[tz] Add new timezone for Hanoi Capital, Vietnam
Guy Harris
guy at alum.mit.edu
Mon Feb 18 18:20:52 UTC 2019
On Feb 18, 2019, at 10:07 AM, KP <khaiphan9x at gmail.com> wrote:
> I have a talent for continuous change of Indochina time, but it is a Vietnamese document, I have not found the same document in English. Show that the time of Vietnam taking Asia/Bangkok is wrong, because Thai does not apply under this document
> https://vi.m.wikipedia.org/wiki/Giờ_ở_Việt_Nam
See
https://translate.google.com/translate?sl=auto&tl=en&u=https%3A%2F%2Fvi.wikipedia.org%2Fwiki%2FGiờ_ở_Việt_Nam
for the Google translation into English.
What it says about post-1970-01-01 00:00:00 UTC times is:
Time in Northern Vietnam
...
January 1, 1968 - June 12, 1975 UTC + 07:00:00 Hanoi time zone
Time in South Vietnam
...
January 1, 1960 - June 12, 1975 UTC + 8:00 pm Saigon Standard Time
The time in Vietnam is unified
June 13, 1975 -nay UTC + 07:00:00 Standard time zone
with no indication about standard vs. summer time; the tzdb doesn't show Vietnam ever having seasonal time shifts, so that makes sense. The only reference given on the page doesn't seem to, in the generated translation, address time zones at all.
And, no, it says nothing about Thailand, but, as noted, North Vietnam happened to keep the same time as Thailand from 1970 to reunification; *that's*, plus Bangkok being larger than Hanoi, why Asia/Bangkok is used as the tzdb id for that region.
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