PROBLEM TO BE SOLVED: To provide an electronic sphygmomanometer capable of clocking an accurate absolute time regardless of environment of receiving radio waves, and securing reliability of measurement results to be stored besides the accurate absolute time.SOLUTION: When the time length from a reference time point (a reference time) TR0 to a relative time TR exceeds a preset prescribed threshold, the electronic sphygmomanometer arouses reception of a radio wave, when receiving a prescribed input operation in response to the arousal, receives a standard radio wave, corrects an absolute time on the basis of the received time information, and corrects the absolute time in a measurement result that an EEPROM stores, on the basis of the corrected absolute time and the relative time.