The official school year calendar for the Toronto District School Board runs from September 1 to June 30, inclusive.

First day of classes for students is September 15 (staggered start begins, all students start by September 17)
The last day of class for elementary students is June 29
The last day of class for secondary students is June 28

There are no classes for students on the dates listed below:

Note: September 4, 2020 would be a non-work day (non-paid day) for 10-month support staff and teaching staff.