Most companies would be best served by implementing a Stratum 1 NTP server synced to GPS to ensure that devices on the network are properly synchronized, maintain accurate time behind a firewall, and comply with timekeeping regulations. ...
What is NTP server used for?
Network Time Protocol (NTP) is a protocol used to synchronize computer clock times in a network. It belongs to and is one of the oldest parts of the TCP/IP protocol suite. The term NTP applies to both the protocol and the client-server programs that run on computers.
Why is NTP important?
The Network Time Protocol (NTP) was introduced to provide just such a mechanism. It provided complex algorithms to maintain a high degree of time synchronization of computers on a network. Time clients obtain highly precise timing information from a time server in order to calibrate their own internal system time.