Ruling · Dattātreyotpatti (Datta Jayanti) · 1925

Sunday 29 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 46 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 Sunday 29 November

Taken. The only evening Pūrṇimā reaches.

16:57 sunsetpradoṣa ends 18:52
16:3316:5717:2117:4518:0918:3318:5719:21

115 of 115 minutes covered

Evening of Monday 30 November

Pūrṇimā is absent from pradoṣa. Not taken.

16:57 sunsetpradoṣa ends 18:52
16:3316:5717:2117:4518:0918:3318:5719:21

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 15:44 on Sun 29 Nov to 16:11 on Mon 30 Nov.

    1925-11-29T07:43:45Z → 1925-11-30T08:10:51Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 16:57–18:52 on the 29th, 16:57–18:52 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 2760 s

  5. 05

    Ruling

    Dattātreyotpatti, Baoding, 1925: Sunday 29 November.

    confidence: determinate

Say it like this

In Baoding, Dattātreyotpatti (Datta Jayanti) 1925 falls on Sunday 29 November. Pūrṇimā runs from 15:44 on Sun 29 Nov to 16:11 on Mon 30 Nov and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1925/dattatreyotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 29 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 29 Nov
compat-drikpanchangComparison profileSun 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 Angeles23:44 → 00:1116:44111 min16:440 min29 Nov
Chicago01:44 → 02:1116:21117 min16:210 min29 Nov
Jersey City02:44 → 03:1116:30116 min16:300 min29 Nov
Port of Spain03:44 → 04:1117:41100 min17:410 min29 Nov
London07:44 → 08:1115:56126 min15:560 min29 Nov
Durban09:44 → 10:1118:4081 min18:410 min29 Nov
Dubai11:44 → 12:1117:28106 min17:280 min29 Nov
Delhi13:14 → 13:4117:24108 min17:240 min29 Nov
Kolkata13:14 → 13:4116:51105 min16:510 min29 Nov
Singapore14:44 → 15:1117:5496 min17:550 min29 Nov
Sydney17:44 → 18:1118:4979 min18:500 min29 Nov
Suva19:44 → 20:1118:2811 min18:2887 min30 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

About Ahargaṇa