diff --git a/src/data/timezones/asia b/src/data/timezones/asia
index 1987fc815b..e9780acff3 100644
--- a/src/data/timezones/asia
+++ b/src/data/timezones/asia
@@ -1,4 +1,4 @@
-# @(#)asia 8.44
+# @(#)asia 8.51
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.
@@ -196,6 +196,41 @@ Zone Asia/Bahrain 3:22:20 - LMT 1920 # Al Manamah
# http://www.thaindian.com/newsportal/business/bangladesh-to-continue-indefinitely-with-advanced-time_100259987.html
#
+# From Alexander Krivenyshev (2009-12-24):
+# According to Bangladesh newspaper "The Daily Star,"
+# Bangladesh will change its clock back to Standard Time on Dec 31, 2009.
+#
+# Clock goes back 1-hr on Dec 31 night.
+#
+# http://www.thedailystar.net/newDesign/news-details.php?nid=119228
+#
+# and
+#
+# http://www.worldtimezone.com/dst_news/dst_news_bangladesh05.html
+#
+#
+# "...The government yesterday decided to put the clock back by one hour
+# on December 31 midnight and the new time will continue until March 31,
+# 2010 midnight. The decision came at a cabinet meeting at the Prime
+# Minister's Office last night..."
+
+# From Danvin Ruangchan (2009-12-24):
+# ...the news mentions DST will be turned off again 7 months after March
+# 31st on Oct 31, 2010.
+
+# From Arthur David Olson (2009-12-26):
+# Indeed, "The government will advance again the Banglasdesh Standard
+# Time by one one hour on March 31 next year by enforcing the Daylight
+# Saving Time (DST) for seven months. It will continue till October 31
+# until further notice." I take that last sentence as the
+# establishment of a rule.
+
+# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
+Rule Dhaka 2009 only - Jun 19 23:00 1:00 S
+Rule Dhaka 2010 only - Jan 1 0:00 0 -
+Rule Dhaka 2010 max - Mar 31 23:00 1:00 S
+Rule Dhaka 2010 max - Nov 1 0:00 0 -
+
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Dhaka 6:01:40 - LMT 1890
5:53:20 - HMT 1941 Oct # Howrah Mean Time?
@@ -203,8 +238,8 @@ Zone Asia/Dhaka 6:01:40 - LMT 1890
5:30 - IST 1942 Sep
6:30 - BURT 1951 Sep 30
6:00 - DACT 1971 Mar 26 # Dacca Time
- 6:00 - BDT 2009 Jun 19 23:00 # Bangladesh Time
- 6:00 1:00 BDST
+ 6:00 - BDT 2009
+ 6:00 Dhaka BD%sT
# Bhutan
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
@@ -363,6 +398,69 @@ Zone Asia/Urumqi 5:50:20 - LMT 1928 # or Urumchi
# West Xinjiang, including Aksu, Atushi, Yining, Hetian, Cele, Luopu, Nileke,
# Zhaosu, Tekesi, Gongliu, Chabuchaer, Huocheng, Bole, Pishan, Suiding,
# and Yarkand.
+
+# From Luther Ma (2009-10-17):
+# Almost all (>99.9%) ethnic Chinese (properly ethnic Han) living in
+# Xinjiang use Chinese Standard Time. Some are aware of Xinjiang time,
+# but have no need of it. All planes, trains, and schools function on
+# what is called "Beijing time." When Han make an appointment in Chinese
+# they implicitly use Beijing time.
+#
+# On the other hand, ethnic Uyghurs, who make up about half the
+# population of Xinjiang, typically use "Xinjiang time" which is two
+# hours behind Beijing time, or UTC +0600. The government of the Xinjiang
+# Uyghur Autonomous Region, (XAUR, or just Xinjiang for short) as well as
+# local governments such as the Urumqi city government use both times in
+# publications, referring to what is popularly called Xinjiang time as
+# "Urumqi time." When Uyghurs make an appointment in the Uyghur language
+# they almost invariably use Xinjiang time.
