svn commit: r274567 - stable/8/share/zoneinfo

Edwin Groothuis edwin at FreeBSD.org
Sun Nov 16 04:12:28 UTC 2014


Author: edwin
Date: Sun Nov 16 04:12:25 2014
New Revision: 274567
URL: https://svnweb.freebsd.org/changeset/base/274567

Log:
  MFC of 274559,tzdata8:
  
  Release 2014j - 2014-11-10 17:37:11 -0800
  
    Changes affecting current and future time stamps
  
      Turks & Caicos' switch from US eastern time to UTC-4 year-round
      did not occur on 2014-11-02 at 02:00.  It's currently scheduled
      for 2015-11-01 at 02:00.  (Thanks to Chris Walton.)
  
    Changes affecting past time stamps
  
      Many pre-1989 time stamps have been corrected for Asia/Seoul and
      Asia/Pyongyang, based on sources for the Korean-language Wikipedia
      entry for time in Korea.  (Thanks to Sanghyuk Jung.)  Also, no
      longer guess that Pyongyang mimicked Seoul time after World War II,
      as this is politically implausible.
  
      Some more zones have been turned into links, when they differed
      from existing zones only for older time stamps.  As usual,
      these changes affect UTC offsets in pre-1970 time stamps only.
      Their old contents have been moved to the 'backzone' file.
      The affected zones are: Africa/Addis_Ababa, Africa/Asmara,
      Africa/Dar_es_Salaam, Africa/Djibouti, Africa/Kampala,
      Africa/Mogadishu, Indian/Antananarivo, Indian/Comoro, and
      Indian/Mayotte.
  
    Changes affecting commentary
  
      The commentary is less enthusiastic about Shanks as a source,
      and is more careful to distinguish UT from UTC.

Modified:
  stable/8/share/zoneinfo/africa
  stable/8/share/zoneinfo/asia
  stable/8/share/zoneinfo/australasia
  stable/8/share/zoneinfo/europe
  stable/8/share/zoneinfo/northamerica
  stable/8/share/zoneinfo/southamerica
Directory Properties:
  stable/8/share/zoneinfo/   (props changed)

Modified: stable/8/share/zoneinfo/africa
==============================================================================
--- stable/8/share/zoneinfo/africa	Sun Nov 16 04:11:37 2014	(r274566)
+++ stable/8/share/zoneinfo/africa	Sun Nov 16 04:12:25 2014	(r274567)
@@ -6,20 +6,19 @@
 # tz at iana.org for general use in the future).  For more, please see
 # the file CONTRIBUTING in the tz distribution.
 
-# From Paul Eggert (2013-02-21):
+# From Paul Eggert (2014-10-31):
 #
-# A good source for time zone historical data outside the U.S. is
+# Unless otherwise specified, the source for data through 1990 is:
 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
 # San Diego: ACS Publications, Inc. (2003).
+# Unfortunately this book contains many errors and cites no sources.
 #
 # Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
 # 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 & Pottenger is the source for
-# entries through 1990, and IATA SSIM is the source for entries afterwards.
+# of the IATA's data after 1990.  Except where otherwise noted,
+# 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
@@ -65,7 +64,6 @@
 #	 3:00	CAST	Central Africa Summer Time (no longer used)
 #	 3:00	SAST	South Africa Summer Time (no longer used)
 #	 3:00	EAT	East Africa Time
-#	 4:00	EAST	East Africa Summer Time (no longer used)
 
 # Algeria
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
@@ -146,9 +144,7 @@ Zone	Africa/Ndjamena	1:00:12 -	LMT	1912 
 			1:00	-	WAT
 
 # Comoros
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Indian/Comoro	2:53:04 -	LMT	1911 Jul # Moroni, Gran Comoro
-			3:00	-	EAT
+# See Africa/Nairobi.
 
 # Democratic Republic of the Congo
 # See Africa/Lagos for the western part and Africa/Maputo for the eastern.
@@ -172,9 +168,7 @@ Link Africa/Abidjan Africa/Sao_Tome	# SÃ
 Link Africa/Abidjan Atlantic/St_Helena	# St Helena
 
 # Djibouti
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Africa/Djibouti	2:52:36 -	LMT	1911 Jul
-			3:00	-	EAT
+# See Africa/Nairobi.
 
 ###############################################################################
 
@@ -387,27 +381,8 @@ Zone	Africa/Cairo	2:05:09 -	LMT	1900 Oct
 # See Africa/Lagos.
 
