A radiography system includes: a radiography apparatus including a first radiation detector and a second radiation detector which is provided so as to be stacked on the side of the first radiation detector from which the radiation is transmitted and emitted； and an integrated control unit that specifies a predetermined time related to the emission of the radiation, on the basis of a first detection result that is a detection result of a predetermined time related to the emission of the radiation using a first electric signal output from the first radiation detector and a second detection result that is a detection result of a predetermined time related to the emission of the radiation using a second electric signal output from the second radiation detector.
