Government entities in UAE generally have shorter timings when compared to the private sector, which is further shortened during Ramadan. The General Directorate of Residency and Foreign Affairs in Abu Dhabi functions from 09:00 AM till 02:00 PM on all days of the week except Friday, when it is closed.
General Directorate of Residency and Foreigners Affairs (Abu Dhabi) Ramadan Timings (Ramadan 2017 Working Hours)
