Ruling · Bahulā Caturthī · 1989

Sunday 20 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 260 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 Saturday 19 August

Caturthī is absent from sāyāhna. Not taken.

17:25 sāyāhna beginssunset 20:08
17:0117:2517:4918:1318:3719:0119:2519:4920:1320:37

0 of 163 minutes covered

Late afternoon of Sunday 20 August

Taken. The only late afternoon Caturthī reaches.

17:24 sāyāhna beginssunset 20:06
17:0017:2417:4818:1218:3619:0019:2419:4820:1220:36

162 of 162 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 03:27 on Sun 20 Aug to 00:26 on Mon 21 Aug.

    1989-08-19T18:26:45Z → 1989-08-20T15:26:12Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 17:25–20:08 on the 19th, 17:24–20:06 on the 20th.

    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 19th and 162 of 162 on the 20th.

    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 15586 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 1989: Sunday 20 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 1989 falls on Sunday 20 August. Caturthī runs from 03:27 on Sun 20 Aug to 00:26 on Mon 21 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1989/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 20 Aug
Ahargaṇa, classicalDisc centre, no refractionSun 20 Aug
compat-drikpanchangComparison profileSun 20 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 19thCoveredSāyāhna 20thCoveredRuled
Los Angeles11:27 → 08:2616:55159 min16:550 min19 Aug
Chicago13:27 → 10:2617:00164 min16:590 min19 Aug
Jersey City14:27 → 11:2617:05163 min17:040 min19 Aug
Port of Spain14:27 → 11:2615:53149 min15:530 min19 Aug
London19:27 → 16:2617:2248 min17:210 min19 Aug
Durban20:27 → 17:2615:200 min15:20126 min20 Aug
Dubai22:27 → 19:2616:150 min16:14155 min20 Aug
Delhi23:57 → 20:5616:200 min16:19157 min20 Aug
Kolkata23:57 → 20:5615:310 min15:30154 min20 Aug
Singapore02:27 → 23:2616:470 min16:47146 min20 Aug
Sydney04:27 → 01:2615:160 min15:17132 min20 Aug
Suva06:27 → 03:2615:380 min15:38139 min20 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

About Ahargaṇa