diff --git a/share/zoneinfo/africa b/share/zoneinfo/africa index 153e2546b306..6d5c9fb3bb23 100644 --- a/share/zoneinfo/africa +++ b/share/zoneinfo/africa @@ -1,15 +1,15 @@ -# @(#)africa 7.40 +# @(#)africa 8.3 # 
 
 # 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
 # tz@elsie.nci.nih.gov for general use in the future).
 
-# From Paul Eggert (1999-03-22):
+# From Paul Eggert (2006-03-22):
 #
 # A good source for time zone historical data outside the U.S. is
-# Thomas G. Shanks, The International Atlas (5th edition),
-# San Diego: ACS Publications, Inc. (1999).
+# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
+# San Diego: ACS Publications, Inc. (2003).
 #
 # Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
@@ -17,8 +17,8 @@
 # published semiannually.  Law sent in several helpful summaries
 # of the IATA's data after 1990.
 #
-# Except where otherwise noted, Shanks is the source for entries through 1990,
-# and IATA SSIM is the source for entries after 1990.
+# Except where otherwise noted, Shanks & Pottenger is the source for
+# entries through 1990, and IATA SSIM is the source for entries afterwards.
 #
 # Another source occasionally used is Edward W. Whitman, World Time Differences,
 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
@@ -65,7 +65,7 @@
 # Algeria
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Algeria	1916	only	-	Jun	14	23:00s	1:00	S
-Rule	Algeria	1916	1919	-	Oct	Sun<=7	23:00s	0	-
+Rule	Algeria	1916	1919	-	Oct	Sun>=1	23:00s	0	-
 Rule	Algeria	1917	only	-	Mar	24	23:00s	1:00	S
 Rule	Algeria	1918	only	-	Mar	 9	23:00s	1:00	S
 Rule	Algeria	1919	only	-	Mar	 1	23:00s	1:00	S
@@ -75,7 +75,7 @@ Rule	Algeria	1921	only	-	Mar	14	23:00s	1:00	S
 Rule	Algeria	1921	only	-	Jun	21	23:00s	0	-
 Rule	Algeria	1939	only	-	Sep	11	23:00s	1:00	S
 Rule	Algeria	1939	only	-	Nov	19	 1:00	0	-
-Rule	Algeria	1944	1945	-	Apr	Mon<=7	 2:00	1:00	S
+Rule	Algeria	1944	1945	-	Apr	Mon>=1	 2:00	1:00	S
 Rule	Algeria	1944	only	-	Oct	 8	 2:00	0	-
 Rule	Algeria	1945	only	-	Sep	16	 1:00	0	-
 Rule	Algeria	1971	only	-	Apr	25	23:00s	1:00	S
@@ -86,7 +86,8 @@ Rule	Algeria	1978	only	-	Mar	24	 1:00	1:00	S
 Rule	Algeria	1978	only	-	Sep	22	 3:00	0	-
 Rule	Algeria	1980	only	-	Apr	25	 0:00	1:00	S
 Rule	Algeria	1980	only	-	Oct	31	 2:00	0	-
-# Shanks gives 0:09 for Paris Mean Time; go with Howse's more precise 0:09:21.
+# Shanks & Pottenger give 0:09:20 for Paris Mean Time; go with Howse's
+# more precise 0:09:21.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Algiers	0:12:12 -	LMT	1891 Mar 15 0:01
 			0:09:21	-	PMT	1911 Mar 11    # Paris Mean Time
@@ -106,7 +107,8 @@ Zone	Africa/Luanda	0:52:56	-	LMT	1892
 			1:00	-	WAT
 
 # Benin
-# Whitman says they switched to 1:00 in 1946, not 1934; go with Shanks.
+# Whitman says they switched to 1:00 in 1946, not 1934;
+# go with Shanks & Pottenger.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Africa/Porto-Novo	0:10:28	-	LMT	1912
 			0:00	-	GMT	1934 Feb 26
@@ -130,7 +132,7 @@ Zone Africa/Bujumbura	1:57:28	-	LMT	1890
 			2:00	-	CAT
 
 # Cameroon
-# Whitman says they switched to 1:00 in 1920; go with Shanks.
+# Whitman says they switched to 1:00 in 1920; go with Shanks & Pottenger.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Douala	0:38:48	-	LMT	1912
 			1:00	-	WAT
@@ -229,9 +231,9 @@ Zone	Africa/Asmera	2:35:32 -	LMT	1870
 			3:00	-	EAT
 
 # Ethiopia
-# From Paul Eggert (1997-10-05):
-# Shanks writes that Ethiopia had six narrowly-spaced time zones between
-# 1870 and 1890, and that they merged to 38E50 (2:35:20) in 1890.
+# From Paul Eggert (2006-03-22):
+# Shanks & Pottenger write that Ethiopia had six narrowly-spaced time zones
+# between 1870 and 1890, and that they merged to 38E50 (2:35:20) in 1890.
 # We'll guess that 38E50 is for Adis Dera.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Africa/Addis_Ababa	2:34:48 -	LMT	1870
@@ -252,7 +254,8 @@ Zone	Africa/Banjul	-1:06:36 -	LMT	1912
 
 # Ghana
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-# Whitman says DST was observed from 1931 to ``the present''; go with Shanks.
+# Whitman says DST was observed from 1931 to ``the present'';
+# go with Shanks & Pottenger.
 Rule	Ghana	1936	1942	-	Sep	 1	0:00	0:20	GHST
 Rule	Ghana	1936	1942	-	Dec	31	0:00	0	GMT
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -288,13 +291,14 @@ Zone	Africa/Maseru	1:50:00 -	LMT	1903 Mar
 			2:00	-	SAST
 
 # Liberia
-# From Paul Eggert (2001-07-17):
+# From Paul Eggert (2006-03-22):
 # In 1972 Liberia was the last country to switch
 # 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
-# each report -0:44:30; go with the more precise figure.
+# Shank & Pottenger report the date as May 1, whereas Howse reports Jan;
+# go with Shanks & Pottenger.
+# For Liberia before 1972, Shanks & Pottenger report -0:44, whereas Howse and
+# Whitman each report -0:44:30; go with the more precise figure.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Monrovia	-0:43:08 -	LMT	1882
 			-0:43:08 -	MMT	1919 Mar # Monrovia Mean Time
@@ -324,7 +328,7 @@ Zone	Africa/Tripoli	0:52:44 -	LMT	1920
 			1:00	Libya	CE%sT	1959
 			2:00	-	EET	1982
 			1:00	Libya	CE%sT	1990 May  4
-# The following entries are all from Shanks;
+# The following entries are from Shanks & Pottenger;
 # the IATA SSIM data contain some obvious errors.
 			2:00	-	EET	1996 Sep 30
 			1:00	-	CET	1997 Apr  4
@@ -403,8 +407,8 @@ Zone	Africa/Maputo	2:10:20 -	LMT	1903 Mar
 			2:00	-	CAT
 
 # Namibia
-# The 1994-04-03 transition is from Shanks.
-# Shanks reports no DST after 1998-04; go with IATA.
+# The 1994-04-03 transition is from Shanks & Pottenger.
+# Shanks & Pottenger report no DST after 1998-04; go with IATA.
 # 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	-
@@ -488,7 +492,7 @@ Zone	Indian/Mahe	3:41:48 -	LMT	1906 Jun	# Victoria
 
 # Sierra Leone
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-# Whitman gives Mar 31 - Aug 31 for 1931 on; go with Shanks.
+# Whitman gives Mar 31 - Aug 31 for 1931 on; go with Shanks & Pottenger.
 Rule	SL	1935	1942	-	Jun	 1	0:00	0:40	SLST
 Rule	SL	1935	1942	-	Oct	 1	0:00	0	WAT
 Rule	SL	1957	1962	-	Jun	 1	0:00	1:00	SLST
@@ -557,7 +561,6 @@ Zone	Africa/Lome	0:04:52 -	LMT	1893
 # Tunisia
 
 # From Gwillim Law (2005-04-30):
-#
 # My correspondent, Risto Nykanen, has alerted me to another adoption of DST,
 # this time in Tunisia.  According to Yahoo France News
 # , in a story attributed to AP
@@ -571,6 +574,12 @@ Zone	Africa/Lome	0:04:52 -	LMT	1893
 # 
 # ... DST for 2005: on: Sun May 1 0h standard time, off: Fri Sept. 30,
 # 1h standard time.
+#
+# From Atef Loukil (2006-03-28):
+# The daylight saving time will be the same each year:
+# Beginning      : the last Sunday of March at 02:00
+# Ending         : the last Sunday of October at 03:00 ...
+# http://www.tap.info.tn/en/index.php?option=com_content&task=view&id=1188&Itemid=50
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Tunisia	1939	only	-	Apr	15	23:00s	1:00	S
@@ -596,8 +605,11 @@ Rule	Tunisia	1989	only	-	Mar	26	 0:00s	1:00	S
 Rule	Tunisia	1990	only	-	May	 1	 0:00s	1:00	S
 Rule	Tunisia	2005	only	-	May	 1	 0:00s	1:00	S
 Rule	Tunisia	2005	only	-	Sep	30	 1:00s	0	-
-# Shanks gives 0:09 for Paris Mean Time; go with Howse's more precise 0:09:21.
-# Shanks says the 1911 switch occurred on Mar 9; go with Howse's Mar 11.
+Rule	Tunisia	2006	max	-	Mar	lastSun	 2:00s	1:00	S
+Rule	Tunisia	2006	max	-	Oct	lastSun	 2:00s	0	-
+# Shanks & Pottenger give 0:09:20 for Paris Mean Time; go with Howse's
+# more precise 0:09:21.
+# Shanks & Pottenger say the 1911 switch was on Mar 9; go with Howse's Mar 11.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Tunis	0:40:44 -	LMT	1881 May 12
 			0:09:21	-	PMT	1911 Mar 11    # Paris Mean Time
diff --git a/share/zoneinfo/antarctica b/share/zoneinfo/antarctica
index f3efe19b683d..0efde3842c48 100644
--- a/share/zoneinfo/antarctica
+++ b/share/zoneinfo/antarctica
@@ -1,4 +1,4 @@
-# @(#)antarctica	7.30
+# @(#)antarctica	8.2
 # 
 
 # From Paul Eggert (1999-11-15):
@@ -34,12 +34,12 @@ Rule	RussAQ	1996	max	-	Oct	lastSun	 2:00s	0	-
 Rule	ArgAQ	1964	1966	-	Mar	 1	0:00	0	-
 Rule	ArgAQ	1964	1966	-	Oct	15	0:00	1:00	S
 Rule	ArgAQ	1967	only	-	Apr	 1	0:00	0	-
-Rule	ArgAQ	1967	1968	-	Oct	Sun<=7	0:00	1:00	S
-Rule	ArgAQ	1968	1969	-	Apr	Sun<=7	0:00	0	-
+Rule	ArgAQ	1967	1968	-	Oct	Sun>=1	0:00	1:00	S
+Rule	ArgAQ	1968	1969	-	Apr	Sun>=1	0:00	0	-
 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	ArgAQ	1974	1976	-	Oct	Sun>=1	0:00	1:00	S
+Rule	ArgAQ	1975	1977	-	Apr	Sun>=1	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
diff --git a/share/zoneinfo/asia b/share/zoneinfo/asia
index 59e62dde4f16..0d4c8838e0cc 100644
--- a/share/zoneinfo/asia
+++ b/share/zoneinfo/asia
@@ -1,15 +1,15 @@
-# @(#)asia	7.90
+# @(#)asia	8.4
 # 
 
 # 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
 # tz@elsie.nci.nih.gov for general use in the future).
 
-# From Paul Eggert (1999-03-22):
+# From Paul Eggert (2006-03-22):
 #
 # A good source for time zone historical data outside the U.S. is
-# Thomas G. Shanks, The International Atlas (5th edition),
-# San Diego: ACS Publications, Inc. (1999).
+# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
+# San Diego: ACS Publications, Inc. (2003).
 #
 # Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
@@ -17,8 +17,8 @@
 # published semiannually.  Law sent in several helpful summaries
 # of the IATA's data after 1990.
 #
-# Except where otherwise noted, Shanks is the source for entries through 1990,
-# and IATA SSIM is the source for entries after 1990.
+# Except where otherwise noted, Shanks & Pottenger is the source for
+# entries through 1990, and IATA SSIM is the source for entries afterwards.
 #
 # Another source occasionally used is Edward W. Whitman, World Time Differences,
 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
@@ -61,6 +61,7 @@
 # These rules are stolen from the `europe' file.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	EUAsia	1981	max	-	Mar	lastSun	 1:00u	1:00	S
+Rule	EUAsia	1979	1995	-	Sep	lastSun	 1:00u	0	-
 Rule	EUAsia	1996	max	-	Oct	lastSun	 1:00u	0	-
 Rule E-EurAsia	1981	max	-	Mar	lastSun	 0:00	1:00	S
 Rule E-EurAsia	1979	1995	-	Sep	lastSun	 0:00	0	-
@@ -82,10 +83,11 @@ Zone	Asia/Kabul	4:36:48 -	LMT	1890
 			4:30	-	AFT
 
 # Armenia
-# From Paul Eggert (1999-10-29):
-# Shanks has Yerevan switching to 3:00 (with Russian DST) in spring 1991,
-# then to 4:00 with no DST in fall 1995, then readopting Russian DST in 1997.
-# Go with Shanks, even when he disagrees with others.  Edgar Der-Danieliantz
+# From Paul Eggert (2006-03-22):
+# Shanks & Pottenger have Yerevan switching to 3:00 (with Russian DST)
+# in spring 1991, then to 4:00 with no DST in fall 1995, then
+# readopting Russian DST in 1997.  Go with Shanks & Pottenger, even
+# when they disagree with others.  Edgar Der-Danieliantz
 # reported (1996-05-04) that Yerevan probably wouldn't use DST
 # in 1996, though it did use DST in 1995.  IATA SSIM (1991/1998) reports that
 # Armenia switched from 3:00 to 4:00 in 1998 and observed DST after 1991,
@@ -194,13 +196,15 @@ Zone	Asia/Phnom_Penh	6:59:40 -	LMT	1906 Jun  9
 # CHINA               8 H  AHEAD OF UTC  ALL OF CHINA, INCL TAIWAN
 # CHINA               9 H  AHEAD OF UTC  APR 17 - SEP 10
 
-# From Paul Eggert (1995-12-19):
-# Shanks writes that China has had a single time zone since 1980 May 1,
-# observing summer DST from 1986 through 1991; this contradicts Devine's
+# From Paul Eggert (2006-03-22):
+# Shanks & Pottenger write that China (except for Hong Kong and Macau)
+# has had a single time zone since 1980 May 1, observing summer DST
+# from 1986 through 1991; this contradicts Devine's
 # note about Time magazine, though apparently _something_ happened in 1986.
-# Go with Shanks for now.  I made up names for the other pre-1980 time zones.
+# Go with Shanks & Pottenger for now.  I made up names for the other
+# pre-1980 time zones.
 
-# From Shanks:
+# From Shanks & Pottenger:
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Shang	1940	only	-	Jun	 3	0:00	1:00	D
 Rule	Shang	1940	1941	-	Oct	 1	0:00	0	S
@@ -266,7 +270,7 @@ Zone	Asia/Hong_Kong	7:36:36 -	LMT	1904 Oct 30
 
 # Taiwan
 
-# Shanks writes that Taiwan observed DST during 1945, when it
+# Shanks & Pottenger write that Taiwan observed DST during 1945, when it
 # was still controlled by Japan.  This is hard to believe, but we don't
 # have any other information.
 
@@ -423,7 +427,7 @@ Zone	Asia/Calcutta	5:53:28 -	LMT	1880	# Kolkata
 
 # Indonesia
 #
-# From Gwillim Law (2001-05-28), overriding Shanks:
+# From Gwillim Law (2001-05-28), overriding Shanks & Pottenger:
 # 
 # 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
@@ -431,7 +435,7 @@ Zone	Asia/Calcutta	5:53:28 -	LMT	1880	# Kolkata
 #
 # 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,
+# Shanks & Pottenger say 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
@@ -498,8 +502,8 @@ Zone Asia/Jayapura	9:22:48 -	LMT	1932 Nov
 # leap year calculation involved.  There has never been any serious
 # plan to change that law....
 #
-# From Paul Eggert (2005-04-05):
-# Go with Shanks before September 1991, and with Pournader thereafter.
+# From Paul Eggert (2006-03-22):
+# Go with Shanks & Pottenger before Sept. 1991, and with Pournader thereafter.
 # I used Ed Reingold's cal-persia in GNU Emacs 21.2 to check Persian dates,
 # stopping after 2037 when 32-bit time_t's overflow.
 # That cal-persia used Birashk's approximation, which disagrees with the solar
@@ -519,6 +523,14 @@ Zone Asia/Jayapura	9:22:48 -	LMT	1932 Nov
 # Reingold's/Dershowitz' calculator gives correctly the Gregorian date
 # 2058-03-21 for 1 Farvardin 1437 (astronomical).
 #
+# From Paul Eggert (2006-03-22):
+# The above comments about post-2006 transitions may become relevant again,
+# if Iran ever resuscitates DST, so we'll leave the comments in.
+#
+# From Steffen Thorsen (2006-03-22):
+# Several of my users have reported that Iran will not observe DST anymore:
+# http://www.irna.ir/en/news/view/line-17/0603193812164948.htm
+#
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Iran	1978	1980	-	Mar	21	0:00	1:00	D
 Rule	Iran	1978	only	-	Oct	21	0:00	0	S
@@ -537,38 +549,8 @@ Rule	Iran	2001	2003	-	Mar	22	0:00	1:00	D
 Rule	Iran	2001	2003	-	Sep	22	0:00	0	S
 Rule	Iran	2004	only	-	Mar	21	0:00	1:00	D
 Rule	Iran	2004	only	-	Sep	21	0:00	0	S
-Rule	Iran	2005	2007	-	Mar	22	0:00	1:00	D
-Rule	Iran	2005	2007	-	Sep	22	0:00	0	S
-Rule	Iran	2008	only	-	Mar	21	0:00	1:00	D
-Rule	Iran	2008	only	-	Sep	21	0:00	0	S
-Rule	Iran	2009	2011	-	Mar	22	0:00	1:00	D
-Rule	Iran	2009	2011	-	Sep	22	0:00	0	S
-Rule	Iran	2012	only	-	Mar	21	0:00	1:00	D
-Rule	Iran	2012	only	-	Sep	21	0:00	0	S
-Rule	Iran	2013	2015	-	Mar	22	0:00	1:00	D
-Rule	Iran	2013	2015	-	Sep	22	0:00	0	S
-Rule	Iran	2016	only	-	Mar	21	0:00	1:00	D
-Rule	Iran	2016	only	-	Sep	21	0:00	0	S
-Rule	Iran	2017	2019	-	Mar	22	0:00	1:00	D
-Rule	Iran	2017	2019	-	Sep	22	0:00	0	S
-Rule	Iran	2020	only	-	Mar	21	0:00	1:00	D
-Rule	Iran	2020	only	-	Sep	21	0:00	0	S
-Rule	Iran	2021	2023	-	Mar	22	0:00	1:00	D
-Rule	Iran	2021	2023	-	Sep	22	0:00	0	S
-Rule	Iran	2024	only	-	Mar	21	0:00	1:00	D
-Rule	Iran	2024	only	-	Sep	21	0:00	0	S
-Rule	Iran	2025	2027	-	Mar	22	0:00	1:00	D
-Rule	Iran	2025	2027	-	Sep	22	0:00	0	S
-Rule	Iran	2028	2029	-	Mar	21	0:00	1:00	D
-Rule	Iran	2028	2029	-	Sep	21	0:00	0	S
-Rule	Iran	2030	2031	-	Mar	22	0:00	1:00	D
-Rule	Iran	2030	2031	-	Sep	22	0:00	0	S
-Rule	Iran	2032	2033	-	Mar	21	0:00	1:00	D
-Rule	Iran	2032	2033	-	Sep	21	0:00	0	S
-Rule	Iran	2034	2035	-	Mar	22	0:00	1:00	D
-Rule	Iran	2034	2035	-	Sep	22	0:00	0	S
-Rule	Iran	2036	2037	-	Mar	21	0:00	1:00	D
-Rule	Iran	2036	2037	-	Sep	21	0:00	0	S
+Rule	Iran	2005	only	-	Mar	22	0:00	1:00	D
+Rule	Iran	2005	only	-	Sep	22	0:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Tehran	3:25:44	-	LMT	1916
 			3:25:44	-	TMT	1946	# Tehran Mean Time
@@ -601,7 +583,8 @@ Rule	Iraq	1984	1985	-	Apr	1	0:00	1:00	D
 Rule	Iraq	1985	1990	-	Sep	lastSun	1:00s	0	S
 Rule	Iraq	1986	1990	-	Mar	lastSun	1:00s	1:00	D
 # IATA SSIM (1991/1996) says Apr 1 12:01am UTC; guess the `:01' is a typo.
-# Shanks says Iraq did not observe DST 1992/1997 or 1999 on; ignore this.
+# Shanks & Pottenger say Iraq did not observe DST 1992/1997; ignore this.
+# 
 Rule	Iraq	1991	max	-	Apr	 1	3:00s	1:00	D
 Rule	Iraq	1991	max	-	Oct	 1	3:00s	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -635,7 +618,7 @@ Zone	Asia/Baghdad	2:57:40	-	LMT	1890
 # high on my favorite-country list (and not only because my wife's
 # family is from India).
 
