Managing time synchronization for virtual domain controllers running on Microsoft Hyper-V

For virtual domain controllers running on Microsoft Hyper-V, take care of the following:

• Make sure that the virtual domain controllers synchronize their clocks with the internal clocks of the Hyper-V hosts.
• Ensure that the hardware clock on all Hyper-V hosts is correct.
• Configure reliable NTP sources on all Hyper-V hosts, or join the Hyper-V hosts to an Active Directory forest, where the domain controller holding the PDCe FSMO role correctly synchronizes time with a reliable source.