diff --git a/tzdata/asia b/tzdata/asia
index 49680931..f501ff91 100644
--- a/tzdata/asia
+++ b/tzdata/asia
@@ -1,4 +1,4 @@
-# @(#)asia	7.72
+# @(#)asia	7.73
 
 # 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
@@ -1011,22 +1011,33 @@ Zone	Asia/Beirut	2:22:00 -	LMT	1880
 Rule	NBorneo	1935	1941	-	Sep	14	0:00	0:20	TS # one-Third Summer
 Rule	NBorneo	1935	1941	-	Dec	14	0:00	0	-
 #
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 # peninsular Malaysia
+# From Paul Eggert (2003-11-01):
+# The data here are taken from Mok Ly Yng (2003-10-30)
+# <http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html>.
+# Before 1901, Penang, Malacca and Singapore each had their own time zone;
+# assume Kuala Lumpur used Malaccan time.
+# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Asia/Kuala_Lumpur	6:46:48 -	LMT	1880
-			6:55:24	-	SMT	1905 Jun # Singapore Mean Time
-			7:00	-	MALT	1933	 # Malaya Time
-			7:20	-	MALT	1942 Feb 15
-			9:00	-	JST	1945 Sep 2
-			7:20	-	MALT	1950
-			7:30	-	MALT	1982 May
+			6:49:00	-	MMT	1901 Jan  1 # Malacca Mean Time
+			6:55:25	-	SMT	1905 Jun  1 # Singapore M.T.
+			7:00	-	MALT	1933 Jan  1 # Malaya Time
+			7:00	0:20	MALST	1936
+			7:20	-	MALT	1941 Sep  1
+			7:30	-	MALT	1942 Feb 16
+			9:00	-	JST	1945 Sep 12
+			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
+# transition dates are from Mok Ly Yng.
+# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Asia/Kuching	7:21:20	-	LMT	1926 Mar
 			7:30	-	BORT	1933	# Borneo Time
-			8:00	NBorneo	BOR%sT	1942
-			9:00	-	JST	1945 Sep 2
-			8:00	-	BORT	1982 May
+			8:00	NBorneo	BOR%sT	1942 Feb 16
+			9:00	-	JST	1945 Sep 12
+			8:00	-	BORT	1982 Jan  1
 			8:00	-	MYT
 
 # Maldives
@@ -1295,15 +1306,18 @@ Zone	Asia/Riyadh	3:06:52 -	LMT	1950
 			3:00	-	AST
 
 # Singapore
+# The data here are taken from Mok Ly Yng (2003-10-30)
+# <http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html>.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Asia/Singapore	6:55:24 -	LMT	1880
-			6:55:24	-	SMT	1905 Jun # Singapore Mean Time
-			7:00	-	MALT	1933	 # Malaya Time
-			7:20	-	MALT	1942 Feb 15
-			9:00	-	JST	1945 Sep  2
-			7:20	-	MALT	1950
+Zone	Asia/Singapore	6:55:25 -	LMT	1880
+			6:55:25	-	SMT	1905 Jun  1 # Singapore M.T.
+			7:00	-	MALT	1933 Jan  1 # Malaya Time
+			7:00	0:20	MALST	1936
+			7:20	-	MALT	1941 Sep  1
+			7:30	-	MALT	1942 Feb 16
+			9:00	-	JST	1945 Sep 12
 			7:30	-	MALT	1965 Aug  9 # independence
-			7:30	-	SGT	1982 May # Singapore Time
+			7:30	-	SGT	1982 Jan  1 # Singapore Time
 			8:00	-	SGT
 
 # Spratly Is
diff --git a/tzdata/europe b/tzdata/europe
index 0bd7ed82..5503a21d 100644
--- a/tzdata/europe
+++ b/tzdata/europe
@@ -1,4 +1,4 @@
-# @(#)europe	7.84
+# @(#)europe	7.86
 
 # 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
@@ -129,7 +129,7 @@
 # transition date for London, namely 1847-12-01.  We don't know as much
 # about Dublin, so we use 1880-08-02, the legal transition time.
 
