The following calendar highlights important dates throughout OSUD's 2022-2023 season. Regular classes are held Fridays and Sundays except for the noted holidays below. The season begins on September 18, 2022 and finishes in June 2023 (date to be confirmed).

Term 1	Term 2
September 18 to December 11, 2022	January 8 to early June 2023​​
September 18 - Term 1 classes begin October 9 - Thanksgiving (no classes) December 11 - Final day of Term 1	January 8 - Term 2 Sunday classes begin​ January 20 - Term 2 Friday classes begin February 19 - Family Day weekend (no classes) March 12 and 17 - March Break (no classes) April 7, 9, 14 and 16 - Easters, Passover (no classes) May 21 - Victoria Day weekend (no classes) May 26: Final day of regular Friday classes May 28: Final day of regular Sunday classes Early June 2023 - Final concert (date and location TBC)