Depends. Perhaps one month or 45 days like that.
I hope you are aware of the following:
You leave Canada and then want to re‑enter
If you leave Canada after working here and then want to come back here to work, you must have a valid passport or travel document and a valid work permit.
If you are a citizen of a country that requires a temporary resident visa to travel to Canada, you must also have a valid entry visa to return, unless you are returning to Canada from the United States, Greenland or Saint-Pierre et Miquelon and the period initially authorized for your entry or any extension to it, as a visitor, student or worker has not expired.
Possession of these documents does not guarantee that you will be allowed back into Canada. You must show that you meet all the requirements of the Immigration and Refugee Protection Act and the Immigration and Refugee Protection Regulations before you will be allowed to re-enter Canada.