A reception circuit can receive a plurality of standard time signals and
has a reception means for selectively receiving and demodulating any one
of the plural standard time signals, and a control means for outputting a
control signal that controls the reception means. The reception means
includes a signal amplifier unit for amplifying a reception signal
representing the received standard time signal; a signal extraction unit
for extracting a signal of a specific frequency from the amplified
reception signal; a rectifier unit for rectifying the extracted signal of
the specific frequency; and a demodulation unit for demodulating the
rectified signal of the specific frequency. The signal extraction unit
includes a plurality of crystal filters corresponding to the frequencies
of the plural standard time signals; a plurality of parallel capacitances
corresponding to the plural crystal filters and parallel connected to the
plural crystal filters; a filter switching unit for switching the plural
crystal filters based on the control signal; and a parallel capacitance
switching unit for switching the plural parallel capacitances based on
the control signal. The control means outputs to the filter switching
unit and the parallel capacitance switching unit a control signal
denoting the switch states enabling the reception means to receive the
standard time signal.