proposed patch to tz for Nunavut, Palestine, Bulgaria, etc.
Paul Eggert
eggert at twinsun.com
Tue Sep 21 06:53:30 UTC 1999
Here are some proposed patches that are in addition to the patch
circulated earlier today by Arthur David Olson.
* Lots of changes for Nunavut, brought to my attention by Antoine Leca
and Rives McDow (though I made several further changes).
- Pangnirtung is now on Eastern Time. I wildly guessed a switch in 1995.
- Nunavut converts to Central Time on October 31. This entails a new Zone,
America/Cambridge_Bay.
- I found a claim that Coral Harbour, Nunavut, does not observe DST,
but I vaguely recall that Canadian law does not permit this, so
for now I left that as a comment only.
* Palestine no longer uses the same DST rules as Jordan (if it ever did).
Add a separate rule set for Palestine, with my best current guess
for what this year's rules are.
* Revert to the abbreviation `EEST' during summer in Bulgaria. I
think the Bulgarian document (or translator) was mistaken when it
had `EETDST'.
* Add commentary from Joseph S. Myers about `BDST', and about Channel
Islands summer time during World War I.
* Clarify which states are affected by recent decrees in Brazil.
* Shorten the comments about Jordan.
* Modify tzselect.ksh so that it explains its output better to the casual
user.
diff -pu tz-1999ee-patch/asia tz/asia
--- tz-1999ee-patch/asia Mon Sep 20 16:15:18 1999
+++ tz/asia Mon Sep 20 22:57:37 1999
@@ -648,28 +648,14 @@ Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 3
# Since 1938, all Japanese possessions have been like Asia/Tokyo.
# Jordan
-# From Steffen Thorsen [straen at thorsen.priv.no] (1999-05-08):
-# Jordan do not have DST this year. It also seems that they are not going
-# to use it the next years either. "We do not need it" was the answer I got
-# from the Jordan National Information Centre (http://www.nic.gov.jo).
-#
-# From Steffen Thorsen [straen at thorsen.priv.no] (1999-09-09):
-# In April I reported that Jordan had stopped using DST. Now the government
-# will use DST all year long, as reported in this Jordanian newspaper:
+#
+# From
# <a href="http://star.arabia.com/990701/JO9.html">
-# http://star.arabia.com/990701/JO9.html
-# </a>
-#
-# "Summer time is back
-# Clocks in Jordan were forwarded one hour on Wednesday at midnight, in
-# accordance with the government's decision to implement summer time all
-# year round."
-#
-# It seems that DST was introduced on 30 June at 24:00 (or 1 July 00:00).
-# This link might also be of interest:
-# <a href="http://star.arabia.com/990624/JO2.html">
-# http://star.arabia.com/990624/JO2.html
-# </a>
+# Jordan Week (1999-07-01)
+# </a> via Steffen Thorsen (1999-09-09):
+# Clocks in Jordan were forwarded one hour on Wednesday at midnight,
+# in accordance with the government's decision to implement summer time
+# all year round.
#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Jordan 1973 only - Jun 6 0:00 1:00 S
@@ -953,7 +939,17 @@ Zone Asia/Karachi 4:28:12 - LMT 1907
# one-hour forward at this time. As a sign of independence from Israeli rule,
# the PA has decided to implement DST in April.
-# These rules for Egypt are stolen from the `africa' file.
+# From Paul Eggert (1999-09-20):
+# Daoud Kuttab writes in
+# <a href="http://www.jpost.com/com/Archive/22.Apr.1999/Opinion/Article-2.html">
+# Holiday havoc
+# </a> (Jerusalem Post, 1999-04-22) that
+# the Palestinian National Authority changed to DST on 1999-04-15.
+# I vaguely recall that they switch back in October (sorry, forgot the source).
+# For now, let's assume that the spring switch was at 24:00,
+# and that they switch at 0:00 on the 3rd Fridays of April and October.
+
+# The rules for Egypt are stolen from the `africa' file.
