostromskaya oblast', Krasnodarskij kraj, Kurskaya oblast',
+# Leningradskaya oblast', Lipetskaya oblast', Respublika Marij El,
+# Respublika Mordoviya, Moskva, Moskovskaya oblast',
+# Murmanskaya oblast', Nenetskij avtonomnyj okrug,
+# Nizhegorodskaya oblast', Novgorodskaya oblast', Orlovskaya oblast',
+# Penzenskaya oblast', Pskovskaya oblast', Rostovskaya oblast',
+# Ryazanskaya oblast', Sankt-Peterburg, Saratovskaya oblast',
+# Respublika Severnaya Osetiya, Smolenskaya oblast',
+# Stavropol'skij kraj, Tambovskaya oblast', Respublika Tatarstan,
+# Tverskaya oblast', Tyl'skaya oblast', Ul'yanovskaya oblast',
+# Chechenskaya Respublika, Chuvashskaya oblast',
+# Yaroslavskaya oblast'
 Zone Europe/Moscow	 2:30:20 -	LMT	1880
 			 2:30	-	MMT	1916 Jul  3 # Moscow Mean Time
 			 2:30:48 Russia	%s	1919 Jul  1 2:00
@@ -1651,6 +1807,9 @@ Zone Europe/Moscow	 2:30:20 -	LMT	1880
 			 3:00	Russia	MSK/MSD	1991 Mar 31 2:00s
 			 2:00	Russia	EE%sT	1992 Jan 19 2:00s
 			 3:00	Russia	MSK/MSD
+#
+# From Oscar van Vlijmen (2001-08-25): [This region consists of]
+# Samarskaya oblast', Udmyrtskaya respublika
 Zone Europe/Samara	 3:20:36 -	LMT	1919 Jul  1 2:00
 			 3:00	-	KUYT	1930 Jun 21 # Kuybyshev
 			 4:00	Russia	KUY%sT	1989 Mar 26 2:00s
@@ -1658,59 +1817,115 @@ Zone Europe/Samara	 3:20:36 -	LMT	1919 Jul  1 2:00
 			 2:00	Russia	KUY%sT	1991 Sep 29 2:00s
 			 3:00	-	KUYT	1991 Oct 20 3:00
 			 4:00	Russia	SAM%sT	# Samara Time
+#
+# From Oscar van Vlijmen (2001-08-25): [This region consists of]
+# Respublika Bashkortostan, Komi-Permyatskij avtonomnyj okrug,
+# Kurganskaya oblast', Orenburgskaya oblast', Permskaya oblast',
+# Sverdlovskaya oblast', Tyumenskaya oblast',
+# Khanty-Manskijskij avtonomnyj okrug, Chelyabinskaya oblast',
+# Yamalo-Nenetskij avtonomnyj okrug.
 Zone Asia/Yekaterinburg	 4:02:24 -	LMT	1919 Jul 15 4:00
 			 4:00	-	SVET	1930 Jun 21 # Sverdlovsk Time
 			 5:00	Russia	SVE%sT	1991 Mar 31 2:00s
 			 4:00	Russia	SVE%sT	1992 Jan 19 2:00s
 			 5:00	Russia	YEK%sT	# Yekaterinburg Time
+#
+# From Oscar van Vlijmen (2001-08-25): [This region consists of]
+# Respublika Altaj, Altajskij kraj, Omskaya oblast'.
 Zone Asia/Omsk		 4:53:36 -	LMT	1919 Nov 14
 			 5:00	-	OMST	1930 Jun 21 # Omsk TIme
 			 6:00	Russia	OMS%sT	1991 Mar 31 2:00s
 			 5:00	Russia	OMS%sT	1992 Jan 19 2:00s
 			 6:00	Russia	OMS%sT
-# From Stanislaw A. Kuzikowski <S.A.Kuz@iae.nsk.su> (1994-06-29):
-# But now it is some months since Novosibirsk is 3 hours ahead of Moscow!
-# I do not know why they have decided to make this change;
-# as far as I remember it was done exactly during winter->summer switching
-# so we (Novosibirsk) simply did not switch.
+#
+# Novosibirskaya oblast'.
 Zone Asia/Novosibirsk	 5:31:40 -	LMT	1919 Dec 14 6:00
 			 6:00	-	NOVT	1930 Jun 21 # Novosibirsk Time
 			 7:00	Russia	NOV%sT	1991 Mar 31 2:00s
 			 6:00	Russia	NOV%sT	1992 Jan 19 2:00s
 			 7:00	Russia	NOV%sT	1993 May 23 # says Shanks
 			 6:00	Russia	NOV%sT
+#
+# From Oscar van Vlijmen (2001-08-25): [This region consists of]
+# Kemerovskaya oblast', Krasnoyarskij kraj,
+# Tajmyrskij (Dolgano-Nenetskij) avtonomnyj okrug, Tomskaya oblast',
+# Respublika Tuva, Respublika Khakasiya, Evenkijskij avtonomnyj okrug.
 Zone Asia/Krasnoyarsk	 6:11:20 -	LMT	1920 Jan  6
 			 6:00	-	KRAT	1930 Jun 21 # Krasnoyarsk Time
 			 7:00	Russia	KRA%sT	1991 Mar 31 2:00s
 			 6:00	Russia	KRA%sT	1992 Jan 19 2:00s
 			 7:00	Russia	KRA%sT
+#
+# From Oscar van Vlijmen (2001-08-25): [This region consists of]
+# Respublika Buryatiya, Irkutskaya oblast',
+# Ust'-Ordynskij Buryatskij avtonomnyj okrug.
 Zone Asia/Irkutsk	 6:57:20 -	LMT	1880
 			 6:57:20 -	IMT	1920 Jan 25 # Irkutsk Mean Time
 			 7:00	-	IRKT	1930 Jun 21 # Irkutsk Time
 			 8:00	Russia	IRK%sT	1991 Mar 31 2:00s
 			 7:00	Russia	IRK%sT	1992 Jan 19 2:00s
 			 8:00	Russia	IRK%sT
+#
+# From Oscar van Vlijmen (2001-08-25): [This region consists of]
+# Aginskij Buryatskij avtonomnyj okrug, Amurskaya oblast',
+# [parts of] Respublika Sakha (Yakutiya), Chitinskaya oblast'.
+#
+# From Alan Pritchard (2001-08-24): [The Sakha districts are:]
+# Aldansky, Amginsky, Anabarsky, Bulunsky, Churapchinsky,
+# Eveno-Bytantaisky, Gorny, Khangalassky, Kobyaisky, Lensky,
+# Megino-Kangalassky, Mirninsky, Namsky, Nyurbinsky, Olenyoksky,
+# Olyokminsky, Srednekolymsky, Suntarsky, Tattinsky, Ust-Aldansky,
+# Verkhnekolymsky, Verkhnevilyuisky, Vilyuisky, Zhigansky.
 Zone Asia/Yakutsk	 8:38:40 -	LMT	1919 Dec 15
 			 8:00	-	YAKT	1930 Jun 21 # Yakutsk Time
 			 9:00	Russia	YAK%sT	1991 Mar 31 2:00s
 			 8:00	Russia	YAK%sT	1992 Jan 19 2:00s
 			 9:00	Russia	YAK%sT
+#
+# From Oscar van Vlijmen (2001-08-25): [This region consists of]
+# Evrejskaya avtonomnaya oblast', Khabarovskij kraj, Primorskij kraj,
+# [parts of] Respublika Sakha (Yakutiya).
+#
+# From Alan Pritchard (2001-08-24): [The Sakha districts are:]
+# Tomponsky, Ust-Maisky, Ust-Yansky, Verkhoyansky.
 Zone Asia/Vladivostok	 8:47:44 -	LMT	1922 Nov 15
 			 9:00	-	VLAT	1930 Jun 21 # Vladivostok Time
 			10:00	Russia	VLA%sT	1991 Mar 31 2:00s
 			 9:00	Russia	VLA%sST	1992 Jan 19 2:00s
 			10:00	Russia	VLA%sT
+#
+# Sakhalinskaya oblast'.
+# The Zone name should be Yuzhno-Sakhalinsk, but that's too long.
+Zone Asia/Sakhalin	 9:30:48 -	LMT	1905 Aug 23
+			 9:00	-	CJT	1938
+			 9:00	-	JST	1945 Aug 25
+			11:00	Russia	SAK%sT	1991 Mar 31 2:00s # Sakhalin T.
+			10:00	Russia	SAK%sT	1992 Jan 19 2:00s
+			11:00	Russia	SAK%sT	1997 Mar lastSun 2:00s
+			10:00	Russia	SAK%sT
+#
+# From Oscar van Vlijmen (2001-08-25): [This region consists of]
+# Magadanskaya oblast', Respublika Sakha (Yakutiya).
+#
+# From Alan Pritchard (2001-08-24): [The Sakha districts are:]
+# Abyisky, Allaikhovsky, Momsky, Nizhnekolymsky, Oimyakonsky.
 Zone Asia/Magadan	10:03:12 -	LMT	1924 May  2
 			10:00	-	MAGT	1930 Jun 21 # Magadan Time
 			11:00	Russia	MAG%sT	1991 Mar 31 2:00s
 			10:00	Russia	MAG%sT	1992 Jan 19 2:00s
 			11:00	Russia	MAG%sT
-# This name should be Asia/Petropavlovsk-Kamchatski, but that's too long.
+#
+# From Oscar van Vlijmen (2001-08-25): [This region consists of]
+# Kamchatskaya oblast', Koryakskij avtonomnyj okrug.
+#
+# The Zone name should be Asia/Petropavlovsk-Kamchatski, but that's too long.
 Zone Asia/Kamchatka	10:34:36 -	LMT	1922 Nov 10
 			11:00	-	PETT	1930 Jun 21 # P-K Time
 			12:00	Russia	PET%sT	1991 Mar 31 2:00s
 			11:00	Russia	PET%sT	1992 Jan 19 2:00s
 			12:00	Russia	PET%sT
+#
+# Chukotskij avtonomnyj okrug
 Zone Asia/Anadyr	11:49:56 -	LMT	1924 May  2
 			12:00	-	ANAT	1930 Jun 21 # Anadyr Time
 			13:00	Russia	ANA%sT	1982 Apr  1 0:00s
@@ -1795,11 +2010,56 @@ Zone	Atlantic/Canary	-1:01:36 -	LMT	1922 Mar # Las Palmas de Gran C.
 # Ignore this for now, as the Canaries are part of the EU.
 
