From: DJ Delorie <dj AT delorie DOT com>
Subject: Re: B20.1: Still problems with mktime()
28 Jan 1999 11:09:46 -0500
Message-ID: <36B08BCA.6832956F@delorie.com>
References: <3 DOT 0 DOT 5 DOT 32 DOT 19990127142805 DOT 033256d0 DOT cygnus DOT gnu-win32 AT localhost>
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Henrik Frystyk Nielsen wrote:
> 
> It seems to forget to adjust for timezone. This has been discussed before:
> 
>         http://www.egroups.com/list/gnu-win32/mg1292806488.html
> 
> where it says:
> 
>         The current implementation (B19) of mktime (time.h)
>         incorrectly assumes that the given argument of the
>         type "struct *tm" represents GMT, and not local time
>         as it is supposed to do. It also ignores the field tm_isdst.
> 
> and it also proposes a fix. Has this fix been applied or is something else
> wrong?

If you're using NT, it's a bug in NT.  Go to the timezone setup in NT
and toggle the "automatically adjust for dst" flag.  You might need
to adjust your clock time when you do that.