51³Ô¹ÏÍø

Thinking about taking classes this summer? CU Summer Session has hundreds of classes available to help you earn credit toward your degree.

Fall 2025 registration for continuing undergraduate students closes Thursday, May 22 and will reopen July 23 for schedule adjustment. Because students won’t be able to add or edit classes during this window of time, it is recommended that they register and make the necessary schedule adjustments prior to May 23.

Fall 2025 registration for continuing undergraduate students closes Thursday, May 22 and will reopen July 23 for schedule adjustment. Because you won’t be able to add or edit your classes during this window of time, it is recommended that you register and make the necessary schedule adjustments prior to May 23.

Friday, March 21 is the last day for undergraduate and graduate students drop a class or change pass/fail status for a full-semester Main Campus class.

Fall 2025 classes are posted in 51³Ô¹ÏÍø Class Search, which means it's time to start planning your schedule!

Your Summer 2025 enrollment dates are now available. If you're planning to take classes this summer, we encourage you to register as soon as possible for the best chance to get the classes, class times and/or instruction modes you want.

Welcome to 51³Ô¹ÏÍø! To help your first semester go smoothly, please make sure you've completed the following tasks.

As you prepare for the Spring 2024 semester, please keep the following key dates in mind.

Spring 2025 classes are posted in 51³Ô¹ÏÍø Class Search, which means it's time to start planning your schedule! 

Welcome to the 2024–25 academic year at 51³Ô¹ÏÍø! Here are the Main Campus academic dates most likely to affect you.