Ruling · Bahulā Caturthī · 1963

Thursday 8 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 231 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 Thursday 8 August

Taken. The only late afternoon Caturthī reaches.

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

168 of 168 minutes covered

Late afternoon of Friday 9 August

Caturthī is absent from sāyāhna. Not taken.

16:34 sāyāhna beginssunset 19:21
16:1016:3416:5817:2217:4618:1018:3418:5819:2219:46

0 of 167 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 12:44 on Thu 8 Aug to 10:32 on Fri 9 Aug.

    1963-08-08T04:43:43Z → 1963-08-09T02:32:11Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:35–19:23 on the 8th, 16:34–19:21 on the 9th.

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

  3. 03

    Rule

    Caturthī must be present during sāyāhna. It covers 168 of 168 minutes on the 8th and 0 of 167 on the 9th.

    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 13874 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 1963: Thursday 8 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 1963 falls on Thursday 8 August. Caturthī runs from 12:44 on Thu 8 Aug to 10:32 on Fri 9 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1963/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 8 Aug
Ahargaṇa, classicalDisc centre, no refractionThu 8 Aug
compat-drikpanchangComparison profileThu 8 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 8thCoveredSāyāhna 9thCoveredRuled
Los Angeles21:44 → 19:3217:04148 min17:030 min8 Aug
Chicago23:44 → 21:3217:11170 min17:100 min8 Aug
Jersey City00:44 → 22:3217:15169 min17:140 min8 Aug
Port of Spain00:44 → 22:3215:57150 min15:570 min8 Aug
London05:44 → 03:3217:37181 min17:360 min8 Aug
Durban06:44 → 04:3215:17130 min15:170 min8 Aug
Dubai08:44 → 06:3216:21158 min16:210 min8 Aug
Delhi10:14 → 08:0216:27160 min16:260 min8 Aug
Kolkata10:14 → 08:0215:37157 min15:370 min8 Aug
Singapore12:14 → 10:0216:19146 min16:190 min8 Aug
Sydney14:44 → 12:3215:12127 min15:120 min8 Aug
Suva16:44 → 14:3215:3770 min15:370 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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