With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cncGroup
Cisco Network Clock Group
1.3.6.1.4.1.9.9.121.3.2.1
The cnc group of objects providing for management of network clock distribution and NCDP entities.
Back to CISCO-ATM-NETWORK-CLOCK-MIB MIB page.
IPHost Network monitor allows you to monitor cncGroup on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.