GNU bug report logs - #48353
result of date is wrong if Etc/GMT is used

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Thomas Güttinger <Guettinger <at> igel.com>
Subject: bug#48353: closed (Re: bug#48353: result of date is wrong if
 Etc/GMT is used)
Date: Tue, 11 May 2021 19:09:02 +0000

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Your bug report

#48353: result of date is wrong if Etc/GMT is used

which was filed against the coreutils package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 48353 <at> debbugs.gnu.org.

-- 
48353: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=48353
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Thomas Güttinger <Guettinger <at> igel.com>
Cc: 48353-done <at> debbugs.gnu.org
Subject: Re: bug#48353: result of date is wrong if Etc/GMT is used
Date: Tue, 11 May 2021 12:08:32 -0700

On 5/11/21 3:17 AM, Thomas Güttinger wrote:
> The date command inverts the sign if TZ is set with Etc/GMT.

That's a feature, not a bug. The Etc zones are documented to use the 
opposite sign, to be consistent with POSIX settings like TZ='<+05>-5'.

$ date -u; TZ='<+05>-5' date; TZ=Etc/GMT-5 date
Tue May 11 19:07:34 UTC 2021
Wed May 12 00:07:34 +05 2021
Wed May 12 00:07:34 +05 2021

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From: Thomas Güttinger <Guettinger <at> igel.com>
To: "bug-coreutils <at> gnu.org" <bug-coreutils <at> gnu.org>
Subject: result of date is wrong if Etc/GMT is used
Date: Tue, 11 May 2021 10:17:37 +0000

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The date command inverts the sign if TZ is set with Etc/GMT.

Example:
TZ=':Etc/GMT+5' date
Result:
Di 11. Mai 05:08:48 -05 2021

Tested with version coreutils-8.28 and coreutils 8.32-1.


Thomas Güttinger
Linux Developer



Guettinger <at> igel.com<http://http//mailto:%7BE-mail%7D>
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