A three-month college semester is standard. The length of a semester, however, varies from state to state. The fall and spring semesters are each 15 weeks long, whereas the summer session is typically 12 weeks long.
The semester system divides the academic year into two terms, each lasting 14 to 20 weeks. The length of a semester ranges from one to three weeks depending on the school. The K-12 timetable, which consists of two 18-week semesters, is still used by several community institutions. During the autumn and spring semesters, universities in the United States have two intakes. The fall semester begins in August or September and runs through December, whereas the spring semester begins in January and runs through May. Summer semesters take place from May to August.