How to add an excpetion for an employee for a work schedule defined at Department level

Summary:

We have defined a work schedule at department for some specific weeks in a month where employees need to work for 10 hours instead of regular 8 hours

There is an employee who belongs to this department but doesn't need to work for 10 hours during those weeks and needs to work normally based on his working hours

We tried to create a Resource Exception on the work schedule with Work Period and assigned the work schedule along with the resource exception to the above employee

But now when employee tried to record an absence during that period the hours are getting defaulted to 23.58 for one day