 # Eritrea
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Africa/Asmara	2:35:32 -	LMT	1870
-			2:35:32	-	AMT	1890        # Asmara Mean Time
-			2:35:20	-	ADMT	1936 May  5 # Adis Dera MT
-			3:00	-	EAT
-
 # Ethiopia
-# From Paul Eggert (2014-07-31):
-# Like the Swahili of Kenya and Tanzania, many Ethiopians keep a
-# 12-hour clock starting at our 06:00, so their "8 o'clock" is our
-# 02:00 or 14:00.  Keep this in mind when you ask the time in Amharic.
-#
-# Shanks & Pottenger write that Ethiopia had six narrowly-spaced time
-# zones between 1870 and 1890, that they merged to 38E50 (2:35:20) in
-# 1890, and that they switched to 3:00 on 1936-05-05.  Perhaps 38E50
-# was for Adis Dera.  Quite likely the Shanks data entries are wrong
-# anyway.
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Africa/Addis_Ababa	2:34:48 -	LMT	1870
-			2:35:20	-	ADMT	1936 May  5 # Adis Dera MT
-			3:00	-	EAT
+# See Africa/Nairobi.
 
 # Gabon
 # See Africa/Lagos.
@@ -451,6 +426,15 @@ Zone	Africa/Nairobi	2:27:16	-	LMT	1928 J
 			2:30	-	BEAT	1940
 			2:45	-	BEAUT	1960
 			3:00	-	EAT
+Link Africa/Nairobi Africa/Addis_Ababa	 # Ethiopia
+Link Africa/Nairobi Africa/Asmara	 # Eritrea
+Link Africa/Nairobi Africa/Dar_es_Salaam # Tanzania
+Link Africa/Nairobi Africa/Djibouti
+Link Africa/Nairobi Africa/Kampala	 # Uganda
+Link Africa/Nairobi Africa/Mogadishu	 # Somalia
+Link Africa/Nairobi Indian/Antananarivo	 # Madagascar
+Link Africa/Nairobi Indian/Comoro
+Link Africa/Nairobi Indian/Mayotte
 
 # Lesotho
 # See Africa/Johannesburg.
@@ -528,11 +512,7 @@ Zone	Africa/Tripoli	0:52:44 -	LMT	1920
 			2:00	-	EET
 
 # Madagascar
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Indian/Antananarivo 3:10:04 -	LMT	1911 Jul
-			3:00	-	EAT	1954 Feb 27 23:00s
-			3:00	1:00	EAST	1954 May 29 23:00s
-			3:00	-	EAT
+# See Africa/Nairobi.
 
 # Malawi
 # See Africa/Maputo.
@@ -635,9 +615,7 @@ Zone Indian/Mauritius	3:50:00 -	LMT	1907
 # no information; probably like Indian/Mauritius
 
 # Mayotte
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Indian/Mayotte	3:00:56 -	LMT	1911 Jul # Mamoutzou
-			3:00	-	EAT
+# See Africa/Nairobi.
 
 # Morocco
 # See the 'europe' file for Spanish Morocco (Africa/Ceuta).
@@ -1049,11 +1027,7 @@ Zone	Indian/Mahe	3:41:48 -	LMT	1906 Jun 
 # See Africa/Abidjan.
 
 # Somalia
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Africa/Mogadishu	3:01:28 -	LMT	1893 Nov
-			3:00	-	EAT	1931
-			2:30	-	BEAT	1957
-			3:00	-	EAT
+# See Africa/Nairobi.
 
 # South Africa
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
@@ -1096,11 +1070,7 @@ Link Africa/Khartoum Africa/Juba
 # See Africa/Johannesburg.
 
 # Tanzania
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone Africa/Dar_es_Salaam 2:37:08 -	LMT	1931
-			3:00	-	EAT	1948
-			2:45	-	BEAUT	1961
-			3:00	-	EAT
+# See Africa/Nairobi.
 
 # Togo
 # See Africa/Abidjan.
@@ -1206,12 +1176,7 @@ Zone	Africa/Tunis	0:40:44 -	LMT	1881 May
 			1:00	Tunisia	CE%sT
 
 # Uganda
-# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Africa/Kampala	2:09:40 -	LMT	1928 Jul
-			3:00	-	EAT	1930
-			2:30	-	BEAT	1948
-			2:45	-	BEAUT	1957
-			3:00	-	EAT
+# See Africa/Nairobi.
 
 # Zambia
 # Zimbabwe

Modified: stable/8/share/zoneinfo/asia
==============================================================================
--- stable/8/share/zoneinfo/asia	Sun Nov 16 04:11:37 2014	(r274566)
+++ stable/8/share/zoneinfo/asia	Sun Nov 16 04:12:25 2014	(r274567)
@@ -6,20 +6,19 @@
 # tz at iana.org for general use in the future).  For more, please see
 # the file CONTRIBUTING in the tz distribution.
 
