问题
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.
回答1:
What about using an NTP service to keep it sync'd?
回答2:
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".
来源：https://stackoverflow.com/questions/88289/time-synchronization-ubuntu-server-under-parallels