Use
In SAP Human Resources (SAP HR), partial-day absences are absence periods within the employee’s planned working time on any given day. In other words, the employee is absent during part of his or her planned working hours, but is at work the remainder of the scheduled time.
The absence types that are stored as partial-day absences are specified in the settings made in Customizing.

Partial-day absences include:
Procedure
You can only enter partial-day absences for one day.
When you enter absence hours, the system automatically calculates the missing clock-in and/or clock-out times according to the settings made in Customizing. The system also references the planned working times in the daily work schedule and takes any substitution data into consideration.

If you enter times that are outside planned working time, the system automatically corrects them.
For more information on Activity Allocation and Cost Assignment, see
Integration with Other Components.Result
You have now recorded a partial-day absence for the employee.