Ruling · Bahulā Caturthī · 2093

Monday 10 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 93 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 9 August

Caturthī is absent from sāyāhna. Not taken.

16:34 sāyāhna beginssunset 19:20
16:1016:3416:5817:2217:4618:1018:3418:5819:2219:46

0 of 167 minutes covered

Late afternoon of Monday 10 August

Taken. The only late afternoon Caturthī reaches.

16:33 sāyāhna beginssunset 19:19
16:0916:3316:5717:2117:4518:0918:3318:5719:2119:45

166 of 166 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 23:00 on Sun 9 Aug to 20:51 on Mon 10 Aug.

    2093-08-09T14:59:40Z → 2093-08-10T12:51:21Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:34–19:20 on the 9th, 16:33–19:19 on the 10th.

    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 167 minutes on the 9th and 166 of 166 on the 10th.

    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 5551 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 2093: Monday 10 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 2093 falls on Monday 10 August. Caturthī runs from 23:00 on Sun 9 Aug to 20:51 on Mon 10 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2093/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 10 Aug
Ahargaṇa, classicalDisc centre, no refractionMon 10 Aug
compat-drikpanchangComparison profileMon 10 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 9thCoveredSāyāhna 10thCoveredRuled
Los Angeles08:00 → 05:5117:03163 min17:020 min9 Aug
Chicago10:00 → 07:5117:09169 min17:080 min9 Aug
Jersey City11:00 → 08:5117:13168 min17:130 min9 Aug
Port of Spain11:00 → 08:5115:57150 min15:570 min9 Aug
London16:00 → 13:5117:34179 min17:330 min9 Aug
Durban17:00 → 14:5115:1829 min15:180 min9 Aug
Dubai19:00 → 16:5116:210 min16:2031 min10 Aug
Delhi20:30 → 18:2116:260 min16:25116 min10 Aug
Kolkata20:30 → 18:2115:360 min15:36156 min10 Aug
Singapore23:00 → 20:5116:490 min16:49146 min10 Aug
Sydney01:00 → 22:5115:140 min15:14129 min10 Aug
Suva03:00 → 00:5115:380 min15:38137 min10 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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