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To: cygwin <cygwin@cygwin.com>
From: Ken Brown <kbrown@cornell.edu>
Subject: Time zone bug
Message-ID: <31d25ae6-b4f1-54cf-5582-810eeedcd8d3@cornell.edu>
Date: Sun, 30 Apr 2017 17:37:00 -0400
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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@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).

Ken

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