An image forming system capable of executing a print job including a first job and a second job, the image forming system includes: an image forming apparatus configured to print an image on a sheet based on the first job, and thereafter, print an image on a sheet based on the second job; a sheet conveyance apparatus configured to insert the sheet that has been printed by the first job into the sheet that has been printed by the second job; an input unit configured to be used to input a time period in which execution of user operation related to the sheet conveyance apparatus is possible; and a control unit configured to print the job so as to finish the first job within the time period that has been input by the input unit.