bug#641: format-time-string %Z does not work, starting with Emacs 22.2

[Eli Zaretskii]

> Date: Thu, 07 Aug 2008 20:51:11 +0200
> From: "Lennart Borgman (gmail)" <lennart.borgman@gmail.com>
> CC: Ted Zlatanov <tzz@lifelogs.com>, bug-gnu-emacs@gnu.org
> 
> Eli Zaretskii wrote:
> >> From: Ted Zlatanov <tzz@lifelogs.com>
> >> Date: Thu, 07 Aug 2008 08:20:46 -0500
> >>
> >> We could build a database of known Microsoft timezones and map them to
> >> ISO timezones.  It has to be done just once and then updated very
> >> rarely--timezone names don't change often.  The full list of timezones
> >> is in 
> >>
> >> HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones 
> > 
> > I already mentioned this possibility in an earlier message here.  The
> > problem is that what you actually see in `tzname' could be a localized
> > name, not the US English name.  So unless someone finds (or crafts) an
> > exhaustive list of all TZ names both in English and in any localized
> > language to which each one could be translated by Windows, this will
> > work only on some machines.
> 
> 
> How many time zones are there?

I see 87 on my machine.