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Incorporate data from Milne (1899).

The source is: Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
<http://www.jstor.org/stable/1774359>.
* africa (Africa/Gaborone, Africa/Cairo):
* asia (Asia/Rangoon, Asia/Shanghai, Asia/Hong_Kong, Asia/Aden):
* australasia (Pacific/Fiji):
* europe (Europe/Vienna):
* northamerica (America/Nassau, America/Barbados, Atlantic/Bermuda)
(America/Costa_Rica):
* southamerica (America/Bogota, America/Curacao):
Adjust old time stamps to match Milne.  I went going through
Milne's list one by one and did not finish, but the rest can be
done later.
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1 parent 0993625 commit 68efd697628085f6461f66d8429431175f91c09a @eggert committed Feb 21, 2013
Showing with 117 additions and 21 deletions.
  1. +15 −2 africa
  2. +41 −7 asia
  3. +9 −2 australasia
  4. +9 −1 europe
  5. +25 −6 northamerica
  6. +18 −3 southamerica
View
17 africa
@@ -6,7 +6,7 @@
# go ahead and edit the file (and please send any changes to
# tz@iana.org for general use in the future).
-# From Paul Eggert (2006-03-22):
+# From Paul Eggert (2013-02-21):
#
# A good source for time zone historical data outside the U.S. is
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
@@ -25,6 +25,10 @@
# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
# I found in the UCLA library.
#
+# 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>.
+#
# A reliable and entertaining source about time zones is
# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
#
@@ -116,8 +120,12 @@ Zone Africa/Porto-Novo 0:10:28 - LMT 1912
1:00 - WAT
# Botswana
+# From Paul Eggert (2013-02-21):
+# Milne says they were regulated by the Cape Town Signal in 1899;
+# assume they switched to 2:00 when Cape Town did.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Africa/Gaborone 1:43:40 - LMT 1885
+ 1:30 - SAST 1903 Mar
2:00 - CAT 1943 Sep 19 2:00
2:00 1:00 CAST 1944 Mar 19 2:00
2:00 - CAT
@@ -189,6 +197,11 @@ Zone Africa/Djibouti 2:52:36 - LMT 1911 Jul
# Egypt
+# Milne says Cairo used 2:05:08.9, the local mean time of the Abbasizeh
+# observatory; round to nearest. Milne also says that the official time for
+# Egypt was mean noon at the Great Pyramid, 2:04:30.5, but apparently this
+# did not apply to Cairo, Alexandria, or Port Said.
+
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Egypt 1940 only - Jul 15 0:00 1:00 S
Rule Egypt 1940 only - Oct 1 0:00 0 -
@@ -329,7 +342,7 @@ Rule Egypt 2010 only - Sep 10 0:00 1:00 S
Rule Egypt 2010 only - Sep lastThu 23:00s 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
-Zone Africa/Cairo 2:05:00 - LMT 1900 Oct
+Zone Africa/Cairo 2:05:09 - LMT 1900 Oct
2:00 Egypt EE%sT
# Equatorial Guinea
View
48 asia
@@ -6,7 +6,7 @@
# go ahead and edit the file (and please send any changes to
# tz@iana.org for general use in the future).
-# From Paul Eggert (2006-03-22):
+# From Paul Eggert (2013-02-21):
#
# A good source for time zone historical data outside the U.S. is
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
@@ -25,6 +25,10 @@
# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
# I found in the UCLA library.
#
+# 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>.
+#
# A reliable and entertaining source about time zones is
# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
#
@@ -279,9 +283,12 @@ Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan
8:00 - BNT
# Burma / Myanmar
+
+# Milne says 6:24:40 was the meridian of the time ball observatory at Rangoon.
+
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Rangoon 6:24:40 - LMT 1880 # or Yangon
- 6:24:36 - RMT 1920 # Rangoon Mean Time?
+ 6:24:40 - RMT 1920 # Rangoon Mean Time?
6:30 - BURT 1942 May # Burma Time
9:00 - JST 1945 May 3
6:30 - MMT # Myanmar Time
@@ -384,7 +391,8 @@ Zone Asia/Harbin 8:26:44 - LMT 1928 # or Haerbin
8:00 PRC C%sT
# Zhongyuan Time ("Central plain Time")
# most of China
-Zone Asia/Shanghai 8:05:52 - LMT 1928
+# Milne gives 8:05:56.7; round to nearest.
+Zone Asia/Shanghai 8:05:57 - LMT 1928
8:00 Shang C%sT 1949
8:00 PRC C%sT
# Long-shu Time (probably due to Long and Shu being two names of that area)
@@ -481,6 +489,10 @@ Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar
8:00 PRC C%sT
+# Hong Kong (Xianggang)
+
+# Milne gives 7:36:41.7; round this.
