6.03.1. When a holiday falls on a day that is not a regular working day for the employee, the employer must pay the employee an indemnity equal to 1/20 of the wages earned during the 4 complete weeks of pay preceding the week of the holiday, excluding overtime. However, the indemnity paid to an employee remunerated in whole or in part on a commission basis must be equal to 1/60 of the wages earned during the 12 complete weeks of pay preceding the week of the holiday.