Ruling · Dattātreyotpatti (Datta Jayanti) · 1995

Wednesday 6 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 449 minutes.

Decide it for

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 6 December

Taken. The only evening Pūrṇimā reaches.

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

116 of 116 minutes covered

Evening of Thursday 7 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 116 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 07:15 on Wed 6 Dec to 09:27 on Thu 7 Dec.

    1995-12-05T23:15:12Z → 1995-12-07T01:26:54Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 16:56–18:51 on the 6th, 16:56–18:51 on the 7th.

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

  3. 03

    Rule

    Pūrṇimā must be present during pradoṣa. It covers 116 of 116 minutes on the 6th and 0 of 116 on the 7th.

    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 26928 s

  5. 05

    Ruling

    Dattātreyotpatti, Baoding, 1995: Wednesday 6 December.

    confidence: determinate

Say it like this

In Baoding, Dattātreyotpatti (Datta Jayanti) 1995 falls on Wednesday 6 December. Pūrṇimā runs from 07:15 on Wed 6 Dec to 09:27 on Thu 7 Dec and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1995/dattatreyotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 6 Dec
Ahargaṇa, classicalDisc centre, no refractionWed 6 Dec
compat-drikpanchangComparison profileWed 6 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 5thCoveredSunset 7thCoveredRuled
Los Angeles15:15 → 17:2716:43112 min16:430 min5 Dec
Chicago17:15 → 19:2716:1962 min16:190 min6 Dec
Jersey City18:15 → 20:2716:2910 min16:280 min6 Dec
Port of Spain19:15 → 21:2717:427 min17:430 min6 Dec
London23:15 → 01:2715:530 min15:520 min6 Dec
Durban01:15 → 03:2718:450 min18:470 min6 Dec
Dubai03:15 → 05:2717:290 min17:290 min6 Dec
Delhi04:45 → 06:5717:240 min17:240 min6 Dec
Kolkata04:45 → 06:5716:510 min16:520 min6 Dec
Singapore07:15 → 09:2718:560 min18:570 min6 Dec
Sydney10:15 → 12:2719:540 min19:550 min6 Dec
Suva11:15 → 13:2718:310 min18:320 min6 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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