1996 `L' release of timezone data files. Includes corrections for historicalvendor/tzdata/tzdata1996l

data in several locations.

Obtained from:	ado@elsie.nci.nih.gov, ftp://elsie.nci.nih.gov/pub

9 files changed, 647 insertions, 222 deletions

diff --git a/share/zoneinfo/africa b/share/zoneinfo/africa
index a3a28c95eada..49f39fbfab1b 100644
--- a/share/zoneinfo/africa
+++ b/share/zoneinfo/africa
@@ -1,15 +1,23 @@
-# @(#)africa	7.15
+# @(#)africa	7.16
 
 # 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 <eggert@twinsun.com> (1996-09-03):
+# From Paul Eggert <eggert@twinsun.com> (1996-11-22):
 #
 # A good source for time zone historical data outside the U.S. is
 # Thomas G. Shanks, The International Atlas (3rd edition),
 # San Diego: ACS Publications, Inc. (1991).
-# Except where otherwise noted, it is the source for the data below.
+#
+# Gwillim Law <LAW@encmail.encompass.com> writes that a good source
+# for recent time zone data is the International Air Transport
+# Association's Standard Schedules Information Manual (IATA SSIM),
+# published semiannually.  Law sent in several helpful summaries
+# 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.
 #
 # Another source occasionally used is Edward W. Whitman, World Time Differences,
 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
@@ -255,12 +263,17 @@ Rule	Egypt	1957	1958	-	Oct	 1	0:00	0	-
 Rule	Egypt	1958	only	-	May	 1	0:00	1:00	S
 Rule	Egypt	1959	1981	-	May	 1	1:00	1:00	S
 Rule	Egypt	1959	1965	-	Sep	30	3:00	0	-
-Rule	Egypt	1966	max	-	Oct	 1	3:00	0	-
+Rule	Egypt	1966	1990	-	Oct	 1	3:00	0	-
 Rule	Egypt	1982	only	-	Jul	25	1:00	1:00	S
 Rule	Egypt	1983	only	-	Jul	12	1:00	1:00	S
 Rule	Egypt	1984	1988	-	May	 1	1:00	1:00	S
 Rule	Egypt	1989	only	-	May	 6	1:00	1:00	S
-Rule	Egypt	1990	max	-	May	 1	1:00	1:00	S
+Rule	Egypt	1990	only	-	May	 1	1:00	1:00	S
+Rule	Egypt	1991	1994	-	May	 1	0:00	1:00	S
+Rule	Egypt	1991	1994	-	Oct	 1	0:00	0	-
+Rule	Egypt	1995	max	-	Apr	lastFri	0:00	1:00	S
+Rule	Egypt	1995	max	-	Sep	lastFri	0:00	0	-
+
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Cairo	2:05:00 -	LMT	1900 Oct
 			2:00	Egypt	EE%sT
@@ -390,15 +403,15 @@ Rule	Libya	1986	only	-	Oct	 3	0:00	0	-
 Rule	Libya	1987	1989	-	Apr	 1	0:00	1:00	S
 Rule	Libya	1987	1990	-	Oct	 1	0:00	0	-
 Rule	Libya	1990	only	-	May	 4	0:00	1:00	S
+Rule	Libya	1996	max	-	Mar	30	2:00s	1:00	S
+Rule	Libya	1996	max	-	Sep	30	2:00s	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Tripoli	0:52:44 -	LMT	1920
 			1:00	Libya	CE%sT	1959
 			2:00	-	EET	1982
-# From Paul Eggert <eggert@twinsun.com> (1995-12-19):
-# usno1995 (from OAG) says Libya uses 2:00 all year, as they did before 1982.
-# We don't know when they switched back.  We'll guess 1991.
 			1:00	Libya	CE%sT	1991
-			2:00	-	EET
+			2:00	-	EET	1996 Mar 30 3:00
+			1:00	Libya	CE%sT
 
 # Madagascar
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -442,7 +455,7 @@ Zone	Indian/Mayotte	3:00:56 -	LMT	1911 Jul	# Mamoutzou
 			3:00	-	EAT
 
 # Morocco
-# rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+# RULE	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Morocco	1939	only	-	Sep	12	 0:00	1:00	S
 Rule	Morocco	1939	only	-	Nov	19	 0:00	0	-
 Rule	Morocco	1940	only	-	Feb	25	 0:00	1:00	S
@@ -474,12 +487,15 @@ Zone	Africa/Maputo	2:10:20 -	LMT	1903 Mar
 			2:00	-	SAT
 
 # Namibia
+# RULE	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+Rule	Namibia	1994	max	-	Sep	Sun>=1	2:00	1:00	S
+Rule	Namibia	1995	max	-	Apr	Sun>=1	2:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Windhoek	1:08:24 -	LMT	1892 Feb 8
 			1:30	-	SWAT	1903 Mar	# SW Africa Time
 			2:00	-	SAT	1942 Sep 20 2:00
 			2:00	1:00	SAST	1943 Mar 21 2:00
-			2:00	-	SAT
+			2:00	Namibia	SA%sT
 
 # Niger
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -618,10 +634,9 @@ Rule	Tunisia	1977	only	-	Sep	24	 0:00s	0	-
 Rule	Tunisia	1978	only	-	May	 1	 0:00s	1:00	S
 Rule	Tunisia	1978	only	-	Oct	 1	 0:00s	0	-
 Rule	Tunisia	1988	only	-	Jun	 1	 0:00s	1:00	S
-Rule	Tunisia	1988	max	-	Sep	lastSun	 0:00s	0	-
+Rule	Tunisia	1988	1990	-	Sep	lastSun	 0:00s	0	-
 Rule	Tunisia	1989	only	-	Mar	26	 0:00s	1:00	S
 Rule	Tunisia	1990	only	-	May	 1	 0:00s	1:00	S
-Rule	Tunisia	1991	max	-	Mar	lastSun	 0:00s	1:00	S
 # 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.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
diff --git a/share/zoneinfo/antarctica b/share/zoneinfo/antarctica
index 0c78eb68269d..b4a7d397a34f 100644
--- a/share/zoneinfo/antarctica
+++ b/share/zoneinfo/antarctica
@@ -1,4 +1,4 @@
-# @(#)antarctica	7.4
+# @(#)antarctica	7.5
 
 # From Paul Eggert (1996-09-03):
 # To keep things manageable, we list only locations occupied year-round;
@@ -8,6 +8,20 @@
 # I made up all time zone abbreviations mentioned here; corrections welcome!
 # FORMAT is `___' and GMTOFF is 0 for locations while uninhabited.
 
+# These rules are stolen from the `southamerica' file.
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+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	1974	only	-	Jan	23	0:00	1:00	S
+Rule	ArgAQ	1974	only	-	May	 1	0:00	0	-
+Rule	ArgAQ	1974	1976	-	Oct	Sun<=7	0:00	1:00	S
+Rule	ArgAQ	1975	1977	-	Apr	Sun<=7	0:00	0	-
+Rule	ChileAQ	1969	max	-	Oct	Sun>=9	0:00	1:00	S
+Rule	ChileAQ	1970	max	-	Mar	Sun>=9	0:00	0	-
+
 
 # Argentina - 6 year-round bases
 # General Belgrano II
@@ -118,7 +132,21 @@ Rule	NZAQ	1990	max	-	Mar	Sun>=15	2:00s	0	S
 
 # USA - year-round bases
 #
-# Palmer, Anvers Island
+# Palmer, Anvers Island, since 1965 (moved 2 miles in 1968)
+#
+# From Ethan Dicks <erd@mcmsun5.mcmurdo.gov> (1996-10-06):
+# It keeps the same time as Punta Arenas, Chile, because, just like us
+# and the South Pole, that's the other end of their supply line....
+# I verified with someone who was there that since 1980,
+# Palmer has followed Chile.  Prior to that, before the Falklands War,
+# Palmer used to be supplied from Argentina.
+#
+# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
+Zone Antarctica/Palmer	0	-	___	1965
+			-4:00	ArgAQ	AR%sT	1969 Oct 5
+			-3:00	ArgAQ	AR%sT	1982 May
+			-4:00	ChileAQ	CL%sT
+#
 #
 # McMurdo, Ross Island, since 1956
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
diff --git a/share/zoneinfo/asia b/share/zoneinfo/asia
index b5220f3915cf..7afe922bf473 100644
--- a/share/zoneinfo/asia
+++ b/share/zoneinfo/asia
@@ -1,16 +1,25 @@
-# @(#)asia	7.25
+# @(#)asia	7.26
 
 # 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 <eggert@twinsun.com> (1995-07-24):
+# From Paul Eggert <eggert@twinsun.com> (1996-11-22):
 #
 # A good source for time zone historical data outside the U.S. is
 # Thomas G. Shanks, The International Atlas (3rd edition),
 # San Diego: ACS Publications, Inc. (1991).
 # Except where otherwise noted, it is the source for the data below.
 #
+# Gwillim Law <LAW@encmail.encompass.com> writes that a good source
+# for recent time zone data is the International Air Transport
+# Association's Standard Schedules Information Manual (IATA SSIM),
+# published semiannually.  Law sent in several helpful summaries
+# 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.
+#
 # Another source occasionally used is Edward W. Whitman, World Time Differences,
 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
 # I found in the UCLA library.
@@ -24,7 +33,6 @@
 # Corrections are welcome!
 #		std dst
 #		LMT	Local Mean Time
-#		LST	Local Star Time (Russian ``mestnoe zvezdnoe vremya'')
 #	2:00	EET EEST Eastern European Time
 #	2:00	IST IDT	Israel
 #	3:00	AST ADT	Arabia*
@@ -48,12 +56,22 @@
 
 ###############################################################################
 
-# These rules for Russia are stolen from the `europe' file.
+# These rules are stolen from the `europe' file.
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule RussiaAsia 1981	1984	-	Apr	1	0:00	1:00	S
-Rule RussiaAsia 1981	1983	-	Oct	1	0:00	0	-
-Rule RussiaAsia 1984	max	-	Sep	lastSun	2:00s	0	-
-Rule RussiaAsia 1985	max	-	Mar	lastSun	2:00s	1:00	S
+Rule	EUAsia	1981	max	-	Mar	lastSun	 1:00u	1:00	S
+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	-
+Rule E-EurAsia	1996	max	-	Oct	lastSun	 0:00	0	-
+Rule RussiaAsia	1981	1984	-	Apr	1	 0:00	1:00	S
+Rule RussiaAsia	1981	1983	-	Oct	1	 0:00	0	-
+Rule RussiaAsia	1984	1991	-	Sep	lastSun	 2:00s	0	-
+Rule RussiaAsia	1985	1991	-	Mar	lastSun	 2:00s	1:00	S
+Rule RussiaAsia	1992	only	-	Mar	lastSat	23:00	1:00	S
+Rule RussiaAsia	1992	only	-	Sep	lastSat	23:00	0	-
+Rule RussiaAsia	1993	max	-	Mar	lastSun	 2:00s	1:00	S
+Rule RussiaAsia	1993	1995	-	Sep	lastSun	 2:00s	0	-
+Rule RussiaAsia	1996	max	-	Oct	lastSun	 2:00s	0	-
 
