Timezone weirdness on dual boot machine

[Matthew Saltzman]

On Tue, 31 Oct 2006, David Scriven wrote:

> I'm running FC6 & Win XP on a dual boot machine - Intel Core 2 Duo, 
> Intel 965 chipset
>
> There a weird situation with the clock which shows up when I go from FC6 
> to Win XP and back. If the clock is correct in FC6 and you go to XP the 
> clock is eight hours fast. If it is then corrected and you go back to 
> FC6, it is eight hours slow. The zones are set correctly for both 
> systems - Pacific Time zone = GMT-8, so my guess is that FC6 is not 
> correctly interpreting the timezone info when reading the system clock.
>
> Anybody else come across this? - Is there something that I should set 
> (or check whether it's been set)?

What's in /etc/sysconfig/clock?

If UTC=true, then Linux will store UTC (GMT) in the hardware clock on 
shutdown.  Windows only understands local time in the hardware clock. 
The Time Zone tab of system-config-date has a checkbox to set UTC or local 
time.

Note that having the hardware clock set to local time on a dual-boot 
machine can be annoying around the daylight savings changes.

-- 
 		Matthew Saltzman

Clemson University Math Sciences
mjs AT clemson DOT edu
http://www.math.clemson.edu/~mjs