-# From Paul Eggert (2003-07-29):
+# From Paul Eggert (2003-09-27):
 # Summer Time was first seriously proposed by William Willett (1857-1915),
 # a London builder and member of the Royal Astronomical Society
 # who circulated a pamphlet ``The Waste of Daylight'' (1907)
@@ -141,7 +141,7 @@
 # it was eventually adopted as a wartime measure in 1916.
 # See: Summer Time Arrives Early, The Times (2000-05-18).
 # A monument to Willett was unveiled on 1927-05-21, in an open space in
-# a 45-acre wood near Chiselhurst, Kent that was purchased by popular
+# a 45-acre wood near Chislehurst, Kent that was purchased by popular
 # subscription and open to the public.  On the south face of the monolith,
 # designed by G. W. Miller, is the the William Willett Memorial Sundial,
 # which is permanently set to Summer Time.
@@ -1831,7 +1831,7 @@ Zone Europe/Bucharest	1:44:24 -	LMT	1891 Oct
 #
 # From Andrey A. Chernov <ache@nagual.ru> (1996-10-04):
 # `MSK' and `MSD' were born and used initially on Moscow computers with
-# Unix-like OSes by several developer groups (e.g. Demos group, Kiae group)....
+# UNIX-like OSes by several developer groups (e.g. Demos group, Kiae group)....
 # The next step was the UUCP network, the Relcom predecessor
 # (used mainly for mail), and MSK/MSD was actively used there.
 #
@@ -1952,28 +1952,26 @@ Zone Asia/Irkutsk	 6:57:20 -	LMT	1880
 			 7:00	Russia	IRK%sT	1992 Jan 19 2:00s
 			 8:00	Russia	IRK%sT
 #
-# From Oscar van Vlijmen (2001-08-25): [This region consists of]
+# From Oscar van Vlijmen (2003-10-18): [This region consists of]
 # Aginskij Buryatskij avtonomnyj okrug, Amurskaya oblast',
 # [parts of] Respublika Sakha (Yakutiya), Chitinskaya oblast'.
-#
-# From Alan Pritchard (2001-08-24): [The Sakha districts are:]
-# Aldansky, Amginsky, Anabarsky, Bulunsky, Churapchinsky,
-# Eveno-Bytantaisky, Gorny, Khangalassky, Kobyaisky, Lensky,
-# Megino-Kangalassky, Mirninsky, Namsky, Nyurbinsky, Olenyoksky,
-# Olyokminsky, Srednekolymsky, Suntarsky, Tattinsky, Ust-Aldansky,
-# Verkhnekolymsky, Verkhnevilyuisky, Vilyuisky, Zhigansky.
+# The Sakha districts are: Aldanskij, Amginskij, Anabarskij,
+# Bulunskij, Verkhnekolymskij, Verkhnevilyujskij, Vilyujskij, Gornyj,
+# Zhiganskij, Kobyajskij, Lenskij, Megino-Kangalasskij, Mirninskij,
+# Namskij, Nyurbinskij, Olenekskij, Olekminskij, Srednekolymskij,
+# Suntarskij, Tattinskij, Ust'-Aldanskij, Khangalasskij,
+# Churapchinskij, Eveno-Bytantajskij.
 Zone Asia/Yakutsk	 8:38:40 -	LMT	1919 Dec 15
 			 8:00	-	YAKT	1930 Jun 21 # Yakutsk Time
 			 9:00	Russia	YAK%sT	1991 Mar 31 2:00s
 			 8:00	Russia	YAK%sT	1992 Jan 19 2:00s
 			 9:00	Russia	YAK%sT
 #
-# From Oscar van Vlijmen (2001-08-25): [This region consists of]
+# From Oscar van Vlijmen (2003-10-18): [This region consists of]
 # Evrejskaya avtonomnaya oblast', Khabarovskij kraj, Primorskij kraj,
 # [parts of] Respublika Sakha (Yakutiya).
-#
-# From Alan Pritchard (2001-08-24): [The Sakha districts are:]
-# Tomponsky, Ust-Maisky, Ust-Yansky, Verkhoyansky.
+# The Sakha districts are: Verkhoyanskij, Tomponskij, Ust'-Majskij,
+# Ust'-Yanskij.
 Zone Asia/Vladivostok	 8:47:44 -	LMT	1922 Nov 15
 			 9:00	-	VLAT	1930 Jun 21 # Vladivostok Time
 			10:00	Russia	VLA%sT	1991 Mar 31 2:00s
@@ -1990,11 +1988,11 @@ Zone Asia/Sakhalin	 9:30:48 -	LMT	1905 Aug 23
 			11:00	Russia	SAK%sT	1997 Mar lastSun 2:00s
 			10:00	Russia	SAK%sT
 #
-# From Oscar van Vlijmen (2001-08-25): [This region consists of]
+# From Oscar van Vlijmen (2003-10-18): [This region consists of]
 # Magadanskaya oblast', Respublika Sakha (Yakutiya).
-#
-# From Alan Pritchard (2001-08-24): [The Sakha districts are:]
-# Abyisky, Allaikhovsky, Momsky, Nizhnekolymsky, Oimyakonsky.
+# Probably also: Kuril Islands.
+# The Sakha districts are: Abyjskij, Allaikhovskij, Momskij,
+# Nizhnekolymskij, Ojmyakonskij.
 Zone Asia/Magadan	10:03:12 -	LMT	1924 May  2
 			10:00	-	MAGT	1930 Jun 21 # Magadan Time
 			11:00	Russia	MAG%sT	1991 Mar 31 2:00s
diff --git a/tzdata/iso3166.tab b/tzdata/iso3166.tab
index acd49608..dc8a1d9e 100644
--- a/tzdata/iso3166.tab
+++ b/tzdata/iso3166.tab
@@ -1,6 +1,6 @@
 # ISO 3166 alpha-2 country codes
 #
-# @(#)iso3166.tab	1.9
+# @(#)iso3166.tab	1.14
 #
 # From Paul Eggert <eggert@twinsun.com> (2003-02-04):
 #
diff --git a/tzdata/northamerica b/tzdata/northamerica
index ca4ad5de..fd6aa734 100644
--- a/tzdata/northamerica
+++ b/tzdata/northamerica
@@ -1,4 +1,4 @@
-# @(#)northamerica	7.63
+# @(#)northamerica	7.67
 # also includes Central America and the Caribbean
 
