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<TITLE>Chinese timezones do not observe DST</TITLE>
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<DIV dir=ltr align=left><SPAN class=835111714-09082004><FONT face=Arial
color=#0000ff size=2>Since sending this message, Alexandru Pulbere has been
added to the time zone mailing list.</FONT></SPAN></DIV>
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class=835111714-09082004>
<FONT face=Arial color=#0000ff size=2>--ado</FONT></SPAN></DIV><BR>
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<FONT face=Tahoma size=2><B>From:</B> Pulbere, Alexandru
[mailto:Alexandru.Pulbere@cognos.com] <BR><B>Sent:</B> Thursday, August 05, 2004
6:56 PM<BR><B>To:</B> tz@lecserver.nci.nih.gov<BR><B>Subject:</B> Chinese
timezones do not observe DST<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><!-- Converted from text/rtf format -->
<P><FONT face=Arial size=2>I noticed that the timezone description for chinese
timezones use DST.</FONT> <BR><FONT face=Arial size=2>Aparently the chinese
governament stopped using DST in 1992.</FONT> </P>
<P><FONT face=Arial size=2>To fix the problem I changed my copy asia file and
regenerated ICU4J resources (my copy).</FONT> </P><BR>
<P><FONT face=Arial size=2># China</FONT> </P>
<P><FONT face=Arial size=2># From Guy Harris:</FONT> <BR><FONT face=Arial
size=2># People's Republic of China. Yes, they really have only one time
zone.</FONT> </P>
<P><FONT face=Arial size=2># From Bob Devine (1988-01-28):</FONT> <BR><FONT
face=Arial size=2># No they don't. See TIME mag, 1986-02-17 p.52.
Even though</FONT> <BR><FONT face=Arial size=2># China is across 4 physical time
zones, before Feb 1, 1986 only the</FONT> <BR><FONT face=Arial size=2># Peking
(Bejing) time zone was recognized. Since that date, China</FONT> <BR><FONT
face=Arial size=2># has two of 'em -- Peking's and Urumqi (named after the
capital of</FONT> <BR><FONT face=Arial size=2># the Xinjiang Uyghur Autonomous
Region). I don't know about DST for it.</FONT> <BR><FONT face=Arial
size=2>#</FONT> <BR><FONT face=Arial size=2># . . .I just deleted the DST table
and this editor makes it too</FONT> <BR><FONT face=Arial size=2># painful to
suck in another copy.. So, here is what I have for</FONT> <BR><FONT
face=Arial size=2># DST start/end dates for Peking's time zone (info from
AP):</FONT> <BR><FONT face=Arial size=2>#</FONT> <BR><FONT face=Arial
size=2># 1986 May 4 - Sept 14</FONT> <BR><FONT
face=Arial size=2># 1987 mid-April - ??</FONT> </P>
<P><FONT face=Arial size=2># From U. S. Naval Observatory (1989-01-19):</FONT>
<BR><FONT face=Arial size=2>#
CHINA
8 H AHEAD OF UTC ALL OF CHINA, INCL TAIWAN</FONT> <BR><FONT
face=Arial size=2>#
CHINA
9 H AHEAD OF UTC APR 17 - SEP 10</FONT> </P>