-# From Shanks:
+# From Shanks & Pottenger:
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Zion	1940	only	-	Jun	 1	0:00	1:00	D
 Rule	Zion	1942	1944	-	Nov	 1	0:00	0	S
@@ -874,14 +857,15 @@ Zone	Asia/Jerusalem	2:20:56 -	LMT	1880
 # of the Japanese wanted to scrap daylight-saving time, as opposed to 30% who
 # wanted to keep it.)
 
-# Shanks writes that daylight saving in Japan during those years was as follows:
+# From Paul Eggert (2006-03-22):
+# Shanks & Pottenger write that DST in Japan during those years was as follows:
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Japan	1948	only	-	May	Sun>=1	2:00	1:00	D
 Rule	Japan	1948	1951	-	Sep	Sat>=8	2:00	0	S
 Rule	Japan	1949	only	-	Apr	Sun>=1	2:00	1:00	D
 Rule	Japan	1950	1951	-	May	Sun>=1	2:00	1:00	D
 # but the only locations using it (for birth certificates, presumably, since
-# Shanks's audience is astrologers) were US military bases.  For now, assume
+# their audience is astrologers) were US military bases.  For now, assume
 # that for most purposes daylight-saving time was observed; otherwise, what
 # would have been the point of the 1951 poll?
 
@@ -906,8 +890,9 @@ Rule	Japan	1950	1951	-	May	Sun>=1	2:00	1:00	D
 # I wrote "ordinance" above, but I don't know how to translate.
 # In Japanese it's "chokurei", which means ordinance from emperor.
 
-# Shanks claims JST in use since 1896, and that a few places (e.g. Ishigaki)
-# use +0800; go with Suzuki.  Guess that all ordinances took effect on Jan 1.
+# Shanks & Pottenger claim JST in use since 1896, and that a few
+# places (e.g. Ishigaki) use +0800; go with Suzuki.  Guess that all
+# ordinances took effect on Jan 1.
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Tokyo	9:18:59	-	LMT	1887 Dec 31 15:00u
@@ -934,6 +919,10 @@ Zone	Asia/Tokyo	9:18:59	-	LMT	1887 Dec 31 15:00u
 # From Paul Eggert (2005-11-22):
 # Starting 2003 transitions are from Steffen Thorsen's web site timeanddate.com.
 #
+# From Steffen Thorsen (2005-11-23):
+# For Jordan I have received multiple independent user reports every year
+# about DST end dates, as the end-rule is different every year.
+#
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Jordan	1973	only	-	Jun	6	0:00	1:00	S
 Rule	Jordan	1973	1975	-	Oct	1	0:00	0	-
@@ -975,11 +964,11 @@ Zone	Asia/Amman	2:23:44 -	LMT	1931
 # Guess that Aqtau and Aqtobe diverged in 1995, since that's the first time
 # IATA SSIM mentions a third time zone in Kazakhstan.
 
-# From Paul Eggert (2001-10-18):
+# From Paul Eggert (2006-03-22):
 # German Iofis, ELSI, Almaty (2001-10-09) reports that Kazakhstan uses
 # RussiaAsia rules, instead of switching at 00:00 as the IATA has it.
-# Go with Shanks, who has them always using RussiaAsia rules.
-# Also go with the following claims of Shanks:
+# Go with Shanks & Pottenger, who have them always using RussiaAsia rules.
+# Also go with the following claims of Shanks & Pottenger:
 #
 # - Kazakhstan did not observe DST in 1991.
 # - Qyzylorda switched from +5:00 to +6:00 on 1992-01-19 02:00.
@@ -1059,7 +1048,7 @@ Zone	Asia/Oral	3:25:24	-	LMT	1924 May  2 # or Ural'sk
 			5:00	-	ORAT
 
 # Kyrgyzstan (Kirgizstan)
-# Transitions through 1991 are from Shanks.
+# Transitions through 1991 are from Shanks & Pottenger.
 
 # From Paul Eggert (2005-08-15):
 # According to an article dated today in the Kyrgyzstan Development Gateway
@@ -1092,12 +1081,12 @@ Zone	Asia/Bishkek	4:58:24 -	LMT	1924 May  2
 # Daylight Savings Time was not observed until 1987.  He did not know
 # at what time of day DST starts or ends.
 
-# From Shanks:
+# From Shanks & Pottenger:
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	ROK	1960	only	-	May	15	0:00	1:00	D
 Rule	ROK	1960	only	-	Sep	13	0:00	0	S
-Rule	ROK	1987	1988	-	May	Sun<=14	0:00	1:00	D
-Rule	ROK	1987	1988	-	Oct	Sun<=14	0:00	0	S
+Rule	ROK	1987	1988	-	May	Sun>=8	0:00	1:00	D
+Rule	ROK	1987	1988	-	Oct	Sun>=8	0:00	0	S
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Seoul	8:27:52	-	LMT	1890
@@ -1180,8 +1169,8 @@ Zone Asia/Kuala_Lumpur	6:46:46 -	LMT	1901 Jan  1
 			7:30	-	MALT	1982 Jan  1
 			8:00	-	MYT	# Malaysia Time
 # Sabah & Sarawak
-# From Paul Eggert (2003-11-01):
-# The data here are mostly from Shanks, but the 1942, 1945 and 1982
+# From Paul Eggert (2006-03-22):
+# The data here are mostly from Shanks & Pottenger, but the 1942, 1945 and 1982
 # transition dates are from Mok Ly Yng.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Asia/Kuching	7:21:20	-	LMT	1926 Mar
@@ -1199,8 +1188,8 @@ Zone	Indian/Maldives	4:54:00 -	LMT	1880	# Male
 
 # Mongolia
 
-# Shanks says that Mongolia has three time zones, but usno1995 and the CIA map
-# Standard Time Zones of the World (1997-01)
+# Shanks & Pottenger say that Mongolia has three time zones, but
+# usno1995 and the CIA map Standard Time Zones of the World (2005-03)
 # both say that it has just one.
 
 # From Oscar van Vlijmen (1999-12-11):
@@ -1270,11 +1259,19 @@ Zone	Indian/Maldives	4:54:00 -	LMT	1880	# Male
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 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	-
+# Shanks & Pottenger and IATA SSIM say 1990s switches occurred at 00:00,
+# but McDow says the 2001 switches occurred at 02:00.  Also, IATA SSIM
+# (1996-09) says 1996-10-25.  Go with Shanks & Pottenger through 1998.
+#
+# Shanks & Pottenger say that the Sept. 1984 through Sept. 1990 switches
+# in Choibalsan (more precisely, in Dornod and Sukhbaatar) took place
+# at 02:00 standard time, not at 00:00 local time as in the rest of
+# the country.  That would be odd, and possibly is a result of their
+# correction of 02:00 (in the previous edition) not being done correctly
+# in the latest edition; so ignore it for now.
+
+Rule	Mongol	1985	1998	-	Mar	lastSun	0:00	1:00	S
+Rule	Mongol	1984	1998	-	Sep	lastSun	0:00	0	-
 # IATA SSIM (1999-09) says Mongolia no longer observes DST.
 Rule	Mongol	2001	only	-	Apr	lastSat	2:00	1:00	S
 Rule	Mongol	2001	max	-	Sep	lastSat	2:00	0	-
@@ -1400,8 +1397,8 @@ Zone	Asia/Karachi	4:28:12 -	LMT	1907
 # I guess more info may be available from the PA's web page (if/when they
 # have one).
 
-# From Paul Eggert (1998-02-25):
-# Shanks writes that Gaza did not observe DST until 1957, but we'll go
+# From Paul Eggert (2006-03-22):
+# Shanks & Pottenger write that Gaza did not observe DST until 1957, but go
 # with Shapir and assume that it observed DST from 1940 through 1947,
 # and that it used Jordanian rules starting in 1996.
 # We don't yet need a separate entry for the West Bank, since
@@ -1433,6 +1430,12 @@ Zone	Asia/Karachi	4:28:12 -	LMT	1907
 # From Paul Eggert (2005-11-22):
 # Starting 2004 transitions are from Steffen Thorsen's web site timeanddate.com.
 
+# From Steffen Thorsen (2005-11-23):
+# A user from Gaza reported that Gaza made the change early because of
+# the Ramadan.  Next year Ramadan will be even earlier, so I think
+# there is a good chance next year's end date will be around two weeks
+# earlier--the same goes for Jordan.
+
 # The rules for Egypt are stolen from the `africa' file.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule EgyptAsia	1957	only	-	May	10	0:00	1:00	S
@@ -1445,7 +1448,7 @@ Rule EgyptAsia	1966	only	-	Oct	 1	3:00	0	-
 Rule Palestine	1999	max	-	Apr	Fri>=15	0:00	1:00	S
 Rule Palestine	1999	2003	-	Oct	Fri>=15	0:00	0	-
 Rule Palestine	2004	only	-	Oct	 1	1:00	0	-
-Rule Palestine	2005	max	-	Oct	 4	1:00	0	-
+Rule Palestine	2005	max	-	Oct	 4	2:00	0	-
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Gaza	2:17:52	-	LMT	1900 Oct
@@ -1463,7 +1466,21 @@ Zone	Asia/Gaza	2:17:52	-	LMT	1900 Oct
 # Philippines, issued a proclamation announcing that 1844-12-30 was to
 # be immediately followed by 1845-01-01.  Robert H. van Gent has a
 # transcript of the decree in .
-# The rest of this data is from Shanks.
+# The rest of the data are from Shanks & Pottenger.
+
+# From Paul Eggert (2006-04-25):
+# Tomorrow's Manila Standard reports that the Philippines Department of
+# Trade and Industry is considering adopting DST this June when the
+# rainy season begins.  See
+# .
+# For now, we'll ignore this, since it's not definite and we lack details.
+#
+# From Jesper Norgaard Welen (2006-04-26):
+# ... claims that Philippines had DST last time in 1990:
+# http://story.philippinetimes.com/p.x/ct/9/id/145be20cc6b121c0/cid/3e5bbccc730d258c/
+# [a story dated 2006-04-25 by Cris Larano of Dow Jones Newswires,
+# but no details]
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Phil	1936	only	-	Nov	1	0:00	1:00	S
 Rule	Phil	1937	only	-	Feb	1	0:00	0	-
@@ -1523,6 +1540,49 @@ Zone	Asia/Singapore	6:55:25 -	LMT	1901 Jan  1
 # With effect from 12.30 a.m. on 26th October 1996
 # Sri Lanka will be six (06) hours ahead of GMT.
 
+# From Jesper Norgaard Welen (2006-04-14), quoting Sri Lanka News Online
+#  (2006-04-13):
+# 0030 hrs on April 15, 2006 (midnight of April 14, 2006 +30 minutes)
+# at present, become 2400 hours of April 14, 2006 (midnight of April 14, 2006).
+
+# From Peter Apps and Ranga Sirila of Reuters (2006-04-12) in:
+# 
+# [The Tamil Tigers] never accepted the original 1996 time change and simply
+# kept their clocks set five and a half hours ahead of Greenwich Mean
+# Time (GMT), in line with neighbor India.
+# From Paul Eggert (2006-04-18):
+# People who live in regions under Tamil control can use TZ='Asia/Calcutta',
+# as that zone has agreed with the Tamil areas since our cutoff date of 1970.
+
+# From K Sethu (2006-04-25):
+# I think the abbreviation LKT originated from the world of computers at
+# the time of or subsequent to the time zone changes by SL Government
+# twice in 1996 and probably SL Government or its standardization
+# agencies never declared an abbreviation as a national standard.
+#
+# I recollect before the recent change the government annoucemments
+# mentioning it as simply changing Sri Lanka Standard Time or Sri Lanka
+# Time and no mention was made about the abbreviation.
+#
+# If we look at Sri Lanka Department of Government's "Official News
+# Website of Sri Lanka" ... http://www.news.lk/ we can see that they
+# use SLT as abbreviation in time stamp at the beginning of each news
+# item....
+#
+# Within Sri Lanka I think LKT is well known among computer users and
+# adminsitrators.  In my opinion SLT may not be a good choice because the
+# nation's largest telcom / internet operator Sri Lanka Telcom is well
+# known by that abbreviation - simply as SLT (there IP domains are
+# slt.lk and sltnet.lk).
+#
+# But if indeed our government has adopted SLT as standard abbreviation
+# (that we have not known so far) then  it is better that it be used for
+# all computers.
+
+# From Paul Eggert (2006-04-25):
+# One possibility is that we wait for a bit for the dust to settle down
+# and then see what people actually say in practice.
+
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Colombo	5:19:24 -	LMT	1880
 			5:19:32	-	MMT	1906	# Moratuwa Mean Time
@@ -1531,7 +1591,8 @@ Zone	Asia/Colombo	5:19:24 -	LMT	1880
 			5:30	1:00	IST	1945 Oct 16 2:00
 			5:30	-	IST	1996 May 25 0:00
 			6:30	-	LKT	1996 Oct 26 0:30
-			6:00	-	LKT
+			6:00	-	LKT	2006 Apr 15 0:30
+			5:30	-	IST
 
 # Syria
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
@@ -1566,7 +1627,7 @@ Rule	Syria	1993	only	-	Sep	25	0:00	0	-
 # IATA SSIM (1998-02) says 1998-04-02;
 # (1998-09) says 1999-03-29 and 1999-09-29; (1999-02) says 1999-04-02,
 # 2000-04-02, and 2001-04-02; (1999-09) says 2000-03-31 and 2001-03-31;
-# ignore all these claims and go with Shanks.
+# ignore all these claims and go with Shanks & Pottenger.
 Rule	Syria	1994	1996	-	Apr	 1	0:00	1:00	S
 Rule	Syria	1994	max	-	Oct	 1	0:00	0	-
 Rule	Syria	1997	1998	-	Mar	lastMon	0:00	1:00	S
@@ -1576,7 +1637,7 @@ Zone	Asia/Damascus	2:25:12 -	LMT	1920	# Dimashq
 			2:00	Syria	EE%sT
 
 # Tajikistan
-# From Shanks.
+# From Shanks & Pottenger.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Dushanbe	4:35:12 -	LMT	1924 May  2
 			5:00	-	DUST	1930 Jun 21 # Dushanbe Time
@@ -1591,13 +1652,13 @@ Zone	Asia/Bangkok	6:42:04	-	LMT	1880
 			7:00	-	ICT
 
 # Turkmenistan
-# From Shanks.
+# From Shanks & Pottenger.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Ashgabat	3:53:32 -	LMT	1924 May  2 # or Ashkhabad
 			4:00	-	ASHT	1930 Jun 21 # Ashkhabad Time
 			5:00 RussiaAsia	ASH%sT	1991 Mar 31 2:00
 			4:00 RussiaAsia	ASH%sT	1991 Oct 27 # independence
-			4:00 RussiaAsia TM%sT	1992 Jan 19 2:00
+			4:00 RussiaAsia	TM%sT	1992 Jan 19 2:00
 			5:00	-	TMT
 
 # United Arab Emirates
@@ -1611,24 +1672,24 @@ Zone	Asia/Samarkand	4:27:12 -	LMT	1924 May  2
 			4:00	-	SAMT	1930 Jun 21 # Samarkand Time
 			5:00	-	SAMT	1981 Apr  1
 			5:00	1:00	SAMST	1981 Oct  1
-			6:00 RussiaAsia TAS%sT	1991 Mar 31 2:00 # Tashkent Time
-			5:00 RussiaAsia	TAS%sT	1991 Sep  1 # independence
+			6:00	-	TAST	1982 Apr  1 # Tashkent Time
+			5:00 RussiaAsia	SAM%sT	1991 Sep  1 # independence
 			5:00 RussiaAsia	UZ%sT	1992
-			5:00 RussiaAsia	UZ%sT	1993
 			5:00	-	UZT
 Zone	Asia/Tashkent	4:37:12 -	LMT	1924 May  2
 			5:00	-	TAST	1930 Jun 21 # Tashkent Time
-			6:00 RussiaAsia TAS%sT	1991 Mar 31 2:00s
+			6:00 RussiaAsia	TAS%sT	1991 Mar 31 2:00
 			5:00 RussiaAsia	TAS%sT	1991 Sep  1 # independence
 			5:00 RussiaAsia	UZ%sT	1992
-			5:00 RussiaAsia	UZ%sT	1993
 			5:00	-	UZT
 
 # Vietnam
+
 # From Paul Eggert (1993-11-18):
 # Saigon's official name is Thanh-Pho Ho Chi Minh, but it's too long.
 # We'll stick with the traditional name for now.
-# From Shanks:
+
+# From Shanks & Pottenger:
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Saigon	7:06:40 -	LMT	1906 Jun  9
 			7:06:20	-	SMT	1911 Mar 11 0:01 # Saigon MT?
diff --git a/share/zoneinfo/australasia b/share/zoneinfo/australasia
index 6cf976101211..2be83380aa3b 100644
--- a/share/zoneinfo/australasia
+++ b/share/zoneinfo/australasia
@@ -1,4 +1,4 @@
-# @(#)australasia	7.78
+# @(#)australasia	8.2
 # 
 
 # This file also includes Pacific islands.
@@ -210,7 +210,7 @@ Zone Indian/Christmas	7:02:52 -	LMT	1895 Feb
 			7:00	-	CXT	# Christmas Island Time
 
 # Cook Is
-# From Shanks:
+# From Shanks & Pottenger:
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Cook	1978	only	-	Nov	12	0:00	0:30	HS
 Rule	Cook	1979	1991	-	Mar	Sun>=1	0:00	0	-
@@ -308,7 +308,7 @@ Zone	Pacific/Nauru	11:07:40 -	LMT	1921 Jan 15	# Uaobe
 Rule	NC	1977	1978	-	Dec	Sun>=1	0:00	1:00	S
 Rule	NC	1978	1979	-	Feb	27	0:00	0	-
 Rule	NC	1996	only	-	Dec	 1	2:00s	1:00	S
-# Shanks says the following was at 2:00; go with IATA.
+# Shanks & Pottenger say the following was at 2:00; go with IATA.
 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
@@ -507,10 +507,10 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # go ahead and edit the file (and please send any changes to
 # tz@elsie.nci.nih.gov for general use in the future).
 
