hindu-calendar

open-source tamil calendar calculation engine using precise solar transit astronomy, lahiri ayanamsa, and the traditional 13-ghatika rule. சூரிய பெயர்ச்சி, லஹிரி அயனாம்சம் மற்றும் பாரம்பரிய 13 கடிகை விதியை அடிப்படையாகக் கொண்டு தமிழ் காலண்டர் தேதிகளை கணக்கிடும் திறந்த மூல நிரல்.

Indian calendar that covers expected festivals, government holidays and good to know days as json.

A Bikram Samvat Calendar for Android.

The open-source sky engine - astronomy-grade Sun/Moon positions, sunrise/sunset, moon phases, and Vedic panchang. Zero dependencies, MIT.

Open-source Vedic Panchang & Astrology Engine for PHP & Laravel with Kundli, Muhurta, Hindu Calendar and REST APIs.

Live in-browser demo of the grahan astronomy + Vedic astrology (Jyotish) TypeScript library: panchang, eclipses, kundali birth charts, and a Bikram Sambat calendar.

A simple utility to show the details of the day per Tamil calendar

Vedic Astronomical Audit tool.

Bharatiya calendar infrastructure — Panchang, festivals, muhurat, regional calendars

Telugu Panchangam as calendar feeds — tithi, nakshatra, muhurtams, Ekadashi and 30+ festivals for 22 cities, in Drik Ganita, Surya Siddhanta and Vakya systems. Plus an MCP server for AI assistants.

Timelines that don't invent dates: an Agent Skill for Claude + a stdlib-only Python CLI. Date windows, source conflicts, consistency checks, 8 calendars incl. the Hindu panchang.

Official code examples for DevDarsha Panchang, Horoscope and Numerology APIs. Build Vedic astrology and calendar integrations in minutes.

Daily Hindu calendar with tithi, nakshatra, sunrise timings, and festival context.

Offline Panchanga and Hindu Calendar widget for KDE Plasma 6, powered by Swiss Ephemeris. Features accurate astronomical calculations, Dharmaśāstra-based festival rules, Ghadi-Vipal time, and a modern Kirigami interface.

Malayalam Hindu calendar (പഞ്ചാംഗം) for Kerala — nakshathram, tithi, kollavarsham, festivals, Nazhika timings, and CSV export. Pure JS astronomical engine.

Ekadashi API & Web Calendar 🕉️. An astronomical calculator for accurate Ekadashi fasting dates using Sun-Moon longitude and the Arunodaya rule. Includes Telegram bot and REST API

Hindu, Sikh and Jain festival dates for 156 cities, JSON and CSV, CC BY 4.0

Hindu festival dates, tithi times and puja windows for 2026 and 2027, as open CSV, JSON and ICS (computed for Delhi, IST). Source: Bela.

🛕 Free, open-source, ad-free Hindu devotional app for Android: aarti & bhajans, Bhagavad Gita, accurate Panchang, virtual Mandir, japa mala, Rashifal. Flutter + FastAPI.

Free panchang and festival-date widgets for temple and gurdwara websites