Question 1

How are prayer times calculated on this site?

Accepted Answer

Prayer times are computed on your device using the adhan-js library, which implements the standard astronomical formulae. All major calculation methods are supported: Muslim World League (MWL), ISNA, Egyptian, Umm al-Qura, University of Islamic Sciences Karachi, Institute of Geophysics Tehran, and Shia Ithna-Ashari (Jafari).

Question 2

Which calculation method should I use?

Accepted Answer

Use the method most followed in your region: MWL for most of Europe and the West, ISNA for North America, Umm al-Qura for Saudi Arabia and the Gulf, Karachi for Pakistan and India, Egyptian for Egypt and much of North Africa. When in doubt, follow your local masjid.

Question 3

Do my location or preferences leave my device?

Accepted Answer

No. Prayer times are computed entirely in your browser. Nothing is sent to any server. Your city preference is stored in your browser's localStorage only.

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