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<div class="moz-cite-prefix">On 05/10/2014 07:32, Paul Eggert wrote:<br>
</div>
<blockquote cite="mid:54309186.4030405@cs.ucla.edu" type="cite">Tim
Parenti wrote:
<br>
<br>
<blockquote type="cite">... ICT referring to different UT offsets
for several periods. Perhaps, prior to
<br>
reunification, NICT and SICT should be used for "North/South
Indochina Time"?
<br>
</blockquote>
<br>
It wasn't North vs South. The new data say that French Indochina
mostly used UT+7, but sometimes all of French Indochina used UT+8,
sometimes just South Vietnam, sometimes more of a hodgepodge. I
had independently run into this problem and thought of using the
abbreviation "IDT" (short for InDochina Time) for UT+8 in
Indochina to help clear this up.
<br>
</blockquote>
I agree with you.<br>
<blockquote cite="mid:54309186.4030405@cs.ucla.edu" type="cite">
<br>
There's a bigger problem, though. The new data also tell us that
our entries for Laos and Cambodia are almost entirely bogus. We
already knew that, and I had slated them for 'backzone' anyway, so
now's a good time to do that. As a corollary, although we clearly
need to fix Asia/Ho_Chi_Minh, we don't need a separate Zone for
Asia/Hanoi as it is identical to Asia/Bangkok since 1970. This
will give us a simpler fix and an easier-to-maintain result.
<br>
<br>
A proposed pair of patches is attached. The first moves the bogus
data for Cambodia and Laos to 'backzone'. The second fixes
Asia/Ho_Chi_Minh and adds a line to zone1970.tab so that users in
Vietnam now have two choices, one for each half of the country.
<br>
<br>
</blockquote>
About second patch:<br>
<br>
<pre wrap="">+Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jul 1
+ 7:06:30 - PLMT 1911 May 1
+ 7:00 - ICT 1942 Dec 31 23:00
+ 8:00 - IDT 1945 Mar 14 23:00
+ 9:00 - JST 1945 Sep 2
+ 7:00 - ICT 1947 Apr 1
+ 8:00 - IDT 1955 Jul 1
+ 7:00 - ICT 1959 Dec 31 23:00
+ 8:00 - IDT 1975 Jun 13
7:00 - ICT
This is Hanoi, not Ho Chi Minh City.
I find an other book about this topic:
Name: Lịch âm dương Việt Nam 1900-2010
Author: Nguyễn Văn Chung
Publisher: Nhà xuất bản văn hóa dân tộc
Edition: 2001
</pre>
<tt>- It confirms the date `1906 Jul 1'. So I think this date is
correct.
</tt><br>
<tt>- It said Phù Liễn is </tt><tt><font size="2">104°17’17” East.
But I think `</font></tt><tt>east of Paris' is correct. In
Google map, it is: 20°47'05.1"N+106°38'22.0"E</tt><br>
<font size="2"><tt>Unfortunately, It don't show any other
information that we need</tt><tt>.</tt></font><br>
<br>
<tt>Some photos about Phù Liễn:</tt><tt><br>
</tt><tt><br>
</tt><tt>* <a class="moz-txt-link-rfc2396E" href="http://www.panoramio.com/photo/22547402"><http://www.panoramio.com/photo/22547402></a></tt><tt><br>
</tt><tt>* <a class="moz-txt-link-rfc2396E" href="http://www.panoramio.com/photo/57154621"><http://www.panoramio.com/photo/57154621></a></tt><tt><br>
</tt><br>
<font size="2"><tt></tt></font><font face="Verdana, Arial,
Helvetica, sans-serif" size="2"> </font>
<pre class="moz-signature" cols="72">--
Trần Ngọc Quân.</pre>
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