 # This data is by no means authoritative; if you think you know better,
@@ -228,7 +228,9 @@ Zone America/New_York	-4:56:02 -	LMT	1883 Nov 18 12:00
 
 # US central time, represented by Chicago
 
-# Alabama, Arkansas, Florida panhandle, Illinois, western Indiana
+# Alabama, Arkansas, Florida panhandle (Bay, Calhoun, Escambia,
+# Gulf, Holmes, Jackson, Okaloosa, Santa Rosa, Walton, and
+# Washington counties), Illinois, western Indiana
 # (Gibson, Jasper, Lake, LaPorte, Newton, Porter, Posey, Spencer,
 # Vanderburgh, and Warrick counties), Iowa, most of Kansas, western
 # Kentucky, Louisiana, Minnesota, Mississippi, Missouri, eastern
@@ -258,7 +260,7 @@ Zone America/North_Dakota/Center -6:45:12 - LMT	1883 Nov 18 12:00
 
 # US mountain time, represented by Denver
 #
-# Colorado, southern Idaho, far western Kansas, Montana, western
+# Colorado, far western Kansas, Montana, western
 # Nebraska, Nevada border (Jackpot, Owyhee, and Mountain City),
 # New Mexico, southwestern North Dakota, far eastern Oregon,
 # western South Dakota, far western Texas (El Paso County, Hudspeth County,
@@ -280,7 +282,9 @@ Zone America/Denver	-6:59:56 -	LMT	1883 Nov 18 12:00
 
 # US Pacific time, represented by Los Angeles
 #
-# California, northern Idaho, most of Nevada, most of Oregon, and Washington
+# California, northern Idaho (Benewah, Bonner, Boundary, Clearwater,
+# Idaho, Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties),
+# most of Nevada, most of Oregon, and Washington
 #
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER
 Rule	CA	1948	only	-	Mar	14	2:00	1:00	D
@@ -405,14 +409,20 @@ Zone America/Phoenix	-7:28:18 -	LMT	1883 Nov 18 12:00
 			-7:00	-	MST
 # From Arthur David Olson (1988-02-13):
 # A writer from the Inter Tribal Council of Arizona, Inc.,
-# notes in private correspondence dated 12/28/87 that "Presently, only the
+# notes in private correspondence dated 1987-12-28 that "Presently, only the
 # Navajo Nation participates in the Daylight Saving Time policy, due to its
 # large size and location in three states."  (The "only" means that other
 # tribal nations don't use DST.)
 
