Reply To: Include END date in the total sum of days

Another way would be to set it to “use time” and use hidden fields for arrival and departure time to always increase the stay by one. For example 10.07 11:00 – 11.08 13:00 would be 26 hours which are two days.

You asked “Is there a way to change the logic of calculating” and the answer is yes, by changing the code that’s doing the calculation.
Regards