Video: How to Change the Published Date & Time of a Post
In this tutorial, we’re going to teach you how to change the date and time that a post was published.
Start by clicking Post on the left hand side and then choose the post you would like to make changes to. Over on the right hand side under the Publish heading, we can see where it says that it was published on December 23rd, 2013 at 6:00 PM. Just click on Edit and you change the date, the year and the time.
Click OK and when you’re ready, click Update. That’s what you need to do to change the date and the time of the post just published.