 # Sweden
+
+# From Ivan Nilsson (2001-04-13), superseding Shanks:
+#
+# The law "Svensk forfattningssamling 1878, no 14" about standard time in 1879:
+# From the beginning of 1879 (that is 01-01 00:00) the time for all
+# places in the country is "the mean solar time for the meridian at
+# three degrees, or twelve minutes of time, to the west of the
+# meridian of the Observatory of Stockholm".  The law is dated 1878-05-31.
+#
+# The observatory at that time had the meridian 18 degrees 03' 30"
+# eastern longitude = 01:12:14 in time.  Less 12 minutes gives the
+# national standard time as 01:00:14 ahead of GMT....
+#
+# About the beginning of CET in Sweden. The lawtext ("Svensk
+# forfattningssamling 1899, no 44") states, that "from the beginning
+# of 1900... ... the same as the mean solar time for the meridian at
+# the distance of one hour of time from the meridian of the English
+# observatory at Greenwich, or at 12 minutes 14 seconds to the west
+# from the meridian of the Observatory of Stockholm". The law is dated
+# 1899-06-16.  In short: At 1900-01-01 00:00:00 the new standard time
+# in Sweden is 01:00:00 ahead of GMT.
+#
+# 1916: The lawtext ("Svensk forfattningssamling 1916, no 124") states
+# that "1916-05-15 is considered to begin one hour earlier". It is
+# pretty obvious that at 05-14 23:00 the clocks are set to 05-15 00:00....
+# Further the law says, that "1916-09-30 is considered to end one hour later".
+#
+# The laws regulating [DST] are available on the site of the Swedish
+# Parliament beginning with 1985 - the laws regulating 1980/1984 are
+# not available on the site (to my knowledge they are only available
+# in Swedish): <http://www.riksdagen.se/english/work/sfst.asp> (type
+# "sommartid" without the quotes in the field "Fritext" and then click
+# the Sok-button).
+#
+# (2001-05-13):
+#
+# I have now found a newspaper stating that at 1916-10-01 01:00
+# summertime the church-clocks etc were set back one hour to show
+# 1916-10-01 00:00 standard time.  The article also reports that some
+# people thought the switch to standard time would take place already
+# at 1916-10-01 00:00 summer time, but they had to wait for another
+# hour before the event took place.
+#
+# Source: The newspaper "Dagens Nyheter", 1916-10-01, page 7 upper left.
+
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Europe/Stockholm	1:12:12 -	LMT	1878 May 31
-			1:12:12	-	SMT	1900 Jan  1  1:00 # Stockholm MT
-			1:00	-	CET	1916 Apr 14 23:00s
-			1:00	1:00	CEST	1916 Sep 30 23:00s
+Zone Europe/Stockholm	1:12:12 -	LMT	1879 Jan  1
+			1:00:14	-	SET	1900 Jan  1	# Swedish Time
+			1:00	-	CET	1916 May 14 23:00
+			1:00	1:00	CEST	1916 Oct  1 01:00
 			1:00	-	CET	1980
 			1:00	EU	CE%sT
 
