Ruling · Dyūta Pratipad · 1919

Friday 24 October

Boundaryin Baoding, under the Rashtriya Panchang method. Both forenoons qualify and the rule does not say which to take. Say “contested”.

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 Friday 24 October

Taken. Both forenoons qualify; the rule is silent, and this one is covered longer.

06:36 sunrisepūrvāhṇa ends 10:13
06:1207:0007:4808:3609:2410:12

218 of 218 minutes covered

Forenoon of Saturday 25 October

Qualifies with 21 of 217 minutes. Not taken.

06:37 sunrisepūrvāhṇa ends 10:14
Pratipadā ends 06:57:06
06:1307:0107:4908:3709:2510:13

21 of 217 minutes covered, the first 21

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

How it was decided

  1. 01

    Aṅga

    Pratipadā runs from 04:39 on Fri 24 Oct to 06:57 on Sat 25 Oct.

    1919-10-23T20:39:02Z → 1919-10-24T22:57:06Z

  2. 02

    Kāla

    Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:36–10:13 on the 24th, 06:37–10:14 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 218 of 218 minutes on the 24th and 21 of 217 on the 25th.

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

  4. 04

    Tie-break

    Both forenoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

    priority: unstated → greater-coverage · margin 1232 s

  5. 05

    Ruling

    Dyūta Pratipad, Baoding, 1919: Friday 24 October.

    confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Dyūta Pratipad 1919 falls on Friday 24 October. Pratipadā runs from 04:39 on Fri 24 Oct to 06:57 on Sat 25 Oct and covers all of pūrvāhṇa that forenoon. It also reaches the next forenoon for 21 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

ahargana.org/baoding/festivals/1919/dyuta-pratipad · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 24 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 24 Oct
compat-drikpanchangComparison profileFri 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 Angeles13:39 → 15:5707:040 min07:05221 min24 Oct
Chicago15:39 → 17:5707:110 min07:13215 min24 Oct
Jersey City16:39 → 18:5707:160 min07:17216 min24 Oct
Port of Spain16:39 → 18:5705:560 min05:56236 min24 Oct
London20:39 → 22:5706:370 min06:38204 min24 Oct
Durban22:39 → 00:5705:110 min05:10260 min24 Oct
Dubai00:20 → 02:3806:020 min06:02228 min24 Oct
Delhi02:09 → 04:2706:260 min06:27226 min24 Oct
Kolkata02:09 → 04:2705:360 min05:37229 min24 Oct
Singapore03:39 → 05:5705:470 min05:47241 min24 Oct
Sydney06:39 → 08:5705:060 min05:05169 min25 Oct
Suva08:39 → 10:5705:330 min05:3366 min25 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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