The academic calendar for the University of Wisconsin varies by term and program, but generally, it is structured around a two-semester system with an optional summer session. The fall semester typically begins in September and concludes in mid-December. The spring semester usually starts in mid-January and ends in early May. Each semester includes designated periods for final exams and breaks, such as a fall break in October and a spring break in March. The summer session, which offers a range of courses, is divided into multiple sessions that may last from several weeks to a couple of months. Students should refer to the specific academic calendar published on the University's website for precise dates and any changes for the current or upcoming academic year.