Eid ul-Fitr, Eid al-Fitr, Id-ul-Fitr, or Id al-Fitr (Arabic: عيد الفطر ‘Īdu l-Fiṭr), sometimes shortened to Eid, is a Muslim holiday that marks the end of Ramadan, the Islamic holy month of fasting (sawm). Eid is an Arabic word meaning “festivity,” while Fiṭr means “breaking the fast”. The holiday celebrates the conclusion of the 29 or 30 days of dawn-to-sunset fasting during the entire month of Ramadan. For our complete Muslim holiday calendar.