 # Afghanistan
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -85,10 +103,9 @@ Zone	Asia/Baku	3:19:24 -	LMT	1924 May  2
 			3:00	-	BAKT	1957 Mar    # Baku Time
 			4:00 RussiaAsia BAK%sT	1991 Mar 31 2:00s
 			3:00	1:00	BAKST	1991 Aug 30 # independence
-			3:00 RussiaAsia	AZ%sT	1992	    # Azerbaijan Time
-			3:00	-	AZT
-# Shanks has Baku using Russian DST rules after 1991,
-# but usno1995 has Azerbaijan with no DST.  Guess no DST after 1991.
+			3:00 RussiaAsia	AZ%sT	1992 Sep lastSun 2:00s
+			4:00	-	AZT	1996 # Azerbaijan time
+			4:00	EUAsia	AZ%sT
 
 # Bahrain
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -287,18 +304,20 @@ Zone	Asia/Nicosia	2:13:28 -	LMT	1921 Nov 14
 # an MP who went on a hunger strike for 11 days to force discussion about it!
 # We have no details, but we'll guess they didn't move the clocks back in fall.
 #
-# From Paul Eggert (1995-11-13):
-# usno1995 has Georgia at 4:00.  Guess that Georgia stopped transitions
-# after spring 1994 (thus sticking at 4:00).
-# Most likely we're still missing some rule changes between 1991 and 1994.
+# From Mathew Englander <mathew@io.org>, quoting AP (1996-10-23 13:05-04):
+# Instead of putting back clocks at the end of October, Georgia
+# will stay on daylight savings time this winter to save energy,
+# President Eduard Shevardnadze decreed Wednesday.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Tbilisi	2:59:16 -	LMT	1880
 			2:59:16	-	TBMT	1924 May  2 # Tbilisi Mean Time
 			3:00	-	TBIT	1957 Mar    # Tbilisi Time
 			4:00 RussiaAsia TBI%sT	1991 Mar 31 2:00s
 			3:00	1:00	TBIST	1991 Apr  9 # independence
-			3:00 RussiaAsia GE%sT	1994 Sep 25 2:00s # Georgia Time
-			4:00	-	GET
+			3:00 RussiaAsia GE%sT	1992 # Georgia Time
+			3:00 E-EurAsia	GE%sT	1994 Sep lastSun
+			4:00 E-EurAsia	GE%sT	1996 Oct lastSun
+			5:00	-	GET
 
 # India
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -340,6 +359,13 @@ Rule	Iran	1978	1980	-	Mar	21	0:00	1:00	S
 Rule	Iran	1978	only	-	Oct	21	0:00	0	-
 Rule	Iran	1979	only	-	Sep	19	0:00	0	-
 Rule	Iran	1980	only	-	Sep	23	0:00	0	-
+Rule	Iran	1991	only	-	May	 3	0:00s	1:00	S
+Rule	Iran	1991	only	-	Sep	20	0:00s	0	-
+Rule	Iran	1992	only	-	Mar	22	0:00	1:00	S
+Rule	Iran	1992	1993	-	Sep	23	0:00	0	-
+Rule	Iran	1993	max	-	Mar	21	0:00	1:00	S
+Rule	Iran	1994	1995	-	Sep	22	0:00	0	-
+Rule	Iran	1996	max	-	Sep	21	0:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Tehran	3:25:44	-	LMT	1916
 			3:25:44	-	TMT	1946	# Tehran Mean Time
@@ -353,8 +379,11 @@ Rule	Iraq	1982	only	-	May	1	0:00	1:00	D
 Rule	Iraq	1982	1984	-	Oct	1	0:00	0	S
 Rule	Iraq	1983	only	-	Mar	31	0:00	1:00	D
 Rule	Iraq	1984	1985	-	Apr	1	0:00	1:00	D
-Rule	Iraq	1985	max	-	Sep	lastSun	1:00s	0	S
-Rule	Iraq	1986	max	-	Mar	lastSun	1:00s	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.
+Rule	Iraq	1991	max	-	Apr	 1	3:00s	1:00	D
+Rule	Iraq	1991	max	-	Oct	 1	3:00s	0	D
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Baghdad	2:57:40	-	LMT	1890
 			2:57:36	-	BMT	1918	    # Baghdad Mean Time?
@@ -512,9 +541,6 @@ Zone	Asia/Ishigaki	8:16:36	-	LMT	1896
 # Other Japanese possessions are probably like Asia/Tokyo.
 
 # Jordan
-# From Paul Eggert <eggert@twinsun.com> (1993-11-18):
-# Most likely Shanks is merely guessing dates from 1992 on.
-# From Shanks (1991):
 # 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	-
@@ -529,40 +555,56 @@ Rule    Jordan	1986	1988	-	Apr	Fri>=1	0:00	1:00	S
 Rule    Jordan	1986	1990	-	Oct	Fri>=1	0:00	0	-
 Rule    Jordan	1989	only	-	May	8	0:00	1:00	S
 Rule    Jordan	1990	only	-	Apr	27	0:00	1:00	S
-Rule    Jordan	1991	only	-	Apr	19	0:00	1:00	S
+Rule    Jordan	1991	only	-	Apr	17	0:00	1:00	S
 Rule    Jordan	1991	only	-	Sep	27	0:00	0	-
-Rule    Jordan	1992	max	-	Apr	Fri>=1	0:00	1:00	S
-Rule    Jordan	1992	max	-	Oct	Fri>=1	0:00	0	-
+Rule    Jordan	1992	only	-	Apr	10	0:00	1:00	S
+Rule    Jordan	1992	1993	-	Oct	Fri>=1	0:00	0	-
+Rule    Jordan	1993	max	-	Apr	Fri>=1	0:00	1:00	S
+Rule    Jordan	1994	only	-	Sep	Fri>=15	0:00	0	-
+Rule    Jordan	1995	max	-	Sep	Fri>=15	0:00s	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Amman	2:23:44 -	LMT	1931
 			2:00	Jordan	EE%sT
 
 # Kazakhstan
-# From Paul Eggert (1996-04-19):
+# From Paul Eggert (1996-11-22):
 # Andrew Evtichov <evti@chevron.com> (1996-04-13) writes that Kazakhstan
-# stayed in sync with Moscow after 1990, and that Aktau is the biggest city
-# in western Kazakhstan.  Follow Shanks before 1991, Evtichov afterwards.
+# stayed in sync with Moscow after 1990, and that Aqtobe (formerly Aktyubinsk)
+# and Aqtau (formerly Shevchenko) are the largest cities in their zones.
+# Guess that Aqtau and Aqtobe diverged in 1995, since that's the first time
+# IATA SSIM mentions a third time zone in Kazakhstan.
+#
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Alma-Ata	5:07:48 -	LMT	1924 May  2 # or Almaty
 			5:00	-	ALMT	1957 Mar # Alma-Ata Time
 			6:00 RussiaAsia ALM%sT	1991 Mar 31 2:00s
 			5:00	1:00	ALMST	1991 Sep 29 2:00s
 			5:00	-	ALMT	1992 Jan 19 2:00s
-			6:00 RussiaAsia ALM%sT
-Zone	Asia/Aktau	3:21:04	-	LMT	1924 May  2 # or Aqtau
+			6:00 E-EurAsia	ALM%sT
+Zone	Asia/Aqtobe	3:48:40	-	LMT	1924 May  2
+			4:00	-	AKT	1957 Mar # Aktyubinsk Time
+			5:00 RussiaAsia AK%sT	1991 Mar 31 2:00s
+			4:00	1:00	AKTST	1991 Sep 29 2:00s
+			4:00	-	AQTT	1992 Jan 19 2:00s # Aqtobe Time
+			5:00 E-EurAsia	AQT%sT
+Zone	Asia/Aqtau	3:21:04	-	LMT	1924 May  2 # or Aktau
 			4:00	-	SHET	1957 Mar # Fort Shevchenko Time
 			5:00 RussiaAsia SHE%sT	1991 Mar 31 2:00s
-			4:00	1:00	AKTST	1991 Sep 29 2:00s
-			4:00	-	AKTT	1992 Jan 19 2:00s # Aktau Time
-			5:00 RussiaAsia AKT%sT
+			4:00	1:00	AQTST	1991 Sep 29 2:00s
+			4:00	-	AQTT	1992 Jan 19 2:00s # Aqtau Time
+			5:00 E-EurAsia	AQT%sT	1995 Sep lastSun
+			4:00 E-EurAsia	AQT%sT
 
 # Kirgizstan
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+Rule	Kirgiz	1992	max	-	Apr	Sun>=7	0:00	1:00	S
+Rule	Kirgiz	1991	max	-	Sep	lastSun	0:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Bishkek	4:58:24 -	LMT	1924 May  2
 			5:00	-	FRUT	1957 Mar    # Frunze Time
 			6:00 RussiaAsia FRU%sT	1991 Mar 31 2:00s
 			5:00	1:00	FRUST	1991 Aug 31 # independence
-			5:00 RussiaAsia KG%sT		    # Kirgizstan Time
+			5:00	Kirgiz	KG%sT		    # Kirgizstan Time
 
 ###############################################################################
 
@@ -630,10 +672,13 @@ Rule	Lebanon	1973	1977	-	May	1	0:00	1:00	S
 Rule	Lebanon	1978	only	-	Apr	30	0:00	1:00	S
 Rule	Lebanon	1978	only	-	Sep	30	0:00	0	-
 Rule	Lebanon	1984	1987	-	May	1	0:00	1:00	S
-Rule	Lebanon	1984	max	-	Oct	16	0:00	0	-
+Rule	Lebanon	1984	1991	-	Oct	16	0:00	0	-
 Rule	Lebanon	1988	only	-	Jun	1	0:00	1:00	S
 Rule	Lebanon	1989	only	-	May	10	0:00	1:00	S
-Rule	Lebanon	1990	max	-	May	1	0:00	1:00	S
+Rule	Lebanon	1990	1992	-	May	1	0:00	1:00	S
+Rule	Lebanon	1992	only	-	Oct	4	0:00	0	-
+Rule	Lebanon	1993	max	-	Mar	lastSun	0:00	1:00	S
+Rule	Lebanon	1993	max	-	Sep	lastSun	0:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Beirut	2:22:00 -	LMT	1880
 			2:00	Lebanon	EE%sT
@@ -673,8 +718,11 @@ Zone	Indian/Maldives	4:54:00 -	LMT	1880	# Male
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Mongol	1981	1984	-	Apr	1	0:00	1:00	S
 Rule	Mongol	1981	1984	-	Oct	1	0:00	0	-
-Rule	Mongol	1985	max	-	Mar	lastSun	2:00	1:00	S
-Rule	Mongol	1985	max	-	Sep	lastSun	3:00	0	-
+Rule	Mongol	1985	1990	-	Mar	lastSun	2:00	1:00	S
+Rule	Mongol	1985	1990	-	Sep	lastSun	3:00	0	-
+Rule	Mongol	1991	max	-	Mar	lastSun	0:00	1:00	S
+Rule	Mongol	1991	1995	-	Sep	lastSun	0:00	0	-
+Rule	Mongol	1996	max	-	Oct	Fri>=22	0:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 #Zone	Asia/Dariv	6:14:32 -	LMT	1905 Aug
 #			6:00	-	DART	1978	# Dariv Time
@@ -712,9 +760,9 @@ Zone	Asia/Karachi	4:28:12 -	LMT	1907
 Rule EgyptAsia	1957	only	-	May	10	0:00	1:00	S
 Rule EgyptAsia	1957	1958	-	Oct	 1	0:00	0	-
 Rule EgyptAsia	1958	only	-	May	 1	0:00	1:00	S
-Rule EgyptAsia	1959	1981	-	May	 1	1:00	1:00	S
+Rule EgyptAsia	1959	1967	-	May	 1	1:00	1:00	S
 Rule EgyptAsia	1959	1965	-	Sep	30	3:00	0	-
-Rule EgyptAsia	1966	max	-	Oct	 1	3:00	0	-
+Rule EgyptAsia	1966	only	-	Oct	 1	3:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Gaza	2:17:52	-	LMT	1900 Oct
 			2:00	-	EET	1957 May 10
@@ -806,8 +854,16 @@ Rule	Syria	1987	1988	-	Oct	31	2:00	0	-
 Rule	Syria	1988	only	-	Mar	15	2:00	1:00	S
 Rule	Syria	1989	only	-	Mar	31	2:00	1:00	S
 Rule	Syria	1989	only	-	Oct	1	2:00	0	-
-Rule	Syria	1990	max	-	Apr	1	2:00	1:00	S
-Rule	Syria	1990	max	-	Sep	30	2:00	0	-
+Rule	Syria	1990	only	-	Apr	1	2:00	1:00	S
+Rule	Syria	1990	only	-	Sep	30	2:00	0	-
+Rule	Syria	1991	only	-	Apr	 1	0:00	1:00	S
+Rule	Syria	1991	1992	-	Oct	 1	0:00	0	-
+Rule	Syria	1992	only	-	Apr	 8	0:00	1:00	S
+Rule	Syria	1993	only	-	Mar	26	0:00	1:00	S
+Rule	Syria	1993	only	-	Sep	25	0:00	0	-
+# IATA SSIM (1996-09) says 1997-03-31; assume that it should be 1997-04-01.
+Rule	Syria	1994	max	-	Apr	 1	0:00	1:00	S
+Rule	Syria	1994	max	-	Oct	 1	0:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Damascus	2:25:12 -	LMT	1920
 			2:00	Syria	EE%sT
@@ -820,10 +876,6 @@ Zone	Asia/Dushanbe	4:35:12 -	LMT	1924 May  2
 			5:00	1:00	DUSST	1991 Sep  9 # independence
 			5:00 RussiaAsia	TJ%sT	1992
 			5:00	-	TJT		    # Tajikistan Time
-# Shanks has Dushanbe at 5:00 (6:00 summer) after 1991,
-# but a cable from the American Embassy at Dushanbe
-# <URL:http://www.itaiep.doc.gov/bisnis/cables/960703ti.html> (1996-07-02)
-# says that Tajikistan is at 5:00.  Guess no DST after 1991.
 
