Ruling · Bahulā Caturthī · 2019

Monday 19 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 514 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 18 August

Caturthī is absent from sāyāhna. Not taken.

16:26 sāyāhna beginssunset 19:10
16:0216:2616:5017:1417:3818:0218:2618:5019:1419:38

0 of 163 minutes covered

Late afternoon of Monday 19 August

Taken. The only late afternoon Caturthī reaches.

16:26 sāyāhna beginssunset 19:08
16:0216:2616:5017:1417:3818:0218:2618:5019:1419:38

163 of 163 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 03:44 on Mon 19 Aug to 06:00 on Tue 20 Aug.

    2019-08-18T19:43:45Z → 2019-08-19T22:00:18Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:26–19:10 on the 18th, 16:26–19:08 on the 19th.

    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 163 minutes on the 18th and 163 of 163 on the 19th.

    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 30852 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 2019: Monday 19 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 2019 falls on Monday 19 August. Caturthī runs from 03:44 on Mon 19 Aug to 06:00 on Tue 20 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2019/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 19 Aug
Ahargaṇa, classicalDisc centre, no refractionMon 19 Aug
compat-drikpanchangComparison profileMon 19 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 18thCoveredSāyāhna 19thCoveredRuled
Los Angeles12:44 → 15:0016:56160 min16:560 min18 Aug
Chicago14:44 → 17:0017:01165 min17:000 min18 Aug
Jersey City15:44 → 18:0017:06164 min17:0555 min18 Aug
Port of Spain15:44 → 18:0015:54149 min15:53127 min18 Aug
London20:44 → 23:0017:240 min17:23173 min19 Aug
Durban21:44 → 00:0015:200 min15:20133 min19 Aug
Dubai23:44 → 02:0016:160 min16:15155 min19 Aug
Delhi01:14 → 03:3016:210 min16:20157 min19 Aug
Kolkata01:14 → 03:3015:320 min15:31154 min19 Aug
Singapore03:44 → 06:0016:470 min16:47146 min19 Aug
Sydney05:44 → 08:0015:160 min15:16131 min19 Aug
Suva07:44 → 10:0015:380 min15:38138 min19 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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