Ruling · Dattātreyotpatti (Datta Jayanti) · 2095

Saturday 10 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 16 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 Saturday 10 December

Taken. The only evening Pūrṇimā reaches.

16:56 sunsetpradoṣa ends 18:52
Pūrṇimā begins 17:11:41
16:3216:5617:2017:4418:0818:3218:5619:20

100 of 116 minutes covered, the last 100

Evening of Sunday 11 December

Pūrṇimā is absent from pradoṣa. Not taken.

16:56 sunsetpradoṣa ends 18:52
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 17:12 on Sat 10 Dec to 14:23 on Sun 11 Dec.

    2095-12-10T09:11:41Z → 2095-12-11T06:22:58Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 16:56–18:52 on the 10th, 16:56–18:52 on the 11th.

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

  3. 03

    Rule

    Pūrṇimā must be present during pradoṣa. It covers 100 of 116 minutes on the 10th and 0 of 116 on the 11th.

    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 940 s

  5. 05

    Ruling

    Dattātreyotpatti, Baoding, 2095: Saturday 10 December.

    confidence: determinate

Say it like this

In Baoding, Dattātreyotpatti (Datta Jayanti) 2095 falls on Saturday 10 December. Pūrṇimā runs from 17:12 on Sat 10 Dec to 14:23 on Sun 11 Dec and covers 100 of 116 minutes of pradoṣa that evening.

ahargana.org/baoding/festivals/2095/dattatreyotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 10 Dec
Ahargaṇa, classicalDisc centre, no refractionSat 10 Dec
compat-drikpanchangComparison profileSat 10 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 10thCoveredSunset 11thCoveredRuled
Los Angeles01:12 → 22:2316:44113 min16:440 min10 Dec
Chicago03:12 → 00:2316:19119 min16:200 min10 Dec
Jersey City04:12 → 01:2316:29118 min16:290 min10 Dec
Port of Spain05:12 → 02:2317:44100 min17:450 min10 Dec
London09:12 → 06:2315:51129 min15:510 min10 Dec
Durban11:12 → 08:2318:4980 min18:500 min10 Dec
Dubai13:12 → 10:2317:30107 min17:300 min10 Dec
Delhi14:42 → 11:5317:25109 min17:250 min10 Dec
Kolkata14:42 → 11:5316:53106 min16:530 min10 Dec
Singapore17:12 → 14:2318:5996 min18:590 min10 Dec
Sydney20:12 → 17:2319:5864 min19:590 min10 Dec
Suva21:12 → 18:2318:350 min18:350 min10 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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