[tz] [PROPOSED PATCH 2/4] Phase out invented abbrs for Antarctica

Paul Eggert eggert at cs.ucla.edu
Tue Aug 23 23:55:43 UTC 2016


* NEWS: Document this.
* antarctica (Antarctica/Casey, Antarctica/Davis, Antarctica/Mawson):
(Indian/Kerguelen, Antarctica/DumontDUrville, Antarctica/Syowa)
(Troll, Antarctica/Vostok, Antarctica/Rothera):
Prefer numeric to invented time zone abbreviations.
---
 NEWS       | 15 +++++++++------
 antarctica | 55 ++++++++++++++++++++++++++-----------------------------
 2 files changed, 35 insertions(+), 35 deletions(-)

diff --git a/NEWS b/NEWS
index b0da284..d88d2bb 100644
--- a/NEWS
+++ b/NEWS
@@ -15,17 +15,20 @@ Unreleased, experimental changes
 
   Changes to past and future time zone abbreviations
 
-    Several zones in the former Soviet Union now use numeric time zone
-    abbreviations instead of invented ones.  The affected zones are
+    Several zones in Antarctica and the former Soviet Union now use
+    numeric time zone abbreviations instead of invented ones.  The
+    affected zones are Antarctica/Casey, Antarctica/Davis,
+    Antarctica/DumontDUrville, Antarctica/Mawson, Antarctica/Rothera,
+    Antarctica/Syowa, Antarctica/Troll, Antarctica/Vostok,
     Asia/Anadyr, Asia/Ashgabat, Asia/Baku, Asia/Bishkek, Asia/Chita,
     Asia/Dushanbe, Asia/Irkutsk, Asia/Kamchatka, Asia/Khandyga,
     Asia/Krasnoyarsk, Asia/Magadan, Asia/Omsk, Asia/Sakhalin,
     Asia/Samarkand, Asia/Srednekolymsk, Asia/Tashkent, Asia/Tbilisi,
     Asia/Ust-Nera, Asia/Vladivostok, Asia/Yakutsk, Asia/Yekaterinburg,
-    Asia/Yerevan, Europe/Kaliningrad, Europe/Minsk, Europe/Samara, and
-    Europe/Volgograd.  For Europe/Moscow the invented abbreviation MSM
-    was replaced by +05, whereas MSK and MSD were kept as they are not
-    our invention and are widely used.
+    Asia/Yerevan, Europe/Kaliningrad, Europe/Minsk, Europe/Samara,
+    Europe/Volgograd, and Indian/Kerguelen.  For Europe/Moscow the
+    invented abbreviation MSM was replaced by +05, whereas MSK and MSD
+    were kept as they are not our invention and are widely used.
 
   Changes to code
 
diff --git a/antarctica b/antarctica
index a537832..f8b4bfb 100644
--- a/antarctica
+++ b/antarctica
@@ -10,9 +10,7 @@
 # http://www.spri.cam.ac.uk/bob/periant.htm
 # for information.
 # Unless otherwise specified, we have no time zone information.
-#
-# Except for the French entries,
-# I made up all time zone abbreviations mentioned here; corrections welcome!
+
 # FORMAT is '-00' and GMTOFF is 0 for locations while uninhabited.
 