-# From Paul Eggert (1999-10-29):
+# From Paul Eggert (2006-03-22):
 # A good source for time zone historical data outside the U.S. is
-# Thomas G. Shanks, The International Atlas (5th edition),
-# San Diego: ACS Publications, Inc. (1999).
+# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
+# San Diego: ACS Publications, Inc. (2003).
 #
 # Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
@@ -518,8 +518,8 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # published semiannually.  Law sent in several helpful summaries
 # of the IATA's data after 1990.
 #
-# Except where otherwise noted, Shanks is the source for entries through 1990,
-# and IATA SSIM is the source for entries after 1990.
+# Except where otherwise noted, Shanks & Pottenger is the source for
+# entries through 1990, and IATA SSIM is the source for entries afterwards.
 #
 # Another source occasionally used is Edward W. Whitman, World Time Differences,
 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
@@ -669,7 +669,7 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 #   understood in Australia.
 
 # From Paul Eggert (1995-12-19):
-# Shanks reports 2:00 for all autumn changes in Australia and New Zealand.
+# Shanks & Pottenger report 2:00 for all autumn changes in Australia and NZ.
 # Mark Prior writes that his newspaper
 # reports that NSW's fall 1995 change will occur at 2:00,
 # but Robert Elz says it's been 3:00 in Victoria since 1970
@@ -842,14 +842,14 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # current DST ending dates, no worries.
 #
 # Rule	Oz	1971	1985	-	Oct	lastSun	2:00	1:00	-
-# Rule	Oz	1986	max	-	Oct	Sun<=24	2:00	1:00	-
+# Rule	Oz	1986	max	-	Oct	Sun>=18	2:00	1:00	-
 # Rule	Oz	1972	only	-	Feb	27	3:00	0	-
 # Rule	Oz	1973	1986	-	Mar	Sun>=1	3:00	0	-
-# Rule	Oz	1987	max	-	Mar	Sun<=21	3:00	0	-
+# Rule	Oz	1987	max	-	Mar	Sun>=15	3:00	0	-
 # Zone	Australia/Tasmania	10:00	Oz	EST
 # Zone	Australia/South		9:30	Oz	CST
 # Zone	Australia/Victoria	10:00	Oz	EST	1985 Oct lastSun 2:00
-#				10:00	1:00	EST	1986 Mar Sun<=21 3:00
+#				10:00	1:00	EST	1986 Mar Sun>=15 3:00
 #				10:00	Oz	EST
 
 # From Robert Elz (1991-03-06):
@@ -875,7 +875,7 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # ...
 # Rule	 AS	1971	max	-	Oct	lastSun	2:00	1:00	D
 # Rule	 AS	1972	1985	-	Mar	Sun>=1	3:00	0	C
-# Rule	 AS	1986	1990	-	Mar	Sun<=21	3:00	0	C
+# Rule	 AS	1986	1990	-	Mar	Sun>=15	3:00	0	C
 # Rule	 AS	1991	max	-	Mar	Sun>=1	3:00	0	C
 
 # From Bradley White (1992-03-11):
@@ -1068,9 +1068,9 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # shown on clocks on LHI. I guess this means that for 30 minutes at the start
 # of DST, LHI is actually 1 hour ahead of the rest of NSW.
 
-# From Paul Eggert (2001-02-09):
-# For Lord Howe dates we use Shanks through 1989, and Lonergan thereafter.
-# For times we use Lonergan.
+# From Paul Eggert (2006-03-22):
+# For Lord Howe dates we use Shanks & Pottenger through 1989, and
+# Lonergan thereafter.  For times we use Lonergan.
 
 ###############################################################################
 
@@ -1101,16 +1101,16 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # rather than the October 1 value.
 
 # From Paul Eggert (1995-12-19);
-# Shanks reports 2:00 for all autumn changes in Australia and New Zealand.
+# Shank & Pottenger report 2:00 for all autumn changes in Australia and NZ.
 # Robert Uzgalis writes that the New Zealand Daylight
 # Savings Time Order in Council dated 1990-06-18 specifies 2:00 standard
 # time on both the first Sunday in October and the third Sunday in March.
 # As with Australia, we'll assume the tradition is 2:00s, not 2:00.
 #
-# From Paul Eggert (2003-05-26):
+# From Paul Eggert (2006-03-22):
 # The Department of Internal Affairs (DIA) maintains a brief history,
 # as does Carol Squires; see tz-link.htm for the full references.
-# Use these sources in preference to Shanks.
+# Use these sources in preference to Shanks & Pottenger.
 #
 # For Chatham, IATA SSIM (1991/1999) gives the NZ rules but with
 # transitions at 2:45 local standard time; this confirms that Chatham
@@ -1185,8 +1185,8 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # ``I am certain, having lived there for the past decade, that "Truk"
 # (now properly known as Chuuk) ... is in the time zone GMT+10.''
 #
-# Shanks writes that Truk switched from UTC+10 to UTC+11 on 1978-10-01;
-# ignore this for now.
+# Shanks & Pottenger write that Truk switched from UTC+10 to UTC+11
+# on 1978-10-01; ignore this for now.
 
 # From Paul Eggert (1999-10-29):
 # The Federated States of Micronesia Visitors Board writes in
@@ -1279,8 +1279,8 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # on the World Day of Prayer, you would be the first people on Earth
 # to say your prayers in the morning."
 
-# From Paul Eggert (1999-08-12):
-# Shanks says the transition was on 1968-10-01; go with Mundell.
+# From Paul Eggert (2006-03-22):
+# Shanks & Pottenger say the transition was on 1968-10-01; go with Mundell.
 
 # From Eric Ulevik (1999-05-03):
 # Tonga's director of tourism, who is also secretary of the National Millenium
diff --git a/share/zoneinfo/backward b/share/zoneinfo/backward
index 4ddfe41e9993..66fbf3061889 100644
--- a/share/zoneinfo/backward
+++ b/share/zoneinfo/backward
@@ -1,4 +1,4 @@
-# @(#)backward	7.30
+# @(#)backward	8.1
 
 # This file provides links between current names for time zones
 # and their old names.  Many names changed in late 1993.
diff --git a/share/zoneinfo/etcetera b/share/zoneinfo/etcetera
index 431206ec3d20..cddbe8a294e6 100644
--- a/share/zoneinfo/etcetera
+++ b/share/zoneinfo/etcetera
@@ -1,4 +1,4 @@
-# @(#)etcetera	7.12
+# @(#)etcetera	8.1
 
 # These entries are mostly present for historical reasons, so that
 # people in areas not otherwise covered by the tz files could "zic -l"
diff --git a/share/zoneinfo/europe b/share/zoneinfo/europe
index 8782860e86a2..3a0ae107ff24 100644
--- a/share/zoneinfo/europe
+++ b/share/zoneinfo/europe
@@ -1,14 +1,14 @@
-# @(#)europe	7.96
+# @(#)europe	8.3
 # 
 
 # 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
 # tz@elsie.nci.nih.gov for general use in the future).
 
-# From Paul Eggert (1999-10-29):
+# From Paul Eggert (2006-03-22):
 # A good source for time zone historical data outside the U.S. is
-# Thomas G. Shanks, The International Atlas (5th edition),
-# San Diego: ACS Publications, Inc. (1999).
+# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
+# San Diego: ACS Publications, Inc. (2003).
 #
 # Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
@@ -16,8 +16,8 @@
 # published semiannually.  Law sent in several helpful summaries
 # of the IATA's data after 1990.
 #
-# Except where otherwise noted, Shanks is the source for entries through 1991,
-# and IATA SSIM is the source for entries afterwards.
+# Except where otherwise noted, Shanks & Pottenger is the source for
+# entries through 1991, and IATA SSIM is the source for entries afterwards.
 #
 # Other sources occasionally used include:
 #
@@ -221,11 +221,12 @@
 # (Lords Hansard 11 June 1997 columns 964 to 976)
 # .
 
-# From Paul Eggert (2001-07-18):
+# From Paul Eggert (2006-03-22):
 #
-# For lack of other data, we'll follow Shanks for Eire in 1940-1948.
+# For lack of other data, follow Shanks & Pottenger for Eire in 1940-1948.
 #
-# Given Ilieve and Myers's data, the following claims by Shanks are incorrect:
+# Given Ilieve and Myers's data, the following claims by Shanks & Pottenger
+# are incorrect:
 #     * Wales did not switch from GMT to daylight saving time until
 #	1921 Apr 3, when they began to conform with the rest of Great Britain.
 # Actually, Wales was identical after 1880.
@@ -237,18 +238,19 @@
 # Actually, that date saw the usual switch to summer time.
 # Standard time was not changed until 1968-10-27 (the clocks didn't change).
 #
-# Here is another incorrect claim by Shanks:
+# Here is another incorrect claim by Shanks & Pottenger:
 #     * Jersey, Guernsey, and the Isle of Man did not switch from GMT
 #	to daylight saving time until 1921 Apr 3, when they began to
 #	conform with Great Britain.
 # S.R.&O. 1916, No. 382 and HO 45/10811/312364 (quoted above) say otherwise.
 #
-# The following claim by Shanks is possible though doubtful;
+# The following claim by Shanks & Pottenger is possible though doubtful;
 # we'll ignore it for now.
 #     * Dublin's 1971-10-31 switch was at 02:00, even though London's was 03:00.
 #
 #
-# Whitman says Dublin Mean Time was -0:25:21, which is more precise than Shanks.
+# Whitman says Dublin Mean Time was -0:25:21, which is more precise than
+# Shanks & Pottenger.
 # 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:
@@ -418,7 +420,7 @@ Rule	GB-Eire 1990	1995	-	Oct	Sun>=22	1:00u	0	GMT
 # See EU for rules starting in 1996.
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Europe/London	-0:01:15 -	LMT	1847 Dec  1
+Zone	Europe/London	-0:01:15 -	LMT	1847 Dec  1 0:00s
 			 0:00	GB-Eire	%s	1968 Oct 27
 			 1:00	-	BST	1971 Oct 31 2:00u
 			 0:00	GB-Eire	%s	1996
@@ -476,7 +478,7 @@ Rule	C-Eur	1942	only	-	Nov	 2	 2:00s	0	-
 Rule	C-Eur	1943	only	-	Mar	29	 2:00s	1:00	S
 Rule	C-Eur	1943	only	-	Oct	 4	 2:00s	0	-
 Rule	C-Eur	1944	only	-	Apr	 3	 2:00s	1:00	S
-# Whitman gives 1944 Oct 7; go with Shanks.
+# Whitman gives 1944 Oct 7; go with Shanks & Pottenger.
 Rule	C-Eur	1944	only	-	Oct	 2	 2:00s	0	-
 Rule	C-Eur	1977	1980	-	Apr	Sun>=1	 2:00s	1:00	S
 Rule	C-Eur	1977	only	-	Sep	lastSun	 2:00s	0	-
@@ -596,12 +598,12 @@ Zone	Europe/Andorra	0:06:04 -	LMT	1901
 
 # Austria
 
-# From Paul Eggert (2003-02-28): Shanks gives 1918-06-16 and
+# From Paul Eggert (2006-03-22): Shanks & Pottenger give 1918-06-16 and
 # 1945-11-18, but the Austrian Federal Office of Metrology and
 # Surveying (BEV) gives 1918-09-16 and for Vienna gives the "alleged"
 # date of 1945-04-12 with no time.  For the 1980-04-06 transition
-# Shanks gives 02:00, the BEV 00:00.  Go with the BEV, and guess 02:00
-# for 1945-04-12.
+# Shanks & Pottenger give 02:00, the BEV 00:00.  Go with the BEV,
+# and guess 02:00 for 1945-04-12.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Austria	1920	only	-	Apr	 5	2:00s	1:00	S
@@ -713,7 +715,7 @@ Zone	Europe/Brussels	0:17:30 -	LMT	1880
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Bulg	1979	only	-	Mar	31	23:00	1:00	S
 Rule	Bulg	1979	only	-	Oct	 1	 1:00	0	-
-Rule	Bulg	1980	1982	-	Apr	Sat<=7	23:00	1:00	S
+Rule	Bulg	1980	1982	-	Apr	Sat>=1	23:00	1:00	S
 Rule	Bulg	1980	only	-	Sep	29	 1:00	0	-
 Rule	Bulg	1981	only	-	Sep	27	 2:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -813,10 +815,10 @@ Zone Atlantic/Faeroe	-0:27:04 -	LMT	1908 Jan 11	# Torshavn
 # East Greenland and Franz Josef Land, but we don't know their time zones.
 # My source for this is Wilhelm Dege's book mentioned under Svalbard.
 #
-# From Paul Eggert (1996-11-22):
+# From Paul Eggert (2006-03-22):
 # Greenland joined the EU as part of Denmark, obtained home rule on 1979-05-01,
 # and left the EU on 1985-02-01.  It therefore should have been using EU
-# rules at least through 1984.  Shanks says Scoresbysund and Godthab
+# rules at least through 1984.  Shanks & Pottenger say Scoresbysund and Godthab
 # 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.
 
@@ -871,17 +873,21 @@ Zone Atlantic/Faeroe	-0:27:04 -	LMT	1908 Jan 11	# Torshavn
 # I heard back from someone stationed at Thule; the time change took place
 # there at 2:00 AM.
 
-# From Paul Eggert (2001-11-19):
-# The 1997 CIA map shows Danmarkshavn on GMT; the 1995 map as like Godthab.
+# From Paul Eggert (2006-03-22):
+# From 1997 on the CIA map shows Danmarkshavn on GMT;
+# the 1995 map as like Godthab.
 # For lack of better info, assume they were like Godthab before 1996.
 # startkart.no says Thule does not observe DST, but this is clearly an error,
-# so go with Shanks for all Thule transitions.
+# so go with Shanks & Pottenger for Thule transitions until this year.
+# For 2007 on assume Thule will stay in sync with US DST rules.
 #
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Thule	1991	1992	-	Mar	lastSun	2:00	1:00	D
 Rule	Thule	1991	1992	-	Sep	lastSun	2:00	0	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	2006	-	Apr	Sun>=1	2:00	1:00	D
+Rule	Thule	1993	2006	-	Oct	lastSun	2:00	0	S
+Rule	Thule	2007	max	-	Mar	Sun>=8	2:00	1:00	D
+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
@@ -963,13 +969,13 @@ Zone	Europe/Tallinn	1:39:00	-	LMT	1880
 
 # Finland
 #
-# From Hannu Strang (25 Sep 1994 06:03:37 UTC):
+# From Hannu Strang (1994-09-25 06:03:37 UTC):
 # Well, here in Helsinki we're just changing from summer time to regular one,
 # and it's supposed to change at 4am...
 #
-# From Paul Eggert (25 Sep 1994):
-# Shanks says Finland has switched at 02:00 standard time since 1981.
-# Go with Strang instead.
+# From Paul Eggert (2006-03-22):
+# Shanks & Pottenger say Finland has switched at 02:00 standard time
+# since 1981.  Go with Strang instead.
 #
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Finland	1942	only	-	Apr	3	0:00	1:00	S
@@ -999,7 +1005,7 @@ Link	Europe/Helsinki	Europe/Mariehamn
 
 
 #
-# Shanks seems to use `24:00' ambiguously; we resolve it with Whitman.
+# Shank & Pottenger seem to use `24:00' ambiguously; resolve it with Whitman.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	France	1916	only	-	Jun	14	23:00s	1:00	S
 Rule	France	1916	1919	-	Oct	Sun>=1	23:00s	0	-
@@ -1013,7 +1019,7 @@ Rule	France	1921	only	-	Oct	25	23:00s	0	-
 Rule	France	1922	only	-	Mar	25	23:00s	1:00	S
 # DSH writes that a law of 1923-05-24 specified 3rd Sat in Apr at 23:00 to 1st
 # Sat in Oct at 24:00; and that in 1930, because of Easter, the transitions
-# were Apr 12 and Oct 5.  Go with Shanks.
+# were Apr 12 and Oct 5.  Go with Shanks & Pottenger.
 Rule	France	1922	1938	-	Oct	Sat>=1	23:00s	0	-
 Rule	France	1923	only	-	May	26	23:00s	1:00	S
 Rule	France	1924	only	-	Mar	29	23:00s	1:00	S
@@ -1034,8 +1040,8 @@ Rule	France	1938	only	-	Mar	26	23:00s	1:00	S
 Rule	France	1939	only	-	Apr	15	23:00s	1:00	S
 Rule	France	1939	only	-	Nov	18	23:00s	0	-
 Rule	France	1940	only	-	Feb	25	 2:00	1:00	S
-# The French rules for 1941-1944 were not used in Paris, but Shanks writes
-# that they were used in Monaco and in many French locations.
+# The French rules for 1941-1944 were not used in Paris, but Shanks & Pottenger
+# write that they were used in Monaco and in many French locations.
 # Le Corre writes that the upper limit of the free zone was Arneguy, Orthez,
 # Mont-de-Marsan, Bazas, Langon, Lamotte-Montravel, Marouil, La
 # Rochefoucault, Champagne-Mouton, La Roche-Posay, La Haye-Decartes,
@@ -1043,7 +1049,7 @@ Rule	France	1940	only	-	Feb	25	 2:00	1:00	S
 # Paray-le-Monial, Montceau-les-Mines, Chalons-sur-Saone, Arbois,
 # Dole, Morez, St-Claude, and Collognes (Haute-Savioe).
 Rule	France	1941	only	-	May	 5	 0:00	2:00	M # Midsummer
-# Shanks says this transition occurred at Oct 6 1:00,
+# Shanks & Pottenger say this transition occurred at Oct 6 1:00,
 # but go with Denis Excoffier (1997-12-12),
 # who quotes the Ephemerides Astronomiques for 1998 from Bureau des Longitudes
 # as saying 5/10/41 22hUT.
@@ -1056,21 +1062,21 @@ Rule	France	1944	only	-	Apr	 3	 2:00	2:00	M
 Rule	France	1944	only	-	Oct	 8	 1:00	1:00	S
 Rule	France	1945	only	-	Apr	 2	 2:00	2:00	M
 Rule	France	1945	only	-	Sep	16	 3:00	0	-
-# Shanks gives Mar 28 2:00 and Sep 26 3:00;
+# Shanks & Pottenger give Mar 28 2:00 and Sep 26 3:00;
 # go with Excoffier's 28/3/76 0hUT and 25/9/76 23hUT.
 Rule	France	1976	only	-	Mar	28	 1:00	1:00	S
 Rule	France	1976	only	-	Sep	26	 1:00	0	-
-# Shanks gives 0:09 for Paris Mean Time, and Whitman gives 0:09:05,
+# Shanks & Pottenger give 0:09:20 for Paris Mean Time, and Whitman 0:09:05,
 # but Howse quotes the actual French legislation as saying 0:09:21.
 # Go with Howse.  Howse writes that the time in France was officially based
 # on PMT-0:09:21 until 1978-08-09, when the time base finally switched to UTC.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Europe/Paris	0:09:21 -	LMT	1891 Mar 15  0:01
 			0:09:21	-	PMT	1911 Mar 11  0:01  # Paris MT
-# Shanks gives 1940 Jun 14 0:00; go with Excoffier and Le Corre.
+# Shanks & Pottenger give 1940 Jun 14 0:00; go with Excoffier and Le Corre.
 			0:00	France	WE%sT	1940 Jun 14 23:00
 # Le Corre says Paris stuck with occupied-France time after the liberation;
-# go with Shanks.
+# go with Shanks & Pottenger.
 			1:00	C-Eur	CE%sT	1944 Aug 25
 			0:00	France	WE%sT	1945 Sep 16  3:00
 			1:00	France	CE%sT	1977
@@ -1121,23 +1127,23 @@ Zone	Europe/Berlin	0:53:28 -	LMT	1893 Apr
 
