D-Link DWR-932 User Manual page 24

Section 3 - Configuration
If you enabled automatically synchronize the time with a SNTP server:
Primary, Enter a 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-932 to accurately set the time.
Synchronization You can specify in hours how frequently the
Cycle DWR-932 will update the time from a SNTP server.
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D-Link DWR-932 User Manual 19