Abstract: A time controlled electrical switch operable in a Sabbath state and in a working day state, comprising a switching component for selectively directing the supply of electrical power, or for selectively transmitting a logical input, to a device; a memory device in which is stored local sunset information, calendar information, and predetermined rules for initiating a state changing event relating to a Sabbath state and a working day state; a logical circuit in data communication with the switching component, and a time supplying device. The logical circuit is operable to transmit a signal to the switching component for initiating the state changing event in response to an instantaneous time indicated by the time supplying device and the stored local sunset information, calendar information, and predetermined rules.

Abstract: A time controlled electrical switch operable in a Sabbath state and in a working day state, comprising a switching component for selectively directing the supply of electrical power, or for selectively transmitting a logical input, to a device; a memory device in which is stored local sunset information, calendar information, and predetermined rules for initiating a state changing event relating to a Sabbath state and a working day state; a logical circuit in data communication with the switching component, and a time supplying device. The logical circuit is operable to transmit a signal to the switching component for initiating the state changing event in response to an instantaneous time indicated by the time supplying device and the stored local sunset information, calendar information, and predetermined rules.