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Date:      Wed, 11 Dec 2002 13:39:16 +1100
From:      Mark.Andrews@isc.org
To:        Evren Yurtesen <eyurtese@turkuamk.fi>
Cc:        freebsd-stable@FreeBSD.ORG
Subject:   Re: (2) timezone bug? 
Message-ID:  <200212110239.gBB2dGtB046851@drugs.dv.isc.org>
In-Reply-To: Your message of "Wed, 11 Dec 2002 03:56:36 %2B0200." <Pine.A41.4.10.10212110355500.108108-100000@bessel.tekniikka.turkuamk.fi> 

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> and why do I need to tell that?

	Because you want to have the current time in both Windows and
	FreeBSD and Windows assumes that the CMOS clock is a wall clock.

> cant the tzsetup program set it automatically?

	That's not tzsetup purpose.  It assumes the kernel is returning
	UTC and arranges for local time to be returned based on that.

	Teaching the kernel that the cmos clock is running with wall clock
	time is adjkerntz purpose.

> Is it enough if I only create this file?

	No.  You will also need to inform the kernel and reset the cmos
	clock to wall clock time.  I suggest that you read the manual
	pages for tzsetup and adjkerntz.

	Also you need to take care the first time you re-boot into windows
	after a daylight savings switch.

	Mark

> Evren
> 
> On Wed, 11 Dec 2002 Mark.Andrews@isc.org wrote:
> 
> > 
> > 	It sounds like you have not told the system that you are using
> > 	wall clock time and it defaults to using UTC.
> > 
> > 	/etc/wall_cmos_clock
> > 
> > 	Mark
> > 
> > > I wonder if this is a bug in the tzsetup system...
> > > I set my timezone and everything works fine although it says EEST when I
> > > am used to see GMT+2.
> > > But the main problem is that when I set the timezone then 2 hours are
> > > substracted from my bios clock after I use ntpdate and operating system 
> > > shows correct time by adding 2 hours. Now this is not a big problem if my
> > > computer clock is wrong normally but I sometimes boot to windoze and it
> > > shows 2 hours early =) everytime I boot to FreeBSD and back to Windoze.
> > > 
> > > What do you say? this is a bug or? How do I prevent this from happening
> > > all the time?
> > > 
> > > Evren
> > > 
> > > 
> > > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > > with "unsubscribe freebsd-stable" in the body of the message
> > --
> > Mark Andrews, Internet Software Consortium
> > 1 Seymour St., Dundas Valley, NSW 2117, Australia
> > PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews@isc.org
> > 
> 
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-stable" in the body of the message
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews@isc.org

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