Ruling · Bahulā Caturthī · 2099

Thursday 3 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 243 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 3 September

Taken. The only late afternoon Caturthī reaches.

16:11 sāyāhna beginssunset 18:46
15:4716:1116:3516:5917:2317:4718:1118:3518:59

155 of 155 minutes covered

Late afternoon of Friday 4 September

Caturthī is absent from sāyāhna. Not taken.

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

0 of 155 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 09:37 on Thu 3 Sep to 12:06 on Fri 4 Sep.

    2099-09-03T01:37:12Z → 2099-09-04T04:05:57Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:11–18:46 on the 3rd, 16:09–18:44 on the 4th.

    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 3rd and 0 of 155 on the 4th.

    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 14609 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 2099: Thursday 3 September.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 2099 falls on Thursday 3 September. Caturthī runs from 09:37 on Thu 3 Sep to 12:06 on Fri 4 Sep and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2099/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 3 Sep
Ahargaṇa, classicalDisc centre, no refractionThu 3 Sep
compat-drikpanchangComparison profileThu 3 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 3rdCoveredSāyāhna 4thCoveredRuled
Los Angeles18:37 → 21:0616:42153 min16:410 min2 Sep
Chicago20:37 → 23:0616:44156 min16:430 min3 Sep
Jersey City21:37 → 00:0616:49156 min16:480 min3 Sep
Port of Spain21:37 → 00:0615:47147 min15:460 min3 Sep
London02:37 → 05:0617:01161 min16:590 min3 Sep
Durban03:37 → 06:0615:24139 min15:240 min3 Sep
Dubai05:37 → 08:0616:05151 min16:040 min3 Sep
Delhi07:07 → 09:3616:08152 min16:080 min3 Sep
Kolkata07:07 → 09:3615:22150 min15:210 min3 Sep
Singapore09:37 → 12:0616:43145 min16:420 min3 Sep
Sydney11:37 → 14:0615:21137 min15:220 min3 Sep
Suva13:37 → 16:0615:38141 min15:3828 min3 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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