Configuring the Date, Time, Timezone and NTP servers
From TBwiki
Applies to version(s): v2.9, v2.10
1-Click Services in the navigation panel.
2-Select the Timezone where the system is installed.
3-Select NTP in Time Setting. The other option is to set the date manually. If so then select MANUAL and you will need to enter the date and time.
4- Click Save.
5-Change the NTP servers if needed. Default are Centos NTP servers. Internet access is required to sync with external NTP servers.