Download the academic calendar (2020-2021) LaGuardia's academic calendar consists of two enhanced 18-week semesters. Each semester is split into a 12-week session (Fall I and Spring I) and a 6-week session (Fall II and Spring II). Classes are longer and/or meet more frequently in Fall II and Spring II, since students have to complete Session I coursework in half the time. This structure provides students with the option of earning more credits per semester than a traditional academic calendar. It also allows greater flexibility and choice in designing a program of study.