 Link America/Denver America/Shiprock
 
-# Southern Idaho and eastern Oregon switched four weeks late in 1974.
+# Southern Idaho (Ada, Adams, Bannock, Bear Lake, Bingham, Blaine,
+# Boise, Bonneville, Butte, Camas, Canyon, Caribou, Cassia, Clark,
+# Custer, Elmore, Franklin, Fremont, Gem, Gooding, Jefferson, Jerome,
+# Lemhi, Lincoln, Madison, Minidoka, Oneida, Owyhee, Payette, Power,
+# Teton, Twin Falls, Valley, Washington counties) and eastern Oregon
+# switched four weeks late in 1974.
+# 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Boise	-7:44:49 -	LMT	1883 Nov 18 12:00
 			-8:00	US	P%sT	1923 May 13 2:00
@@ -951,10 +961,18 @@ Rule	Mont	1922	only	-	Apr	30	2:00	1:00	D
 Rule	Mont	1924	only	-	May	17	2:00	1:00	D
 Rule	Mont	1924	1926	-	Sep	lastSun	2:30	0	S
 Rule	Mont	1925	1926	-	May	Sun>=1	2:00	1:00	D
-Rule	Mont	1927	1937	-	Apr	lastSat	24:00	1:00	D
-Rule	Mont	1927	1937	-	Sep	lastSat	24:00	0	S
-Rule	Mont	1938	1940	-	Apr	lastSun	0:00	1:00	D
-Rule	Mont	1938	1939	-	Sep	lastSun	0:00	0	S
+# The 1927-to-1937 rules can be expressed more simply as
+# Rule	Mont	1927	1937	-	Apr	lastSat	24:00	1:00	D
+# Rule	Mont	1927	1937	-	Sep	lastSat	24:00	0	S
+# The rules below avoid use of 24:00
+# (which pre-1998 versions of zic cannot handle).
+Rule	Mont	1927	only	-	May	1	0:00	1:00	D
+Rule	Mont	1927	1932	-	Sep	lastSun	0:00	0	S
+Rule	Mont	1928	1931	-	Apr	lastSun	0:00	1:00	D
+Rule	Mont	1932	only	-	May	1	0:00	1:00	D
+Rule	Mont	1933	1940	-	Apr	lastSun	0:00	1:00	D
+Rule	Mont	1933	only	-	Oct	1	0:00	0	S
+Rule	Mont	1934	1939	-	Sep	lastSun	0:00	0	S
 Rule	Mont	1946	1973	-	Apr	lastSun	2:00	1:00	D
 Rule	Mont	1945	1948	-	Sep	lastSun	2:00	0	S
 Rule	Mont	1949	1950	-	Oct	lastSun	2:00	0	S
@@ -971,14 +989,12 @@ 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.
 Rule	Toronto	1922	1926	-	Sep	Sun>=15	2:00	0	S
 Rule	Toronto	1924	1927	-	May	Sun>=1	2:00	1:00	D
-Rule	Toronto	1927	1928	-	Sep	lastSun	2:00	0	S
-Rule	Toronto	1928	only	-	Apr	lastSun	2:00	1:00	D
-Rule	Toronto	1929	only	-	Apr	lastSun	0:00	1:00	D
-Rule	Toronto	1929	only	-	Sep	lastSun	0:00	0	S
-Rule	Toronto	1930	1937	-	Apr	lastSat	24:00	1:00	D
-Rule	Toronto	1930	1937	-	Sep	lastSat	24:00	0	S
-Rule	Toronto	1938	1940	-	Apr	lastSun	0:00	1:00	D
-Rule	Toronto	1938	1939	-	Sep	lastSun	0:00	0	S
+Rule	Toronto	1927	1932	-	Sep	lastSun	2:00	0	S
+Rule	Toronto	1928	1931	-	Apr	lastSun	2:00	1:00	D
+Rule	Toronto	1932	only	-	May	1	2:00	1:00	D
+Rule	Toronto	1933	1940	-	Apr	lastSun	2:00	1:00	D
