The UAE Federal Authority for Government Human Resources (FAHR) has reportedly announced working hours for the holy month of Ramadan.
Staff will work from 9:00am to 2:00pm during the holy month, Khaleej Times cited the authority as saying.
Workers have been warned to be punctual but federal laws means some officials do not necessarily need to sign in for work.
Any employees as federal agencies or government departments have been told to inform their direct head if they cannot come to the office during Ramadan or require emergency leave.
Astronomers in Sharjah and Kuwait have said they expect Ramadan 2018 to begin on Thursday, May 17.
Previous predictions had suggested the holy month could start as early as Tuesday, May 15.
In March, Sharjah Centre for Astronomy and Space Sciences also said Ramadan would likely fall on May 17 with Eid Al Fitr, marking the end of the month, expected on June 15.
The UAE Cabinet set the current Ramadan work timings in 2012 under an amendment to previous regulation in 2008.