Ruling · Bahulā Caturthī · 1992

Monday 17 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 368 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 Sunday 16 August

Caturthī is absent from sāyāhna. Not taken.

16:28 sāyāhna beginssunset 19:11
16:0416:2816:5217:1617:4018:0418:2818:5219:1619:40

0 of 164 minutes covered

Late afternoon of Monday 17 August

Taken. The only late afternoon Caturthī reaches.

16:27 sāyāhna beginssunset 19:10
16:0316:2716:5117:1517:3918:0318:2718:5119:1519:39

163 of 163 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 01:20 on Mon 17 Aug to 03:11 on Tue 18 Aug.

    1992-08-16T17:19:49Z → 1992-08-17T19:11:11Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:28–19:11 on the 16th, 16:27–19:10 on the 17th.

    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 164 minutes on the 16th and 163 of 163 on the 17th.

    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 22101 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 1992: Monday 17 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 1992 falls on Monday 17 August. Caturthī runs from 01:20 on Mon 17 Aug to 03:11 on Tue 18 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1992/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 17 Aug
Ahargaṇa, classicalDisc centre, no refractionMon 17 Aug
compat-drikpanchangComparison profileMon 17 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 16thCoveredSāyāhna 17thCoveredRuled
Los Angeles10:20 → 12:1116:57160 min16:570 min16 Aug
Chicago12:20 → 14:1117:03166 min17:020 min16 Aug
Jersey City13:20 → 15:1117:07165 min17:060 min16 Aug
Port of Spain13:20 → 15:1115:54149 min15:540 min16 Aug
London18:20 → 20:1117:26120 min17:24167 min16 Aug
Durban19:20 → 21:1115:190 min15:20133 min17 Aug
Dubai21:20 → 23:1116:170 min16:16156 min17 Aug
Delhi22:50 → 00:4116:220 min16:21157 min17 Aug
Kolkata22:50 → 00:4115:330 min15:32154 min17 Aug
Singapore01:20 → 03:1116:470 min16:47146 min17 Aug
Sydney03:20 → 05:1115:150 min15:16131 min17 Aug
Suva05:20 → 07:1115:380 min15:38138 min17 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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