-# From Paul Eggert (2013-08-11):
+# From Paul Eggert (2014-10-31):
 #
-# A good source for time zone historical data outside the U.S. is
+# Unless otherwise specified, the source for data through 1990 is:
 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
 # San Diego: ACS Publications, Inc. (2003).
+# Unfortunately this book contains many errors and cites no sources.
 #
 # Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
 # 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 & Pottenger is the source for
-# entries through 1990, and IATA SSIM is the source for entries afterwards.
+# of the IATA's data after 1990.  Except where otherwise noted,
+# 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
@@ -1663,44 +1662,70 @@ Zone	Asia/Bishkek	4:58:24 -	LMT	1924 May
 # Korea (North and South)
 
 # From Annie I. Bang (2006-07-10):
-# http://www.koreaherald.co.kr/SITE/data/html_dir/2006/07/10/200607100012.asp
-# The Ministry of Commerce, Industry and Energy has already
-# commissioned a research project [to reintroduce DST] and has said
-# the system may begin as early as 2008....  Korea ran a daylight
-# saving program from 1949-61 but stopped it during the 1950-53 Korean War.
-
-# From Shanks & Pottenger:
-# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-Rule	ROK	1960	only	-	May	15	0:00	1:00	D
-Rule	ROK	1960	only	-	Sep	13	0:00	0	S
-Rule	ROK	1987	1988	-	May	Sun>=8	0:00	1:00	D
-Rule	ROK	1987	1988	-	Oct	Sun>=8	0:00	0	S
-
-# From Paul Eggert (2014-07-01):
-# The following entries are from Shanks & Pottenger, except that I
-# guessed that time zone abbreviations through 1945 followed the same
+# http://www.koreaherald.com/view.php?ud=200607100012
+# Korea ran a daylight saving program from 1949-61 but stopped it
+# during the 1950-53 Korean War.  The system was temporarily enforced
+# between 1987 and 1988 ...
+
+# From Sanghyuk Jung (2014-10-29):
+# http://mm.icann.org/pipermail/tz/2014-October/021830.html
+# According to the Korean Wikipedia
+# http://ko.wikipedia.org/wiki/한국_표준시
+# [oldid=12896437 2014-09-04 08:03 UTC]
+# DST in Republic of Korea was as follows....  And I checked old
+# newspapers in Korean, all articles correspond with data in Wikipedia.
+# For example, the article in 1948 (Korean Language) proved that DST
+# started at June 1 in that year.  For another example, the article in
+# 1988 said that DST started at 2:00 AM in that year.
+
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+Rule	ROK	1948	only	-	Jun	 1	0:00	1:00	D
+Rule	ROK	1948	only	-	Sep	13	0:00	0	S
+Rule	ROK	1949	only	-	Apr	 3	0:00	1:00	D
+Rule	ROK	1949	1951	-	Sep	Sun>=8	0:00	0	S
+Rule	ROK	1950	only	-	Apr	 1	0:00	1:00	D
+Rule	ROK	1951	only	-	May	 6	0:00	1:00	D
+Rule	ROK	1955	only	-	May	 5	0:00	1:00	D
+Rule	ROK	1955	only	-	Sep	 9	0:00	0	S
+Rule	ROK	1956	only	-	May	20	0:00	1:00	D
+Rule	ROK	1956	only	-	Sep	30	0:00	0	S
+Rule	ROK	1957	1960	-	May	Sun>=1	0:00	1:00	D
+Rule	ROK	1957	1960	-	Sep	Sun>=18	0:00	0	S
+Rule	ROK	1987	1988	-	May	Sun>=8	2:00	1:00	D
+Rule	ROK	1987	1988	-	Oct	Sun>=8	3:00	0	S
+
+# From Paul Eggert (2014-10-30):
+# The Korean Wikipedia entry gives the following sources for UT offsets:
+#
+# 1908: Official Journal Article No. 3994 (Edict No. 5)
+# 1912: Governor-General of Korea Official Gazette Issue No. 367
+#       (Announcement No. 338)
+# 1954: Presidential Decree No. 876 (1954-03-17)
+# 1961: Law No. 676 (1961-08-07)
+# 1987: Law No. 3919 (1986-12-31)
+#
+# The Wikipedia entry also has confusing information about a change
+# to UT+9 in April 1910, but then what would be the point of the later change
+# to UT+9 on 1912-01-01?  Omit the 1910 change for now.
+#
+# I guessed that time zone abbreviations through 1945 followed the same
 # rules as discussed under Taiwan, with nominal switches from JST to KST
 # when the respective cities were taken over by the Allies after WWII.
+#
+# For Pyongyang we have no information; guess no changes since World War II.
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
-Zone	Asia/Seoul	8:27:52	-	LMT	1890
-			8:30	-	KST	1904 Dec
-			9:00	-	JCST	1928
-			8:30	-	KST	1932
+Zone	Asia/Seoul	8:27:52	-	LMT	1908 Apr  1
+			8:30	-	KST	1912 Jan  1
 			9:00	-	JCST	1937 Oct  1
 			9:00	-	JST	1945 Sep  8
 			9:00	-	KST	1954 Mar 21
-			8:00	ROK	K%sT	1961 Aug 10
-			8:30	-	KST	1968 Oct
+			8:30	ROK	K%sT	1961 Aug 10
 			9:00	ROK	K%sT
-Zone	Asia/Pyongyang	8:23:00 -	LMT	1890
-			8:30	-	KST	1904 Dec
-			9:00	-	JCST	1928
-			8:30	-	KST	1932
+Zone	Asia/Pyongyang	8:23:00 -	LMT	1908 Apr  1
+			8:30	-	KST	1912 Jan  1
 			9:00	-	JCST	1937 Oct  1
 			9:00	-	JST	1945 Aug 24
-			9:00	-	KST	1954 Mar 21
-			8:00	-	KST	1961 Aug 10
 			9:00	-	KST
 
