You can view the official TDSB School Year Calendar for 2020 – 20201 academic year at the following link: https://www.tdsb.on.ca/About-Us/School-Year-Calendar
Additionally, there is a PDF school year calendar at this link which indicates the Ministry approved calendar for the province.
PDF LINK: https://www.tdsb.on.ca/Portals/0/aboutus/Secondary%20Calendar%202020-2021%20revpdf.pdf
