[tz] [PROPOSED PATCH 1/4] Prefer +-NN notation for UT-offset time zones in comments.
Paul Eggert
eggert at cs.ucla.edu
Tue Aug 23 23:55:42 UTC 2016
This does not change any code or data; just comments.
---
NEWS | 38 +++++++++++++++++++-------------------
Theory | 2 +-
africa | 2 +-
asia | 51 +++++++++++++++++++++++++--------------------------
australasia | 26 +++++++++++++-------------
backzone | 14 +++++++-------
europe | 8 +-------
localtime.c | 2 +-
northamerica | 2 +-
private.h | 1 +
southamerica | 4 ++--
11 files changed, 72 insertions(+), 78 deletions(-)
diff --git a/NEWS b/NEWS
index 4c18e55..b0da284 100644
--- a/NEWS
+++ b/NEWS
@@ -465,7 +465,7 @@ Release 2015d - 2015-04-24 08:09:46 -0700
Changes affecting past time stamps
- America/Whitehorse switched from UTC-9 to UTC-8 on 1967-05-28, not
+ America/Whitehorse switched from -09 to -08 on 1967-05-28, not
1966-07-01. Also, Yukon's time zone history is documented better.
(Thanks to Brian Inglis and Dennis Ferguson.)
@@ -499,12 +499,12 @@ Release 2015c - 2015-04-11 08:55:55 -0700
The 1918 transition was September 10, not September 1.
- The UTC-4 time observed from 1932 to 1942 is now considered to be
+ The -04 time observed from 1932 to 1942 is now considered to be
standard time, not year-round DST.
- Santiago observed DST (UTC-3) from 1946-07-15 through 1946-08-31,
+ Santiago observed DST (-03) from 1946-07-15 through 1946-08-31,
then reverted to standard time, then switched its time zone to
- UTC-5 on 1947-04-01.
+ -05 on 1947-04-01.
Assume transitions before 1968 were at 00:00, since we have no data
saying otherwise.
@@ -633,7 +633,7 @@ 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
+ Turks & Caicos' switch from US eastern time to -04 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.)
@@ -669,7 +669,7 @@ Release 2014i - 2014-10-21 22:04:57 -0700
years will use a similar pattern.
A new Zone Pacific/Bougainville, for the part of Papua New Guinea
- that plans to switch from UTC+10 to UTC+11 on 2014-12-28 at 02:00.
+ that plans to switch from +10 to +11 on 2014-12-28 at 02:00.
(Thanks to Kiley Walbom for the heads-up.)
Changes affecting time zone abbreviations
@@ -679,8 +679,8 @@ Release 2014i - 2014-10-21 22:04:57 -0700
to its more-traditional value MSK on 2014-10-26 at 01:00.
(Thanks to Alexander Bokovoy for the heads-up about Belarus.)
- The new abbreviation IDT stands for the pre-1976 use of UT+8 in
- Indochina, to distinguish it better from ICT (UT+7).
+ The new abbreviation IDT stands for the pre-1976 use of +08 in
+ Indochina, to distinguish it better from ICT (+07).
Changes affecting past time stamps
@@ -791,7 +791,7 @@ Release 2014g - 2014-08-28 12:31:23 -0700
Changes affecting future time stamps
- Turks & Caicos is switching from US eastern time to UTC-4 year-round,
+ Turks & Caicos is switching from US eastern time to -04 year-round,
modeled as a switch from EST/EDT to AST on 2014-11-02 at 02:00.
[As noted in 2014j, this switch was later delayed.]
@@ -975,7 +975,7 @@ Release 2014f - 2014-08-05 17:42:36 -0700
This change does not affect UTC offsets, only time zone abbreviations.
(Thanks to Rich Tibbett and many others.)
- Asia/Novokuznetsk shifts from NOVT to KRAT (remaining on UTC+7)
+ Asia/Novokuznetsk shifts from NOVT to KRAT (remaining on +07)
effective 2014-10-26 at 02:00 local time.