 # Thailand
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -836,12 +888,10 @@ Zone	Asia/Bangkok	6:42:04	-	LMT	1880
 Zone	Asia/Ashkhabad	3:53:32 -	LMT	1924 May  2 # or Ashgabat
 			4:00	-	ASHT	1957 Mar    # Ashkhabad Time
 			5:00 RussiaAsia ASH%sT	1991 Mar 31 2:00s
-			4:00	1:00	ASHST	1991 Oct 27 # independence
-			4:00 RussiaAsia	TM%sT	1992	    # Turkmenistan Time
-			4:00	-	TMT
-# Shanks has Ashkhabad at 4:00 (5:00 summer) after 1991, but
-# DHL <URL:http://www.dhl.com/dhlinfo/country/turkmeni.html> (1996-07-26)
-# reports 4:00.  Guess no DST after 1991.
+			4:00	1:00	ASHST	1991 Sep 29 2:00s
+			4:00	-	ASHT	1991 Oct 27 # independence
+			4:00	-	TMT	1992 Jan 19 2:00s
+			5:00	-	TMT	# Turkmenistan Time
 
 # United Arab Emirates
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
diff --git a/share/zoneinfo/australasia b/share/zoneinfo/australasia
index 27e018bcde16..be15771b0734 100644
--- a/share/zoneinfo/australasia
+++ b/share/zoneinfo/australasia
@@ -1,4 +1,4 @@
-# @(#)australasia	7.29
+# @(#)australasia	7.30
 # This file also includes Pacific islands.
 
 # Notes are at the end of this file
@@ -35,17 +35,33 @@ Zone Australia/Perth	 7:43:24 -	LMT	1895 Dec
 			 8:00	1:00	WST	1992 Mar Sun>=1 2:00s
 			 8:00	-	WST
 # Queensland
+#
+# From Alex Livingston <alex@agsm.unsw.edu.au> (1996-11-01):
+# I have heard or read more than once that some resort islands off the coast
+# of Queensland chose to keep observing daylight-saving time even after
+# Queensland ceased to.
+#
+# From Paul Eggert (1996-11-22):
+# IATA SSIM (1993-02/1994-09) say that the Holiday Islands (Hayman, Lindeman,
+# Hamilton) observed DST for two years after the rest of Queensland stopped.
+# Hamilton is the largest, but there is also a Hamilton in Victoria,
+# so use Lindeman.
+#
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+Rule	QL	1989	1991	-	Oct	lastSun	2:00s	1:00	-
+Rule	QL	1990	1992	-	Mar	Sun>=1	2:00s	0	-
+Rule	Holiday	1989	1993	-	Oct	lastSun	2:00s	1:00	-
+Rule	Holiday	1990	1994	-	Mar	Sun>=1	2:00s	0	-
 Zone Australia/Brisbane	10:12:08 -	LMT	1895
 			10:00	-	EST	1917 Jan 1 0:01
 			10:00	Aus	EST	1971 Oct lastSun 2:00s
 			10:00	1:00	EST	1972 Feb lastSun 2:00s
-			10:00	-	EST	1989 Oct lastSun 2:00s
-			10:00	1:00	EST	1990 Mar Sun>=1 2:00s
-			10:00	-	EST	1990 Oct lastSun 2:00s
-			10:00	1:00	EST	1991 Mar Sun>=1 2:00s
-			10:00	-	EST	1991 Oct lastSun 2:00s
-			10:00	1:00	EST	1992 Mar Sun>=1 2:00s
-			10:00	-	EST
+			10:00	QL	EST
+Zone Australia/Lindeman  9:55:56 -	LMT	1895
+			10:00	-	EST	1917 Jan 1 0:01
+			10:00	Aus	EST	1971 Oct lastSun 2:00s
+			10:00	1:00	EST	1972 Feb lastSun 2:00s
+			10:00	Holiday	EST
 
 # South Australia
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
@@ -289,11 +305,13 @@ Rule	NZ	1990	max	-	Oct	Sun>=1	2:00s	1:00	D
 Rule	NZ	1975	only	-	Feb	23	2:00s	0	S
 Rule	NZ	1976	1989	-	Mar	Sun>=1	2:00s	0	S
 Rule	NZ	1990	max	-	Mar	Sun>=15	2:00s	0	S
+Rule	Chatham	1990	max	-	Oct	Sun>=1	2:45s	1:00	D
+Rule	Chatham	1991	max	-	Mar	Sun>=15	2:45s	0	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Auckland	11:39:04 -	LMT	1868
 			11:30	NZ	NZ%sT	1940 Sep 29 2:00
 			12:00	NZ	NZ%sT
-Zone Pacific/Chatham	12:45	NZ	CHA%sT
+Zone Pacific/Chatham	12:45	Chatham	CHA%sT
 
 
 # Antipodes Is, Kermadec Is
@@ -375,9 +393,9 @@ Zone Pacific/Funafuti	11:56:52 -	LMT	1901
 Rule	Vanuatu	1983	only	-	Sep	25	0:00	1:00	S
 Rule	Vanuatu	1984	1991	-	Mar	Sun>=23	0:00	0	-
 Rule	Vanuatu	1984	only	-	Oct	23	0:00	1:00	S
-Rule	Vanuatu	1985	1990	-	Sep	Sun>=23	0:00	1:00	S
-Rule	Vanuatu	1991	max	-	Sep	lastSun	0:00	1:00	S
-Rule	Vanuatu	1992	max	-	Mar	lastSun	0:00	0	-
+Rule	Vanuatu	1985	1991	-	Sep	Sun>=23	0:00	1:00	S
+Rule	Vanuatu	1992	1993	-	Jan	Sun>=23	0:00	0	-
+Rule	Vanuatu	1992	only	-	Oct	Sun>=23	0:00	1:00	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Efate	11:13:16 -	LMT	1912 Jan 13		# Vila
 			11:00	Vanuatu	VU%sT	# Vanuatu Time
@@ -400,11 +418,19 @@ 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 <eggert@twinsun.com> (1996-01-22);
+# From Paul Eggert <eggert@twinsun.com> (1996-11-22):
 # A good source for time zone historical data outside the U.S. is
 # Thomas G. Shanks, The International Atlas (3rd edition),
 # San Diego: ACS Publications, Inc. (1991).
-# Except where noted, it is the source for the data above.
+#
+# Gwillim Law <LAW@encmail.encompass.com> writes that a good source
+# for recent time zone data is the International Air Transport
+# Association's Standard Schedules Information Manual (IATA SSIM),
+# published semiannually.  Law sent in several helpful summaries
+# 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.
 #
 # Another source occasionally used is Edward W. Whitman, World Time Differences,
 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
@@ -799,8 +825,11 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # 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.
 #
-# Shanks gives no data for Chatham, but usno1995 says it's +12:45/+13:45.
-# Guess NZ switchover rules for now.
+# From Paul Eggert (1996-11-22):
+# Shanks gives no data for Chatham; usno1989 says it's +12:45,
+# usno1995 says it's +12:45/+13:45, and IATA SSIM (1991/1996)
+# gives the NZ rules but with transitions at 2:45 local standard time.
+# Guess that they adopted DST in 1990.
 
 ###############################################################################
 
diff --git a/share/zoneinfo/etcetera b/share/zoneinfo/etcetera
index 73ad68ee0aa3..c47fae7a68c3 100644
--- a/share/zoneinfo/etcetera
+++ b/share/zoneinfo/etcetera
@@ -1,15 +1,19 @@
-# @(#)etcetera	7.5
+# @(#)etcetera	7.6
 
-# All of these are set up just so people can "zic -l" to a timezone
-# that's right for their area, even if it doesn't have a name or DST rules
-# (half hour zones are too much to bother with -- when someone asks!)
+# These entries are mostly present for historical reasons, so that
+# people in areas not otherwise covered by the tz files could "zic -l"
+# to a time zone that was right for their area.  These days, the
+# tz files cover almost all the inhabited world, so there's little
+# need now for the entries that are not on UTC.
 
