Ruling · Dyūta Pratipad · 2018

Thursday 8 November

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 390 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 Thursday 8 November

Taken. The only forenoon Pratipadā reaches.

06:32 sunrisepūrvāhṇa ends 09:46
06:0806:5607:4408:3209:2010:08

195 of 195 minutes covered

Forenoon of Friday 9 November

Pratipadā is absent from pūrvāhṇa. Not taken.

06:33 sunrisepūrvāhṇa ends 09:47
06:0906:5707:4508:3309:2110:09

0 of 194 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 00:02 on Thu 8 Nov to 23:38 on Thu 8 Nov.

    2018-11-07T16:02:02Z → 2018-11-08T15:37:53Z

  2. 02

    Kāla

    Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:32–09:46 on the 8th, 06:33–09:47 on the 9th.

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

  3. 03

    Rule

    Pratipadā must be present during pūrvāhṇa. It covers 195 of 195 minutes on the 8th and 0 of 194 on the 9th.

    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 23370 s

  5. 05

    Ruling

    Dyūta Pratipad, Daqing, 2018: Thursday 8 November.

    confidence: determinate

Say it like this

In Daqing, Dyūta Pratipad 2018 falls on Thursday 8 November. Pratipadā runs from 00:02 on Thu 8 Nov to 23:38 on Thu 8 Nov and covers all of pūrvāhṇa that forenoon.

ahargana.org/daqing/festivals/2018/dyuta-pratipad · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 8 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 8 Nov
compat-drikpanchangComparison profileThu 8 Nov
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 7thCoveredSunrise 8thCoveredRuled
Los Angeles08:02 → 07:3806:18108 min06:1979 min7 Nov
Chicago10:02 → 09:3806:310 min06:32186 min8 Nov
Jersey City11:02 → 10:3806:340 min06:35203 min8 Nov
Port of Spain12:02 → 11:3805:590 min05:59234 min8 Nov
London16:02 → 15:3807:050 min07:07185 min8 Nov
Durban18:02 → 17:3804:570 min04:57269 min8 Nov
Dubai20:02 → 19:3806:300 min06:31221 min8 Nov
Delhi21:32 → 21:0806:380 min06:38218 min8 Nov
Kolkata21:32 → 21:0805:440 min05:45223 min8 Nov
Singapore00:02 → 23:3806:460 min06:47241 min8 Nov
Sydney03:02 → 02:3805:500 min05:49273 min8 Nov
Suva05:02 → 04:3806:250 min06:24257 min8 Nov
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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