 # Gibraltar
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Europe/Gibraltar	-0:21:24 -	LMT	1880 Aug  2
+Zone Europe/Gibraltar	-0:21:24 -	LMT	1880 Aug  2 0:00s
 			0:00	GB-Eire	%s	1957 Apr 14 2:00
 			1:00	-	CET	1982
 			1:00	EU	CE%sT
 
 # Greece
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-# Whitman gives 1932 Jul 5 - Nov 1; go with Shanks.
+# Whitman gives 1932 Jul 5 - Nov 1; go with Shanks & Pottenger.
 Rule	Greece	1932	only	-	Jul	 7	0:00	1:00	S
 Rule	Greece	1932	only	-	Sep	 1	0:00	0	-
-# Whitman gives 1941 Apr 25 - ?; go with Shanks.
+# Whitman gives 1941 Apr 25 - ?; go with Shanks & Pottenger.
 Rule	Greece	1941	only	-	Apr	 7	0:00	1:00	S
-# Whitman gives 1942 Feb 2 - ?; go with Shanks.
+# Whitman gives 1942 Feb 2 - ?; go with Shanks & Pottenger.
 Rule	Greece	1942	only	-	Nov	 2	3:00	0	-
 Rule	Greece	1943	only	-	Mar	30	0:00	1:00	S
 Rule	Greece	1943	only	-	Oct	 4	0:00	0	-
-# Whitman gives 1944 Oct 3 - Oct 31; go with Shanks.
+# Whitman gives 1944 Oct 3 - Oct 31; go with Shanks & Pottenger.
 Rule	Greece	1952	only	-	Jul	 1	0:00	1:00	S
 Rule	Greece	1952	only	-	Nov	 2	0:00	0	-
 Rule	Greece	1975	only	-	Apr	12	0:00s	1:00	S
@@ -1157,7 +1163,7 @@ Zone	Europe/Athens	1:34:52 -	LMT	1895 Sep 14
 			2:00	Greece	EE%sT	1941 Apr 30
 			1:00	Greece	CE%sT	1944 Apr  4
 			2:00	Greece	EE%sT	1981
-			# Shanks says they switched to C-Eur in 1981;
+			# Shanks & Pottenger say it switched to C-Eur in 1981;
 			# go with EU instead, since Greece joined it on Jan 1.
 			2:00	EU	EE%sT
 
@@ -1220,10 +1226,10 @@ Zone	Europe/Budapest	1:16:20 -	LMT	1890 Oct
 # might be a reference to the Julian calendar as opposed to Gregorian, or it
 # might mean something else (???).
 #
-# From Paul Eggert (1999-10-29):
-# The Iceland Almanak, Shanks and Whitman disagree on many points.
-# We go with the Almanak, except for one claim from Shanks, namely that
-# Reykavik was 21W57 from 1837 to 1908, local mean time before that.
+# From Paul Eggert (2006-03-22):
+# The Iceland Almanak, Shanks & Pottenger, and Whitman disagree on many points.
+# We go with the Almanak, except for one claim from Shanks & Pottenger, namely
+# that Reykavik was 21W57 from 1837 to 1908, local mean time before that.
 #
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Iceland	1917	1918	-	Feb	19	23:00	1:00	S
@@ -1261,15 +1267,16 @@ Zone Atlantic/Reykjavik	-1:27:24 -	LMT	1837
 # But these events all occurred before the 1970 cutoff,
 # so record only the time in Rome.
 #
-# From Paul Eggert (1996-05-06):
-# For Italian DST we have three sources: Shanks, Whitman, and F. Pollastri
+# From Paul Eggert (2006-03-22):
+# For Italian DST we have three sources: Shanks & Pottenger, Whitman, and
+# F. Pollastri
 # 
-# Day-light Saving Time in Italy (1996-03-14)
+# Day-light Saving Time in Italy (2006-02-03)
 # 
 # (`FP' below), taken from an Italian National Electrotechnical Institute
 # publication. When the three sources disagree, guess who's right, as follows:
 #
-# year	FP	Shanks (S)	Whitman (W)	Go with:
+# year	FP	Shanks&P. (S)	Whitman (W)	Go with:
 # 1916	06-03	06-03 24:00	06-03 00:00	FP & W
 #	09-30	09-30 24:00	09-30 01:00	FP; guess 24:00s
 # 1917	04-01	03-31 24:00	03-31 00:00	FP & S
@@ -1325,7 +1332,7 @@ Rule	Italy	1978	only	-	Oct	 1	0:00s	0	-
 Rule	Italy	1979	only	-	Sep	30	0:00s	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Europe/Rome	0:49:56 -	LMT	1866 Sep 22
-			0:49:56	-	RMT	1893 Nov	# Rome Mean Time
+			0:49:56	-	RMT	1893 Nov  1 0:00s # Rome Mean
 			1:00	Italy	CE%sT	1942 Nov  2 2:00s
 			1:00	C-Eur	CE%sT	1944 Jul
 			1:00	Italy	CE%sT	1980
@@ -1467,7 +1474,8 @@ Zone	Europe/Vilnius	1:41:16	-	LMT	1880
 			2:00	EU	EE%sT
 
 # Luxembourg
-# Whitman disagrees with most of these dates in minor ways; go with Shanks.
+# Whitman disagrees with most of these dates in minor ways;
+# go with Shanks & Pottenger.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Lux	1916	only	-	May	14	23:00	1:00	S
 Rule	Lux	1916	only	-	Oct	 1	 1:00	0	-
@@ -1514,7 +1522,7 @@ Rule	Malta	1975	1979	-	Apr	Sun>=15	2:00	1:00	S
 Rule	Malta	1975	1980	-	Sep	Sun>=15	2:00	0	-
 Rule	Malta	1980	only	-	Mar	31	2:00	1:00	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Europe/Malta	0:58:04 -	LMT	1893 Nov  2	# Valletta
+Zone	Europe/Malta	0:58:04 -	LMT	1893 Nov  2 0:00s # Valletta
 			1:00	Italy	CE%sT	1942 Nov  2 2:00s
 			1:00	C-Eur	CE%sT	1945 Apr  2 2:00s
 			1:00	Italy	CE%sT	1973 Mar 31
@@ -1523,9 +1531,9 @@ Zone	Europe/Malta	0:58:04 -	LMT	1893 Nov  2	# Valletta
 
 # Moldova
 
-# From Paul Eggert (2001-02-11):
-# A previous version of this database followed Shanks, who writes that
-# Tiraspol switched to Moscow time on 1992-01-19 at 02:00.
+# From Paul Eggert (2006-03-22):
+# A previous version of this database followed Shanks & Pottenger, who write
+# that Tiraspol switched to Moscow time on 1992-01-19 at 02:00.
 # However, this is most likely an error, as Moldova declared independence
 # on 1991-08-27 (the 1992-01-19 date is that of a Russian decree).
 # In early 1992 there was large-scale interethnic violence in the area
@@ -1550,7 +1558,8 @@ Zone	Europe/Chisinau	1:55:20 -	LMT	1880
 			2:00	EU	EE%sT
 
 # Monaco
-# Shanks gives 0:09 for Paris Mean Time; go with Howse's more precise 0:09:21.
+# Shanks & Pottenger give 0:09:20 for Paris Mean Time; go with Howse's
+# more precise 0:09:21.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Europe/Monaco	0:29:32 -	LMT	1891 Mar 15
 			0:09:21	-	PMT	1911 Mar 11    # Paris Mean Time
@@ -1633,7 +1642,8 @@ Zone Europe/Amsterdam	0:19:32 -	LMT	1835
 			1:00	EU	CE%sT
 
 # Norway
-# http://met.no/met/met_lex/q_u/sommertid.html (2004-01) agrees with Shanks.
+# http://met.no/met/met_lex/q_u/sommertid.html (2004-01) agrees with Shanks &
+# Pottenger.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Norway	1916	only	-	May	22	1:00	1:00	S
 Rule	Norway	1916	only	-	Sep	30	0:00	0	-
@@ -1704,9 +1714,10 @@ Link	Europe/Oslo	Atlantic/Jan_Mayen
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Poland	1918	1919	-	Sep	16	2:00s	0	-
 Rule	Poland	1919	only	-	Apr	15	2:00s	1:00	S
-# Whitman gives 1944 Nov 30; go with Shanks.
+Rule	Poland	1944	only	-	Apr	 3	2:00s	1:00	S
+# Whitman gives 1944 Nov 30; go with Shanks & Pottenger.
 Rule	Poland	1944	only	-	Oct	 4	2:00	0	-
-# For 1944-1948 Whitman gives the previous day; go with Shanks.
+# For 1944-1948 Whitman gives the previous day; go with Shanks & Pottenger.
 Rule	Poland	1945	only	-	Apr	29	0:00	1:00	S
 Rule	Poland	1945	only	-	Nov	 1	0:00	0	-
 # For 1946 on the source is Kazimierz Borkowski,
@@ -1762,9 +1773,9 @@ Zone	Europe/Warsaw	1:24:00 -	LMT	1880
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 # DSH writes that despite Decree 1,469 (1915), the change to the clocks was not
 # done every year, depending on what Spain did, because of railroad schedules.
-# Go with Shanks.
+# Go with Shanks & Pottenger.
 Rule	Port	1916	only	-	Jun	17	23:00	1:00	S
-# Whitman gives 1916 Oct 31; go with Shanks.
+# Whitman gives 1916 Oct 31; go with Shanks & Pottenger.
 Rule	Port	1916	only	-	Nov	 1	 1:00	0	-
 Rule	Port	1917	only	-	Feb	28	23:00s	1:00	S
 Rule	Port	1917	1921	-	Oct	14	23:00s	0	-
@@ -1780,24 +1791,23 @@ Rule	Port	1927	only	-	Apr	 9	23:00s	1:00	S
 Rule	Port	1928	only	-	Apr	14	23:00s	1:00	S
 Rule	Port	1929	only	-	Apr	20	23:00s	1:00	S
 Rule	Port	1931	only	-	Apr	18	23:00s	1:00	S
-# Whitman gives 1931 Oct 8; go with Shanks.
+# Whitman gives 1931 Oct 8; go with Shanks & Pottenger.
 Rule	Port	1931	1932	-	Oct	Sat>=1	23:00s	0	-
 Rule	Port	1932	only	-	Apr	 2	23:00s	1:00	S
-# Shanks gives 1934 Apr 4; go with Whitman.
 Rule	Port	1934	only	-	Apr	 7	23:00s	1:00	S
-# Whitman gives 1934 Oct 5; go with Shanks.
+# Whitman gives 1934 Oct 5; go with Shanks & Pottenger.
 Rule	Port	1934	1938	-	Oct	Sat>=1	23:00s	0	-
-# Shanks gives 1935 Apr 30; go with Whitman.
+# Shanks & Pottenger give 1935 Apr 30; go with Whitman.
 Rule	Port	1935	only	-	Mar	30	23:00s	1:00	S
 Rule	Port	1936	only	-	Apr	18	23:00s	1:00	S
-# Whitman gives 1937 Apr 2; go with Shanks.
+# Whitman gives 1937 Apr 2; go with Shanks & Pottenger.
 Rule	Port	1937	only	-	Apr	 3	23:00s	1:00	S
 Rule	Port	1938	only	-	Mar	26	23:00s	1:00	S
 Rule	Port	1939	only	-	Apr	15	23:00s	1:00	S
-# Whitman gives 1939 Oct 7; go with Shanks.
+# Whitman gives 1939 Oct 7; go with Shanks & Pottenger.
 Rule	Port	1939	only	-	Nov	18	23:00s	0	-
 Rule	Port	1940	only	-	Feb	24	23:00s	1:00	S
-# Shanks gives 1940 Oct 7; go with Whitman.
+# Shanks & Pottenger give 1940 Oct 7; go with Whitman.
 Rule	Port	1940	1941	-	Oct	 5	23:00s	0	-
 Rule	Port	1941	only	-	Apr	 5	23:00s	1:00	S
 Rule	Port	1942	1945	-	Mar	Sat>=8	23:00s	1:00	S
@@ -1811,8 +1821,8 @@ Rule	Port	1946	only	-	Apr	Sat>=1	23:00s	1:00	S
 Rule	Port	1946	only	-	Oct	Sat>=1	23:00s	0	-
 Rule	Port	1947	1949	-	Apr	Sun>=1	 2:00s	1:00	S
 Rule	Port	1947	1949	-	Oct	Sun>=1	 2:00s	0	-
-# Shanks says DST was observed in 1950; go with Whitman.
-# Whitman gives Oct lastSun for 1952 on; go with Shanks.
+# Shanks & Pottenger say DST was observed in 1950; go with Whitman.
+# Whitman gives Oct lastSun for 1952 on; go with Shanks & Pottenger.
 Rule	Port	1951	1965	-	Apr	Sun>=1	 2:00s	1:00	S
 Rule	Port	1951	1965	-	Oct	Sun>=1	 2:00s	0	-
 Rule	Port	1977	only	-	Mar	27	 0:00s	1:00	S
@@ -1824,7 +1834,7 @@ Rule	Port	1980	only	-	Mar	lastSun	 0:00s	1:00	S
 Rule	Port	1981	1982	-	Mar	lastSun	 1:00s	1:00	S
 Rule	Port	1983	only	-	Mar	lastSun	 2:00s	1:00	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-# Shanks says that the transition from LMT to WET occurred 1911-05-24;
+# Shanks & Pottenger say the transition from LMT to WET occurred 1911-05-24;
 # Willett says 1912-01-01.  Go with Willett.
 Zone	Europe/Lisbon	-0:36:32 -	LMT	1884
 			-0:36:32 -	LMT	1912 Jan  1  # Lisbon Mean Time
@@ -1877,11 +1887,12 @@ Zone Europe/Bucharest	1:44:24 -	LMT	1891 Oct
 
 # Russia
 
-# From Paul Eggert (1999-11-12):
+# From Paul Eggert (2006-03-22):
 # Except for Moscow after 1919-07-01, I invented the time zone abbreviations.
 # Moscow time zone abbreviations after 1919-07-01, and Moscow rules after 1991,
-# 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.
+# are from Andrey A. Chernov.  The rest is from Shanks & Pottenger,
+# except we follow Chernov's report that 1992 DST transitions were Sat
+# 23:00, not Sun 02:00s.
 #
 # From Stanislaw A. Kuzikowski (1994-06-29):
 # But now it is some months since Novosibirsk is 3 hours ahead of Moscow!
@@ -1989,7 +2000,7 @@ 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
+			 7:00	Russia	NOV%sT	1993 May 23 # say Shanks & P.
 			 6:00	Russia	NOV%sT
 #
 # From Oscar van Vlijmen (2001-08-25): [This region consists of]
@@ -2085,7 +2096,7 @@ Zone	Europe/Belgrade	1:22:00	-	LMT	1884
 			1:00	1:00	CEST	1945 Sep 16  2:00s
 # Metod Kozelj reports that the legal date of
 # transition to EU rules was 1982-11-27, for all of Yugoslavia at the time.
-# Shanks doesn't give as much detail, so go with Kozelj.
+# Shanks & Pottenger don't give as much detail, so go with Kozelj.
 			1:00	-	CET	1982 Nov 27
 			1:00	EU	CE%sT
 Link Europe/Belgrade Europe/Ljubljana	# Slovenia
@@ -2101,28 +2112,30 @@ Link Europe/Prague Europe/Bratislava
 
 # Spain
 # 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.
+# 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.
+# 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.
+# 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.
+# 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.
+# 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.
+# 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
@@ -2149,7 +2162,7 @@ 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
+Zone	Europe/Madrid	-0:14:44 -	LMT	1901 Jan  1  0:00s
 			 0:00	Spain	WE%sT	1946 Sep 30
 			 1:00	Spain	CE%sT	1979
 			 1:00	EU	CE%sT
@@ -2171,7 +2184,7 @@ Zone	Atlantic/Canary	-1:01:36 -	LMT	1922 Mar # Las Palmas de Gran C.
 
 # Sweden
 
-# From Ivan Nilsson (2001-04-13), superseding Shanks:
+# From Ivan Nilsson (2001-04-13), superseding Shanks & Pottenger:
 #
 # 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
@@ -2232,7 +2245,7 @@ Zone Europe/Stockholm	1:12:12 -	LMT	1879 Jan  1
 # From Whitman (who writes ``Midnight?''):
 Rule	Swiss	1940	only	-	Nov	 2	0:00	1:00	S
 Rule	Swiss	1940	only	-	Dec	31	0:00	0	-
-# From Shanks:
+# From Shanks & Pottenger:
 Rule	Swiss	1941	1942	-	May	Sun>=1	2:00	1:00	S
 Rule	Swiss	1941	1942	-	Oct	Sun>=1	0:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -2251,7 +2264,8 @@ Rule	Turkey	1921	only	-	Apr	 3	0:00	1:00	S
 Rule	Turkey	1921	only	-	Oct	 3	0:00	0	-
 Rule	Turkey	1922	only	-	Mar	26	0:00	1:00	S
 Rule	Turkey	1922	only	-	Oct	 8	0:00	0	-
-# Whitman gives 1923 Apr 28 - Sep 16 and no DST in 1924-1925; go with Shanks.
+# Whitman gives 1923 Apr 28 - Sep 16 and no DST in 1924-1925;
+# go with Shanks & Pottenger.
 Rule	Turkey	1924	only	-	May	13	0:00	1:00	S
 Rule	Turkey	1924	1925	-	Oct	 1	0:00	0	-
 Rule	Turkey	1925	only	-	May	 1	0:00	1:00	S
@@ -2260,7 +2274,8 @@ Rule	Turkey	1940	only	-	Oct	 5	0:00	0	-
 Rule	Turkey	1940	only	-	Dec	 1	0:00	1:00	S
 Rule	Turkey	1941	only	-	Sep	21	0:00	0	-
 Rule	Turkey	1942	only	-	Apr	 1	0:00	1:00	S
-# Whitman omits the next two transition and gives 1945 Oct 1; go with Shanks.
+# Whitman omits the next two transition and gives 1945 Oct 1;
+# go with Shanks & Pottenger.
 Rule	Turkey	1942	only	-	Nov	 1	0:00	0	-
 Rule	Turkey	1945	only	-	Apr	 2	0:00	1:00	S
 Rule	Turkey	1945	only	-	Oct	 8	0:00	0	-
@@ -2357,11 +2372,13 @@ Zone Europe/Simferopol	2:16:24 -	LMT	1880
 			3:00	Russia	MSK/MSD	1990
 			3:00	-	MSK	1990 Jul  1 2:00
 			2:00	-	EET	1992
-# From Paul Eggert (1999-11-12):
+# From Paul Eggert (2006-03-22):
 # The _Economist_ (1994-05-28, p 45) reports that central Crimea switched
 # from Kiev to Moscow time sometime after the January 1994 elections.
-# Shanks says ``date of change uncertain'', but implies that it happened
-# sometime between the 1994 DST switches.  For now, guess it changed in May.
+# Shanks (1999) says ``date of change uncertain'', but implies that it happened
+# sometime between the 1994 DST switches.  Shanks & Pottenger simply say
+# 1994-09-25 03:00, but that can't be right.  For now, guess it
+# changed in May.
 			2:00	E-Eur	EE%sT	1994 May
 # From IATA SSIM (1994/1997), which also says that Kerch is still like Kiev.
 			3:00	E-Eur	MSK/MSD	1996 Mar 31 3:00s
diff --git a/share/zoneinfo/factory b/share/zoneinfo/factory
index ba27c6326940..946063c0dd3a 100644
--- a/share/zoneinfo/factory
+++ b/share/zoneinfo/factory
@@ -1,4 +1,4 @@
-# @(#)factory	7.3
+# @(#)factory	8.1
 
 # For companies who don't want to put time zone specification in
 # their installation procedures.  When users run date, they'll get the message.
diff --git a/share/zoneinfo/iso3166.tab b/share/zoneinfo/iso3166.tab
index 07b43fc7c4bd..1cfaf265c21f 100644
--- a/share/zoneinfo/iso3166.tab
+++ b/share/zoneinfo/iso3166.tab
@@ -1,6 +1,6 @@
 # ISO 3166 alpha-2 country codes
 #
-# @(#)iso3166.tab	1.17
+# @(#)iso3166.tab	8.1
 #
 # From Paul Eggert (2004-06-14):
 #
diff --git a/share/zoneinfo/leapseconds b/share/zoneinfo/leapseconds
index a1078837d7f8..d2b506bab59d 100644
--- a/share/zoneinfo/leapseconds
+++ b/share/zoneinfo/leapseconds
@@ -1,4 +1,4 @@
-# @(#)leapseconds	7.20
+# @(#)leapseconds	8.1
 
 # Allowance for leapseconds added to each timezone file.
 
diff --git a/share/zoneinfo/northamerica b/share/zoneinfo/northamerica
index 9f9b98b09cb0..cc0ff49ae467 100644
--- a/share/zoneinfo/northamerica
+++ b/share/zoneinfo/northamerica
@@ -1,4 +1,4 @@
-# @(#)northamerica	7.87
+# @(#)northamerica	8.6
 # 
 
 # also includes Central America and the Caribbean
@@ -30,12 +30,12 @@
 # That 1883 transition occurred at 12:00 new time, not at 12:00 old time.
 # See p 46 of David Prerau, Seize the daylight, Thunder's Mouth Press (2005).
 
