The electronic timepiece has a receiver that receives standard time signals; a detector that samples the received signal and detects the signal level; a calculator that computes, based on the detected signal level, the total signal width of a first level signal in 1-second, and the continuous time of the second level signal; and a code evaluator that determines the code transmitted in the signal based on the calculated total. The signal contains a first code and a second code in which the total signal width of the first level signal in 1 second is the same; the first code is a code that transmits the first level signal in 1 second; the second code is a code that transmits two first level signals separated by a second level signal in 1 second.

A radio timepiece, including: a satellite radio wave receiver; a ground wave receiver; a memory; and a controller, wherein the controller performs area determination operation of determining whether a current position is located within a geographical range where the ground wave receiver is capable of acquiring notice information regarding implementation/non-implementation of the leap second adjustment, when the controller determines that the current position is located within the geographical range, the controller controls the ground wave receiver to acquire the notice information, the controller determines, with the notice information, whether the leap second adjustment is scheduled to be implemented at an implementation candidate timing of the leap second adjustment, and when the controller determines that the leap second adjustment is scheduled to be implemented, the controller changes the leap second correction information at or after the implementation candidate timing.

The fixed-time reception control section carries out the reception process at first time to acquire first reception time data and compares the acquired first reception time data with the internal time. When a difference in time between the first reception time data and the internal time is greater than or equal to a first threshold, the fixed-time reception control section carries out the reception process at second time different from the first time to acquire second reception time data. The time correction section compares the acquired second reception time data with the internal time and corrects the internal time based on the second reception time data when a difference in time between the second reception time data and the internal time is smaller than a second threshold.

The fixed-time reception control section carries out the reception process at first time to acquire first reception time data and compares the acquired first reception time data with the internal time. When a difference in time between the first reception time data and the internal time is greater than or equal to a first threshold, the fixed-time reception control section carries out the reception process at second time different from the first time to acquire second reception time data. The time correction section compares the acquired second reception time data with the internal time and corrects the internal time based on the second reception time data when a difference in time between the second reception time data and the internal time is smaller than a second threshold.

A radio-controlled timepiece includes a first oscillating unit configured to oscillate at a first frequency and output a clock signal, a receiving unit including a second oscillating unit and configured to receive radio waves including time information, frequency of the second oscillating unit being less temperature-dependent than that of the first oscillating unit and the second oscillating unit being configured to oscillate at a second frequency and output a clock signal, a control unit configured to calculate temperature compensation data for the first oscillating unit based on an oscillation frequency of the first oscillating unit obtained using, as a reference, the clock signal output from the second oscillating unit and on the temperature data acquired by a temperature acquiring unit, and a storage unit configured to store the temperature compensation data. The control unit performs temperature compensation for the first oscillating unit based on the temperature compensation data and the temperature data.

A radio-controlled timepiece includes a first oscillating unit configured to oscillate at a first frequency and output a clock signal, a receiving unit including a second oscillating unit and configured to receive radio waves including time information, frequency of the second oscillating unit being less temperature-dependent than that of the first oscillating unit and the second oscillating unit being configured to oscillate at a second frequency and output a clock signal, a control unit configured to calculate temperature compensation data for the first oscillating unit based on an oscillation frequency of the first oscillating unit obtained using, as a reference, the clock signal output from the second oscillating unit and on the temperature data acquired by a temperature acquiring unit, and a storage unit configured to store the temperature compensation data. The control unit performs temperature compensation for the first oscillating unit based on the temperature compensation data and the temperature data.