Saudi Arabia's High Judicial Court has announced that, based on confirmed sightings of the new moon crescent on Tuesday, the first day of Eid al-Adha 1438 will be Friday, September 1.

Malaysia, Jordan, and South Africa had also announced the same.

Confirmed September 1 Malaysia

Indonesia

Jordan

Malaysia

Turkey

Saudi Arabia

Oman

Egypt

South Africa

Morocco

Maldives

Algeria

Nigeria

Pakistan announced Saturday, September 2 would be the first day of Eid.

Bangladesh, Pakistan and India were also sighting the moon on Tuesday, which for them is the 29th day of the Dhu al-Qidah lunar calendar. For Saudi Arabia, August 22 corresponds to the 30th of Dhu al-Qidah.

عاجل: هلال شهر ذي الحجة كما تمت رؤيته قبل قليل من قبل عضو مركز الفلك الدولي في سلطنة عمان المهندس محمد البوسعيدي. pic.twitter.com/aoQngDJ1cL — مركز الفلك الدولي (@AstronomyCenter) August 22, 2017

The Eid al-Adha is Islam's holiest festival celebrated annually around the world and is an official holiday in Muslim-majority countries.

Eid al-Adha in Arabic literally means "festival of the sacrifice", and for Muslims, it commemorates the day when prophet Abraham was going to sacrifice his son but was instructed by God to offer an animal instead.

Eid al-Adha is also the third day of the Hajj pilgrimage to Mecca.