-# From Paul Eggert (1995-12-19):
+# From Paul Eggert (2006-03-22):
 # A good source for time zone historical data in the US is
 # Thomas G. Shanks, The American Atlas (5th edition),
 # San Diego: ACS Publications, Inc. (1991).
 # Make sure you have the errata sheet; the book is somewhat useless without it.
-# It is the source for most of the pre-1991 US and Puerto Rico entries below.
+# It is the source for most of the pre-1991 US entries below.
 
 # From Paul Eggert (2001-03-06):
 # Daylight Saving Time was first suggested as a joke by Benjamin Franklin
@@ -229,7 +229,7 @@ Zone	PST8PDT		 -8:00	US	P%sT
 # Public law 106-564 (2000-12-23) introduced the abbreviation
 # "Chamorro Standard Time" for time in Guam and the Northern Marianas.
 # See the file "australasia".
- 
+
 # From Arthur David Olson, 2005-08-09
 # The following was signed into law on 2005-08-08.
 #
@@ -274,7 +274,7 @@ Zone	PST8PDT		 -8:00	US	P%sT
 # set their watches and clocks on Eastern time."  It quotes H.H. "Bubba"
 # 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." 
+# in Columbus."
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
 Rule	NYC	1920	only	-	Mar	lastSun	2:00	1:00	D
@@ -301,6 +301,13 @@ Zone America/New_York	-4:56:02 -	LMT	1883 Nov 18 12:03:58
 # Nebraska, eastern North Dakota, Oklahoma, eastern South Dakota,
 # western Tennessee, most of Texas, Wisconsin
 
+# From Larry M. Smith (2006-04-26) re Wisconsin:
+# http://www.legis.state.wi.us/statutes/Stat0175.pdf ...
+# is currently enforced at the 01:00 time of change.  Because the local
+# "bar time" in the state corresponds to 02:00, a number of citations
+# are issued for the "sale of class 'B' alcohol after prohibited
+# hours" within the deviated hour of this change every year....
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
 Rule	Chicago	1920	only	-	Jun	13	2:00	1:00	D
 Rule	Chicago	1920	1921	-	Oct	lastSun	2:00	0	S
@@ -321,6 +328,16 @@ Zone America/Chicago	-5:50:36 -	LMT	1883 Nov 18 12:09:24
 Zone America/North_Dakota/Center -6:45:12 - LMT	1883 Nov 18 12:14:48
 			-7:00	US	M%sT	1992 Oct 25 02:00
 			-6:00	US	C%sT
+# Morton County, ND, switched from mountain to central time on
+# 2003-10-26, except for the area around Mandan which was already central time.
+# See .
+# Officially this switch also included part of Sioux County, and
+# Jones, Mellette, and Todd Counties in South Dakota;
+# but in practice these other counties were already observing central time.
+# See .
+Zone America/North_Dakota/New_Salem -6:45:39 - LMT 1883 Nov 18 12:14:21
+			-7:00	US	M%sT	2003 Oct 26 02:00
+			-6:00	US	C%sT
 
 # US mountain time, represented by Denver
 #
@@ -399,7 +416,8 @@ Zone America/Yakutat	 14:41:05 -	LMT	1867 Oct 18
 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 1946
+			-10:00	US	CAT/CAWT 1945 Aug 14 23:00u
+			-10:00	US	CAT/CAPT 1946 # Peace
 			-10:00	-	CAT	1967 Apr
 			-10:00	-	AHST	1969
 			-10:00	US	AH%sT	1983 Oct 30 2:00
@@ -519,9 +537,9 @@ Zone America/Boise	-7:44:49 -	LMT	1883 Nov 18 12:15:11
 # For a map of Indiana's time zone regions, see:
 # 
 # What time is it in Indiana?
-#  (2005-05-03)
+#  (2006-03-01)
 #
-# From Paul Eggert (2005-08-22):
+# From Paul Eggert (2006-03-22):
 # Since 1970, most of Indiana has been like America/Indiana/Indianapolis,
 # with the following exceptions:
 #
@@ -533,11 +551,15 @@ Zone America/Boise	-7:44:49 -	LMT	1883 Nov 18 12:15:11
 # - Clark, Floyd, and Harrison counties have been like
 #   America/Kentucky/Louisville.
 #
-# - Crawford, Starke, and Switzerland counties have their own time zone
+# - Daviess, Dubois, Knox, Martin, Perry, and Pulaski counties
+#   have been like America/Indiana/Vincennes.
+#
+# - Crawford, Pike, Starke, and Switzerland counties have their own time zone
 #   histories as noted below.
 #
-# Shanks partitions Indiana into 345 regions, each with its own time history,
-# and writes ``Even newspaper reports present contradictory information.''
+# Shanks partitioned Indiana into 345 regions, each with its own time history,
+# and wrote ``Even newspaper reports present contradictory information.''
+# Those Hoosiers!  Such a flighty and changeable people!
 # Fortunately, most of the complexity occurred before our cutoff date of 1970.
 #
 # Other than Indianapolis, the Indiana place names are so nondescript
@@ -545,11 +567,21 @@ Zone America/Boise	-7:44:49 -	LMT	1883 Nov 18 12:15:11
 # So we reluctantly put them all in a subdirectory `America/Indiana'.
 
 # From Paul Eggert (2005-08-16):
-# http://www.mccsc.edu/time.html says that Indiana will use DST starting 2006,
-# and that many counties may switch either to Central or to Eastern time.
-# The county-by-county decisions have not been made yet, so for now assume
-# that no counties will switch: this assumption is most likely wrong,
-# but it's the best we can do for now.
+# http://www.mccsc.edu/time.html says that Indiana will use DST starting 2006.
+
+# From Nathan Stratton Treadway (2006-03-30):
+# http://www.dot.gov/affairs/dot0406.htm [3705 B]
+# From Deborah Goldsmith (2006-01-18):
+# http://dmses.dot.gov/docimages/pdf95/382329_web.pdf [2.9 MB]
+# From Paul Eggert (2006-01-20):
+# It says "DOT is relocating the time zone boundary in Indiana to move Starke,
+# Pulaski, Knox, Daviess, Martin, Pike, Dubois, and Perry Counties from the
+# Eastern Time Zone to the Central Time Zone.... The effective date of
+# this rule is 2:OO a.m. EST Sunday, April 2, 2006, which is the
+# changeover date from standard time to Daylight Saving Time."
+# Strictly speaking, this means the affected counties will change their
+# clocks twice that night, but this obviously is in error.  The intent
+# is that 01:59:59 EST be followed by 02:00:00 CDT.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
 Rule Indianapolis 1941	only	-	Jun	22	2:00	1:00	D
@@ -568,8 +600,8 @@ Zone America/Indiana/Indianapolis -5:44:38 - LMT 1883 Nov 18 12:15:22
 			-5:00	-	EST	2006
 			-5:00	US	E%sT
 #
-# Part of Crawford County, Indiana, last observed DST in 1975,
-# and left its clocks alone in 1974.
+# Eastern Crawford County, Indiana, left its clocks alone in 1974,
+# as well as from 1976 through 2005.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
 Rule	Marengo	1951	only	-	Apr	lastSun	2:00	1:00	D
 Rule	Marengo	1951	only	-	Sep	lastSun	2:00	0	S
@@ -586,7 +618,45 @@ Zone America/Indiana/Marengo -5:45:23 -	LMT	1883 Nov 18 12:14:37
 			-5:00	-	EST	2006
 			-5:00	US	E%sT
 #
-# Starke County, Indiana
+# Daviess, Dubois, Knox, Martin, Perry, and Pulaski Counties, Indiana,
+# switched from eastern to central time in April 2006.
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
+Rule Vincennes	1946	only	-	Apr	lastSun	2:00	1:00	D
+Rule Vincennes	1946	only	-	Sep	lastSun	2:00	0	S
+Rule Vincennes	1953	1954	-	Apr	lastSun	2:00	1:00	D
+Rule Vincennes	1953	1959	-	Sep	lastSun	2:00	0	S
+Rule Vincennes	1955	only	-	May	 1	0:00	1:00	D
+Rule Vincennes	1956	1963	-	Apr	lastSun	2:00	1:00	D
+Rule Vincennes	1960	only	-	Oct	lastSun	2:00	0	S
+Rule Vincennes	1961	only	-	Sep	lastSun	2:00	0	S
+Rule Vincennes	1962	1963	-	Oct	lastSun	2:00	0	S
+# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
+Zone America/Indiana/Vincennes -5:50:07 - LMT	1883 Nov 18 12:09:53
+			-6:00	US	C%sT	1946
+			-6:00 Vincennes	C%sT	1964 Apr 26 2:00
+			-5:00	-	EST	1969
+			-5:00	US	E%sT	1971
+			-5:00	-	EST	2006 Apr  2 2:00
+			-6:00	US	C%sT
+#
+# Pike County, Indiana moved from central to eastern time in 1977,
+# then switched back in 2006.
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
+Rule	Pike	1955	only	-	May	 1	0:00	1:00	D
+Rule	Pike	1955	1960	-	Sep	lastSun	2:00	0	S
+Rule	Pike	1956	1964	-	Apr	lastSun	2:00	1:00	D
+Rule	Pike	1961	1964	-	Oct	lastSun	2:00	0	S
+# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
+Zone America/Indiana/Petersburg -5:49:07 - LMT	1883 Nov 18 12:10:53
+			-6:00	US	C%sT	1955
+			-6:00	Pike	C%sT	1965 Apr 25 2:00
+			-5:00	-	EST	1966 Oct 30 2:00
+			-6:00	US	C%sT	1977 Oct 30 2:00
+			-5:00	-	EST	2006 Apr  2 2:00
+			-6:00	US	C%sT
+#
+# Starke County, Indiana moved from central to eastern time in 1991,
+# then switched back in 2006.
 # From Arthur David Olson (1991-10-28):
 # An article on page A3 of the Sunday, 1991-10-27 Washington Post
 # notes that Starke County switched from Central time to Eastern time as of
@@ -603,10 +673,10 @@ Zone America/Indiana/Knox -5:46:30 -	LMT	1883 Nov 18 12:13:30
 			-6:00	Starke	C%sT	1962 Apr 29 2:00
 			-5:00	-	EST	1963 Oct 27 2:00
 			-6:00	US	C%sT	1991 Oct 27 2:00
-			-5:00	-	EST	2006
-			-5:00	US	E%sT
+			-5:00	-	EST	2006 Apr  2 2:00
+			-6:00	US	C%sT
 #
-# Switzerland County, Indiana, last observed DST in 1972.
+# Switzerland County, Indiana, did not observe DST from 1973 through 2005.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Indiana/Vevay -5:40:16 -	LMT	1883 Nov 18 12:19:44
 			-6:00	US	C%sT	1954 Apr 25 2:00
@@ -636,7 +706,7 @@ Zone America/Kentucky/Louisville -5:43:02 -	LMT	1883 Nov 18 12:16:58
 			-6:00	1:00	CDT	1974 Oct 27 2:00
 			-5:00	US	E%sT
 #
-# Wayne, Clinton, and Russell Counties, Kentucky
+# Wayne County, Kentucky
 #
 # From
 # 
@@ -733,7 +803,8 @@ Zone America/Detroit	-5:32:11 -	LMT	1905
 			-5:00	-	EST	1975 Apr 27 2:00
 			-5:00	US	E%sT
 #
-# The Michigan border with Wisconsin switched from EST to CST/CDT in 1973.
+# Dickinson, Gogebic, Iron, and Menominee Counties, Michigan,
+# switched from EST to CST/CDT in 1973.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
 Rule Menominee	1946	only	-	Apr	lastSun	2:00	1:00	D
 Rule Menominee	1946	only	-	Sep	lastSun	2:00	0	S
@@ -760,10 +831,10 @@ Zone America/Menominee	-5:50:27 -	LMT	1885 Sep 18 12:00
 ################################################################################
 
 
-# From Paul Eggert (1999-10-29):
-# A good source for time zone historical data outside the US is
-# Thomas G. Shanks, The International Atlas (5th edition),
-# San Diego: ACS Publications, Inc. (1999).
+# From Paul Eggert (2006-03-22):
+# A good source for time zone historical data outside the U.S. is
+# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
+# San Diego: ACS Publications, Inc. (2003).
 #
 # Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
@@ -771,8 +842,8 @@ Zone America/Menominee	-5:50:27 -	LMT	1885 Sep 18 12:00
 # published semiannually.  Law sent in several helpful summaries
 # of the IATA's data after 1990.
 #
-# Except where otherwise noted, Shanks is the source for entries through 1990,
-# and IATA SSIM is the source for entries after 1990.
+# Except where otherwise noted, Shanks & Pottenger is the source for
+# entries through 1990, and IATA SSIM is the source for entries afterwards.
 #
 # Other sources occasionally used include:
 #
@@ -820,9 +891,16 @@ Zone America/Menominee	-5:50:27 -	LMT	1885 Sep 18 12:00
 # From Paul Eggert (1994-11-22):
 # Alas, this sort of thing must be handled by localization software.
 
-# Unless otherwise specified, the data for Canada are all from Shanks.
+# Unless otherwise specified, the data for Canada are all from Shanks
+# & Pottenger.
 
-# From Paul Eggert (2005-12-21):
+# From Chris Walton (2006-04-01):
+# The British Columbia government announced yesterday that it will
+# adjust daylight savings next year to align with changes in the
+# U.S. and the rest of Canada....
+# http://www2.news.gov.bc.ca/news_releases_2005-2009/2006AG0014-000330.htm
+
+# From Paul Eggert (2006-04-25):
 # H. David Matthews and Mary Vincent's map
 # 
 # "It's about TIME", _Canadian Geographic_ (September-October 1998)
@@ -836,23 +914,14 @@ Zone America/Menominee	-5:50:27 -	LMT	1885 Sep 18 12:00
 # Its unofficial information is often taken from Matthews and Vincent.
 #
 # CBC News reported that Ontario and Manitoba have announced plans to
-# follow the US change, and that Nova Scotia is considering it; see
+# follow the US change; see
 #  (2005-10-21).
 # CBC news also reported that Prince Edward Island is the first
 # province in Atlantic Canada to follow the US change, and that Quebec
 # had agreed; see 
-# (2005-12-07).
-#
-# To reflect all this, the Canada and Winn rules have been adjusted to
-# agree with the 2007 US change.  This means we assume most of Canada
-# will fall into line.  However, Alberta, British Columbia,
-# Newfoundland, Northwest Territories, and Yukon already have separate
-# rules in our database, so for now we'll leave them alone, which
-# means that we currently assume these regions will not change their
-# rules and will disagree with the US starting in 2007.  This
-# assumption is probably incorrect, with the possible exception of
-# Newfoundland.  We plan to adjust the Edm, Vanc, StJohns, and NT_YK
-# rules as the corresponding provinces make their announcements.
+# (2005-12-07).  It also reported that Alberta will fall into line; see
+#  (2006-02-02).
+# For now, assume all of Canada will fall into line.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Canada	1918	only	-	Apr	14	2:00	1:00	D
@@ -878,20 +947,21 @@ Rule	Canada	2007	max	-	Nov	Sun>=1	2:00	0	S
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	StJohns	1917	only	-	Apr	 8	2:00	1:00	D
 Rule	StJohns	1917	only	-	Sep	17	2:00	0	S
-# Whitman gives 1919 Apr 5 and 1920 Apr 5; go with Shanks.
+# Whitman gives 1919 Apr 5 and 1920 Apr 5; go with Shanks & Pottenger.
 Rule	StJohns	1919	only	-	May	 5	23:00	1:00	D
 Rule	StJohns	1919	only	-	Aug	12	23:00	0	S
-# For 1931-1935 Whitman gives Apr same date; go with Shanks.
+# For 1931-1935 Whitman gives Apr same date; go with Shanks & Pottenger.
 Rule	StJohns	1920	1935	-	May	Sun>=1	23:00	1:00	D
 Rule	StJohns	1920	1935	-	Oct	lastSun	23:00	0	S
-# For 1936-1941 Whitman gives May Sun>=8 and Oct Sun>=1; go with Shanks.
+# For 1936-1941 Whitman gives May Sun>=8 and Oct Sun>=1; go with Shanks &
+# Pottenger.
 Rule	StJohns	1936	1941	-	May	Mon>=9	0:00	1:00	D
 Rule	StJohns	1936	1941	-	Oct	Mon>=2	0:00	0	S
 # Whitman gives the following transitions:
 # 1942 03-01/12-31, 1943 05-30/09-05, 1944 07-10/09-02, 1945 01-01/10-07
-# but go with Shanks and assume they used Canadian rules.
+# but go with Shanks & Pottenger and assume they used Canadian rules.
 # For 1946-9 Whitman gives May 5,4,9,1 - Oct 1,5,3,2, and for 1950 he gives
-# Apr 30 - Sep 24; go with Shanks.
+# Apr 30 - Sep 24; go with Shanks & Pottenger.
 Rule	StJohns	1946	1950	-	May	Sun>=8	2:00	1:00	D
 Rule	StJohns	1946	1950	-	Oct	Sun>=2	2:00	0	S
 Rule	StJohns	1951	1986	-	Apr	lastSun	2:00	1:00	D
@@ -901,9 +971,15 @@ Rule	StJohns	1960	1986	-	Oct	lastSun	2:00	0	S
 # INMS (2000-09-12) says that, since 1988 at least, Newfoundland switches
 # at 00:01 local time.  For now, assume it started in 1987.
 Rule	StJohns	1987	only	-	Apr	Sun>=1	0:01	1:00	D
-Rule	StJohns	1987	max	-	Oct	lastSun	0:01	0	S
+Rule	StJohns	1987	2006	-	Oct	lastSun	0:01	0	S
 Rule	StJohns	1988	only	-	Apr	Sun>=1	0:01	2:00	DD
-Rule	StJohns	1989	max	-	Apr	Sun>=1	0:01	1:00	D
+Rule	StJohns	1989	2006	-	Apr	Sun>=1	0:01	1:00	D
+# From Chris Walton (2006-04-05):
+# http://www.releases.gov.nl.ca/releases/2006/mpa/0331n01.htm
+# [This says Newfoundlandland expects to follow step with the US.]
+Rule	StJohns	2007	max	-	Mar	Sun>=8	0:01	1:00	D
+Rule	StJohns	2007	max	-	Nov	Sun>=1	0:01	0	S
+#
 # St John's has an apostrophe, but Posix file names can't have apostrophes.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/St_Johns	-3:30:52 -	LMT	1884
@@ -929,62 +1005,63 @@ Zone America/Goose_Bay	-4:01:40 -	LMT	1884 # Happy Valley-Goose Bay
 			-4:00	StJohns	A%sT
 
 
-# west Labrador, New Brunswick, Nova Scotia, Prince Edward I
+# west Labrador, Nova Scotia, Prince Edward I
 
-# From Paul Eggert (1996-06-12):
-# Shanks writes that since 1970 most of this region has been like Halifax.
-# Many locales did not observe peacetime DST until 1972;
+# From Paul Eggert (2006-03-22):
+# Shanks & Pottenger write that since 1970 most of this region has been like
+# Halifax.  Many locales did not observe peacetime DST until 1972;
 # Glace Bay, NS is the largest that we know of.
-# Shanks also writes that Liverpool, NS was the only town in Canada to observe
-# DST in 1971 but not 1970; for now we'll assume this is a typo.
-
-# From Paul Eggert (2000-10-02):
-# INMS (2000-09-12) says that, since 1988 at least, New Brunswick switches
-# at 00:01 local time.  FIXME: verify and create a new Zone for this.
+# Shanks & Pottenger also write that Liverpool, NS was the only town
+# in Canada to observe DST in 1971 but not 1970; for now we'll assume
+# this is a typo.
 
