off in that case means break Can I continue to work during scheduled school breaks?
Generally, yes. Your study permit must still be valid and you must still meet all the requirements. If you work off-campus
You can work full-time during scheduled breaks, like over summer holidays and during spring break. You must meet all the requirements for working off-campus before you start working. Once your school year restarts, you can only work a maximum of 20 hours per week. If you work on-campus
You can work full-time during scheduled breaks, like over summer holidays and during spring break. You must meet all the requirements for working on-campus before you start working. https://www.cic.gc.ca/english/helpcentre/answer.asp?qnum=499&top=15