Ruling · Bahulā Caturthī · 1954

Tuesday 17 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 257 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 17 August

Taken. The only late afternoon Caturthī reaches.

16:27 sāyāhna beginssunset 19:11
16:0316:2716:5117:1517:3918:0318:2718:5119:1519:39

164 of 164 minutes covered

Late afternoon of Wednesday 18 August

Caturthī is absent from sāyāhna. Not taken.

16:27 sāyāhna beginssunset 19:10
16:0316:2716:5117:1517:3918:0318:2718:5119:1519:39

0 of 163 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 12:10 on Tue 17 Aug to 09:30 on Wed 18 Aug.

    1954-08-17T04:10:04Z → 1954-08-18T01:29:31Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:27–19:11 on the 17th, 16:27–19:10 on the 18th.

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

  3. 03

    Rule

    Caturthī must be present during sāyāhna. It covers 164 of 164 minutes on the 17th and 0 of 163 on the 18th.

    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 15446 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 1954: Tuesday 17 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 1954 falls on Tuesday 17 August. Caturthī runs from 12:10 on Tue 17 Aug to 09:30 on Wed 18 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1954/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 17 Aug
Ahargaṇa, classicalDisc centre, no refractionTue 17 Aug
compat-drikpanchangComparison profileTue 17 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 17thCoveredSāyāhna 18thCoveredRuled
Los Angeles21:10 → 18:3016:5792 min16:570 min17 Aug
Chicago23:10 → 20:3017:03166 min17:020 min17 Aug
Jersey City00:10 → 21:3017:07165 min17:060 min17 Aug
Port of Spain00:10 → 21:3015:54149 min15:540 min17 Aug
London05:10 → 02:3017:25174 min17:240 min17 Aug
Durban06:10 → 03:3015:19133 min15:200 min17 Aug
Dubai08:10 → 05:3016:16156 min16:160 min17 Aug
Delhi09:40 → 07:0016:21158 min16:210 min17 Aug
Kolkata09:40 → 07:0015:32155 min15:320 min17 Aug
Singapore11:40 → 09:0016:17146 min16:170 min17 Aug
Sydney14:10 → 11:3015:15131 min15:160 min17 Aug
Suva16:10 → 13:3015:38106 min15:380 min17 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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