$ curl -H 'Accept: application/json' \
https://ahargana.org/delhi/festivals/2025/diwali-lakshmi-puja
{
"id": "/delhi/festivals/2025",
"place": {
"id": "1273294",
"slug": "delhi",
"name": "Delhi",
"region": "India",
"country": "IN",
"lat": 28.65195,
"lon": 77.23149,
"elevation_m": 227,
"tz": "Asia/Kolkata"
},
"year": 2025,
"tradition": "smarta",
"method": "pac-rp@2026.1",
"ruleset": "2026.3-draft",
"rulings": [
{
"id": "/delhi/festivals/2025/diwali-lakshmi-puja",
"festival": "diwali-lakshmi-puja",
"name": "Lakṣmī Pūjā",
"everyday": "Diwali",
"tradition": "smarta",
"place": "1273294",
"year": 2025,
"local_date": "2025-10-20",
"confidence": "boundary",
"boundary_reasons": [
"tie-break-unstated"
],
"agreement": {
"state": "differs",
"institutions": [
{
"institution": {
"id": "nse",
"name": "National Stock Exchange"
},
"local_dates": [
"2025-10-21"
],
"relation": "different"
},
{
"institution": {
"id": "google-calendar-in",
"name": "Google Calendar"
},
"local_dates": [
"2025-10-20"
],
"relation": "same"
},
{
"institution": {
"id": "apple-icloud-in",
"name": "Apple iCloud"
},
"local_dates": [
"2025-10-20",
"2025-10-21"
],
"relation": "includes"
},
{
"institution": {
"id": "rashtriya-panchang",
"name": "Rashtriya Panchang"
},
"local_dates": [
"2025-10-20"
],
"relation": "same"
}
]
},
"boundary_margin_s": 601,
"anga": {
"type": "tithi",
"index": 29,
"key": "amavasya",
"name": "Amāvasyā",
"start": {
"local": "2025-10-20T15:45:27+05:30",
"utc": "2025-10-20T10:15:27Z",
"ms": 1760955327081.2507
},
"end": {
"local": "2025-10-21T17:55:10+05:30",
"utc": "2025-10-21T12:25:10Z",
"ms": 1761049510434.19
},
"month": {
"amanta": 6,
"purnimanta": 7,
"adhika": false,
"amanta_name": "Āśvina",
"purnimanta_name": "Kārtika"
}
},
"span": {
"of": "tithi",
"start": {
"local": "2025-10-20T15:45:27+05:30",
"utc": "2025-10-20T10:15:27Z",
"ms": 1760955327081.2507
},
"end": {
"local": "2025-10-21T17:55:10+05:30",
"utc": "2025-10-21T12:25:10Z",
"ms": 1761049510434.19
}
},
"kaala": "pradosha",
"days": [
{
"local_date": "2025-10-20",
"window": {
"start": {
"local": "2025-10-20T17:46:08+05:30",
"utc": "2025-10-20T12:16:08Z",
"ms": 1760962567859.264
},
"end": {
"local": "2025-10-20T19:27:26+05:30",
"utc": "2025-10-20T13:57:26Z",
"ms": 1760968645624.3972
}
},
"covered_min": 101,
"window_min": 101,
"qualifies": true
},
{
"local_date": "2025-10-21",
"window": {
"start": {
"local": "2025-10-21T17:45:10+05:30",
"utc": "2025-10-21T12:15:10Z",
"ms": 1761048909912.453
},
"end": {
"local": "2025-10-21T19:26:41+05:30",
"utc": "2025-10-21T13:56:41Z",
"ms": 1761055000579.7822
}
},
"covered_min": 10,
"window_min": 102,
"qualifies": true
}
],
"decided_by": "greater-coverage",
"basis": {
"kind": "ruleset-fallback"
},
"explanation": [
{
"step": "anga",
"text": "Amāvasyā runs from 15:45 on Mon 20 Oct to 17:55 on Tue 21 Oct.",
"fact": "2025-10-20T10:15:27Z → 2025-10-21T12:25:10Z"
},
{
"step": "kaala",
"text": "Pradoṣa is 2 muhūrtas after sunset: 17:46–19:27 on the 20th, 17:45–19:27 on the 21st.",
"fact": "pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′"
},
{
"step": "rule",
"text": "Amāvasyā must be present during pradoṣa. It covers 101 of 101 minutes on the 20th and 10 of 102 on the 21st.",
