Oman Calendar is an application provided by the Ministry of Awqaf and Religious Affairs in the Sultanate of Oman. The application allows knowing the Hijri and Gregorian dates, prayer times and alerting them, knowing the shape of the moon every night, the direction of the qiblah and the mosques near the user in the Sultanate of Oman. The application provides access to the accompanying ruling and there is a special page in the application The services provided by the Ministry, in addition to the automatic alerts feature.