Calculation Methods
From Pray Times
There are different conventions for calculating prayer times. The following table lists several well-known conventions currently in use in various regions:
| Method | Abbr. | Region Used |
|---|---|---|
| Muslim World League | MWL | Europe, Far East, parts of US |
| Islamic Society of North America | ISNA | North America (US and Canada) |
| Egyptian General Authority of Survey | Egypt | Africa, Syria, Lebanon, Malaysia |
| Umm al-Qura University, Makkah | Makkah | Arabian Peninsula |
| University of Islamic Sciences, Karachi | Karachi | Pakistan, Afganistan, Bangladesh, India |
| Institute of Geophysics, University of Tehran | Tehran | Iran, Some Shia communities |
| Shia Ithna Ashari (Ja`fari) | Jafari | Parts of US and Middle East |
Calculating Parameters
The table below shows the default calculating parameters for each calculation method:
| Method | Fajr Angle | Isha Angle | Maghrib Angle | Midnight |
|---|---|---|---|---|
| MWL | 18 | 17 | = Senset | mid Sunset to Sunrise |
| ISNA | 15 | 15 | = Senset | mid Sunset to Sunrise |
| Egypt | 19.5 | 17.5 | = Senset | mid Sunset to Sunrise |
| Makkah | 18.5 | 90 min after Maghrib 120 min during Ramadan | = Senset | mid Sunset to Sunrise |
| Karachi | 18 | 18 | = Senset | mid Sunset to Sunrise |
| Tehran | 17.7 | - | 4.5 | mid Sunset to Fajr |
| Jafari | 16 | - | 4 | mid Sunset to Fajr |
Note: Fajr angle was 19 degrees in Umm al-Qura method before Muharram 1430 Hijri (December 2008).
