Islamic Calendar: Prototype of Hijri Calendar Application using Rapid Application Development Method

Hijri calendar is a calendar that is generally used as a referral of Muslims around the world to know the big day of Islam, Hijri calendar different from the Gregorian calendar because the calculation is done by calculating the movement of the moon and to get information the big day of Islam is designed a prototype calendar hijri application by applying the method Rapid Application Development so that application development can be done quickly without compromising the main features of the use and ease of porting into web or android based applications. Experiment perform to get the big day of Islam done in 2017, 2018 and 2019 with excellent and accurate results.