Here’s the official school calendar for School Year 2015 – 2016. This is very useful for parents, teachers and students in all public and private elementary and secondary schools.  Source

The important dates for SY 2015-2016 are as follows:

May

1 – Labor Day (regular holiday)
4-10 – Palarong Pambansa
18-23 – Brigada Eskwela
25-29 Oplan Balik Eskwela

June

1 – Beginning of Classes for SY 2015-16
12 – Independence Day (regular holiday)
Special PEPT
20 – 1st Parent-Teacher Conference (or PTC) (Saturday)

July

17 – Eid’l Fitr (regular holiday) (tentative)

August

6-7 – 1st Quarter Examinations
15 – Distribution of Cards/PTC
21 – Ninoy Aquino Day (special non-working holiday)
26 – National Career Assessment Examination (NCAE) for Kto12 Grade 9
31 – National Heroes Day (regular holiday)

September

Eid’l Adha (regular holiday) (tentative)

October

5 – World Teachers Day
15-16 – 2nd Quarter Examinations
24 – Distribution of Cards/PTC
26-30 – Mid-year assessment and INSET/Semestral Break (for students only)

November

1 – All Saints Day (special non-working holiday)
15 – Philippine Educational Placement Test (PEPT) – Luzon
22 – PEPT – Visayas and Mindanao
30 – Bonifacio Day (regular holiday)

December

19 – Start of Christmas Break
30 – Rizal Day (regular holiday)

January 2016

4 – Resumption of Classes
7-8 – 3rd Quarter Examinations
23 – Distribution of Cards/PTC
30 – Early Registration Day

February 2016

25 – EDSA People Power Anniversary (observance)

March 2016

2 – National Achievement Test (NAT) (Secondary – Grade 10)
2-4 – 4th Quarterly Examinations (Final Examinations) for Grade 6 and 10
8 – Language Assessment for Primary Grades (LAPG) for Grade 3
10 – National Achievement Test (NAT) (Elementary – Grade 6)
17-18 – 4th Quarterly Examinations for Grades 1-5 and Grades 7-9
24 – Maundy Thursday (regular holiday)
25 – Good Friday (regular holiday)
26 – Black Saturday (special non-working holiday)

April 2016

1 – Graduation
Last day of classes
4-8 – Distribution of Cards
9 – Araw ng Kagitingan (regular holiday)
11 – Start of Summer Classes

May 2016

1 – Labor Day
Palarong Pambansa
16-21 Brigada Eskwela
21 – End of Summer Classes and Final Examinations
23-27 – Oplan Balik Eskwela