Ruling · Dyūta Pratipad · 1910

Thursday 3 November

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 Wednesday 2 November

Qualifies with 20 of 211 minutes. Not taken.

06:45 sunrisepūrvāhṇa ends 10:16
Pratipadā begins 09:55:50
06:2107:0907:5708:4509:3310:21

20 of 211 minutes covered, the last 20

Forenoon of Thursday 3 November

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

06:46 sunrisepūrvāhṇa ends 10:17
06:2207:1007:5808:4609:3410:22

210 of 210 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 09:56 on Wed 2 Nov to 12:34 on Thu 3 Nov.

    1910-11-02T01:55:51Z → 1910-11-03T04:34:18Z

  2. 02

    Kāla

    Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:45–10:16 on the 2nd, 06:46–10:17 on the 3rd.

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

  3. 03

    Rule

    Pratipadā must be present during pūrvāhṇa. It covers 20 of 211 minutes on the 2nd and 210 of 210 on the 3rd.

    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 1220 s

  5. 05

    Ruling

    Dyūta Pratipad, Baoding, 1910: Thursday 3 November.

    confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Dyūta Pratipad 1910 falls on Thursday 3 November. Pratipadā runs from 09:56 on Wed 2 Nov to 12:34 on Thu 3 Nov and covers all of pūrvāhṇa that forenoon. It also reaches the previous forenoon for 20 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/1910/dyuta-pratipad · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 3 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 3 Nov
compat-drikpanchangComparison profileThu 3 Nov
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 2ndCoveredSunrise 3rdCoveredRuled
Los Angeles17:56 → 20:3406:13215 min06:140 min2 Nov
Chicago19:56 → 22:3406:24207 min06:250 min2 Nov
Jersey City20:56 → 23:3406:27208 min06:280 min2 Nov
Port of Spain21:56 → 00:3405:58235 min05:580 min2 Nov
London01:56 → 04:3406:55193 min06:560 min2 Nov
Durban03:56 → 06:3405:02265 min05:0193 min2 Nov
Dubai05:37 → 08:1506:08224 min06:08127 min2 Nov
Delhi07:26 → 10:0406:33168 min06:34210 min3 Nov
Kolkata07:26 → 10:0405:41121 min05:42226 min3 Nov
Singapore08:56 → 11:3405:4652 min05:46241 min3 Nov
Sydney11:56 → 14:3404:550 min04:54270 min3 Nov
Suva13:51 → 16:2905:220 min05:22255 min3 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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