The academic calendar is the main resource for important dates and deadlines for all things related to course registration, add/drop, withdrawing, financial aid, Colorado Opportunity Fund, tuition and bill due dates, and requirement documentation.
Note: There is 1 additional week between Fall 2022 and Spring 2023 (4 weeks instead of 3) because every 5-6 years an extra week occurs in the calendar. We start spring 1 week later in this case for Spring 2023 so that there will continue to be only 2 weeks between end of summer B & D sessions and beginning of Fall 2023.