The humble, but powerful, Expiry stack makes it easy to hide or show blocks of website content, based on the current date and time. As some examples; use it to display special sales promotions for a limited period of time, create links or buttons to application or signup forms that close after a certain date, post job listings that automatically remove themselves after the closing date, or use it to list upcoming events that hide themselves after the event date has passed. Expiry can help you automate the display of content, when you're away from your computer.