Ruling · Bahulā Caturthī · 2069

Wednesday 4 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 460 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 Wednesday 4 September

Taken. The only late afternoon Caturthī reaches.

16:09 sāyāhna beginssunset 18:44
15:4516:0916:3316:5717:2117:4518:0918:3318:57

155 of 155 minutes covered

Late afternoon of Thursday 5 September

Caturthī is absent from sāyāhna. Not taken.

16:08 sāyāhna beginssunset 18:42
15:4416:0816:3216:5617:2017:4418:0818:3218:56

0 of 154 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 08:29 on Wed 4 Sep to 05:35 on Thu 5 Sep.

    2069-09-04T00:28:50Z → 2069-09-04T21:35:21Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:09–18:44 on the 4th, 16:08–18:42 on the 5th.

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

  3. 03

    Rule

    Caturthī must be present during sāyāhna. It covers 155 of 155 minutes on the 4th and 0 of 154 on the 5th.

    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 27604 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 2069: Wednesday 4 September.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 2069 falls on Wednesday 4 September. Caturthī runs from 08:29 on Wed 4 Sep to 05:35 on Thu 5 Sep and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2069/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 4 Sep
Ahargaṇa, classicalDisc centre, no refractionWed 4 Sep
compat-drikpanchangComparison profileWed 4 Sep
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 4thCoveredSāyāhna 5thCoveredRuled
Los Angeles17:29 → 14:3516:410 min16:400 min3 Sep
Chicago19:29 → 16:3516:420 min16:410 min3 Sep
Jersey City20:29 → 17:3516:4748 min16:460 min4 Sep
Port of Spain20:29 → 17:3515:46109 min15:450 min4 Sep
London01:29 → 22:3516:59160 min16:570 min4 Sep
Durban02:29 → 23:3515:24139 min15:240 min4 Sep
Dubai04:29 → 01:3516:03151 min16:030 min4 Sep
Delhi05:59 → 03:0516:07151 min16:060 min4 Sep
Kolkata05:59 → 03:0515:20150 min15:200 min4 Sep
Singapore08:29 → 05:3516:42145 min16:420 min4 Sep
Sydney10:29 → 07:3515:21138 min15:220 min4 Sep
Suva12:29 → 09:3515:38142 min15:380 min4 Sep
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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