Abstract: A timepiece including a GPS receiver that receives a radio wave from a positioning satellite, a time counter that performs a time count operation, and a processor, the processor being configured to: corrects a time count of the time counter in accordance with time and date information included in the radio wave from the positioning satellite received by the GPS receiver; acquires a temperature in the timepiece; acquires a voltage of a battery; and controls a receive operation at the GPS receiver in accordance with the temperature and the voltage.

Abstract: A smartphone includes at least one processor. The processor acquires, from a time display device, log data of the time display device, and determines, based on the acquired log data and with an input command from a user received by the smartphone as a trigger, a status of whether the time display device is abnormal.

Abstract: A device having: one or more processors for determining an elapsed time since a correction of a calculated date and time; estimate a degree of deviation included in the calculated date and time, based on the elapsed time; and in response to estimating the degree of deviation to be equal to or smaller than a predetermined range, execute a method by which the one or more processors: generate an expected code sequence of a code sequence to be received from a satellite; control a satellite radio wave receiver to receive the code sequence; determine whether there is a match between the expected code sequence and the code sequence; in response to determining that there is a match, obtain a present date and time information represented by the expected code sequence; and correct the calculated date and time, based on the present date and time information obtained.

Abstract: An electronic timepiece, including: a receiver which receives broadcast radio waves including time information; a communicator which carries out wireless communication by establishing communication connection with an external device which is set; a processor; and an operation receiving unit which receives an input operation via an operating member, wherein in a case where a predetermined input operation corresponding to a command for obtaining information regarding a present time is received via a predetermined operating member, the processor selects a first information obtaining operation by which the information is obtained from the external device which is set via the communicator or a second information obtaining operation by which the information is obtained based on the broadcast radio waves received by the receiver according to whether a setting regarding the external device exists.

Abstract: A timepiece including a GPS receiver that receives a radio wave from a positioning satellite, a time counter that performs a time count operation, and a processor, the processor being configured to: corrects a time count of the time counter in accordance with time and date information included in the radio wave from the positioning satellite received by the GPS receiver; acquires a temperature in the timepiece; acquires a voltage of a battery; and controls a receive operation at the GPS receiver in accordance with the temperature and the voltage.

Abstract: A device having: one or more processors for determining an elapsed time since a correction of a calculated date and time; estimate a degree of deviation included in the calculated date and time, based on the elapsed time; and in response to estimating the degree of deviation to be equal to or smaller than a predetermined range, execute a method by which the one or more processors: generate an expected code sequence of a code sequence to be received from a satellite; control a satellite radio wave receiver to receive the code sequence; determine whether there is a match between the expected code sequence and the code sequence; in response to determining that there is a match, obtain a present date and time information represented by the expected code sequence; and correct the calculated date and time, based on the present date and time information obtained.

Abstract: An electronic timepiece, including: a receiver which receives broadcast radio waves including time information; a communicator which carries out wireless communication by establishing communication connection with an external device which is set; a processor; and an operation receiving unit which receives an input operation via an operating member, wherein in a case where a predetermined input operation corresponding to a command for obtaining information regarding a present time is received via a predetermined operating member, the processor selects a first information obtaining operation by which the information is obtained from the external device which is set via the communicator or a second information obtaining operation by which the information is obtained based on the broadcast radio waves received by the receiver according to whether a setting regarding the external device exists.