Eid al-Fitr also called the "Festival of Breaking the Fast", is a religious holiday celebrated by Muslims worldwide that comes after the end of the fasting of the holy month Ramadan. This religious Eid is first day in the month of Shawwal during which Muslims are not permitted to fast. The date for the start of any lunar Hijri month varies based on when the new moon is sighted by local religious authorities, so the day of celebration varies by locality and time.