What time is Tahajjud calculated?

Tahajjud is calculated by measuring the total hours between Sunset (Maghrib) and Dawn (Fajr), dividing by 3, and adding 2/3 of the total night duration to Sunset. The remaining 1/3 before Fajr is the Last Third of the Night.

Is Islamic Midnight at 12:00 AM?

No. In Islamic jurisprudence (Fiqh), Islamic Midnight is the exact midpoint between Sunset (Maghrib) and Dawn (Fajr). For example, if Sunset is 7:00 PM and Fajr is 5:00 AM, Islamic Midnight occurs at 12:00 AM, but if Sunset is 8:00 PM and Fajr is 4:00 AM, Midnight is at 12:00 AM sharp.

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Tahajjud Calculator Online

Calculate the exact start of the Last Third of the Night and Islamic Midnight based on your local Sunset and Fajr times.

Sunset / Maghrib Time

Dawn / Fajr Time (Next Day)

✨ Your Night Calculation Results

Total Night Length

Islamic Midnight

Tahajjud Start Time

Maghrib (Sunset) Islamic Midnight Tahajjud Begins Fajr (Dawn)

How to Calculate Tahajjud Time (The Formula)

The night in Islamic jurisprudence begins precisely at Maghrib (Sunset) and ends at Fajr (Dawn). To calculate the starting time for the Last Third of the Night (when Tahajjud prayer is most virtuous):

Calculate Total Night Duration: Subtract Maghrib time from Fajr time (e.g. 7:30 PM to 5:15 AM = 9 hours 45 minutes).
Divide by 3: Divide the total night duration by 3 (e.g. 9h 45m ÷ 3 = 3 hours 15 minutes).
Subtract One Third from Fajr: Subtract 1/3 of the night from Fajr time (5:15 AM - 3h 15m = 2:00 AM Tahajjud Start).

Want a complete step-by-step breakdown with authentic Hadith virtues? Read our detailed guide: How to Calculate Tahajjud Time (Step-by-Step Guide) ➔