get_festival_dates
shallowapp.hinducalendar/hinducalendar · Verify this server
Exact dates of major Hindu festivals for any year, computed live by the same engine the HinduCalendar app uses — never guess a festival date, always use this. Covers the tithi-anchored festivals (Diwali, Holi, Krishna Janmashtami, Ganesh Chaturthi, Rama Navami, Maha Shivaratri, Raksha Bandhan, Dhanteras, Karva Chauth, Chhath, Vasant Panchami, Gudi Padwa, Akshaya Tritiya, the purnimas, Navratri from Ghatasthapana through Vijayadashami) *and* the ones no tithi rule can express: solar ingresses (Makar Sankranti — also Pongal, Uttarayan, Maghi; Mesha Sankranti — also Vishu, Baisakhi, Puthandu), nakshatra-dated observances (Onam, the Jyeshtha Gauri triad), weekday series (Shravan Somwar, Mangala Gauri), and the Puri Jagannath sequence (Snana Yatra, Rath Yatra, Hera Panchami, Bahuda Yatra, Suna Besha, Niladri Bije). Every result carries `date` and a plain-language `rule` saying how that date is fixed, usually with a `why` explaining it, plus regions, traditions, cluster and related festivals where they are recorded. Tithi-anchored festivals also carry `masa`/`paksha`/`tithi`; solar and nakshatra ones do not, because they have none. Two results are not single days: • one that recurs within the year (Shravan Somwar is four or five Mondays) carries `dates` with every occurrence — `date` is the first; • a multi-day observance (Ganeshotsav, Navratri) carries `end_date` and `days`. Example questions: "when is Diwali in 2027?", "what date was Holi in 1962?", "list all festivals in 2026", "when is Onam?", "which Mondays are Shravan Somwar this year?". Args: year: Gregorian year. festival: Optional name filter — fuzzy, and matches popular and regional aliases plus Devanagari ("Diwali", "Dussehra", "Rakhi", "Pongal", "Vishu", "दिवाली"). A sequence name ("Navratri", "Ganeshotsav", "Rath Yatra") returns every festival in that sequence. lat, lon, tz_offset_hours: Location (default Ujjain, the canonical reference). Festival days can shift by location; for a user's city pass their coordinates.
1 trials · measured 8 days ago
get_festival_dates scores 100.0/100 on Vouch's measured behaviour index, from 1 real invocation trials against app.hinducalendar/hinducalendar, measured 25 Aug 2026 under methodology v0.2.0. Every measured component scored 100.
Component breakdown
| Component | Weight | Value |
|---|---|---|
| Reliability | 35% | not applicable |
| Schema integrity | 25% | 100.0 |
| Failure behaviour | 15% | not applicable |
| Latency | 15% | not applicable |
| Concurrency | 10% | not applicable |
Tool details
- Transport
- remote
- Credential class
- self-provisionable
- Input schema
- not declared
- Output schema
- not declared
- Side-effect classification
- unclassified
Score history
| Day | Score | Tier | Methodology |
|---|---|---|---|
| 2026-08-25 | 100.0 | shallow | v0.2.0 |
Probe evidence
| Probe | Outcomes |
|---|---|
| schema_integrity | pass: 1 |
Raw request/response logs are not archived yet — the outcome counts above are drawn directly from every recorded trial.
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