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-rw-r--r--time/asia49
1 files changed, 40 insertions, 9 deletions
diff --git a/time/asia b/time/asia
index 78ecb30d93..6e7c63652b 100644
--- a/time/asia
+++ b/time/asia
@@ -1,4 +1,4 @@
-# @(#)asia	7.12
+# @(#)asia	7.13
 
 # This data is by no means authoritative; if you think you know better,
 # go ahead and edit the file (and please send any changes to
@@ -48,7 +48,7 @@
 #	8:00	PST PDT	Philippines*
 #	8:00	SGT	Singapore
 #	8:00	UST UDT	Ulan Bator*
-#	9:00	JST	Japan
+#	9:00	JST JDT	Japan
 #	9:00	KST KDT	Korea
 #	9:00	MLT	Moluccas*
 #	9:30	CST	Australian Central Standard Time
@@ -461,7 +461,14 @@ Rule	Zion	1993	only	-	Sep	 5	0:00	0:00	S
 Rule    Zion    1994    only    -       Apr      1      0:00    1:00    D
 Rule    Zion    1994    only    -       Aug     28      0:00    0:00    S
 Rule    Zion    1995    only    -       Mar     31      0:00    1:00    D
-Rule    Zion    1995    only    -       Aug     27      0:00    0:00    S
+# On 1995-03-13 Ephraim Silverberg corrected the next line from Aug 27 to Sep 3.
+Rule    Zion    1995    only    -       Sep      3      0:00    0:00    S
+
+# From Ephraim Silverberg (1995-03-13):
+# The Spokeswoman's office confirmed that there are not yet any dates
+# for the timezone conversion for the years 1996 and beyond yet
+# and this is one of the things the newly-appointed Minister of Interior
+# will have to decide sometime this year.
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Tel_Aviv	2:19:04 -	LMT	1880
@@ -475,20 +482,44 @@ Zone	Asia/Tel_Aviv	2:19:04 -	LMT	1880
 
 # `9:00' and `JST' is from Guy Harris.
 
-# From Paul Eggert <eggert@twinsun.com> (November 18, 1993):
-# Shanks says that the far southern Ryukyu Is (Nansei-Shoto) are 8:00,
-# but we don't have a good location name for them;
-# we don't even know the name of the principal town.
-# There is no information for Marcus.
-# Other Japanese possessions are probably like Asia/Tokyo.
+# From Paul Eggert <eggert@twinsun.com> (1995-03-06):
+# Today's _Asahi Evening News_ (page 4) reports that Japan had
+# daylight saving between 1948 and 1951, but ``the system was discontinued
+# because the public believed it would lead to longer working hours.''
+# Shanks writes that daylight saving in Japan during those years was as follows:
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+#Rule	Japan	1948	only	-	May	Sun>=1	2:00	1:00	D
+#Rule	Japan	1948	1951	-	Sep	Sat>=8	2:00	0	S
+#Rule	Japan	1949	only	-	Apr	Sun>=1	2:00	1:00	D
+#Rule	Japan	1950	1951	-	May	Sun>=1	2:00	1:00	D
+# but the only locations using it were US military bases.
+# We go with Shanks and omit daylight saving in those years for Asia/Tokyo.
+#
+# The same news article also reports that Japan is likely to go on DST in 1996
+# as follows, where I've guessed the AT and LETTER/S columns:
+# Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
+#Rule	Japan	1996	max	-	Apr	Sun>=1	2:00	1:00	D
+#Rule	Japan	1996	max	-	Oct	lastSun	2:00	0	S
 
 # From Shanks (1991):
 # Japan switched from the Japanese calendar on 1893 Jan 1.
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Tokyo	9:19:04	-	LMT	1896
 			9:00	-	JST
+# If Japan adopts DST in 1996, replace the above line with the following lines:
+#			9:00	-	JST	1996
+#			9:00	Japan	J%sT
+# and uncomment the two `Rule' lines commented out above.
+
+# From Paul Eggert <eggert@twinsun.com> (November 18, 1993):
+# Shanks says that the far southern Ryukyu Is (Nansei-Shoto) are 8:00,
+# but we don't have a good location name for them;
+# we don't even know the name of the principal town.
+# Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 #Zone Asia/South_Ryukyu	8:14:44	-	LMT	1896	# Amitori
 #			8:00	-	CST
+# There is no information for Marcus.
+# Other Japanese possessions are probably like Asia/Tokyo.
 
 # Jordan
 # From Paul Eggert <eggert@twinsun.com> (November 18, 1993):