Bharat Birthtime

Your birthday, the way the sky remembers it — the day each year the Sun and Moon return to the alignment of your birth.

🌙 Today's Panchanga ▼

Your birthday, the Indian way 🌙

The Indian calendar doesn't track Earth's orbit — it tracks the Moon. Your real Indian birthday (Janma Tithi & Nakshatra) lands on a different English date every year, just like Diwali and Janmashtami do.

👇 Enter your birth date, time, and location below — the tool will instantly show your Indian birthday for any year, with a calendar export and a shareable card.

🔒 Runs 100% in your browser 📍 No account needed 📅 Works for any year

Enter your birth details

Two fields. That's it. All computation runs in your browser — nothing is sent anywhere.

A 30-min window around this time is used.
📍 Click anywhere on the map to pin your birth location. Default: central India (23°N 80°E).
Born outside India? 

Your birth panchanga

❖ ❖ ❖

Indian birthday in

🌙 Tithi birthday — Moon's phaseThe same lunar day & fortnight, in the same lunar month as your birth. North & West India. The rule that dates Janmashtami & Diwali.
⭐ Star birthday — Moon's constellationThe day your birth nakshatra returns while the Sun is in your birth solar month. South India — Tamil Nadu, Kerala. The rule that dates Onam.
Both are authentic. Follow your family's regional custom — or observe both.

Share your Indian birthday 🪔

Type your name below to personalise the card, then tap Share on WhatsApp to send it directly — or download the image to post anywhere.

Share card preview
Also share on
Exports both Tithi & Star birthdays for the next 12 years as a single .ics file.
Each event includes a reminder the day before — so you never miss it.
Works with Google Calendar, Apple Calendar, and Outlook.

WHAT A birthday the sky remembers

In the Indian calendar your birthday is not a number on a wall calendar — it is an astronomical event. The day you were born, the Moon stood at a precise angle from the Sun (your janma tithi) and against a particular field of stars (your janma nakshatra). Your Indian birthday is the day each year when that same alignment returns — exactly the way Diwali, Janmashtami and Onam do.

Solar year 365¼ days Lunar year (12 months) 354 days ≈ 11 ~11 days earlier each year Every ~3 years: Adhika Masa (leap month) corrects the drift
The lunar year is ~11 days shorter than the solar year — so your tithi birthday moves roughly 11 days earlier in the Gregorian calendar each year, until a leap month pulls it back.

HOW The calculation

Tithi — the Moon's phase angle. A tithi is one of 30 lunar days, each spanning exactly 12° of the Moon's elongation from the Sun. The first 15 tithis form the bright fortnight (shukla paksha, new → full moon); the next 15 form the dark fortnight (krishna paksha). Lunar months are named by which solar transit (sankranti) falls within them. Your tithi birthday each year is the day that tithi prevails at local sunrise — the classical panchanga rule.

Each 12° arc = one tithi. Gold = Shukla paksha (waxing), teal = Krishna paksha (waning). The white dot marks the Moon's position at your birth tithi.

The Moon's visible shape through the 30 tithis — your janma tithi is the phase at your birth

Nakshatra — the Moon's star field. The sidereal zodiac is divided into 27 nakshatras of 13°20′ each. Each nakshatra has 4 padas. The Moon spends roughly one day in each. Your star birthday is the day your janma nakshatra recurs while the Sun is in your birth sidereal solar month.

27 nakshatra segments around the zodiac. The gold segment is your birth star. The Moon traverses all 27 in ~27.3 days.
Moon orbiting Earth through the nakshatras

Watch the Moon move through the 27 nakshatra bands (outer ring) and its phase relative to the Sun (right). Your birth moment can be pinned here once you enter your details above.

WHY Why this is profound

The Gregorian date records how many times the Earth has completed an orbit since an administrative epoch. The tithi–nakshatra reckoning records something else: it brings you back, once a year, to the same relationship between Sun, Moon and stars that held at your birth. Your birth is an event in the cosmos, not a row in a register.

