Messages in this thread |  | | Date | 28 Sep 1996 11:34:00 +0200 | From | (Kai Henningsen) | Subject | Re: Filesystems patch for Daylight Savings Time |
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chaffee@odie.cs.berkeley.edu (Gordon Chaffee) wrote on 25.09.96 in <199609251809.LAA22753@odie.CS.Berkeley.EDU>:
> I looked into daylight savings time, and all daylight savings times that > I could find references to had offsets of one hour. If there are any > cases where daylight savings time has an offset different than an hour, > please let me know.
I think there are, but I have no references.
However ...
> --- linux/fs/hpfs/hpfs_fs.c.orig Tue Feb 20 00:28:13 1996 > +++ linux/fs/hpfs/hpfs_fs.c Wed Sep 25 10:52:07 1996 > @@ -321,7 +321,7 @@ > static inline time_t local_to_gmt(time_t t) > { > extern struct timezone sys_tz; > - return t + sys_tz.tz_minuteswest * 60; > + return t + sys_tz.tz_minuteswest * 60 - (sys_tz.tz_dsttime ? 3600 : 0); > }
I am obviously missing something here. How does the kernel get *any* information about the timezone I'm in?
I always thought this was completely done in libc (and /etc/timezone and ...), and the kernel only dealt in GMT (or UTC, or however you want to call it).
MfG Kai
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