D-Link DWR-933 User Manual page 58

Section 3 - Configuration
If SNTP is enabled, you will see these options:
Primary, Secondary
Enter a SNTP server address which will be used to
and Tertiary SNTP
synchronize the router's system time and date.
Server
Time Zone
Enter the time zone where you are currently using
the DWR-933 to correctly set the time offset.
Synchronization Cycle
You can specify in hours how frequently the
DWR-933 will update the time from a SNTP server.
Click Apply to save changes.
D-Link DWR-933 User Manual 54