Saudi Arabia and many other Middle Eastern countries are celebrating Eid-ul-Fitr on Friday.
In these countries, Thursday was the 29th and the last day of Ramzan 1444 AH.
Here is the list of countries celebrating Eid-ul-Fitr on Friday:
Algeria
Bahrain
Egypt
Iraq
Jordan
Kuwait
Lebanon
Palestine
Qatar
Saudi Arabia
Sudan
Syria
Tunisia
UAE
Yemen