Cambridge International Examination Ordinary Level (O level) examination is taken twice every year, in June and November. The Pearson Edexcel Examination are also held twice a year, but in January and May/June. The date-sheet and timetable is vital for a candidate as examination must be taken in the foreordained session, date and time. Candidates will be granted assessment "U" in the wake of missing the examination. There are three sessions in which examination is basically conducted. These are:
Morning session – AM
Evening session – EV being introduced in June 2015
There is one Key Time for the morning (AM) session and a second Key Time (PM) for the afternoon session. The EV Key Time is four hours after afternoon (PM) Key Time. It is incited for candidates to download the time-table and date-sheet for their defined administrative zone. Pakistan has been placed in administrative zone 4.