Most Muslims follow one of two approaches:
-Majority Practice: Break fast at sunset/maghrib prayer time
-Conservative Practice: Wait until the end of astronomical twilight for complete darkness

The purpose of Nightfall - ilallayl app is to pinpoint Iftar times for the Conservative Practice: By combining celestial science with real-world adaptability, Nightfall - ilallayl guarantees you fast confidently, free from doubt.

For those who fast, especially during Ramadan, breaking the fast is traditionally done at the onset of true night. Nightfall - ilallayl App uses Astronomical Twilight to detect the exact time of true night based on your area, and by waiting until the end of astronomical twilight, Nightfall - ilallayl App ensures that all residual sunlight has disappeared, avoiding any doubt and allowing you to break your fast at the exact, proper time.

The Different Phases After Sunset:

Sunset: The sun disappears below the horizon
Civil Twilight: Enough light for outdoor activities.
Nautical Twilight: Horizon details fade.
Astronomical Twilight: Sky appears dark to casual observers
End of Astronomical Twilight: Sky is completely dark, marking true night (Nightfall - ilallayl Time).

Sun (at sunset)
Horizon __*_____________
\
\
\ <-- Sun's position moves further down
\
\ <-- Civil Twilight
\ (sun 0°-6° below horizon)
\ <-- Nautical Twilight
\ (sun 6°-12° below horizon)
\ <-- Astronomical Twilight
\ (sun 12°-18° below horizon)
\ <-- True Night (Nightfall - ilallayl Time)
\ (sun 18° below horizon)

Astronomical Twilight End (True Night) Explained:

Astronomical twilight ends when the sun is more than 18° below the horizon, meaning no sunlight is visible at all—even a faint glow. This marks when the sky becomes completely dark, signaling the true beginning of the night.

Why Break the Fast at Nightfall - ilallayl Time:

1. Complete Darkness Interpretation
When the Quran mentions fasting "until nightfall" (ila al-layl), some scholars interpret this to mean complete darkness (end of astronomical twilight) rather than just sunset.
2. Caution in Worship
Some follow this timing out of religious caution (ihtiyat), ensuring they've fully completed the required fasting period. (”These are the limits set by Allah, so do not exceed them”)
3. Regional Considerations
In areas with unusual daylight patterns (like far northern countries during summer), Nightfall - ilallayl provides a clearer boundary.

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