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule EgyptAsia 1957 only - May 10 0:00 1:00 S
Rule EgyptAsia 1957 1958 - Oct 1 0:00 0 -
@@ -961,12 +957,17 @@ Rule EgyptAsia 1958 only - May 1 0:00 1
Rule EgyptAsia 1959 1967 - May 1 1:00 1:00 S
Rule EgyptAsia 1959 1965 - Sep 30 3:00 0 -
Rule EgyptAsia 1966 only - Oct 1 3:00 0 -
+
+Rule Palestine 1999 max - Apr Fri>=15 0:00 1:00 S
+Rule Palestine 1999 max - Oct Fri>=15 0:00 0 -
+
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone Asia/Gaza 2:17:52 - LMT 1900 Oct
2:00 Zion EET 1948 May 15
2:00 EgyptAsia EE%sT 1967 Jun 5
2:00 Zion I%sT 1996
- 2:00 Jordan EE%sT
+ 2:00 Jordan EE%sT 1999
+ 2:00 Palestine EE%sT
# Paracel Is
# no information
diff -pu tz-1999ee-patch/europe tz/europe
--- tz-1999ee-patch/europe Mon Sep 20 16:16:24 1999
+++ tz/europe Mon Sep 20 22:57:37 1999
@@ -155,6 +155,11 @@
# time of sunrise and sunset in The Times, when BDST was in effect, and
# if you find a zone reference it will say, "All times B.D.S.T."
+# From Joseph S. Myers (1999-09-02):
+# ... some military cables (WO 219/4100 - this is a copy from the
+# main SHAEF archives held in the US National Archives, SHAEF/5252/8/516)
+# agree that the usage is BDST (this appears in a message dated 17 Feb 1945).
+
# Howse writes (p 157) `DBST'; let's assume this is a typo.
# From Peter Ilieve <peter at aldie.co.uk> (1998-04-19):
@@ -708,6 +713,17 @@
# Implements the eighth Directive. Has the same text about the Isle of Man,
# Guernsey and Jersey as the 1994 Order.
+# From Joseph S. Myers (1999-09-02):
+# I today found the 1916 summer time orders for the Channel Islands in
+# the Public Record Office (HO 45/10811/312364).... Alderney,
+# Jersey and Guernsey all enacted summer time for 1916 (and the
+# enactment for the Isle of Man is already noted). This doesn't
+# complete the resolution of timekeeping in the Channel Islands, since
+# 1917-1921 need to be resolved for the Channel Islands, and it isn't
+# clear whether the islands were using GMT or local time then. The
+# changes in Alderney and Guernsey were at the same 2am GMT time as
+# for Great Britain; the order for Jersey is more interesting.
+
# From Joseph S. Myers <jsm28 at hermes.cam.ac.uk> (1998-01-06):
#
# The legal time in the UK outside of summer time is definitely GMT, not UTC;
@@ -716,7 +732,7 @@
# (Lords Hansard 11 June 1997 columns 964 to 976)
# </a>.
-# From Paul Eggert <eggert at twinsun.com> (1996-06-12):
+# From Paul Eggert (1999-09-20):
#
# The date `20 April 1924' in the table of ``Summer Time: A
# Consultation Document'' (Cm 722, 1989) table is a transcription error;
@@ -740,11 +756,14 @@
# Actually, that date saw the usual switch to summer time.
# Standard time was not changed until 1968-10-27 (the clocks didn't change).
#
-# The following claims by Shanks are possible though doubtful;
-# we'll ignore them for now.
+# Here is another incorrect claim by Shanks:
# * Jersey, Guernsey, and the Isle of Man did not switch from GMT
# to daylight saving time until 1921 Apr 3, when they began to
# conform with Great Britain.
+# S.R.&O. 1916, No. 382 and HO 45/10811/312364 (quoted above) say otherwise.
+#
+# The following claim by Shanks is possible though doubtful;
+# we'll ignore it for now.
# * Dublin's 1971-10-31 switch was at 02:00, even though London's was 03:00.
#
#
@@ -1165,20 +1184,12 @@ Zone Europe/Brussels 0:17:30 - LMT 1880
# see Yugoslavia
# Bulgaria
-
-# From Steffen Thorsen [straen at thorsen.priv.no] (1999-09-09):
-# Sofia should probably use rule "EU" after 1997:
-#
-# Plamen Simenov <P.Simeonov at cnsys.bg> reports that DST transitions
-# are not at midnight, but a few hours later:
-#
+#
+# From Plamen Simenov <P.Simeonov at cnsys.bg> via Steffen Thorsen (1999-09-09):
# A document of Government of Bulgaria (No.94/1997) says:
-# EET --> EETDST is in 03:00 Local time in last Sunday of March
-# (new=local+1h)
+# EET --> EETDST is in 03:00 Local time in last Sunday of March ...
