Salam Alaikum!
The Presidential Proclamation No. 295 states that:
SECTION 2. The proclamations declaring national holidays for the observance of Eid'i Fitr and Eidul Adha shall hereafter 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. To this end, the National Commission on Muslim Filipinos (NCMF) shall
