Ruling · Bahulā Caturthī · 1909

Friday 3 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 246 minutes.

Decide it for

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 2 September

Caturthī is absent from sāyāhna. Not taken.

16:12 sāyāhna beginssunset 18:48
15:4816:1216:3617:0017:2417:4818:1218:3619:00

0 of 156 minutes covered

Late afternoon of Friday 3 September

Taken. The only late afternoon Caturthī reaches.

16:11 sāyāhna beginssunset 18:47
15:4716:1116:3516:5917:2317:4718:1118:3518:59

156 of 156 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 02:08 on Fri 3 Sep to 22:53 on Fri 3 Sep.

    1909-09-02T18:08:08Z → 1909-09-03T14:53:12Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:12–18:48 on the 2nd, 16:11–18:47 on the 3rd.

    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 156 minutes on the 2nd and 156 of 156 on the 3rd.

    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 14786 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 1909: Friday 3 September.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 1909 falls on Friday 3 September. Caturthī runs from 02:08 on Fri 3 Sep to 22:53 on Fri 3 Sep and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1909/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 3 Sep
Ahargaṇa, classicalDisc centre, no refractionFri 3 Sep
compat-drikpanchangComparison profileFri 3 Sep
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 2ndCoveredSāyāhna 3rdCoveredRuled
Los Angeles10:08 → 06:5315:44154 min15:430 min2 Sep
Chicago12:08 → 08:5315:46157 min15:450 min2 Sep
Jersey City13:08 → 09:5315:51157 min15:500 min2 Sep
Port of Spain14:08 → 10:5315:47148 min15:470 min2 Sep
London18:08 → 14:5316:0338 min16:020 min2 Sep
Durban20:08 → 16:5315:230 min15:2390 min3 Sep
Dubai21:49 → 18:3415:470 min15:46151 min3 Sep
Delhi23:38 → 20:2316:100 min16:09152 min3 Sep
Kolkata23:38 → 20:2315:220 min15:22151 min3 Sep
Singapore01:08 → 21:5315:430 min15:42146 min3 Sep
Sydney04:08 → 00:5315:200 min15:20137 min3 Sep
Suva06:03 → 02:4815:330 min15:33141 min3 Sep
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