Fully electronic kraftfahrzeuguhr with digital - display

摘要

A fully electronic car clock with digital display is provided in which the counter circuit of the car clock is connected to a car battery through an engine key switch to be driven therefrom, and the clock display is interlocked with the engine key switch so as to be energized or deenergized in accordance with the ON-OFF position thereof in order to avoid draining the battery. A method of time setting the car clock is also proposed.