Ruling · Bahulā Caturthī · 1930

Wednesday 13 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 407 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two late afternoons

One ghaṭī is 24 minutes. Sāyāhna is last 3 of 15 day muhūrtas.

Late afternoon of Tuesday 12 August

Caturthī is absent from sāyāhna. Not taken.

16:32 sāyāhna beginssunset 19:18
16:0816:3216:5617:2017:4418:0818:3218:5619:2019:44

0 of 166 minutes covered

Late afternoon of Wednesday 13 August

Taken. The only late afternoon Caturthī reaches.

16:31 sāyāhna beginssunset 19:17
16:0716:3116:5517:1917:4318:0718:3118:5519:1919:43

166 of 166 minutes covered

Caturthī presentSāyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 02:04 on Wed 13 Aug to 04:08 on Thu 14 Aug.

    1930-08-12T18:04:20Z → 1930-08-13T20:08:21Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:32–19:18 on the 12th, 16:31–19:17 on the 13th.

    sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturthī must be present during sāyāhna. It covers 0 of 166 minutes on the 12th and 166 of 166 on the 13th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Only one late afternoon qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 24392 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 1930: Wednesday 13 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 1930 falls on Wednesday 13 August. Caturthī runs from 02:04 on Wed 13 Aug to 04:08 on Thu 14 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1930/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 13 Aug
Ahargaṇa, classicalDisc centre, no refractionWed 13 Aug
compat-drikpanchangComparison profileWed 13 Aug
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/bahula-chaturthi · ruleset 2026.3-draft

Month
Śrāvaṇa, amānta
Pakṣa · aṅga
Kṛṣṇa · Caturthī
Kāla
Sāyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 103

“K 4 Bahula caturthi (Madhyadesa) (Sayahnavyapini: if occurs on two successive days, it is to be observed on the 1st day).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturthīSāyāhna 12thCoveredSāyāhna 13thCoveredRuled
Los Angeles10:04 → 12:0816:01162 min16:000 min12 Aug
Chicago13:04 → 15:0817:07168 min17:060 min12 Aug
Jersey City14:04 → 16:0817:12167 min17:110 min12 Aug
Port of Spain14:04 → 16:0815:56150 min15:5613 min12 Aug
London19:04 → 21:0817:3286 min17:31177 min12 Aug
Durban20:04 → 22:0815:180 min15:18131 min13 Aug
Dubai22:04 → 00:0816:190 min16:19157 min13 Aug
Delhi23:34 → 01:3816:250 min16:24159 min13 Aug
Kolkata23:34 → 01:3815:350 min15:35156 min13 Aug
Singapore01:04 → 03:0815:480 min15:48146 min13 Aug
Sydney04:04 → 06:0815:130 min15:14129 min13 Aug
Suva06:04 → 08:0815:370 min15:37137 min13 Aug
Profile · tradition
pac-rp@2026.1 · smarta
Rule
bahula-chaturthi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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