Ruling · Bahulā Caturthī · 1991

Wednesday 28 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 10 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 Wednesday 28 August

Taken. Both late afternoons qualify; the rule takes the first.

17:17 sāyāhna beginssunset 19:56
Caturthī begins 19:45:17
16:5317:1717:4118:0518:2918:5319:1719:4120:0520:29

10 of 159 minutes covered, the last 10

Late afternoon of Thursday 29 August

Qualifies with 129 of 158 minutes. Not taken.

17:16 sāyāhna beginssunset 19:54
Caturthī ends 19:25:34
16:5217:1617:4018:0418:2818:5219:1619:4020:0420:28

129 of 158 minutes covered, the first 129

Caturthī presentSāyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 19:45 on Wed 28 Aug to 19:26 on Thu 29 Aug.

    1991-08-28T10:45:18Z → 1991-08-29T10:25:34Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 17:17–19:56 on the 28th, 17:16–19:54 on the 29th.

    sayahna: day-muhurta-13-15 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturthī must be present during sāyāhna. It covers 10 of 159 minutes on the 28th and 129 of 158 on the 29th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Both late afternoons qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 622 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 1991: Wednesday 28 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 1991 falls on Wednesday 28 August. Caturthī runs from 19:45 on Wed 28 Aug to 19:26 on Thu 29 Aug and covers 10 of 159 minutes of sāyāhna that late afternoon. It also reaches the next late afternoon for 129 minutes; by the rule the first late afternoon is taken.

ahargana.org/baoding/festivals/1991/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 28 Aug
Ahargaṇa, classicalDisc centre, no refractionWed 28 Aug
compat-drikpanchangComparison profileWed 28 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 28thCoveredSāyāhna 29thCoveredRuled
Los Angeles03:45 → 03:2616:48156 min16:470 min28 Aug
Chicago05:45 → 05:2616:51160 min16:500 min28 Aug
Jersey City06:45 → 06:2616:56159 min16:550 min28 Aug
Port of Spain06:45 → 06:2615:50148 min15:490 min28 Aug
London11:45 → 11:2617:10166 min17:090 min28 Aug
Durban12:45 → 12:2615:22136 min15:220 min28 Aug
Dubai14:45 → 14:2616:09153 min16:080 min28 Aug
Delhi16:15 → 15:5616:13152 min16:130 min28 Aug
Kolkata16:15 → 15:5615:26102 min15:2530 min28 Aug
Singapore18:45 → 18:2616:4425 min16:44101 min28 Aug
Sydney20:45 → 20:2615:190 min15:19135 min29 Aug
Suva22:45 → 22:2615:380 min15:38140 min29 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