Not only is the Studying Permit
Foreign nationals are required to obtain a study permit for engaging in academic, professional, vocational or other education or training that is more than 6 months in duration at a Designated Learning Institution (DLI) in Canada unless exempted.
A study permit is not a visa. You may need a temporary resident visa or an electronic travel authorization (eTA).
A study permit is usually valid for the length of your study program, plus an extra 90 days. This extra time lets you prepare to leave Canada or apply to extend your stay.
If you can’t finish your courses before the date on your permit, you must apply to extend your stay as a student.
If you finish your studies early, your permit will stop being valid 90 days after you complete your studies (no matter what day is printed on the study permit).
You have completed your studies either
on the date you get the first notification from your school (such as an email, letter, transcript, etc.) or
when you get your degree, diploma or certificate.
You must prove provide proof of the date you got one of these.
If you plan to leave Canada during a scheduled break (such as the summer, or winter holidays and spring break), you may need to show proof you are enrolled in your school when you return to Canada. If you came here on:
a visa, you also need to make sure it is still valid.
an electronic travel authorization (eTA), and you leave and return to Canada by air, you will need to make sure it is still valid.