The academic day at St. Mark runs from 8:00 a.m. to 4:00 p.m. This extended schedule allows the school to provide enhanced academic programming and a holistic educational experience for every student. Additional class time ensures that students spend more time on task in core academics, and it allows a greater breadth and depth of study. Every class spends at least 90 minutes a day in English Language Arts (ELA) and at least one hour a day in math. Religion, social studies, and science are taught every day, and there is still time for all grades to enjoy music, art and physical education. Special programs such as Dancing Classrooms and Learning to Look are also possible because of the extended academic day.