D-Link DWR-932C User Manual page 26

Section 3 - Configuration
If you enabled automatically synchronize the time with an SNTP server:
Primary, Enter an SNTP server address which will be used to
Secondary, and synchronize the router's system time and date.
Tertiary SNTP
Server
Time Zone Enter the time zone where you are currently using
the DWR-932C to accurately set the time.
Synchronization You can specify in hours how frequently the
Cycle DWR-932C will update the time from an SNTP
server.
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D-Link DWR-932C User Manual 21