Ruling · Dyūta Pratipad · 1946

Friday 25 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 25 October

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

06:37 sunrisepūrvāhṇa ends 10:14
Pratipadā begins 07:31:48
06:1307:0107:4908:3709:2510:13

162 of 217 minutes covered, the last 162

Forenoon of Saturday 26 October

Qualifies with 151 of 216 minutes. Not taken.

06:38 sunrisepūrvāhṇa ends 10:14
Pratipadā ends 09:09:23
06:1407:0207:5008:3809:2610:14

151 of 216 minutes covered, the first 151

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

How it was decided

  1. 01

    Aṅga

    Pratipadā runs from 07:32 on Fri 25 Oct to 09:09 on Sat 26 Oct.

    1946-10-24T23:31:48Z → 1946-10-26T01:09:24Z

  2. 02

    Kāla

    Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:37–10:14 on the 25th, 06:38–10:14 on the 26th.

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

  3. 03

    Rule

    Pratipadā must be present during pūrvāhṇa. It covers 162 of 217 minutes on the 25th and 151 of 216 on the 26th.

    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 3287 s

  5. 05

    Ruling

    Dyūta Pratipad, Baoding, 1946: Friday 25 October.

    confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Dyūta Pratipad 1946 falls on Friday 25 October. Pratipadā runs from 07:32 on Fri 25 Oct to 09:09 on Sat 26 Oct and covers 162 of 217 minutes of pūrvāhṇa that forenoon. It also reaches the next forenoon for 151 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/1946/dyuta-pratipad · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 25 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 25 Oct
compat-drikpanchangComparison profileFri 25 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 24thCoveredSunrise 26thCoveredRuled
Los Angeles15:32 → 17:0906:050 min06:070 min25 Oct
Chicago17:32 → 19:0906:130 min06:150 min25 Oct
Jersey City18:32 → 20:0906:170 min06:190 min25 Oct
Port of Spain19:32 → 21:0905:560 min05:560 min25 Oct
London23:32 → 01:0906:390 min06:430 min25 Oct
Durban01:32 → 03:0905:100 min05:080 min25 Oct
Dubai03:32 → 05:0906:210 min06:230 min25 Oct
Delhi05:02 → 06:3906:270 min06:2911 min25 Oct
Kolkata05:02 → 06:3905:370 min05:3862 min25 Oct
Singapore07:02 → 08:3906:170 min06:17143 min25 Oct
Sydney09:32 → 11:0905:050 min05:02265 min26 Oct
Suva11:32 → 13:0905:320 min05:31253 min26 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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