GNU bug report logs - #9614
date: warn on invalid TZ string (was: date ignoring wrong

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Message #23 received at 9614 <at> debbugs.gnu.org (full text, mbox):

From: Pádraig Brady <P <at> draigBrady.com>
To: Andreas Schwab <schwab <at> linux-m68k.org>
Cc: 9614 <at> debbugs.gnu.org, Sandro Santilli <strk <at> keybit.net>
Subject: Re: bug#9614: date ignoring wrong TZ values
Date: Tue, 27 Sep 2011 23:05:24 +0100

On 09/27/2011 10:47 PM, Andreas Schwab wrote:
> Pádraig Brady <P <at> draigBrady.com> writes:
> 
>>  $ TZ=NZ+1 date # No zone reported
> 
> This is undefined.  A zone name in a POSIX time zone must have at least
> three letters.

I considered that, but it seems inconsequential in this case.
I'd advise people to stay clear of these abbreviations and offsets completely.

$ TZ=GB-Eire+1 date
Tue Sep 27 22:02:49  2011
$ TZ=Japan+1 date
Tue Sep 27 21:02:54 Japan 2011
$ TZ=Japan date
Wed Sep 28 07:03:53 JST 2011

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