From: John Keeping <john@keeping.me.uk>
Date: Mon, 08 Feb 2016 14:33:17 GMT
Subject: Timezone with DATE_STRFTIME
Message-ID: <20160208143317.GN29880@serenity.lan>

I have just noticed that with DATE_STRFTIME, the timezone in the output
is likely to be incorrect.

For all other time formats, we print the string ourselves and use the
correct timezone from the input, but with DATE_STRFTIME strftime(3) will
always use the system timezone.