Monday, 2 May… First day of Eid al-Fitr in most countries

International Astronomical Center: Many countries will sight Eid Al-Fitr crescent (Shawwal 1443 AH) on Saturday, April 30, while it will be impossible to see the crescent on that day because the moon will set before the sun, in addition to conjunction after sunset.

Hence, Ramadan will probably complete 30 days, and Monday, 2 May, shall be the first day of Eid al-Fitr astronomically.