0 Synchronize System Time and Date

Ubuntu allows you to manually set your system time and date, but you can also activate the Network Time Protocol (NTP) support in the system to automatically sync them with the Internet time servers as follows.

1. Go to System > Preferences > Time & Date.
2. Click the lock icon to change settings.
3. Select your time zone from the list.
4. If the configuration type is "manual", change it to auto synchronize with the Internet server. (In Ubuntu 11.04, the default is set to auto.)
5. Click "Install NTP support" when prompted with a dialog box. (Applicable to Ubuntu 10.10 & 10.04)
6. Tick the time server(s) nearer to you. (Applicable to Ubuntu 10.10 & 10.04)
7. Click the Close button.

When you next boot up the system with the Internet connection, your system clock will then be synced with the Internet time servers.