The Amavasya Panchang Calculator computes hyper-local, astronomically accurate Amavasya (new moon) dates for any location on Earth, following the traditional Hindu Panchang sunrise-based tithi system rather than simplified date-only approximations.

Under the hood, it uses the Skyfield astronomical library together with NASA JPL's DE421 ephemeris to calculate precise Sun and Moon positions, then applies a bisection search to find the exact moment each lunar month's elongation reaches 348° (the start of the Amavasya tithi). It cross-references this against local sunrise times — computed for your exact latitude, longitude, and timezone — to determine which civil date "owns" each Amavasya, correctly handling edge cases like Kshaya tithis.

Results can be exported as an ICS calendar file for import into Google Calendar, Apple Calendar, or Outlook.

This is an independent project and is not affiliated with any religious organization. Panchang conventions can vary by region and tradition, so please cross-check important dates against your own lineage's practice where it matters.

Have feedback or spotted an issue? Use the Feedback link in the menu — we'd love to hear from you.