+
# From Lee Yiu Chung (2009-10-24):
# I found there are some mistakes for the...DST rule for Hong
# Kong. [According] to the DST record from Hong Kong Observatory (actually,
@@ -547,7 +559,6 @@ Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar
# The Japanese surrender of Hong Kong was signed 1945-09-15.
# For lack of anything better, use start of those days as the transition times.
-# Hong Kong (Xianggang)
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule HK 1941 only - Apr 1 3:30 1:00 S
Rule HK 1941 only - Sep 30 3:30 0 -
@@ -569,7 +580,7 @@ Rule HK 1973 only - Dec 30 3:30 1:00 S
Rule HK 1979 only - May Sun>=8 3:30 1:00 S
Rule HK 1979 only - Oct Sun>=16 3:30 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
-Zone Asia/Hong_Kong 7:36:36 - LMT 1904 Oct 30
+Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30
8:00 HK HK%sT 1941 Dec 25
9:00 - JST 1945 Sep 15
8:00 HK HK%sT
@@ -646,6 +657,9 @@ Zone Asia/Macau 7:34:20 - LMT 1912
###############################################################################
# Cyprus
+#
+# Milne says the Eastern Telegraph Company used 2:14:00. Stick with LMT.
+#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Cyprus 1975 only - Apr 13 0:00 1:00 S
Rule Cyprus 1975 only - Oct 12 0:00 0 -
@@ -1804,8 +1818,11 @@ Zone Asia/Kathmandu 5:41:16 - LMT 1920
5:45 - NPT # Nepal Time
# Oman
+
+# Milne says 3:54:24 was the meridian of the Muscat Tidal Observatory.
+
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
-Zone Asia/Muscat 3:54:20 - LMT 1920
+Zone Asia/Muscat 3:54:24 - LMT 1920
4:00 - GST
# Pakistan
@@ -2400,6 +2417,13 @@ Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1
# no information
# Sri Lanka
+
+# From Paul Eggert (2013-02-21):
+# Milne says "Madras mean time use from May 1, 1898. Prior to this Colombo
+# mean time, 5h. 4m. 21.9s. F., was used." But 5:04:21.9 differs considerably
+# from Colombo's meridian 5:19:24, so for now ignore Milne and stick with
+# Shanks and Pottenger.
+
# From Paul Eggert (1996-09-03):
# "Sri Lanka advances clock by an hour to avoid blackout"
# (www.virtual-pc.com/lankaweb/news/items/240596-2.html, 1996-05-24,
@@ -2699,6 +2723,12 @@ Zone Asia/Tashkent 4:37:12 - LMT 1924 May 2
# Vietnam
+# From Paul Eggert (2013-02-21):
+# Milne gives 7:16:56 for the meridian of Saigon in 1899, as being
+# used in Lower Laos, Cambodia, and Annam. But this is quite a ways
+# from Saigon's location. For now, ignore this and stick with Shanks
+# and Pottenger.
+
# From Arthur David Olson (2008-03-18):
# The English-language name of Vietnam's most populous city is "Ho Chi Min City";
# we use Ho_Chi_Minh below to avoid a name of more than 14 characters.
@@ -2712,6 +2742,10 @@ Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jun 9
7:00 - ICT
# Yemen
+
+# Milne says 2:59:54 was the meridian of the saluting battery at Aden,
+# and that Yemen was at 1:55:56, the meridian of the Hagia Sophia.
+
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
-Zone Asia/Aden 3:00:48 - LMT 1950
+Zone Asia/Aden 2:59:54 - LMT 1950
3:00 - AST
View
@@ -246,6 +246,9 @@ Zone Indian/Cocos 6:27:40 - LMT 1900
6:30 - CCT # Cocos Islands Time
# Fiji
+
+# Milne gives 11:55:44 for Suva.
+
# From Alexander Krivenyshev (2009-11-10):
# According to Fiji Broadcasting Corporation, Fiji plans to re-introduce DST
# from November 29th 2009 to April 25th 2010.
@@ -339,7 +342,7 @@ Rule Fiji 2010 max - Oct Sun>=18 2:00 1:00 S
Rule Fiji 2011 only - Mar Sun>=1 3:00 0 -
Rule Fiji 2012 max - Jan Sun>=18 3:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
-Zone Pacific/Fiji 11:53:40 - LMT 1915 Oct 26 # Suva
+Zone Pacific/Fiji 11:55:44 - LMT 1915 Oct 26 # Suva
12:00 Fiji FJ%sT # Fiji Time
# French Polynesia
@@ -782,7 +785,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# go ahead and edit the file (and please send any changes to
# tz@iana.org for general use in the future).
-# From Paul Eggert (2006-03-22):
+# From Paul Eggert (2013-02-21):
# A good source for time zone historical data outside the U.S. is
# Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
# San Diego: ACS Publications, Inc. (2003).
@@ -800,6 +803,10 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated), which
# I found in the UCLA library.
#
+# 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>.
+#
# A reliable and entertaining source about time zones is
# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
#
View
10 europe
@@ -30,6 +30,12 @@
# William Willett, The Waste of Daylight, 19th edition
# </a> (1914-03)
#
+# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
+# <http://www.jstor.org/stable/1774359>. He writes:
+# "It is requested that corrections and additions to these tables
+# may be sent to Mr. John Milne, Royal Geographical Society,
+# Savile Row, London." Nowadays please email them to tz@iana.org.
