Studying in Canada, studying for two years to study for a master's degree, why is it given for three and a half years at a time?

The visa officer must be mistaken. However, this does not mean that you can stay for three and a half years after the two-year course.

First of all, according to the current immigration law in Canada, the validity of the study permit is the date you plan to end the course plus 90 days. These 90 days are for you to leave Canada or apply for permission to continue your studies.

If you finish the course ahead of schedule, the validity period of your study permit is no longer the expiration date indicated in black and white on your study permit, but the date when you finish your studies plus 90 days.

So how did the Immigration Bureau set a date for you to finish your studies?

Generally, after you finish your studies, the school will send you a graduation letter, report card, degree certificate or diploma. Immigration will take the date of issuance of the first document (or email) as the date when you finish your studies. Therefore, you must provide the above proof materials to the Immigration Bureau. If it is not provided, the Immigration Bureau will contact the school to ask for it and confirm it.

Therefore, even if you are given three and a half years, if you graduate on time, your actual validity will end 90 days after receiving the graduation letter. In fact, there was still more than one year before the validity of the paper in black and white.