Ruling · Bahulā Caturthī · 1979

Saturday 11 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 129 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 Friday 10 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 Saturday 11 August

Taken. The only late afternoon Caturthī reaches.

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

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 00:32 on Sat 11 Aug to 21:28 on Sat 11 Aug.

    1979-08-10T16:32:16Z → 1979-08-11T13:27:37Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:33–19:20 on the 10th, 16:33–19:19 on the 11th.

    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 10th and 166 of 166 on the 11th.

    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 7724 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 1979: Saturday 11 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 1979 falls on Saturday 11 August. Caturthī runs from 00:32 on Sat 11 Aug to 21:28 on Sat 11 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1979/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 11 Aug
Ahargaṇa, classicalDisc centre, no refractionSat 11 Aug
compat-drikpanchangComparison profileSat 11 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 10thCoveredSāyāhna 11thCoveredRuled
Los Angeles09:32 → 06:2817:02163 min17:020 min10 Aug
Chicago11:32 → 08:2817:09169 min17:080 min10 Aug
Jersey City12:32 → 09:2817:13168 min17:120 min10 Aug
Port of Spain12:32 → 09:2815:57150 min15:560 min10 Aug
London17:32 → 14:2817:34179 min17:330 min10 Aug
Durban18:32 → 15:2815:170 min15:1810 min11 Aug
Dubai20:32 → 17:2816:200 min16:2068 min11 Aug
Delhi22:02 → 18:5816:260 min16:25152 min11 Aug
Kolkata22:02 → 18:5815:360 min15:36156 min11 Aug
Singapore00:02 → 20:5816:190 min16:19146 min11 Aug
Sydney02:32 → 23:2815:130 min15:13128 min11 Aug
Suva04:32 → 01:2815:370 min15:37137 min11 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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