Scheduled Publisher lets you easily set your content to get shown on a date and time that you decide. Or you can decide that a piece of content should stop being shown after a certain date.
Scheduled Publisher is a stack that lets you easily achieve this. Just drag in your content and set the date and time.
If you are familiar with Content Management Systems (CMS), you know that being able to publish/unpublish content on specific dates is one of its main strengths. Now you can do the same on RapidWeaver.