Ruling · Dyūta Pratipad · 1908

Monday 26 October

Determinatein Perth, under the Rashtriya Panchang method. Clear of every threshold by 297 minutes.

Decide it for

31°57′ S 115°52′ E · Australia/Perth · GeoNames 2063523

The two forenoons

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

Forenoon of Sunday 25 October

Pratipadā is absent from pūrvāhṇa. Not taken.

05:27 sunrisepūrvāhṇa ends 09:50
05:0305:5106:3907:2708:1509:0309:51

0 of 263 minutes covered

Forenoon of Monday 26 October

Taken. The only forenoon Pratipadā reaches.

05:26 sunrisepūrvāhṇa ends 09:49
05:0205:5006:3807:2608:1409:0209:50

263 of 263 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 14:46 on Sun 25 Oct to 15:22 on Mon 26 Oct.

    1908-10-25T06:46:19Z → 1908-10-26T07:22:10Z

  2. 02

    Kāla

    Pūrvāhṇa is first 5 of 15 day muhūrtas: 05:27–09:50 on the 25th, 05:26–09:49 on the 26th.

    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 263 minutes on the 25th and 263 of 263 on the 26th.

    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 17800 s

  5. 05

    Ruling

    Dyūta Pratipad, Perth, 1908: Monday 26 October.

    confidence: determinate

Say it like this

In Perth, Dyūta Pratipad 1908 falls on Monday 26 October. Pratipadā runs from 14:46 on Sun 25 Oct to 15:22 on Mon 26 Oct and covers all of pūrvāhṇa that forenoon.

ahargana.org/perth/festivals/1908/dyuta-pratipad · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 26 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 26 Oct
compat-drikpanchangComparison profileMon 26 Oct
No institution has a recorded ruling for Perth.

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 25thCoveredSunrise 26thCoveredRuled
Los Angeles22:46 → 23:2206:07220 min06:070 min25 Oct
Chicago00:46 → 01:2206:15213 min06:160 min25 Oct
Jersey City01:46 → 02:2206:19214 min06:200 min25 Oct
Port of Spain02:46 → 03:2205:56236 min05:560 min25 Oct
London06:46 → 07:2206:41197 min06:4339 min25 Oct
Durban08:46 → 09:2205:0943 min05:08255 min26 Oct
Dubai10:27 → 11:0306:030 min06:04227 min26 Oct
Delhi12:16 → 12:5206:280 min06:29224 min26 Oct
Kolkata12:16 → 12:5205:370 min05:38228 min26 Oct
Singapore13:46 → 14:2205:470 min05:47241 min26 Oct
Sydney16:46 → 17:2205:030 min05:02265 min26 Oct
Suva18:41 → 19:1705:270 min05:26253 min26 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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