Ruling · Bahulā Caturthī · 1919

Friday 15 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 5 min 33 s.

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 14 August

Caturthī is absent from sāyāhna. Not taken.

17:30 sāyāhna beginssunset 20:16
17:0617:3017:5418:1818:4219:0619:3019:5420:1820:42

0 of 165 minutes covered

Late afternoon of Friday 15 August

Taken. The only late afternoon Caturthī reaches.

17:30 sāyāhna beginssunset 20:14
Caturthī ends 20:19:58
17:0617:3017:5418:1818:4219:0619:3019:5420:1820:42

165 of 165 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 22:18 on Thu 14 Aug to 20:20 on Fri 15 Aug.

    1919-08-14T13:18:15Z → 1919-08-15T11:19:58Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 17:30–20:16 on the 14th, 17:30–20:14 on the 15th.

    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 165 minutes on the 14th and 165 of 165 on the 15th.

    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 333 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 1919: Friday 15 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 1919 falls on Friday 15 August. Caturthī runs from 22:18 on Thu 14 Aug to 20:20 on Fri 15 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1919/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 15 Aug
Ahargaṇa, classicalDisc centre, no refractionFri 15 Aug
compat-drikpanchangComparison profileFri 15 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 14thCoveredSāyāhna 15thCoveredRuled
Los Angeles06:18 → 04:2017:00162 min16:590 min14 Aug
Chicago08:18 → 06:2017:06167 min17:050 min14 Aug
Jersey City09:18 → 07:2017:10166 min17:090 min14 Aug
Port of Spain09:18 → 07:2015:55150 min15:550 min14 Aug
London14:18 → 12:2017:30177 min17:290 min14 Aug
Durban15:18 → 13:2015:18132 min15:190 min14 Aug
Dubai16:59 → 15:0115:5997 min15:590 min14 Aug
Delhi18:48 → 16:5016:2414 min16:2327 min14 Aug
Kolkata18:48 → 16:5015:340 min15:3476 min15 Aug
Singapore20:18 → 18:2015:480 min15:48146 min15 Aug
Sydney23:18 → 21:2015:140 min15:14130 min15 Aug
Suva01:18 → 23:2015:370 min15:37138 min15 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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