diff --git a/share/zoneinfo/leapseconds b/share/zoneinfo/leapseconds
index f730e489c4d5..495eb818dfe7 100644
--- a/share/zoneinfo/leapseconds
+++ b/share/zoneinfo/leapseconds
@@ -1,4 +1,4 @@
-# @(#)leapseconds	7.13
+# @(#)leapseconds	7.14
 
 # Allowance for leapseconds added to each timezone file.
 
@@ -43,8 +43,9 @@ Leap	1994	Jun	30	23:59:60	+	S
 Leap	1995	Dec	31	23:59:60	+	S
 Leap	1997	Jun	30	23:59:60	+	S
 Leap	1998	Dec	31	23:59:60	+	S
-# INTERNATIONAL EARTH ROTATION SERVICE (IERS)
-# SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE
+
+#                  INTERNATIONAL EARTH ROTATION SERVICE (IERS)
+#   	       SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE
 # 
 # SERVICE DE LA ROTATION TERRESTRE
 # OBSERVATOIRE DE PARIS
@@ -53,12 +54,26 @@ Leap	1998	Dec	31	23:59:60	+	S
 # FAX       : 33 (0) 1 40 51 22 91
 # Internet  : iers@obspm.fr
 # 
-# Paris, 11 January 2001
+#                                                Paris, 25 June 2001
+# 
+#                                                Bulletin C 22
+# 
+#                                                To authorities responsible
+#                                                for the measurement and
+#                                                distribution of time
+# 
+#                           INFORMATION ON UTC - TAI
 # 
-# Bulletin C 21
+#  NO positive leap second will be introduced at the end of December 2001.
+#  The difference between UTC and the International Atomic Time TAI is :
 # 
-# To authorities responsible for the measurement and distribution of time
+#      from 1999 January 1, 0h UTC, until further notice : UTC-TAI = -32 s
 # 
-# INFORMATION ON UTC - TAI
+#  Leap seconds can be introduced in UTC at the end of the months of December
+#  or June,  depending on the evolution of UT1-TAI. Bulletin C is mailed every
+#  six months, either to announce a time step in UTC, or to confirm that there
+#  will be no time step at the next possible date.
 # 
-# NO positive leap second will be introduced at the end of June 2001.
+#                                              Daniel GAMBIS
+#                                              Director
+#                                              Earth Orientation Center of IERS
diff --git a/share/zoneinfo/northamerica b/share/zoneinfo/northamerica
index 58e790c1c15a..6821e9967453 100644
--- a/share/zoneinfo/northamerica
+++ b/share/zoneinfo/northamerica
@@ -1,4 +1,4 @@
-# @(#)northamerica	7.58
+# @(#)northamerica	7.60
 # also includes Central America and the Caribbean
 
 # This data is by no means authoritative; if you think you know better,
@@ -81,12 +81,12 @@
 # From Joseph Gallant <notquite@hotmail.com>, citing
 # George H. Douglas, _The Early Days of Radio Broadcasting_ (1987):
 # At 7 P.M. (Eastern War Time) [on 1945-08-14], the networks were set
-# to switch to London for Atlee's address, but the American people
+# to switch to London for Attlee's address, but the American people
 # never got to hear his speech live. According to one press account,
 # CBS' Bob Trout was first to announce the word of Japan's surrender,
 # but a few seconds later, NBC, ABC and Mutual also flashed the word
 # of surrender, all of whom interrupting the bells of Big Ben in
-# London which were to precede Mr. Atlee's speech.
+# London which were to precede Mr. Attlee's speech.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	US	1918	1919	-	Mar	lastSun	2:00	1:00	D
@@ -185,15 +185,8 @@ Rule	US	1987	max	-	Apr	Sun>=1	2:00	1:00	D
 # "Chamorro Standard Time" for time in Guam and the Northern Marianas.
 # See the file "australasia".
 