+Rule	Toronto	1933	only	-	Oct	1	2:00	0	S
+Rule	Toronto	1934	1939	-	Sep	lastSun	2:00	0	S
 Rule	Toronto	1945	1946	-	Sep	lastSun	2:00	0	S
 Rule	Toronto	1946	only	-	Apr	lastSun	2:00	1:00	D
 Rule	Toronto	1947	1949	-	Apr	lastSun	0:00	1:00	D
@@ -996,15 +1012,19 @@ Rule	Toronto	1957	1973	-	Oct	lastSun	2:00	0	S
 # Willett (1914-03) writes (p. 17) "In the Cities of Fort William, and
 # Port Arthur, Ontario, the principle of the Bill has been in
 # operation for the past three years, and in the City of Moose Jaw,
-# Saskatchewan, for one year."  Assume that the Thunder Bay region
-# observed DST starting 1910, and Moose Jaw starting 1912, as this
-# matches the Toronto Star report about Moose Jaw.  For lack of better
-# info, assume the Thunder Bay region used Willett's proposal, namely
-# third Sunday in April at 02:00 to third Sunday in September at
-# 03:00; also assume that they continued until Canada instituted
-# uniform DST in 1918.
-Rule	Thunder	1910	1917	-	Apr	Sun>=15	2:00s	1:00	D
-Rule	Thunder	1910	1917	-	Sep	Sun>=15	2:00s	0	S
+# Saskatchewan, for one year."
+
+# From David Bryan via Tory Tronrud, Director/Curator,
+# Thunder Bay Museum (2003-11-12):
+# There is some suggestion, however, that, by-law or not, daylight
+# savings time was being practiced in Fort William and Port Arthur
+# before 1909.... [I]n 1910, the line between the Eastern and Central
+# Time Zones was permanently moved about two hundred miles west to
+# include the Thunder Bay area....  When Canada adopted daylight
+# savings time in 1916, Fort William and Port Arthur, having done so
+# already, did not change their clocks....  During the Second World
+# War,... [t]he cities agreed to implement DST during the summer
+# months for the remainder of the war years.
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Montreal	-4:54:16 -	LMT	1884
@@ -1021,9 +1041,8 @@ Zone America/Toronto	-5:17:32 -	LMT	1895
 			-5:00	Toronto	E%sT	1974
 			-5:00	Canada	E%sT
 Zone America/Thunder_Bay -5:57:00 -	LMT	1895
-			-5:00	Thunder	E%sT	1918
-			-5:00	Canada	E%sT	1940 Sep 29
-			-5:00	1:00	EDT	1942 Feb  9 2:00s
+			-6:00	-	CST	1910
+			-5:00	-	EST	1942
 			-5:00	Canada	E%sT	1970
 			-5:00	Mont	E%sT	1973
 			-5:00	-	EST	1974
diff --git a/tzdata/southamerica b/tzdata/southamerica
index b423fd25..8528df1c 100644
--- a/tzdata/southamerica
+++ b/tzdata/southamerica
@@ -1,4 +1,4 @@
-# @(#)southamerica	7.49
+# @(#)southamerica	7.50
 
