Discover the exact dates of the Day of Ashura (10th of Muharram – عاشوراء), Tasu’a (9th of Muharram – تاسوعاء), and the 11th of Muharram across 1440 AH to 1460 AH (2018 CE to 2038 CE) using RiazHub’s client-side astronomical projection engine. This comprehensive companion combines official Umm al-Qura (Saudi Arabia / Makkah) ephemeris tables with global crescent sighting criteria, astronomical calculation modes, and a manual regional offset calibration stepper (-2 to +2 days). Features include a real-time live countdown HUD, automated GPS-based Subh Sadiq (dawn) to Sunset (Maghrib) daylight fasting duration calculators, authentic 3-tier Sunnah fasting planners, a rich historical dossier (Prophet Musa’s deliverance from Pharaoh, the Ark of Nuh, and the martyrdom of Imam Husayn at Karbala) with Arabic audio narrations, instant 1-click iCalendar (.ics) synchronization with pre-fast alarms, and an in-browser 1200×630 social reminder card studio all running 100% privately in your browser without external library dependencies.
✨ Sacred Month of Muharram
🌙 1300 AH – 1600 AH (300-Year Projection)
🔒 100% In-Browser Privacy
Universal Ashura Date Calculator & Fasting Studio
Calculate the exact dates of Tasu'a and Ashura (9th, 10th & 11th Muharram) across 300 years (1300 AH to 1600 AH / 1882 CE to 2174 CE), track live countdowns, compute local daylight fasting hours, explore historical narrations, and sync calendar reminders in real time.
Next Day of Ashura
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10 Muharram
Live Countdown
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Until 10th Muharram Dawn
Tasu'a Pre-Fast Day
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9 Muharram (Most Recommended Sunnah)
Spiritual Virtue
كفارة سنة ماضية
Expiates sins of the preceding year
⚙️ Projection Engine Controls
Dual Lunar-Solar
AH
CE
🌟 9th & 10th Muharram (Tasu'a + Ashura)
Most Recommended — Follows the Prophet's ﷺ intention
Sunnah A
10th & 11th Muharram (Ashura + Day After)
Alternate Sunnah if 9th was missed
Sunnah B
✨ 9th, 10th & 11th Muharram (Sacred Triptych)
Complete 3-day spiritual immersion & safeguards
Sunnah C
10th Muharram Only (Core Fast)
The primary Day of Ashura
Core
📍 Fasting Location & Twilight Angle
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9th Muharram
Tasu'a (تاسوعاء)
Wed, Jun 24, 2026
Sunnah pre-fast pairing
10th Muharram
Day of Ashura (عاشوراء)
Thu, Jun 25, 2026
Expiation of prior year
11th Muharram
Day Following Ashura
Fri, Jun 26, 2026
Alternate / 3-day completion
🌅 Local Day of Ashura Fasting Window (10 Muharram)
Coordinates: 21.42°N, 39.83°E
Suhoor Cutoff / Fajr
04:12 AM
Subh Sadiq (Start of Fast)
Sunrise (Shuruq)
05:38 AM
Solar disc clears horizon
Solar Noon (Zawal)
12:25 PM
Sun crosses local meridian
Asr Prayer
03:45 PM
Shadow equal to object
Iftar / Maghrib
07:08 PM
Sunset (Break Fast)
Total Fasting Duration: 14h 56m
From Fajr (04:12 AM) to Maghrib (07:08 PM)
🕊️ Expiation of Previous Year's Sins
Sahih Muslim 1162
سُئِلَ رَسُولُ اللهِ ﷺ عَنْ صَوْمِ يَوْمِ عَاشُورَاءَ فَقَالَ: «يُكَفِّرُ السَّنَةَ المَاضِيَةَ»
"Su'ila Rasulullahi ﷺ 'an sawmi yawmi 'Ashura'a fa-qala: 'Yukaffiru as-sanata al-madiyata'."
The Messenger of Allah ﷺ was asked about fasting on the Day of Ashura, and he said: "It expiates the sins of the preceding year." (Sahih Muslim 1162).
🌊 Deliverance of Prophet Musa (Moses) from Pharaoh
Sahih al-Bukhari 2004
«نَحْنُ أَحَقُّ بِمُوسَى مِنْكُمْ» فَصَامَهُ وَأَمَرَ بِصِيَامِهِ
"Nahnu ahaqqu bi-Musa minkum, fasamahu wa-amara bi-siyamihi."
When the Prophet ﷺ arrived in Madinah, he found the Jews fasting on Ashura. They said: "This is a blessed day on which Allah saved the Children of Israel from their enemy, so Musa fasted on it." The Prophet ﷺ said: "We are closer to Musa than you." So he fasted on it and commanded that it be fasted.
