The official school year calendar for the Toronto District School Board runs from
September 6, 2011 to June 29, 2012, inclusive.
| Labour Day: | September 5, 2011 |
| Thanksgiving: | October 10, 2011 |
| Board-wide Professional Activity: | November 18, 2011 |
| Board-wide Professional Activity: | December 9, 2011 |
| Christmas Break: | December 26, 2011 to January 6, 2012 (inclusive) (last day of school is December 23, 2011; school resumes January 9, 2012) |
| Professional Activity (Elementary Schools only): | January 27, 2012 |
| Professional Activity (Semestered Secondary Schools only): | February 2, 2012 (* Optional - Semester Change: The first day of second semester is 3 February 2012. Semestered secondary schools will have the option of replacing the 27June 2012 PA day date with 2 February 2012 for semester changeover and professional activities.) |
| Board-wide Professional Activity: | February 17, 2012 |
| Family Day: | February 20, 2012 |
|
Mid-Winter Break: |
March 12 to 16, 2012 (inclusive) |
| Good Friday: | April 6, 2012 |
| Easter Monday: | April 9, 2012 |
| Victoria Day: | May 21, 2012 |
| Professional Activity (Elementary Schools only): | June 1, 2012 |
| Professional Activity(Secondary Schools only): | June 27*, 28, 2012 (* Optional - Semester Change: The first day of second semester is 3 February 2012. Semestered secondary schools will have the option of replacing the 27 June 2012 PA day date with 2 February 2012 for semester changeover and professional activities). |
| Board-wide Professional Activity: | June 29, 2012 |