 ###############################################################################

Modified: stable/8/share/zoneinfo/australasia
==============================================================================
--- stable/8/share/zoneinfo/australasia	Sun Nov 16 04:11:37 2014	(r274566)
+++ stable/8/share/zoneinfo/australasia	Sun Nov 16 04:12:25 2014	(r274567)
@@ -797,19 +797,19 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # tz at iana.org for general use in the future).  For more, please see
 # the file CONTRIBUTING in the tz distribution.
 
-# From Paul Eggert (2013-02-21):
-# A good source for time zone historical data outside the U.S. is
+# From Paul Eggert (2014-10-31):
+#
+# Unless otherwise specified, the source for data through 1990 is:
 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
 # San Diego: ACS Publications, Inc. (2003).
+# Unfortunately this book contains many errors and cites no sources.
 #
 # Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
 # 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 & Pottenger is the source for
-# entries through 1990, and IATA SSIM is the source for entries afterwards.
+# of the IATA's data after 1990.  Except where otherwise noted,
+# 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

Modified: stable/8/share/zoneinfo/europe
==============================================================================
--- stable/8/share/zoneinfo/europe	Sun Nov 16 04:11:37 2014	(r274566)
+++ stable/8/share/zoneinfo/europe	Sun Nov 16 04:12:25 2014	(r274567)
@@ -6,16 +6,19 @@
 # tz at iana.org for general use in the future).  For more, please see
 # the file CONTRIBUTING in the tz distribution.
 
-# From Paul Eggert (2014-05-31):
-# A good source for time zone historical data outside the U.S. is
+# From Paul Eggert (2014-10-31):
+#
+# Unless otherwise specified, the source for data through 1990 is:
 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
 # San Diego: ACS Publications, Inc. (2003).
+# Unfortunately this book contains many errors and cites no sources.
 #
 # Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
 # Association's Standard Schedules Information Manual (IATA SSIM),
 # published semiannually.  Law sent in several helpful summaries
-# of the IATA's data after 1990.
+# of the IATA's data after 1990.  Except where otherwise noted,
+# IATA SSIM is the source for entries after 1990.
 #
 # A reliable and entertaining source about time zones is
 # Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
@@ -287,6 +290,14 @@
 #   "Timeball on the ballast office is down.  Dunsink time."
 #   -- James Joyce, Ulysses
 
+# "Countess Markievicz ... claimed that the [1916] abolition of Dublin Mean Time
+# was among various actions undertaken by the 'English' government that
+# would 'put the whole country into the SF (Sinn Féin) camp'.  She claimed
+# Irish 'public feeling (was) outraged by forcing of English time on us'."
+# -- Parsons M. Dublin lost its time zone - and 25 minutes - after 1916 Rising.
+# Irish Times 2014-10-27.
+# http://www.irishtimes.com/news/politics/dublin-lost-its-time-zone-and-25-minutes-after-1916-rising-1.1977411
+
 # From Joseph S. Myers (2005-01-26):
 # Irish laws are available online at <http://www.irishstatutebook.ie>.
 # These include various relating to legal time, for example:
@@ -594,6 +605,7 @@ Rule	Russia	1992	only	-	Sep	lastSat	 23:
 Rule	Russia	1993	2010	-	Mar	lastSun	 2:00s	1:00	S
 Rule	Russia	1993	1995	-	Sep	lastSun	 2:00s	0	-
 Rule	Russia	1996	2010	-	Oct	lastSun	 2:00s	0	-
+# As described below, Russia's 2014 change affects Zone data, not Rule data.
 
