Published: Jan. 4, 2024 By

Who Received This Email?
We sent this email at 7听p.m. on Wednesday, Jan. 3, 2024, to Main Campus, degree-seeking undergraduate and graduate students (not law) who had registered or were eligible to register for Spring 2024 classes.

As you prepare for the Spring 2024 semester, please keep in mind the following key dates. Deadlines occur at 11:59 p.m. Mountain Time unless otherwise noted.

These dates apply to Main Campus classes that follow听the full-semester start and end dates (Jan. 16鈥揗ay 8, 2024). For other calendars, see our academic calendar webpage.*

Monday, Jan. 8

  • Last day to and receive a full refund, less any outstanding charges.

Tuesday, Jan. 9

  • for students starting classes on Jan. 16.

Monday, Jan. 15

  • Martin Luther King Jr. holiday (no classes; university closed).

Tuesday, Jan. 16

  • First day of classes.
  • Last day to .

Wednesday, Jan. 24

  • Last day to , or for a closed class.
  • Last day to .

Wednesday, Jan. 31

  • Last day to without penalty.
  • Last day to without tuition charges and W grades; a $200 withdrawal fee applies.
  • Last day to .

Sunday, Feb. 4

  • Last day to .

Monday, Feb. 5

  • Last day to .
  • . Students still on the waitlist lose access to that class's online materials, but may be eligible to in the course the next time it's offered.

Tuesday, Feb. 13

  • Last day to .

Friday, March 22

  • Last day to .
  • Last day to .

Monday, March 25鈥揊riday, March 29

  • Spring break (no classes; university closed March 29).

Thursday, May 2

  • Last day of classes.
  • Last day to .

Saturday, May 4鈥揥ednesday, May 8

  • .

* If you鈥檙e enrolled in any class that doesn鈥檛 meet for the full 16 weeks, it鈥檚 a special session class. Special session classes follow different deadlines than full-semester classes (view the special session calendar). To check the session and view key dates for one of your classes, go to the card in Buff Portal. Select a class to view session information and the 鈥淒rop/Swap/Edit This Class鈥 button for related deadlines.


Office of the Registrar | University of Colorado Boulder
303-492-6970 | registrar@colorado.edu