🌑 Amavasai
Why Amavasai Date Differs by City
Amavasai is NOT the same day everywhere! It depends on your city's sunrise.
🔬 Astronomical Truth
Amavasai = Moon-Sun conjunction (0° angle). This moment is the same globally - but the day differs based on whether it occurs before or after YOUR city's sunrise!
📍 City Difference Example
Amavasai moment: January 29, 2026 at 6:15 AM (IST)
| City | Sunrise | Amavasai |
|---|---|---|
| 🏙️ Chennai | 6:35 AM | Jan 29 ✅ |
| 🏔️ Coimbatore | 6:45 AM | Jan 29 ✅ |
| 🌆 Bangalore | 6:50 AM | Jan 29 ✅ |
* Amavasai moment before sunrise = that day is Amavasai
⚠️ Tharpanam Importance
Tharpanam on wrong day = INVALID!
Accurate Amavasai date based on YOUR city's sunrise is crucial.
📜 Udaya Tithi Siddhantam
Sunrise Rule
1
Vedic day begins at sunrise (not midnight)
2
Tithi at sunrise prevails for the entire day
3
Your city's sunrise = your correct tithi
🚫 Common Myths (Busted)
❌ "Same day everywhere"
FALSE!
✅ May differ by city due to sunrise time variations.
❌ "Night decides the day"
FALSE!
✅ Sunrise decides - Udaya Tithi Siddhantam.
📅 Check Accurate Amavasai Dates
TamilCalendar.in
Authentic Panchangam Reference