When using a master or grandmaster clock, other devices which sync to the master’s time are called slave clocks or slave devices. A slave clock is a device that syncs with the master or grandmaster clock but does not act as a source of timing. If your network is running PTP or NTP the slave clocks will take the time from the master clock, adjust to account for network lag, and sync themselves to this time.
Used when: receiving time at a device