The time zone abbreviation for Xinjiang Time (observed in Ürümqi)
@@ -1004,8 +1004,8 @@ Release 2014f - 2014-08-05 17:42:36 -0700
zones Asia/Harbin, Asia/Chongqing, and Asia/Kashgar have been
removed; backwards-compatibility links still work, albeit with
different behaviors for time stamps before May 1980. Asia/Urumqi's
- 1980 transition to UTC+8 has been removed, so that it is now at
- UTC+6 and not UTC+8. (Thanks to Luther Ma and to Alois Treindl;
+ 1980 transition to +08 has been removed, so that it is now at
+ +06 and not +08. (Thanks to Luther Ma and to Alois Treindl;
Treindl sent helpful translations of two papers by Guo Qingsheng.)
Some zones have been turned into links, when they differed from existing
@@ -1035,7 +1035,7 @@ Release 2014f - 2014-08-05 17:42:36 -0700
Europe/Helsinki's 1942 fall-back transition was 10-04 at 01:00, not
10-03 at 00:00. (Thanks to Konstantin Hyppönen.)
- Pacific/Pago_Pago has been changed from UTC-11:30 to UTC-11 for the period
+ Pacific/Pago_Pago has been changed from -11:30 to -11 for the period
from 1911 to 1950.
Pacific/Chatham has been changed to New Zealand standard time plus
@@ -1363,15 +1363,15 @@ Release 2013h - 2013-10-25 15:32:32 -0700
Changes affecting current and future time stamps:
- Libya has switched its time zone back to UTC+2 without DST,
- instead of UTC+1 with DST. (Thanks to Even Scharning.)
+ Libya has switched its time zone back to +02 without DST,
+ instead of +01 with DST. (Thanks to Even Scharning.)
Western Sahara (Africa/El_Aaiun) uses Morocco's DST rules.
(Thanks to Gwillim Law.)
Changes affecting future time stamps:
- Acre and (we guess) western Amazonas will switch from UTC-4 to UTC-5
+ Acre and (we guess) western Amazonas will switch from -04 to -05
on 2013-11-10. This affects America/Rio_Branco and America/Eirunepe.
(Thanks to Steffen Thorsen.)
@@ -1458,7 +1458,7 @@ Release 2013f - 2013-09-24 23:37:36 -0700
Tocantins will very likely not observe DST starting this spring.
(Thanks to Steffen Thorsen.)
- Jordan will likely stay at UTC+3 indefinitely, and will not fall
+ Jordan will likely stay at +03 indefinitely, and will not fall
back this fall.
Palestine will fall back at 00:00, not 01:00. (Thanks to Steffen Thorsen.)
@@ -1515,7 +1515,7 @@ Release 2013e - 2013-09-19 23:50:04 -0700
Benny Lin.) This affects Asia/Dili, Asia/Jakarta, Asia/Jayapura,
Asia/Makassar, and Asia/Pontianak.
- Use ART (UTC-3, standard time), rather than WARST (also UTC-3, but
+ Use ART (-03, standard time), rather than WARST (also UTC-3, but
daylight saving time) for San Luis, Argentina since 2009.
Changes affecting Godthåb time stamps after 2037 if version mismatch
@@ -1972,7 +1972,7 @@ Release 2012f - 2012-09-12 23:17:03 -0700
Release 2012e - 2012-08-02 20:44:55 -0700
- * australasia (Pacific/Fakaofo): Tokelau is UTC+13, not UTC+14.
+ * australasia (Pacific/Fakaofo): Tokelau is +13, not +14.
(Thanks to Steffen Thorsen.)
* Use a single version number for both code and data.
diff --git a/Theory b/Theory
index 60678fe..d8d3882 100644
--- a/Theory
+++ b/Theory
@@ -323,7 +323,7 @@ Errors in the tz database arise from many sources:
* Sometimes historical timekeeping was specified more precisely
than what the tz database can handle. For example, from 1909 to
- 1937 Netherlands clocks were legally UT+00:19:32.13, but the tz
+ 1937 Netherlands clocks were legally +00:19:32.13, but the tz
database cannot represent the fractional second.
* Even when all the timestamp transitions recorded by the tz database
diff --git a/africa b/africa
index 50f29d5..43c8e23 100644
--- a/africa
+++ b/africa
@@ -464,7 +464,7 @@ Zone Africa/Monrovia -0:43:08 - LMT 1882
# http://www.libyaherald.com/2013/10/24/correction-no-time-change-tomorrow/
#
# From Paul Eggert (2013-10-25):
-# For now, assume they're reverting to the pre-2012 rules of permanent UTC+2.
