Short for Network Time Protocol
, an Internet standard protocol
(built on top of TCP/IP
) that assures accurate synchronization to the millisecond of computer clock times in a network of computers. Based on UTC
, NTP synchronizes client workstation
clocks to the U.S. Naval Observatory Master Clocks in Washington, DC and Colorado Springs CO. Running as a continuous background
client program on a computer, NTP sends periodic time requests to servers
, obtaining server time stamps and using them to adjust the client’s clock.
The latest version of NTP is defined in RFC 1305.