Date: Mon, 5 Apr 1999 01:52:05 +0100 From: Mark Ovens <marko@uk.radan.com> To: Greg Lehey <grog@lemis.com> Cc: flygt@sr.se, FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Timezone question Message-ID: <19990405015204.A257@marder-1.localhost> In-Reply-To: <19990405095153.I2142@lemis.com>; from Greg Lehey on Mon, Apr 05, 1999 at 09:51:53AM %2B0930 References: <19990404044642.A60884@sr.se> <19990404132026.T2142@lemis.com> <19990404125723.A61426@sr.se> <19990405010416.L299@marder-1.localhost> <19990405095153.I2142@lemis.com>
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On Mon, Apr 05, 1999 at 09:51:53AM +0930, Greg Lehey wrote:
> On Monday, 5 April 1999 at 1:04:17 +0100, Mark Ovens wrote:
> >
> > Does FreeBSD update the RTC for Daylight Saving?
>
> You mean the clock? No.
>
> > I only ask because my machine was booted to FreeBSD when the clocks
> > changed and the next day FreeBSD was showing the correct time. When
> > I rebooted the RTC was showing the correct time as well.
>
> I'm not sure what you mean by RTC. If you mean the CMOS clock,
Yes, I do. Am I getting my terminology mixed up here? RTC == "Real
Time Clock". I've always known RTC to be a synonym for CMOS clock.
> it *should* be showing UTC. UNIX doesn't use local time, it converts the
> time representation to wherever you happen to be. That's why you can
> use the TZ environment variable to display time anywhere in the world.
>
> Having said that, FreeBSD has a kludge for coexisting with Microsoft
> on the same machine: it's called adjkerntz, and it does just about
> what you're describing, so you probably have it running. You can
> check if it's running with ps(1). Unless you happen to run Microsoft
> on the same machine, you can safely remove it.
>
adjkerntz is running (I have M$ on this machine). I've just rebooted
and gone into BIOS setup to confirm the CMOS clock time and it is
showing the correct time. Since you say FreeBSD doesn't change the
CMOS clock I think the BIOS must take care of the change to DST
and since 95 & NT are both set to *not* adjust for DST everything
is fine.
I don't have a problem, everything is working, I was just curious
*why* it was working.
> > FWIW, both W95 & NT also both showed the correct time (probably
> > because the RTC was correct & both Winblows had "Automatically
> > adjust for DST" *unchecked*) although 95 correctly thinks the TZ
> > is GMT, Daylight Saving but NT thinks it is just GMT.
>
> You'd think they'd get these things right, wouldn't you?
>
Now don't be silly Greg, this is M$ we're talking about ;-)
BTW, In a previous post of yours in this thread you mentioned about
Windows not knowing about the TZ in Northern Territories, which
from then on you referred to as NT. The last sentence (I've deleted
the message so I can't quote it verbatim) read something like
"...obviously Windows doesn't know about NT". I don't know if the
double entendre was intentional but it was highly amusing either
way :-)
> Greg
> --
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--
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_______________________________________________________________
Mark Ovens, CNC Apps Engineer, Radan Computational Ltd. Bath UK
CAD/CAM solutions for Sheetmetal Working Industry
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