+# From Chris Walton (2006-04-25):
+# Daylight saving time will be extended by four weeks starting in 2007....
+# Here is a news release which was issued today by the Nova Scotia government:
+# http://www.gov.ns.ca/news/details.asp?id=20060425004
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule Halifax	1916	only	-	Apr	 1	0:00	1:00	D
-Rule Halifax	1916	only	-	Oct	 1	0:00	0	S
-Rule Halifax	1920	only	-	May	 9	0:00	1:00	D
-Rule Halifax	1920	only	-	Aug	29	0:00	0	S
-Rule Halifax	1921	only	-	May	 6	0:00	1:00	D
-Rule Halifax	1921	1922	-	Sep	 5	0:00	0	S
-Rule Halifax	1922	only	-	Apr	30	0:00	1:00	D
-Rule Halifax	1923	1925	-	May	Sun>=1	0:00	1:00	D
-Rule Halifax	1923	only	-	Sep	 4	0:00	0	S
-Rule Halifax	1924	only	-	Sep	15	0:00	0	S
-Rule Halifax	1925	only	-	Sep	28	0:00	0	S
-Rule Halifax	1926	only	-	May	16	0:00	1:00	D
-Rule Halifax	1926	only	-	Sep	13	0:00	0	S
-Rule Halifax	1927	only	-	May	 1	0:00	1:00	D
-Rule Halifax	1927	only	-	Sep	26	0:00	0	S
-Rule Halifax	1928	1931	-	May	Sun>=8	0:00	1:00	D
-Rule Halifax	1928	only	-	Sep	 9	0:00	0	S
-Rule Halifax	1929	only	-	Sep	 3	0:00	0	S
-Rule Halifax	1930	only	-	Sep	15	0:00	0	S
-Rule Halifax	1931	1932	-	Sep	Mon>=24	0:00	0	S
-Rule Halifax	1932	only	-	May	 1	0:00	1:00	D
-Rule Halifax	1933	only	-	Apr	30	0:00	1:00	D
-Rule Halifax	1933	only	-	Oct	 2	0:00	0	S
-Rule Halifax	1934	only	-	May	20	0:00	1:00	D
-Rule Halifax	1934	only	-	Sep	16	0:00	0	S
-Rule Halifax	1935	only	-	Jun	 2	0:00	1:00	D
-Rule Halifax	1935	only	-	Sep	30	0:00	0	S
-Rule Halifax	1936	only	-	Jun	 1	0:00	1:00	D
-Rule Halifax	1936	only	-	Sep	14	0:00	0	S
-Rule Halifax	1937	1938	-	May	Sun>=1	0:00	1:00	D
-Rule Halifax	1937	1941	-	Sep	Mon>=24	0:00	0	S
-Rule Halifax	1939	only	-	May	28	0:00	1:00	D
-Rule Halifax	1940	1941	-	May	Sun>=1	0:00	1:00	D
-Rule Halifax	1946	1949	-	Sep	lastSun	2:00	0	S
-Rule Halifax	1946	1949	-	Apr	lastSun	2:00	1:00	D
-Rule Halifax	1951	1954	-	Sep	lastSun	2:00	0	S
-Rule Halifax	1951	1954	-	Apr	lastSun	2:00	1:00	D
-Rule Halifax	1956	1959	-	Sep	lastSun	2:00	0	S
-Rule Halifax	1956	1959	-	Apr	lastSun	2:00	1:00	D
-Rule Halifax	1962	1973	-	Apr	lastSun	2:00	1:00	D
-Rule Halifax	1962	1973	-	Oct	lastSun	2:00	0	S
+Rule	Halifax	1916	only	-	Apr	 1	0:00	1:00	D
+Rule	Halifax	1916	only	-	Oct	 1	0:00	0	S
+Rule	Halifax	1920	only	-	May	 9	0:00	1:00	D
+Rule	Halifax	1920	only	-	Aug	29	0:00	0	S
+Rule	Halifax	1921	only	-	May	 6	0:00	1:00	D
+Rule	Halifax	1921	1922	-	Sep	 5	0:00	0	S
+Rule	Halifax	1922	only	-	Apr	30	0:00	1:00	D
+Rule	Halifax	1923	1925	-	May	Sun>=1	0:00	1:00	D
+Rule	Halifax	1923	only	-	Sep	 4	0:00	0	S
+Rule	Halifax	1924	only	-	Sep	15	0:00	0	S
+Rule	Halifax	1925	only	-	Sep	28	0:00	0	S
+Rule	Halifax	1926	only	-	May	16	0:00	1:00	D
+Rule	Halifax	1926	only	-	Sep	13	0:00	0	S
+Rule	Halifax	1927	only	-	May	 1	0:00	1:00	D
+Rule	Halifax	1927	only	-	Sep	26	0:00	0	S
+Rule	Halifax	1928	1931	-	May	Sun>=8	0:00	1:00	D
+Rule	Halifax	1928	only	-	Sep	 9	0:00	0	S
+Rule	Halifax	1929	only	-	Sep	 3	0:00	0	S
+Rule	Halifax	1930	only	-	Sep	15	0:00	0	S
+Rule	Halifax	1931	1932	-	Sep	Mon>=24	0:00	0	S
+Rule	Halifax	1932	only	-	May	 1	0:00	1:00	D
+Rule	Halifax	1933	only	-	Apr	30	0:00	1:00	D
+Rule	Halifax	1933	only	-	Oct	 2	0:00	0	S
+Rule	Halifax	1934	only	-	May	20	0:00	1:00	D
+Rule	Halifax	1934	only	-	Sep	16	0:00	0	S
+Rule	Halifax	1935	only	-	Jun	 2	0:00	1:00	D
+Rule	Halifax	1935	only	-	Sep	30	0:00	0	S
+Rule	Halifax	1936	only	-	Jun	 1	0:00	1:00	D
+Rule	Halifax	1936	only	-	Sep	14	0:00	0	S
+Rule	Halifax	1937	1938	-	May	Sun>=1	0:00	1:00	D
+Rule	Halifax	1937	1941	-	Sep	Mon>=24	0:00	0	S
+Rule	Halifax	1939	only	-	May	28	0:00	1:00	D
+Rule	Halifax	1940	1941	-	May	Sun>=1	0:00	1:00	D
+Rule	Halifax	1946	1949	-	Apr	lastSun	2:00	1:00	D
+Rule	Halifax	1946	1949	-	Sep	lastSun	2:00	0	S
+Rule	Halifax	1951	1954	-	Apr	lastSun	2:00	1:00	D
+Rule	Halifax	1951	1954	-	Sep	lastSun	2:00	0	S
+Rule	Halifax	1956	1959	-	Apr	lastSun	2:00	1:00	D
+Rule	Halifax	1956	1959	-	Sep	lastSun	2:00	0	S
+Rule	Halifax	1962	1973	-	Apr	lastSun	2:00	1:00	D
+Rule	Halifax	1962	1973	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Halifax	-4:14:24 -	LMT	1902 Jun 15
 			-4:00	Halifax	A%sT	1918
@@ -1000,12 +1077,49 @@ Zone America/Glace_Bay	-3:59:48 -	LMT	1902 Jun 15
 			-4:00	Halifax	A%sT	1974
 			-4:00	Canada	A%sT
 
+# New Brunswick
+
+# From Paul Eggert (2006-01-20):
+# New Brunswick's Time Definition Act
+#  says they change at 00:01, and
+#  makes it
+# clear that this has been the case since at least 1993.
+# For now, assume it started in 1993.  The Office of the Premier announced
+#  (2005-12-23)
+# that they will bring forward proposed amendments to harmonize with the US;
+# for now assume that this will happen, but they'll still switch at 00:01.
+
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+Rule	Moncton	1933	1935	-	Jun	Sun>=8	1:00	1:00	D
+Rule	Moncton	1933	1935	-	Sep	Sun>=8	1:00	0	S
+Rule	Moncton	1936	1938	-	Jun	Sun>=1	1:00	1:00	D
+Rule	Moncton	1936	1938	-	Sep	Sun>=1	1:00	0	S
+Rule	Moncton	1939	only	-	May	27	1:00	1:00	D
+Rule	Moncton	1939	1941	-	Sep	Sat>=21	1:00	0	S
+Rule	Moncton	1940	only	-	May	19	1:00	1:00	D
+Rule	Moncton	1941	only	-	May	 4	1:00	1:00	D
+Rule	Moncton	1946	1972	-	Apr	lastSun	2:00	1:00	D
+Rule	Moncton	1946	1956	-	Sep	lastSun	2:00	0	S
+Rule	Moncton	1957	1972	-	Oct	lastSun	2:00	0	S
+Rule	Moncton	1993	2006	-	Apr	Sun>=1	0:01	1:00	D
+Rule	Moncton	1993	2006	-	Oct	lastSun	0:01	0	S
+Rule	Moncton	2007	max	-	Mar	Sun>=8	0:01	1:00	D
+Rule	Moncton	2007	max	-	Nov	Sun>=1	0:01	0	S
+# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
+Zone America/Moncton	-4:19:08 -	LMT	1883 Dec  9
+			-5:00	-	EST	1902 Jun 15
+			-4:00	Canada	A%sT	1933
+			-4:00	Moncton	A%sT	1942
+			-4:00	Canada	A%sT	1946
+			-4:00	Moncton	A%sT	1973
+			-4:00	Canada	A%sT	1993
+			-4:00	Moncton	A%sT
 
 # Ontario, Quebec
 
-# From Paul Eggert (1996-06-12):
-# Shanks writes that since 1970 most of Ontario has been like Toronto,
-# and most of Quebec has been like Montreal.
+# From Paul Eggert (2006-03-22):
+# Shanks & Pottenger writes that since 1970 most of Ontario has been like
+# Toronto, and most of Quebec has been like Montreal.
 # Thunder Bay skipped DST in 1973.
 # Many smaller locales did not observe peacetime DST until 1974;
 # Nipigon (EST) and Rainy River (CST) are the largest that we know of.
@@ -1035,7 +1149,9 @@ Zone America/Glace_Bay	-3:59:48 -	LMT	1902 Jun 15
 # says that Ontario east of 90W uses EST/EDT, and west of 90W uses CST/CDT.
 # Officially Atikokan is therefore on CST/CDT, and most likely this report
 # concerns a non-official time observed as a matter of local practice.
-# For what it's worth, Shanks says that Atikokan has agreed with
+#
+# From Paul Eggert (2006-03-22):
+# For what it's worth, Shanks & Pottenger say that Atikokan has agreed with
 # Rainy River ever since standard time was introduced.
 
 # From Paul Eggert (2000-10-02):
@@ -1086,7 +1202,8 @@ Rule	Toronto	1920	only	-	Sep	26	0:00	0	S
 Rule	Toronto	1921	only	-	May	15	2:00	1:00	D
 Rule	Toronto	1921	only	-	Sep	15	2:00	0	S
 Rule	Toronto	1922	1923	-	May	Sun>=8	2:00	1:00	D
-# Shanks says 1923-09-19; assume it's a typo and that "-16" was meant.
+# Shanks & Pottenger say 1923-09-19; assume it's a typo and that "-16"
+# was meant.
 Rule	Toronto	1922	1926	-	Sep	Sun>=15	2:00	0	S
 Rule	Toronto	1924	1927	-	May	Sun>=1	2:00	1:00	D
 # The 1927-to-1939 rules can be expressed more simply as
@@ -1110,9 +1227,10 @@ Rule	Toronto	1949	only	-	Nov	lastSun	0:00	0	S
 Rule	Toronto	1950	1973	-	Apr	lastSun	2:00	1:00	D
 Rule	Toronto	1950	only	-	Nov	lastSun	2:00	0	S
 Rule	Toronto	1951	1956	-	Sep	lastSun	2:00	0	S
-# Shanks says Toronto ended DST a week early in 1971, namely on 1971-10-24,
-# but Mark Brader wrote (2003-05-31) that he checked the 1971-10-30 issue
-# of the Toronto Star, and it said that DST ended 1971-10-31 as usual.
+# Shanks & Pottenger say Toronto ended DST a week early in 1971,
+# namely on 1971-10-24, but Mark Brader wrote (2003-05-31) that he
+# checked the 1971-10-30 issue of the Toronto Star, and it said that
+# DST ended 1971-10-31 as usual.
 Rule	Toronto	1957	1973	-	Oct	lastSun	2:00	0	S
 
 # From Paul Eggert (2003-07-27):
@@ -1166,6 +1284,30 @@ Zone America/Rainy_River -6:17:56 -	LMT	1895
 
 # Manitoba
 
+# From Chris Walton (2006-04-05):
+# Here is a copy of the new official time act ...
+# http://web2.gov.mb.ca/laws/statutes/ccsm/o030e.php
+# The act indicates that daylight savings ends at 2:00am.
+
+# From Rob Douglas (2006-04-06):
+# the old Manitoba Time Act - as amended by Bill 2, assented to
+# March 27, 1987 ... said ...
+# "between two o'clock Central Standard Time in the morning of
+# the first Sunday of April of each year and two o'clock Central
+# Standard Time in the morning of the last Sunday of October next
+# following, one hour in advance of Central Standard Time."...
+# I believe that the English legislation [of the old time act] had =
+# been assented to (March 22, 1967)....
+# Also, as far as I can tell, there was no order-in-council varying
+# the time of Daylight Saving Time for 2005 and so the provisions of
+# the 1987 version would apply - the changeover was at 2:00 Central
+# Standard Time (i.e. not until 3:00 Central Daylight Time).
+
+# From Paul Eggert (2006-04-10):
+# Shanks & Pottenger say Manitoba switched at 02:00 (not 02:00s)
+# starting 1966.  Since 02:00s is clearly correct for 1967 on, assume
+# it was also 02:00s in 1966.
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Winn	1916	only	-	Apr	23	0:00	1:00	D
 Rule	Winn	1916	only	-	Sep	17	0:00	0	S
@@ -1188,18 +1330,13 @@ Rule	Winn	1959	only	-	Oct	lastSun	2:00	0	S
 Rule	Winn	1960	only	-	Sep	lastSun	2:00	0	S
 Rule	Winn	1963	only	-	Apr	lastSun	2:00	1:00	D
 Rule	Winn	1963	only	-	Sep	22	2:00	0	S
-Rule	Winn	1966	1986	-	Apr	lastSun	2:00	1:00	D
-Rule	Winn	1966	1986	-	Oct	lastSun	2:00	0	S
-Rule	Winn	1987	2006	-	Apr	Sun>=1	2:00s	1:00	D
-# From Paul Eggert (2000-10-02):
-# INMS (2000-09-12) says that, since 1988 at least, Manitoba switches from
-# DST at 03:00 local time.  For now, assume it started in 1987.
-Rule	Winn	1987	2006	-	Oct	lastSun	2:00s	0	S
-Rule	Winn	2007	max	-	Mar	Sun>=8	2:00s	1:00	D
-Rule	Winn	2007	max	-	Nov	Sun>=1	2:00s	0	S
+Rule	Winn	1966	1986	-	Apr	lastSun	2:00s	1:00	D
+Rule	Winn	1966	2005	-	Oct	lastSun	2:00s	0	S
+Rule	Winn	1987	2005	-	Apr	Sun>=1	2:00s	1:00	D
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Winnipeg	-6:28:36 -	LMT	1887 Jul 16
-			-6:00	Winn	C%sT
+			-6:00	Winn	C%sT	2006
+			-6:00	Canada	C%sT
 
 
 # Saskatchewan
@@ -1218,8 +1355,8 @@ Zone America/Winnipeg	-6:28:36 -	LMT	1887 Jul 16
 # Willett (1914-03) notes that DST "has been in operation ... in the
 # City of Moose Jaw, Saskatchewan, for one year."
 
-# From Paul Eggert (2000-10-02):
-# Shanks writes that since 1970 most of this region has been like Regina.
+# From Paul Eggert (2006-03-22):
+# Shanks & Pottenger say that since 1970 this region has mostly been as Regina.
 # Some western towns (e.g. Swift Current) switched from MST/MDT to CST in 1972.
 # Other western towns (e.g. Lloydminster) are like Edmonton.
 # Matthews and Vincent (1998) write that Denare Beach and Creighton
@@ -1305,17 +1442,18 @@ Rule	Edm	1967	only	-	Oct	lastSun	2:00	0	S
 Rule	Edm	1969	only	-	Apr	lastSun	2:00	1:00	D
 Rule	Edm	1969	only	-	Oct	lastSun	2:00	0	S
 Rule	Edm	1972	1986	-	Apr	lastSun	2:00	1:00	D
-Rule	Edm	1972	max	-	Oct	lastSun	2:00	0	S
-Rule	Edm	1987	max	-	Apr	Sun>=1	2:00	1:00	D
+Rule	Edm	1972	2006	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Edmonton	-7:33:52 -	LMT	1906 Sep
-			-7:00	Edm	M%sT
+			-7:00	Edm	M%sT	1987
+			-7:00	Canada	M%sT
 
 
 # British Columbia
 
-# From Paul Eggert (2000-10-02):
-# Shanks writes that since 1970 most of this region has been like Vancouver.
+# From Paul Eggert (2006-03-22):
+# Shanks & Pottenger write that since 1970 most of this region has
+# been like Vancouver.
 # Dawson Creek uses MST.  Much of east BC is like Edmonton.
 # Matthews and Vincent (1998) write that Creston is like Dawson Creek.
 
@@ -1328,11 +1466,11 @@ Rule	Vanc	1945	only	-	Sep	30	2:00	0	S
 Rule	Vanc	1946	1986	-	Apr	lastSun	2:00	1:00	D
 Rule	Vanc	1946	only	-	Oct	13	2:00	0	S
 Rule	Vanc	1947	1961	-	Sep	lastSun	2:00	0	S
-Rule	Vanc	1962	max	-	Oct	lastSun	2:00	0	S
-Rule	Vanc	1987	max	-	Apr	Sun>=1	2:00	1:00	D
+Rule	Vanc	1962	2006	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Vancouver	-8:12:28 -	LMT	1884
-			-8:00	Vanc	P%sT
+			-8:00	Vanc	P%sT	1987
+			-8:00	Canada	P%sT
 Zone America/Dawson_Creek -8:00:56 -	LMT	1884
 			-8:00	Canada	P%sT	1947
 			-8:00	Vanc	P%sT	1972 Aug 30 2:00
@@ -1341,7 +1479,7 @@ Zone America/Dawson_Creek -8:00:56 -	LMT	1884
 
 # Northwest Territories, Nunavut, Yukon
 
-# From Paul Eggert (1999-10-29):
+# From Paul Eggert (2006-03-22):
 # Dawson switched to PST in 1973.  Inuvik switched to MST in 1979.
 # Mathew Englander (1996-10-07) gives the following refs:
 #	* 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68,
@@ -1350,7 +1488,8 @@ Zone America/Dawson_Creek -8:00:56 -	LMT	1884
 #	* C.O. 1973/214 switched Yukon to PST on 1973-10-28 00:00.
 #	* O.I.C. 1980/02 established DST.
 #	* O.I.C. 1987/056 changed DST to Apr firstSun 2:00 to Oct lastSun 2:00.
-# Shanks says Yukon's 1973-10-28 switch was at 2:00; go with Englander.
+# Shanks & Pottenger say Yukon's 1973-10-28 switch was at 2:00; go
+# with Englander.
 
