How long can a Canadian tourist visa enter the country during its use?

During the validity period of tourist visa, the applicant can stay for half a year at most, but the half-year period is not fixed. When entering the country, the customs will decide the specific entry time according to the applicant's certificate information, and the applicant needs to reschedule the trip according to the time stipulated by the customs to avoid inconvenience. "/zd/ym "