You need to pick the time zone of your physical location and indicate the presence of an eventual NTP server.
Time Zone | Europe/Paris |
Ntp Server address (optional) | ntp.myco.com |
In the list, select the time zone and then the city closest to you.
Eventually, you can enter the name of a NTP (Network Time Protocol) server, which automatically sets up and checks your clock periodically. If your company has its own server, use it. Otherwise, you can find a public server, e.g.: http://www.eecis.udel.edu/~mills/ntp/clock2.htm