Ruling · Bahulā Caturthī · 1947

Thursday 4 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 493 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 Wednesday 3 September

Caturthī is absent from sāyāhna. Not taken.

17:11 sāyāhna beginssunset 19:47
16:4717:1117:3517:5918:2318:4719:1119:3519:59

0 of 156 minutes covered

Late afternoon of Thursday 4 September

Taken. The only late afternoon Caturthī reaches.

17:10 sāyāhna beginssunset 19:46
16:4617:1017:3417:5818:2218:4619:1019:3419:58

155 of 155 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 04:00 on Thu 4 Sep to 04:03 on Fri 5 Sep.

    1947-09-03T18:59:42Z → 1947-09-04T19:02:55Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 17:11–19:47 on the 3rd, 17:10–19:46 on the 4th.

    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 3rd and 155 of 155 on the 4th.

    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 29556 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 1947: Thursday 4 September.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 1947 falls on Thursday 4 September. Caturthī runs from 04:00 on Thu 4 Sep to 04:03 on Fri 5 Sep and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1947/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 4 Sep
Ahargaṇa, classicalDisc centre, no refractionThu 4 Sep
compat-drikpanchangComparison profileThu 4 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 3rdCoveredSāyāhna 4thCoveredRuled
Los Angeles11:00 → 11:0315:43154 min15:420 min3 Sep
Chicago14:00 → 14:0316:45157 min16:440 min3 Sep
Jersey City15:00 → 15:0316:50156 min16:490 min3 Sep
Port of Spain15:00 → 15:0315:47148 min15:460 min3 Sep
London20:00 → 20:0317:020 min17:01161 min4 Sep
Durban21:00 → 21:0315:230 min15:23139 min4 Sep
Dubai23:00 → 23:0316:050 min16:04151 min4 Sep
Delhi00:30 → 00:3316:090 min16:08152 min4 Sep
Kolkata00:30 → 00:3315:220 min15:21150 min4 Sep
Singapore02:30 → 02:3316:120 min16:12145 min4 Sep
Sydney05:00 → 05:0315:200 min15:21137 min4 Sep
Suva07:00 → 07:0315:380 min15:38141 min4 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