A node device includes a processor, a wireless RF circuit, a memory, and a timer. The processor measures a clock time. The wireless RF circuit receives a clock time information frame containing clock time information used for correcting the clock time. The memory stores a transmission processing time period, as a fixed value, from when a transmission source node device of the clock time information frame obtains the clock time information until when the transmission source node device transmits the clock time information frame. The timer measures a reception processing time period, which is a period of time from when the clock time information frame is received until when the clock time information is obtained. The node device sets to the processor a value obtained by adding the fixed value and the reception processing time period to the clock time information.