Proclamation 84 by the President of the Philippines states that
R.A. 9492 - ALL holidays except those are religiuos in nature will be moved to the nearest Monday unless otherwise modified by law.
R.A. 9849 - Eidul Adha is celebrated as a national holiday.
Section 1 - The following Regular and special holidays for the year 2011 shall be observed in the country:
Regular Holidays:
New Year's Day - January 1 (Saturday)
Araw ng Kagitingan - April 9 (Saturday)
Araw ng Kagitingan - April 9 (Saturday)
Maundy Thursday - April 21
Good Friday - April 22
Labor Day - May 1 (Sunday)
Independence Day - June 12 (Sunday)
National Heroes Day - Last Monday of August
Bonifacio Day - November 30 (Wednesday)
Christmas Day - December 25 (Sunday)
Rizal Day - December 30 (Friday)
Ninoy Aquino Day - August 21 (Sunday)
All Saints Day - November 1 (Tuesday)
Last day of the Year - December 31 (Saturday)
Special Holiday (for all Schools):
EDSA Revolution Anniversary - February 25 (Friday)
Section 2 - The proclamations declaring national holidays for the observance of Eid'l Fitr and Eidul Adha shall be issued after the approximate dates of the Islamic holidays have been determined in accordance with the Islamic Calendar (Hijra) or the lunar calendar or upon Islamic astronomical calculations, whichever is possible or convenient. The National Commission on Mislim Filipinos (NCMF) shall inform the Office of the President on which day the holiday shall fall.
