It is not often, but once in a while there may be content that you'd like to un-publish by a certain date. That's where you can make use of the Expiration Date option for content.
First activate the option for all content.
- Change to Admin role
- Go to Settings>Content
- Activate the Expiration Date option
Once that option is activated for content you'll notice a new "Expires" checkbox. When it is checked, it will provide you extra fields for you to provide the date & time of expiration.