<P><FONT face=Arial size=2># From Paul Eggert <eggert@twinsun.com>
(1995-12-19):</FONT> <BR><FONT face=Arial size=2># Shanks writes that China has
had a single time zone since 1980 May 1,</FONT> <BR><FONT face=Arial size=2>#
observing summer DST from 1986 through 1991; this contradicts Devine's</FONT>
<BR><FONT face=Arial size=2># note about Time magazine, though apparently
_something_ happened in 1986.</FONT> <BR><FONT face=Arial size=2># Go with
Shanks for now. I made up names for the other pre-1980 time zones.</FONT>
</P>
<P><FONT face=Arial size=2># From Shanks:</FONT> <BR><FONT face=Arial size=2>#
Rule NAME FROM
TO TYPE
IN ON
AT SAVE LETTER/S</FONT>
<BR><FONT face=Arial size=2>Rule Shang
1940 only
- Jun
3 0:00 1:00
D</FONT> <BR><FONT face=Arial size=2>Rule Shang
1940 1941
- Oct
1 0:00
0 S</FONT> <BR><FONT face=Arial
size=2>Rule Shang 1941
only -
Mar 16
0:00 1:00 D</FONT> <BR><FONT face=Arial
size=2>Rule PRC 1949
only -
Jan 1
0:00 0 S</FONT> <BR><FONT
face=Arial size=2>Rule PRC
1986 only
- May
4 0:00 1:00
D</FONT> <BR><FONT face=Arial size=2>Rule
PRC 1986 1991
- Sep Sun>=11
0:00 0 S</FONT> <BR><FONT
face=Arial size=2>Rule PRC
1987 1991
- Apr Sun>=10
0:00 1:00 D</FONT> <BR><FONT face=Arial
size=2>#</FONT> <BR><FONT face=Arial size=2># Zone NAME
GMTOFF RULES
FORMAT [UNTIL]</FONT> <BR><FONT face=Arial size=2>#</FONT> <BR><FONT
face=Arial size=2># From Anthony Fok (2001-12-20):</FONT> <BR><FONT face=Arial
size=2># BTW, I did some research on-line and found some info regarding these
five</FONT> <BR><FONT face=Arial size=2># historic timezones from some Taiwan
websites. And yes, there are official</FONT> <BR><FONT face=Arial size=2>#
Chinese names for these locales (before 1949):</FONT> <BR><FONT face=Arial
size=2># Changbai Time ("Long-white Time", Long-white = Heilongjiang
area)</FONT> <BR><FONT face=Arial size=2>Zone
Asia/Harbin 8:26:44
- LMT 1928 # or
Haerbin</FONT> <BR>
<FONT face=Arial
size=2>8:30 -
CHAT 1932 Mar # Changbai Time</FONT>
<BR>
<FONT face=Arial
size=2>8:00 -
CST 1940</FONT>
<BR>
<FONT face=Arial
size=2>9:00 -
CHAT 1966 May</FONT>
<BR>
<FONT face=Arial
size=2>8:30 -
CHAT 1980 May</FONT>
<BR>
<FONT face=Arial
size=2>8:00 PRC C%sT
1992</FONT> <BR>
<FONT face=Arial
size=2>8:00 - CST</FONT>
<BR><FONT face=Arial size=2># Zhongyuan Time ("Central plain Time")</FONT>
<BR><FONT face=Arial size=2>Zone Asia/Shanghai
8:05:52 - LMT
1928</FONT> <BR>
<FONT face=Arial
size=2>8:00 Shang C%sT
1949</FONT> <BR>
<FONT face=Arial
size=2>8:00 PRC C%sT
1992</FONT> <BR>
<FONT face=Arial
size=2>8:00 - CST</FONT>
<BR><FONT face=Arial size=2># Long-shu Time (probably due to Long and Shu being
two names of that area)</FONT> <BR><FONT face=Arial
size=2>Zone Asia/Chongqing 7:06:20
- LMT 1928 # or
Chungking</FONT> <BR>
<FONT face=Arial
size=2>7:00 -
LONT 1980 May # Long-shu Time</FONT>
<BR>
