With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swTimeRangeACLEntry
Switch Time Range ACL Entry
1.3.6.1.4.1.171.12.50.3.2.1
The entry maintains time-range names associated with the ACL rule table.
Back to TIMERANGE-MIB MIB page.
IPHost Network monitor allows you to monitor swTimeRangeACLEntry on D-Link device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring D-Link access points right now.