+# For now, assume they're reverting to the pre-2012 rules of permanent +02.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Libya 1951 only - Oct 14 2:00 1:00 S
diff --git a/asia b/asia
index ee2c436..a935476 100644
--- a/asia
+++ b/asia
@@ -380,7 +380,7 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
# Lewiston (ME) Daily Sun (1939-05-29), p 17, said "Even the time is
# different - the occupied districts going by Tokyo time, an hour
# ahead of that prevailing in the rest of Shanghai." Guess that the
-# Xujiahui Observatory was under French control and stuck with UT+8.
+# Xujiahui Observatory was under French control and stuck with +08.
#
# In earlier versions of this file, China had many separate Zone entries, but
# this was based on what were apparently incorrect data in Shanks & Pottenger.
@@ -389,26 +389,26 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
# Proposed in 1918 and theoretically in effect until 1949 (although in practice
# mainly observed in coastal areas), the five zones were:
#
-# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) UT+8.5
+# Changbai Time ("Long-white Time", Long-white = Heilongjiang area) +08:30
# Asia/Harbin (currently a link to Asia/Shanghai)
# Heilongjiang (except Mohe county), Jilin
#
-# Zhongyuan Time ("Central plain Time") UT+8
+# Zhongyuan Time ("Central plain Time") -08
# Asia/Shanghai
# most of China
# This currently represents most other zones as well,
# as apparently these regions have been the same since 1970.
# Milne gives 8:05:43.2 for Xujiahui Observatory time; round to nearest.
-# Guo says Shanghai switched to UT+8 "from the end of the 19th century".
+# Guo says Shanghai switched to +08 "from the end of the 19th century".
#
-# Long-shu Time (probably due to Long and Shu being two names of that area) UT+7
+# Long-shu Time (probably due to Long and Shu being two names of that area) +07
# Asia/Chongqing (currently a link to Asia/Shanghai)
# Guangxi, Guizhou, Hainan, Ningxia, Sichuan, Shaanxi, and Yunnan;
# most of Gansu; west Inner Mongolia; west Qinghai; and the Guangdong
# counties Deqing, Enping, Kaiping, Luoding, Taishan, Xinxing,
# Yangchun, Yangjiang, Yu'nan, and Yunfu.
#
-# Xin-zang Time ("Xinjiang-Tibet Time") UT+6
+# Xin-zang Time ("Xinjiang-Tibet Time") +06
# Asia/Urumqi
# This currently represents Kunlun Time as well,
# as apparently the two regions have been the same since 1970.
@@ -421,7 +421,7 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
# Shihezi, Changji, Yanqi, Heshuo, Tuokexun, Tulufan, Shanshan, Hami,
# Fukang, Kuitun, Kumukuli, Miquan, Qitai, and Turfan.
#
-# Kunlun Time UT+5.5
+# Kunlun Time +05:30
# Asia/Kashgar (currently a link to Asia/Urumqi)
# West Tibet, including Pulan, Aheqi, Shufu, Shule;
# West Xinjiang, including Aksu, Atushi, Yining, Hetian, Cele, Luopu, Nileke,
@@ -493,7 +493,7 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
# having the same time as Beijing.
# From Paul Eggert (2014-06-30):
-# In the early days of the PRC, Tibet was given its own time zone (UT+6) but
+# In the early days of the PRC, Tibet was given its own time zone (+06) but
# this was withdrawn in 1959 and never reinstated; see Tubten Khétsun,
# Memories of life in Lhasa under Chinese Rule, Columbia U Press, ISBN
# 978-0231142861 (2008), translator's introduction by Matthew Akester, p x.
@@ -508,12 +508,12 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D
# Republics, the Soviet Union, the Kuomintang, and the People's Republic of
# China, and tracking down all these organizations' timekeeping rules would be
# quite a trick. Approximate this lost history by a transition from LMT to
-# XJT at the start of 1928, the year of accession of the warlord Jin Shuren,
+# +06 at the start of 1928, the year of accession of the warlord Jin Shuren,
# which happens to be the date given by Shanks & Pottenger (no doubt as a
-# guess) as the transition from LMT. Ignore the usage of UT+8 before
-# 1986-02-01 under the theory that the transition date to UT+8 is unknown and
+# guess) as the transition from LMT. Ignore the usage of +08 before
+# 1986-02-01 under the theory that the transition date to +08 is unknown and
# that the sort of users who prefer Asia/Urumqi now typically ignored the
-# UT+8 mandate back then.
