You can use the Content Expiration plugin to set posts or pages to expire automatically. The author is emailed two weeks prior to expiration and again upon expiration. When a post or page expires, it is not deleted. Instead, the post is hidden from users and put into an “Expired” status until the expiration is removed or reset.
To activate the plugin, select the Plugins section of your Dashboard after logging into your site.
In the upper right corner, search for “expiration.” When you find the Content Expiration plugin in the list, click Activate.
The plugin is now activated! When you create a new post or edit an existing one, a new section will appear near the bottom of the page.
You can set an expiration date by days (e.g. 90 days from now) or by entering a specific date.
When you edit an existing post with an expiration date, the expiration date is displayed and you have options to keep the current expiration, disable it, or set a new one.
You can schedule blog posts to automatically publish themselves at any time in the future. If you want to remove an already published post and automatically republish it at a specific time/date in the future, the directions are the same:
In the Publish metabox to the right of the post editor, click the blue Edit link next to Publishimmediately.
Set the future date/time when you want the post to publish itself and click OK. To schedule a post in the PM, you will need to use the 24-hour clock. For example, 1:00 PM would read as 13:00 in the Schedule a Post module. The time will be based on your location settings in your Settings -> General page.
Instead of Publish immediately, it will now say Schedule for: followed by the date and time you specified, and the button has changed from Publish to Schedule.
Click Schedule. Scheduled posts will be triggered by the first visit to your blog on or after the exact date/time you set. If you see that the scheduled time has come and gone and your post has not published, simply log out of WordPress and view your blog’s front page. Your visit should cause the post to appear.
Note: Sometimes you might want to backdate a post. For example, if you’ve just come back from a long trip, you might want to write a post for each day of your travels and have the post dates match the actual days you were away. To backdate a post, simply edit the date before you click Publish, as described above. In this case, the button will not change to Schedule.
Un-scheduling a Post
If you’ve scheduled a post to be published in the future, but changed your mind and want to publish it immediately, head back to the Edit Post page for your scheduled post.
In the Publish module, click on the “Edit” link next to the date for which you’ve scheduled your post:
Then, enter today’s date and time as your scheduled post time and click on “Ok.” When finished, click Publish and your post will be published immediately.
Troubleshooting Scheduled Posts
If your scheduled post does not appear, check the following:
Is your timezone correct in your Settings -> General page?
Did you save your post as a draft rather than schedule it? For the post to publish, you must click the Schedule button.
Has no one visited your blog yet? Try logging out and visiting your blog’s front page.