Carnegie Mellon structures its academic year around two main semesters and a summer session, each with clearly defined start and end dates, registration windows, and holidays. Knowing these dates helps you line up coursework, extracurriculars, and personal commitments without surprise conflicts.
Beyond the basics, the calendar also signals when grades are posted, when financial aid is evaluated, and when opportunities like research projects and internships open. Aligning your plan with these milestones lets you stay ahead of requirements and make the most of campus resources.