NTP stands for Network Time Protocol. It is a networking protocol used for synchronizing the clocks of computer systems over a network. NTP allows computers to maintain accurate time by communicating with a reference time source, typically a highly accurate atomic clock or a time server connected to one.

The primary function of NTP is to ensure that all devices within a network have the same time and are synchronized with the reference time source. This synchronization is crucial for various applications and systems that rely on accurate timekeeping, such as transaction processing, logging, network security, and distributed file systems. Its on UDP port 123