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  • From: Jeremy Kolb <jkolb AT brandeis.edu>
  • To: sm-discuss AT lists.ibiblio.org
  • Subject: Re: [SM-Discuss] daylight savings?
  • Date: Mon, 12 Apr 2004 13:07:06 -0500

I don't have windows, linux is the only os I boot into. I'm using UTC
time and hwclock and localtime both report the correct values so I'm not
sure why it never adjusted.

Jeremy


On Mon, 2004-04-12 at 12:45, Casey Harkins wrote:
> Are you dual-booting with Windows? The ideal situation (in my opinion) is
> to keep your system clock in UTC time. Linux will then convert between UTC
> and your timezone automatically. This should handle daylight savings
> gracefully.
>
> Windows on the otherhand, insists on storing the system time in the local
> time format. Linux will happily let you do this, but then the time needs
> to be adjusted at daylight savings time. Windows will do this for you
> automatically, and there may be Linux applications out there to do this
> automatically as well. However, if you are dual-booting, there is no way
> for either OS to know if the other has already adjusted, so you'd better
> only have one or the other set up to automatically adjust.
>
> Personally, I rarely boot into windows and don't really care if the time
> is off. So I keep my system time stored in UTC, and have Windows set up to
> *not* adjust for daylight savings automatically. The time on the Linux
> side is always correct, while the time on the Windows side is always
> showing the UTC time.
>
> The /etc/sysconfig/hwclock file sets up how Linux should use the system
> clock (UTC=yes or UTC=no). The file /etc/localtime should be a symlink to
> the correct timezone file.
>
> casey@brak:~$ cat /etc/sysconfig/hwclock
> # does the hardware clock store the time in UTC
> UTC=yes
>
> casey@brak:~$ ls -l /etc/localtime
> lrwxrwxrwx 1 root root 30 Oct 30 16:10 /etc/localtime ->
> /usr/share/zoneinfo/US/Central
>
>
> Hope this helps.
>
> -casey
>
>
> On Mon, 12 Apr 2004, Jeremy Kolb wrote:
>
> > eastern
> >
> > On Mon, 2004-04-12 at 11:21, Robert Helgesson wrote:
> > > On Mon, Apr 12, 2004 at 10:36:52 -0500, Jeremy Kolb wrote:
> > > > My computer never adjusted for daylight savings. How do I set it up
> > > > to do this, it's done it in the past. Also now whenever I use rdate
> > > > it shows "pre-savings" times on the servers. Is why is this? Curious.
> > >
> > > Which timezone are you in?
> >
> _______________________________________________
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> SM-Discuss AT lists.ibiblio.org
> http://lists.ibiblio.org/mailman/listinfo/sm-discuss

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