You’ll want to have a clear check-in and check-out schedule on your listing, and it’s important to tell your guests to call if they’re planning to be late. Even being 15 minutes late could mess up your schedule, and while you shouldn’t get angry at them, make it known that communication is key in these events. For checkouts, you’ll want to specify that late check-outs must be asked about directly and that they cannot be guaranteed.
It’s up to you to allow late checkouts, and you can take it on a case-by-case basis. The average check-in time is after 2pm/14:00 while the average check-out time is before 11am/11:00. You’ll need enough time to clean everything, get the keys, and ensure you’re ready for your next guests. Depending on whether you use a cleaning service or not, you’ll want to have a solid amount of time to have everything looking perfect before they arrive.