Eid al-Fitr is the first of the two main festivals in Islam, the other being Eid al-Adha. The holiday falls on the first day of Shawwal, the tenth month of the Islamic calendar. One of the most important Islamic celebrations, Eid al-Fitr is celebrated by Muslims worldwide as it marks the end of the month-long, dawn-to-dusk fasting (sawm) during Ramadan. The holiday is known under various other names in different languages and countries around the world.