# EETDST --> EET is in 04:00 Local time in last Sunday of October
-# (new=local-1h)
-# (EETDST = EEST)
-
+#
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule Bulg 1979 only - Mar 31 23:00 1:00 S
Rule Bulg 1979 only - Oct 1 1:00 0 -
@@ -1194,7 +1205,7 @@ Zone Europe/Sofia 1:33:16 - LMT 1880
2:00 Bulg EE%sT 1982 Sep 26 2:00
2:00 C-Eur EE%sT 1991
2:00 E-Eur EE%sT 1997
- 2:00 EU EET/EETDST
+ 2:00 EU EE%sT
# Croatia
# see Yugosloavia
diff -pu tz-1999ee-patch/northamerica tz/northamerica
--- tz-1999ee-patch/northamerica Tue Aug 17 11:09:08 1999
+++ tz/northamerica Mon Sep 20 22:57:37 1999
@@ -889,6 +889,25 @@ Zone America/Dawson_Creek -8:00:56 - LMT
# * O.I.C. 1987/056 changed DST to Apr firstSun 2:00 to Oct lastSun 2:00.
# Shanks says Yukon's 1973-10-28 switch was at 2:00; go with Englander.
+# From Rives McDow (1999-09-04):
+# Nunavut ... moved ... to incorporate the whole territory into one time zone.
+# <a href="http://www.nunatsiaq.com/nunavut/nvt90903_13.html">
+# The change announcement
+# </a>
+#
+# From Antoine Leca (1999-09-06):
+# We then need to create a new timezone for the Kitikmeot region of Nunavut
+# to differentiate it from the Yellowknife region.
+
+# From Paul Eggert (1999-09-20):
+# <a href="http://www.nunavut.com/basicfacts/english/basicfacts_1territory.html">
+# Basic Facts: The New Territory
+# </a> (1999) reports that Pangnirtung operates on Eastern time,
+# and that Coral Harbour does not observe DST. We don't know when
+# Pangnirtung switched to Eastern time; we'll guess 1995.
+# We'll ignore the claim about Coral Harbour for now,
+# since we have no further info.
+
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule NT_YK 1918 only - Apr 14 2:00 1:00 D
Rule NT_YK 1918 only - Oct 27 2:00 0 S
@@ -903,11 +922,17 @@ Rule NT_YK 1980 max - Oct lastSun 2:00 0
Rule NT_YK 1987 max - Apr Sun>=1 2:00 1:00 D
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Pangnirtung -4:22:56 - LMT 1884
- -4:00 NT_YK A%sT
-Zone America/Iqaluit -4:33:52 - LMT 1884 # Frobisher Bay
- -5:00 NT_YK E%sT
+ -4:00 NT_YK A%sT 1995 Apr Sun>=1 2:00
+ -5:00 Canada E%sT 1999 Oct 31 2:00
+ -6:00 Canada C%sT
+Zone America/Iqaluit -4:33:52 - LMT 1884 # Frobisher Bay before 1987
+ -5:00 NT_YK E%sT 1999 Oct 31 2:00
+ -6:00 Canada C%sT
Zone America/Rankin_Inlet -6:08:40 - LMT 1884
-6:00 NT_YK C%sT
+Zone America/Cambridge_Bay -7:00:20 - LMT 1884
+ -7:00 NT_YK M%sT 1999 Oct 31 2:00
+ -6:00 Canada C%sT
Zone America/Yellowknife -7:37:24 - LMT 1884
-7:00 NT_YK M%sT
Zone America/Inuvik -8:54:00 - LMT 1884
diff -pu tz-1999ee-patch/southamerica tz/southamerica
--- tz-1999ee-patch/southamerica Mon Sep 20 16:16:57 1999
+++ tz/southamerica Mon Sep 20 22:57:37 1999
@@ -350,17 +350,18 @@ Rule Brazil 1997 only - Oct 6 0:00 1:0
# Decree <a href="http://pcdsh01.on.br/figuras/HV2495.JPG">2,495</a>
# (1998-02-10)
Rule Brazil 1998 only - Mar 1 0:00 0 -
-# Decree <a href="http://pcdsh01.on.br/figuras/Hv98.jpg">2,780</a> (1998-09-11).
