Ruling · Dattātreyotpatti (Datta Jayanti) · 1944

Wednesday 29 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 343 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Wednesday 29 November

Taken. The only evening Pūrṇimā reaches.

17:57 sunsetpradoṣa ends 19:52
17:3317:5718:2118:4519:0919:3319:5720:21

115 of 115 minutes covered

Evening of Thursday 30 November

Pūrṇimā is absent from pradoṣa. Not taken.

17:57 sunsetpradoṣa ends 19:52
17:3317:5718:2118:4519:0919:3319:5720:21

0 of 115 minutes covered

Pūrṇimā presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 12:14 on Wed 29 Nov to 09:52 on Thu 30 Nov.

    1944-11-29T03:13:44Z → 1944-11-30T00:51:44Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:57–19:52 on the 29th, 17:57–19:52 on the 30th.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pūrṇimā must be present during pradoṣa. It covers 115 of 115 minutes on the 29th and 0 of 115 on the 30th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one evening qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 20596 s

  5. 05

    Ruling

    Dattātreyotpatti, Baoding, 1944: Wednesday 29 November.

    confidence: determinate

Say it like this

In Baoding, Dattātreyotpatti (Datta Jayanti) 1944 falls on Wednesday 29 November. Pūrṇimā runs from 12:14 on Wed 29 Nov to 09:52 on Thu 30 Nov and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1944/dattatreyotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 29 Nov
Ahargaṇa, classicalDisc centre, no refractionWed 29 Nov
compat-drikpanchangComparison profileWed 29 Nov
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/dattatreyotpatti · ruleset 2026.3-draft

Month
Mārgaśīrṣa, amānta
Pakṣa · aṅga
Śukla · Pūrṇimā
Kāla
Pradoṣa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 104

“S 15 Dattatreyotpatti (pradosa).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePūrṇimāSunset 29thCoveredSunset 30thCoveredRuled
Los Angeles20:14 → 17:5217:448 min17:440 min29 Nov
Chicago22:14 → 19:5217:21117 min17:210 min29 Nov
Jersey City23:14 → 20:5217:30116 min17:300 min29 Nov
Port of Spain00:14 → 21:5218:41100 min18:410 min29 Nov
London04:14 → 01:5216:56126 min16:550 min29 Nov
Durban05:14 → 02:5218:4181 min18:420 min29 Nov
Dubai07:14 → 04:5217:28106 min17:280 min29 Nov
Delhi09:44 → 07:2218:24108 min18:240 min29 Nov
Kolkata09:44 → 07:2217:51105 min17:510 min29 Nov
Singapore12:14 → 09:5219:5496 min19:550 min29 Nov
Sydney13:14 → 10:5218:4979 min18:500 min29 Nov
Suva15:14 → 12:5218:2887 min18:280 min29 Nov
Profile · tradition
pac-rp@2026.1 · smarta
Rule
dattatreyotpatti@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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