I've installed Ubuntu Server (8.04) into Parallels and found that the system time/clock ran fast to the extent that it would gain hours over time.
A:
You could just want to install ntpd, it works well enough on real servers, should also do the trick on virtual ones. Another possibility is to check if Parallels has a configuration option like "Sync guest clock to host clock".
davr
2008-09-17 22:22:17