Mit Calendar 2025 Holidays Illinois. During the winter break, days that are not observed as holidays. Comprehensive list of national and regional public holidays that are celebrated in illinois, usa during 2025 with dates and information on the origin and.

Priority registration begins for spring 2025 for eligible continuing and returning students november 21, 2024 open registration begins for new and all other students During the winter break, days that are not observed as holidays.