🌙 Intention to Fast the 9th (Tasu'a) Alongside the 10th
Sahih Muslim 1134
«لَئِنْ بَقِيتُ إِلَى قَابِلٍ لَأَصُومَنَّ التَّاسِعَ»
"La'in baqitu ila qabilin la-asumanna at-tasi'a."
The Messenger of Allah ﷺ declared regarding the Day of Ashura: "If I live until next year, I will surely fast the ninth as well" — to be distinct from other traditions and honor the complete sacred season.
🕊️ Historical Reverence & Sacred Month of Muharram
Sahih Muslim 1163 & Historical Chronology
«أَفْضَلُ الصِّيَامِ بَعْدَ رَمَضَانَ شَهْرُ اللهِ المُحَرَّمُ»
The Prophet ﷺ said: "The best of fasting after Ramadan is the month of Allah, al-Muharram." (Sahih Muslim 1163). Furthermore, on this solemn day in 61 AH, Imam Husayn ibn Ali (grandson of the Prophet ﷺ) was martyred at the Battle of Karbala, embodying standing for truth, justice, and devotion to divine principles.
📊 300-Year Multi-Century Ephemeris (1300 AH – 1600 AH)
| Hijri Year | Tasu'a (9th) | Day of Ashura (10th) | 11th Muharram | Day of Week | Season |
|---|
📖 Great Virtues of Fasting on the Day of Ashura
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The Prophet Muhammad ﷺ said: "Fasting on the Day of Ashura, I hope that Allah will accept it as expiation for the sins of the year that has gone before." (Sahih Muslim 1162). This singular act of voluntary worship erases minor sins accumulated throughout an entire lunar year, reflecting the boundless mercy of the Creator.
🌟 Why Fasting the 9th (Tasu'a) Alongside the 10th is Recommended
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Scholars emphasize the Sunnah of pairing the 10th with the 9th of Muharram (Tasu'a) based on the hadith of Ibn Abbas in Sahih Muslim 1134: "If I live until next year, I will surely fast the ninth." While the Prophet ﷺ passed away before the following Muharram, jurists across the Hanafi, Maliki, Shafi'i, and Hanbali schools agree that fasting both days distinguishes the Muslim fast and fulfills the prophetic intent (مخالفة لأهل الكتاب).
🌊 Dual Historical Significance: Prophet Musa and Karbala
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The 10th of Muharram possesses multi-layered significance in Islamic history:
1. The Victory of Truth over Tyranny: On this day, Allah split the Red Sea for Prophet Musa (Moses) and the Children of Israel, destroying Pharaoh and his armies.
2. Ark of Prophet Nuh (Noah): Classical commentaries note that the Ark rested upon Mount Judi on the Day of Ashura.
3. Martyrdom of Imam Husayn (61 AH): The beloved grandson of the Prophet ﷺ gave his life at Karbala, standing steadfast for moral integrity, divine law, and spiritual conviction.
1. The Victory of Truth over Tyranny: On this day, Allah split the Red Sea for Prophet Musa (Moses) and the Children of Israel, destroying Pharaoh and his armies.
2. Ark of Prophet Nuh (Noah): Classical commentaries note that the Ark rested upon Mount Judi on the Day of Ashura.
3. Martyrdom of Imam Husayn (61 AH): The beloved grandson of the Prophet ﷺ gave his life at Karbala, standing steadfast for moral integrity, divine law, and spiritual conviction.
🌙 Moon Sighting Conventions: Umm al-Qura vs. Regional Offsets
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The Islamic world embraces two primary methodologies for determining lunar months:
1. Umm al-Qura (Official Saudi Arabia): Based on calculated astronomical conjunction and moonset occurring after sunset at Makkah al-Mukarramah.
2. Local Crescent Moonsighting (Ru'yat al-Hilal): Dependent upon naked-eye or optical telescope sightings in local jurisdictions.
This calculator includes a dedicated manual calibration stepper (-2 to +2 days) to guarantee total accuracy regardless of which methodology your local community adheres to.
1. Umm al-Qura (Official Saudi Arabia): Based on calculated astronomical conjunction and moonset occurring after sunset at Makkah al-Mukarramah.
2. Local Crescent Moonsighting (Ru'yat al-Hilal): Dependent upon naked-eye or optical telescope sightings in local jurisdictions.
This calculator includes a dedicated manual calibration stepper (-2 to +2 days) to guarantee total accuracy regardless of which methodology your local community adheres to.
🔒 100% In-Browser Privacy & Astronomical Safety
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Every calculation, solar coordinate trigonometry, Julian Day mapping, canvas graphics drawing, and .ics file compilation executes strictly inside your personal browser. No GPS coordinates, calendar queries, or personal schedules are transmitted to external servers.
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