Arab and Islamic countries differed at the beginning of Shawwal this year. Some countries fasted Ramadan 29 days, and others fasted for 30 days.
But does this difference extend to Eid al-Adha as well? To understand the reasons for disagreement and agreement astronomically, we need to learn about the moon's rotation around the Earth. In Islamic law, the calculations of the Hijri months are based on vision, which is different from the central conjugation. The first day of Dhu al-Qa'dah is likely to fall on June 28.