clock differs between dom0 and domU

[Petar Bogdanovic <list+2007%smokva.net@localhost>]

Hi,

is time synchronisation only a dom0 thing? I always thought so until I
saw this:

        $ ssh dom0 date; ssh domU date
        Mon Feb 25 01:50:56 CET 2008
        Mon Feb 25 01:52:33 CET 2008


Aren't they using the same system clock?


Thanks,

Petar