Ruling · Bahulā Caturthī · 2049

Monday 16 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 557 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 Monday 16 August

Taken. The only late afternoon Caturthī reaches.

16:28 sāyāhna beginssunset 19:11
16:0416:2816:5217:1617:4018:0418:2818:5219:1619:40

164 of 164 minutes covered

Late afternoon of Tuesday 17 August

Caturthī is absent from sāyāhna. Not taken.

16:27 sāyāhna beginssunset 19:10
16:0316:2716:5117:1517:3918:0318:2718:5119:1519:39

0 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 07:11 on Mon 16 Aug to 04:52 on Tue 17 Aug.

    2049-08-15T23:10:46Z → 2049-08-16T20:51:33Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:28–19:11 on the 16th, 16:27–19:10 on the 17th.

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

  3. 03

    Rule

    Caturthī must be present during sāyāhna. It covers 164 of 164 minutes on the 16th and 0 of 163 on the 17th.

    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 33414 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 2049: Monday 16 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 2049 falls on Monday 16 August. Caturthī runs from 07:11 on Mon 16 Aug to 04:52 on Tue 17 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/2049/bahula-chaturthi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 16 Aug
Ahargaṇa, classicalDisc centre, no refractionMon 16 Aug
compat-drikpanchangComparison profileMon 16 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 15thCoveredSāyāhna 16thCoveredRuled
Los Angeles16:11 → 13:5216:58161 min16:570 min15 Aug
Chicago18:11 → 15:5217:0499 min17:030 min15 Aug
Jersey City19:11 → 16:5217:0843 min17:070 min15 Aug
Port of Spain19:11 → 16:5215:550 min15:5457 min16 Aug
London00:11 → 21:5217:270 min17:26174 min16 Aug
Durban01:11 → 22:5215:190 min15:20133 min16 Aug
Dubai03:11 → 00:5216:170 min16:17156 min16 Aug
Delhi04:41 → 02:2216:220 min16:22158 min16 Aug
Kolkata04:41 → 02:2215:330 min15:33155 min16 Aug
Singapore07:11 → 04:5216:480 min16:48146 min16 Aug
Sydney09:11 → 06:5215:150 min15:16131 min16 Aug
Suva11:11 → 08:5215:380 min15:38138 min16 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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