"fact": "Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104"
},
{
"step": "tie_break",
"text": "Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.",
"fact": "priority: unstated → greater-coverage · margin 601 s"
},
{
"step": "ruling",
"text": "Lakṣmī Pūjā, Delhi, 2025: Monday 20 October.",
"fact": "confidence: boundary (tie-break-unstated)"
}
],
"rule": {
"kind": "lunar",
"id": "diwali-lakshmi-puja",
"references": [
{
"text": "Calendar Reform Committee 1955, General Rules for Religious Festivals",
"locator": "p. 104",
"url": "https://archive.org/details/calendar_reform_comittee_report",
"quote": "K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)"
}
],
"kaala": "pradosha",
"priority": "unstated",
"when_absent": "unstated"
},
"alternatives": [
{
"kind": "profile",
"profile": "classical@2026.1",
"local_date": "2025-10-20",
"confidence": "boundary"
},
{
"kind": "profile",
"profile": "compat-drikpanchang@2026.1",
"local_date": "2025-10-20",
"confidence": "boundary"
},
{
"kind": "institution",
"institution": {
"id": "nse",
"name": "National Stock Exchange"
},
"local_dates": [
"2025-10-21"
],
"statement": "Muhūrat trading, circular of 22 Sep 2025",
"source_url": "https://www.business-standard.com/markets/news/nse-to-hold-one-hour-diwali-muhurat-trading-session-on-october-21-125092200907_1.html",
"captured_at": "2026-09-11"
},
{
"kind": "institution",
"institution": {
"id": "google-calendar-in",
"name": "Google Calendar"
},
"local_dates": [
"2025-10-20"
],
"statement": "Holidays in India feed",
"source_url": "https://calendar.google.com/calendar/ical/en.indian%23holiday%40group.v.calendar.google.com/public/basic.ics",
"captured_at": "2026-09-11"
},
{
"kind": "institution",
"institution": {
"id": "apple-icloud-in",
"name": "Apple iCloud"
},
"local_dates": [
"2025-10-20",
"2025-10-21"
],
"statement": "India Holidays feed, listed twice",
"source_url": "https://calendars.icloud.com/holidays/in_en-in.ics",
"captured_at": "2026-09-11"
},
{
"kind": "institution",
"institution": {
"id": "rashtriya-panchang",
"name": "Rashtriya Panchang"
},
"local_dates": [
"2025-10-20"
],
"statement": "Principal festivals, 2025-26",
"source_url": "https://packolkata.imd.gov.in/rashtriya-panchang-english.php",
"captured_at": "2026-11-10"
}
],
"quote": "In Delhi, Lakṣmī Pūjā (Diwali) 2025 falls on Monday 20 October. Amāvasyā runs from 15:45 on Mon 20 Oct to 17:55 on Tue 21 Oct and covers all of pradoṣa that evening. It also reaches the next evening for 10 minutes; the rule does not say which to take, and the one covered longer is ruled. The rule does not settle this date cleanly. Contested: National Stock Exchange recorded 21 October (Muhūrat trading, circular of 22 Sep 2025). Apple iCloud recorded 20 October and 21 October (India Holidays feed, listed twice).",
"cite": "https://ahargana.org/delhi/festivals/2025/diwali-lakshmi-puja",
"method": "pac-rp@2026.1",
"engine": {
"version": "0.1.0",
"ruleset": "2026.3-draft",
"kernel": "de440-1900-2100",
"kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
"tzdata": "2026f"
}
}
],
"engine": {
"version": "0.1.0",
"ruleset": "2026.3-draft",
"kernel": "de440-1900-2100",
"kernel_sha256": "7eef444f9e5bd8786b8b5b72e775ecc376991b953a6246ec7a49d2c37434ea74",
"tzdata": "2026f"
}
}