For a worker who has been in continuous service for more than six months before the date on which this Ministerial Ordinance comes into effect (hereinafter referred to as the "effective date"), for whom a day other than April 1 is the base date (meaning the day following the day on which the period of continuous service prescribed in Article 39, paragraph (1) of the Labor Standards Act (hereinafter referred to as the "Act") ends; the same applies hereinafter in this Article), and whose prescribed working hours per week are 30 hours or more but less than 35 hours, notwithstanding the provisions of Article 24-3, paragraph (1) of the Ordinance for Enforcement of the Labor Standards Act after the amendment (hereinafter referred to as the "new Rules"), the provisions then in force continue to govern the hours specified by order referred to in Article 39, paragraph (3) of the Act until the day preceding the first base date after the effective date.