I am an international student who have applied for my study permit to Canada and already receive my passport with the visa stamp. The duration of my study will be from 1/09/2019 to 20/12/2019 as stated in my letter of acceptance. My flight tickets have been pre booked from 31/08/19 to 20/01/2019. However, the expiry of my visa stamp on my passport is on the 13/01/2020 which is 7 days earlier than my return flight. Does the expiry date on my visa stamp on my passport means i must return before the expiry date? If yes, is there any way i can prolong the expiry date? or will immigration officers in Canada issue the study permit with a different expiry date than the one on the passport?