Panchang API Accuracy: VedIntel vs Drik Panchang (New Delhi, 2026)
Checked against Drik Panchang for New Delhi, 2026: VedIntel matches every date we tested (12/12 Amavasya, 13/13 Purnima, 24/24 Ekadashi, 19/19 major festivals), puts all 98 published tithi start and end times within 2 minutes, and its 2026 new and full moon times are within 40 seconds of the US Naval Observatory.
Results at a glance
| Check (New Delhi, 2026) | Result |
|---|---|
| Amavasya dates | 12 / 12 match Drik; lunar month names (purnimanta) 12 / 12 |
| Purnima dates | 13 / 13 match Drik |
| Ekadashi dates and names (Drik's Smartha list) | 24 / 24 match |
| Major festival dates | 19 / 19: the API returns exactly one date for each festival, and it's Drik's date |
| Tithi start and end times on Drik's 2026 Amavasya, Purnima and Ekadashi lists (98 times) | 98 / 98 within 2 minutes of Drik's displayed time. VedIntel is later every time, by 29 s to 1 min 41 s (mean 1 min 3 s) |
| New and full moons, 2026 (25 events): VedIntel's Amavasya/Purnima end time vs USNO | 25 / 25 within 40 s (mean +4 s, range −20 s to +38 s) |
Method
VedIntel:the live production API on 22 Oct 2026 (about 13:12 UTC), read-only calls with default settings (Lahiri ayanamsa, mean node), at Drik's own New Delhi coordinates: lat=28.6356, lon=77.2244, tz=5.5. Calls: panchang/amavasya-dates, panchang/purnima-dates, panchang/ekadashi and panchang/festivals with year=2026. The API returns UTC; times are compared in IST.
Drik Panchang:pages for "New Delhi, India", saved 20 Oct 2026, with Drik's "Lahiri Ayanamsha" setting. Drik shows times in hours and minutes.
US Naval Observatory:USNO's 2026 Moon phases (UT, whole minutes). Its 12 new moons and 13 full moons are compared with the end of VedIntel's Amavasya and Purnima tithis, which are the same astronomical instants.
Matching rules:dates and names must match exactly. A festival counts only if the API returns a single date for it and that date is Drik's. In 4 Amavasya months and 4 Purnima months Drik lists two days; there, "match" means the API's date is one of them.
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