[tz] North Vietnam 1970 to 1975 - Asia/Hanoi belongs into main file

pierreneter pierreneter at gmail.com
Mon Jun 29 00:59:59 UTC 2020


Thanks for making that information clear to me. This document is very
useful for explaining why things are formed.

On Mon, Jun 29, 2020 at 7:42 AM Paul Eggert <eggert at cs.ucla.edu> wrote:

> On 6/28/20 4:17 PM, pierreneter wrote:
> > if Asia/Bangkok represents areas with a time zone
> > of +7, then why was Asia/Ho_Chi_Minh created?
>
> Among other things Asia/Ho_Chi_Minh differs from Asia/Bangkok for
> timestamps
> from 1959 to 1975, when south Vietnam was at +08 while the rest of the
> region
> was at +07. tzdb identifies timezones where clocks have agreed since 1970,
> and
> since these regions disagreed from 1970 to 1975 they need distinct
> identifiers.
> For more, see <https://data.iana.org/time-zones/theory.html#naming>.
>
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