<FONT face=Arial
size=2>8:00 PRC C%sT
1992</FONT> <BR>
<FONT face=Arial
size=2>8:00 - CST</FONT>
<BR><FONT face=Arial size=2># Xin-zang Time ("Xinjiang-Tibet Time")</FONT>
<BR><FONT face=Arial size=2>Zone
Asia/Urumqi 5:50:20
- LMT 1928 # or
Urumchi</FONT> <BR>
<FONT face=Arial
size=2>6:00 -
URUT 1980 May # Urumqi Time</FONT>
<BR>
<FONT face=Arial
size=2>8:00 PRC C%sT
1992</FONT> <BR>
<FONT face=Arial
size=2>8:00 - CST</FONT>
<BR><FONT face=Arial size=2># Kunlun Time</FONT> <BR><FONT face=Arial
size=2>Zone Asia/Kashgar 5:03:56
- LMT 1928 # or
Kashi or Kaxgar</FONT> <BR>
<FONT face=Arial
size=2>5:30 -
KAST 1940 # Kashgar Time</FONT>
<BR>
<FONT face=Arial
size=2>5:00 -
KAST 1980 May</FONT>
<BR>
<FONT face=Arial
size=2>8:00 PRC C%sT
1992</FONT> <BR>
<FONT face=Arial
size=2>8:00 - CST</FONT>
</P>
<P><FONT face=Arial size=2># Hong Kong (Xianggang)</FONT> <BR><FONT face=Arial
size=2># Rule NAME FROM
TO TYPE
IN ON
AT SAVE LETTER/S</FONT>
<BR><FONT face=Arial size=2>Rule
HK 1946 only
- Apr
20 3:30 1:00
S</FONT> <BR><FONT face=Arial size=2>Rule
HK 1946 only
- Dec
1 3:30
0 -</FONT> <BR><FONT face=Arial
size=2>Rule HK
1947 only
- Apr
13 3:30 1:00
S</FONT> <BR><FONT face=Arial size=2>Rule
HK 1947 only
- Dec
30 3:30
0 -</FONT> <BR><FONT face=Arial
size=2>Rule HK
1948 only
- May
2 3:30
1:00 S</FONT> <BR><FONT face=Arial
size=2>Rule HK
1948 1952
- Oct lastSun
3:30 0 -</FONT> <BR><FONT
face=Arial size=2>Rule HK
1949 1953
- Apr
Sun>=1 3:30 1:00 S</FONT> <BR><FONT
face=Arial size=2>Rule HK
1953 only
- Nov
1 3:30
0 -</FONT> <BR><FONT face=Arial
size=2>Rule HK
1954 1964
- Mar Sun>=18
3:30 1:00 S</FONT> <BR><FONT face=Arial
size=2>Rule HK
1954 only
- Oct
31 3:30
0 -</FONT> <BR><FONT face=Arial
size=2>Rule HK
1955 1964
- Nov
Sun>=1 3:30 0
-</FONT> <BR><FONT face=Arial size=2>Rule
HK 1965 1977
- Apr Sun>=16
3:30 1:00 S</FONT> <BR><FONT face=Arial
size=2>Rule HK
1965 1977
- Oct Sun>=16
3:30 0 -</FONT> <BR><FONT
face=Arial size=2>Rule HK
1979 1980
- May
Sun>=8 3:30 1:00 S</FONT> <BR><FONT
face=Arial size=2>Rule HK
1979 1980
- Oct Sun>=16
3:30 0 -</FONT> <BR><FONT
face=Arial size=2># Zone NAME
GMTOFF RULES
FORMAT [UNTIL]</FONT> <BR><FONT face=Arial size=2>Zone
Asia/Hong_Kong 7:36:36 -
LMT 1904 Oct 30</FONT>
<BR>
<FONT face=Arial
size=2>8:00 HK HK%sT
2002</FONT> <BR>
<FONT face=Arial
size=2>8:00 -
CST
</FONT></P><BR>
<P><FONT face=Arial
size=2>###############################################################################</FONT>
</P>
<P><FONT face=Arial size=2># Taiwan</FONT> </P>
<P><FONT face=Arial size=2># Shanks writes that Taiwan observed DST during 1945,
when it</FONT> <BR><FONT face=Arial size=2># was still controlled by
Japan. This is hard to believe, but we don't</FONT> <BR><FONT face=Arial
size=2># have any other information.</FONT> </P>
<P><FONT face=Arial size=2># Rule NAME
