Ruling · Dyūta Pratipad · 1990

Friday 19 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 315 minutes.

Decide it for

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

The two forenoons

One ghaṭī is 24 minutes. Pūrvāhṇa is first 5 of 15 day muhūrtas.

Forenoon of Friday 19 October

Taken. The only forenoon Pratipadā reaches.

06:31 sunrisepūrvāhṇa ends 10:12
06:0706:5507:4308:3109:1910:07

221 of 221 minutes covered

Forenoon of Saturday 20 October

Pratipadā is absent from pūrvāhṇa. Not taken.

06:32 sunrisepūrvāhṇa ends 10:13
06:0806:5607:4408:3209:2010:08

0 of 220 minutes covered

Pratipadā presentPūrvāhṇa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pratipadā runs from 23:37 on Thu 18 Oct to 01:18 on Sat 20 Oct.

    1990-10-18T15:36:41Z → 1990-10-19T17:17:35Z

  2. 02

    Kāla

    Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:31–10:12 on the 19th, 06:32–10:13 on the 20th.

    purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be present during pūrvāhṇa. It covers 221 of 221 minutes on the 19th and 0 of 220 on the 20th.

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

  4. 04

    Tie-break

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

    priority: unstated → only-day · margin 18875 s

  5. 05

    Ruling

    Dyūta Pratipad, Baoding, 1990: Friday 19 October.

    confidence: determinate

Say it like this

In Baoding, Dyūta Pratipad 1990 falls on Friday 19 October. Pratipadā runs from 23:37 on Thu 18 Oct to 01:18 on Sat 20 Oct and covers all of pūrvāhṇa that forenoon.

ahargana.org/baoding/festivals/1990/dyuta-pratipad · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 19 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 19 Oct
compat-drikpanchangComparison profileFri 19 Oct
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/dyuta-pratipad · ruleset 2026.3-draft

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

“S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePratipadāSunrise 18thCoveredSunrise 19thCoveredRuled
Los Angeles08:37 → 10:1807:01129 min07:02196 min19 Oct
Chicago10:37 → 12:1807:069 min07:08218 min19 Oct
Jersey City11:37 → 13:1807:110 min07:12219 min19 Oct
Port of Spain11:37 → 13:1805:550 min05:55237 min19 Oct
London16:37 → 18:1807:290 min07:31209 min19 Oct
Durban17:37 → 19:1805:150 min05:14258 min19 Oct
Dubai19:37 → 21:1806:180 min06:19230 min19 Oct
Delhi21:07 → 22:4806:240 min06:24228 min19 Oct
Kolkata21:07 → 22:4805:340 min05:35231 min19 Oct
Singapore23:37 → 01:1806:480 min06:47241 min19 Oct
Sydney01:37 → 03:1805:110 min05:10260 min19 Oct
Suva03:37 → 05:1805:360 min05:35251 min19 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
dyuta-pratipad@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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