Time-OlsonTZ-Data

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# 1955        20 Mar to 6 Nov
# 1956        18 Mar to 4 Nov
# 1957        24 Mar to 3 Nov
# 1958        23 Mar to 2 Nov
# 1959        22 Mar to 1 Nov
# 1960        20 Mar to 6 Nov
# 1961        19 Mar to 5 Nov
# 1962        18 Mar to 4 Nov
# 1963        24 Mar to 3 Nov
# 1964        22 Mar to 1 Nov
# 1965        18 Apr to 17 Oct
# 1966        17 Apr to 16 Oct
# 1967        16 Apr to 22 Oct
# 1968        21 Apr to 20 Oct
# 1969        20 Apr to 19 Oct
# 1970        19 Apr to 18 Oct
# 1971        18 Apr to 17 Oct
# 1972        16 Apr to 22 Oct
# 1973        22 Apr to 21 Oct
# 1973/74     30 Dec 73 to 20 Oct 74
# 1975        20 Apr to 19 Oct
# 1976        18 Apr to 17 Oct
# 1977        Nil
# 1978        Nil
# 1979        13 May to 21 Oct
# 1980 to Now Nil
# The page does not give times of day for transitions,
# or dates for the 1942 and 1945 transitions.
# The Japanese occupation of Hong Kong began 1941-12-25.

# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
Rule	HK	1946	only	-	Apr	21	0:00	1:00	S
Rule	HK	1946	only	-	Dec	1	3:30s	0	-
Rule	HK	1947	only	-	Apr	13	3:30s	1:00	S
Rule	HK	1947	only	-	Nov	30	3:30s	0	-
Rule	HK	1948	only	-	May	2	3:30s	1:00	S
Rule	HK	1948	1952	-	Oct	Sun>=28	3:30s	0	-
Rule	HK	1949	1953	-	Apr	Sun>=1	3:30	1:00	S
Rule	HK	1953	1964	-	Oct	Sun>=31	3:30	0	-
Rule	HK	1954	1964	-	Mar	Sun>=18	3:30	1:00	S
Rule	HK	1965	1976	-	Apr	Sun>=16	3:30	1:00	S
Rule	HK	1965	1976	-	Oct	Sun>=16	3:30	0	-
Rule	HK	1973	only	-	Dec	30	3:30	1:00	S
Rule	HK	1979	only	-	May	13	3:30	1:00	S
Rule	HK	1979	only	-	Oct	21	3:30	0	-
# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
		#STDOFF	7:36:41.7
Zone	Asia/Hong_Kong	7:36:42 -	LMT	1904 Oct 29 17:00u
			8:00	-	HKT	1941 Jun 15  3:00
			8:00	1:00	HKST	1941 Oct  1  4:00
			8:00	0:30	HKWT	1941 Dec 25
			9:00	-	JST	1945 Nov 18  2:00
			8:00	HK	HK%sT

###############################################################################

# Taiwan

# From smallufo (2010-04-03):
# According to Taiwan's CWB [Central Weather Bureau],
# http://www.cwb.gov.tw/V6/astronomy/cdata/summert.htm
# Taipei has DST in 1979 between July 1st and Sep 30.

# From Yu-Cheng Chuang (2013-07-12):
# On Dec 28, 1895, the Meiji Emperor announced Ordinance No. 167 of
# Meiji Year 28 "The clause about standard time", mentioned that
# Taiwan and Penghu Islands, as well as Yaeyama and Miyako Islands
# (both in Okinawa) adopt the Western Standard Time which is based on
# 120E. The adoption began from Jan 1, 1896. The original text can be
# found on Wikisource:
# https://ja.wikisource.org/wiki/標準時ニ關スル件_(公布時)
# ... This could be the first adoption of time zone in Taiwan, because
# during the Qing Dynasty, it seems that there was no time zone
# declared officially.
#
# Later, in the beginning of World War II, on Sep 25, 1937, the Showa
# Emperor announced Ordinance No. 529 of Showa Year 12 "The clause of
# revision in the ordinance No. 167 of Meiji year 28 about standard
# time", in which abolished the adoption of Western Standard Time in
# western islands (listed above), which means the whole Japan
# territory, including later occupations, adopt Japan Central Time
# (UT+9). The adoption began on Oct 1, 1937. The original text can
# be found on Wikisource:
# https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件
#
# That is, the time zone of Taipei switched to UT+9 on Oct 1, 1937.

# From Yu-Cheng Chuang (2014-07-02):
# I've found more evidence about when the time zone was switched from UT+9
# back to UT+8 after WW2.  I believe it was on Sep 21, 1945.  In a document
# during Japanese era [1] in which the officer told the staff to change time
# zone back to Western Standard Time (UT+8) on Sep 21.  And in another
# history page of National Cheng Kung University [2], on Sep 21 there is a
# note "from today, switch back to Western Standard Time".  From these two
# materials, I believe that the time zone change happened on Sep 21.  And
# today I have found another monthly journal called "The Astronomical Herald"
# from The Astronomical Society of Japan [3] in which it mentioned the fact
# that:
#
# 1. Standard Time of the Country (Japan) was adopted on Jan 1, 1888, using
# the time at 135E (GMT+9)
#
# 2. Standard Time of the Country was renamed to Central Standard Time, on Jan
# 1, 1898, and on the same day, the new territories Taiwan and Penghu islands,
# as well as Yaeyama and Miyako islands, adopted a new time zone called
# Western Standard Time, which is in GMT+8.
#
# 3. Western Standard Time was deprecated on Sep 30, 1937. From then all the
# territories of Japan adopted the same time zone, which is Central Standard
# Time.
#
# [1] Academica Historica, Taiwan:
# http://163.29.208.22:8080/govsaleShowImage/connect_img.php?s=00101738900090036&e=00101738900090037
# [2] Nat'l Cheng Kung University 70th Anniversary Special Site:
# http://www.ncku.edu.tw/~ncku70/menu/001/01_01.htm
# [3] Yukio Niimi, The Standard Time in Japan (1997), p.475:
# http://www.asj.or.jp/geppou/archive_open/1997/pdf/19971001c.pdf

# Yu-Cheng Chuang (2014-07-03):
# I finally have found the real official gazette about changing back to
# Western Standard Time on Sep 21 in Taiwan.  It's Taiwan Governor-General



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