 # 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
@@ -390,9 +390,9 @@ Rule	Brazil	1993	only	-	Jan	31	 0:00	0	-
 # Decree <a href="http://pcdsh01.on.br/HV942.htm">942</a> (1993-09-28)
 # adopted by same states, plus AM.
 # Decree <a href="http://pcdsh01.on.br/HV1252.htm">1,252</a> (1994-09-22)
-# adopted by same states, minus AM.
+# adopted by same states, minus AM and MT.
 # Decree <a href="http://pcdsh01.on.br/HV1636.htm">1,636</a> (1995-09-14)
-# adopted by same states, plus TO.
+# adopted by same states, plus MT and TO.
 # Decree <a href="http://pcdsh01.on.br/HV1674.htm">1,674</a> (1995-10-13)
 # adds AL, SE.
 Rule	Brazil	1993	1995	-	Oct	Sun>=11	 0:00	1:00	S
@@ -455,11 +455,19 @@ Rule	Brazil	2003	max	-	Oct	Sun>=15	 0:00	1:00	S
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 #
-# Atlantic islands: Fernando de Noronha, Trindade, Martin Vaz,
-# Atol das Rocas, and Penedos de Sao Pedro e Sao Paulo
+# Fernando de Noronha (administratively part of PE)
 Zone America/Noronha	-2:09:40 -	LMT	1914
 			-2:00	Brazil	FN%sT	1990 Sep 17
+			-2:00	-	FNT	1999 Sep 30
+			-2:00	Brazil	FN%sT	2000 Oct 15
+			-2:00	-	FNT	2001 Sep 13
+			-2:00	Brazil	FN%sT	2002 Oct  1
 			-2:00	-	FNT
+# Other Atlantic islands have no permanent settlement.
+# These include Trindade and Martin Vaz (administratively part of ES),
+# Atol das Rocas (RN), and Penedos de Sao Pedro e Sao Paulo (PE).
+# Fernando de Noronha was a separate territory from 1942-09-02 to 1989-01-01;
+# it also included the Penedos.
 #
 # Amapa (AP), east Para (PA)
 # East Para includes Belem, Maraba, Serra Norte, and Sao Felix do Xingu.
@@ -528,6 +536,8 @@ Zone America/Campo_Grande -3:38:28 -	LMT	1914
 #
 # Mato Grosso (MT)
 Zone America/Cuiaba	-3:44:20 -	LMT	1914
+			-4:00	Brazil	AM%sT	1994 Sep 22
+			-4:00	-	AMT	1995 Sep 14
 			-4:00	Brazil	AM%sT	2003 Sep 24
 			-4:00	-	AMT
 #
@@ -811,13 +821,22 @@ Zone America/Asuncion	-3:50:40 -	LMT	1890
 			-4:00	Para	PY%sT
 
