[tz] Add new timezone for Hanoi Capital, Vietnam

Guy Harris guy at alum.mit.edu
Mon Feb 18 17:17:07 UTC 2019

On Feb 18, 2019, at 2:21 AM, KP <khaiphan9x at gmail.com> wrote:

> Paul Eggert, I know that there must be some rules for forming time zones. However, I see many exceptions such as Shanghai and Beijing,

In what fashion do Shanghai and Beijing constitute an exception to the rules?

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