7.07.3. Where the employee, who is not a regular employee, is obliged to work on one of the days mentioned in section 7.07.1, the employer, in addition to paying the employee the wage corresponding to the work performed on the holiday, is obliged to pay him the indemnity provided in section 7.07.2 or grant him a compensatory holiday of 1 day. In this case, the holiday must be taken within 3 weeks before or after that day, unless a collective agreement provides for a longer period.