-# From Ryan Alessi of the Thousand Oaks Star (2001-02-15) via Rives McDow:
-# Brad Sherman, D-Sherman Oaks, introduced a bill in Congress on
-# Wednesday that could have California operating on Denver time as
-# early as this summer....  The options include keeping
-# daylight-saving time all year long, or setting clocks back two hours
-# -- instead of just one -- during the existing daylight-saving time.
 
-
-# US Eastern time, represented by New York
+# US eastern time, represented by New York
 
 # Connecticut, Delaware, District of Columbia, most of Florida,
 # Georgia, far southeastern Indiana, eastern Kentucky, Maine,
@@ -215,7 +208,7 @@ Zone America/New_York	-4:56:02 -	LMT	1883 Nov 18 12:00
 			-5:00	NYC	E%sT	1967
 			-5:00	US	E%sT
 
-# US Central time, represented by Chicago
+# US central time, represented by Chicago
 
 # Alabama, Arkansas, Florida panhandle, Illinois, western Indiana
 # corners, Iowa, most of Kansas, western Kentucky, Louisiana,
@@ -239,11 +232,16 @@ Zone America/Chicago	-5:50:36 -	LMT	1883 Nov 18 12:00
 			-6:00	US	C%sT	1946
 			-6:00	Chicago	C%sT	1967
 			-6:00	US	C%sT
+# Oliver County, ND switched from mountain to central time on 1992-10-25.
+Zone America/North_Dakota/Center -6:45:12 - LMT	1883 Nov 18 12:00
+			-7:00	US	M%sT	1992 Oct 25 02:00
+			-6:00	US	C%sT
 
-# US Mountain time, represented by Denver
+# US mountain time, represented by Denver
 #
 # Colorado, southern Idaho, far western Kansas, Montana, western
-# Nebraska, New Mexico, southwestern North Dakota, far eastern Oregon,
+# Nebraska, Nevada border (Jackpot, Owyhee, and Mountain City),
+# New Mexico, southwestern North Dakota, far eastern Oregon,
 # western South Dakota, far western Texas (El Paso County, Hudspeth County,
 # and Pine Springs and Nickel Creek in Culberson County), Utah, Wyoming
 #
@@ -263,7 +261,7 @@ Zone America/Denver	-6:59:56 -	LMT	1883 Nov 18 12:00
 
 # US Pacific time, represented by Los Angeles
 #
-# California, northern Idaho, Nevada, most of Oregon, and Washington
+# California, northern Idaho, most of Nevada, most of Oregon, and Washington
 #
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
 Rule	CA	1948	only	-	Mar	14	2:00	1:00	D
@@ -280,7 +278,7 @@ Zone America/Los_Angeles -7:52:58 -	LMT	1883 Nov 18 12:00
 # Alaska
 # AK%sT is the modern abbreviation for -9:00 per USNO.
 #
-# From Paul Eggert (2001-04-01):
+# From Paul Eggert (2001-05-30):
 # Howse writes that Alaska switched from the Julian to the Gregorian calendar,
 # and from east-of-GMT to west-of-GMT days, when the US bought it from Russia.
 # This was on 1867-10-18, a Friday; the previous day was 1867-10-06 Julian,
@@ -288,6 +286,13 @@ Zone America/Los_Angeles -7:52:58 -	LMT	1883 Nov 18 12:00
 # ignoring the switch from Julian to Gregorian, since we can't represent
 # the Julian calendar.
 #
+# As far as we know, none of the exact locations mentioned below were
+# permanently inhabited in 1867 by anyone using either calendar.
+# (Yakutat was colonized by the Russians in 1799, but the settlement
+# was destroyed in 1805 by a Yakutat-kon war party.)  However, there
+# were nearby inhabitants in some cases and for our purposes perhaps
+# it's best to simply use the official transition.
+#
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Juneau	 15:02:19 -	LMT	1867 Oct 18
 			 -8:57:41 -	LMT	1900 Aug 20 12:00
@@ -407,7 +412,7 @@ Zone America/Boise	-7:44:49 -	LMT	1883 Nov 18 12:00
 # Pam Belluck reported in the New York Times (2001-01-31) that the
 # Indiana Legislature is considering a bill to adopt DST statewide.
 # Her article mentioned Vevay, whose post office observes a different
-# time zone than Danner's Hardware across the street.
+# time zone from Danner's Hardware across the street.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
 Rule Indianapolis 1941	only	-	Jun	22	2:00	1:00	D
@@ -511,6 +516,13 @@ Link America/Louisville America/Kentucky/Louisville
 # Wayne County (central Kentucky) is switching from Central (-0600) to Eastern
 # (-0500) time.  They won't "fall back" this year.  See Sara Shipley,
 # The difference an hour makes, Nando Times (2000-08-29 15:33 -0400).
+#
+# From Paul Eggert (2001-07-16):
+# The final rule was published in the
+# <a href="http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=2000_register&docid=fr17au00-22">
+# Federal Register 65, 160 (2000-08-17), page 50154-50158.
+# </a>
+# 
 Zone America/Kentucky/Monticello -5:39:24 - LMT	1883 Nov 18 12:00
 			-6:00	US	C%sT	1946
 			-6:00	-	CST	1968
@@ -526,13 +538,20 @@ Zone America/Kentucky/Monticello -5:39:24 - LMT	1883 Nov 18 12:00
 # Oliver County, ND (from MST to CST) ... 1992-10
 # West Wendover, NV (from PST TO MST) ... 1999-10
 # Wayne County, KY (from CST to EST) ... 2000-10
-# There is another change in the offing; Mercer County, ND is looking
-# to change from MT to CT. It is possible that two other ND counties
-# (Sioux and Morton) will look to change also.  If made, the earliest
-# a change would be effective is October 2001.
 #
-# From Paul Eggert (2000-10-02):
-# FIXME: I haven't yet had time to incorporate all the above changes.
+# From Paul Eggert (2001-07-17):
+# We don't know where the line used to be within Kearny County, KS,
+# so omit that change for now.
+# See America/Indiana/Knox for the Starke County, IN change.
+# See America/North_Dakota/Center for the Oliver County, ND change.
+# West Wendover, NV officially switched from Pacific to mountain time on
+# 1999-10-31.  See the
+# <a href="http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=1999_register&docid=fr21oc99-15">
+# Federal Register 64, 203 (1999-10-21), page 56705-56707.
+# </a>
+# However, the Federal Register says that West Wendover already operated
+# on mountain time, and the rule merely made this official;
+# hence a separate tz entry is not needed.
 
