Network Time Protocol
Network Time Protocol (NTP) is a networking protocol used to synchronize the clocks of computer systems over packet-switched, variable-latency data networks. It is designed to achieve high accuracy and reliability in timekeeping, typically within milliseconds over the public internet and microseconds in local networks. NTP uses a hierarchical, semi-layered system of time sources, with stratum levels defining the distance from a reference clock.
Developers should learn and use NTP when building systems that require precise time synchronization, such as financial trading platforms, distributed databases, logging systems, and security applications where timestamps are critical. It is essential in environments like cloud computing, IoT networks, and telecommunications to ensure consistency across devices and prevent issues like data corruption or security vulnerabilities due to time drift.