RECEIVING DEVICE

A receiving unit receives a first packet from a transmitting device via a network and outputs a second packet included in the first packet. A processing unit receives the second packet and implements processing based on a receiving side reference clock on the second packet. A clocking circuit of the receiving unit performs a clocking operation synchronously with a network clock. A packet output circuit of the receiving unit outputs the second packet and outputs a control signal indicating normality/abnormality of output timing of the second packet based on a result of comparing a time of the clocking circuit and a time of first time information included in the first packet. A clock adjusting circuit of the processing unit synchronizes, when the second packet includes second time information indicating a time based on a transmitting side reference clock and when the control signal indicates normality, the receiving side reference clock with the transmitting side reference clock based on a result of comparing a time based on the receiving side reference clock and a time of the second time information.