Every Indian sacred anniversary works the same way. Rama's birthday is Chaitra Shukla Navami, Krishna's is Shravana Krishna Ashtami, Hanuman's is a Purnima — none are Gregorian dates. Observing your janma tithi places your birthday inside the same living calendar that has carried these observances unbroken for millennia.

In ritual: the janma tithi is the day for ayushya homa, janma-tithi puja, temple visits, and feeding others. Milestone ceremonies — shashti-abda-poorthi (60th year), sahasra chandra darshana (seeing the 1000th full moon, ~80th year) — are fixed by tithi and star, never by English date.

The two rarely coincide. When your Gregorian birthday and tithi birthday fall on the same day — roughly once every 19 years (the Metonic cycle) — it is considered especially auspicious. When they do, the cosmos and the calendar have aligned for you.

NOTES Accuracy & conventions

This page uses the amanta (new-moon-ending) month convention standard in South and West India. Sunrise is computed for your entered birth coordinates — enter them in the form above for maximum accuracy, especially for locations outside India. Sidereal positions use the Lahiri ayanamsa (Indian national standard). In edge cases (kshaya tithi, nakshatra recurring twice, birth time near a boundary) traditions differ; a local panchanga or purohit is the final authority.

FAQ Common questions

I don't know my exact birth time — how much does it matter?▾
For most people, birth time matters only if you were born near a tithi boundary — i.e., when the Moon was transitioning from one tithi to the next. A tithi lasts between 20 and 26 hours on average, so for the majority of births, any time within a ±3 hour window gives the same result. The 30-minute window indicator at the top of the results will warn you if your birth time is near such a boundary. If it warns you, try times 30 minutes either side and see if the tithi changes.
Tithi birthday or Star birthday — which should I observe?▾
It depends on your regional and family tradition. North and West India (UP, Rajasthan, Maharashtra, Gujarat) predominantly observe the Tithi birthday. South India — Tamil Nadu, Kerala, Karnataka, Andhra — observe the Nakshatra (Star) birthday. There is no "more correct" answer. Both are rooted in the same panchanga system; they simply track different celestial reference points. If your family does puja on a specific day each year, that is the method to follow. You may also observe both.
My family says a different month/tithi — why?▾
This usually comes down to the Amanta vs Purnimanta convention. This page uses Amanta (month ends at new moon), standard in South and West India. North Indian panchanga uses Purnimanta (month ends at full moon). If you were born in the waning fortnight (Krishna paksha), your masa name will differ by one month between the two systems. Use the "North India — Purnimanta" checkbox in the form to see the North Indian month name. Also, local panchanga variations and the exact moment of sunrise at your location can cause a single-tithi difference.
Is this the same as my Western astrology horoscope?▾
No. Western astrology uses the tropical zodiac (positions relative to the Sun's equinox) and focuses primarily on the Sun sign. Indian Jyotisha uses the sidereal zodiac (positions relative to fixed stars) and places central importance on the Moon sign (rashi) and the birth nakshatra. This page computes the panchanga — the calendar dimension of Jyotisha — not a full birth chart (which additionally requires the Ascendant, all nine planet positions, and house calculations).
Why does my Indian birthday move every year in the English calendar?▾
A lunar year is about 354 days — roughly 11 days shorter than the solar year. So your tithi birthday drifts 11 days earlier in the Gregorian calendar each year. After about 3 years, a leap month (Adhika Masa) is inserted, pulling it forward again. Over 19 years (the Metonic cycle), the cycle returns almost exactly to where it started. This is completely normal and expected — it's the same reason Eid, Diwali, and Easter all "move" relative to the Gregorian calendar each year.
How accurate is this calculation?▾
For dates from about 1900 to 2099, the calculations should be accurate to within one tithi for the vast majority of births. The Moon position uses the 57-term Meeus series (accurate to ~0.01°) and the Lahiri ayanamsa (India's national calendar standard). Sunrise uses a 3-iteration NOAA algorithm accurate to within 1–2 minutes. For births within about 30 minutes of a tithi or nakshatra boundary, a 1-unit uncertainty remains — in those cases, your local panchangam or the astrologer who calculated your original horoscope is the final authority.

