The system of work and time in the Khilafah State is the Hijri calendar. The Hijri year is composed of 354 days with 3 days set aside for the days of the blessed Eid Al-Fitr and seven days for Eid Al-Adha. Thus 344 days remain to be divided between the 4 school terms as shown in the following chart:

The first school course commences on the first day of Muharram Al-Haram every year for a period of 83 days including the Fridays occurring in that period; it also includes the final examination period of that term. The course therefore ends after 83 days from its start. Then the next course commences after a holiday of 3 days at the end of the previous term.

The fourth term is a distinguished one as it includes the month of Ramadhan as well as blessed days of the Eids of Al-Fitr and Al-Adha. Some students or teachers may take the whole term as a holiday to perform the obligation of Hajj, or Umrah or to travel. Some may also perform the obligation of Hajj in the holiday of the blessed Eid Al-Adha which totals 7 days.