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Subject:	Re: Time zone bug
To:	cygwin AT cygwin DOT com
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From:	cyg Simple <cygsimple AT gmail DOT com>
Message-ID:	<c3f51391-e519-050b-0d6e-c982852bf82a@gmail.com>
Date:	Mon, 1 May 2017 11:25:04 -0400
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On 4/30/2017 7:19 PM, Steven Penny wrote:
> On Sun, 30 Apr 2017 17:37:00, Ken Brown wrote:
>> As a result of a failing emacs test, I came across the following:
>>
>> $ TZ='NZST-12NZDT,M9.5.0,M4.1.0/3' date -d AT 0 +'%Y-%m-%d %H:%M:%S %z (%Z)'
>> 1970-01-01 12:00:00 +1200 (NZST)
>>
>> The same command on Linux yields "1970-01-01 13:00:00 +1300 (NZDT)",
>> which is
>> correct according to Paul Eggert
>> (https://lists.gnu.org/archive/html/emacs-devel/2017-04/msg00881.html).
> 
> I concur, here is non-esoteric example Linux:
> 
>    $ TZ=Pacific/Auckland date +%Z
>    NZST
> 
>    $ TZ=NZST date +%Z
>    NZST
> 
>    $ TZ=NZDT date +%Z
>    NZDT
> 
> Cygwin:
> 
>    $ TZ=Pacific/Auckland date +%Z
>    NZST
> 
>    $ TZ=NZST date +%Z
>    GMT
> 
>    $ TZ=NZDT date +%Z
>    GMT

The TZ value doesn't matter.

$ TZ=America/New_York date +%Z
EDT

$ TZ=EDT date +%Z
GMT

-- 
cyg Simple

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