 # Michigan
 #
@@ -589,10 +608,11 @@ Zone America/Menominee	-5:50:27 -	LMT	1885 Sep 18 12:00
 			-6:00	US	C%sT
 
 # Navassa
+# administered by the US Fish and Wildlife Service
 # claimed by US under the provisions of the 1856 Guano Islands Act
 # also claimed by Haiti
 # occupied 1857/1900 by the Navassa Phosphate Co
-# US lighthouse 1917/1997-01
+# US lighthouse 1917/1996-09
 # currently uninhabited
 # see Mark Fineman, ``An Isle Rich in Guano and Discord'',
 # _Los Angeles Times_ (1998-11-10), A1, A10; it cites
@@ -617,7 +637,7 @@ Link	Pacific/Honolulu	HST
 # Thomas G. Shanks, The International Atlas (5th edition),
 # San Diego: ACS Publications, Inc. (1999).
 #
-# Gwillim Law <Gwil_Law@bridge-point.com> writes that a good source
+# Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
 # Association's Standard Schedules Information Manual (IATA SSIM),
 # published semiannually.  Law sent in several helpful summaries
@@ -1076,9 +1096,9 @@ Zone America/Dawson_Creek -8:00:56 -	LMT	1884
 # From Paul Eggert (1999-09-20):
 # <a href="http://www.nunavut.com/basicfacts/english/basicfacts_1territory.html">
 # Basic Facts: The New Territory
-# </a> (1999) reports that Pangnirtung operates on Eastern time,
+# </a> (1999) reports that Pangnirtung operates on eastern time,
 # and that Coral Harbour does not observe DST.  We don't know when
-# Pangnirtung switched to Eastern time; we'll guess 1995.
+# Pangnirtung switched to eastern time; we'll guess 1995.
 # We'll ignore the claim about Coral Harbour for now,
 # since we have no further info.
 
@@ -1333,6 +1353,15 @@ Zone America/Dawson	-9:17:40 -	LMT	1900 Aug 20
 # References: "Diario de Monterrey" <www.diariodemonterrey.com/index.asp>
 # Palabra <http://palabra.infosel.com/010331/primera/ppri3101.pdf> (2001-03-31)
 
+# From Reuters (2001-09-04):
+# Mexico's Supreme Court on Tuesday declared that daylight savings was
+# unconstitutional in Mexico City, creating the possibility the
+# capital will be in a different time zone from the rest of the nation
+# next year....  The Supreme Court's ruling takes effect at 2:00
+# a.m. (0800 GMT) on Sept. 30, when Mexico is scheduled to revert to
+# standard time. "This is so residents of the Federal District are not
+# subject to unexpected time changes," a statement from the court said.
+
 # 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
@@ -1369,7 +1398,8 @@ Zone America/Mexico_City -6:36:36 -	LMT	1922 Jan  1  0:23:24
 			-7:00	-	MST	1931 May  1 23:00
 			-6:00	-	CST	1931 Oct
 			-7:00	-	MST	1932 Apr  1
-			-6:00	Mexico	C%sT
+			-6:00	Mexico	C%sT	2001 Sep 30 02:00
+			-6:00	-	CST
 # Chihuahua
 Zone America/Chihuahua	-7:04:20 -	LMT	1921 Dec 31 23:55:40
 			-7:00	-	MST	1927 Jun 10 23:00
@@ -1670,7 +1700,7 @@ Zone	America/Jamaica	-5:07:12 -	LMT	1890		# Kingston
 # Martinique
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Martinique	-4:04:20 -      LMT	1890		# Fort-de-France
-			-4:04	-	FFMT	1911 May     # Fort-de-France MT
+			-4:04:20 -	FFMT	1911 May     # Fort-de-France MT
 			-4:00	-	AST	1980 Apr  6
 			-4:00	1:00	ADT	1980 Sep 28
 			-4:00	-	AST
@@ -1696,7 +1726,7 @@ Rule	Nic	1992	only	-	Jan	1	4:00	1:00	D
 Rule	Nic	1992	only	-	Sep	24	0:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Managua	-5:45:08 -	LMT	1890
-			-5:45	-	MMT	1934 Jun 23  # Managua Mean Time
+			-5:45:12 -	MMT	1934 Jun 23 # Managua Mean Time?
 			-6:00	-	CST	1973 May
 			-5:00	-	EST	1975 Feb 16
 			-6:00	Nic	C%sT	1993 Jan 1 4:00
@@ -1706,7 +1736,7 @@ Zone	America/Managua	-5:45:08 -	LMT	1890
 # Panama
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Panama	-5:18:08 -	LMT	1890
-			-5:20	-	PMT	1908 Apr 22   # Panama Mean Time
+			-5:19:36 -	CMT	1908 Apr 22   # Colon Mean Time
 			-5:00	-	EST
 
