How to set school working hours and create time-table in WPSchoolPress?

Go to General Settings<Working Hours on left menu bar
Add Class hours. Class hours are used to define the number of lectures and breaks along with their respective time duration throughout the day. It is necessary to fill add class hours before creating a Time Table
Now you can go back and select Timetable option wherein you have to select the class for which you want to make the time table. Now you can drag the shown subjects to the slots which you had created in past for each class as shown in the below screen shot
Teachers, students and parents can view timetable of their concerned class from their dashboards