Your Janma Tithi is the lunar day that was running at the exact moment of your birth. The tithi is the first of the five limbs of the Panchang: every 12° that the Moon gains on the Sun makes one tithi, so a lunar month holds 30 of them — 15 in the waxing Shukla Paksha from new moon to full, and 15 in the waning Krishna Paksha back to the new moon.

Each tithi has a presiding deity — Agni for Pratipada, Gauri for Tritiya, Ganesha for Chaturthi, and so on — and belongs to one of five repeating groups that colour its temperament: Nanda (joy), Bhadra (wholesome), Jaya (victory), Rikta (sharp), and Purna (complete). The birth tithi is read as the emotional keynote of the chart, since it captures the exact relationship of the Moon (mind) to the Sun (soul) at birth. In many traditions the tithi — not the calendar date — is the day on which the birthday is celebrated each year.

What this calculator shows

• Your birth tithi (out of 30) with its paksha and presiding deity
• Its group — Nanda, Bhadra, Jaya, Rikta, or Purna — and classical nature
• The Moon's phase and approximate illumination at birth
• How far the tithi had progressed when you were born
• Sun and Moon positions, Moon sign, Nakshatra, and the full Panchang of the birth moment

For an accurate result, enter your exact time of birth and select your birth city from the dropdown so the coordinates and timezone are correct. A Rikta or Amavasya birth tithi is not a verdict — it marks an intense temperament with classical remedies of its own; consult a qualified astrologer to read it alongside the full chart.