Please be advised that no moon was sighted around the world last night.
Hence, in accordance with the Hadith of the Messenger صلى الله عليه وسلم:
“Fast when you see it (ie crescent of Ramadhan) and break fast when you see it (ie crescent of Shawwal). And if it is cloudy then complete the month (ie Shaabab) to 30 days”.
Therefore, Saturday 28th June is the 30th Shaaban and Sunday 29th June will be the 1st day of Ramadhan (I.e. the first day of fasting).