Al-Qaideen is a free application for Android smartphones that lets you calculate the times for all the prayers. The app contains a list of all the cities that are considered to be the centers of the religious beliefs in Syria, and they all have their own prayer times. The app can also be used to calculate the times for any day and date. In addition, it supports the concept of daylight saving and the idea of adding or subtracting a number of minutes to the hours. It is based on the Hijri calendar, which is used in most of the mosques in Syria.

The Hijri calendar is based on the idea that the earth is flat, and that the sun rises and sets in a particular direction.