Hi, I am working with a faculty member who is trying to solve a specific issue for his course. He wants to have the Automatically apply deduction to late submissions option enabled.  He wants to have deadlines for assignments be due at 11:59 PM but still be submittable without penalty until 3 PM the next day. He wants the 11:59 expectation to exists, but not to the detriment of the student if they aren't able to submit it until the morning.

We tested to see if using the following setting would allow for a student to turn in a submission after the due date but not before a full 24 hour timespan elapsed, resulted in no late penalty being applied.

Unfortunately, that wasn't the case and something even stranger is happening. 

 I submitted a test assignment 12 hours later 11 hours and 43 minutes later so it shows it as being .49 days late and implements a deduction of 90 points. 

First of all, does anyone know if the day interval takes into account a full 24 hours before a grade deduction occurs. And if it does not, why did it give a deduction of the 90 points in the example above?

Your input is greatly appreciated, thank you!