+#
+# (Their ethnic Han compatriots would typically have no clue of its
+# widespread use, however, because so extremely few of them are fluent in
+# Uyghur, comparable to the number of Anglo-Americans fluent in Navajo.)
+#
+# (...As with the rest of China there was a brief interval ending in 1990
+# or 1991 when summer time was in use. The confusion was severe, with
+# the province not having dual times but four times in use at the same
+# time. Some areas remained on standard Xinjiang time or Beijing time and
+# others moving their clocks ahead.)
+#
+# ...an example of an official website using of Urumqi time.
+#
+# The first few lines of the Google translation of
+#
+# http://www.fjysgl.gov.cn/show.aspx?id=2379&cid=39
+#
+# (retrieved 2009-10-13)
+# > Urumqi fire seven people are missing the alleged losses of at least
+# > 500 million yuan
+# >
+# > (Reporter Dong Liu) the day before 20:20 or so (Urumqi Time 18:20),
+# > Urumqi City Department of International Plaza Luther Qiantang River
+# > burst fire. As of yesterday, 18:30, Urumqi City Fire officers and men
+# > have worked continuously for 22 hours...
+
+# From Luther Ma (2009-11-19):
+# With the risk of being redundant to previous answers these are the most common
+# English "transliterations" (w/o using non-English symbols):
+#
+# 1. Wulumuqi...
+# 2. Kashi...
+# 3. Urumqi...
+# 4. Kashgar...
+# ...
+# 5. It seems that Uyghurs in Urumqi has been using Xinjiang since at least the
+# 1960's. I know of one Han, now over 50, who grew up in the surrounding
+# countryside and used Xinjiang time as a child.
+#
+# 6. Likewise for Kashgar and the rest of south Xinjiang I don't know of any
+# start date for Xinjiang time.
+#
+# Without having access to local historical records, nor the ability to legally
+# publish them, I would go with October 1, 1949, when Xinjiang became the Uyghur
+# Autonomous Region under the PRC. (Before that Uyghurs, of course, would also
+# not be using Beijing time, but some local time.)
+
Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar
5:30 - KAST 1940 # Kashgar Time
5:00 - KAST 1980 May
@@ -370,8 +468,8 @@ Zone Asia/Kashgar 5:03:56 - LMT 1928 # or Kashi or Kaxgar
# From Lee Yiu Chung (2009-10-24):
-# I found there are some mistakes for the historial DST rule for Hong
-# Kong. Accoring to the DST record from Hong Kong Observatory (actually,
+# I found there are some mistakes for the...DST rule for Hong
+# Kong. [According] to the DST record from Hong Kong Observatory (actually,
# it is not [an] observatory, but the official meteorological agency of HK,
# and also serves as the official timing agency), there are some missing
# and incorrect rules. Although the exact switch over time is missing, I
diff --git a/src/data/timezones/europe b/src/data/timezones/europe
index 66ab880e8e..05e3caec3a 100644
--- a/src/data/timezones/europe
+++ b/src/data/timezones/europe
@@ -1,5 +1,5 @@
#
-# @(#)europe 8.24
+# @(#)europe 8.25
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.
@@ -2130,12 +2130,20 @@ Zone Asia/Irkutsk 6:57:20 - LMT 1880
# From Oscar van Vlijmen (2003-10-18): [This region consists of]
# Aginskij Buryatskij avtonomnyj okrug, Amurskaya oblast',
# [parts of] Respublika Sakha (Yakutiya), Chitinskaya oblast'.
+
+# From Oscar van Vlijmen (2009-11-29):
+# ...some regions of RUssia were merged with others since 2005...
+# Some names were changed, no big deal, except for one instance: a new name.
+# YAK/YAKST: UTC+9 Zabajkal'skij kraj.
