The day of Eid-ul-Adha falls on the tenth day in the final (twelfth) month of the Islamic Lunar Calendar; Dhu-al-Hijjah. The day that celebrations fall on is dependent on a legitimate sighting of the moon, following the completion of the annual Holy Pilgrimage of Hajj – which is an obligation for all Muslim’s who fit specific criteria, one of the important Five Pillars of Islam.
The celebration of Eid-ul-Adha is to commemorate Prophet Ibrahim’s devotion to Allah SWT and his readiness to sacrifice his son, Ismail. At the very point of sacrifice, Allah SWT replaced Ismail with a ram, which was to be slaughtered in place of his son. This command from Allah SWT was a test of Prophet Ibrahim’s willingness and commitment to obey his Lord’s command, without question. Therefore, Eid-ul-Adha means the festival of sacrifice.