Discover the definitive astronomical, mathematical, and jurisprudential guide to calculating Isha prayer times, Red Twilight (Shafaq al-Ahmar), White Twilight (Shafaq al-Abyad), true Islamic Midnight (Nisf al-Layl), and the blessed Last Third of the night (Thuluth al-Layl) for Tahajjud. Learn why civil 12:00 AM midnight is irrelevant to Islamic prayer, how solar depression angles between 12° and 20° are derived using spherical trigonometry, and how high-latitude regions resolve persistent summer twilight using classical Fiqh rules (One-Seventh, Angle-Based, and Night Middle methods). Includes authoritative comparisons of Umm al-Qura, MWL, ISNA, and Karachi calculation standards.
Universal Isha Time, Shafaq Twilight & Midnight Studio
Authoritative spherical trigonometry prayer calculations. Accurately determines Red Twilight disappearance (Shafaq al-Ahmar), White Twilight (Shafaq al-Abyad), Islamic Midnight (Nisf al-Layl), and the Last Third (Thuluth al-Layl) with advanced high-latitude solar depression modes.
Calculating...
Preferred end time for Isha prayer
Prime hour for Qiyam al-Layl
Night Length: ~11h 14m
| Date | Day | Maghrib | Red Shafaq (12°) | Isha Start | Islamic Midnight | Last Third (Tahajjud) | Fajr Dawn |
|---|
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📚 The Science of Red Twilight (Shafaq) & Islamic Jurisprudence
Traditional Imām Abū Hanīfah view: Isha begins when Shafaq al-Abyad (the lingering white twilight) disappears completely, requiring a solar depression angle of 17.5° to 18°.
T_midnight = T_maghrib + (T_fajr - T_maghrib) / 2
According to sound hadiths in Sahih Muslim, offering the Isha prayer before this midpoint is the preferred window (Waqt al-Ikhtiyar).
It is calculated by partitioning the total night span into three equal segments:
T_last_third = T_maghrib + 2 * (T_fajr - T_maghrib) / 3
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