网络时间协议,(一个使网络上的计算机时间同步的协议)
Network Time Protocol (NTP) A {protocol} built on top of {TCP/IP} that assures accurate local timekeeping with reference to radio, atomic or other clocks located on the {Internet}. This protocol is capable of synchronizing distributed clocks within milliseconds over long time periods. It is defined in {STD} 12, {RFC 1119}.