(1) No employer shall worsen the working conditions of an employee on reduced working hours during a period of childcare under Article 19-2 on the grounds of such reduced working hours, except where such conditions are applied in proportion to the reduced working hours.
(2) The working conditions of an employee on reduced working hours during a period of childcare under Article 19-2 (including the working hours after the reduced working hours during a period of childcare) shall be determined in writing between the employer and the employee.
(3) No employer may require an employee on reduced working hours during a period of childcare under Article 19-2 to work overtime; provided, where the employee expressly requests to work overtime, the employer may have them work overtime for up to 12 hours per week.
(4) If average wages defined in subparagraph 6 of Article 2 of the Labor Standards Act are calculated with respect to an employee on reduced working hours during a period of childcare, the period of reduced working hours during a period of childcare shall be excluded from the period for calculating average wages.[This Article Added on Dec. 21, 2007]