+# +08 mandate back then.
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
# Beijing time, used throughout China; represented by Shanghai.
@@ -718,7 +718,7 @@ Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30
# be found from historical government announcement database.
# From Paul Eggert (2014-07-03):
-# As per Yu-Cheng Chuang, say that Taiwan was at UT+9 from 1937-10-01
+# As per Yu-Cheng Chuang, say that Taiwan was at +09 from 1937-10-01
# until 1945-09-21 at 01:00, overriding Shanks & Pottenger.
# Likewise, use Yu-Cheng Chuang's data for DST in Taiwan.
@@ -917,7 +917,7 @@ Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata
# These would be the earliest possible times for a change.
# Régimes horaires pour le monde entier, by Henri Le Corre, (Éditions
# Traditionnelles, 1987, Paris) says that Java and Madura switched
-# from JST to UTC+07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura
+# from +09 to +07:30 on 1945-09-23, and gives 1944-09-01 for Jayapura
# (Hollandia). For now, assume all Indonesian locations other than Jayapura
# switched on 1945-09-23.
#
@@ -930,9 +930,9 @@ Zone Asia/Kolkata 5:53:28 - LMT 1880 # Kolkata
# Indonesia, <http://time.kim.lipi.go.id/time-eng.php> (2006-09-29).
# The abbreviations are:
#
-# WIB - UTC+7 - Waktu Indonesia Barat (Indonesia western time)
-# WITA - UTC+8 - Waktu Indonesia Tengah (Indonesia central time)
-# WIT - UTC+9 - Waktu Indonesia Timur (Indonesia eastern time)
+# WIB - +07 - Waktu Indonesia Barat (Indonesia western time)
+# WITA - +08 - Waktu Indonesia Tengah (Indonesia central time)
+# WIT - +09 - Waktu Indonesia Timur (Indonesia eastern time)
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
# Java, Sumatra
@@ -1864,25 +1864,24 @@ 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):
+# From Paul Eggert (2016-08-23):
# The Korean Wikipedia entry gives the following sources for UT offsets:
#
-# 1908: Official Journal Article No. 3994 (Edict No. 5)
+# 1908: Official Journal Article No. 3994 (decree 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.
+# (Another source "1987: Law No. 3919 (1986-12-31)" was in the 2014-10-30
+# edition of the Korean Wikipedia entry.)
#
# 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.
+# For Pyongyang, guess no changes from World War II until 2015, as we
+# have no information otherwise.
# From Steffen Thorsen (2015-08-07):
# According to many news sources, North Korea is going to change to
@@ -2042,7 +2041,7 @@ Zone Indian/Maldives 4:54:00 - LMT 1880 # Male
# Bill Bonnet (2005-05-19) reports that the US Embassy in Ulaanbaatar says
# there is only one time zone and that DST is observed, citing Microsoft
# Windows XP as the source. Risto Nykänen (2005-05-16) reports that
-# travelmongolia.org says there are two time zones (UTC+7, UTC+8) with no DST.
+# travelmongolia.org says there are two time zones (+07, +08) with no DST.