 # From Rives McDow (1999-09-04):
 # Nunavut ... moved ... to incorporate the whole territory into one time zone.
@@ -1458,6 +1597,10 @@ Zone America/Dawson_Creek -8:00:56 -	LMT	1884
 # From Paul Eggert (2005-07-26):
 # For lack of better information, assume that Southampton Island observed
 # daylight saving only during wartime.
+#
+# From Chris Walton (2006-04-25):
+# Daylight saving time will be extended by four weeks starting in 2007....
+# http://www.cbc.ca/north/story/nor-nwt-time-change.html
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	NT_YK	1918	only	-	Apr	14	2:00	1:00	D
@@ -1470,8 +1613,8 @@ Rule	NT_YK	1945	only	-	Sep	30	2:00	0	S
 Rule	NT_YK	1965	only	-	Apr	lastSun	0:00	2:00	DD
 Rule	NT_YK	1965	only	-	Oct	lastSun	2:00	0	S
 Rule	NT_YK	1980	1986	-	Apr	lastSun	2:00	1:00	D
-Rule	NT_YK	1980	max	-	Oct	lastSun	2:00	0	S
-Rule	NT_YK	1987	max	-	Apr	Sun>=1	2:00	1:00	D
+Rule	NT_YK	1980	2006	-	Oct	lastSun	2:00	0	S
+Rule	NT_YK	1987	2006	-	Apr	Sun>=1	2:00	1:00	D
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Pangnirtung -4:22:56 -	LMT	1884
 			-4:00	NT_YK	A%sT	1995 Apr Sun>=1 2:00
@@ -1496,16 +1639,20 @@ Zone America/Cambridge_Bay -7:00:20 -	LMT	1884
 			-6:00	-	CST	2001 Apr  1 3:00
 			-7:00	Canada	M%sT
 Zone America/Yellowknife -7:37:24 -	LMT	1884
-			-7:00	NT_YK	M%sT
+			-7:00	NT_YK	M%sT	1980
+			-7:00	Canada	M%sT
 Zone America/Inuvik	-8:54:00 -	LMT	1884
 			-8:00	NT_YK	P%sT	1979 Apr lastSun 2:00
-			-7:00	NT_YK	M%sT
+			-7:00	NT_YK	M%sT	1980
+			-7:00	Canada	M%sT
 Zone America/Whitehorse	-9:00:12 -	LMT	1900 Aug 20
 			-9:00	NT_YK	Y%sT	1966 Jul 1 2:00
-			-8:00	NT_YK	P%sT
+			-8:00	NT_YK	P%sT	1980
+			-8:00	Canada	P%sT
 Zone America/Dawson	-9:17:40 -	LMT	1900 Aug 20
 			-9:00	NT_YK	Y%sT	1973 Oct 28 0:00
-			-8:00	NT_YK	P%sT
+			-8:00	NT_YK	P%sT	1980
+			-8:00	Canada	P%sT
 
 
 ###############################################################################
@@ -1519,16 +1666,12 @@ Zone America/Dawson	-9:17:40 -	LMT	1900 Aug 20
 # history of Mexican local time (in Spanish)
 # .
 #
-# Here are the discrepancies between Shanks and the MLoC.
+# Here are the discrepancies between Shanks & Pottenger (S&P) and the MLoC.
 # (In all cases we go with the MLoC.)
-# Shanks reports that Baja was at -8:00 in 1922/1923.
-# Shanks says the 1930 transition in Baja was 1930-11-16.
-# Shanks reports no DST during summer 1931.
-# Shanks reports a transition at 1932-03-30 23:00, not 1932-04-01.
-# Shanks does not report transitions for Baja in 1945 or 1948.
-# Shanks reports southern Mexico transitions on 1981-12-01, not 12-23.
-# Shanks says Quintana Roo switched to -6:00 on 1982-12-02, and to -5:00
-# on 1997-10-26 at 02:00.
+# S&P report that Baja was at -8:00 in 1922/1923.
+# S&P say the 1930 transition in Baja was 1930-11-16.
+# S&P report no DST during summer 1931.
+# S&P report a transition at 1932-03-30 23:00, not 1932-04-01.
 
 # From Gwillim Law (2001-02-20):
 # There are some other discrepancies between the Decrees page and the
@@ -1536,10 +1679,6 @@ Zone America/Dawson	-9:17:40 -	LMT	1900 Aug 20
 # the researchers who prepared the Decrees page failed to find some of
 # the relevant documents.
 
-# From Paul Eggert (2000-07-26):
-# Shanks gives 1942-04-01 instead of 1942-04-24, and omits the 1981
-# and 1988 DST experiments.  Go with spin.com.mx.
-
 # From Alan Perry (1996-02-15):
 # A guy from our Mexico subsidiary finally found the Presidential Decree
 # outlining the timezone changes in Mexico.
@@ -1739,7 +1878,8 @@ Zone America/Tijuana	-7:48:04 -	LMT	1922 Jan  1  0:11:56
 			-8:00	-	PST	1931 Apr  1
 			-8:00	1:00	PDT	1931 Sep 30
 			-8:00	-	PST	1942 Apr 24
-			-8:00	1:00	PWT	1945 Nov 12
+			-8:00	1:00	PWT	1945 Aug 14 23:00u
+			-8:00	1:00	PPT	1945 Nov 12 # Peace
 			-8:00	-	PST	1948 Apr  5
 			-8:00	1:00	PDT	1949 Jan 14
 			-8:00	-	PST	1954
@@ -1749,12 +1889,13 @@ Zone America/Tijuana	-7:48:04 -	LMT	1922 Jan  1  0:11:56
 			-8:00	Mexico	P%sT	2001
 			-8:00	US	P%sT	2002 Feb 20
 			-8:00	Mexico	P%sT
-# From Paul Eggert (2001-03-05):
+# From Paul Eggert (2006-03-22):
 # Formerly there was an America/Ensenada zone, which differed from
 # America/Tijuana only in that it did not observe DST from 1976
-# through 1995.  This was as per Shanks.  However, Guy Harris reports
+# through 1995.  This was as per Shanks (1999).  But Shanks & Pottenger say
+# Ensenada did not observe DST from 1948 through 1975.  Guy Harris reports
 # that the 1987 OAG says "Only Ensenada, Mexicale, San Felipe and
-# Tijuana observe DST," which contradicts Shanks but does imply that
+# Tijuana observe DST," which agrees with Shanks & Pottenger but implies that
 # DST-observance was a town-by-town matter back then.  This concerns
 # data after 1970 so most likely there should be at least one Zone
 # other than America/Tijuana for Baja, but it's not clear yet what its
@@ -1798,7 +1939,7 @@ Zone America/Barbados	-3:58:28 -	LMT	1924		# Bridgetown
 			-4:00	Barb	A%sT
 
 # Belize
-# Whitman entirely disagrees with Shanks; go with Shanks.
+# 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
@@ -1827,7 +1968,8 @@ Zone	America/Cayman	-5:25:32 -	LMT	1890		# Georgetown
 Rule	CR	1979	1980	-	Feb	lastSun	0:00	1:00	D
 Rule	CR	1979	1980	-	Jun	Sun>=1	0:00	0	S
 Rule	CR	1991	1992	-	Jan	Sat>=15	0:00	1:00	D
-# IATA SSIM (1991-09) says the following was at 1:00; go with Shanks.
+# IATA SSIM (1991-09) says the following was at 1:00;
+# go with Shanks & Pottenger.
 Rule	CR	1991	only	-	Jul	 1	0:00	0	S
 Rule	CR	1992	only	-	Mar	15	0:00	0	S
 # There are too many San Joses elsewhere, so we'll use `Costa Rica'.
@@ -1853,12 +1995,12 @@ Zone America/Costa_Rica	-5:36:20 -	LMT	1890		# San Jose
 
 # From Evert van der Veer via Steffen Thorsen (2004-10-28):
 # Cuba is not going back to standard time this year.
-# From Paul Eggert (2004-10-28):
+# From Paul Eggert (2006-03-22):
 # http://www.granma.cu/ingles/2004/septiembre/juev30/41medid-i.html
 # says that it's due to a problem at the Antonio Guiteras
 # thermoelectric plant, and says "This October there will be no return
 # to normal hours (after daylight saving time)".
-# For now, let's assume that it's a one-year temporary measure.
+# For now, let's assume that it's a temporary measure.
 
 # From Carlos A. Carnero Delgado (2005-11-12):
 # This year (just like in 2004-2005) there's no change in time zone
@@ -1943,6 +2085,16 @@ Zone America/Santo_Domingo -4:39:36 -	LMT	1890
 			-4:00	-	AST
 
 # El Salvador
+
+# From Paul Eggert (2006-05-05):
+# worldtimezone.com reports a 2006-05-02 Spanish-language AP article
+# saying Honduras will start using DST midnight Saturday, effective 4
+# months until September, and a 2006-05-03 NACION article saying El
+# Salvador will follow suit.  However, ignore this for now, because:
+# From Jesper Norgaard Welen (2005-05-05):
+# Change of DST perhaps postponed in El Salvador:
+# http://www.laprensagrafica.com/lodeldia/883.asp
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Salv	1987	1988	-	May	Sun>=1	0:00	1:00	D
 Rule	Salv	1987	1988	-	Sep	lastSun	0:00	0	S
@@ -1963,6 +2115,14 @@ Zone America/Guadeloupe	-4:06:08 -	LMT	1911 Jun 8	# Pointe a Pitre
 			-4:00	-	AST
 
 # Guatemala
+#
+# From Gwillim Law (2006-04-22), after a heads-up from Oscar van Vlijmen:
+# Diario Co Latino, at
+# http://www.diariocolatino.com/internacionales/detalles.asp?NewsID=8079,
+# says in an article dated 2006-04-19 that the Guatemalan government had
+# decided on that date to advance official time by 60 minutes, to lessen the
+# impact of the elevated cost of oil....  Daylight saving time will last from
+# 2006-04-29 24:00 (Guatemalan standard time) to 2006-09-30 (time unspecified).
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Guat	1973	only	-	Nov	25	0:00	1:00	D
 Rule	Guat	1974	only	-	Feb	24	0:00	0	S
@@ -1970,6 +2130,8 @@ Rule	Guat	1983	only	-	May	21	0:00	1:00	D
 Rule	Guat	1983	only	-	Sep	22	0:00	0	S
 Rule	Guat	1991	only	-	Mar	23	0:00	1:00	D
 Rule	Guat	1991	only	-	Sep	 7	0:00	0	S
+Rule	Guat	2006	only	-	Apr	30	0:00	1:00	D
+Rule	Guat	2006	only	-	Oct	 1	0:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Guatemala	-6:02:04 -	LMT	1918 Oct 5
 			-6:00	Guat	C%sT
@@ -1994,26 +2156,53 @@ Zone America/Guatemala	-6:02:04 -	LMT	1918 Oct 5
 #   October 2005.
 #
 #  "Port-au-Prince, March 31, 2005"
+#
+# From Steffen Thorsen (2006-04-04):
+# I have been informed by users that Haiti observes DST this year like
+# last year, so the current "only" rule for 2005 might be changed to a
+# "max" rule or to last until 2006. (Who knows if they will observe DST
+# next year or if they will extend their DST like US/Canada next year).
+#
+# I have found this article about it (in French):
+# http://www.haitipressnetwork.com/news.cfm?articleID=7612
+#
+# The reason seems to be an energy crisis.
+
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Haiti	1983	only	-	May	8	0:00	1:00	D
 Rule	Haiti	1984	1987	-	Apr	lastSun	0:00	1:00	D
 Rule	Haiti	1983	1987	-	Oct	lastSun	0:00	0	S
-# Shanks says AT is 2:00, but IATA SSIM (1991/1997) says 1:00s.  Go with IATA.
+# Shanks & Pottenger say AT is 2:00, but IATA SSIM (1991/1997) says 1:00s.
+# Go with IATA.
 Rule	Haiti	1988	1997	-	Apr	Sun>=1	1:00s	1:00	D
 Rule	Haiti	1988	1997	-	Oct	lastSun	1:00s	0	S
-Rule	Haiti	2005	only	-	Apr	Sun>=1	0:00	1:00	D
-Rule	Haiti	2005	only	-	Oct	lastSun	0:00	0	S
+Rule	Haiti	2005	max	-	Apr	Sun>=1	0:00	1:00	D
+Rule	Haiti	2005	max	-	Oct	lastSun	0:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Port-au-Prince -4:49:20 -	LMT	1890
 			-4:49	-	PPMT	1917 Jan 24 12:00 # P-a-P MT
 			-5:00	Haiti	E%sT
 
 # Honduras
-# Shanks says 1921 Jan 1; go with Whitman's more precise Apr 1.
+# Shanks & Pottenger say 1921 Jan 1; go with Whitman's more precise Apr 1.
+
+# From Paul Eggert (2006-05-05):
+# worldtimezone.com reports a 2006-05-02 Spanish-language AP article
+# saying Honduras will start using DST midnight Saturday, effective 4
+# months until September.  La Tribuna reported today
+#  that Manuel Zelaya, the president
+# of Honduras, refused to back down on this.  For lack of better info,
+# assume they'll use the same end-of-DST rules as in 1987 and 1988.
+
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+Rule	Hond	1987	1988	-	May	Sun>=1	0:00	1:00	D
+Rule	Hond	1987	1988	-	Sep	lastSun	0:00	0	S
+Rule	Hond	2006	only	-	May	Sun>=1	0:00	1:00	D
+Rule	Hond	2006	only	-	Sep	lastSun	0:00	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Tegucigalpa -5:48:52 -	LMT	1921 Apr
-			-6:00	Salv	C%sT
+			-6:00	Hond	C%sT
 #
 # Great Swan I ceded by US to Honduras in 1972
 
@@ -2025,7 +2214,7 @@ Zone America/Tegucigalpa -5:48:52 -	LMT	1921 Apr
 # From U. S. Naval Observatory (1989-01-19):
 # JAMAICA             5 H  BEHIND UTC
 
-# From Shanks:
+# From Shanks & Pottenger:
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Jamaica	-5:07:12 -	LMT	1890		# Kingston
 			-5:07:12 -	KMT	1912 Feb    # Kingston Mean Time
@@ -2042,18 +2231,16 @@ Zone America/Martinique	-4:04:20 -      LMT	1890		# Fort-de-France
 			-4:00	-	AST
 
 # Montserrat
-# From Paul Eggert (1997-08-31):
-# Recent volcanic eruptions have forced evacuation of Plymouth, the capital.
-# Luckily, Olveston, the current de facto capital, has the same longitude.
+# From Paul Eggert (2006-03-22):
+# In 1995 volcanic eruptions forced evacuation of Plymouth, the capital.
+# world.gazetteer.com says Cork Hill is the most populous location now.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone America/Montserrat	-4:08:52 -	LMT	1911 Jul 1 0:01   # Olveston
+Zone America/Montserrat	-4:08:52 -	LMT	1911 Jul 1 0:01   # Cork Hill
 			-4:00	-	AST
 
 # Nicaragua
 #
-# From Steffen Thorsen (1998-12-29):
-# Nicaragua seems to be back at -6:00 but I have not been able to find when
-# they changed from -5:00.
+# This uses Shanks & Pottenger for times before 2005.
 #
 # From Steffen Thorsen (2005-04-12):
 # I've got reports from 8 different people that Nicaragua just started
@@ -2067,8 +2254,7 @@ Zone America/Montserrat	-4:08:52 -	LMT	1911 Jul 1 0:01   # Olveston
 #
 # From Paul Eggert (2005-05-01):
 # The decree doesn't say anything about daylight saving, but for now let's
-# assume that it is daylight saving and that they'll switch back on the
-# 3rd Sunday in September.
+# assume that it is daylight saving....
 #
 # From Gwillim Law (2005-04-21):
 # The Associated Press story on the time change, which can be found at
@@ -2086,20 +2272,28 @@ Zone America/Montserrat	-4:08:52 -	LMT	1911 Jul 1 0:01   # Olveston
 # http://www.presidencia.gob.ni/presidencia/files_index/secretaria/comunicados/2005/septiembre/26septiembre-cambio-hora.htm
 # (2005-09-26)
 #
+# From Jesper Norgaard Welen (2006-05-05):
+# http://www.elnuevodiario.com.ni/2006/05/01/nacionales/18410
+# (my informal translation)
+# By order of the president of the republic, Enrique Bolanos, Nicaragua
+# advanced by sixty minutes their official time, yesterday at 2 in the
+# morning, and will stay that way until 30.th. of september.
+#
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Nic	1979	1980	-	Mar	Sun>=16	0:00	1:00	D
 Rule	Nic	1979	1980	-	Jun	Mon>=23	0:00	0	S
-Rule	Nic	1992	only	-	Jan	 1	4:00	1:00	D
-Rule	Nic	1992	only	-	Sep	24	0:00	0	S
 Rule	Nic	2005	only	-	Apr	10	0:00	1:00	D
-Rule	Nic	2005	only	-	Oct	 2	0:00	0	S
+Rule	Nic	2005	2006	-	Oct	Sun>=1	0:00	0	S
+Rule	Nic	2006	only	-	Apr	30	2:00	1:00	D
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Managua	-5:45:08 -	LMT	1890
 			-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
-			-5:00	-	EST	1998 Dec
+			-6:00	Nic	C%sT	1992 Jan  1 4:00
+			-5:00	-	EST	1992 Sep 24
+			-6:00	-	CST	1993
+			-5:00	-	EST	1997
 			-6:00	Nic	C%sT
 
 # Panama
@@ -2113,7 +2307,7 @@ Zone	America/Panama	-5:18:08 -	LMT	1890
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Puerto_Rico -4:24:25 -	LMT	1899 Mar 28 12:00    # San Juan
 			-4:00	-	AST	1942 May  3
-			-4:00	1:00	AWT	1945 Sep 30  2:00
+			-4:00	US	A%sT	1946
 			-4:00	-	AST
 
 # St Kitts-Nevis
@@ -2142,8 +2336,8 @@ Zone America/St_Vincent	-4:04:56 -	LMT	1890		# Kingstown
 			-4:00	-	AST
 
 # Turks and Caicos
-# From Paul Eggert (1998-08-06):
-# Shanks says they use US DST rules, but IATA SSIM (1991/1998)
+# From Paul Eggert (2006-03-22):
+# Shanks & Pottenger say they use US DST rules, but IATA SSIM (1991/1998)
 # says they switch at midnight.  Go with IATA SSIM.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	TC	1979	1986	-	Apr	lastSun	0:00	1:00	D
diff --git a/share/zoneinfo/pacificnew b/share/zoneinfo/pacificnew
index 86dd68834113..667940bf539d 100644
--- a/share/zoneinfo/pacificnew
+++ b/share/zoneinfo/pacificnew
@@ -1,4 +1,4 @@
-# @(#)pacificnew	7.10
+# @(#)pacificnew	8.1
 
