- Open data
Open data
The panchang, open to anyone who credits it
Kalava's computed panchang and festival dates are free to use under CC BY 4.0, for temples, developers, researchers and anyone building something good.
The panchang, as JSON
Any day's panchang at any of Kalava's towns: the five limbs with their ends, sunrise, sunset, moonrise and moonset, and the windows of the day, each as a local time and an ISO instant.
GET https://kalava.app/api/panchang?town=new-york&date=2026-10-28
Towns: /data/web/towns.json. Festivals at a town: /api/festivals?town=london&year=2027. The accuracy study: /data/web/accuracy.json.
Licence
Creative Commons Attribution 4.0. Credit "Kalava (kalava.app)" with a link where the data is shown. Please cache it; requests are limited to keep the service free.
Festival calendars
The festivals of a tradition at a town as a calendar your phone can subscribe to: names and dates only. Subscribe