Ruling · Bahulā Caturthī · 2051

Friday 25 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 162 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 Thursday 24 August

Caturthī is absent from sāyāhna. Not taken.

16:21 sāyāhna beginssunset 19:01
15:5716:2116:4517:0917:3317:5718:2118:4519:0919:33

0 of 160 minutes covered

Late afternoon of Friday 25 August

Taken. The only late afternoon Caturthī reaches.

16:20 sāyāhna beginssunset 18:59
15:5616:2016:4417:0817:3217:5618:2018:4419:0819:32

160 of 160 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 00:39 on Fri 25 Aug to 21:42 on Fri 25 Aug.

    2051-08-24T16:38:41Z → 2051-08-25T13:41:39Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:21–19:01 on the 24th, 16:20–18:59 on the 25th.

    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 160 minutes on the 24th and 160 of 160 on the 25th.

    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 9731 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 2051: Friday 25 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 2051 falls on Friday 25 August. Caturthī runs from 00:39 on Fri 25 Aug to 21:42 on Fri 25 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2051/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 25 Aug
Ahargaṇa, classicalDisc centre, no refractionFri 25 Aug
compat-drikpanchangComparison profileFri 25 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 24thCoveredSāyāhna 25thCoveredRuled
Los Angeles09:39 → 06:4216:51157 min16:500 min24 Aug
Chicago11:39 → 08:4216:55162 min16:540 min24 Aug
Jersey City12:39 → 09:4217:00161 min16:590 min24 Aug
Port of Spain12:39 → 09:4215:51149 min15:510 min24 Aug
London17:39 → 14:4217:16146 min17:140 min24 Aug
Durban18:39 → 15:4215:210 min15:2220 min25 Aug
Dubai20:39 → 17:4216:120 min16:1191 min25 Aug
Delhi22:09 → 19:1216:160 min16:16155 min25 Aug
Kolkata22:09 → 19:1215:280 min15:28153 min25 Aug
Singapore00:39 → 21:4216:460 min16:45146 min25 Aug
Sydney02:39 → 23:4215:180 min15:18134 min25 Aug
Suva04:39 → 01:4215:380 min15:38140 min25 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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