The NTP (Network Time Protocol) is a network protocol for clock synchronization. You may use the NTP to synchronize the time. Check more detailed information below.

Applies to: All Reolink cameras and NVRs except battery-powered cameras.

Since the NTP use the UDP port 123 by default, you may use it to verify whether the UDP port is enabled or not according to the synchronization result.

Note: Reolink battery-powered cameras do not have the NTP feature as these cameras will synchronize date and time automatically once it is connected to the internet.