Ruling · Bahulā Caturthī · 2018

Thursday 30 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 315 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 29 August

Caturthī is absent from sāyāhna. Not taken.

16:16 sāyāhna beginssunset 18:54
15:5216:1616:4017:0417:2817:5218:1618:4019:04

0 of 158 minutes covered

Late afternoon of Thursday 30 August

Taken. The only late afternoon Caturthī reaches.

16:15 sāyāhna beginssunset 18:52
15:5116:1516:3917:0317:2717:5118:1518:3919:03

157 of 157 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 00:08 on Thu 30 Aug to 00:40 on Fri 31 Aug.

    2018-08-29T16:08:27Z → 2018-08-30T16:39:33Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:16–18:54 on the 29th, 16:15–18:52 on the 30th.

    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 158 minutes on the 29th and 157 of 157 on the 30th.

    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 18896 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 2018: Thursday 30 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 2018 falls on Thursday 30 August. Caturthī runs from 00:08 on Thu 30 Aug to 00:40 on Fri 31 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2018/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 30 Aug
Ahargaṇa, classicalDisc centre, no refractionThu 30 Aug
compat-drikpanchangComparison profileThu 30 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 29thCoveredSāyāhna 30thCoveredRuled
Los Angeles09:08 → 09:4016:47156 min16:460 min29 Aug
Chicago11:08 → 11:4016:50159 min16:480 min29 Aug
Jersey City12:08 → 12:4016:55158 min16:530 min29 Aug
Port of Spain12:08 → 12:4015:49148 min15:480 min29 Aug
London17:08 → 17:4017:08165 min17:0733 min29 Aug
Durban18:08 → 18:4015:220 min15:22137 min30 Aug
Dubai20:08 → 20:4016:080 min16:07152 min30 Aug
Delhi21:38 → 22:1016:120 min16:12153 min30 Aug
Kolkata21:38 → 22:1015:250 min15:24151 min30 Aug
Singapore00:08 → 00:4016:440 min16:44146 min30 Aug
Sydney02:08 → 02:4015:190 min15:20136 min30 Aug
Suva04:08 → 04:4015:380 min15:38140 min30 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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