Ruling · Bahulā Caturthī · 2007

Friday 31 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 360 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 31 August

Taken. The only late afternoon Caturthī reaches.

16:14 sāyāhna beginssunset 18:51
15:5016:1416:3817:0217:2617:5018:1418:3819:02

157 of 157 minutes covered

Late afternoon of Saturday 1 September

Caturthī is absent from sāyāhna. Not taken.

16:13 sāyāhna beginssunset 18:49
15:4916:1316:3717:0117:2517:4918:1318:3719:01

0 of 157 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 10:14 on Fri 31 Aug to 07:18 on Sat 1 Sep.

    2007-08-31T02:14:26Z → 2007-08-31T23:17:45Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:14–18:51 on the 31st, 16:13–18:49 on the 1st.

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

  3. 03

    Rule

    Caturthī must be present during sāyāhna. It covers 157 of 157 minutes on the 31st and 0 of 157 on the 1st.

    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 21570 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 2007: Friday 31 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 2007 falls on Friday 31 August. Caturthī runs from 10:14 on Fri 31 Aug to 07:18 on Sat 1 Sep and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2007/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 31 Aug
Ahargaṇa, classicalDisc centre, no refractionFri 31 Aug
compat-drikpanchangComparison profileFri 31 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 31stCoveredSāyāhna 1stCoveredRuled
Los Angeles19:14 → 16:1816:450 min16:440 min30 Aug
Chicago21:14 → 18:1816:4890 min16:470 min31 Aug
Jersey City22:14 → 19:1816:53145 min16:520 min31 Aug
Port of Spain22:14 → 19:1815:48148 min15:480 min31 Aug
London03:14 → 00:1817:06164 min17:050 min31 Aug
Durban04:14 → 01:1815:23137 min15:230 min31 Aug
Dubai06:14 → 03:1816:07152 min16:060 min31 Aug
Delhi07:44 → 04:4816:11153 min16:100 min31 Aug
Kolkata07:44 → 04:4815:24151 min15:230 min31 Aug
Singapore10:14 → 07:1816:43146 min16:430 min31 Aug
Sydney12:14 → 09:1815:20136 min15:200 min31 Aug
Suva14:14 → 11:1815:38141 min15:380 min31 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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