Inacurate Hijri Date Issue


The Islamic calendar system is a lunar calendar based on observation. The observation aspect of the calendar means that a new month can only be declared based on human observations of the moon, something which can obviously vary and is unsuited to computer calculation.

​The app ​implements arithmetic Islamic calendar, which is an approximation of the actual calendar. ​Thus, it wont be as accurate as the calendar declared by local authorities vary from place to place.​

However, the app does provide a tool to do manual correction to the calendar. You can find that in the app settings:

iman Settings > Hijri Date Adjustements > Add 1 day

Thank you.