1. A job hold tool comprising: a memory configured to store: a maintenance schedule indicating a period of time during which maintenance is scheduled to occur; and a job schedule indicating a plurality of scheduled start times for a plurality of jobs; a conflict engine configured to identify, based on the job schedule and the maintenance schedule, each job of the plurality of jobs whose scheduled start time is within the period of time; a hold engine configured to hold each job identified by the conflict engine such that each held job will not start at its scheduled start time; a start engine configured to start each held job in response to a received notification that the maintenance is complete.