Ruling · Bahulā Caturthī · 2013

Saturday 24 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 437 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 Friday 23 August

Caturthī is absent from sāyāhna. Not taken.

16:21 sāyāhna beginssunset 19:02
15:5716:2116:4517:0917:3317:5718:2118:4519:0919:33

0 of 161 minutes covered

Late afternoon of Saturday 24 August

Taken. The only late afternoon Caturthī reaches.

16:20 sāyāhna beginssunset 19:01
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 03:07 on Sat 24 Aug to 02:17 on Sun 25 Aug.

    2013-08-23T19:07:04Z → 2013-08-24T18:17:13Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:21–19:02 on the 23rd, 16:20–19:01 on the 24th.

    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 161 minutes on the 23rd and 160 of 160 on the 24th.

    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 26202 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 2013: Saturday 24 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 2013 falls on Saturday 24 August. Caturthī runs from 03:07 on Sat 24 Aug to 02:17 on Sun 25 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2013/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 24 Aug
Ahargaṇa, classicalDisc centre, no refractionSat 24 Aug
compat-drikpanchangComparison profileSat 24 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 23rdCoveredSāyāhna 24thCoveredRuled
Los Angeles12:07 → 11:1716:52158 min16:510 min23 Aug
Chicago14:07 → 13:1716:56162 min16:550 min23 Aug
Jersey City15:07 → 14:1717:01161 min17:000 min23 Aug
Port of Spain15:07 → 14:1715:52149 min15:510 min23 Aug
London20:07 → 19:1717:170 min17:15122 min24 Aug
Durban21:07 → 20:1715:210 min15:21135 min24 Aug
Dubai23:07 → 22:1716:120 min16:12154 min24 Aug
Delhi00:37 → 23:4716:170 min16:16155 min24 Aug
Kolkata00:37 → 23:4715:290 min15:28153 min24 Aug
Singapore03:07 → 02:1716:460 min16:45146 min24 Aug
Sydney05:07 → 04:1715:180 min15:18133 min24 Aug
Suva07:07 → 06:1715:380 min15:38139 min24 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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