The digital clock synchronizes to any one satellite, receiving GPS standard time protocol via GPS tuned antenna. It is a plug and play setup, whereas no human intervention is necessary after the initial time zone, daylight savings and 12–24-hour time format setup. It is designed to be used in any application where any 4-digit atomic time of day clock is needed to be seen. It is automatically synchronized once every second. This unique design can be used in either existing buildings or new construction.