-# specifies only the 1998-10-11 and 1999-02-21 transitions.
+# Decree <a href="http://pcdsh01.on.br/figuras/Hv98.jpg">2,780</a> (1998-09-11)
+# adopted by the same states as before.
Rule Brazil 1998 only - Oct 11 0:00 1:00 S
Rule Brazil 1999 only - Feb 21 0:00 0 -
# Decree <a href="http://pcdsh01.on.br/figuras/HV3150.gif">3,150</a>
-# (1999-08-23) specifies only the 1999-10-03 and 2000-02-27 transitions;
+# (1999-08-23), adopted by same states, says only 1999-10-03 and 2000-02-27;
# after that, these rules are guesses and are quite possibly wrong,
# but they are more likely than no DST at all.
Rule Brazil 1999 max - Oct Sun>=1 0:00 1:00 S
Rule Brazil 2000 max - Feb lastSun 0:00 0 -
+
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
#
# Fernando de Noronha
diff -pu tz-1999ee-patch/tzselect.ksh tz/tzselect.ksh
--- tz-1999ee-patch/tzselect.ksh Sun May 24 12:15:13 1998
+++ tz/tzselect.ksh Mon Sep 20 22:57:37 1999
@@ -289,5 +289,17 @@ Universal Time is now: $UTdate."
do :
done
-# Output the answer.
+case $SHELL in
+*csh) file=.login line="setenv TZ '$TZ'";;
+*) file=.profile line="TZ='$TZ'; export TZ"
+esac
+
+echo >&2 "
+You can make this change permanent for yourself by appending the line
+ $line
+to the file '$file' in your home directory; then log out and log in again.
+
+Here is that TZ value again, this time on standard output so that you
+can use the $0 command in shell scripts:"
+
echo "$TZ"
diff -pu tz-1999ee-patch/zone.tab tz/zone.tab
--- tz-1999ee-patch/zone.tab Thu Mar 25 06:47:47 1999
+++ tz/zone.tab Mon Sep 20 22:57:37 1999
@@ -88,14 +88,15 @@ CA +4734-05243 America/St_Johns Newfound
CA +4439-06336 America/Halifax Atlantic Time - Nova Scotia (most places), NB, W Labrador, E Quebec & PEI
CA +4612-05957 America/Glace_Bay Atlantic Time - Nova Scotia - places that did not observe DST 1966-1971
CA +5320-06025 America/Goose_Bay Atlantic Time - E Labrador
-CA +6608-06544 America/Pangnirtung Atlantic Time - Northwest Territories
CA +4531-07334 America/Montreal Eastern Time - Ontario & Quebec - most locations
CA +4901-08816 America/Nipigon Eastern Time - Ontario & Quebec - places that did not observe DST 1967-1973
CA +4823-08915 America/Thunder_Bay Eastern Time - Thunder Bay, Ontario
-CA +6344-06828 America/Iqaluit Eastern Time - Northwest Territories
CA +4953-09709 America/Winnipeg Central Time - Manitoba & west Ontario
CA +4843-09429 America/Rainy_River Central Time - Rainy River & Fort Frances, Ontario
-CA +6245-09210 America/Rankin_Inlet Central Time - Northwest Territories
+CA +6608-06544 America/Pangnirtung Central Time - Pangnirtung, Nunavut
+CA +6344-06828 America/Iqaluit Central Time - east Nunavut
+CA +6245-09210 America/Rankin_Inlet Central Time - central Nunavut
+CA +6903-10505 America/Cambridge_Bay Central Time - west Nunavut
CA +5024-10439 America/Regina Central Standard Time - Saskatchewan - most locations
CA +5017-10750 America/Swift_Current Central Standard Time - Saskatchewan - midwest
CA +5333-11328 America/Edmonton Mountain Time - Alberta, east British Columbia & west Saskatchewan
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