With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cntpPeersLeap
cntp Peers Leap
1.3.6.1.4.1.9.9.168.1.2.1.1.7
Two-bit code warning of an impending leap second to be inserted in the NTP timescale of the peer.
Back to CISCO-NTP-MIB MIB page.
IPHost Network monitor allows you to monitor cntpPeersLeap on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.
