End of discussion of articles in wordpress?

Question

WordPress

Good day, gentlemen!
The bottom line is:
Articles hang on WordPress, but they want to be able to add their end dates when creating them (closing comments or marking above a note like "closed").
It would also be cool if there was a calendar (as it already is, which shows the time the article was created) with an end.
The problem is that there is no time, as usual, and there would be a similar plugin ... Maybe someone knows or can tell you how this can be implemented?