Patent ID: 6967901

Claim:
A radio-controlled timepiece comprising: a timekeeping unit that measures current time based on a reference clock; a current time display that displays the measured current time; a reception unit that receives a radio signal containing time information; a reception power supply controller that regularly operates a reception power supply that drives the reception unit; and a current time adjusting unit that adjusts the current, time of the timekeeping unit based on the time information received by the reception unit; the reception power supply controller comprising: an elapsed time detector that determines an elapsed time from when a previous radio signal was received; a schedule information setting-unit that sets schedule information defining an operating time interval at which the reception power supply is regularly operated; and a power supply controller that controls operation of the reception power supply based on the schedule information, the schedule information setting-unit changing the schedule information to schedule information with a longer operating time interval than a default setting when the elapsed time becomes greater than or equal to a set time.