Thanks Matthew

This just happened to me - the rollover went fine, but after a reboot came
back an hour behind.

I really appreciate you taking the time to explain this.

charles

On Wed, 26 Apr 2000, Matthew Saltzman wrote:
> 
> And the last piece of the puzzle is: why didn't the update happen in
> the first place?  And the answer is: your bios clock is probably set
> to local time.  If /etc/sysconfig/clock contains "UTC=false", then
> the system assumes that the bios time is the correct local time and
> doesn't update for daylight savings.  (Actually, the rollover will
> be handled correctly, but the next time you boot, you'll be an hour
> off again.)
> 
> If this is a server (i.e., never boots anything but Linux), then 
> configure your hardware clock to use Universal time ("UTC=true" in 
> /etc/sysconfig/clock) and use 
> 
>       hwclock --utc --systohc
> 
> to set the clock.  Then the system will correctly handle daylight time
> under all circumstances.
> 
> The only reason to set your BIOS clock to local time is to support 
> Windows, which is too brain-dead to understand Universal time.  Real
> OS's always use UTC 8^).


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