Mizzou Academy offers several programs with different scheduling options. Please see below for information about school and university holidays, as well as important AP calendar dates.

Course Dates

We are a year-round school, and many programs offer rolling enrollments. AP courses follow traditional U.S. high school fall and spring semester format.

2024-25 AP Course Calendar Dates

  • Fall 2024: August 21, 2024–December 20, 2024
  • Spring 2024: January 13, 2025–May 23, 2025


The University of Missouri has eight (8) official holidays which are counted in the number of days in the course to allow for these dates (ex. if a course ends on a university holiday, an additional day is provided). Mizzou Academy / University of Missouri High School Support Staff will not be available on these dates.

  • New Year’s Day — Jan. 1
  • Martin Luther King Jr. Day
  • Memorial Day
  • Juneteenth — June 19
  • Independence Day — July 4
  • Labor Day
  • Thanksgiving Day
  • Friday following Thanksgiving
  • Christmas Day — Dec. 25
  • Winter Break — From December 24 — January 1, we are observing Winter Break. During this time, we have encouraged our faculty and staff to enjoy time with their loved ones. We hope you are also having a joyous and restorative week.
  • If the holiday falls on a weekend, please check with our office for whether the holiday is observed on Monday or Friday.


Mizzou Academy holds professional intersessions two times a year. During the following times, Canvas is still available to students while school is not in session and our offices are closed. 

Winter Intersession: January 2 – 9
Summer Intersession: July 1 – 15

Other Important Dates