FROM TO TYPE
IN ON
AT SAVE LETTER/S</FONT>
<BR><FONT face=Arial size=2>Rule Taiwan
1945 1951
- May
1 0:00
1:00 D</FONT> <BR><FONT face=Arial
size=2>Rule Taiwan 1945
1951 -
Oct 1
0:00 0 S</FONT> <BR><FONT
face=Arial size=2>Rule Taiwan 1952
only -
Mar 1
0:00 1:00 D</FONT> <BR><FONT face=Arial
size=2>Rule Taiwan 1952
1954 -
Nov 1
0:00 0 S</FONT> <BR><FONT
face=Arial size=2>Rule Taiwan 1953
1959 -
Apr 1
0:00 1:00 D</FONT> <BR><FONT face=Arial
size=2>Rule Taiwan 1955
1961 -
Oct 1
0:00 0 S</FONT> <BR><FONT
face=Arial size=2>Rule Taiwan 1960
1961 -
Jun 1
0:00 1:00 D</FONT> <BR><FONT face=Arial
size=2>Rule Taiwan 1974
1975 -
Apr 1
0:00 1:00 D</FONT> <BR><FONT face=Arial
size=2>Rule Taiwan 1974
1975 -
Oct 1
0:00 0 S</FONT> <BR><FONT
face=Arial size=2>Rule Taiwan 1980
only -
Jun 30
0:00 1:00 D</FONT> <BR><FONT face=Arial
size=2>Rule Taiwan 1980
only -
Sep 30
0:00 0 S</FONT> <BR><FONT
face=Arial size=2># Zone NAME
GMTOFF RULES
FORMAT [UNTIL]</FONT> <BR><FONT face=Arial size=2>Zone
Asia/Taipei 8:06:00
- LMT 1896 # or
Taibei or T'ai-pei</FONT> <BR>
<FONT face=Arial
size=2>8:00 Taiwan C%sT 1992</FONT>
<BR>
<FONT face=Arial
size=2>8:00 - CST</FONT>
</P>
<P><FONT face=Arial size=2># Macau (Macao, Aomen)</FONT> <BR><FONT face=Arial
size=2># Rule NAME FROM
TO TYPE
IN ON
AT SAVE LETTER/S</FONT>
<BR><FONT face=Arial size=2>Rule Macau
1961 1962
- Mar Sun>=16
3:30 1:00 S</FONT> <BR><FONT face=Arial
size=2>Rule Macau 1961
1964 -
Nov Sun>=1 3:30
0 -</FONT> <BR><FONT face=Arial
size=2>Rule Macau 1963
only -
Mar Sun>=16 0:00
1:00 S</FONT> <BR><FONT face=Arial
size=2>Rule Macau 1964
only -
Mar Sun>=16 3:30
1:00 S</FONT> <BR><FONT face=Arial
size=2>Rule Macau 1965
only -
Mar Sun>=16 0:00
1:00 S</FONT> <BR><FONT face=Arial
size=2>Rule Macau 1965
only -
Oct 31
0:00 0 -</FONT> <BR><FONT
face=Arial size=2>Rule Macau
1966 1971
- Apr Sun>=16
3:30 1:00 S</FONT> <BR><FONT face=Arial
size=2>Rule Macau 1966
1971 -
Oct Sun>=16 3:30
0 -</FONT> <BR><FONT face=Arial
size=2>Rule Macau 1972
1974 -
Apr Sun>=15 0:00
1:00 S</FONT> <BR><FONT face=Arial
size=2>Rule Macau 1972
1973 -
Oct Sun>=15 0:00
0 -</FONT> <BR><FONT face=Arial
size=2>Rule Macau 1974
1977 -
Oct Sun>=15 3:30
0 -</FONT> <BR><FONT face=Arial
size=2>Rule Macau 1975
1977 -
Apr Sun>=15 3:30
1:00 S</FONT> <BR><FONT face=Arial
size=2>Rule Macau 1978
1980 -
Apr Sun>=15 0:00
1:00 S</FONT> <BR><FONT face=Arial
size=2>Rule Macau 1978
1980 -
Oct Sun>=15 0:00
0 -</FONT> <BR><FONT face=Arial size=2>#
Zone NAME
GMTOFF RULES FORMAT [UNTIL]</FONT> <BR><FONT face=Arial
size=2>Zone Asia/Macau 7:34:20
- LMT 1912</FONT>
<BR>
<FONT face=Arial
size=2>8:00 Macau MO%sT 1999 Dec 20 #
return to China</FONT> <BR>
<FONT face=Arial
size=2>8:00 - CST</FONT>
</P><BR></DIV>
<DIV> </DIV>
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