This early, Malacanang already released the official list of regular holidays and special non-working days for 2013. The list is contained in Proclamation 459 (full text). The full list is found below (see future updates here.
January 1, 2013 (Tuesday) – New Year’s Day
February 25, 2013 (Monday) - EDSA Revolution Anniversary (for schools only)
March 28, 2013 - Maundy Thursday
March 29, 2013 - Good Friday
March 30, 2013 - Black Saturday (special non-working day)
April 9, 2013 (Tuesday) - Araw ng Kagitingan
May 1, 2013 (Wednesday) – Labor Day
June 12, 2013 (Wednesday) - Independence Day
Date to be fixed - Eid’l Fitr
August 21, 2013 (Wednesday) - Ninoy Aquino Day (special non-working day)
August 26, 2013 (Last Monday of August) – National Heroes Day
Eidul Adha - date to be fixed
November 1, 2013 (Friday) - All Saints Day (special non-working day)
November 2, 2013 (Saturday) – Additional special (non-working) day
November 30, 2013 (Saturday) - Bonifacio Day
December 24, 2013 (Tuesday) – Special non-working day
December 25, 2013 (Wednesday) - Christmas Day
December 30, 2013 (Monday) - Rizal Day
December 31, 2013 (Tuesday) – Last Day of the Year (special non-working day)