On Mon, 18 May 2020 01:58:01 +0000, Mike Schwab wrote:
>Yep. You almost need a country code, and for multi zone countries a
>zone indicator. Especially since a shared time zone might have
>different DST / ST switch dates in different countries.
>
And it's up to the recipient to unwind the process?
That's the reason that SMTP date headers specify simply "+/-hhmm"
(Which might be +0000 for UTC.)
Do you want to know the physical time the message originated,
or the solar illumination at that point in spacetime?
Otherwise, the Truth (which z/OS shuns) is:
https://www.iana.org/time-zones
>On Sun, May 17, 2020 at 9:03 PM Paul Gilmartin
>> >
>> Beware of ambiguity. AST is both Arabia Standard Time and Atlantic Standard
>> Time,
>> https://en.wikipedia.org/wiki/List_of_time_zone_abbreviations
>>
>> ... and I hadn't gotten through the "A"s yet.
-- gil
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