SCHOOL CALENDAR FOR S.Y. 2019 – 2020 First Quarter = July 29 – October 5,2019 (49 days, 10 weeks) July 29 Beginning of Classes for SY 2019-2020 August 3 Parent Orientation August 12 Eid’l Adha (upon proclamation of the President of the Philippines) August 19-20 Educators' Convention August 21 Ninoy Aquino Day (special non-working holiday) August 26 National Heroes Day (regular holiday) Septemb..