I am having an issue with one Windows 7 VM where sometimes the time appears to be drifting. It will be a few minutes off from what it is supposed to be.
I installed a 'Net Time' client to get this to sync up with an internet time server and it was working fine for the most part. But the host was rebooted over the weekend and the VM again had the wrong time until someone logged into it to check.
What is strange is that I have other Windows 7 VMs which don't appear to have this problem - it is only this one VM but I'm not sure what else to check. The Windows time setting seem correct.
The VM host itself has a time that is way off - I think it has never been configured. Before any change I want to make sure it would even have an effect in this case.