Muslims are celebrating Eid al-Fitr, a festive holiday marking the end of the fasting month of Ramadan. Families gathered for special prayers followed by feasts and holiday sweets starting Sunday after a month of dawn-to-dusk fasting. Muslims typically mark the holiday with family visits and outings, and children get new clothes.

Eid al-Fitr is celebrated at the end of Ramadan. Here's what you need to know about the Islamic holiday, when it might arrive, and how it's celebrated.

There are two major Eid celebrations each year. One marks the end of the month of Ramadan, while the other takes place during Hajj.