Multi-time zoned digital clock

A digital clock capable of displaying the time in any one of four different time zones and in any one of four different language numerals is presented. Two different implementations of the clock are reported. The first implementation, designed for four time zones, makes use of counters, EPROMs, and multinumeric display decoders described by K.B. Balasubramanian and P.K. Rajan (1989). The second one is a microprocessor based implementation providing the display of 32 time zones in 32 display formats.<
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