An imaging control apparatus for controlling an imaging system capable of performing a plurality of imaging modes for detecting light or radiation to acquire an image includes a detection unit configured to detect that an instruction for executing a second imaging mode is generated during execution of a first imaging mode, a determination unit configured to determine a wait time according to a state of the imaging system when the instruction is received, and a control unit configured to perform control for instructing the imaging system to wait at least for the determined wait time before the transition to the second imaging mode, and control for instructing the imaging system to perform mode transition processing for switching from the first imaging mode to the second imaging mode.
