According to the prediction of the International Center for Astronomy, the moon of Shawwal is likely to be seen on April 20 in many Islamic countries including Saudi Arabia, United Arab Emirates, thus Eid-ul-Fitr is likely to be on April 21 in these countries.
Also Read: Eid ul Fitr 2023: Ruet-e-Hilal Committee to convene on April 20
On the other hand, astronomers say that Eid-ul-Fitr will be held in Pakistan on April 22, Saturday. According to astronomical calculations, the solar eclipse occurs on the 29th day of the moon and the new moon is visible the next day, so in the countries where the solar eclipse will be seen on April 20th, the new moon will not be visible for sure, so Eid-ul-Fitr in Pakistan will be on Saturday, April 22nd.