ntp: ntp (Network Time Protocol daemon) ntp: ntp: The Network Time Protocol (NTP) is used to synchronize the time of a ntp: computer client or server to another server or reference time source, ntp: such as a radio or satellite receiver or modem. It provides client ntp: accuracies typically within a millisecond on LANs and up to a few tens ntp: of milliseconds on WANs relative to a primary server synchronized to ntp: Coordinated Universal Time (UTC) via a Global Positioning Service ntp: (GPS) receiver, for example. ntp: ntp: