Precision Time Protocol (PTP) is a network protocol used to synchronize clocks across computer networks. PTP is designed to provide very accurate time synchronization, and is often used in scientific and industrial applications where precise timekeeping is critical.
In their technical blog, the Meta company’s developers explain very clearly why this might be necessary, and a little less clearly how they implemented such synchronization, given that the existing industrial equipment itself creates a delay of several hundred nanoseconds due to physical reasons.
It’s about time. In some industries, PTP has been used for a long time.
Cellular operators, exchanges, or other organizations related to trading. Many have switched to PTP and there are problems when trading with those who are still on NTP.