 # Puerto Rico
@@ -1725,7 +1755,7 @@ Zone America/St_Kitts	-4:10:52 -	LMT	1912 Mar 2	# Basseterre
 # St Lucia
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/St_Lucia	-4:04:00 -	LMT	1890		# Castries
-			-4:04	-	CMT	1912	    # Castries Mean Time
+			-4:04:00 -	CMT	1912	    # Castries Mean Time
 			-4:00	-	AST
 
 # St Pierre and Miquelon
diff --git a/share/zoneinfo/southamerica b/share/zoneinfo/southamerica
index b51e7cfd5019..4e6743c9c614 100644
--- a/share/zoneinfo/southamerica
+++ b/share/zoneinfo/southamerica
@@ -1,4 +1,4 @@
-# @(#)southamerica	7.40
+# @(#)southamerica	7.42
 
 # This data is by no means authoritative; if you think you know better,
 # go ahead and edit the file (and please send any changes to
@@ -9,7 +9,7 @@
 # Thomas G. Shanks, The International Atlas (5th edition),
 # San Diego: ACS Publications, Inc. (1999).
 #
-# Gwillim Law <Gwil_Law@bridge-point.com> writes that a good source
+# Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
 # Association's Standard Schedules Information Manual (IATA SSIM),
 # published semiannually.  Law sent in several helpful summaries
@@ -125,6 +125,29 @@ Rule	Arg	2000	only	-	Mar	Sun>=1	0:00	0	-
 # de la Rua on March 2, 2000, because it would make people spend more energy
 # in the winter time, rather than less.  The change took effect on March 3.
 #
+# From Mariano Absatz (2001-06-06):
+# one of the major newspapers here in Argentina said that the 1999
+# Timezone Law (which never was effectively applied) will (would?) be
+# in effect.... The article is at
+# http://ar.clarin.com/diario/2001-06-06/e-01701.htm
+# ... The Law itself is "Ley No 25155", sanctioned on 1999-08-25, enacted
+# 1999-09-17, and published 1999-09-21.  The official publication is at:
+# http://www.boletin.jus.gov.ar/BON/Primera/1999/09-Septiembre/21/PDF/BO21-09-99LEG.PDF
+# Regretfully, you have to subscribe (and pay) for the on-line version....
+#
+# (2001-06-12):
+# the timezone for Argentina will not change next Sunday.
+# Apparently it will do so on Sunday 24th....
+# http://ar.clarin.com/diario/2001-06-12/s-03501.htm
+#
+# (2001-06-25):
+# Last Friday (yes, the last working day before the date of the change), the
+# Senate annulled the 1999 law that introduced the changes later postponed.
+# http://www.clarin.com.ar/diario/2001-06-22/s-03601.htm
+# It remains the vote of the Deputies..., but it will be the same....
+# This kind of things had always been done this way in Argentina.
+# We are still -03:00 all year round in all of the country.
+#
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 #
 # Buenos Aires (BA), Capital Federal (CF), Santa Cruz (SC),
@@ -206,7 +229,7 @@ Zone	America/Aruba	-4:40:24 -	LMT	1912 Feb 12	# Oranjestad
 # Bolivia
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/La_Paz	-4:32:36 -	LMT	1890
-			-4:32:36 -	LPMT	1931 Oct 15 # La Paz Mean Time
+			-4:32:36 -	CMT	1931 Oct 15 # Calamarca MT
 			-4:32:36 1:00	BOST	1932 Mar 21 # Bolivia ST
 			-4:00	-	BOT	# Bolivia Time
 
@@ -382,8 +405,14 @@ Rule	Brazil	2000	only	-	Feb	27	 0:00	0	-
 # repeals DST in PE and RR, effective 2000-10-15 00:00.
 # Decree <a href="http://pcdsh01.on.br/Dec3632.jpg">3,632</a> (2000-10-17)
 # repeals DST in SE, AL, PB, RN, CE, PI and MA, effective 2000-10-22 00:00.
+# Decree <a href="http://pcdsh01.on.br/figuras/HV3916.gif">3,916</a>
+# (2001-09-13) reestablishes DST in AL, CE, MA, PB, PE, PI, RN, SE.
+#
+# The latest decree listed above says that the following states observe DST:
+# AL, BA, CE, DF, ES, GO, MA, MG, MS, MT,
+# PB, PE, PI, PR, RJ, RN, RS, SC, SE, SP, TO.
 #
-# These give only one year's rules.  After that, the rules are guesses
+# For dates after mid-2002, the following rules are guesses
 # and are quite possibly wrong, but are more likely than no DST at all.
 Rule	Brazil	2000	max	-	Oct	Sun>=8	 0:00	1:00	S
 Rule	Brazil	2001	max	-	Feb	Sun>=15	 0:00	0	-
@@ -409,14 +438,16 @@ Zone America/Fortaleza	-2:34:00 -	LMT	1914
 			-3:00	Brazil	BR%sT	1990 Sep 17
 			-3:00	-	BRT	1999 Sep 30
 			-3:00	Brazil	BR%sT	2000 Oct 22
-			-3:00	-	BRT
+			-3:00	-	BRT	2001 Sep 13
+			-3:00	Brazil	BR%sT
 #
 # Pernambuco (PE) (except Atlantic islands)
 Zone America/Recife	-2:19:36 -	LMT	1914
 			-3:00	Brazil	BR%sT	1990 Sep 17
 			-3:00	-	BRT	1999 Sep 30
 			-3:00	Brazil	BR%sT	2000 Oct 15
-			-3:00	-	BRT
+			-3:00	-	BRT	2001 Sep 13
+			-3:00	Brazil	BR%sT
 #
 # Tocantins (TO)
 Zone America/Araguaina	-3:12:48 -	LMT	1914
@@ -431,7 +462,8 @@ Zone America/Maceio	-2:22:52 -	LMT	1914
 			-3:00	Brazil	BR%sT	1996 Sep  4
 			-3:00	-	BRT	1999 Sep 30
 			-3:00	Brazil	BR%sT	2000 Oct 22
-			-3:00	-	BRT
+			-3:00	-	BRT	2001 Sep 13
+			-3:00	Brazil	BR%sT
 #
 # Bahia (BA), Goias (GO), Distrito Federal (DF), Minas Gerais (MG),
 # Espirito Santo (ES), Rio de Janeiro (RJ), Sao Paulo (SP), Parana (PR),
@@ -441,7 +473,7 @@ Zone America/Sao_Paulo	-3:06:28 -	LMT	1914
 			-3:00	1:00	BRST	1964
 			-3:00	Brazil	BR%sT
 #
-# Mato Grosso, Mato Grosso do Sul
+# Mato Grosso (MT), Mato Grosso do Sul (MS)
 Zone America/Cuiaba	-3:44:20 -	LMT	1914
 			-4:00	Brazil	AM%sT
 #
@@ -493,16 +525,26 @@ Zone America/Rio_Branco	-4:31:12 -	LMT	1914
 # Because of the same drought, the government decided to end DST later,
 # on April 3, (one-time change).
 