+
+# From Oscar van Vlijmen (2009-11-29):
# The Sakha districts are: Aldanskij, Amginskij, Anabarskij,
-# Bulunskij, Verkhnekolymskij, Verkhnevilyujskij, Vilyujskij, Gornyj,
+# Verkhnevilyujskij, Vilyujskij, Gornyj,
# Zhiganskij, Kobyajskij, Lenskij, Megino-Kangalasskij, Mirninskij,
-# Namskij, Nyurbinskij, Olenekskij, Olekminskij, Srednekolymskij,
+# Namskij, Nyurbinskij, Olenyokskij, Olyokminskij,
# Suntarskij, Tattinskij, Ust'-Aldanskij, Khangalasskij,
-# Churapchinskij, Eveno-Bytantajskij.
+# Churapchinskij, Eveno-Bytantajskij Natsional'nij.
+
Zone Asia/Yakutsk 8:38:40 - LMT 1919 Dec 15
8:00 - YAKT 1930 Jun 21 # Yakutsk Time
9:00 Russia YAK%sT 1991 Mar 31 2:00s
@@ -2145,7 +2153,9 @@ Zone Asia/Yakutsk 8:38:40 - LMT 1919 Dec 15
# From Oscar van Vlijmen (2003-10-18): [This region consists of]
# Evrejskaya avtonomnaya oblast', Khabarovskij kraj, Primorskij kraj,
# [parts of] Respublika Sakha (Yakutiya).
-# The Sakha districts are: Verkhoyanskij, Tomponskij, Ust'-Majskij,
+
+# From Oscar van Vlijmen (2009-11-29):
+# The Sakha districts are: Bulunskij, Verkhoyanskij, Tomponskij, Ust'-Majskij,
# Ust'-Yanskij.
Zone Asia/Vladivostok 8:47:44 - LMT 1922 Nov 15
9:00 - VLAT 1930 Jun 21 # Vladivostok Time
@@ -2166,8 +2176,10 @@ Zone Asia/Sakhalin 9:30:48 - LMT 1905 Aug 23
# From Oscar van Vlijmen (2003-10-18): [This region consists of]
# Magadanskaya oblast', Respublika Sakha (Yakutiya).
# Probably also: Kuril Islands.
-# The Sakha districts are: Abyjskij, Allaikhovskij, Momskij,
-# Nizhnekolymskij, Ojmyakonskij.
+
+# From Oscar van Vlijmen (2009-11-29):
+# The Sakha districts are: Abyjskij, Allaikhovskij, Verkhhhnekolymskij, Momskij,
+# Nizhnekolymskij, Ojmyakonskij, Srednekolymskij.
Zone Asia/Magadan 10:03:12 - LMT 1924 May 2
10:00 - MAGT 1930 Jun 21 # Magadan Time
11:00 Russia MAG%sT 1991 Mar 31 2:00s
diff --git a/src/data/timezones/northamerica b/src/data/timezones/northamerica
index 236922d754..5c25664b23 100644
--- a/src/data/timezones/northamerica
+++ b/src/data/timezones/northamerica
@@ -1,5 +1,5 @@
#
-# @(#)northamerica 8.28
+# @(#)northamerica 8.30
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.
@@ -1955,6 +1955,58 @@ Zone America/Dawson -9:17:40 - LMT 1900 Aug 20
# http://www.conae.gob.mx/ahorro/horaver2001_m1_2002.html (2002-02-20)
# confirms this. Sonora as usual is the only state where DST is not applied.
+# From Steffen Thorsen (2009-12-28):
+#
+# Steffen Thorsen wrote:
+# > Mexico's House of Representatives has approved a proposal for northern
+# > Mexico's border cities to share the same daylight saving schedule as
+# > the United States.