 Zone	Etc/GMT		0	-	GMT
-Link	Etc/GMT				Etc/UTC
-Link	Etc/GMT				Etc/UCT
-Link	Etc/GMT				Etc/Universal
+Zone	Etc/UTC		0	-	UTC
+Zone	Etc/UCT		0	-	UCT
+
+Link	Etc/UTC				Etc/Universal
+Link	Etc/UTC				Etc/Zulu
+
 Link	Etc/GMT				Etc/Greenwich
-Link	Etc/GMT				Etc/Zulu
 Link	Etc/GMT				Etc/GMT-0
 Link	Etc/GMT				Etc/GMT+0
 Link	Etc/GMT				Etc/GMT0
diff --git a/share/zoneinfo/europe b/share/zoneinfo/europe
index abeba9838641..6eb92b769d6a 100644
--- a/share/zoneinfo/europe
+++ b/share/zoneinfo/europe
@@ -1,14 +1,22 @@
-# @(#)europe	7.40
+# @(#)europe	7.41
 
 # 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 <eggert@twinsun.com> (1996-09-03):
+# From Paul Eggert <eggert@twinsun.com> (1996-11-22):
 # A good source for time zone historical data outside the U.S. is
 # Thomas G. Shanks, The International Atlas (3rd edition),
 # San Diego: ACS Publications, Inc. (1991).
-# Except where otherwise noted, it is the source for the data below.
+#
+# Gwillim Law <LAW@encmail.encompass.com> writes that a good source
+# for recent time zone data is the International Air Transport
+# Association's Standard Schedules Information Manual (IATA SSIM),
+# published semiannually.  Law sent in several helpful summaries
+# 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.
 #
 # Another source occasionally used is Edward W. Whitman, World Time Differences,
 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
@@ -27,6 +35,7 @@
 #	 0:00	WET WEST Western Europe
 #	 1:00	CET CEST Central Europe
 #	 2:00	EET EEST Eastern Europe
+#	 3:00	MSK MSD	Moscow
 #
 # See the `africa' file for time zone naming and abbreviation conventions.
 #
@@ -826,6 +835,14 @@ Rule	C-Eur	1979	1995	-	Sep	lastSun	 2:00s	0	-
 Rule	C-Eur	1981	max	-	Mar	lastSun	 2:00s	1:00	S
 Rule	C-Eur	1996	max	-	Oct	lastSun	 2:00s	0	-
 
+# E-Eur differs from EU only in that E-Eur switches at midnight local time.
+Rule	E-Eur	1977	1980	-	Apr	Sun>=1	 0:00	1:00	S
+Rule	E-Eur	1977	only	-	Sep	lastSun	 0:00	0	-
+Rule	E-Eur	1978	only	-	Oct	 1	 0:00	0	-
+Rule	E-Eur	1979	1995	-	Sep	lastSun	 0:00	0	-
+Rule	E-Eur	1981	max	-	Mar	lastSun	 0:00	1:00	S
+Rule	E-Eur	1996	max	-	Oct	lastSun	 0:00	0	-
+
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Russia	1917	only	-	Jul	 1	23:00	1:00	MST	# Moscow Summer Time
 Rule	Russia	1917	only	-	Dec	28	 0:00	0	MMT	# Moscow Mean Time
@@ -836,15 +853,20 @@ Rule	Russia	1919	only	-	Jul	 1	 2:00	1:00	S
 Rule	Russia	1919	only	-	Aug	16	 0:00	0	-
 Rule	Russia	1921	only	-	Feb	14	23:00	1:00	S
 # Shanks gives 1921 Mar 21 for the following transition.
-# From Andrew A. Chernov <ache@astral.msk.su> (1993-11-12):
+# From Andrey A. Chernov <ache@astral.msk.su> (1993-11-12):
 # My sources says, that it is Mar 20, not 21.
 Rule	Russia	1921	only	-	Mar	20	23:00	2:00	DS
 Rule	Russia	1921	only	-	Sep	 1	 0:00	1:00	S
 Rule	Russia	1921	only	-	Oct	 1	 0:00	0	-
 Rule	Russia	1981	1984	-	Apr	 1	 0:00	1:00	S
 Rule	Russia	1981	1983	-	Oct	 1	 0:00	0	-
-Rule	Russia	1984	max	-	Sep	lastSun	 2:00s	0	-
-Rule	Russia	1985	max	-	Mar	lastSun	 2:00s	1:00	S
+Rule	Russia	1984	1991	-	Sep	lastSun	 2:00s	0	-
+Rule	Russia	1985	1991	-	Mar	lastSun	 2:00s	1:00	S
+Rule	Russia	1992	only	-	Mar	lastSat	 23:00	1:00	S
+Rule	Russia	1992	only	-	Sep	lastSat	 23:00	0	-
+Rule	Russia	1993	max	-	Mar	lastSun	 2:00s	1:00	S
+Rule	Russia	1993	1995	-	Sep	lastSun	 2:00s	0	-
+Rule	Russia	1996	max	-	Oct	lastSun	 2:00s	0	-
 
 # These are for backward compatibility with older versions.
 
@@ -913,7 +935,8 @@ Rule	Albania	1984	only	-	Oct	 1	0:00	0	-
 Zone	Europe/Tirane	1:19:20 -	LMT	1914
 			1:00	-	CET	1940 Jun 16
 			1:00	Albania	CE%sT	1985 Mar 31 1:00
-			1:00	W-Eur	CE%sT
+			1:00	W-Eur	CE%sT	1991
+			1:00	EU	CE%sT
 
 # Andorra
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -944,11 +967,13 @@ Zone	Europe/Vienna	1:05:20 -	LMT	1893 Apr
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Europe/Minsk	1:50:16 -	LMT	1880
 			2:30:20	Russia	%s	1919 Jul 1 2:00
-			3:00	Russia	MOS%sT	1922 Oct # Moscow Time
+			3:00	Russia	MSK/MSD	1922 Oct
 			2:00	-	EET	1930 Jun 21
-			3:00	Russia	MOS%sT	1991 Mar 31 2:00s
+			3:00	Russia	MSK/MSD	1991 Mar 31 2:00s
 			2:00	1:00	EEST	1991 Sep 29 2:00s
-			2:00	C-Eur	EE%sT
+			2:00	-	EET	1992 Mar 29 0:00
+			2:00	1:00	EEST	1992 Sep 27 0:00
+			2:00	Russia	EE%sT
 
 # Belgium
 # Whitman and Shanks disagree; go with Shanks, usually.
@@ -1021,7 +1046,8 @@ Zone	Europe/Sofia	1:33:16 -	LMT	1880
 			1:00	C-Eur	CE%sT	1945 Apr  2  3:00
 			2:00	-	EET	1979 Mar 31 23:00
 			2:00	Bulg	EE%sT	1982 Sep 26  2:00
-			2:00	C-Eur	EE%sT
+			2:00	C-Eur	EE%sT	1991
+			2:00	E-Eur	EE%sT
 
 # Croatia
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -1077,30 +1103,54 @@ Zone Europe/Copenhagen	 0:50:20 -	LMT	1890
 Zone Atlantic/Faeroe	-0:27:04 -	LMT	1908 Jan 11	# Torshavn
 			 0:00	-	WET	1981
 			 0:00	EU	WE%sT
-Zone America/Scoresbysund -1:29:00 -	LMT	1916 Jul 28
+#
+# From Paul Eggert (1996-11-22):
+# 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
+# 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.
+
+#
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+Rule	Thule	1993	max	-	Apr	Sun>=1	2:00	1:00	D
+Rule	Thule	1993	max	-	Oct	lastSun	2:00	0	S
+#
+# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
+Zone America/Scoresbysund -1:29:00 -	LMT	1916 Jul 28 # Ittoqqortoormit
 			-2:00	-	CGT	1980 Apr  6 2:00
 			-2:00	C-Eur	CG%sT	1981 Mar 29
-			-1:00	C-Eur	EG%sT
-Zone America/Godthab	-3:26:56 -	LMT	1916 Jul 28
+			-1:00	EU	EG%sT
+Zone America/Godthab	-3:26:56 -	LMT	1916 Jul 28 # Nuuk
 			-3:00	-	WGT	1980 Apr  6 2:00
-			-3:00	C-Eur	WG%sT
-Zone America/Thule	-4:35:08 -	LMT	1916 Jul 28
-			-4:00	-	AST
+			-3:00	EU	WG%sT
+Zone America/Thule	-4:35:08 -	LMT	1916 Jul 28 # Pituffik
+			-4:00	Thule	A%sT
 
 # Estonia
 # From Peter Ilieve <peter@memex.co.uk> (1994-10-15):
 # A relative in Tallinn confirms the accuracy of the data for 1989 onwards
 # [through 1994] and gives the legal authority for it,
 # a regulation of the Government of Estonia, No. 111 of 1989....
+#
+# From Peter Ilieve <peter@aldie.co.uk> (1996-10-28):
+# [IATA SSIM (1992/1996) claims that the Baltic republics switch at 01:00s,
+# but a relative confirms that Estonia still switches at 02:00s, writing:]
+# ``I do not [know] exactly but there are some little different
+# (confusing) rules for International Air and Railway Transport Schedules
+# conversion in Sunday connected with end of summer time in Estonia....
+# A discussion is running about the summer time efficiency and effect on
+# human physiology.  It seems that Estonia maybe will not change to
+# summer time next spring.''
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Europe/Tallinn	1:39:00	-	LMT	1880
 			1:39:00	-	TMT	1918 Feb # Tallinn Mean Time
 			1:00	C-Eur	CE%sT	1919 Jul
 			1:39:00	-	TMT	1921 May
 			2:00	-	EET	1940 Aug  6
-			3:00	-	MOST	1941 Sep 15 # Moscow Time
+			3:00	-	MSK	1941 Sep 15
 			1:00	C-Eur	CE%sT	1944 Sep 22
-			3:00	Russia	MOS%sT	1989 Mar 26 2:00s
+			3:00	Russia	MSK/MSD	1989 Mar 26 2:00s
 			2:00	1:00	EEST	1989 Sep 24 2:00s
 			2:00	C-Eur	EE%sT
 
@@ -1418,6 +1468,14 @@ Link	Europe/Rome	Europe/Vatican
 Link	Europe/Rome	Europe/San_Marino
 
 # Latvia
+# From Paul Eggert (1996-11-22):
+# Rules after 1991 are by extension from Shanks.  They contradict
+# IATA SSIM (1992/1996), which claims Latvia uses W-Eur rules, but
+# Peter Ilieve's relative writes that Latvia switched in September this year,
+# so we'll assume that the old C-Eur-style rules still apply.
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+Rule	Latvia	1992	max	-	Mar	lastSun	 2:00s	1:00	S
+Rule	Latvia	1992	max	-	Sep	lastSun	 2:00s	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Europe/Riga	1:36:24	-	LMT	1880
 			1:36:24	-	RMT	1918 Apr 15 2:00 #Riga Mean Time
@@ -1426,11 +1484,11 @@ Zone	Europe/Riga	1:36:24	-	LMT	1880
 			1:36:24	1:00	LST	1919 May 22 3:00
 			1:36:24	-	RMT	1926 May 11
 			2:00	-	EET	1940 Aug  5
-			3:00	-	MOST	1941 Jul # Moscow Time
+			3:00	-	MSK	1941 Jul
 			1:00	C-Eur	CE%sT	1944 Aug  8
-			3:00	Russia	MOS%sT	1991 Mar 31 2:00s
+			3:00	Russia	MSK/MSD	1991 Mar 31 2:00s
 			2:00	1:00	EEST	1991 Sep 29 2:00s
-			2:00	C-Eur	EE%sT
+			2:00	Latvia	EE%sT
 
 # Liechtenstein
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -1446,11 +1504,14 @@ Zone	Europe/Vilnius	1:41:16	-	LMT	1880
 			1:00	-	CET	1920 Jul 12
 			2:00	-	EET	1920 Oct  9
 			1:00	-	CET	1940 Aug  3
-			3:00	-	MOST	1941 Jun 24 # Moscow Time
+			3:00	-	MSK	1941 Jun 24
 			1:00	C-Eur	CE%sT	1944 Aug
-			3:00	Russia	MOS%sT	1991 Mar 31 2:00s
+			3:00	Russia	MSK/MSD	1991 Mar 31 2:00s
 			2:00	1:00	EEST	1991 Sep 29 2:00s
 			2:00	C-Eur	EE%sT
+# From Paul Eggert (1996-11-22):
+# IATA SSIM (1992/1996) says Lithuania uses W-Eur rules, but since it is
+# known to be wrong about Estonia and Latvia, assume it's wrong here too.
 
