Ruling · Bahulā Caturthī · 2071

Friday 14 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 126 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 Friday 14 August

Taken. The only late afternoon Caturthī reaches.

16:30 sāyāhna beginssunset 19:14
16:0616:3016:5417:1817:4218:0618:3018:5419:1819:42

165 of 165 minutes covered

Late afternoon of Saturday 15 August

Caturthī is absent from sāyāhna. Not taken.

16:29 sāyāhna beginssunset 19:13
16:0516:2916:5317:1717:4118:0518:2918:5319:1719:41

0 of 164 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 13:15 on Fri 14 Aug to 14:23 on Sat 15 Aug.

    2071-08-14T05:14:38Z → 2071-08-15T06:22:57Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:30–19:14 on the 14th, 16:29–19:13 on the 15th.

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

  3. 03

    Rule

    Caturthī must be present during sāyāhna. It covers 165 of 165 minutes on the 14th and 0 of 164 on the 15th.

    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 7561 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 2071: Friday 14 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 2071 falls on Friday 14 August. Caturthī runs from 13:15 on Fri 14 Aug to 14:23 on Sat 15 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2071/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 14 Aug
Ahargaṇa, classicalDisc centre, no refractionFri 14 Aug
compat-drikpanchangComparison profileFri 14 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 14thCoveredSāyāhna 15thCoveredRuled
Los Angeles22:15 → 23:2316:59161 min16:590 min14 Aug
Chicago00:15 → 01:2317:05167 min17:040 min14 Aug
Jersey City01:15 → 02:2317:10166 min17:090 min14 Aug
Port of Spain01:15 → 02:2315:55150 min15:550 min14 Aug
London06:15 → 07:2317:29176 min17:270 min14 Aug
Durban07:15 → 08:2315:19132 min15:190 min14 Aug
Dubai09:15 → 10:2316:18156 min16:170 min14 Aug
Delhi10:45 → 11:5316:23158 min16:230 min14 Aug
Kolkata10:45 → 11:5315:34155 min15:330 min14 Aug
Singapore13:15 → 14:2316:48146 min16:480 min14 Aug
Sydney15:15 → 16:2315:15130 min15:1568 min14 Aug
Suva17:15 → 18:2315:3841 min15:38138 min14 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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