Ruling · Bahulā Caturthī · 1906

Tuesday 7 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 53 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 7 August

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

16:36 sāyāhna beginssunset 19:24
Caturthī begins 17:29:02
16:1216:3617:0017:2417:4818:1218:3619:0019:2419:48

115 of 168 minutes covered, the last 115

Late afternoon of Wednesday 8 August

Qualifies with 60 of 168 minutes. Not taken.

16:35 sāyāhna beginssunset 19:23
Caturthī ends 17:35:05
16:1116:3516:5917:2317:4718:1118:3518:5919:2319:47

60 of 168 minutes covered, the first 60

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

How it was decided

  1. 01

    Aṅga

    Caturthī runs from 17:29 on Tue 7 Aug to 17:35 on Wed 8 Aug.

    1906-08-07T09:29:02Z → 1906-08-08T09:35:06Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:36–19:24 on the 7th, 16:35–19:23 on the 8th.

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

  3. 03

    Rule

    Caturthī must be present during sāyāhna. It covers 115 of 168 minutes on the 7th and 60 of 168 on the 8th.

    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 3198 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 1906: Tuesday 7 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 1906 falls on Tuesday 7 August. Caturthī runs from 17:29 on Tue 7 Aug to 17:35 on Wed 8 Aug and covers 115 of 168 minutes of sāyāhna that late afternoon. It also reaches the next late afternoon for 60 minutes; by the rule the first late afternoon is taken.

ahargana.org/baoding/festivals/1906/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 7 Aug
Ahargaṇa, classicalDisc centre, no refractionTue 7 Aug
compat-drikpanchangComparison profileTue 7 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 7thCoveredSāyāhna 8thCoveredRuled
Los Angeles01:29 → 01:3516:05164 min16:040 min7 Aug
Chicago03:29 → 03:3516:12171 min16:110 min7 Aug
Jersey City04:29 → 04:3516:16170 min16:150 min7 Aug
Port of Spain05:29 → 05:3515:57150 min15:570 min7 Aug
London09:29 → 09:3516:38182 min16:370 min7 Aug
Durban11:29 → 11:3515:16130 min15:170 min7 Aug
Dubai13:10 → 13:1616:03158 min16:020 min7 Aug
Delhi14:59 → 15:0516:27161 min16:270 min7 Aug
Kolkata14:59 → 15:0515:37157 min15:370 min7 Aug
Singapore16:29 → 16:3515:49106 min15:4946 min7 Aug
Sydney19:29 → 19:3515:120 min15:12127 min8 Aug
Suva21:24 → 21:3015:320 min15:32136 min8 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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