Ruling · Bahulā Caturthī · 1928

Monday 3 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 457 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 Sunday 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 Monday 3 September

Taken. The only late afternoon Caturthī reaches.

16:11 sāyāhna beginssunset 18:46
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 04:42 on Mon 3 Sep to 02:23 on Tue 4 Sep.

    1928-09-02T20:41:50Z → 1928-09-03T18:23:03Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:12–18:48 on the 2nd, 16:11–18:46 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 27413 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 1928: Monday 3 September.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 1928 falls on Monday 3 September. Caturthī runs from 04:42 on Mon 3 Sep to 02:23 on Tue 4 Sep and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1928/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 3 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 3 Sep
compat-drikpanchangComparison profileMon 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 Angeles12:42 → 10:2315:43154 min15:420 min2 Sep
Chicago15:42 → 13:2316:45157 min16:440 min2 Sep
Jersey City16:42 → 14:2316:50157 min16:490 min2 Sep
Port of Spain16:42 → 14:2315:4793 min15:470 min2 Sep
London21:42 → 19:2317:030 min17:01142 min3 Sep
Durban22:42 → 20:2315:230 min15:23138 min3 Sep
Dubai00:42 → 22:2316:050 min16:05151 min3 Sep
Delhi02:12 → 23:5316:090 min16:08152 min3 Sep
Kolkata02:12 → 23:5315:220 min15:21150 min3 Sep
Singapore03:42 → 01:2315:430 min15:42146 min3 Sep
Sydney06:42 → 04:2315:200 min15:21137 min3 Sep
Suva08:42 → 06:2315:380 min15:38141 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

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