The following calendar highlights important dates throughout OSUD's 2023-2024 season. Regular classes are held Fridays and Sundays except for the noted holidays below. The season begins on September 17, 2023 and finishes on June 1, 2024.

Term 1	Term 2
September 17 to December 11, 2023	January 8 to June 1, 2024​​
September 17 - Term 1 classes begin October 6 and 8 - Thanksgiving (no classes) December 10 - Winter Celebration (final day of Term 1)	January 14 - Term 2 Sunday classes begin​ January 19 - Term 2 Friday classes begin February 18 - Family Day weekend (no classes) March 10 and 15 - March Break (no classes) March 29 and 31 - New Calendar Easter (no classes) May 3 and 5 - Old Calendar Easter (no classes) May 17 and 19 - Victoria Day weekend (no classes) May 24: Final day of regular Friday classes May 26: Final day of regular Sunday classes May 29, 30, 31: Year-end concert dress rehearsals June 1 - Year-end concert (Meridian Theatres @ Centrepointe)