Network Time Protocol (NTP) is a protocol that provides a reliable way of transmitting and receiving the time over TCP/IP networks. It has become the defacto standard for synchronizing Internet computers and other networked devices to Universal Coordinated Time (UTC), which is accomplished by having these devices reference a common time source – i.e., an atomic clock or a network time server (a.k.a. an “NTP server”).

Simple Network Time Protocol (SNTP) is a simplified version of NTP, which is used in cases where a full implementation of NTP is not required. Because SNTP uses the same packet format as NTP, SNTP clients can utilize NTP servers.

SNTP clocks are available in 4.0” high characters with a 4 or 6 digit display.

The clock will receive its time from a SNTP time server for accurate timekeeping, thus eliminating the need of a master clock.