Windows Time Service, an implementation of Network Time Protocol, ensures that the clocks on all client workstations connected to a network are synchronized. Clients associated with an Active ...

IIRC windows doesn't run ntp by default, it runs some propretary w32time service instead. I think it has an ntp client built in, but I'm not sure if it can be an NTP server out of the box.

The Network Time Protocol (NTP) is an internet-based protocol that synchronizes the clocks of all devices to Coordinated Universal Time (UTC) through the use of a public-facing time server. By using a ...