Since COVID-19 is beyond a student’s control, the IRCC has temporarily allowed international students who were eligible to work on or off-campus while studying to work for more than 20 hours a week until August 31, 2020. This also applies to those study-permit candidates who are currently working in the following essential service industries:
• Information and Communication Technologies
• Energy and Utilities
For more info, you may consult the Guidance on essential services and functions in Canada during the COVID-19 Pandemic.