Digicom 3G Router AM11 User Manual page 50

System Time
Time Zone
Select a time zone where this device locates.
Auto-Synchronization
Select the "Enable" item to enable this function.
Time Server
Select a NTP time server to consult UTC time
Sync with Time Server
Select if you want to set Date and Time by NTP Protocol.
Sync with my PC
Select if you want to set Date and Time using PC's Date and Time
Click on "Save" to store your setting or "Undo" to give up.