1. Navigate to Services | NTP. You should be on the default Settings tab, as shown in the following screenshot:

2. In the Interface list box, select WAN as the interface on which to listen.
3. Click on the Add button to add a new pool or server.
4. Type 0.pool.ntp.org in the hostname edit box for the new server. Leave the Is a Pool checkbox checked.
5. Repeat steps 3 and 4 for 1.pool.ntp.org, 2.pool.ntp.org, and 3.pool.ntp.org.

We have added several pools to our NTP configuration. The system will now try to find the closest available servers for us.