Re: time zone and UTC issue [rant]
On Wed, 2012-11-28 at 19:17 +0100, Ralf Mardorf wrote:
> On Wed, 2012-11-28 at 19:12 +0100, Ralf Mardorf wrote:
> > On Wed, 2012-11-28 at 11:48 -0600, green wrote:
> > > Ralf Mardorf wrote at 2012-11-28 11:04 -0600:
> > > > If I save BIOS settings as a file and the hwclock is set to UTC, the
> > > > files don't get the German time. The BIOS is the BIOS, it's neither
> > > > Windows, I don't use Windows, but nor the BIOS is Linux, so Linux can't
> > > > "translate" UTC to local time, when I save BIOS settings.
> > > >
> > > > Under Linux I never noticed any disadvantage, when the hwclock is set to
> > > > local time. Why should there be issues?
> > >
> > > Linux uses UTC. Local time is always changing based on time zones and
> > > daylight saving time. Using UTC for the hardware clock (BIOS clock) is the
> > > correct way and works. If you are having trouble with using UTC for the
> > > hardware clock, then it is probably because (1) Windows (if you dual boot) is
> > > changing the time, or (2) you have (or someone/something has) configured
> > > Linux to use local time for the hardware clock, which is possible though not
> > > recommended.
> >
> > In the sentence from me above I've wrtten taht I don't use Windows.
> >
> > I haven't written that I would get issues when using UTC, but I also
> > don't get issues, when I'm using local time.
> >
> > Nobody did explain how the BIOS should save files with German time, if
> > the clock is set to UTC.
> >
> > Again, some people have a BIOS and do use it ;). Some people save BIOS
> > settings to e.g. USB. No Linux, no Windows, it's just the BIOS.
> >
> > If the clock does use local time, then the time for all BIOS and all
> > Linux files are ok.
> >
> > If the clock is set to local time, then the time for the BIOS files is
> IS NOT SET oops, a typo ;)
> > wrong, only the files for Linux are ok.
> >
> > So, what is better?
> >
> > All files have the wanted, correct time or just Linux files have the
> > correct time?
> >
> > Don't mention Windows again and again.
> >
> > Do you have a BIOS or have you some magic Linux replacement for the
> > BIOS?
> >
> > Regards,
> > Ralf
>
PS: Btw. after statartup I run ntpdate, time for Linux always is
correct, even if I would use something evil, that would set the time
wrong, before startup.
The BIOS is the BIOS, I can't use ntp or manually run sntp, ntpdate or
what ever.
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