Ruling · Dyūta Pratipad · 1957

Thursday 24 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 20 minutes.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two forenoons

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

Forenoon of Wednesday 23 October

Pratipadā is absent from pūrvāhṇa. Not taken.

06:35 sunrisepūrvāhṇa ends 10:13
06:1106:5907:4708:3509:2310:11

0 of 218 minutes covered

Forenoon of Thursday 24 October

Taken. The only forenoon Pratipadā reaches.

06:36 sunrisepūrvāhṇa ends 10:14
Pratipadā ends 09:53:49
06:1207:0007:4808:3609:2410:12

198 of 217 minutes covered, the first 198

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

How it was decided

  1. 01

    Aṅga

    Pratipadā runs from 12:43 on Wed 23 Oct to 09:54 on Thu 24 Oct.

    1957-10-23T04:43:20Z → 1957-10-24T01:53:49Z

  2. 02

    Kāla

    Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:35–10:13 on the 23rd, 06:36–10:14 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 218 minutes on the 23rd and 198 of 217 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 1185 s

  5. 05

    Ruling

    Dyūta Pratipad, Baoding, 1957: Thursday 24 October.

    confidence: determinate

Say it like this

In Baoding, Dyūta Pratipad 1957 falls on Thursday 24 October. Pratipadā runs from 12:43 on Wed 23 Oct to 09:54 on Thu 24 Oct and covers 198 of 217 minutes of pūrvāhṇa that forenoon.

ahargana.org/baoding/festivals/1957/dyuta-pratipad · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 24 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 24 Oct
compat-drikpanchangComparison profileThu 24 Oct
No institution has a recorded ruling for Baoding.

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 Angeles20:43 → 17:5406:05221 min06:060 min23 Oct
Chicago23:43 → 20:5407:12215 min07:140 min23 Oct
Jersey City00:43 → 21:5407:16216 min07:180 min23 Oct
Port of Spain00:43 → 21:5405:56236 min05:560 min23 Oct
London04:43 → 01:5406:38204 min06:400 min23 Oct
Durban06:43 → 03:5405:10167 min05:090 min23 Oct
Dubai08:43 → 05:5406:2186 min06:220 min23 Oct
Delhi10:13 → 07:2406:270 min06:2756 min24 Oct
Kolkata10:13 → 07:2405:360 min05:37107 min24 Oct
Singapore12:13 → 09:2406:170 min06:17187 min24 Oct
Sydney14:43 → 11:5405:050 min05:04264 min24 Oct
Suva16:43 → 13:5405:330 min05:32252 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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