+#
# Brazil's Departamento Servico da Hora (DSH),
# <a href="http://pcdsh01.on.br/HISTHV.htm">
# History of Summer Time
@@ -666,6 +672,8 @@ Zone Europe/Andorra 0:06:04 - LMT 1901
# Austria
+# Milne says Vienna time was 1:05:21.
+
# From Paul Eggert (2006-03-22): Shanks & Pottenger give 1918-06-16 and
# 1945-11-18, but the Austrian Federal Office of Metrology and
# Surveying (BEV) gives 1918-09-16 and for Vienna gives the "alleged"
@@ -683,7 +691,7 @@ Rule Austria 1948 only - Apr 18 2:00s 1:00 S
Rule Austria 1980 only - Apr 6 0:00 1:00 S
Rule Austria 1980 only - Sep 28 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
-Zone Europe/Vienna 1:05:20 - LMT 1893 Apr
+Zone Europe/Vienna 1:05:21 - LMT 1893 Apr
1:00 C-Eur CE%sT 1920
1:00 Austria CE%sT 1940 Apr 1 2:00s
1:00 C-Eur CE%sT 1945 Apr 2 2:00s
View
@@ -1019,6 +1019,9 @@ Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00
# William Willett, The Waste of Daylight, 19th edition
# </a> (1914-03)
#
+# Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
+# <http://www.jstor.org/stable/1774359>.
+#
# See the `europe' file for Greenland.
# Canada
@@ -2554,6 +2557,8 @@ Zone America/Antigua -4:07:12 - LMT 1912 Mar 2
# Bahamas
#
+# For 1899 Milne gives -5:09:29.5; round that.
+#
# From Sue Williams (2006-12-07):
# The Bahamas announced about a month ago that they plan to change their DST
# rules to sync with the U.S. starting in 2007....
@@ -2563,20 +2568,23 @@ Zone America/Antigua -4:07:12 - LMT 1912 Mar 2
Rule Bahamas 1964 1975 - Oct lastSun 2:00 0 S
Rule Bahamas 1964 1975 - Apr lastSun 2:00 1:00 D
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
-Zone America/Nassau -5:09:24 - LMT 1912 Mar 2
+Zone America/Nassau -5:09:30 - LMT 1912 Mar 2
-5:00 Bahamas E%sT 1976
-5:00 US E%sT
# Barbados
+
+# For 1899 Milne gives -3:58:29.2; round that.
+
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Barb 1977 only - Jun 12 2:00 1:00 D
Rule Barb 1977 1978 - Oct Sun>=1 2:00 0 S
Rule Barb 1978 1980 - Apr Sun>=15 2:00 1:00 D
Rule Barb 1979 only - Sep 30 2:00 0 S
Rule Barb 1980 only - Sep 25 2:00 0 S
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
-Zone America/Barbados -3:58:28 - LMT 1924 # Bridgetown
- -3:58:28 - BMT 1932 # Bridgetown Mean Time
+Zone America/Barbados -3:58:29 - LMT 1924 # Bridgetown
+ -3:58:29 - BMT 1932 # Bridgetown Mean Time
-4:00 Barb A%sT
# Belize
@@ -2594,6 +2602,9 @@ Zone America/Belize -5:52:48 - LMT 1912 Apr
# Bermuda
+# For 1899 Milne gives -4:19:18.3 as the meridian of the clock tower,
+# Bermuda dockyard, Ireland I; round that.
+
# From Dan Jones, reporting in The Royal Gazette (2006-06-26):
# Next year, however, clocks in the US will go forward on the second Sunday
@@ -2603,7 +2614,7 @@ Zone America/Belize -5:52:48 - LMT 1912 Apr
# http://www.theroyalgazette.com/apps/pbcs.dll/article?AID=/20060529/NEWS/105290135
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
-Zone Atlantic/Bermuda -4:19:04 - LMT 1930 Jan 1 2:00 # Hamilton
+Zone Atlantic/Bermuda -4:19:18 - LMT 1930 Jan 1 2:00 # Hamilton
-4:00 - AST 1974 Apr 28 2:00
-4:00 Bahamas A%sT 1976
-4:00 US A%sT
@@ -2615,6 +2626,9 @@ Zone America/Cayman -5:25:32 - LMT 1890 # Georgetown
-5:00 - EST
# Costa Rica
+
+# Milne gives -5:36:13.3 as San Jose mean time; round to nearest.
+
# 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
@@ -2625,14 +2639,19 @@ 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
- -5:36:20 - SJMT 1921 Jan 15 # San Jose Mean Time
+Zone America/Costa_Rica -5:36:13 - LMT 1890 # San Jose
+ -5:36:13 - SJMT 1921 Jan 15 # San Jose Mean Time
-6:00 CR C%sT
# Coco
# no information; probably like America/Costa_Rica
# Cuba
+# From Paul Eggert (2013-02-21):
+# Milne gives -5:28:50.45 for the observatory at Havana, -5:29:23.57
+# for the port, and -5:30 for meteorological observations.
+# For now, stick with Shanks & Pottenger.
+
# From Arthur David Olson (1999-03-29):
# The 1999-03-28 exhibition baseball game held in Havana, Cuba, between
# the Cuban National Team and the Baltimore Orioles was carried live on
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