Ruling · Bahulā Caturthī · 2012

Sunday 5 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 473 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 5 August

Taken. The only late afternoon Caturthī reaches.

16:36 sāyāhna beginssunset 19:25
16:1216:3617:0017:2417:4818:1218:3619:0019:2419:48

168 of 168 minutes covered

Late afternoon of Monday 6 August

Caturthī is absent from sāyāhna. Not taken.

16:36 sāyāhna beginssunset 19:24
16:1216:3617:0017:2417:4818:1218:3619:0019:2419:48

0 of 168 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 08:24 on Sun 5 Aug to 08:43 on Mon 6 Aug.

    2012-08-05T00:23:49Z → 2012-08-06T00:42:46Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:36–19:25 on the 5th, 16:36–19:24 on the 6th.

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

  3. 03

    Rule

    Caturthī must be present during sāyāhna. It covers 168 of 168 minutes on the 5th and 0 of 168 on the 6th.

    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 28372 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 2012: Sunday 5 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 2012 falls on Sunday 5 August. Caturthī runs from 08:24 on Sun 5 Aug to 08:43 on Mon 6 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2012/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 5 Aug
Ahargaṇa, classicalDisc centre, no refractionSun 5 Aug
compat-drikpanchangComparison profileSun 5 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 5thCoveredSāyāhna 6thCoveredRuled
Los Angeles17:24 → 17:4317:0538 min17:040 min4 Aug
Chicago19:24 → 19:4317:12150 min17:120 min4 Aug
Jersey City20:24 → 20:4317:17170 min17:160 min5 Aug
Port of Spain20:24 → 20:4315:58151 min15:570 min5 Aug
London01:24 → 01:4317:39182 min17:380 min5 Aug
Durban02:24 → 02:4315:16130 min15:170 min5 Aug
Dubai04:24 → 04:4316:22158 min16:220 min5 Aug
Delhi05:54 → 06:1316:28161 min16:270 min5 Aug
Kolkata05:54 → 06:1315:38157 min15:370 min5 Aug
Singapore08:24 → 08:4316:49146 min16:490 min5 Aug
Sydney10:24 → 10:4315:11127 min15:120 min5 Aug
Suva12:24 → 12:4315:37136 min15:370 min5 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