The UAE moon sighting committee was formed to sight the crescent after Maghrib prayers on Tuesday at the Abu Dhabi Judiciary Department.
According to media reports the moon was not sighted by the highly influential moon sighting committee in Saudi Arabia.
The school day during Ramadan will start between 8am to 8:30am and finish between 1pm to 1:30pm. There will be shorter breaks with no PE lessons.
Schools should ensure that the school timings should not exceed five hours.
The bus pick up and drop off time will also change accordingly.
Government departments will also have their work hours reduced during Ramadan, with timings slashed by two hours.