Ruling · Dyūta Pratipad · 2008

Wednesday 29 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 Wednesday 29 October

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

06:42 sunrisepūrvāhṇa ends 10:15
Pratipadā begins 07:13:51
06:1807:0607:5408:4209:3010:18

181 of 213 minutes covered, the last 181

Forenoon of Thursday 30 October

Qualifies with 125 of 212 minutes. Not taken.

06:43 sunrisepūrvāhṇa ends 10:15
Pratipadā ends 08:48:41
06:1907:0707:5508:4309:3110:19

125 of 212 minutes covered, the first 125

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

How it was decided

  1. 01

    Aṅga

    Pratipadā runs from 07:14 on Wed 29 Oct to 08:49 on Thu 30 Oct.

    2008-10-28T23:13:51Z → 2008-10-30T00:48:42Z

  2. 02

    Kāla

    Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:42–10:15 on the 29th, 06:43–10:15 on the 30th.

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

  3. 03

    Rule

    Pratipadā must be present during pūrvāhṇa. It covers 181 of 213 minutes on the 29th and 125 of 212 on the 30th.

    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 1896 s

  5. 05

    Ruling

    Dyūta Pratipad, Baoding, 2008: Wednesday 29 October.

    confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Dyūta Pratipad 2008 falls on Wednesday 29 October. Pratipadā runs from 07:14 on Wed 29 Oct to 08:49 on Thu 30 Oct and covers 181 of 213 minutes of pūrvāhṇa that forenoon. It also reaches the next forenoon for 125 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/2008/dyuta-pratipad · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 29 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 29 Oct
compat-drikpanchangComparison profileWed 29 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 28thCoveredSunrise 30thCoveredRuled
Los Angeles16:14 → 17:4907:100 min07:120 min29 Oct
Chicago18:14 → 19:4907:190 min07:210 min29 Oct
Jersey City19:14 → 20:4907:230 min07:250 min29 Oct
Port of Spain19:14 → 20:4905:570 min05:570 min29 Oct
London23:14 → 00:4906:480 min06:510 min29 Oct
Durban01:14 → 02:4905:050 min05:030 min29 Oct
Dubai03:14 → 04:4906:240 min06:250 min29 Oct
Delhi04:44 → 06:1906:310 min06:320 min29 Oct
Kolkata04:44 → 06:1905:390 min05:4038 min29 Oct
Singapore07:14 → 08:4906:460 min06:46122 min29 Oct
Sydney10:14 → 11:4905:590 min05:57268 min30 Oct
Suva11:14 → 12:4905:290 min05:28255 min30 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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