 # Luxembourg
 # Whitman disagrees with most of these dates in minor ways; go with Shanks.
@@ -1517,9 +1578,9 @@ Zone	Europe/Malta	0:58:04 -	LMT	1893 Nov  2	# Valletta
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Europe/Chisinau	1:55:20 -	LMT	1924 May  2
 			2:00	-	EET	1930 Jun 21
-			3:00	Russia	MOS%sT	1991 Mar 31 2:00s # Moscow Time
+			3:00	Russia	MSK/MSD	1991 Mar 31 2:00s
 			2:00	1:00	EEST	1991 Sep 29 2:00s
-			2:00	C-Eur	EE%sT
+			2:00	E-Eur	EE%sT
 
 # Monaco
 # Shanks gives 0:09 for Paris Mean Time; go with Howse's more precise 0:09:21.
@@ -1631,9 +1692,30 @@ Zone	Europe/Warsaw	1:24:00 -	LMT	1880
 			1:00	C-Eur	CE%sT	1944 Oct
 			1:00	Poland	CE%sT	1977 Apr  3 1:00
 			1:00	W-Eur	CE%sT
+# IATA SSIM (1991/1996) gives EU rules, but the _The Warsaw Voice_
+# <URL:http://www.contact.waw.pl/voice/v361/NewsInBrief.shtml>
+# (1995-09-24) says the autumn 1995 switch was at 02:00.
+# Stick with W-Eur for now.
 
 # Portugal
 # Gregorian calendar adopted 1582-10-15.
+#
+# From Rui Pedro Salgueiro <rps@inescca.inescc.pt> (1992-11-12):
+# Portugal has recently (September, 27) changed timezone
+# (from WET to MET or CET) to harmonize with EEC.
+#
+# Martin Bruckmann <martin@ua.pt> (1996-02-29) reports via Peter Ilieve
+# that Portugal is reverting to 0:00 by not moving its clocks this spring.
+# The new Prime Minister was fed up with getting up in the dark in the winter.
+#
+# From Paul Eggert (1996-11-12):
+# IATA SSIM (1991-09) reports several 1991-09 and 1992-09 transitions
+# at 02:00u, not 01:00u.  Assume that these are typos.
+# IATA SSIM (1991/1992) reports that the Azores were at -1:00.
+# IATA SSIM (1993-02) says +0:00; later issues (through 1996-09) say -1:00.
+# Guess that the Azores changed to EU rules in 1992 (since that's when Portugal
+# harmonized with the EU), and that they stayed +0:00 that winter.
+#
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Port	1916	only	-	Jun	17	23:00	1:00	S
 # Whitman gives 1916 Oct 31; go with Shanks.
@@ -1701,23 +1783,16 @@ Zone	Europe/Lisbon	-0:36:32 -	LMT	1884
 			 0:00	Port	WE%sT	1966 Apr  3 2:00
 			 1:00	-	CET	1976 Sep 26 1:00
 			 0:00	Port	WE%sT	1983 Sep 25 1:00s
-# From Rui Pedro Salgueiro <rps@inescca.inescc.pt> (1992-11-12):
-# Portugal has recently (September, 27) changed timezone
-# (from WET to MET or CET) to harmonize with EEC.
-			 0:00	EU	WE%sT	1992 Sep 27 1:00s
-# Martin Bruckmann <martin@ua.pt> (1996-02-29) reports via Peter Ilieve
-# that Portugal is reverting to 0:00 by not moving its clocks this spring.
-# The new Prime Minister was fed up with getting up in the dark in the winter.
+			 0:00	W-Eur	WE%sT	1992 Sep 27 1:00s
 			 1:00	EU	CE%sT	1996 Mar 31 1:00u
 			 0:00	EU	WE%sT
-# We don't know what happened to Madeira or the Azores,
-# so we'll just use Shanks for now.
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Atlantic/Azores	-1:42:40 -	LMT	1884		# Ponta Delgada
 			-1:55	-	HMT	1911 May 24  # Horta Mean Time
 			-2:00	Port	AZO%sT	1966 Apr  3 2:00 # Azores Time
 			-1:00	Port	AZO%sT	1983 Sep 25 1:00s
-			-1:00	W-Eur	AZO%sT
+			-1:00	W-Eur	AZO%sT	1992 Sep 27 1:00s
+			 0:00	EU	WE%sT	1993 Mar 28 1:00u
+			-1:00	EU	AZO%sT
 Zone Atlantic/Madeira	-1:07:36 -	LMT	1884		# Funchal
 			-1:08	-	FMT	1911 May 24  # Funchal Mean Time
 			-1:00	Port	MAD%sT	1966 Apr  3 2:00 # Madeira Time
@@ -1733,38 +1808,62 @@ Rule	Romania	1979	only	-	May	27	 0:00	1:00	S
 Rule	Romania	1979	only	-	Sep	lastSun	 0:00	0	-
 Rule	Romania	1980	only	-	Apr	 5	23:00	1:00	S
 Rule	Romania	1980	only	-	Sep	lastSun	 1:00	0	-
+Rule	Romania	1991	1993	-	Mar	lastSun	 0:00s	1:00	S
+Rule	Romania	1991	1993	-	Sep	lastSun	 0:00s	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Europe/Bucharest	1:44:24 -	LMT	1891 Oct
 			1:44:24	-	BMT	1931 Jul 24	# Bucharest MT
 			2:00	Romania	EE%sT	1981 Mar 29 2:00s
-			2:00	C-Eur	EE%sT
+			2:00	C-Eur	EE%sT	1991
+			2:00	Romania	EE%sT	1994
+			2:00	E-Eur	EE%sT
 
 # Russia
 # From Shanks (1991):
 # In 1929 the Soviet Union instituted a 5 day week; in 1932 it instituted
 # a 6 day week; on 1940-06-27 it returned to the Gregorian week.
 #
-# From Paul Eggert <eggert@twinsun.com> (1996-09-03):
-# Moscow rules after 1991 are from Andrew A. Chernov <ache@astral.msk.su>.
-# I invented the time zone names, and (unless otherwise specified)
-# guessed what happened after 1991; the clocks were chaotic, and we know little.
-# The rest is from Shanks.
+# From Paul Eggert <eggert@twinsun.com> (1996-11-22):
+# Except for Moscow after 1919-07-01, I invented the time zone abbreviations,
+# and (unless otherwise specified) guessed what happened after 1991.
+# Moscow time zone abbreviations after 1919-07-01, and Moscow rules after 1991,
+# are from Andrey A. Chernov.  The rest is from Shanks and the IATA.
+#
+# 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)....
+# The next step was the UUCP network, the Relcom predecessor
+# (used mainly for mail), and MSK/MSD was actively used there.
+#
+# From Chris Carrier <72157.3334@CompuServe.COM> (1996-10-30):
+# According to a friend of mine who rode the Trans-Siberian Railroad from
+# Moscow to Irkutsk in 1995, public air and rail transport in Russia ...
+# still follows Moscow time, no matter where in Russia it is located.
 #
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
+Zone Europe/Kaliningrad	 1:22:00 - 	LMT	1893 Apr
+			 1:00	C-Eur	CE%sT	1945
+			 2:00	Poland	CET	1946
+			 3:00	Russia	MSK/MSD	1991 Mar 31 2:00s
+			 2:00	1:00	EEST	1991 Sep 29 2:00s
+			 2:00	-	EET	1992 Jan 19 2:00s
+			 3:00	Russia	MSK/MSD	1994
+# IATA SSIM (1994-02) says Kaliningrad is at UTC+2; guess 1994 change.
+			 2:00	Russia	EE%sT
 Zone Europe/Moscow	 2:30:20 -	LMT	1880
 			 2:30:20 Russia	%s	1919 Jul  1 2:00
-			 3:00	Russia	MOS%sT	1922 Oct # Moscow TIme
+			 3:00	Russia	MSK/MSD	1922 Oct
 			 2:00	-	EET	1930 Jun 21
-			 3:00	Russia	MOS%sT	1991 Mar 31 2:00s
+			 3:00	Russia	MSK/MSD	1991 Mar 31 2:00s
 			 2:00	1:00	EEST	1991 Sep 29 2:00s
 			 2:00	-	EET	1992 Jan 19 2:00s
-			 3:00	Russia	MOS%sT
-Zone Europe/Kuybyshev	 3:20:36 -	LMT	1924 May  2
+			 3:00	Russia	MSK/MSD
+Zone Europe/Samara	 3:20:36 -	LMT	1924 May  2
 			 3:00	-	KUYT	1957 Mar # Kuybyshev Time
 			 4:00	Russia	KUY%sT	1991 Mar 31 2:00s
 			 3:00	1:00	KUYST	1991 Sep 29 2:00s
-			 3:00	-	KUYT	1992 Jan 19 2:00s
-			 4:00	Russia	KUY%sT
+			 3:00	-	SAMT	1992 Jan 19 2:00s # Samara Time
+			 4:00	Russia	SAM%sT
 Zone Asia/Yekaterinburg	 4:02:34 -	LMT	1924 May  2
 			 4:00	-	SVET	1957 Mar # Sverdlovsk Time
 			 5:00	Russia	SVE%sT	1991 Mar 31 2:00s
@@ -1916,6 +2015,8 @@ Zone	Atlantic/Canary	-1:01:36 -	LMT	1922 Mar # Las Palmas de Gran C.
 			 0:00	-	WET	1980 Apr  6 0:00s
 			 0:00	1:00	WEST	1980 Sep 28 0:00s
 			 0:00	EU	WE%sT
+# IATA SSIM (1996-09) says the Canaries switch at 2:00u, not 1:00u.
+# Ignore this for now, as the Canaries are part of the EU.
 
 # Sweden
 
@@ -2026,7 +2127,8 @@ Zone	Europe/Istanbul	1:55:52 -	LMT	1880
 			2:00	Turkey	EE%sT	1978 Oct 15
 			3:00	Turkey	TR%sT	1985 Apr 20 # Turkey Time
 			2:00	Turkey	EE%sT	1986
-			2:00	C-Eur	EE%sT
+			2:00	C-Eur	EE%sT	1991
+			2:00	EU	EE%sT
 Link	Europe/Istanbul	Asia/Istanbul	# Istanbul is in both continents.
 
