Turkey is celebrating from Tuesday Eid al-Fitr festivities marking the end of the Muslim holy fasting month of Ramadan with most Muslim states, reported Worldbulletin.
Saudi Arabia, the birthplace of Islam, and most of its neighbours will celebrate the Eid al-Fitr feast on Tuesday, regional media said on Monday.
Religious authorities in Saudi Arabia, home to Islam's holiest shrines, said the new moon had been sighted and that Ramadan would end on Monday with the feast to follow the next day.
Lebanon, Libya, Jordan, Bahrain, Kuwait, the United Arab Emirates, Qatar and Yemen will also start the holiday on Tuesday, media reports said.
The timing of Eid can vary in different countries depending on the sighting of the new moon, which marks the start of the month in Islam's lunar calendar.
Regional stock markets are closed during the holiday. The Saudi bourse, the Arab world's largest, has the longest break and will re-open on Oct. 6.
In Egypt, however, the feast will start on Wednesday, the mufti, or the country's highest religious authority, announced on state television.
During Ramadan, observant Muslims abstain from eating, drinking, smoking and sex between dawn and sundown each day, after which they break their fast in what is known as iftar.