The cluster Timeserv service is used to synchronize time in the cluster, but does NOT provide for a real-time time source.
To replace the cluster Timeserv service:
1. Use the Cluster Administration tool to set the Time Service resource to offline.
2. Delete the Time Service resource.
3. Move the cluster group on the other node.
4. Delete the Timeserv key in the following registry key on both nodes:
5. Install the optional time service and configure it's .ini file.