Ruling · Dattātreyotpatti (Datta Jayanti) · 2093

Wednesday 2 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 630 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 2 December

Taken. The only evening Pūrṇimā reaches.

16:56 sunsetpradoṣa ends 18:51
16:3216:5617:2017:4418:0818:3218:5619:20

115 of 115 minutes covered

Evening of Thursday 3 December

Pūrṇimā is absent from pradoṣa. Not taken.

16:56 sunsetpradoṣa ends 18:51
16:3216:5617:2017:4418:0818:3218:5619:20

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 05:32 on Wed 2 Dec to 06:26 on Thu 3 Dec.

    2093-12-01T21:31:33Z → 2093-12-02T22:25:42Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 16:56–18:51 on the 2nd, 16:56–18:51 on the 3rd.

    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 2nd and 0 of 115 on the 3rd.

    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 37823 s

  5. 05

    Ruling

    Dattātreyotpatti, Baoding, 2093: Wednesday 2 December.

    confidence: determinate

Say it like this

In Baoding, Dattātreyotpatti (Datta Jayanti) 2093 falls on Wednesday 2 December. Pūrṇimā runs from 05:32 on Wed 2 Dec to 06:26 on Thu 3 Dec and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2093/dattatreyotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 2 Dec
Ahargaṇa, classicalDisc centre, no refractionWed 2 Dec
compat-drikpanchangComparison profileWed 2 Dec
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 1stCoveredSunset 2ndCoveredRuled
Los Angeles13:32 → 14:2616:43112 min16:430 min1 Dec
Chicago15:32 → 16:2616:20117 min16:206 min1 Dec
Jersey City16:32 → 17:2616:29114 min16:2957 min1 Dec
Port of Spain17:32 → 18:2617:42100 min17:4244 min1 Dec
London21:32 → 22:2615:540 min15:54127 min2 Dec
Durban23:32 → 00:2618:430 min18:4481 min2 Dec
Dubai01:32 → 02:2617:290 min17:29107 min2 Dec
Delhi03:02 → 03:5617:240 min17:24109 min2 Dec
Kolkata03:02 → 03:5616:510 min16:51105 min2 Dec
Singapore05:32 → 06:2618:550 min18:5696 min2 Dec
Sydney08:32 → 09:2619:520 min19:5278 min2 Dec
Suva09:32 → 10:2618:300 min18:3087 min2 Dec
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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