Network Time Protocol (NTP) is a networking protocol that keeps computers, servers, and connected devices synchronized to a common time source. It works by allowing devices to communicate with time servers and adjust their internal clocks based on the difference between their local time and the reference time. NTP can account for network delays and gradually correct clock differences, helping maintain consistent timestamps across distributed systems.
For example, an online banking system can use NTP to keep servers synchronized so transactions receive accurate and consistent timestamps. This is important for event logging, security, authentication, data synchronization, and troubleshooting. NTP is widely used in enterprise networks, cloud infrastructure, telecommunications, industrial systems, and Internet-connected devices.