how we make full customizable timetable

Question

through this timetable which will accommodate the respective batches of a concerned department within the allocated lecture rooms and to the concerned lecturers.it will also address the complications of the timing of the particular class for a specific teacher. for example if a teacher is not free at a particular time at which he has been given a class,he can easily cheek the timetable and can find out the free slots where he can shift his class.and the proposed timetable would also be able to sort out the clashes between the different classes of the department in an efficient way