Check manual page of systemtime

Synchronization of Operating System Time

Distribution Official part of Checkmk
License GPLv2
Supported Agents Windows vSphere
This check is a simple check of the correct setting of the current system time of the target host. It simply compares the local time on the monitoring server with that measured by the agent on the target host. It is not very accurate since it does not account for the systematic time delay between the output of the time by the agent and the actual processing of that data by Checkmk.

Its advantage however, is that it works on any Windows or ESX host - regardless of the method used to synchronize the time.

Levels can be set for making the check warn/crit if the time difference exceeds the configured limits.

Discovery

One service is created for each host supporting this check.