Ruling · Dyūta Pratipad · 2090

Tuesday 24 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 32 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 Monday 23 October

Pratipadā is absent from pūrvāhṇa. Not taken.

06:09 sunrisepūrvāhṇa ends 09:39
05:4506:3307:2108:0908:5709:45

0 of 210 minutes covered

Forenoon of Tuesday 24 October

Taken. The only forenoon Pratipadā reaches.

06:11 sunrisepūrvāhṇa ends 09:40
Pratipadā ends 06:53:37
05:4706:3507:2308:1108:5909:47

43 of 209 minutes covered, the first 43

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

How it was decided

  1. 01

    Aṅga

    Pratipadā runs from 10:11 on Mon 23 Oct to 06:54 on Tue 24 Oct.

    2090-10-23T02:11:06Z → 2090-10-23T22:53:37Z

  2. 02

    Kāla

    Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:09–09:39 on the 23rd, 06:11–09:40 on the 24th.

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

  3. 03

    Rule

    Pratipadā must be present during pūrvāhṇa. It covers 0 of 210 minutes on the 23rd and 43 of 209 on the 24th.

    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 1908 s

  5. 05

    Ruling

    Dyūta Pratipad, Daqing, 2090: Tuesday 24 October.

    confidence: determinate

Say it like this

In Daqing, Dyūta Pratipad 2090 falls on Tuesday 24 October. Pratipadā runs from 10:11 on Mon 23 Oct to 06:54 on Tue 24 Oct and covers 43 of 209 minutes of pūrvāhṇa that forenoon.

ahargana.org/daqing/festivals/2090/dyuta-pratipad · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 24 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 24 Oct
compat-drikpanchangComparison profileTue 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 Angeles19:11 → 15:5407:06221 min07:070 min23 Oct
Chicago21:11 → 17:5407:13214 min07:150 min23 Oct
Jersey City22:11 → 18:5407:18215 min07:190 min23 Oct
Port of Spain22:11 → 18:5405:56236 min05:560 min23 Oct
London03:11 → 23:5407:40203 min07:410 min23 Oct
Durban04:11 → 00:5405:10261 min05:090 min23 Oct
Dubai06:11 → 02:5406:22228 min06:220 min23 Oct
Delhi07:41 → 04:2406:28152 min06:280 min23 Oct
Kolkata07:41 → 04:2405:37105 min05:380 min23 Oct
Singapore10:11 → 06:5406:4737 min06:477 min23 Oct
Sydney13:11 → 09:5406:050 min06:04230 min24 Oct
Suva14:11 → 10:5405:320 min05:32253 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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