 # From Alexander Krivenyshev (2011-06-14):
 # According to Kremlin press service, Russian President Dmitry Medvedev

Modified: stable/8/share/zoneinfo/northamerica
==============================================================================
--- stable/8/share/zoneinfo/northamerica	Sun Nov 16 04:11:37 2014	(r274566)
+++ stable/8/share/zoneinfo/northamerica	Sun Nov 16 04:12:25 2014	(r274567)
@@ -991,19 +991,19 @@ Zone America/Menominee	-5:50:27 -	LMT	18
 ################################################################################
 
 
-# From Paul Eggert (2006-03-22):
-# A good source for time zone historical data outside the U.S. is
+# From Paul Eggert (2014-10-31):
+#
+# Unless otherwise specified, the source for data through 1990 is:
 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
 # San Diego: ACS Publications, Inc. (2003).
+# Unfortunately this book contains many errors and cites no sources.
 #
 # Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
 # 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 & Pottenger is the source for
-# entries through 1990, and IATA SSIM is the source for entries afterwards.
+# of the IATA's data after 1990.  Except where otherwise noted,
+# IATA SSIM is the source for entries after 1990.
 #
 # Other sources occasionally used include:
 #
@@ -3131,13 +3131,17 @@ Zone America/Miquelon	-3:44:40 -	LMT	191
 # From Paul Eggert (2014-08-19):
 # The 2014-08-13 Cabinet meeting decided to stay on UTC-4 year-round.  See:
 # http://tcweeklynews.com/daylight-savings-time-to-be-maintained-p5353-127.htm
-# Model this as a switch from EST/EDT to AST on 2014-11-02 at 02:00.
+# Model this as a switch from EST/EDT to AST ...
+# From Chris Walton (2014-11-04):
+# ... the TCI government appears to have delayed the switch to
+# "permanent daylight saving time" by one year....
+# http://tcweeklynews.com/time-change-to-go-ahead-this-november-p5437-127.htm
 #
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Grand_Turk	-4:44:32 -	LMT	1890
 			-5:07:11 -	KMT	1912 Feb # Kingston Mean Time
 			-5:00	-	EST	1979
-			-5:00	US	E%sT	2014 Nov  2  2:00
+			-5:00	US	E%sT	2015 Nov Sun>=1 2:00
 			-4:00	-	AST
 
 # British Virgin Is

Modified: stable/8/share/zoneinfo/southamerica
==============================================================================
--- stable/8/share/zoneinfo/southamerica	Sun Nov 16 04:11:37 2014	(r274566)
+++ stable/8/share/zoneinfo/southamerica	Sun Nov 16 04:12:25 2014	(r274567)
@@ -6,23 +6,23 @@
 # tz at iana.org for general use in the future).  For more, please see
 # the file CONTRIBUTING in the tz distribution.
 
-# From Paul Eggert (2006-03-22):
-# A good source for time zone historical data outside the U.S. is
+# From Paul Eggert (2014-10-31):
+#
+# Unless otherwise specified, the source for data through 1990 is:
 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
 # San Diego: ACS Publications, Inc. (2003).
-#
-# For data circa 1899, a common source is:
-# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
-# http://www.jstor.org/stable/1774359
+# Unfortunately this book contains many errors and cites no sources.
 #
 # Gwillim Law writes that a good source
 # for recent time zone data is the International Air Transport
 # Association's Standard Schedules Information Manual (IATA SSIM),
 # published semiannually.  Law sent in several helpful summaries
-# of the IATA's data after 1990.
+# of the IATA's data after 1990.  Except where otherwise noted,
+# IATA SSIM is the source for entries after 1990.
 #
-# Except where otherwise noted, Shanks & Pottenger is the source for
-# entries through 1990, and IATA SSIM is the source for entries afterwards.
+# For data circa 1899, a common source is:
+# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
+# http://www.jstor.org/stable/1774359
 #
 # Earlier editions of these tables used the North American style (e.g. ARST and
 # ARDT for Argentine Standard and Daylight Time), but the following quote


More information about the svn-src-stable-8 mailing list