An image forming device simulation apparatus includes: an image formation command acquisition unit that acquires an image formation command including information about a target image targeted for formation by the image forming device; a simulation unit that performs a simulation of image formation processing in which the image forming device forms the target image on a record medium based on the image formation command; and a predicted time calculation unit that calculates and outputs predicted time for taking the image forming device to perform the image formation processing based on processing time taken to perform the simulation.