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From: Ken Brown <kbrown@cornell.edu>
To: Eli Zaretskii <eliz@gnu.org>
Cc: eggert@cs.ucla.edu, emacs-devel@gnu.org
Subject: Re: [Emacs-diffs] master 085c7f6 2/2: Test format-time-string with zone arg
Date: Mon, 1 May 2017 12:59:14 -0400	[thread overview]
Message-ID: <da18121e-fe39-6eb3-9fad-a3c035b5b27c@cornell.edu> (raw)
In-Reply-To: <8337cok4c9.fsf@gnu.org>

On 5/1/2017 11:02 AM, Eli Zaretskii wrote:
>> From: Ken Brown <kbrown@cornell.edu>
>> Date: Sun, 30 Apr 2017 17:28:58 -0400
>>
>> On 4/30/2017 4:49 PM, Paul Eggert wrote:
>>>
>>> What does this shell command do?
>>>
>>> TZ='NZST-12NZDT,M9.5.0,M4.1.0/3' date -d@0 +'%Y-%m-%d %H:%M:%S %z (%Z)'
>>>
>>> On a working system with GNU 'date', it should output this:
>>>
>>> 1970-01-01 13:00:00 +1300 (NZDT)
>>>
>>> If it outputs "1970-01-01 12:00:00 +1200 (NZST)" on Cygwin, it's a bug
>>> in Cygwin not in Emacs per se.
>>
>> It does output "1970-01-01 12:00:00 +1200 (NZST)".
> 
> Perhaps that's because the DST beginning in 1970 according to these
> rules is before the epoch.  I assume that this does produce "+1300"
> offset with Cygwin, does it?
> 
>    TZ='NZST-12NZDT,M9.5.0,M4.1.0/3' date -d "Sep 28 1970" +'%Y-%m-%d %H:%M:%S %z (%Z)

Yes, it does.

Ken



  reply	other threads:[~2017-05-01 16:59 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20170427222412.28742.14016@vcs0.savannah.gnu.org>
     [not found] ` <20170427222413.8FBA722040@vcs0.savannah.gnu.org>
2017-04-30 20:41   ` [Emacs-diffs] master 085c7f6 2/2: Test format-time-string with zone arg Ken Brown
2017-04-30 20:49     ` Paul Eggert
2017-04-30 21:28       ` Ken Brown
2017-05-01 15:02         ` Eli Zaretskii
2017-05-01 16:59           ` Ken Brown [this message]
2017-05-01  7:43       ` Eli Zaretskii
2017-05-01 17:49         ` Paul Eggert
2017-05-01 19:36           ` Eli Zaretskii
2017-05-01 23:05             ` Paul Eggert
2017-05-02  6:29               ` Eli Zaretskii
2017-05-02  7:52                 ` Paul Eggert
2017-05-02 17:09                   ` Eli Zaretskii
2017-05-02 21:55                     ` Bruno Haible
2017-05-02 22:35                       ` Paul Eggert
2017-05-03 15:49                         ` Eli Zaretskii
2017-05-03 15:33                       ` Eli Zaretskii
2017-05-03 19:33                       ` Davis Herring
2017-05-03 21:12                         ` Billy O'Neal (VC LIBS)
2017-05-04 14:26                           ` Eli Zaretskii

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