 # Argentina - year-round bases
@@ -68,23 +66,22 @@
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Antarctica/Casey	0	-	-00	1969
-			8:00	-	AWST	2009 Oct 18  2:00
-						# Australian Western Std Time
-			11:00	-	CAST	2010 Mar  5  2:00  # Casey Time
-			8:00	-	AWST	2011 Oct 28  2:00
-			11:00	-	CAST	2012 Feb 21 17:00u
-			8:00	-	AWST
+			8:00	-	+08	2009 Oct 18  2:00
+			11:00	-	+11	2010 Mar  5  2:00
+			8:00	-	+08	2011 Oct 28  2:00
+			11:00	-	+11	2012 Feb 21 17:00u
+			8:00	-	+08
 Zone Antarctica/Davis	0	-	-00	1957 Jan 13
-			7:00	-	DAVT	1964 Nov    # Davis Time
+			7:00	-	+07	1964 Nov
 			0	-	-00	1969 Feb
-			7:00	-	DAVT	2009 Oct 18  2:00
-			5:00	-	DAVT	2010 Mar 10 20:00u
-			7:00	-	DAVT	2011 Oct 28  2:00
-			5:00	-	DAVT	2012 Feb 21 20:00u
-			7:00	-	DAVT
+			7:00	-	+07	2009 Oct 18  2:00
+			5:00	-	+05	2010 Mar 10 20:00u
+			7:00	-	+07	2011 Oct 28  2:00
+			5:00	-	+05	2012 Feb 21 20:00u
+			7:00	-	+07
 Zone Antarctica/Mawson	0	-	-00	1954 Feb 13
-			6:00	-	MAWT	2009 Oct 18  2:00 # Mawson Time
-			5:00	-	MAWT
+			6:00	-	+06	2009 Oct 18  2:00
+			5:00	-	+05
 # References:
 # Casey Weather (1998-02-26)
 # http://www.antdiv.gov.au/aad/exop/sfo/casey/casey_aws.html
@@ -138,7 +135,7 @@ Zone Antarctica/Mawson	0	-	-00	1954 Feb 13
 #
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Indian/Kerguelen	0	-	-00	1950 # Port-aux-Français
-			5:00	-	TFT	# ISO code TF Time
+			5:00	-	+05
 #
 # year-round base in the main continent
 # Dumont d'Urville, Île des Pétrels, -6640+14001, since 1956-11
@@ -149,9 +146,9 @@ Zone Indian/Kerguelen	0	-	-00	1950 # Port-aux-Français
 #
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Antarctica/DumontDUrville 0 -	-00	1947
-			10:00	-	PMT	1952 Jan 14 # Port-Martin Time
+			10:00	-	+10	1952 Jan 14
 			0	-	-00	1956 Nov
-			10:00	-	DDUT	# Dumont-d'Urville Time
+			10:00	-	+10
 
 # France & Italy - year-round base
 # Concordia, -750600+1232000, since 2005
@@ -177,7 +174,7 @@ Zone Antarctica/DumontDUrville 0 -	-00	1947
 # station of Japan, it's appropriate for the principal location.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Antarctica/Syowa	0	-	-00	1957 Jan 29
-			3:00	-	SYOT	# Syowa Time
+			3:00	-	+03
 # See:
 # NIPR Antarctic Research Activities (1999-08-17)
 # http://www.nipr.ac.jp/english/ara01.html
@@ -219,12 +216,12 @@ Zone Antarctica/Syowa	0	-	-00	1957 Jan 29
 # with only UTC and CEST.  Uncomment them when 2014b is more prevalent.
 #
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
-#Rule	Troll	2005	max	-	Mar	 1	1:00u	1:00	CET
-Rule	Troll	2005	max	-	Mar	lastSun	1:00u	2:00	CEST
-#Rule	Troll	2005	max	-	Oct	lastSun	1:00u	1:00	CET
-#Rule	Troll	2004	max	-	Nov	 7	1:00u	0:00	UTC
+#Rule	Troll	2005	max	-	Mar	 1	1:00u	1:00	+01
+Rule	Troll	2005	max	-	Mar	lastSun	1:00u	2:00	+02
+#Rule	Troll	2005	max	-	Oct	lastSun	1:00u	1:00	+01
+#Rule	Troll	2004	max	-	Nov	 7	1:00u	0:00	+00
 # Remove the following line when uncommenting the above '#Rule' lines.
-Rule	Troll	2004	max	-	Oct	lastSun	1:00u	0:00	UTC
+Rule	Troll	2004	max	-	Oct	lastSun	1:00u	0:00	+00
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Antarctica/Troll	0	-	-00	2005 Feb 12
 			0:00	Troll	%s
@@ -265,10 +262,10 @@ Zone Antarctica/Troll	0	-	-00	2005 Feb 12
 # changes during the year and does not necessarily correspond to mean
 # solar noon.  So the Vostok time might have been whatever the clocks
 # happened to be during their visit.  So we still don't really know what time
-# it is at Vostok.  But we'll guess UTC+6.
+# it is at Vostok.  But we'll guess +06.
 #
 Zone Antarctica/Vostok	0	-	-00	1957 Dec 16
-			6:00	-	VOST	# Vostok time
+			6:00	-	+06
 
 # S Africa - year-round bases
 # Marion Island, -4653+03752
@@ -301,7 +298,7 @@ Zone Antarctica/Vostok	0	-	-00	1957 Dec 16
 #
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone Antarctica/Rothera	0	-	-00	1976 Dec  1
-			-3:00	-	ROTT	# Rothera time
+			-3:00	-	-03
 
 # Uruguay - year round base
 # Artigas, King George Island, -621104-0585107
-- 
2.5.5



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