The Moon was not sighted on Tuesday evening. Eid-ul-Fitr will be celebrated on Wednesday, May 13 2021 which will mark the end of Ramadan 2021.
Saudi Arabia is celebrating Eid-ul-Fitr, the first day of the Islamic month of Shawwal. On this day, Muslims will try to sight the crescent moon. If it is sighted, then people will celebrate Eid on May 12, 2021. If not, then Eid will be celebrated on May 13, 2021.
Saudi Arabia has called on Muslims in the United Arab Emirates, Qatar, and other Arab states to see the moon on Tuesday evening at sundown. The moon sighting will mark the beginning of Eid-ul-Fitr and will end the month of Ramadan.
While the Gregorian calendar is a solar calendar, the Islamic calendar is based on the sighting of the moon every year. Since this is based on the lunar calendar, it varies from country to country by about one-and-a-half days.
Saudi Gazette has announced that Eid-Al-Fitr will be observed on Friday 14th May, due to the sighting of the crescent moon on Thursday 13th May. However, many may choose to celebrate it on Wednesday 13th May, because it does not begin fasting until Thursday 13th May.