One rental day is 24 hours from the time you pickup the equipment. You can pickup at any time between 10am to 6.30pm. However, if you pickup at 6pm on day 1 and return before 11am on day 3, it will still be calculated as 1 day. After 11am, it will be counted as 2 days. Orders cannot end on Sundays and have to be returned before 6.30pm on Saturday.