Section 3. Start of the School Year. —

The school year shall start on the first Monday of June but not later than the last day of August.

In the implementation of this Act, the Secretary of Education, Culture and Sports shall determine the end of the regular school year, taking into consideration the Christmas and summer vacations, and the peculiar circumstances of each region.

In the exercise of this authority, the Secretary of Education, Culture and Sports may authorize the holding of Saturday classes for elementary and secondary levels for public and private schools.