Immigration, Refugees and Citizenship Canada (IRCC) does not limit the number of hours you can work on campus.
You can work unlimited hours on campus during regular academic terms.
You can work unlimited hours on campus during your program’s scheduled breaks if you’re enrolled full-time in the academic terms immediately before and after your scheduled break. For example, if you are enrolled full-time in September term and will enroll full-time in the following term, you can work unlimited hours on campus during the winter break. If you are not full-time in the terms before or after your scheduled break, you cannot work during the scheduled break.
You are permitted to work full-time on or off campus during a scheduled break for a total of 180 days per calendar year, but not more than 150 consecutive days.
You cannot work full-time on campus during a scheduled break for more than 150 consecutive days, and cannot exceed a total of 180 days per calendar year.