Ruling · Bahulā Caturthī · 1999

Monday 30 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 430 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 Sunday 29 August

Caturthī is absent from sāyāhna. Not taken.

16:16 sāyāhna beginssunset 18:54
15:5216:1616:4017:0417:2817:5218:1618:4019:0419:28

0 of 158 minutes covered

Late afternoon of Monday 30 August

Taken. The only late afternoon Caturthī reaches.

16:15 sāyāhna beginssunset 18:53
15:5116:1516:3917:0317:2717:5118:1518:3919:0319:27

158 of 158 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 03:59 on Mon 30 Aug to 02:02 on Tue 31 Aug.

    1999-08-29T19:58:38Z → 1999-08-30T18:02:13Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:16–18:54 on the 29th, 16:15–18:53 on the 30th.

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

  3. 03

    Rule

    Caturthī must be present during sāyāhna. It covers 0 of 158 minutes on the 29th and 158 of 158 on the 30th.

    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 25778 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 1999: Monday 30 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 1999 falls on Monday 30 August. Caturthī runs from 03:59 on Mon 30 Aug to 02:02 on Tue 31 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1999/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 30 Aug
Ahargaṇa, classicalDisc centre, no refractionMon 30 Aug
compat-drikpanchangComparison profileMon 30 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 29thCoveredSāyāhna 30thCoveredRuled
Los Angeles12:59 → 11:0216:47156 min16:460 min29 Aug
Chicago14:59 → 13:0216:50159 min16:490 min29 Aug
Jersey City15:59 → 14:0216:55159 min16:540 min29 Aug
Port of Spain15:59 → 14:0215:49139 min15:490 min29 Aug
London20:59 → 19:0217:090 min17:08115 min30 Aug
Durban21:59 → 20:0215:220 min15:22137 min30 Aug
Dubai23:59 → 22:0216:080 min16:08152 min30 Aug
Delhi01:29 → 23:3216:130 min16:12153 min30 Aug
Kolkata01:29 → 23:3215:250 min15:24151 min30 Aug
Singapore03:59 → 02:0216:440 min16:44146 min30 Aug
Sydney05:59 → 04:0215:190 min15:20136 min30 Aug
Suva07:59 → 06:0215:380 min15:38140 min30 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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