Ruling · Bahulā Caturthī · 2025

Tuesday 12 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 320 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

Taken. The only late afternoon Caturthī reaches.

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

165 of 165 minutes covered

Late afternoon of Wednesday 13 August

Caturthī is absent from sāyāhna. Not taken.

16:30 sāyāhna beginssunset 19:15
16:0616:3016:5417:1817:4218:0618:3018:5419:1819:42

0 of 165 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 11:11 on Tue 12 Aug to 09:07 on Wed 13 Aug.

    2025-08-12T03:11:22Z → 2025-08-13T01:06:36Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:31–19:17 on the 12th, 16:30–19:15 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 165 of 165 minutes on the 12th and 0 of 165 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 19188 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 2025: Tuesday 12 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 2025 falls on Tuesday 12 August. Caturthī runs from 11:11 on Tue 12 Aug to 09:07 on Wed 13 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2025/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 12 Aug
Ahargaṇa, classicalDisc centre, no refractionTue 12 Aug
compat-drikpanchangComparison profileTue 12 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 Angeles20:11 → 18:0717:0166 min17:000 min12 Aug
Chicago22:11 → 20:0717:07168 min17:060 min12 Aug
Jersey City23:11 → 21:0717:11167 min17:100 min12 Aug
Port of Spain23:11 → 21:0715:56150 min15:550 min12 Aug
London04:11 → 02:0717:31177 min17:300 min12 Aug
Durban05:11 → 03:0715:18132 min15:190 min12 Aug
Dubai07:11 → 05:0716:19157 min16:180 min12 Aug
Delhi08:41 → 06:3716:24159 min16:240 min12 Aug
Kolkata08:41 → 06:3715:35156 min15:340 min12 Aug
Singapore11:11 → 09:0716:48146 min16:480 min12 Aug
Sydney13:11 → 11:0715:14129 min15:140 min12 Aug
Suva15:11 → 13:0715:37137 min15:380 min12 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

About Ahargaṇa