-# From Gwillim Law (2001-02-20):
-# I came across a Chilean on-line newspaper, La Tercera.  Its
-# <a href="http://www.tercera.cl/diario/1998/03/13/extras.html">
-# 1998-03-13 issue
-# </a>, says (my translation):
-# "At 24:00 (midnight) tomorrow (Saturday) - 22:00 in the insular
-# territory [Easter Island, Juan Fernandez, etc.] - winter time will
-# begin in the entire country."
-
-# From Paul Eggert (2001-02-21):
+# From Gwillim Law (2001-05-04):
+# I came across another article in "La Tercera" about Chilean DST.
+# <http://www.tercera.cl/diario/2000/10/13/t-extras.html>
+# It clearly confirms my earlier suggestion, that DST begins at 22:00
+# on Easter Island....  But it also seems to be saying that the
+# observance of DST in Chile began in 1966, rather than 1969 as
+# ... [Shanks] has it....
+#
+# My translation:
+#
+# "The Chilean Army has announced that summer time will begin tomorrow,
+# Saturday, October 14 in continental Chile, insular Chile, and
+# Antarctica, as provided by Supreme Decree 25 of January 11, 1966.
+# By the preceding, official time in continental Chile and Chilean
+# Antarctic, and official time in Western Insular Chile, which applies
+# to Easter Island and Sala y Gomez Island, will be set forward at
+# midnight and at 22:00, respectively, by 20 minutes."
+
+# From Paul Eggert (2001-05-04):
+# Go with this article in preference to Shanks's 1969 date for modern DST.
 # Assume this rule has been used since DST was introduced in the islands.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
@@ -510,8 +552,8 @@ Rule	Chile	1918	only	-	Sep	 1	0:00	1:00	S
 Rule	Chile	1919	only	-	Jul	 2	0:00	0	-
 Rule	Chile	1927	1931	-	Sep	 1	0:00	1:00	S
 Rule	Chile	1928	1932	-	Apr	 1	0:00	0	-
-Rule	Chile	1969	1997	-	Oct	Sun>=9	4:00u	1:00	S
-Rule	Chile	1970	1998	-	Mar	Sun>=9	3:00u	0	-
+Rule	Chile	1966	1997	-	Oct	Sun>=9	4:00u	1:00	S
+Rule	Chile	1967	1998	-	Mar	Sun>=9	3:00u	0	-
 Rule	Chile	1998	only	-	Sep	27	4:00u	1:00	S
 Rule	Chile	1999	only	-	Apr	 4	3:00u	0	-
 Rule	Chile	1999	max	-	Oct	Sun>=9	4:00u	1:00	S
@@ -528,10 +570,9 @@ Zone Pacific/Easter	-7:17:28 -	LMT	1890	    # Mataveri
 			-7:00	Chile	EAS%sT	1982 Mar 14 # Easter I Time
 			-6:00	Chile	EAS%sT
 #
-# Whitman says Juan Fernandez Is are like America/Santiago.
-# San Ambrosio, San Felix
-# no information; probably like America/Santiago
-
+# Sala y Gomez Island is like Pacific/Easter.
+# Other Chilean locations, including Juan Fernandez Is, San Ambrosio,
+# San Felix, and Antarctic bases, are like America/Santiago.
 
 # Colombia
 # Shanks specifies 24:00 for 1992 transition times; go with IATA,
@@ -717,7 +758,7 @@ Rule	Peru	1994	only	-	Jan	 1	0:00	1:00	S
 Rule	Peru	1994	only	-	Apr	 1	0:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Lima	-5:08:12 -	LMT	1890
-			-5:09	-	LMT	1908 Jul 28 # Lima Mean Time
+			-5:08:36 -	LMT	1908 Jul 28 # Lima Mean Time?
 			-5:00	Peru	PE%sT	# Peru Time
 
