You can set a timer for when your screener should be turned on or off automatically, so you don't have to be there to manually do it yourself.
One tip on testing: make sure to use a large date range because if you use a single date, the timer will deactivate itself on the end date.
To enable a timer, simply highlight your active screener from the screener dropdown and click the "Time" clock icon. See below.
Upon activating it, your global navigation bar should say whether the scheduler is enabled. Note: If it says "Invalid Schedule," there's a problem with the way you set your scheduled days or times.