 # Ukraine
@@ -2053,23 +2155,28 @@ Rule	Crimea	1921	only	-	Feb	14	23:00	1:00	CST
 Rule	Crimea	1921	only	-	Mar	21	23:00	2:00	CDST
 Rule	Crimea	1921	only	-	Sep	 1	 0:00	1:00	CST
 Rule	Crimea	1921	only	-	Oct	 1	 0:00	0	NMT
+Rule	Crimea	1996	max	-	Mar	lastSun	 0:00u	1:00	-
+Rule	Crimea	1996	max	-	Oct	lastSun	 0:00u	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Europe/Kiev	2:02:04 -	LMT	1880
 			2:02:04	Ukraine	%s	1924 May  2
 			2:00	-	EET	1930 Jun 21
-			3:00	Russia	MOS%sT	1990 Jul 17 # Moscow Time
-			2:00	C-Eur	EE%sT
+			3:00	Russia	MSK/MSD	1990 Jul 17
+			2:00	E-Eur	EE%sT	1996
+			2:00	EU	EE%sT
 Zone Europe/Simferopol	2:16:24 -	LMT	1880
 			2:08:00	Crimea	%s	1924 May  2
 			2:00	-	EET	1930 Jun 21
-			3:00	Russia	MOS%sT	1991 Mar 31 2:00s
+			3:00	Russia	MSK/MSD	1991 Mar 31 2:00s
 			2:00	1:00	EEST	1991 Sep 29 2:00s
-# From Paul Eggert <eggert@twinsun.com> (1994-05-28):
-# Today's _Economist_ (p 45) reports that Crimea switched
-# from Kiev to Moscow time sometime after the January elections.
-# For now, we'll guess that there was a 2-hour leap forward on March 27.
-			2:00	C-Eur	EE%sT	1994 Mar 27 2:00s
-			3:00	Russia	MOS%sT
+# From Paul Eggert <eggert@twinsun.com> (1996-10-21):
+# The _Economist_ (1994-05-28, p 45) reports that most of Crimea switched
+# from Kiev to Moscow time sometime after the January 1994 elections.
+# For now, guess it changed Feb 1.
+			2:00	C-Eur	EE%sT	1994 Feb
+# From IATA SSIM (1994/1996), which also says that Kerch is still like Kiev.
+			3:00	E-Eur	MSK/MSD	1996
+			3:00	Crimea	MSK/MSD
 
 # Yugoslavia
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
diff --git a/share/zoneinfo/northamerica b/share/zoneinfo/northamerica
index 5c0c02cc9315..af81c5edb914 100644
--- a/share/zoneinfo/northamerica
+++ b/share/zoneinfo/northamerica
@@ -1,4 +1,4 @@
-# @(#)northamerica	7.28
+# @(#)northamerica	7.29
 # also includes Central America and the Caribbean
 
 # This data is by no means authoritative; if you think you know better,
@@ -462,11 +462,19 @@ Link	Pacific/Honolulu	HST
 ################################################################################
 
 
-# From Paul Eggert <eggert@twinsun.com> (1993-11-18):
+# From Paul Eggert <eggert@twinsun.com> (1996-11-22):
 # A good source for time zone historical data outside the US is
 # Thomas G. Shanks, The International Atlas (3rd edition),
 # San Diego: ACS Publications, Inc. (1991).
-# Except where otherwise noted, it is the source for the data below.
+#
+# Gwillim Law <LAW@encmail.encompass.com> writes that a good source
+# for recent time zone data is the International Air Transport
+# Association's Standard Schedules Information Manual (IATA SSIM),
+# published semiannually.  Law sent in several helpful summaries
+# 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.
 #
 # Another source occasionally used is Edward W. Whitman, World Time Differences,
 # Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
@@ -523,7 +531,7 @@ Rule	Canada	1974	max	-	Oct	lastSun	2:00	0	S
 Rule	Canada	1987	max	-	Apr	Sun>=1	2:00	1:00	D
 
 
-# Newfoundland
+# Newfoundland (except Labrador)
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	StJohns	1917	1918	-	Apr	Sun>=8	2:00	1:00	D
@@ -560,11 +568,23 @@ Rule	StJohns	1989	max	-	Apr	Sun>=1	2:00	1:00	D
 # 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
-			-3:31	StJohns	N%sT	1935 Mar 30
+			-3:30:52 StJohns N%sT	1935 Mar 30
 			-3:30	StJohns	N%sT
 
 
-# Labrador, New Brunswick, Nova Scotia, Prince Edward I
+# east Labrador
+
+# The name `Happy Valley-Goose Bay' is too long; use `Goose Bay'.
+# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
+Zone America/Goose_Bay	-4:01:40 -	LMT	1884 # Happy Valley-Goose Bay
+			-3:30:52 StJohns NST	1919
+			-3:30:52 -	NST	1935 Mar 30
+			-3:30	-	NST	1936
+			-3:30	StJohns	N%sT	1966 Mar 15 2:00
+			-4:00	StJohns	A%sT
+
+
+# west Labrador, New Brunswick, Nova Scotia, Prince Edward I
 
 # From Paul Eggert (1996-06-12):
 # Shanks writes that since 1970 most of this region has been like Halifax.
@@ -825,9 +845,17 @@ Zone America/Dawson_Creek -8:00:56 -	LMT	1884
 
 # Northwest Territories, Yukon
 
-# From Paul Eggert (1996-06-12):
+# From Paul Eggert (1996-10-07):
 # Dawson switched to PST in 1973.  Inuvik switched to MST in 1979.
 # Shanks's table for Watson Lake is corrupted, so we have no data there.
+# Mathew Englander <mathew@io.org> (1996-10-07) gives the following refs:
+#	* 1967. Paragraph 28(34)(g) of the Interpretation Act, S.C. 1967-68,
+#	c. 7 defines Yukon standard time as UTC-9.  This is still valid;
+#	see Interpretation Act, R.S.C. 1985, c. I-21, s. 35(1).
+#	* 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.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	NT_YK	1918	only	-	Apr	14	2:00	1:00	D
@@ -857,7 +885,7 @@ 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
 Zone America/Dawson	-9:17:40 -	LMT	1900 Aug 20
-			-9:00	NT_YK	Y%sT	1973 Oct lastSun 2:00
+			-9:00	NT_YK	Y%sT	1973 Oct 28 0:00
 			-8:00	NT_YK	P%sT
 
 
@@ -1070,8 +1098,10 @@ Zone	America/Cayman	-5:25:32 -	LMT	1890		# Georgetown
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 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	only	-	Jan	19	0:00	1:00	D
-Rule	CR	1991	only	-	Jul	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.
+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'.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Costa_Rica	-5:36:20 -	LMT	1890		# San Jose
@@ -1114,10 +1144,11 @@ Rule	Cuba	1978	only	-	May	7	0:00	1:00	D
 Rule	Cuba	1978	1980	-	Oct	Sun>=8	0:00	0	S
 Rule	Cuba	1979	1980	-	Mar	Sun>=15	0:00	1:00	D
 Rule	Cuba	1981	1985	-	May	Sun>=5	0:00	1:00	D
-Rule	Cuba	1981	max	-	Oct	Sun>=8	0:00	0	S
+Rule	Cuba	1981	1990	-	Oct	Sun>=8	0:00	0	S
 Rule	Cuba	1986	1989	-	Mar	Sun>=14	0:00	1:00	D
-Rule	Cuba	1990	only	-	Apr	1	0:00	1:00	D
-Rule	Cuba	1991	max	-	Mar	Sun>=14	0:00	1:00	D
+Rule	Cuba	1990	max	-	Apr	Sun>=1	0:00	1:00	D
+Rule	Cuba	1991	1995	-	Oct	Sun>=8	0:00s	0	S
+Rule	Cuba	1996	max	-	Oct	Sun>=1	0:00s	0	S
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Havana	-5:29:28 -	LMT	1890
@@ -1168,6 +1199,8 @@ Rule	Guat	1973	only	-	Nov	25	0:00	1:00	D
 Rule	Guat	1974	only	-	Feb	24	0:00	0	S
 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
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Guatemala	-6:02:04 -	LMT	1918 Oct 5
 			-6:00	Guat	C%sT
@@ -1177,8 +1210,9 @@ Zone America/Guatemala	-6:02:04 -	LMT	1918 Oct 5
 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
-Rule	Haiti	1988	max	-	Apr	Sun>=1	2:00	1:00	D
-Rule	Haiti	1988	max	-	Oct	lastSun	2:00	0	S
+# Shanks says AT is 2:00, but IATA SSIM (1991/1996) says 1:00s.  Go with IATA.
+Rule	Haiti	1988	max	-	Apr	Sun>=1	1:00s	1:00	D
+Rule	Haiti	1988	max	-	Oct	lastSun	1:00s	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
@@ -1203,7 +1237,8 @@ Zone America/Tegucigalpa -5:48:52 -	LMT	1921 Apr
 Zone	America/Jamaica	-5:07:12 -	LMT	1890		# Kingston
 			-5:07	-	KMT	1912 Feb    # Kingston Mean Time
 			-5:00	-	EST	1974 Jan 6 2:00
-			-5:00	US	E%sT
+			-5:00	US	E%sT	1984
+			-5:00	-	EST
 
 # Martinique
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -1222,12 +1257,15 @@ Zone America/Montserrat	-4:08:52 -	LMT	1911 Jul 1 0:01   # Plymouth
 # 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
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Managua	-5:45:08 -	LMT	1890
 			-5:45	-	MMT	1934 Jun 23  # Managua Mean Time
 			-6:00	-	CST	1973 May
 			-5:00	-	EST	1975 Feb 16
-			-6:00	Nic	C%sT
+			-6:00	Nic	C%sT	1993 Jan 1 4:00
+			-5:00	-	EST
 
 # Panama
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -1268,11 +1306,17 @@ Zone America/St_Vincent	-4:04:56 -	LMT	1890		# Kingstown
 			-4:00	-	AST
 
 # Turks and Caicos
+# From Paul Eggert (1996-11-22):
+# Shanks says they use US DST rules, but IATA SSIM (1991/1996)
+# 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
+Rule	TC	1979	max	-	Oct	lastSun	0:00	0	S
+Rule	TC	1987	max	-	Apr	Sun>=1	0:00	1:00	D
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Grand_Turk	-4:44:32 -	LMT	1890
 			-5:07	-	KMT	1912 Feb    # Kingston Mean Time
-			-5:00	-	EST	1979 Apr 29 2:00
-			-5:00	US	E%sT
+			-5:00	TC	E%sT
 
 # British Virgin Is
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
diff --git a/share/zoneinfo/southamerica b/share/zoneinfo/southamerica
index cd8c84ec6fed..1fdde5ebe559 100644
--- a/share/zoneinfo/southamerica
+++ b/share/zoneinfo/southamerica
@@ -1,14 +1,22 @@
-# @(#)southamerica	7.14
+# @(#)southamerica	7.15
 
