Re: [Xen-users] Xen guests clock is exactly 2 hours before dom0 time

[John Haxby <john.haxby@xxxxxxxxxx>]

Ralf Hornik Mailings wrote:
> Dom0 uses ntp for time syncronisation. I set the time on my guests 
> manually but after reboot any machine (Windows server, XP, Freebsd, 
> even PV Machines like ubuntu) all run local time - 2 hours.
> /proc/sys/xen/independent_wallclock is set to 0 so actually the time 
> should be set by dom0...(?)
> Any ideas, what this could be?
I would guess that you've got the system clock set to +0200 instead of 
UTC.  Traditionally, unix has run with the system clock at UTC and all 
timestamps and so on are seconds since the 1st January 1970, 00:00:00 
UTC.  These days it's quite possible to set the system time (the real 
time clock) to something other than UTC and the system start-up looks 
after making sure the kernel's time is UTC.
Somewhere along the lines, I think this has broken down with your 
machine.  It looks as though system time is actually +0200 in dom0.  I'd 
start by looking closely at the output of date in dom0 -- is it CEST?
jch

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