The global islamic calendar dates displayed in this website is based on the following simple rule: The HilalMap service in this website isĭedicated in generating and displaying such crescent moon visibility maps that are useful in determining the beginning of islamic months. Which regions or countries on earth that can see the new crescent moon on particular evening (such as those displayed above). The calculations can be visualised as crescent moon visibility maps that show

Technically, the global sighting probability of the crescent moon on particular day is calculated based on the worksīy scientists and astronomers that studied and collected reliable crescent moon sighting reports from around the world, Since there will always be regions where the crescent moon will not be visible on the day it will be visible in other regions. Following local moonsighting, on the other hand, will never unite the whole muslim ummah, Since the direction was addressed to the whole ummah, then a sighting of the crescent moon in one location,Īny where on earth, within one particular day, is sufficient to start the new islamic month.įollowing this general direction is the only way in formulating a global islamic calendar that can unite the whole muslim populations around the world. It is based on the general direction given by the Prophet Muhammad (peace be upon him) to begin and end islamic months by sighting The global islamic calender is calculated based on global crescent moon sighting probability in the beginning of each islamic months. You can convert between Christian Era/Gregorian calendar date and Islamic (Hijri) date using our Crescent Moon Visibility Map for Map of crescent moon visibilty around sunset on the beginning of islamic months.Ĭrescent moon visibility maps for other islamic hijri months can be accessed via our HilalMap page.

Months in islamic calendar