 # 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 <eggert@twinsun.com> (1996-09-03):
+# From Paul Eggert <eggert@twinsun.com> (1996-11-22):
 # A good source for time zone historical data outside the U.S. is
 # Thomas G. Shanks, The International Atlas (3rd edition),
 # San Diego: ACS Publications, Inc. (1991).
-# Except where otherwise noted, it is the source for the data below.
+#
+# Gwillim Law <LAW@encmail.encompass.com> writes that a good source
+# for recent time zone data is the International Air Transport
+# Association's Standard Schedules Information Manual (IATA SSIM),
+# published semiannually.  Law sent in several helpful summaries
+# 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.
 #
 # The following abbreviations are used in this file.
 # Corrections are welcome!
@@ -103,11 +111,64 @@ Rule	Arg	1989	1992	-	Oct	Sun>=15	0:00	1:00	S
 # to the time zones (for daylight saving) are now made.
 #
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
+#
+# Buenos Aires (BA), Distrito Federal (DF), Santa Cruz (SC),
+# Tierra del Fuego (TF) & Antartida e Islas
 Zone America/Buenos_Aires -3:53:48 -	LMT	1894 Nov
 			-4:16:44 -	CMT	1920 May    # Cordoba Mean Time
 			-4:00	-	ART	1930 Dec
 			-4:00	Arg	AR%sT	1969 Oct 5
 			-3:00	Arg	AR%sT
+#
+# Santa Fe (SF), Entre Rios (ER), Corrientes (CN), Misiones (MN), Chaco (CC),
+# Formosa (FM), La Pampa (LP), Chubut (CH)
+Zone America/Rosario	-4:02:40 -	LMT	1894 Nov
+			-4:16:44 -	CMT	1920 May
+			-4:00	-	ART	1930 Dec
+			-4:00	Arg	AR%sT	1969 Oct 5
+			-3:00	Arg	AR%sT	1991 Jul
+			-3:00	-	ART
+#
+# Cordoba (CB), Santiago del Estero (SE), Salta (SA), Tucuman (TM), La Rioja (LR), San Juan (SJ), San Luis (SL),
+# Neuquen (NQ), Rio Negro (RN)
+Zone America/Cordoba	-4:16:44 -	LMT	1894 Nov
+			-4:16:44 -	CMT	1920 May
+			-4:00	-	ART	1930 Dec
+			-4:00	Arg	AR%sT	1969 Oct 5
+			-3:00	Arg	AR%sT	1990 Jul
+			-3:00	-	ART
+#
+# Jujuy (JY)
+Zone America/Jujuy	-4:21:12 -	LMT	1894 Nov
+			-4:16:44 -	CMT	1920 May
+			-4:00	-	ART	1930 Dec
+			-4:00	Arg	AR%sT	1969 Oct  5
+			-3:00	Arg	AR%sT	1991 Mar  3
+			-4:00	-	WART	1991 Oct  6
+			-4:00	1:00	WARST	1992 Mar 15
+			-4:00	-	WART	1992 Oct 18
+			-3:00	-	ART
+#
+# Catamarca (CT)
+Zone America/Catamarca	-4:23:08 -	LMT	1894 Nov
+			-4:16:44 -	CMT	1920 May
+			-4:00	-	ART	1930 Dec
+			-4:00	Arg	AR%sT	1969 Oct 5
+			-3:00	Arg	AR%sT	1990 Jul
+			-3:00	-	ART	1991 Jul
+			-3:00	Arg	AR%sT	1992 Jul
+			-3:00	-	ART
+#
+# Mendoza (MZ)
+Zone America/Mendoza	-4:35:16 -	LMT	1894 Nov
+			-4:16:44 -	CMT	1920 May
+			-4:00	-	ART	1930 Dec
+			-4:00	Arg	AR%sT	1969 Oct  5
+			-3:00	Arg	AR%sT	1991 Mar  3
+			-4:00	-	WART	1991 Oct 15
+			-4:00	1:00	WARST	1992 Mar  1
+			-4:00	-	WART	1992 Oct 18
+			-3:00	-	ART
 
 # Aruba
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -132,38 +193,55 @@ Zone	America/La_Paz	-4:32:36 -	LMT	1890
 # "[America/Porto_Acre]" is for the Territory of Acre;
 # "[America/Noronha]" is for Fernando De Noronha.
 
-# From Bob Devine (1988-01-28):
-# The only information I found is that there was no DST up to 1985.
-# But there was some before 1952!
-
-# From U. S. Naval Observatory (1989-01-16):
-# BRAZIL     WEST     5 H  BEHIND UTC    TERRITORY OF ACRE
-# BRAZIL     WEST     4 H  BEHIND UTC    ACRE OCT 23, '88-FEB 11,
-# BRAZIL                                 '89 (ESTIMATED)
-# BRAZIL     CENTRAL  4 H  BEHIND UTC    MANAUS
-# BRAZIL     CENTRAL  3 H  BEHIND UTC    MANAUS OCT 23, '88-FEB 11,
-# BRAZIL     CENTRAL                     '89 (ESTIMATED)
-# BRAZIL     EAST     3 H  BEHIND UTC    COASTAL STATES, RIO, SAO
-# BRAZIL     EAST                        PAULO, BRASILIA
-# BRAZIL     EAST     2 H  BEHIND UTC    COASTAL STATES, RIO, SAO
-# BRAZIL                                 PAULO, BRASILIA OCT 23,
-# BRAZIL                                 '88-FEB 11, '89
-# BRAZIL                                 (ESTIMATED)
-# BRAZIL              2 H  BEHIND UTC    ATLANTIC ISLANDS, FERNANDO
-# BRAZIL                                 DE NORONHA
-# BRAZIL              1 H  BEHIND UTC    OCT 23, '88-FEB 11, '89
-# BRAZIL                                 (ESTIMATED)
-# BRAZIL              3 H  BEHIND UTC    FOR MOST MAJOR AIRPORTS.
-
 # From Paul Eggert <eggert@twinsun.com> (1993-11-18):
 # The mayor of Rio recently attempted to change the time zone rules
 # just in his city, in order to leave more summer time for the tourist trade.
 # The rule change lasted only part of the day;
 # the federal government refused to follow the city's rules, and business
 # was in a chaos, so the mayor backed down that afternoon.
-# Shanks claims Acre stopped observing DST after 1988 Feb 7, but it
-# could just be that his table ran out of room.  We're extrapolating
-# about time zone changes after 1990 Feb 11.
+
+# From IATA SSIM (1996-02):
+# _Only_ the following states in BR1 observe DST: Rio Grande do Sul (RS),
+# Santa Catarina (SC), Parana (PR), Sao Paulo (SP), Rio de Janeiro (RJ),
+# Espirito Santo (ES), Minas Gerais (MG), Bahia (BA), Goias (GO),
+# Distrito Federal (DF), Tocantins (TO), Sergipe [SE] and Alagoas [AL].
+# [The last three states are new to this issue of the IATA SSIM.]
+
+# From Gwillim Law (1996-10-07):
+# Geography, history (Tocantins was part of Goias until 1989), and other
+# sources of time zone information lead me to believe that AL, SE, and TO were
+# always in BR1, and so the only change was whether or not they observed DST....
+# The earliest issue of the SSIM I have is 2/91.  Each issue from then until
+# 9/95 says that DST is observed only in the ten states I quoted from 9/95,
+# along with Mato Grosso (MT) and Mato Grosso do Sul (MS), which are in BR2
+# (UTC-4)....  The other two time zones given for Brazil are BR3, which is
+# UTC-5, no DST, and applies only in the state of Acre (AC); and BR4, which is
+# UTC-2, and applies to Fernando de Noronha (formerly FN, but I believe it's
+# become part of the state of Pernambuco).  The boundary between BR1 and BR2
+# has never been clearly stated.  They've simply been called East and West.
+# However, some conclusions can be drawn from another IATA manual: the Airline
+# Coding Directory, which lists close to 400 airports in Brazil.  For each
+# airport it gives a time zone which is coded to the SSIM.  From that
+# information, I'm led to conclude that the states of Amapa (AP), Ceara (CE),
+# Maranhao (MA), Paraiba (PR), Pernambuco (PE), Piaui (PI), and Rio Grande do
+# Norte (RN), and the eastern part of Para (PA) are all in BR1 without DST.
+
+# From Paul Eggert (1996-11-22):
+# Let's make the following assumptions:
+#
+# * All data in Shanks are correct through 1990.  In particular,
+#   Shanks was right when he said Acre stopped observing DST in mid-1988.
+# * Areas where Shanks reports DST up to 1990, but the IATA reports no DST
+#   in 1995, stopped observing DST in mid-1990.
+#
+# Under these assumptions Brazil needs 7 entries to cover all the distinct
+# time zone histories since 1970:
+#
+# Noronha (UTC-2), Fortaleza (UTC-3), and Manaus (UTC-4) stopped observing DST
+#	in mid-1990.
+# Maceio (UTC-3) stopped observing DST in mid-1990, but started again mid-1995.
+# Sao Paulo (UTC-3) and Cuiaba (UTC-4) always observed DST.
+# Porto Acre (UTC-5) stopped observing DST in mid-1988.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Brazil	1931	only	-	Oct	 3	11:00	1:00	D
@@ -185,21 +263,59 @@ Rule	Brazil	1986	1987	-	Oct	Sat<=28	 0:00	1:00	D
 Rule	Brazil	1987	only	-	Feb	14	 0:00	0	S
 Rule	Brazil	1988	only	-	Feb	 7	 0:00	0	S
 Rule	Brazil	1989	only	-	Jan	22	 0:00	0	S
-Rule	Brazil	1988	max	-	Oct	Sun>=15	 0:00	1:00	D
-Rule	Brazil	1990	max	-	Feb	Sun>=8	 0:00	0	S
+Rule	Brazil	1988	1989	-	Oct	Sun>=10	 0:00	1:00	D
+Rule	Brazil	1990	1991	-	Feb	Sun>=11	 0:00	0	S
+Rule	Brazil	1990	1992	-	Oct	Sun>=20	 0:00	1:00	D
+Rule	Brazil	1992	only	-	Feb	 9	 0:00	0	S
+Rule	Brazil	1993	max	-	Oct	Sun>=11	 0:00	1:00	D
+Rule	Brazil	1993	only	-	Jan	31	 0:00	0	S
+Rule	Brazil	1994	1995	-	Feb	Sun>=15	 0:00	0	S
+Rule	Brazil	1996	max	-	Feb	Sun>=11	 0:00	0	S
+
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
+#
+# Fernando de Noronha
 Zone America/Noronha	-2:09:40 -	LMT	1914
 			-2:00	-	FST	1963 Dec 9
-			-2:00	Brazil	F%sT
+			-2:00	Brazil	F%sT	1990 Jul
+			-2:00	-	FST
+#
+# Amapa, east Para, Maranhao, Piaui, Ceara, Rio Grande do Norte, Paraiba,
+# Pernambuco (except Fernando de Noronha)
+Zone America/Fortaleza	-2:34:00 -	LMT	1914
+			-3:00	-	EST	1963 Dec 9
+			-3:00	Brazil	E%sT	1990 Jul
+			-3:00	-	EST
+#
+# Alagoas, Sergipe, Tocantins
+Zone America/Maceio	-2:22:52 -	LMT	1914
+			-3:00	-	EST	1963 Dec 9
+			-3:00	Brazil	E%sT	1990 Jul
+			-3:00	-	EST	1995 Jul
+			-3:00	Brazil	E%sT
+#
+# Bahia, Goias, Distrito Federal, Minas Gerais, Espirito Santo, Rio de Janeiro,
+# Sao Paulo, Parana, Santa Catarina, Rio Grande do Sul
 Zone America/Sao_Paulo	-3:06:28 -	LMT	1914
 			-3:00	Brazil	E%sT
-Zone America/Manaus	-4:00:04 -	LMT	1914
+#
+# Mato Grosso, Mato Grosso do Sul
+Zone America/Cuiaba	-3:44:20 -	LMT	1914
 			-4:00	-	WST	1963 Dec 9
 			-4:00	Brazil	W%sT
+#
+# Roraima, west Para, Amazonas, Rondonia
+Zone America/Manaus	-4:00:04 -	LMT	1914
+			-4:00	-	WST	1963 Dec 9
+			-4:00	Brazil	W%sT	1990 Jul
+			-4:00	-	WST
+#
+# Acre
 # Rio_Branco is too ambiguous, since there's a Rio Branco in Uruguay too.
 Zone America/Porto_Acre	-4:31:12 -	LMT	1914
 			-5:00	-	AST	1963 Dec 9
-			-5:00	Brazil	A%sT
+			-5:00	Brazil	A%sT	1988 Jul
+			-5:00	-	AST
 #
 # Martin Vaz and Trinidade are like America/Noronha.
 
