A real-time clock module includes a clocking circuit configured to generate clocking data based on a clock signal, an output terminal, a memory circuit configured to store output control information for controlling an output of a signal from the output terminal and output value information in which a value of the signal output from the output terminal is set, and an interface circuit configured to receive a setting value of the output control information and a setting value of the output value information. When the setting value of the output control information is a first setting value, the real-time clock module outputs a first signal based on the setting value of the output value information from the output terminal.