Ruling · Bahulā Caturthī · 1965

Monday 16 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 169 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 Sunday 15 August

Caturthī is absent from sāyāhna. Not taken.

16:29 sāyāhna beginssunset 19:13
16:0516:2916:5317:1717:4118:0518:2918:5319:1719:41

0 of 164 minutes covered

Late afternoon of Monday 16 August

Taken. The only late afternoon Caturthī reaches.

16:28 sāyāhna beginssunset 19:12
16:0416:2816:5217:1617:4018:0418:2818:5219:1619:40

164 of 164 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 22:03 on Sun 15 Aug to 23:18 on Mon 16 Aug.

    1965-08-15T14:02:42Z → 1965-08-16T15:17:45Z

  2. 02

    Kāla

    Sāyāhna is last 3 of 15 day muhūrtas: 16:29–19:13 on the 15th, 16:28–19:12 on the 16th.

    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 164 minutes on the 15th and 164 of 164 on the 16th.

    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 10160 s

  5. 05

    Ruling

    Bahulā Caturthī, Baoding, 1965: Monday 16 August.

    confidence: determinate

Say it like this

In Baoding, Bahulā Caturthī 1965 falls on Monday 16 August. Caturthī runs from 22:03 on Sun 15 Aug to 23:18 on Mon 16 Aug and covers all of sāyāhna that late afternoon.

ahargana.org/baoding/festivals/1965/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 Angeles07:03 → 08:1816:59161 min16:580 min15 Aug
Chicago09:03 → 10:1817:04166 min17:030 min15 Aug
Jersey City10:03 → 11:1817:09166 min17:080 min15 Aug
Port of Spain10:03 → 11:1815:55150 min15:540 min15 Aug
London15:03 → 16:1817:28175 min17:260 min15 Aug
Durban16:03 → 17:1815:1988 min15:19119 min15 Aug
Dubai18:03 → 19:1816:1751 min16:17156 min15 Aug
Delhi19:33 → 20:4816:220 min16:22158 min16 Aug
Kolkata19:33 → 20:4815:330 min15:33155 min16 Aug
Singapore21:33 → 22:4816:180 min16:18146 min16 Aug
Sydney00:03 → 01:1815:150 min15:15130 min16 Aug
Suva02:03 → 03:1815:380 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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