Panchang data made simple for developers and AI agents.

Accurate calculations. Affordable pricing. Designed for developers.

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Iterate faster

Unblock building your panchang app

Timezones are hard. We ensure data integrity while you ship features.

Essential panchang events.
Vara, tithi, karana, nakshatra, yoga, paksh, lagna, rashi and more.
Precise, consistent time data.
Sourced from the Government of India Meteorological Department and formatted according to ISO 8601 standard.
Regional calendars.
Convert between national and regional calendar systems.
Localization.
Support your users' preferred languages.
-zsh
vi
~% curl -H "Accept: application/json" \
>  "https://api.kaalchakra.dev/v1/panchang?language=hi&auth=$TOKEN" \
>  | jq '.angas | .tithi'
{
  "name": "Tritiya",
  "localized_name": "तृतीया",
  "ends_at": "2025-09-10T15:39:00+05:30"
}
~%

Developer tools for shipping with confidence

Built for developers by developers.

REST API

Highly available and easy to use

Reliable, RESTful JSON endpoints and a data model that's easy to understand

Documentation

Context for humans and AI agents

Concise, descriptive docs define technical panchang terminology, show usage and examples

Support

Invested in customer success

We're here for all your bug reports, feature requests and questions about intercalary months

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Predictable pricing, for everyone.

Affordable monthly rates and unlimited requests.

Starter

For applications with no localization requirements

$10

  • 30-day free trial
  • Today's panchang REST API
  • Romanized Sanskrit
  • Unlimited requests
  • Email support
Get started

Pro

For applications that support multiple Indian languages

$15

  • 30-day free trial
  • Today's panchang REST API
  • All supported languages
  • Unlimited requests
  • Email support
Get started

Frequently asked questions

    • Is Kaalchakra an astrology service?

      No. The Kaalchakra API serves calendar data in accordance with traditional Hindu systems for reckoning the passage of time, however we do not offer astrological interpretations of the data.

    • How do time zones affect panchang calculations?

      Of the five traditional Hindu components of time, only the solar day, or vara, is dependent on the time zone of the observer, while the other four are calculated based on the positions of the sun, moon and center of the earth. The Kaalchakra API returns timestamps converted to the client time zone, defaulting to IST if none is specified.

    • What languages are supported?

      Currently, Hindi and Bengali, with more in the near future.

    • What regional calendars are supported?

      Currently, the Bengali calendar, with more on our roadmap.

    • What if I need calendar data for future dates?

      Stay tuned: We're working on monthly and annual panchang data offerings.

    • Are holidays and dates of pujas included?

      Yes. Holidays and days of observance recognized by the Government of India are surfaced in the Kaalchakra API.