CocoPopup has a ‘Pro’ extension that allows you to schedule the date to show the popup and the date to no longer display the popup. To enable popup scheduling in WordPress, you need to deselect ‘Activate the Popup in all cases’ under conditions. When you activate the scheduling, you will notice that the popup specification box flashes red to indicate that this popup is scheduled.

Additionally, you will see the popup scheduling date in the dashboard.

You can find this extension here: Schedule