Possible Duplicate:
How to set Ubuntu to synchronize my clock with a time server?
How to sync time in Ubuntu 10.10 (a GUI solution if possible)?
How to sync time in Ubuntu 10.04 Server (a console solution if possible)?
Possible Duplicate:
How to set Ubuntu to synchronize my clock with a time server?
How to sync time in Ubuntu 10.10 (a GUI solution if possible)?
How to sync time in Ubuntu 10.04 Server (a console solution if possible)?