Re: help me understand timezones
On Tue, Feb 17, 1998 at 02:22:38PM -0800, Luiz Otavio L. Zorzella wrote:
>
> Hi,
>
> I had several problems with timezones, and for many weeks my clock was
> wrong because of daylight savings (even though it said it changed the
> clock at that time, looks like it lost this information at the first
> boot), and I had no time to dig into this, untill finally I just
> changed the BIOS clock by hand...
>
> But I wanted to understand how does the timezones work, and I went to
> /usr/doc/timezones, and found the glibc docs, instead of timezone's!
That's because timezones is part of glibc.
> Well, in my system:
>
> $ date
> Tue Feb 17 14:09:22 PST 1998
> $ date -R
> Tue, 17 Feb 1998 14:14:47 -0800
>
> nr# dpkg -l timezone
> ic timezone 7.55-2 Data files needed to set your local time
>
> My questions are:
>
> 1) Is this correct for CA (-0800, at daylight savings period)?
Yes.
> 1) At the daylight savings dates, is timezone supposed to change the
> BIOS clock, or should it leave the BIOS clock unchanged, and
> "transform" BIOS time in PST time? Will it change automatically now,
> when the daylight period ends?
You don't need to worry about it. Linux should automatically correct
the clock.
> 2) Is it better/worse/possible to have the BIOS clock set to GMT, and
> let timezone transforms it? In this case, how one can see the BIOS
> clock time?
>
> 3) should I upgrade timezone?
No, it was replaced by timezones.
Hope this helps,
Adam Klein
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