Precise methods for calculating lunar month MUSCAT: The Sultanate follows an accurate arithmetical approach for monitoring lunar months and the Ministry of Awqaf and Religious Affairs, represented by the Main Moon Sighting Committee, applies a precise method for calculating the crescents. In an interview with Oman News Agency (ONA), Ibrahim bin Mohammed al Mahrouqi, head of the crescents monitoring department at the ministry, said that the Sultanate’s method for monitoring the lunar months is no different from that applied by most Arab world countries i.e.. the direct sighting of the moon either by the naked eye or by using a telescope.