A clocking device includes a first clocking circuit that generates first clocking data in synchronization with a clock signal, a second clocking circuit that generates second clocking data which is updated in a cycle longer than a cycle in which the first clocking data is updated, an interface circuit that transmits the first clocking data to an external device, and receives a first correction value from the external device, and a storage circuit that stores the first correction value, in which the first clocking circuit sets the first correction value in the first clocking data so as to correct an update timing of the second clocking data.