[tz] North Vietnam 1970 to 1975 - Asia/Hanoi belongs into main file
alois at astro.ch
Sun Jun 28 21:22:32 UTC 2020
I don't agree.
I think the capital of North Vietnam, Asia/Hanoi should be present in
the main file, and used.
Geonames.org will and should not use zones which exist only in backzone
and will not be compiled by default into binary TZ distributions.
They will and should not use the capital of another country, Bangkok,
for parts of Vietnam.
In my opinion the case is clear: Hanoi belongs into main file, to cover
the 1970-1975 period correctly.
On 28.06.20 23:12, Paul Eggert wrote:
> On 6/28/20 7:42 AM, Alois Treindl wrote:
>> The public geonames.org database assigns the zone Asia/Ho_Chi_Minh for all
>> location in country VN (Vietnam).
>> This indicates that the comment above is not followed.
> That's a problem with the geonames.org database, and I suggest reporting the bug
> to them. The bug should be reported regardless of whether we change tzdb since
> geonames.org should work with what we have now as well as with what we might
> have in the future. You can point them at the zone1970.tab file to help explain
> the situation.
> A little background here. We don't have the resources to create entries for
> every location in this part of southeast Asia, with different transition times
> for when locations changed hands between North and South Vietnam during the
> 1970-1975 conflict. So we approximate by using Ho Chi Minh as the representative
> for clocks in south Vietnam, and Bangkok as the representative for clocks in
> Thailand, Cambodia, Laos and north Vietnam. We have links from Asia/Bangkok to
> Asia/Phnom_Penh and Asia/Vientiane for backward-compatibility purposes only, as
> the names Asia/Phnom_Penh and Asia/Vientiane would not exist according to
> today's guidelines. There's no need for a backward-compatibility link for
> Asia/Hanoi since that name never existed in tzdb. These are all technical
> reasons, not political ones.
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