Ruling · Dyūta Pratipad · 1918

Monday 4 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

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

06:48 sunrisepūrvāhṇa ends 10:17
06:2407:1208:0008:4809:3610:24

209 of 209 minutes covered

Forenoon of Tuesday 5 November

Qualifies with 32 of 209 minutes. Not taken.

06:49 sunrisepūrvāhṇa ends 10:17
Pratipadā ends 07:21:01
06:2507:1308:0108:4909:3710:25

32 of 209 minutes covered, the first 32

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

How it was decided

  1. 01

    Aṅga

    Pratipadā runs from 05:01 on Mon 4 Nov to 07:21 on Tue 5 Nov.

    1918-11-03T21:01:09Z → 1918-11-04T23:21:02Z

  2. 02

    Kāla

    Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:48–10:17 on the 4th, 06:49–10:17 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 209 of 209 minutes on the 4th and 32 of 209 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 1939 s

  5. 05

    Ruling

    Dyūta Pratipad, Baoding, 1918: Monday 4 November.

    confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Dyūta Pratipad 1918 falls on Monday 4 November. Pratipadā runs from 05:01 on Mon 4 Nov to 07:21 on Tue 5 Nov and covers all of pūrvāhṇa that forenoon. It also reaches the next forenoon for 32 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/1918/dyuta-pratipad · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 4 Nov
Ahargaṇa, classicalDisc centre, no refractionMon 4 Nov
compat-drikpanchangComparison profileMon 4 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 3rdCoveredSunrise 4thCoveredRuled
Los Angeles13:01 → 15:2106:140 min06:15214 min4 Nov
Chicago15:01 → 17:2106:250 min06:26205 min4 Nov
Jersey City16:01 → 18:2106:290 min06:30207 min4 Nov
Port of Spain17:01 → 19:2105:580 min05:58234 min4 Nov
London21:01 → 23:2106:570 min06:58190 min4 Nov
Durban23:01 → 01:2105:010 min05:00266 min4 Nov
Dubai00:42 → 03:0206:080 min06:09223 min4 Nov
Delhi02:31 → 04:5106:340 min06:35220 min4 Nov
Kolkata02:31 → 04:5105:420 min05:42225 min4 Nov
Singapore04:01 → 06:2105:460 min05:46241 min4 Nov
Sydney07:01 → 09:2104:540 min04:53143 min5 Nov
Suva09:01 → 11:2105:270 min05:2641 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

About Ahargaṇa