A reboot control system includes an information processing device and a reboot management device connected over a network. The reboot management device includes a first storage unit that stores device management information including information related to each information processing device, a reboot time setting unit that sets a reboot time, and a reboot time notification unit that transmits the set reboot time to each information processing device. The information processing device includes a reboot information acquisition unit that acquires the transmitted reboot time, and a reboot execution unit that executes a reboot at the acquired reboot time. The reboot time setting unit takes Into account a positional relationship of multiple information processing devices existing in a predetermined neighboring relationship to set the reboot times of the multiple information processing devices existing in the predetermined neighboring relationship to mutually different times.