 # From Arthur David Olson (1989-04-05):
 # On 1989-04-05, the U. S. House of Representatives passed (238-154) a bill
diff --git a/share/zoneinfo/solar87 b/share/zoneinfo/solar87
index 21ba2c2d6485..71839320ad51 100644
--- a/share/zoneinfo/solar87
+++ b/share/zoneinfo/solar87
@@ -1,4 +1,4 @@
-# @(#)solar87	7.4
+# @(#)solar87	8.1
 
 # So much for footnotes about Saudi Arabia.
 # Apparent noon times below are for Riyadh; your mileage will vary.
diff --git a/share/zoneinfo/solar88 b/share/zoneinfo/solar88
index 7e15f2b07749..b4cfe8e37a8c 100644
--- a/share/zoneinfo/solar88
+++ b/share/zoneinfo/solar88
@@ -1,4 +1,4 @@
-# @(#)solar88	7.4
+# @(#)solar88	8.1
 
 # Apparent noon times below are for Riyadh; they're a bit off for other places.
 # Times were computed using formulas in the U.S. Naval Observatory's
diff --git a/share/zoneinfo/solar89 b/share/zoneinfo/solar89
index 3c36b6a30dd2..8c4853146177 100644
--- a/share/zoneinfo/solar89
+++ b/share/zoneinfo/solar89
@@ -1,4 +1,4 @@
-# @(#)solar89	7.5
+# @(#)solar89	8.1
 
 # Apparent noon times below are for Riyadh; they're a bit off for other places.
 # Times were computed using a formula provided by the U. S. Naval Observatory:
diff --git a/share/zoneinfo/southamerica b/share/zoneinfo/southamerica
index eb7b5c7d8492..3503074ab899 100644
--- a/share/zoneinfo/southamerica
+++ b/share/zoneinfo/southamerica
@@ -1,14 +1,14 @@
-# @(#)southamerica	7.66
+# @(#)southamerica	8.3
 # 
 
 # 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
 # tz@elsie.nci.nih.gov for general use in the future).
 
-# From Paul Eggert (1999-07-07):
+# From Paul Eggert (2006-03-22):
 # A good source for time zone historical data outside the U.S. is
-# Thomas G. Shanks, The International Atlas (5th edition),
-# San Diego: ACS Publications, Inc. (1999).
+# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
+# San Diego: ACS Publications, Inc. (2003).
 #
 # Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
@@ -16,8 +16,8 @@
 # published semiannually.  Law sent in several helpful summaries
 # of the IATA's data after 1990.
 #
-# Except where otherwise noted, Shanks is the source for entries through 1990,
-# and IATA SSIM is the source for entries after 1990.
+# Except where otherwise noted, Shanks & Pottenger is the source for
+# entries through 1990, and IATA SSIM is the source for entries afterwards.
 #
 # Earlier editions of these tables used the North American style (e.g. ARST and
 # ARDT for Argentine Standard and Daylight Time), but the following quote
@@ -92,8 +92,6 @@ Rule	Arg	1988	only	-	Dec	 1	0:00	1:00	S
 # obtaining the data from the:
 # Talleres de Hidrografia Naval Argentina
 # (Argentine Naval Hydrography Institute)
-#
-# Shanks stops after 1992-03-01; go with Otero.
 Rule	Arg	1989	1993	-	Mar	Sun>=1	0:00	0	-
 Rule	Arg	1989	1992	-	Oct	Sun>=15	0:00	1:00	S
 #
@@ -150,12 +148,12 @@ Rule	Arg	2000	only	-	Mar	Sun>=1	0:00	0	-
 # It's Law No. 7,210.  This change is due to a public power emergency, so for
 # now we'll assume it's for this year only.
 #
-# From Paul Eggert (2002-01-22):
+# From Paul Eggert (2006-03-22):
 # 
-# Hora de verano para la Republica Argentina (2000-10-01)
+# Hora de verano para la Republica Argentina (2003-06-08)
 #  says that standard time in Argentina from 1894-10-31
 # to 1920-05-01 was -4:16:48.25.  Go with this more-precise value
-# over Shanks.
+# over Shanks & Pottenger.
 #
 # From Mariano Absatz (2004-06-05):
 # These media articles from a major newspaper mostly cover the current state:
@@ -202,8 +200,8 @@ Rule	Arg	2000	only	-	Mar	Sun>=1	0:00	0	-
 # http://www.sanjuan.gov.ar/prensa/archivo/000426.html
 # http://www.sanjuan.gov.ar/prensa/archivo/000441.html
 
-# Unless otherwise specified, data are from Shanks through 1992, from
-# the IATA otherwise.  As noted below, Shanks says that
+# Unless otherwise specified, data are from Shanks & Pottenger through 1992,
+# from the IATA otherwise.  As noted below, Shanks & Pottenger say that
 # America/Cordoba split into 6 subregions during 1991/1992, but we
 # haven't verified this yet so for now we'll keep it a single region.
 #
@@ -222,7 +220,7 @@ Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31
 # Formosa (FM), Salta (SA), Santiago del Estero (SE), Cordoba (CB),
 # San Luis (SL), La Pampa (LP), Neuquen (NQ), Rio Negro (RN)
 #
-# Shanks also makes the following claims, which we haven't verified:
+# Shanks & Pottenger also make the following claims, which we haven't verified:
 # - Formosa switched to -3:00 on 1991-01-07.
 # - Misiones switched to -3:00 on 1990-12-29.
 # - Chaco switched to -3:00 on 1991-01-04.
@@ -712,7 +710,7 @@ Zone America/Rio_Branco	-4:31:12 -	LMT	1914
 # 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....
+# ... [Shanks & Pottenger have] it....
 #
 # My translation:
 #
@@ -724,8 +722,8 @@ Zone America/Rio_Branco	-4:31:12 -	LMT	1914
 # 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.
+# From Paul Eggert (2006-03-22):
+# Go with Law in preference to Shanks & Pottenger's 1969 date for modern DST.
 # Assume this rule has been used since DST was introduced in the islands.
 
 # From Paul Eggert (2002-10-24):
@@ -752,7 +750,7 @@ Zone America/Santiago	-4:42:40 -	LMT	1890
 			-4:00	Chile	CL%sT
 Zone Pacific/Easter	-7:17:28 -	LMT	1890	    # Mataveri
 			-7:17:28 -	MMT	1932 Sep    # Mataveri Mean Time
-			-7:00	Chile	EAS%sT	1982 Mar 14 # Easter I Time
+			-7:00	Chile	EAS%sT	1982 Mar 13 21:00 # Easter I Time
 			-6:00	Chile	EAS%sT
 #
 # Sala y Gomez Island is like Pacific/Easter.
@@ -760,11 +758,9 @@ Zone Pacific/Easter	-7:17:28 -	LMT	1890	    # Mataveri
 # San Felix, and Antarctic bases, are like America/Santiago.
 
 # Colombia
-# Shanks specifies 24:00 for 1992 transition times; go with IATA,
-# as it seems implausible to change clocks at midnight New Year's Eve.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	CO	1992	only	-	May	 2	0:00	1:00	S
-Rule	CO	1992	only	-	Dec	31	0:00	0	-
+Rule	CO	1992	only	-	May	 3	0:00	1:00	S
+Rule	CO	1993	only	-	Apr	 4	0:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Bogota	-4:56:20 -	LMT	1884 Mar 13
 			-4:56:20 -	BMT	1914 Nov 23 # Bogota Mean Time
@@ -773,10 +769,21 @@ Zone	America/Bogota	-4:56:20 -	LMT	1884 Mar 13
 # no information; probably like America/Bogota
 
 # Curacao
-# Shanks says that Bottom and Oranjestad have been at -4:00 since
-# standard time was introduced on 1912-03-02; and that Kralendijk and Rincon
-# used Kralendijk Mean Time (-4:33:08) from 1912-02-02 to 1965-01-01.
-# This all predates our 1970 cutoff, though.
+#
+# From Paul Eggert (2006-03-22): 
+# Shanks & Pottenger say that The Bottom and Philipsburg have been at
+# -4:00 since standard time was introduced on 1912-03-02; and that
+# Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from
+# 1912-02-02 to 1965-01-01.  The former is dubious, since S&P also say
+# Saba Island has been like Curacao.
+# This all predates our 1970 cutoff, though.  
+#
+# By July 2007 Curacao and St Maarten are planned to become
+# associated states within the Netherlands, much like Aruba;
+# Bonaire, Saba and St Eustatius would become directly part of the
+# Netherlands as Kingdom Islands.  This won't affect their time zones
+# though, as far as we know.
+# 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Curacao	-4:35:44 -	LMT	1912 Feb 12	# Willemstad
 			-4:30	-	ANT	1965 # Netherlands Antilles Time
@@ -793,9 +800,9 @@ Zone Pacific/Galapagos	-5:58:24 -	LMT	1931 # Puerto Baquerizo Moreno
 
 # Falklands
 
-# From Paul Eggert (2001-03-05):
-# Between 1990 and 2000 inclusive, Shanks and the IATA agree except
-# the IATA gives 1996-09-08.  Go with Shanks.
+# From Paul Eggert (2006-03-22):
+# Between 1990 and 2000 inclusive, Shanks & Pottenger and the IATA agree except
+# the IATA gives 1996-09-08.  Go with Shanks & Pottenger.
 
 # From Falkland Islands Government Office, London (2001-01-22)
 # via Jesper Norgaard:
@@ -878,9 +885,9 @@ Zone	America/Guyana	-3:52:40 -	LMT	1915 Mar	# Georgetown
 			-4:00	-	GYT
 
 # Paraguay
-# From Paul Eggert (1999-10-29):
-# Shanks (1999) says that spring transitions are from 01:00 -> 02:00,
-# and autumn transitions are from 00:00 -> 23:00.  Go with earlier
+# From Paul Eggert (2006-03-22):
+# Shanks & Pottenger say that spring transitions are from 01:00 -> 02:00,
+# and autumn transitions are from 00:00 -> 23:00.  Go with pre-1999
 # editions of Shanks, and with the IATA, who say transitions occur at 00:00.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Para	1975	1988	-	Oct	 1	0:00	1:00	S
@@ -915,9 +922,9 @@ Rule	Para	1996	only	-	Mar	 1	0:00	0	-
 # http://gateway.abc.com.py:8000/pub/pag04.mbr/artic?FHA=2001-03-03-02.24.52.900592
 #
 Rule	Para	1996	2001	-	Oct	Sun>=1	0:00	1:00	S
-# IATA SSIM (1997-09) says Mar 1; go with Shanks.
+# IATA SSIM (1997-09) says Mar 1; go with Shanks & Pottenger.
 Rule	Para	1997	only	-	Feb	lastSun	0:00	0	-
-# Shanks says 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but
+# Shanks & Pottenger say 1999-02-28; IATA SSIM (1999-02) says 1999-02-27, but
 # (1999-09) reports no date; go with above sources and Gerd Knops (2001-02-27).
 Rule	Para	1998	2001	-	Mar	Sun>=1	0:00	0	-
 # From Rives McDow (2002-02-28):
@@ -949,8 +956,8 @@ Zone America/Asuncion	-3:50:40 -	LMT	1890
 # When we were in Peru in 1985-1986, they apparently switched over
 # sometime between December 29 and January 3 while we were on the Amazon.
 #
-# From Paul Eggert (2003-11-02):
-# Shanks doesn't have this transition.  Assume 1986 was like 1987.
+# From Paul Eggert (2006-03-22):
+# Shanks & Pottenger don't have this transition.  Assume 1986 was like 1987.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Peru	1938	only	-	Jan	 1	0:00	1:00	S
@@ -961,7 +968,7 @@ Rule	Peru	1986	1987	-	Jan	 1	0:00	1:00	S
 Rule	Peru	1986	1987	-	Apr	 1	0:00	0	-
 Rule	Peru	1990	only	-	Jan	 1	0:00	1:00	S
 Rule	Peru	1990	only	-	Apr	 1	0:00	0	-
-# IATA is ambiguous for 1993/1995; go with Shanks.
+# IATA is ambiguous for 1993/1995; go with Shanks & Pottenger.
 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]
@@ -994,23 +1001,23 @@ Zone America/Port_of_Spain -4:06:04 -	LMT	1912 Mar 2
 # Uruguay
 # From Paul Eggert (1993-11-18):
 # Uruguay wins the prize for the strangest peacetime manipulation of the rules.
-# From Shanks:
+# From Shanks & Pottenger:
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-# Whitman gives 1923 Oct 1; go with Shanks.
+# Whitman gives 1923 Oct 1; go with Shanks & Pottenger.
 Rule	Uruguay	1923	only	-	Oct	 2	 0:00	0:30	HS
 Rule	Uruguay	1924	1926	-	Apr	 1	 0:00	0	-
 Rule	Uruguay	1924	1925	-	Oct	 1	 0:00	0:30	HS
 Rule	Uruguay	1933	1935	-	Oct	lastSun	 0:00	0:30	HS
-# Shanks gives 1935 Apr 1 0:00 and 1936 Mar 30 0:00; go with Whitman.
+# Shanks & Pottenger give 1935 Apr 1 0:00 & 1936 Mar 30 0:00; go with Whitman.
 Rule	Uruguay	1934	1936	-	Mar	Sat>=25	23:30s	0	-
 Rule	Uruguay	1936	only	-	Nov	 1	 0:00	0:30	HS
 Rule	Uruguay	1937	1941	-	Mar	lastSun	 0:00	0	-
-# Whitman gives 1937 Oct 3; go with Shanks.
+# Whitman gives 1937 Oct 3; go with Shanks & Pottenger.
 Rule	Uruguay	1937	1940	-	Oct	lastSun	 0:00	0:30	HS
 # Whitman gives 1941 Oct 24 - 1942 Mar 27, 1942 Dec 14 - 1943 Apr 13,
-# and 1943 Apr 13 ``to present time''; go with Shanks.
-Rule	Uruguay	1941	only	-	Aug	 1	 0:00	0	-
-Rule	Uruguay	1942	only	-	Jan	 1	 0:00	0:30	HS
+# and 1943 Apr 13 ``to present time''; go with Shanks & Pottenger.
+Rule	Uruguay	1941	only	-	Aug	 1	 0:00	0:30	HS
+Rule	Uruguay	1942	only	-	Jan	 1	 0:00	0	-
 Rule	Uruguay	1942	only	-	Dec	14	 0:00	1:00	S
 Rule	Uruguay	1943	only	-	Mar	14	 0:00	0	-
 Rule	Uruguay	1959	only	-	May	24	 0:00	1:00	S
@@ -1036,7 +1043,7 @@ Rule	Uruguay	1988	only	-	Mar	14	 0:00	0	-
 Rule	Uruguay	1988	only	-	Dec	11	 0:00	1:00	S
 Rule	Uruguay	1989	only	-	Mar	12	 0:00	0	-
 Rule	Uruguay	1989	only	-	Oct	29	 0:00	1:00	S
-# Shanks says no DST was observed in 1990/1 and 1991/2,
+# Shanks & Pottenger say no DST was observed in 1990/1 and 1991/2,
 # and that 1992/3's DST was from 10-25 to 03-01.  Go with IATA.
 Rule	Uruguay	1990	1992	-	Mar	Sun>=1	 0:00	0	-
 Rule	Uruguay	1990	1991	-	Oct	Sun>=21	 0:00	1:00	S
diff --git a/share/zoneinfo/systemv b/share/zoneinfo/systemv
index a5b4209c3f26..6cf9645de026 100644
--- a/share/zoneinfo/systemv
+++ b/share/zoneinfo/systemv
@@ -1,4 +1,4 @@
-# @(#)systemv	7.5
+# @(#)systemv	8.1
 
 # Old rules, should the need arise.
 # No attempt is made to handle Newfoundland, since it cannot be expressed
diff --git a/share/zoneinfo/yearistype.sh b/share/zoneinfo/yearistype.sh
index d3a248032ebd..bba14a94297c 100755
--- a/share/zoneinfo/yearistype.sh
+++ b/share/zoneinfo/yearistype.sh
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-: '@(#)yearistype.sh	7.8'
+: '@(#)yearistype.sh	8.1'
 
 case $#-$1 in
 	2-|2-0*|2-*[!0-9]*)
diff --git a/share/zoneinfo/zone.tab b/share/zoneinfo/zone.tab
index d9b278b0ec0f..13e384058062 100644
--- a/share/zoneinfo/zone.tab
+++ b/share/zoneinfo/zone.tab
@@ -1,4 +1,4 @@
-# @(#)zone.tab	1.32
+# @(#)zone.tab	8.3
 #
 # TZ zone descriptions
 #
@@ -100,8 +100,9 @@ BW	-2545+02555	Africa/Gaborone
 BY	+5354+02734	Europe/Minsk
 BZ	+1730-08812	America/Belize
 CA	+4734-05243	America/St_Johns	Newfoundland Island
-CA	+4439-06336	America/Halifax	Atlantic Time - Nova Scotia (most places), NB, W Labrador, E Quebec & PEI
+CA	+4439-06336	America/Halifax	Atlantic Time - Nova Scotia (most places), W Labrador, E Quebec & PEI
 CA	+4612-05957	America/Glace_Bay	Atlantic Time - Nova Scotia - places that did not observe DST 1966-1971
+CA	+4606-06447	America/Moncton	Atlantic Time - New Brunswick
 CA	+5320-06025	America/Goose_Bay	Atlantic Time - E Labrador
 CA	+4531-07334	America/Montreal	Eastern Time - Quebec - most locations
 CA	+4339-07923	America/Toronto	Eastern Time - Ontario - most locations
@@ -256,7 +257,7 @@ MO	+2214+11335	Asia/Macau
 MP	+1512+14545	Pacific/Saipan
 MQ	+1436-06105	America/Martinique
 MR	+1806-01557	Africa/Nouakchott
-MS	+1644-06213	America/Montserrat
+MS	+1643-06213	America/Montserrat
 MT	+3554+01431	Europe/Malta
 MU	-2010+05730	Indian/Mauritius
 MV	+0410+07330	Indian/Maldives
@@ -370,13 +371,16 @@ US	+404251-0740023	America/New_York	Eastern Time
 US	+421953-0830245	America/Detroit	Eastern Time - Michigan - most locations
 US	+381515-0854534	America/Kentucky/Louisville	Eastern Time - Kentucky - Louisville area
 US	+364947-0845057	America/Kentucky/Monticello	Eastern Time - Kentucky - Wayne County
-US	+394606-0860929	America/Indiana/Indianapolis	Eastern Standard Time - Indiana - most locations
-US	+382232-0862041	America/Indiana/Marengo	Eastern Standard Time - Indiana - Crawford County
-US	+411745-0863730	America/Indiana/Knox	Eastern Standard Time - Indiana - Starke County
-US	+384452-0850402	America/Indiana/Vevay	Eastern Standard Time - Indiana - Switzerland County
+US	+394606-0860929	America/Indiana/Indianapolis	Eastern Time - Indiana - most locations
+US	+382232-0862041	America/Indiana/Marengo	Eastern Time - Indiana - Crawford County
+US	+411745-0863730	America/Indiana/Knox	Eastern Time - Indiana - Starke County
+US	+384452-0850402	America/Indiana/Vevay	Eastern Time - Indiana - Switzerland County
 US	+415100-0873900	America/Chicago	Central Time
-US	+450628-0873651	America/Menominee	Central Time - Michigan - Wisconsin border
+US	+384038-0873143	America/Indiana/Vincennes	Central Time - Indiana - Daviess, Dubois, Knox, Martin, Perry & Pulaski Counties
+US	+382931-0871643	America/Indiana/Petersburg	Central Time - Indiana - Pike County
+US	+450628-0873651	America/Menominee	Central Time - Michigan - Dickinson, Gogebic, Iron & Menominee Counties
 US	+470659-1011757	America/North_Dakota/Center	Central Time - North Dakota - Oliver County
+US	+465042-1012439	America/North_Dakota/New_Salem	Central Time - North Dakota - Morton County (except Mandan area)
 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