# Oscar van Vlijmen (2005-05-20) reports that the Mongolian Embassy in
# Washington, DC says there are two time zones, with DST observed.
# He also found
@@ -2678,7 +2677,7 @@ Link Asia/Qatar Asia/Bahrain
# earlier date.
#
# Shanks & Pottenger also state that until 1968-05-01 Saudi Arabia had two
-# time zones; the other zone, at UTC+4, was in the far eastern part of
+# time zones; the other zone, at +04, was in the far eastern part of
# the country. Ignore this, as it's before our 1970 cutoff.
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
diff --git a/australasia b/australasia
index 0b33f67..fe77d07 100644
--- a/australasia
+++ b/australasia
@@ -545,7 +545,7 @@ Zone Pacific/Port_Moresby 9:48:40 - LMT 1880
# Base the Bougainville entry on the Arawa-Kieta region, which appears to have
# the most people even though it was devastated in the Bougainville Civil War.
#
-# Although Shanks gives 1942-03-15 / 1943-11-01 for JST, these dates
+# Although Shanks gives 1942-03-15 / 1943-11-01 for +09, these dates
# are apparently rough guesswork from the starts of military campaigns.
# The World War II entries below are instead based on Arawa-Kieta.
# The Japanese occupied Kieta in July 1942,
@@ -553,8 +553,8 @@ Zone Pacific/Port_Moresby 9:48:40 - LMT 1880
# http://pwencycl.kgbudge.com/B/o/Bougainville.htm
# and seem to have controlled it until their 1945-08-21 surrender.
#
-# The Autonomous Region of Bougainville plans to switch from UTC+10 to UTC+11
-# on 2014-12-28 at 02:00. They call UTC+11 "Bougainville Standard Time";
+# The Autonomous Region of Bougainville switched from +10 to +11
+# on 2014-12-28 at 02:00. They call +11 "Bougainville Standard Time";
# abbreviate this as BST. See:
# http://www.bougainville24.com/bougainville-issues/bougainville-gets-own-timezone/
#
@@ -620,7 +620,7 @@ Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands
# From Paul Eggert (2014-06-27):
# The International Date Line Act 2011
# http://www.parliament.gov.ws/images/ACTS/International_Date_Line_Act__2011_-_Eng.pdf
-# changed Samoa from UTC-11 to UTC+13, effective "12 o'clock midnight, on
+# changed Samoa from -11 to +13, effective "12 o'clock midnight, on
# Thursday 29th December 2011". The International Date Line was adjusted
# accordingly.
@@ -715,7 +715,7 @@ Zone Pacific/Funafuti 11:56:52 - LMT 1901
# 1886-1891; Baker was similar but exact dates are not known.
# Inhabited by civilians 1935-1942; U.S. military bases 1943-1944;
# uninhabited thereafter.
-# Howland observed Hawaii Standard Time (UT-10:30) in 1937;
+# Howland observed Hawaii Standard Time (-10:30) in 1937;
# see page 206 of Elgen M. Long and Marie K. Long,
# Amelia Earhart: the Mystery Solved, Simon & Schuster (2000).
# So most likely Howland and Baker observed Hawaii Time from 1935
@@ -1473,7 +1473,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# Zealand time. I understand that is the time they keep locally, anyhow."
# For now, assume this practice goes back to the introduction of standard time
# in New Zealand, as this would make Chatham Islands time almost exactly match
-# LMT back when New Zealand was at UTC+11:30; also, assume Chatham Islands did
+# LMT back when New Zealand was at +11:30; also, assume Chatham Islands did
# not observe New Zealand's prewar DST.
###############################################################################
@@ -1529,7 +1529,7 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# For now, we assume the Ladrones switched at the same time as the Philippines;
# see Asia/Manila.
-# US Public Law 106-564 (2000-12-23) made UTC+10 the official standard time,
+# US Public Law 106-564 (2000-12-23) made +10 the official standard time,
# under the name "Chamorro Standard Time". There is no official abbreviation,
# but Congressman Robert A. Underwood, author of the bill that became law,
# wrote in a press release (2000-12-27) that he will seek the use of "ChST".
@@ -1541,15 +1541,15 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# "I am certain, having lived there for the past decade, that 'Truk'
# (now properly known as Chuuk) ... is in the time zone GMT+10."
#
-# Shanks & Pottenger write that Truk switched from UTC+10 to UTC+11
+# Shanks & Pottenger write that Truk switched from +10 to +11
# on 1978-10-01; ignore this for now.
# From Paul Eggert (1999-10-29):
# The Federated States of Micronesia Visitors Board writes in
# The Federated States of Micronesia - Visitor Information (1999-01-26)
# http://www.fsmgov.org/info/clocks.html
-# that Truk and Yap are UTC+10, and Ponape and Kosrae are UTC+11.
