Stony Brook Calendar Spring 2025 Printable. Spring equinox 20 march, summer solstice 20 june, autumn equinox 22 september, winter solstice 21 december. 2022 / 2023 academic calendar.

Web view the stony brook academic calendar, registration deadlines, tuition deadlines, relevant holidays, breaks, final exams, commencement and semester. Stay organized and never miss a birthday, anniversary, or important holiday again!