Squashed 'tz/' changes from 388b0a551..1e0637309

14c73382c Release 2019a
05d5302e8 * asia: Abbreviate URL.
c3a117704 Tweak commentary on recent changes
7a133ff92 Palestine doesn't start DST until 2019-03-30.
2e5677e1d * zic.c: Fix spelling typo (thanks to Antonio Diaz Diaz).
8744ddc14 zic -r/@T is now exclusive, not inclusive
70c6bd184 zic: fix bug when -r removes all transitions
ea042515f zic: fix transitions created with -r
ea17649a8 Fix 'make clean' problem with clean_*.dir
4a6a2d26b zic: new -r option
ce0baf7a4 Etc/UCT is now an alias for Etc/UTC
622d4af59 Israel observed DST in 1980 and 1984
5f48dee82 * theory.html: Decouple timezones from countries earlier.
717c897dc * africa: Realphabetize.
bc2756dc5 Finish renaming theory.html section
247d4925a Swaziland changed its name to Eswatini
503608b6a Check theory.html too
6176aefe7 Deprecate the ISO 3166-1 guideline
9e0801352 * asia: Spelling fix.
b228f9861 Mention timezone splits and identifiers
9a608596c Add Vietnam commentary and fluidity guideline
c11f5ce41 Internet RFC 8536 has been published
c5612ec0e Remove "About Time" URL
224ba6281 * tz-art.html: Add "About Time" URL.
3bb6716a8 * README: Fix "About Time" quotes (thanks to Arthur David Olson).
b0c64d6e7 No leap second on 2019-06-30.
934f12607 Put “North” before “Macedonia”
8e3a0f813 Improve doc for rule interpretation
a39622d5b * NEWS, tz-link.html: Cite Tim Parenti’s tzdata-meta.
f18c24d66 Metlakatla "falls back" to rejoin Alaska Time on 2019-01-20 at 02:00.
9625c4819 Improve description of vanguard/main/rearguard

git-subtree-dir: tz
git-subtree-split: 1e06373090fda6ae1883a9e9c765337f3a9d39e0

1 files changed, 39 insertions, 3 deletions

diff --git a/asia b/asia
index 3165203..d790da5 100644
--- a/asia
+++ b/asia
@@ -1620,6 +1620,24 @@ Rule	Zion	1974	only	-	Jul	 7	0:00	1:00	D
 Rule	Zion	1974	only	-	Oct	13	0:00	0	S
 Rule	Zion	1975	only	-	Apr	20	0:00	1:00	D
 Rule	Zion	1975	only	-	Aug	31	0:00	0	S
+
+# From Alois Treindl (2019-03-06):
+# http://www.moin.gov.il/Documents/שעון קיץ/clock-50-years-7-2014.pdf
+# From Isaac Starkman (2019-03-06):
+# Summer time was in that period in 1980 and 1984, see
+# https://www.ynet.co.il/articles/0,7340,L-3951073,00.html
+# You can of course read it in translation.
+# I checked the local newspapers for that years.
+# It started on midnight and end at 01.00 am.
+# From Paul Eggert (2019-03-06):
+# Also see this thread about the moin.gov.il URL:
+# https://mm.icann.org/pipermail/tz/2018-November/027194.html
+Rule	Zion	1980	only	-	Aug	 2	0:00	1:00	D
+Rule	Zion	1980	only	-	Sep	13	1:00	0	S
+Rule	Zion	1984	only	-	May	 5	0:00	1:00	D
+Rule	Zion	1984	only	-	Aug	25	1:00	0	S
+
+# From Shanks & Pottenger:
 Rule	Zion	1985	only	-	Apr	14	0:00	1:00	D
 Rule	Zion	1985	only	-	Sep	15	0:00	0	S
 Rule	Zion	1986	only	-	May	18	0:00	1:00	D
@@ -3071,9 +3089,15 @@ Zone	Asia/Karachi	4:28:12 -	LMT	1907
 # the official website, though the decree did not specify the exact
 # time of the time shift.
 # http://www.palestinecabinet.gov.ps/Website/AR/NDecrees/ViewFile.ashx?ID=e7a42ab7-ee23-435a-b9c8-a4f7e81f3817
+
+# From Even Scharning (2019-03-23):
+# DST in Palestine will start on 30 March this year, not 23 March as the time
+# zone database predicted.
+# https://ramallah.news/post/123610
 #
-# From Paul Eggert (2018-03-16):
-# For 2016 on, predict spring transitions on March's fourth Saturday at 01:00.
+# From Tim Parenti (2019-03-23):
+# Combining this with the rules observed since 2016, adjust our spring
+# transition guess to Mar Sat>=24.
 
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule EgyptAsia	1957	only	-	May	10	0:00	1:00	S
@@ -3104,7 +3128,7 @@ Rule Palestine	2012	only	-	Sep	21	1:00	0	-
 Rule Palestine	2013	only	-	Sep	Fri>=21	0:00	0	-
 Rule Palestine	2014	2015	-	Oct	Fri>=21	0:00	0	-
 Rule Palestine	2015	only	-	Mar	lastFri	24:00	1:00	S
-Rule Palestine	2016	max	-	Mar	Sat>=22	1:00	1:00	S
+Rule Palestine	2016	max	-	Mar	Sat>=24	1:00	1:00	S
 Rule Palestine	2016	max	-	Oct	lastSat	1:00	0	-
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
@@ -3596,5 +3620,17 @@ Zone Asia/Ho_Chi_Minh	7:06:40 -	LMT	1906 Jul  1
 			8:00	-	+08	1975 Jun 13
 			7:00	-	+07
 
+# From Paul Eggert (2019-02-19):
+#
+# The Ho Chi Minh entry suffices for most purposes as it agrees with all of
+# Vietnam since 1975-06-13.  Presumably clocks often changed in south Vietnam
+# in the early 1970s as locations changed hands during the war; however the
+# details are unknown and would likely be too voluminous for this database.
+#
+# For timestamps in north Vietnam back to 1970 (the tzdb cutoff),
+# use Asia/Bangkok; see the VN entries in the file zone1970.tab.
+# For timestamps before 1970, see Asia/Hanoi in the file 'backzone'.
+
+
 # Yemen
 # See Asia/Riyadh.