Discover the history, mechanics, and astronomical science behind traditional Ghurubi Islamic timekeeping (التوقيت الغروبي), anchored at Sunset (Maghrib). Learn how to accurately calculate the Last Third of the Night for Tahajjud and Suhoor, convert between Civil and Ghurubi hours, and access live 24-hour prayer schedule matrix cards with RiazHub’s free privacy-first web tool.
🌙 Islamic Time Converter & Ghurubi Solar Clock
Traditional Sunset-Anchored Timekeeping (التوقيت الغروبي) & Live Solar Watches for RiazHub.com
Ghurubi Clock (التوقيت الغروبي)
12:00:00
Sunset Anchor (المغرب 12:00)
Night
🟢 Ghurubi Hands
🔵 Civil Hands
Standard Civil Clock (التوقيت الزوالي)
12:00:00
Gregorian Local Time
24-Hour
📍 Solar Anchor & Location Coordinates
Fajr / Dawn
الفجر
04:32 AM
Sunrise
الشروق
05:54 AM
Solar Noon
الزوال / الظهر
12:22 PM
Sunset / Maghrib
الغروب (المغرب)
06:50 PM
Islamic Midnight
نصف الليل
11:41 PM
Tahajjud Start
الثلث الأخير
01:18 AM
Converted Ghurubi Time
02:40:00 Night
2 hours 40 minutes elapsed since Maghrib
Converted Standard Civil Time
10:05:00 PM
Local Gregorian Standard Time
1st Third of Night
الثلث الأول
06:50 PM - 10:05 PM
Maghrib to Isha window. Time for dinner & early rest.
2nd Third / Midnight
نصف الليل
10:05 PM - 01:20 AM
Mid-night boundary (Nisf al-Layl). End of preferred Isha time.
⭐ Last 1/3 (Tahajjud & Suhoor)
الثلث الأخير
01:20 AM - 04:32 AM
Most blessed hours for Qiyam al-Layl, accepted Duas & Suhoor.
📊 24-Hour Civil vs. Ghurubi Islamic Schedule Matrix
Live highlight on active hour| Civil Hour | Ghurubi Hour | Astronomical Solar Watch | Islamic Worship & Prayer Window | Status / Guidance |
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📚 History & Mechanics of Islamic Timekeeping
Ghurubi time (التوقيت الغروبي) is the traditional Islamic timekeeping system historically used throughout Makkah Al-Mukarramah, Al-Madinah Al-Munawwarah, and across the Ottoman Empire. Unlike modern Civil Greenwich time which resets at midnight (12:00 AM), the Ghurubi clock anchors its 12:00:00 baseline exactly at Maghrib (Sunset). Thus, every Islamic day begins at sunset.
In Islamic jurisprudence (Fiqh) and lunar calendars, night precedes the day. The new date and lunar month (such as Ramadan or Dhul Hijjah) begin when the sun dips below the horizon at sunset. Therefore, the prayers of Ramadan Tarawih are performed on the night before the first fasting day.
The Islamic night is defined as the precise duration from Sunset (Maghrib) to Dawn (Fajr) next morning. To calculate the Last Third:
According to authentic Hadith, Allah Almighty descends to the nearest heaven during this final third to answer prayers, forgive sins, and grant supplications.
Night Duration = Fajr (Next Day) - SunsetTahajjud Start = Sunset + (2/3 × Night Duration)According to authentic Hadith, Allah Almighty descends to the nearest heaven during this final third to answer prayers, forgive sins, and grant supplications.
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