Network Time Protocol (NTP) synchronizes computer system clocks across the Internet.
Configure NTP settings to synchronize the server clock with an NTP server, or manually
set the system time. Specify the format to display the date and time in.
Procedure
Go to Administration → System Settings → Time.
Set the system time.
To synchronize with an NTP server, select Synchronize
appliance time with an NTP server and then specify the
domain name or IP address of the NTP server.
To manually set the system time, select Set time
manually and then select the date and time or select the
time zone.
To display the date and time in another format, select the format from the Date and time format drop-down list.