How is time data derived in the following Time Category types of Time Type Group?

Paid Absences: Time data is derived from absences entered in Time Off, irrespective of absences set in Time Type Group.

Calculated Time: Time data is derived from the output of a time valuation.

Paid Absences: Time data is derived from absences entered in Time Off, only for those absences assigned to the Time Type Group.

Calculated Time: Time data is derived from the work schedule of an employee.