Does what I need.

Every so often I have a notice within a page or post that needs to expire without me having to baby-sit and remember to remove it. And it may even be an annual recurring notice that I can easily re-institute on a new date. This plugin does the job. You will need to make sure you have the correct timezone set in your WordPress General Settings, or the start and end times may not work as expected. Other than that, it’s simple and straight-forward.