VM And Phisical Envirmment

how time will work on the virtual environment . do we need to enable any tools from the VM host and the guest level for time synchronization
we have one Ad in out side virtual hosted  setup and the other two Ads on the physical environment in the LAN . it seems to  be some issue on the time . What is the best way to have the same time all the servers
curAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
It's recommended that you do the following:-

1. Enable Time Sync NTP from the Hosts to an External Time Source

2. Disable Time Sync from the VM to the Host.

3. All Windows VMs time sync with the same Active Directory Domain PDC emulator.

4. Enable Time Sync on the AD Domain with the same Time Source as 1 above.

5. Enable Linux VMs to sync with the same time source as 1 above.
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curAuthor Commented:
what is the production level Practice ? we go with the AD time as the primary source of time Syn  . I hope we set the time zone according to the windows time section  .

Can't we used the AD domain time source ? without using NTP time Sync
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Production Level Good Practice as per my post.

If you do not have an external time source (e.g. internet) then as long as your reference is the same e.g. AD but it's rather poor!
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