How can I mark the first edit time and the most recent modification time at the end of the article

My site MINGMIND, is a very famous Chinese blog.
Sometimes, I need to update an already published article. How can I mark the first edit time and the most recent modification time at the end of the article?

You can use the date helper to output any available date:

Posts have several date fields including updated_at and created_at:

Thank you so much, I got it.