 # South Georgia
@@ -802,6 +843,6 @@ Zone America/Montevideo	-3:44:44 -	LMT	1898 Jun 28
 # Venezuela
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Caracas	-4:27:44 -	LMT	1890
-			-4:27:44 -	CMT	1912 Feb 12  # Caracas Mean Time
+			-4:27:40 -	CMT	1912 Feb 12 # Caracas Mean Time?
 			-4:30	-	VET	1965	     # Venezuela Time
 			-4:00	-	VET
diff --git a/share/zoneinfo/zone.tab b/share/zoneinfo/zone.tab
index c28904e6bc82..1070f9c9c47d 100644
--- a/share/zoneinfo/zone.tab
+++ b/share/zoneinfo/zone.tab
@@ -1,4 +1,4 @@
-# @(#)zone.tab	1.22
+# @(#)zone.tab	1.24
 #
 # TZ zone descriptions
 #
@@ -12,7 +12,7 @@
 #     first latitude (+ is north), then longitude (+ is east).
 # 3.  Zone name used in value of TZ environment variable.
 # 4.  Comments; present if and only if the country has multiple rows.
-#     
+#
 # Columns are separated by a single tab.
 # The table is sorted first by country, then an order within the country that
 # (1) makes some geographical sense, and
@@ -120,13 +120,13 @@ CG	-0416+01517	Africa/Brazzaville
 CH	+4723+00832	Europe/Zurich
 CI	+0519-00402	Africa/Abidjan
 CK	-2114-15946	Pacific/Rarotonga
-CL	-3327-07040	America/Santiago	mainland
-CL	-2710-10927	Pacific/Easter	Easter Island
+CL	-3327-07040	America/Santiago	most locations
+CL	-2710-10927	Pacific/Easter	Easter Island & Sala y Gomez
 CM	+0403+00942	Africa/Douala
-CN	+4545+12641	Asia/Harbin	north Manchuria
-CN	+3114+12128	Asia/Shanghai	China coast
-CN	+2934+10635	Asia/Chungking	China mountains
-CN	+4348+08735	Asia/Urumqi	Tibet & Xinjiang
+CN	+3114+12128	Asia/Shanghai	most eastern locations
+CN	+4545+12641	Asia/Harbin	Heilongjiang
+CN	+2934+10635	Asia/Chongqing	central China
+CN	+4348+08735	Asia/Urumqi	Tibet & most of Xinjiang
 CN	+3929+07559	Asia/Kashgar	Eastern Turkestan
 CO	+0436-07405	America/Bogota
 CR	+0956-08405	America/Costa_Rica
@@ -168,9 +168,10 @@ GE	+4143+04449	Asia/Tbilisi
 GF	+0456-05220	America/Cayenne
 GH	+0533-00013	Africa/Accra
 GI	+3608-00521	Europe/Gibraltar
-GL	+7030-02215	America/Scoresbysund	east Greenland
-GL	+6411-05144	America/Godthab	southwest Greenland
-GL	+7634-06847	America/Thule	northwest Greenland
+GL	+6411-05144	America/Godthab	most locations
+GL	+7646-01840	America/Danmarkshavn	Danmarkshavn
+GL	+7030-02215	America/Scoresbysund	Scoresbysund / Ittoqqortoormiit
+GL	+7634-06847	America/Thule	Thule / Pituffik and environs
 GM	+1328-01639	Africa/Banjul
 GN	+0931-01343	Africa/Conakry
 GP	+1614-06132	America/Guadeloupe
@@ -187,7 +188,8 @@ HR	+4548+01558	Europe/Zagreb
 HT	+1832-07220	America/Port-au-Prince
 HU	+4730+01905	Europe/Budapest
 ID	-0610+10648	Asia/Jakarta	Java & Sumatra
-ID	-0507+11924	Asia/Ujung_Pandang	Borneo & Celebes
+ID	-0002+10920	Asia/Pontianak	west & central Borneo
+ID	-0507+11924	Asia/Ujung_Pandang	east & south Borneo, Celebes, Bali, Nusa Tengarra, west Timor
 ID	-0232+14042	Asia/Jayapura	Irian Jaya & the Moluccas
 IE	+5320-00615	Europe/Dublin
 IL	+3146+03514	Asia/Jerusalem
@@ -237,7 +239,8 @@ ML	+1239-00800	Africa/Bamako	southwest Mali
 ML	+1446-00301	Africa/Timbuktu	northeast Mali
 MM	+1647+09610	Asia/Rangoon
 MN	+4755+10653	Asia/Ulaanbaatar	most locations
-MN	+4801+09139	Asia/Hovd	Bayan-Olgiy, Hovd, Uvs
+MN	+4801+09139	Asia/Hovd	Bayan-Olgiy, Govi-Altai, Hovd, Uvs, Zavkhan
+MN	+4804+11430	Asia/Choibalsan	Dornod, Sukhbaatar
 MO	+2214+11335	Asia/Macao
 MP	+1512+14545	Pacific/Saipan
 MQ	+1436-06105	America/Martinique
@@ -303,7 +306,8 @@ RU	+5601+09250	Asia/Krasnoyarsk	Moscow+04 - Yenisei River
 RU	+5216+10420	Asia/Irkutsk	Moscow+05 - Lake Baikal
 RU	+6200+12940	Asia/Yakutsk	Moscow+06 - Lena River
 RU	+4310+13156	Asia/Vladivostok	Moscow+07 - Amur River
-RU	+5934+15048	Asia/Magadan	Moscow+08 - Magadan & Sakhalin
+RU	+4658+14242	Asia/Sakhalin	Moscow+07 - Sakhalin Island
+RU	+5934+15048	Asia/Magadan	Moscow+08 - Magadan
 RU	+5301+15839	Asia/Kamchatka	Moscow+09 - Kamchatka
 RU	+6445+17729	Asia/Anadyr	Moscow+10 - Bering Sea
 RW	-0157+03004	Africa/Kigali
@@ -361,6 +365,7 @@ US	+411745-0863730	America/Indiana/Knox	Eastern Standard Time - Indiana - Starke
 US	+384452-0850402	America/Indiana/Vevay	Eastern Standard Time - Indiana - Switzerland County
 US	+415100-0873900	America/Chicago	Central Time
 US	+450628-0873651	America/Menominee	Central Time - Michigan - Wisconsin border
+US	+470659-1011757	America/North_Dakota/Center	Central Time - North Dakota - Oliver County
 US	+394421-1045903	America/Denver	Mountain Time
 US	+433649-1161209	America/Boise	Mountain Time - south Idaho & east Oregon
 US	+364708-1084111	America/Shiprock	Mountain Time - Navajo