A talking clock calculator incorporates a variety of time representing functions (or calender function), and is particularly characterized by means for representing the date information.This apparatus is capable of verbally outputting the month and date by operating the DATE key in the Normal mode, and also the year, month, and date, by operating the DATE key in the Set mode. The verbal output can be made as short as possible in the simplest sentence for easier recognition or the year information can also be verbally represented, whereby the apparatus can be conveniently used as a "fully automatic calender". Since voice data can be used by the clock and the calculator, there is no need for providing each with own voice data independently.