-# We don't know when Kosrae switched from UTC+12; assume January 1 for now.
+# that Truk and Yap are +10, and Ponape and Kosrae are +11.
+# We don't know when Kosrae switched from +12; assume January 1 for now.
# Midway
@@ -1615,11 +1615,11 @@ Zone Pacific/Wallis 12:15:20 - LMT 1901
# ordaining - by a masterpiece of diplomatic flattery - that
# the Fourth of July should be celebrated twice in that year."
-# Although Shanks & Pottenger says they both switched to UTC-11:30
-# in 1911, and to UTC-11 in 1950. many earlier sources give UTC-11
+# Although Shanks & Pottenger says they both switched to -11:30
+# in 1911, and to -11 in 1950. many earlier sources give -11
# for American Samoa, e.g., the US National Bureau of Standards
# circular "Standard Time Throughout the World", 1932.
-# Assume American Samoa switched to UTC-11 in 1911, not 1950,
+# Assume American Samoa switched to -11 in 1911, not 1950,
# and that after 1950 they agreed until (western) Samoa skipped a
# day in 2011. Assume also that the Samoas follow the US and New
# Zealand's "ST"/"DT" style of daylight-saving abbreviations.
diff --git a/backzone b/backzone
index 13dc8d4..27a5472 100644
--- a/backzone
+++ b/backzone
@@ -194,9 +194,9 @@ Zone Africa/Lusaka 1:53:08 - LMT 1903 Mar
# Equatorial Guinea
#
-# Although Shanks says that Malabo switched from UTC to UTC+1 on 1963-12-15,
+# Although Shanks says that Malabo switched from +00 to +01 on 1963-12-15,
# a Google Books search says that London Calling, Issues 432-465 (1948), p 19,
-# says that Spanish Guinea was at GMT+1 back then. The Shanks data entries
+# says that Spanish Guinea was at +01 back then. The Shanks data entries
# are most likely wrong, but we have nothing better; use them here for now.
#
Zone Africa/Malabo 0:35:08 - LMT 1912
@@ -479,14 +479,14 @@ Zone Asia/Muscat 3:54:24 - LMT 1920
# From Paul Eggert (2014-08-11), after a heads-up from Stephen Colebourne:
# According to a Portuguese decree (1911-05-26)
# http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf
-# Portuguese India switched to GMT+5 on 1912-01-01.
+# Portuguese India switched to +05 on 1912-01-01.
#Zone Asia/Panaji [not enough info to complete]
# Cambodia
# From Paul Eggert (2014-10-11):
# See Asia/Ho_Chi_Minh for the source for most of this data. Also, guess
-# (1) Cambodia reverted to UT+7 on 1945-09-02, when Vietnam did, and
-# (2) they also reverted to UT+7 on 1953-11-09, the date of independence.
+# (1) Cambodia reverted to +07 on 1945-09-02, when Vietnam did, and
+# (2) they also reverted to +07 on 1953-11-09, the date of independence.
# These guesses are probably wrong but they're better than guessing no
# transitions there.
Zone Asia/Phnom_Penh 6:59:40 - LMT 1906 Jul 1
@@ -506,8 +506,8 @@ Zone Asia/Tel_Aviv 2:19:04 - LMT 1880
# Laos
# From Paul Eggert (2014-10-11):
# See Asia/Ho_Chi_Minh for the source for most of this data.
-# Trần's book says that Laos reverted to UT+7 on 1955-04-15.
-# Also, guess that Laos reverted to UT+7 on 1945-09-02, when Vietnam did;
+# Trần's book says that Laos reverted to +07 on 1955-04-15.
+# Also, guess that Laos reverted to +07 on 1945-09-02, when Vietnam did;
# this is probably wrong but it's better than guessing no transition.
Zone Asia/Vientiane 6:50:24 - LMT 1906 Jul 1
7:06:30 - PLMT 1911 May 1
diff --git a/europe b/europe
index b02edbd..4219828 100644
--- a/europe
+++ b/europe
@@ -774,8 +774,6 @@ Zone Europe/Vienna 1:05:21 - LMT 1893 Apr
# From Alexander Bokovoy (2014-10-09):
# Belarussian government decided against changing to winter time....
# http://eng.belta.by/all_news/society/Belarus-decides-against-adjusting-time-in-Russias-wake_i_76335.html
-# From Paul Eggert (2014-10-08):
-# Hence Belarus can share time zone abbreviations with Moscow again.
