U Of I Calendar 2025-26. 11:59 pm cst deadline to cancel registration (dropping all spring 2025 classes) for full reversal of tuition and campus fees for classes scheduled in a regular semester. Please be aware that dates on the tentative calendar are subject to.

All undergraduate programs, and most graduate programs, follow the semester calendar. View the academic calendar of dates including term start and end, registration, drop deadlines, billing dates, spring break, and more.