PURPOSE:To increase the operationability by enabling the time set without performing the key operation designating am and pm, through automatic storage of the signal indicating am and pm and time set time. CONSTITUTION:The system consists of the RAM 12-A storing the count time, key input section 1 to set the time, RAM 12-X storing the set time by key, and means 10 in which the set time is within a given time from the count time of RAM 12-A and the signal indicating am and pm of the count time is controlled by comparing 15 the set time and the count time. Further, in case of time set, the set time and the signal indication am and pm from the means 10 are inputted to RAM 12-X automatically.
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