Excerpt in WordPress refers to the summary of the post. Excerpt replaces the full content in RSS feed and we can easily manage it from the reading section of settings. Depending on the themes, an excerpt can display where the quick summary is preferred rather than full content.
Whenever you want to make your post fresh, you can change the post published date in WordPress post. Likewise, you can also change the date on the page. WordPress has the functionality to change the post published date and it is very easy to do that. In this blog post, we are going to share you about how to change the post published date in posts and pages.