Ruling · Dyūta Pratipad · 1922

Saturday 21 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 480 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 20 October

Pratipadā is absent from pūrvāhṇa. Not taken.

06:32 sunrisepūrvāhṇa ends 10:12
06:0806:5607:4408:3209:2010:08

0 of 221 minutes covered

Forenoon of Saturday 21 October

Taken. The only forenoon Pratipadā reaches.

06:33 sunrisepūrvāhṇa ends 10:13
06:0906:5707:4508:3309:2110:09

220 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 21:40 on Fri 20 Oct to 18:13 on Sat 21 Oct.

    1922-10-20T13:39:54Z → 1922-10-21T10:12:54Z

  2. 02

    Kāla

    Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:32–10:12 on the 20th, 06:33–10:13 on the 21st.

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

  3. 03

    Rule

    Pratipadā must be present during pūrvāhṇa. It covers 0 of 221 minutes on the 20th and 220 of 220 on the 21st.

    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 28812 s

  5. 05

    Ruling

    Dyūta Pratipad, Baoding, 1922: Saturday 21 October.

    confidence: determinate

Say it like this

In Baoding, Dyūta Pratipad 1922 falls on Saturday 21 October. Pratipadā runs from 21:40 on Fri 20 Oct to 18:13 on Sat 21 Oct and covers all of pūrvāhṇa that forenoon.

ahargana.org/baoding/festivals/1922/dyuta-pratipad · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 21 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 21 Oct
compat-drikpanchangComparison profileSat 21 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 20thCoveredSunrise 21stCoveredRuled
Los Angeles05:40 → 02:1306:02224 min06:030 min20 Oct
Chicago07:40 → 04:1306:08126 min06:090 min20 Oct
Jersey City08:40 → 05:1306:1372 min06:140 min20 Oct
Port of Spain09:40 → 06:1305:5613 min05:5617 min21 Oct
London13:40 → 10:1306:320 min06:34207 min21 Oct
Durban15:40 → 12:1305:140 min05:13259 min21 Oct
Dubai17:40 → 14:1306:190 min06:20229 min21 Oct
Delhi19:10 → 15:4306:250 min06:25227 min21 Oct
Kolkata19:10 → 15:4305:350 min05:35231 min21 Oct
Singapore20:40 → 17:1305:470 min05:47241 min21 Oct
Sydney23:40 → 20:1305:090 min05:08261 min21 Oct
Suva01:40 → 22:1305:350 min05:34251 min21 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

About Ahargaṇa