Provided is an electronic device includes an oscillator circuit that outputs a clock signal of predetermined frequency, a clock circuit that counts date and time in accordance with input of the clocksignal, a temperature sensor that measures a temperature relating to a change of the predetermined frequency, a receiver that receives a radio wave from a positioning satellite, and a first processorand/or a second processor. The first processor and/or the second processor estimates an amount of time count difference in date and time counted by the clock circuit on the basis of a history of temperatures measured by the temperature sensor, and combines date and time counted by the clock circuit, the estimated amount of time count difference, and part of date-and-time information obtained froma radio wave received by the receiver to identify current date and time.