 # Peru
+#
+# <a href="news:xrGmb.39935$gA1.13896113@news4.srv.hcvlny.cv.net">
+# From Evelyn C. Leeper via Mark Brader (2003-10-26):</a>
+# 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.
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Peru	1938	only	-	Jan	 1	0:00	1:00	S
 Rule	Peru	1938	only	-	Apr	 1	0:00	0	-
 Rule	Peru	1938	1939	-	Sep	lastSun	0:00	1:00	S
 Rule	Peru	1939	1940	-	Mar	Sun>=24	0:00	0	-
-Rule	Peru	1987	only	-	Jan	 1	0:00	1:00	S
-Rule	Peru	1987	only	-	Apr	 1	0:00	0	-
+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.
diff --git a/zoneinfo/America/Cuiaba.ics b/zoneinfo/America/Cuiaba.ics
index 71a7b7e4..aaf6a575 100644
--- a/zoneinfo/America/Cuiaba.ics
+++ b/zoneinfo/America/Cuiaba.ics
@@ -2,8 +2,8 @@ BEGIN:VCALENDAR
 PRODID:-//github.com/libical/vzic//NONSGML ICS//EN
 VERSION:2.0
 BEGIN:VTIMEZONE
-TZID:/github.com/libical/tzdbics/20221031_2003d/America/Cuiaba
-LAST-MODIFIED:20221031T142033Z
+TZID:/github.com/libical/tzdbics/20221031_2003e/America/Cuiaba
+LAST-MODIFIED:20221031T142140Z
 X-LIC-LOCATION:America/Cuiaba
 X-PROLEPTIC-TZNAME:LMT
 BEGIN:STANDARD
@@ -27,6 +27,8 @@ RDATE:19891015T000000
 RDATE:19901021T000000
 RDATE:19911020T000000
 RDATE:19921025T000000
+RDATE:19931017T000000
+RDATE:19951015T000000
 RDATE:19981011T000000
 RDATE:19991003T000000
 RDATE:20021103T000000
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 RDATE:19920209T000000
 RDATE:19930131T000000
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 RDATE:19970216T000000
 RDATE:19980301T000000
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diff --git a/zoneinfo/America/Lima.ics b/zoneinfo/America/Lima.ics
index b95f83eb..a9e4d647 100644
--- a/zoneinfo/America/Lima.ics
+++ b/zoneinfo/America/Lima.ics
@@ -2,8 +2,8 @@ BEGIN:VCALENDAR
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 BEGIN:VTIMEZONE
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+TZID:/github.com/libical/tzdbics/20221031_2003e/America/Lima
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 X-PROLEPTIC-TZNAME:LMT
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@@ -23,7 +23,6 @@ TZNAME:PEST
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 END:STANDARD
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diff --git a/zoneinfo/America/Montreal.ics b/zoneinfo/America/Montreal.ics
index ff0c0f54..4de96efa 100644
--- a/zoneinfo/America/Montreal.ics
+++ b/zoneinfo/America/Montreal.ics
@@ -2,8 +2,8 @@ BEGIN:VCALENDAR
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 BEGIN:VTIMEZONE
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+TZID:/github.com/libical/tzdbics/20221031_2003e/America/Montreal
+LAST-MODIFIED:20221031T142140Z
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@@ -23,6 +23,8 @@ RDATE:19200502T023000
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@@ -31,6 +33,7 @@ TZOFFSETTO:-0500
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 TZOFFSETFROM:-0500
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diff --git a/zoneinfo/America/Noronha.ics b/zoneinfo/America/Noronha.ics
index 010fa6bc..92aa221b 100644
--- a/zoneinfo/America/Noronha.ics
+++ b/zoneinfo/America/Noronha.ics
@@ -2,8 +2,8 @@ BEGIN:VCALENDAR
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 BEGIN:VTIMEZONE
-TZID:/github.com/libical/tzdbics/20221031_2000f/America/Noronha
-LAST-MODIFIED:20221031T140346Z
+TZID:/github.com/libical/tzdbics/20221031_2003e/America/Noronha
+LAST-MODIFIED:20221031T142140Z
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 X-PROLEPTIC-TZNAME:LMT
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@@ -24,6 +24,7 @@ RDATE:19651201T000000
 RDATE:19851102T000000
 RDATE:19881016T000000
 RDATE:19891015T000000
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@@ -52,6 +53,9 @@ RDATE:19870214T000000
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 RDATE:19890129T000000
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 DTSTART:19861025T000000
 RRULE:FREQ=YEARLY;UNTIL=19871025T020000Z
 END:DAYLIGHT
+BEGIN:DAYLIGHT
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 END:VTIMEZONE
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index 2986c5c9..351e46fe 100644
--- a/zoneinfo/America/Thunder_Bay.ics
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-LAST-MODIFIED:20221031T142033Z
+TZID:/github.com/libical/tzdbics/20221031_2003e/America/Thunder_Bay
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 TZNAME:EPT
@@ -58,6 +30,12 @@ TZOFFSETFROM:-0400
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 END:DAYLIGHT
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 TZOFFSETFROM:-0500
diff --git a/zoneinfo/America/Toronto.ics b/zoneinfo/America/Toronto.ics
index af9bebf4..4f4760e1 100644
--- a/zoneinfo/America/Toronto.ics
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+TZID:/github.com/libical/tzdbics/20221031_2003e/America/Toronto
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diff --git a/zoneinfo/Asia/Kuala_Lumpur.ics b/zoneinfo/Asia/Kuala_Lumpur.ics
index bf8d46f6..7d134ee9 100644
--- a/zoneinfo/Asia/Kuala_Lumpur.ics
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+TZID:/github.com/libical/tzdbics/20221031_2003e/Asia/Kuala_Lumpur
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diff --git a/zoneinfo/Asia/Kuching.ics b/zoneinfo/Asia/Kuching.ics
index 1aa951fc..4014c1d3 100644
--- a/zoneinfo/Asia/Kuching.ics
+++ b/zoneinfo/Asia/Kuching.ics
@@ -2,8 +2,8 @@ BEGIN:VCALENDAR
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 BEGIN:VTIMEZONE
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diff --git a/zoneinfo/Asia/Singapore.ics b/zoneinfo/Asia/Singapore.ics
index 51dc1931..fbd2f2c6 100644
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+TZID:/github.com/libical/tzdbics/20221031_2003e/Asia/Singapore
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