Check out and check in on the same day

Hello, now I've finally found this forum. Unfortunately, I have to get my mails no response. Maybe someone can help me? Sadly you can not leave on the same day and arrive. but that is for bookings of apartments and rooms so common. Or I can set this somewhere? Thank you for your answer. It would be nice, when the check-out day would be marked half (as the check-in date). Is that possible.