GNU bug report logs - #43828
invalid date converting from UTC, near DST

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From: Bob Proulx <bob <at> proulx.com>
To: Martin Fido <mart <at> fidolab.org>
Cc: 43828 <at> debbugs.gnu.org
Subject: bug#43828: invalid date converting from UTC, near DST
Date: Wed, 28 Oct 2020 23:10:39 -0600

Martin Fido wrote:
> I have tzdata version 2020a:
> 
>     $ apt-cache policy tzdata
>     tzdata:
>       Installed: 2020a-0ubuntu0.16.04
>       Candidate: 2020a-0ubuntu0.16.04
>     ...
> 
>     $ zdump -v Australia/Sydney | grep 2020
>     Australia/Sydney  Sat Apr  4 15:59:59 2020 UT = Sun Apr  5 02:59:59 2020 AEDT isdst=1 gmtoff=39600
>     Australia/Sydney  Sat Apr  4 16:00:00 2020 UT = Sun Apr  5 02:00:00 2020 AEST isdst=0 gmtoff=36000
>     Australia/Sydney  Sat Oct  3 15:59:59 2020 UT = Sun Oct  4 01:59:59 2020 AEST isdst=0 gmtoff=36000
>     Australia/Sydney  Sat Oct  3 16:00:00 2020 UT = Sun Oct  4 03:00:00 2020 AEDT isdst=1 gmtoff=39600

I see this is Ubuntu 16.04.  I found a 16.04 system and I was able to
recreate this exact problem there.  However trying this on an 18.04
system and it is no longer an invalid date.

Bob

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