June 5 is the official start of School Year 2017-2018, according to the Department of Education (DepEd). The information is included in the agency’s memorandum entitled School Calendar for School Year 2017-2018, addressed to their regional offices and to both public and private schools.
The memo also indicates that private schools may deviate from the said date, provided that they start not earlier than the first Monday of June and not later than the last day of August.
The Department of Trade and Industries (DTI) on the other hand, has also released an official list of suggested retail price list for
school supplies on their website. The list should provide as a guide for consumers when shopping.
The official end of the school year shall be on April 6, 2018.
Memorandum from DepEd: http://www.deped.gov.ph/orders/do-25-s-2017
Suggested Retail Price of School Supplies from DTI: http://dti.gov.ph/consumers/e-presyo/school-supplies-srp