The best WordPress event plug-in is:
It allows you to add ‘events’ to any blog post. So the blog post becomes the ‘more info’ listing and then can be viewed in various calendar formats. It’s powerful.
Here are 2 others with similar names that work a bit differently (I have not used them yet):
Or try this super simple option:
It just builds a widget showing blog entries with a custom field that give a time-out date.