Here is a link from the debian archives that may help.
Mike Burns wrote:
> Hello again,
> I've noticed that every time I use The Hurd my system time/date is
> changed. It started with a few hours, then to a few days, and last time
> it was about 1993. Is this a know issue or did I do something wrong?
> -Mike Burns <email@example.com> <http://micron999.com>
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- From: Mike Burns <firstname.lastname@example.org>