This depends on use case. If you are doing a frontend layer on top of closed-open, then the frontend will have to handle the points the article is rambling about.
Users are used to selecting a daterange in closed closed format for example.
Users are used to selecting a daterange in closed closed format for example.
Though from a user perspective, they are still there on the final day. Still, I think there's some nuance to this, as it's generally understood the date range they select isn't the number of nights they expect to pay for.