#
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Europe/Minsk 1:50:16 - LMT 1880
@@ -1294,7 +1292,7 @@ Zone Europe/Paris 0:09:21 - LMT 1891 Mar 15 0:01
# http://www.parlament-berlin.de/pds-fraktion.nsf/727459127c8b66ee8525662300459099/defc77cb784f180ac1256c2b0030274b/$FILE/bersarint.pdf
# says that Bersarin issued an order to use Moscow time on May 20.
# However, Moscow did not observe daylight saving in 1945, so
-# this was equivalent to CEMT (GMT+3), not GMT+4.
+# this was equivalent to +03, not +04.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
@@ -2258,7 +2256,6 @@ Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct
# http://www.worldtimezone.com/dst_news/dst_news_russia-map-2014-07.html
# From Paul Eggert (2006-03-22):
-# Except for Moscow after 1919-07-01, I invented the time zone abbreviations.
# Moscow time zone abbreviations after 1919-07-01, and Moscow rules after 1991,
# are from Andrey A. Chernov. The rest is from Shanks & Pottenger,
# except we follow Chernov's report that 1992 DST transitions were Sat
@@ -3080,9 +3077,6 @@ Zone Asia/Magadan 10:03:12 - LMT 1924 May 2
# in Russian.) In addition, Srednekolymsk appears to be a much older
# settlement and the population of Zyryanka seems to be declining.
# Go with Srednekolymsk.
-#
-# Since Magadan Oblast moves to UTC+10 on 2014-10-26, we cannot keep using MAGT
-# as the abbreviation. Use SRET instead.
Zone Asia/Srednekolymsk 10:14:52 - LMT 1924 May 2
10:00 - +10 1930 Jun 21
diff --git a/localtime.c b/localtime.c
index 276ce34..6c00c45 100644
--- a/localtime.c
+++ b/localtime.c
@@ -1510,7 +1510,7 @@ gmtsub(struct state const *sp, time_t const *timep, int_fast32_t offset,
#ifdef TM_ZONE
/*
** Could get fancy here and deliver something such as
- ** "UT+xxxx" or "UT-xxxx" if offset is non-zero,
+ ** "+xx" or "-xx" if offset is non-zero,
** but this is no time for a treasure hunt.
*/
tmp->TM_ZONE = ((char *)
diff --git a/northamerica b/northamerica
index d66135e..0c069bb 100644
--- a/northamerica
+++ b/northamerica
@@ -3312,7 +3312,7 @@ Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre
# indicating that the normal ET rules are followed.
#
# From Paul Eggert (2014-08-19):
-# The 2014-08-13 Cabinet meeting decided to stay on UTC-4 year-round. See:
+# The 2014-08-13 Cabinet meeting decided to stay on -04 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 ...
# From Chris Walton (2014-11-04):
diff --git a/private.h b/private.h
index 941e91b..3583079 100644
--- a/private.h
+++ b/private.h
@@ -15,6 +15,7 @@
** Thank you!
*/
+/* This string was in the tzdata Factory zone through version 2016f. */
#define GRANDPARENTED "Local time zone must be set--see zic manual page"
/*
diff --git a/southamerica b/southamerica
index 1c38f63..5321451 100644
--- a/southamerica
+++ b/southamerica
@@ -410,9 +410,9 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S
# stuck on Summer daylight savings time even though the summer is over.
# From Paul Eggert (2013-09-05):
-# Perhaps San Luis operates on the legal fiction that it is at UTC-4
+# Perhaps San Luis operates on the legal fiction that it is at -04
# with perpetual summer time, but ordinary usage typically seems to
-# just say it's at UTC-3; see, for example,
+# just say it's at -03; see, for example,
# http://es.wikipedia.org/wiki/Hora_oficial_argentina
# We've documented similar situations as being plain changes to
# standard time, so let's do that here too. This does not change UTC
--
2.5.5
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