[tz] Add new timezone for Hanoi Capital, Vietnam

[Brian Inglis]

On 2019-02-17 21:40, Guy Harris wrote:
> On Feb 17, 2019, at 5:43 PM, Phake Nick wrote:
>> It is actually reasonable to have both Asia/Hanoi and Asia/Ho_Chi_Minh in 
>> tz database because the two cities (and the two fractions that control 
>> them) used different timezone from year 1968 to 1975, which mean even time
>> after the UNIX Epoch would be affected.
> Any references for what differed between the two regions?

Vietnamese references used for previous consideration of Ha Noi:
https://mm.icann.org/pipermail/tz/2014-October/021633.html

It would be useful if anyone could provide links or references to available
sources (and translations) that would update the record. The original sources
referenced in the online summary linked from the thread above were not available.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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