The MC4181-388 Series World Time Zone Master Clocks are calendar programmable solid state masterclocks used for synchronizing AE Series Digital World Time Clocks according to their specified world timezones. Offsets from Greenwich Mean Time (GMT) and seasonal changes are easily programmed for eachworld time zone. An optional GPS Antenna/Receiver provides accurate time by locking the MC4181-388Master Clock to the NIST traceable time (atomic clock) sent by the GPS system.
