An academic calendar is a schedule that outlines the important dates and events for an educational institution, such as a school or university. It typically includes the start and end dates of terms or semesters, holidays, exam periods, and registration deadlines. This calendar helps students and faculty plan their academic year effectively. Different institutions may have varying academic calendars, such as the traditional semester system, which divides the year into two main terms, or the quarter system, which divides it into four shorter terms. Understanding the academic calendar is essential for managing coursework, assignments, and other academic responsibilities.