The Federal Authority for Government Human Resources said the holiday would run from Friday, July 8 until Monday, July 11.
Work will resume on Tuesday, July 12.
Eid Al Adha, known as the festival of the sacrifice, will begin on Saturday, July 9.
The Dhu Al Hijja crescent moon was sighted on Wednesday evening by Saudi Arabia’s Tumair Observatory, according to the kingdom's Supreme Court.
The sighting of the Moon marks the beginning of the Dhu Al Hijja Islamic month in which the Hajj pilgrimage is performed, followed by Eid Al Adha, which begins on the 10th day of the month.
This year, Eid Al Adha falls shortly after schools finish up for the summer holidays and airlines anticipate hundreds of thousands of people travelling during that period.
The next potential long weekend off for residents will probably be in December, for Commemoration Day and National Day.
Commemoration Day will be on November 30, with UAE National Day celebrated on December 2.
The official days off for these dates are listed as being from Thursday, December 1 until Sunday, December 4.
Source: The National