Prayer time for Mona Vale in nsw-1658. The Sallat timings are according to the Hanafi Madhab. There are differing opinions on what angle to be used for calculating Fajr and Isha. Our calculation according to Muslim World League convention. Prayer time based on Mona Vale, nsw-1658 Geo location Latitude = -33.70000 & Longitude = 151.22000.