ABOUT About this page

Bharat Birthtime makes the ancient Indian panchanga calendar accessible to anyone — no jyotishi needed for the basic question of "what is my Indian birthday this year?"

All computation runs entirely in your browser. No data — birth date, time, or location — is sent to any server. The page works offline once loaded.

What powers the calculations:

Meeus 57-term Moon series Lahiri Ayanamsa (official Indian standard) NOAA sunrise algorithm (3-iteration) Open Location Code (Plus Code) decoder OpenStreetMap / Nominatim geocoding

Reference: Jean Meeus, Astronomical Algorithms, 2nd ed., Willmann-Bell Inc., 1998.

✦ Did you know?

🌙
27 stars, 30 lunar days

The Moon's sidereal period (27.3 days, nakshatras) and synodic period (29.5 days, tithis) are different — which is why there are 27 nakshatras but 30 tithis. The two cycles drift relative to each other, creating the rich variety of panchanga combinations.

🔄
The Metonic cycle was known in India first

The 19-year cycle (235 lunar months ≈ 19 solar years) was built into the Vedic calendar long before the Greek astronomer Meton of Athens documented it in 432 BCE. Indian astronomers used it to time the insertion of adhika masas across 19-year cycles.

🪔
Every major festival is a tithi

Diwali = Ashwina Amavasya. Janmashtami = Shravana Krishna Ashtami. Ram Navami = Chaitra Shukla Navami. Holi = Phalguna Purnima. None of these are Gregorian dates — they're recurring astronomical events, which is why they "move" every year.

⭐
Your nakshatra determines your Mahadasha

In Jyotisha (Vedic astrology), the nakshatra the Moon occupied at birth determines your starting planetary period (Mahadasha) in the Vimshottari Dasha system — a 120-year cycle of 9 planetary periods that underpins all predictive astrology.

💍
Nakshatra matching for marriage

Traditional Indian matchmaking uses "Ashtakoota" — 8 factors scored using birth nakshatras. Of 36 possible points, a score of 18+ is generally considered compatible. The nakshatra of both partners determines 6 of the 8 factors.

📅
Adhika masa: the leap month

Every 32.5 months, the Indian calendar inserts an entire extra month to keep lunar and solar years aligned. A month becomes "Adhika" (intercalary) when no solar transit occurs within it. In 19 years, there are exactly 7 adhika masas.

🌅
Sunrise determines the day

A tithi "belongs to" the day on which it is running at local sunrise — not midnight. This means your Indian birthday depends on your birth location. Two people born minutes apart across a time zone boundary may have different tithi birthdays in some years.

🧭
North vs South: same day, different name

In the Amanta system (South & West India) months end at new moon. In Purnimanta (North India) they end at full moon. For someone born in the Krishna paksha (waning fortnight), the month name differs between systems — same day, different calendar label.

🌙 Stay connected

WhatsApp Channel

Breeze under the Banyan is a space for those drawn to spirituality, ancient science, and contemplative living. The Janma Tithi reminder is just one thread in a richer conversation.

Follow Breeze under the Banyan

Browser Reminders

Get a silent notification on this device a day before your Janma Tithi each year. Works in Chrome and Edge on desktop and Android. No app required.

Share your birth profile with family — they can open it pre-filled

✉ Contact & Feedback

Have a question about your panchanga results, found an error, or want to share feedback? We'd love to hear from you.

Email
studioofgigil@gmail.com

Before writing to us:

  • Make sure you've entered birth time as accurately as possible
  • Use the map pin for best location accuracy
  • Check the FAQ section — your question may be answered there
  • For ritual decisions, always confirm with your local panchangam or purohit

🔒 All calculations run entirely in your browser. No personal data is ever transmitted or stored by this page.

🔗 Share Bharat Birthtime

Know someone who'd love to find their Indian birthday? Share this page with them.

WhatsApp Twitter / X Facebook LinkedIn