What is the difference between quarters and semesters?
A quarter is approximately 12 academic/school weeks. There are 4 quarters in an academic/school year. A semester at West Valley College is 16 academic / school weeks. There are 2 semesters, plus Summer and Winter sessions, in an academic/school year. Within the University of California (UC) system, all campuses are on a quarter system with the exception of UC Berkeley. Within the California State University system, 16 campuses are on a semester system, while 6 campuses are on a quarter system.