An academic calendar is a schedule that outlines the important dates and events for a school year. It typically includes the start and end dates of terms or semesters, holidays, and exam periods. This calendar helps students, teachers, and parents plan their activities and manage their time effectively throughout the year. Different educational institutions, such as universities and high schools, may have varying academic calendars. Some follow a traditional schedule with two main semesters, while others might use a trimester or quarter system. Understanding the academic calendar is essential for students to stay organized and meet deadlines for assignments and exams.