I started a post on the 18th and finished it this morning. But when I published it, the date showed up as the 18th rather than the 20th. Therefore, it looks like I put it out on the 18th. This was not what I intended, and I don't know how to change the date on the post so it will show up where I wanted it.
Oh well, if you are interested in reading that post, you'll have to scroll down to it. Sorry for the inconvenience.