+# Now this has passed both the Congress and the Senate, so starting from
+# 2010, some border regions will be the same:
+#
+# http://www.signonsandiego.com/news/2009/dec/28/clocks-will-match-both-sides-border/
+#
+#
+# http://www.elmananarey.com/diario/noticia/nacional/noticias/empatan_horario_de_frontera_con_eu/621939
+#
+# (Spanish)
+#
+# Could not find the new law text, but the proposed law text changes are here:
+#
+# http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/20091210-V.pdf
+#
+# (Gaceta Parlamentaria)
+#
+# There is also a list of the votes here:
+#
+# http://gaceta.diputados.gob.mx/Gaceta/61/2009/dic/V2-101209.html
+#
+#
+# Our page:
+#
+# http://www.timeanddate.com/news/time/north-mexico-dst-change.html
+#
+
+# From Arthur David Olson (2010-01-20):
+# The page
+#
+# http://dof.gob.mx/nota_detalle.php?codigo=5127480&fecha=06/01/2010
+#
+# includes this text:
+# En los municipios fronterizos de Tijuana y Mexicali en Baja California;
+# Juárez y Ojinaga en Chihuahua; Acuña y Piedras Negras en Coahuila;
+# Anáhuac en Nuevo León; y Nuevo Laredo, Reynosa y Matamoros en
+# Tamaulipas, la aplicación de este horario estacional surtirá efecto
+# desde las dos horas del segundo domingo de marzo y concluirá a las dos
+# horas del primer domingo de noviembre.
+# En los municipios fronterizos que se encuentren ubicados en la franja
+# fronteriza norte en el territorio comprendido entre la línea
+# internacional y la línea paralela ubicada a una distancia de veinte
+# kilómetros, así como la Ciudad de Ensenada, Baja California, hacia el
+# interior del país, la aplicación de este horario estacional surtirá
+# efecto desde las dos horas del segundo domingo de marzo y concluirá a
+# las dos horas del primer domingo de noviembre.
+
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Mexico 1939 only - Feb 5 0:00 1:00 D
Rule Mexico 1939 only - Jun 25 0:00 0 S
@@ -1981,13 +2033,19 @@ Zone America/Merida -5:58:28 - LMT 1922 Jan 1 0:01:32
-6:00 - CST 1981 Dec 23
-5:00 - EST 1982 Dec 2
-6:00 Mexico C%sT
-# Coahuila, Durango, Nuevo Leon, Tamaulipas
+# Coahuila, Durango, Nuevo Leon, Tamaulipas (near US border)
+Zone America/Matamoros -6:40:00 - LMT 1921 Dec 31 23:20:00
+ -6:00 - CST 1988
+ -6:00 US C%sT 1989
+ -6:00 Mexico C%sT 2010
+ -6:00 US C%sT
+# Coahuila, Durango, Nuevo Leon, Tamaulipas (away from US border)
Zone America/Monterrey -6:41:16 - LMT 1921 Dec 31 23:18:44
-6:00 - CST 1988
-6:00 US C%sT 1989
-6:00 Mexico C%sT
# Central Mexico
-Zone America/Mexico_City -6:36:36 - LMT 1922 Jan 1 0:23:24
+Zone America/Mexico_City -6:36:36 - LMT 1922 Jan 1 0:23:24
-7:00 - MST 1927 Jun 10 23:00
-6:00 - CST 1930 Nov 15
-7:00 - MST 1931 May 1 23:00
@@ -1996,7 +2054,19 @@ Zone America/Mexico_City -6:36:36 - LMT 1922 Jan 1 0:23:24
-6:00 Mexico C%sT 2001 Sep 30 02:00
-6:00 - CST 2002 Feb 20
-6:00 Mexico C%sT
-# Chihuahua
+# Chihuahua (near US border)
