Setup an authoritative time server on your Windows Domain Controller.
Follow the steps below to setup an authoritative time server on your Windows Domain Controller:
Open command prompt on the domain controller and type the following commands:
C:\> net stop w32time
C:\> w32tm /config /syncfromflags:manual /manualpeerlist:"ca.pool.ntp.org"
C:\> w32tm /config /reliable:yes
C:\> net start w32time
C:\> w32tm /query /configuration
You should see the time server name under TIME PROVIDERS