COVID-19 has surely changed the way we travel, and the Canadian government has been enforcing new rules and regulations to keep both those in Canada and travelers safe. As now, fully vaccinated travelers who are otherwise eligible to enter Canada are allowed to enter the country if it has been at least 14 days since your last dose of an accepted vaccine.
This means you must count 14 days since your last dose, starting the day after you received your jab. For example, if you received your last does anytime on Thursday July 1st, then you would meet the exception on Friday July 16th. (July 2nd +14 days = July 16th)
Remember, if you enter Canada you must upload proof of vaccination on the ArriveCan app, and make sure you meet all other entry requirements.