Ruling · Dyūta Pratipad · 2097

Tuesday 5 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 Monday 4 November

Qualifies with 7 of 208 minutes. Not taken.

06:50 sunrisepūrvāhṇa ends 10:18
Pratipadā begins 10:10:27
06:2607:1408:0208:5009:3810:26

7 of 208 minutes covered, the last 7

Forenoon of Tuesday 5 November

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

06:51 sunrisepūrvāhṇa ends 10:18
06:2707:1508:0308:5109:3910:27

207 of 207 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 10:10 on Mon 4 Nov to 11:13 on Tue 5 Nov.

    2097-11-04T02:10:27Z → 2097-11-05T03:13:11Z

  2. 02

    Kāla

    Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:50–10:18 on the 4th, 06:51–10:18 on the 5th.

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

  3. 03

    Rule

    Pratipadā must be present during pūrvāhṇa. It covers 7 of 208 minutes on the 4th and 207 of 207 on the 5th.

    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 435 s

  5. 05

    Ruling

    Dyūta Pratipad, Baoding, 2097: Tuesday 5 November.

    confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Dyūta Pratipad 2097 falls on Tuesday 5 November. Pratipadā runs from 10:10 on Mon 4 Nov to 11:13 on Tue 5 Nov and covers all of pūrvāhṇa that forenoon. It also reaches the previous forenoon for 7 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/2097/dyuta-pratipad · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 5 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 5 Nov
compat-drikpanchangComparison profileTue 5 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 4thCoveredSunrise 5thCoveredRuled
Los Angeles18:10 → 19:1306:17213 min06:180 min4 Nov
Chicago20:10 → 21:1306:28204 min06:300 min4 Nov
Jersey City21:10 → 22:1306:32205 min06:330 min4 Nov
Port of Spain22:10 → 23:1305:59234 min05:590 min4 Nov
London02:10 → 03:1307:01189 min07:030 min4 Nov
Durban04:10 → 05:1304:59267 min04:5815 min4 Nov
Dubai06:10 → 07:1306:29222 min06:3044 min4 Nov
Delhi07:40 → 08:4306:36155 min06:37126 min4 Nov
Kolkata07:40 → 08:4305:43108 min05:44179 min5 Nov
Singapore10:10 → 11:1306:4737 min06:47241 min5 Nov
Sydney13:10 → 14:1305:520 min05:51272 min5 Nov
Suva14:10 → 15:1305:260 min05:26257 min5 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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