Ruling · Bahulā Caturthī · 1903

Wednesday 12 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 227 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 Tuesday 11 August

Caturthī is absent from sāyāhna. Not taken.

16:33 sāyāhna beginssunset 19:20
16:0916:3316:5717:2117:4518:0918:3318:5719:2119:45

0 of 167 minutes covered

Late afternoon of Wednesday 12 August

Taken. The only late afternoon Caturthī reaches.

16:32 sāyāhna beginssunset 19:18
16:0816:3216:5617:2017:4418:0818:3218:5619:2019:44

166 of 166 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 23:06 on Tue 11 Aug to 00:34 on Thu 13 Aug.

    1903-08-11T15:06:07Z → 1903-08-12T16:34:09Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:33–19:20 on the 11th, 16:32–19:18 on the 12th.

    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 167 minutes on the 11th and 166 of 166 on the 12th.

    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 13595 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 1903: Wednesday 12 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 1903 falls on Wednesday 12 August. Caturthī runs from 23:06 on Tue 11 Aug to 00:34 on Thu 13 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1903/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 12 Aug
Ahargaṇa, classicalDisc centre, no refractionWed 12 Aug
compat-drikpanchangComparison profileWed 12 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 11thCoveredSāyāhna 12thCoveredRuled
Los Angeles07:06 → 08:3416:02163 min16:010 min11 Aug
Chicago09:06 → 10:3416:09169 min16:080 min11 Aug
Jersey City10:06 → 11:3416:13168 min16:120 min11 Aug
Port of Spain11:06 → 12:3415:56150 min15:560 min11 Aug
London15:06 → 16:3416:34179 min16:322 min11 Aug
Durban17:06 → 18:3415:1722 min15:18131 min11 Aug
Dubai18:47 → 20:1516:010 min16:00157 min12 Aug
Delhi20:27 → 21:5516:160 min16:16159 min12 Aug
Kolkata20:27 → 21:5515:270 min15:26156 min12 Aug
Singapore22:01 → 23:2915:440 min15:43146 min12 Aug
Sydney01:06 → 02:3415:130 min15:13129 min12 Aug
Suva03:01 → 04:2915:320 min15:32137 min12 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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