Official Saudi Supreme court announcement :
1st Dhul-Hijjah will be Monday 19th June.
The Day of ‘Arafah (9th Dhul-Hijjah) is on Tuesday 27th June.
Therefore:
‘Eid Al-Adhā 1444H (10th Dhul-Hijjah) is on Wednesday 28th June.
The following 3 days (11th, 12th &, 13th) are the Days of Tashrīq also ‘Eid days.
— Inshaa’-Allah.