In all Canadian jurisdictions, it is the employer's prerogative to determine when each employee may take an annual vacation, within certain limits laid down by law. First, a vacation must be granted within a specified period after the date on which the employee becomes entitled to it. Second, it is required that employers provide a minimum at least two weeks of notice to their employees before they start their vacation. It is recommended vacation be scheduled at least 4 months in advance to ensure availability within the scheduling calendar. Obviously, such notice is not normally necessary where an employer and an employee agree on a mutually satisfactory vacation starting date.