حي على الصلاة
"Come to prayer" — from the Adhan
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Understanding Islamic prayer times and calculations
What is a Prayer Calendar?
A prayer calendar (or Salah calendar) provides Muslims with the exact times for the five daily prayers: Fajr, Dhuhr, Asr, Maghrib, and Isha. These times change daily based on the sun's position and vary by geographical location.
School (Madhab)
The school setting affects how Asr prayer time is calculated:
- Shafi: Asr begins when an object's shadow equals its height plus the shadow length at noon. Used by Shafi'i, Maliki, and Hanbali schools.
- Hanafi: Asr begins when an object's shadow equals twice its height plus the shadow length at noon. Results in a later Asr time.
Calculation Method
Different Islamic organizations have established prayer time calculation conventions. The main differences are in the Fajr and Isha angles used:
- Muslim World League: Fajr 18°, Isha 17°. Widely used default.
- ISNA: Fajr 15°, Isha 15°. Common in North America.
- Umm Al-Qura: Fajr 18.5°, Isha 90 min after Maghrib. Used in Saudi Arabia.
- Egyptian: Fajr 19.5°, Isha 17.5°. Used in Africa and parts of Middle East.
Choose the method used by your local mosque or Islamic organization for consistency.
Calendar Calculation Method
This determines how Islamic (Hijri) dates are calculated for your calendar events:
- HJCoSA: Hijri Calendar Committee of Saudi Arabia. Based on moon sighting announcements.
- Umm al-Qura: Official Saudi calendar used for civil purposes. Calculated astronomically.
- Diyanet: Turkish Presidency of Religious Affairs calculation method.
- Mathematical: Pure astronomical calculation without regional adjustments.
Using Your Calendar
The calendar link can be subscribed to in most calendar applications including Google Calendar, Apple Calendar, and Microsoft Outlook. This allows you to receive notifications for prayer times throughout the day.
Outlook Support?
If you are using Outlook.com or the Outlook desktop application and are experiencing issues with the calendar link automatically subscribing or updating, please use the following workaround:
- Copy the calendar link provided to you.
- Paste the link into any web browser and press Enter. This will download the .ics calendar file.
- Upload the .ics file manually into your Outlook calendar.
For step-by-step instructions, see our video guide.