PURPOSE: To enhance the accuracy of the electronic clock by presetting a frequency- dividing circuit periodically in accordance with the output of the temperature detection controlling the pulse-width of an indication driving pulse.

CONSTITUTION: By a sampling signal of a prescribed time width of the shift output of a shift register 10 corresponding to the counted value of a watch counting circuit 5, a switch N1 is made conductive sequentially and an information corresponding to the temperature detected by a temperature detecting circuit formed of a thermistor 26 and a comparator 14, etc. is latched by latch circuits 15W18. By these latch outputs, the output of AND circuits 191W194 is controlled, the driving pulse width is changed according to the temperature through the intermediary of a pulse width controlling circuit 20, the driving excution voltage of a matrix liquid-crystal indicating body 9 is controlled, and thus an indication with an excellent contrast characteristic is performed. Meanwhile, by the output changing with a prescribed detection temperature by the circuit 191 as a boundary, the term of set and reset of FF3 is changed, the frequency-dividing circuit 4 is preset periodically, the number of the frequency-dividing pulse for the watch is compensated according to whether it is above or below the prescribed temperature, and thus time counting of high accuracy is performed.