@@ -217,6 +333,8 @@ Rule	Chile	1927	1931	-	Sep	1	0:00	1:00	S
 Rule	Chile	1928	1932	-	Apr	1	0:00	0	-
 Rule	Chile	1969	max	-	Oct	Sun>=9	0:00	1:00	S
 Rule	Chile	1970	max	-	Mar	Sun>=9	0:00	0	-
+# IATA SSIM anomalies: (1990-09) says 1990-09-16; (1992-02) says 1992-03-14;
+# (1996-09) says 1998-03-08.  Ignore these for now.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Santiago	-4:42:40 -	LMT	1890
 			-4:42:40 -	SMT	1910	    # Santiago Mean Time
@@ -233,10 +351,13 @@ Zone Pacific/Easter	-7:17:28 -	LMT	1890	    # Mataveri
 
 
 # Colombia
+# 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	-
 # 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
-			-5:00	-	COT	# Colombia Time
+			-5:00	CO	CO%sT	# Colombia Time
 # Malpelo, Providencia, San Andres
 # no information; probably like America/Bogota
 
@@ -265,8 +386,9 @@ Rule	Falk	1943	only	-	Jan	1	0:00	0	-
 Rule	Falk	1983	only	-	Sep	lastSun	0:00	1:00	S
 Rule	Falk	1984	1985	-	Apr	lastSun	0:00	0	-
 Rule	Falk	1984	only	-	Sep	16	0:00	1:00	S
-Rule	Falk	1985	max	-	Sep	Sun>=9	0:00	1:00	S
+Rule	Falk	1985	1995	-	Sep	Sun>=9	0:00	1:00	S
 Rule	Falk	1986	max	-	Apr	Sun>=16	0:00	0	-
+Rule	Falk	1996	max	-	Sep	Sun>=8	0:00	1:00	S
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Atlantic/Stanley	-3:51:24 -	LMT	1890
 			-3:51:24 -	SMT	1912 Mar 12  # Stanley Mean Time
@@ -285,8 +407,9 @@ Zone America/Cayenne	-3:29:20 -	LMT	1911 Jul
 Zone	America/Guyana	-3:52:40 -	LMT	1915 Mar	# Georgetown
 			-3:45	-	GBGT	1966 May 26 # Br Guiana Time
 			-3:45	-	GYT	1975 Jul 31 # Guyana Time
-			-3:00	-	GYT
-
+			-3:00	-	GYT	1991
+# IATA SSIM (1996-06) says -4:00.  Assume a 1991 switch.
+			-4:00	-	GYT
 
 # Paraguay
 
@@ -303,10 +426,17 @@ Zone	America/Guyana	-3:52:40 -	LMT	1915 Mar	# Georgetown
 Rule	Para	1975	1978	-	Oct	 1	0:00	1:00	S
 Rule	Para	1975	1978	-	Mar	 1	0:00	0	-
 # Shanks says 1979 was all DST.
-Rule	Para	1980	max	-	Apr	 1	0:00	0	-
+Rule	Para	1980	1991	-	Apr	 1	0:00	0	-
 Rule	Para	1980	1988	-	Oct	 1	0:00	1:00	S
 Rule	Para	1989	only	-	Oct	22	0:00	1:00	S
-Rule	Para	1990	max	-	Oct	 1	0:00	1:00	S
+Rule	Para	1990	only	-	Oct	 1	0:00	1:00	S
+Rule	Para	1991	only	-	Oct	 6	0:00	1:00	S
+Rule	Para	1992	only	-	Mar	 1	0:00	0	-
+Rule	Para	1992	only	-	Oct	 5	0:00	1:00	S
+Rule	Para	1993	only	-	Mar	31	0:00	0	-
+Rule	Para	1993	max	-	Oct	 1	0:00	1:00	S
+Rule	Para	1994	1995	-	Feb	lastSun	0:00	0	-
+Rule	Para	1996	max	-	Mar	 1	0:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Asuncion	-3:50:40 -	LMT	1890
 			-3:50:40 -	AMT	1931 Oct 10 # Asuncion Mean Time
@@ -324,6 +454,8 @@ Rule	Peru	1987	only	-	Jan	 1	0:00	1:00	S
 Rule	Peru	1987	only	-	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	-
+Rule	Peru	1993	only	-	Jan	 1	0:00	1:00	S
+Rule	Peru	1993	only	-	Apr	 1	0:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Lima	-5:08:12 -	LMT	1890
 			-5:09	-	LMT	1908 Jul 28 # Lima Mean Time
@@ -396,7 +528,10 @@ 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
-Rule	Uruguay	1990	only	-	Mar	 4	 0:00	0	-
+Rule	Uruguay	1990	1992	-	Mar	Sun>=1	 0:00	0	-
+Rule	Uruguay	1990	1991	-	Oct	Sun>=21	 0:00	1:00	S
+Rule	Uruguay	1992	1993	-	Oct	Sun>=15	 0:00	1:00	S
+Rule	Uruguay	1993	only	-	Feb	28	 0:00	0	-
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Montevideo	-3:44:44 -	LMT	1898 Jun 28
 			-3:44:44 -	MMT	1920 May  1	# Montevideo MT
diff --git a/share/zoneinfo/zone.tab b/share/zoneinfo/zone.tab
index fef6a7244fec..9d86110ca7aa 100644
--- a/share/zoneinfo/zone.tab
+++ b/share/zoneinfo/zone.tab
@@ -31,9 +31,15 @@ AN	+1211-06900	America/Curacao
 AO	-0848+01314	Africa/Luanda
 AQ	-7750+16636	Antarctica/McMurdo	McMurdo Station, Ross Island
 AQ	-9000+00000	Antarctica/South_Pole	Amundsen-Scott Station, South Pole
-AQ	-6617+11031	Antarctica/Casey	Casey Station, Bailey Peninsula
+AQ	-6448-06406	Antarctica/Palmer	Palmer Station, Anvers Island
 AQ	-6736+06253	Antarctica/Mawson	Mawson Station, Holme Bay
-AR	-3436-05827	America/Buenos_Aires
+AQ	-6617+11031	Antarctica/Casey	Casey Station, Bailey Peninsula
+AR	-3436-05827	America/Buenos_Aires	E Argentina (BA, DF, SC, TF)
+AR	-3257-06040	America/Rosario	NE Argentina (SF, ER, CN, MN, CC, FM, LP, CH)
+AR	-3124-06411	America/Cordoba	W Argentina (CB, SA, TM, LR, SJ, SL, NQ, RN)
+AR	-2411-06518	America/Jujuy	Jujuy (JY)
+AR	-2828-06547	America/Catamarca	Catamarca (CT)
+AR	-3253-06849	America/Mendoza	Mendoza (MZ)
 AS	-1416-17042	Pacific/Pago_Pago
 AT	+4813+01620	Europe/Vienna
 AU	-3133+15905	Australia/Lord_Howe	Lord Howe Island
@@ -41,7 +47,8 @@ AU	-4253+14719	Australia/Hobart	Tasmania
 AU	-3749+14458	Australia/Melbourne	Victoria
 AU	-3352+15113	Australia/Sydney	New South Wales - most locations
 AU	-3157+14127	Australia/Broken_Hill	New South Wales - Broken Hill
-AU	-2728+15302	Australia/Brisbane	Queensland
+AU	-2728+15302	Australia/Brisbane	Queensland - most locations
+AU	-2016+14900	Australia/Lindeman	Queensland - Holiday Islands
 AU	-3455+13835	Australia/Adelaide	South Australia
 AU	-1228+13050	Australia/Darwin	Northern Territory
 AU	-3157+11551	Australia/Perth	Western Australia
@@ -59,9 +66,12 @@ BJ	+0629+00237	Africa/Porto-Novo
 BM	+3217-06446	Atlantic/Bermuda
 BN	+0456+11455	Asia/Brunei
 BO	-1630-06809	America/La_Paz
-BR	-0351-03225	America/Noronha	Atlantic islands
-BR	-2332-04637	America/Sao_Paulo	east Brazil
-BR	-0308-06001	America/Manaus	west Brazil
+BR	-0351-03225	America/Noronha	Fernando de Noronha
+BR	-0343-03830	America/Fortaleza	NE Brazil (AP, east PA, MA, PI, CE, RN, PR, PE)
+BR	-0940-03543	America/Maceio	ENE Brazil (AL, SE, TO)
+BR	-2332-04637	America/Sao_Paulo	S & SE Brazil (BA, GO, DF, MG, ES, RJ, SP, PR, SC, RS)
+BR	-1535-05605	America/Cuiaba	SW Brazil (MT, MS)
+BR	-0308-06001	America/Manaus	NW Brazil (RR, west PA, AM, RO)
 BR	-0934-06731	America/Porto_Acre	Acre
 BS	+2505-07721	America/Nassau
 BT	+2728+08939	Asia/Thimbu
@@ -69,8 +79,9 @@ 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 locations), New Brunswick, Labrador & PEI
+CA	+4439-06336	America/Halifax	Atlantic Time - Nova Scotia (most places), NB, W Labrador, E Quebec & PEI
 CA	+4612-05957	America/Glace_Bay	Atlantic Time - Nova Scotia - places that did not observe DST 1966-1971
+CA	+5320-06025	America/Goose_Bay	Atlantic Time - E Labrador
 CA	+6608-06544	America/Pangnirtung	Atlantic Time - Northwest Territories
 CA	+4531-07334	America/Montreal	Eastern Time - Ontario & Quebec - most locations
 CA	+4901-08816	America/Nipigon	Eastern Time - Ontario & Quebec - places that did not observe DST 1967-1973
@@ -189,7 +200,8 @@ KR	+3733+12658	Asia/Seoul
 KW	+2920+04759	Asia/Kuwait
 KY	+1918-08123	America/Cayman
 KZ	+4315+07657	Asia/Alma-Ata	east Kazakhstan
-KZ	+5016+07302	Asia/Aktau	west Kazakhstan
+KZ	+5017+05710	Asia/Aqtobe	central Kazakhstan
+KZ	+4431+05016	Asia/Aqtau	west Kazakhstan
 LA	+1758+10236	Asia/Vientiane
 LB	+3353+03530	Asia/Beirut
 LC	+1401-06100	America/St_Lucia
@@ -262,15 +274,16 @@ PY	-2516-05740	America/Asuncion
 QA	+2517+05132	Asia/Qatar
 RE	-2052+05528	Indian/Reunion
 RO	+4426+02606	Europe/Bucharest
+RU	+5443+02030	Europe/Kaliningrad	Moscow-01 - Kaliningrad
 RU	+5545+03735	Europe/Moscow	Moscow+00 - west Russia
-RU	+5312+05009	Europe/Kuybyshev	Moscow+01 - Caspian Sea
+RU	+5312+05009	Europe/Samara	Moscow+01 - Caspian Sea
 RU	+5651+06036	Asia/Yekaterinburg	Moscow+02 - Urals
 RU	+5500+07324	Asia/Omsk	Moscow+03 - west Siberia
 RU	+5502+08255	Asia/Novosibirsk	Moscow+03 - Novosibirsk
 RU	+5601+09250	Asia/Krasnoyarsk	Moscow+04 - Yenisei River
-RU	+5216+10420	Asia/Irkutsk	Moscow+05 - Irkutsk
+RU	+5216+10420	Asia/Irkutsk	Moscow+05 - Lake Baikal
 RU	+6200+12940	Asia/Yakutsk	Moscow+06 - Lena River
-RU	+4310+13156	Asia/Vladivostok	Moscow+07 - Vladivostok
+RU	+4310+13156	Asia/Vladivostok	Moscow+07 - Amur River
 RU	+5934+15048	Asia/Magadan	Moscow+08 - Magadan & Sakhalin
 RU	+5301+15839	Asia/Kamchatka	Moscow+09 - Kamchatka
 RU	+6445+17729	Asia/Anadyr	Moscow+10 - Bering Sea