Muslims are set to celebrate Eid al-Fitr at the end of Ramadan on Saturday or Sunday, a month of fasting during the daytime to deepen devotion to Allah.
People traditionally go to mosques and have parties with friends and family on Eid al-Fitr - although celebrations will be very different this year due to coronavirus lockdown.
Eid marks the start of the Islamic month of Shawwal, which is a month of celebration after the fasting of Ramadan.
But Eid can only begin when the crescent, or Shawwal, moon is spotted in Saudi Arabia.
What is Eid al-Fitr?
Muslims thank Allah on Eid al-Fitr for giving them the strength to keep to their daytime fast throughout Ramadan. They may also ask for forgiveness if they broke their fast during the month.
The festival is also held to give thanks to Allah for giving Muslims the Koran, the religion's holy text. The Koran provides Muslims with guidelines for living a holy life.
Has the Shawwal moon been spotted?
The moon has not been seen yet.
In Saudi Arabia and the UAE, moon sighting committees will meet remotely on Friday evening.
When it is announced that the moon has been seen, Eid al-Fitr celebrations can begin.
