Check your Employment Contract or the company handbook to determine the notice period required by your employer. There are no specific laws for how much notice you must give your employer. The most common notice period is two weeks if you have been in a position for more than two years, but extended periods may be required based on the seniority of the position.
For example, the government of British Columbia doesn’t have a set notice period requirement for employees to give their employer. They recommend the standard two-week notice period if your contract doesn’t specify anything else.