Anyone installing a new DC should synchronize it with an external time source. It is advisable to use a time server on the Internet. The following instructions synchronize the DC with the NTP server of the Physikalisch Technische Bundesanstalt in Braunschweig.
Simply copy the text into a text file and save it with the extension .REG, then execute this file and merge it with the registry:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\W32Time\Parameters]
"Type"="NTP"
"NtpServer"="ptbtime1.ptb.de,0x1"
Finally, restart the "Windows Timer" service:
net stop w32time && net start w32time
