How are the Rental Days calculated?

Answer: The module works in hours, and day is 24 hours long.
 

Example: 
If we take the example below;

                 RENTAL COLLECTION DATE AND TIME:  19/06/2023 09:00 

                 RENTAL RETURN DATE AND TIME: 26/06/23 17:00

                 Total Hours = 176 hours.
 
176 / 24 = 7.333, greater than 7, and the module will round this up to 8 by design, as it is more than 7 days.  

Basically the same as if you return a rental late, you are charged the additional day.