+Zone America/Ojinaga -6:57:40 - LMT 1922 Jan 1 0:02:20
+ -7:00 - MST 1927 Jun 10 23:00
+ -6:00 - CST 1930 Nov 15
+ -7:00 - MST 1931 May 1 23:00
+ -6:00 - CST 1931 Oct
+ -7:00 - MST 1932 Apr 1
+ -6:00 - CST 1996
+ -6:00 Mexico C%sT 1998
+ -6:00 - CST 1998 Apr Sun>=1 3:00
+ -7:00 Mexico M%sT 2010
+ -7:00 US M%sT
+# Chihuahua (away from US border)
Zone America/Chihuahua -7:04:20 - LMT 1921 Dec 31 23:55:40
-7:00 - MST 1927 Jun 10 23:00
-6:00 - CST 1930 Nov 15
@@ -2030,8 +2100,28 @@ Zone America/Mazatlan -7:05:40 - LMT 1921 Dec 31 23:54:20
-7:00 - MST 1949 Jan 14
-8:00 - PST 1970
-7:00 Mexico M%sT
-# Baja California
+# Baja California (near US border)
Zone America/Tijuana -7:48:04 - LMT 1922 Jan 1 0:11:56
+ -7:00 - MST 1924
+ -8:00 - PST 1927 Jun 10 23:00
+ -7:00 - MST 1930 Nov 15
+ -8:00 - PST 1931 Apr 1
+ -8:00 1:00 PDT 1931 Sep 30
+ -8:00 - PST 1942 Apr 24
+ -8:00 1:00 PWT 1945 Aug 14 23:00u
+ -8:00 1:00 PPT 1945 Nov 12 # Peace
+ -8:00 - PST 1948 Apr 5
+ -8:00 1:00 PDT 1949 Jan 14
+ -8:00 - PST 1954
+ -8:00 CA P%sT 1961
+ -8:00 - PST 1976
+ -8:00 US P%sT 1996
+ -8:00 Mexico P%sT 2001
+ -8:00 US P%sT 2002 Feb 20
+ -8:00 Mexico P%sT 2010
+ -8:00 US P%sT
+# Baja California (away from US border)
+Zone America/Santa_Isabel -7:39:28 - LMT 1922 Jan 1 0:20:32
-7:00 - MST 1924
-8:00 - PST 1927 Jun 10 23:00
-7:00 - MST 1930 Nov 15
diff --git a/src/data/timezones/zone.tab b/src/data/timezones/zone.tab
index 0f919414d4..2792d57eca 100644
--- a/src/data/timezones/zone.tab
+++ b/src/data/timezones/zone.tab
@@ -1,5 +1,5 @@
#
-# @(#)zone.tab 8.29
+# @(#)zone.tab 8.33
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.
#
@@ -279,11 +279,14 @@ MW -1547+03500 Africa/Blantyre
MX +1924-09909 America/Mexico_City Central Time - most locations
MX +2105-08646 America/Cancun Central Time - Quintana Roo
MX +2058-08937 America/Merida Central Time - Campeche, Yucatan
-MX +2540-10019 America/Monterrey Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas
+MX +2540-10019 America/Monterrey Mexican Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas away from US border
+MX +2550-09730 America/Matamoros US Central Time - Coahuila, Durango, Nuevo Leon, Tamaulipas near US border
MX +2313-10625 America/Mazatlan Mountain Time - S Baja, Nayarit, Sinaloa
-MX +2838-10605 America/Chihuahua Mountain Time - Chihuahua
+MX +2838-10605 America/Chihuahua Mexican Mountain Time - Chihuahua away from US border
+MX +2934-10425 America/Ojinaga US Mountain Time - Chihuahua near US border
MX +2904-11058 America/Hermosillo Mountain Standard Time - Sonora
-MX +3232-11701 America/Tijuana Pacific Time
+MX +3232-11701 America/Tijuana US Pacific Time - Baja California near US border
+MX +3018-11452 America/Santa_Isabel Mexican Pacific Time - Baja California away from US border
MY +0310+10142 Asia/Kuala_Lumpur peninsular Malaysia
MY +0133+11020 Asia/Kuching Sabah & Sarawak
MZ -2558+03235 Africa/Maputo