Ruling · Dyūta Pratipad · 1900

Wednesday 24 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 389 minutes.

Decide it for

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two forenoons

One ghaṭī is 24 minutes. Pūrvāhṇa is first 5 of 15 day muhūrtas.

Forenoon of Wednesday 24 October

Taken. The only forenoon Pratipadā reaches.

06:14 sunrisepūrvāhṇa ends 09:44
05:5006:3807:2608:1409:0209:50

210 of 210 minutes covered

Forenoon of Thursday 25 October

Pratipadā is absent from pūrvāhṇa. Not taken.

06:16 sunrisepūrvāhṇa ends 09:44
05:5206:4007:2808:1609:0409:52

0 of 209 minutes covered

Pratipadā presentPūrvāhṇa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pratipadā runs from 21:32 on Tue 23 Oct to 23:47 on Wed 24 Oct.

    1900-10-23T13:27:12Z → 1900-10-24T15:41:47Z

  2. 02

    Kāla

    Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:14–09:44 on the 24th, 06:16–09:44 on the 25th.

    purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be present during pūrvāhṇa. It covers 210 of 210 minutes on the 24th and 0 of 209 on the 25th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one forenoon qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 23337 s

  5. 05

    Ruling

    Dyūta Pratipad, Daqing, 1900: Wednesday 24 October.

    confidence: determinate

Say it like this

In Daqing, Dyūta Pratipad 1900 falls on Wednesday 24 October. Pratipadā runs from 21:32 on Tue 23 Oct to 23:47 on Wed 24 Oct and covers all of pūrvāhṇa that forenoon.

ahargana.org/daqing/festivals/1900/dyuta-pratipad · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 24 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 24 Oct
compat-drikpanchangComparison profileWed 24 Oct
No institution has a recorded ruling for Daqing.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/dyuta-pratipad · ruleset 2026.3-draft

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Pratipadā
Kāla
Pūrvāhṇa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 104

“S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePratipadāSunrise 23rdCoveredSunrise 24thCoveredRuled
Los Angeles05:27 → 07:4206:05222 min06:0696 min23 Oct
Chicago07:27 → 09:4206:12140 min06:13208 min24 Oct
Jersey City08:27 → 10:4206:1685 min06:17215 min24 Oct
Port of Spain09:27 → 11:4205:5625 min05:56236 min24 Oct
London13:27 → 15:4206:380 min06:39203 min24 Oct
Durban14:57 → 17:1204:410 min04:40261 min24 Oct
Dubai17:08 → 19:2306:020 min06:03228 min24 Oct
Delhi18:48 → 21:0306:180 min06:18225 min24 Oct
Kolkata18:48 → 21:0305:270 min05:28229 min24 Oct
Singapore20:22 → 22:3705:420 min05:42241 min24 Oct
Sydney23:27 → 01:4205:060 min05:04264 min24 Oct
Suva01:22 → 03:3705:280 min05:27252 min24 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
dyuta-pratipad@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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