Ruling · Jitāṣṭamī (Jitiya) · 1918

Friday 27 September

Determinatein Perth, under the Rashtriya Panchang method. Clear of every threshold by 280 minutes.

Decide it for

PerthDelhiKolkataSingaporeSydneyJersey City

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

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Thursday 26 September

Aṣṭamī is absent from pradoṣa. Not taken.

18:14 sunsetpradoṣa ends 19:49
17:5018:1418:3819:0219:2619:5020:14

0 of 94 minutes covered

Evening of Friday 27 September

Taken. The only evening Aṣṭamī reaches.

18:15 sunsetpradoṣa ends 19:49
17:5118:1518:3919:0319:2719:5120:15

94 of 94 minutes covered

Aṣṭamī presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 00:59 on Fri 27 Sep to 00:29 on Sat 28 Sep.

    1918-09-26T16:58:45Z → 1918-09-27T16:28:32Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:14–19:49 on the 26th, 18:15–19:49 on the 27th.

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

  3. 03

    Rule

    Aṣṭamī must be present during pradoṣa. It covers 0 of 94 minutes on the 26th and 94 of 94 on the 27th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

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

    priority: unstated → only-day · margin 16775 s

  5. 05

    Ruling

    Jitāṣṭamī, Perth, 1918: Friday 27 September.

    confidence: determinate

Say it like this

In Perth, Jitāṣṭamī (Jitiya) 1918 falls on Friday 27 September. Aṣṭamī runs from 00:59 on Fri 27 Sep to 00:29 on Sat 28 Sep and covers all of pradoṣa that evening.

ahargana.org/perth/festivals/1918/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 27 Sep
Ahargaṇa, classicalDisc centre, no refractionFri 27 Sep
compat-drikpanchangComparison profileFri 27 Sep
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/jitashtami · ruleset 2026.3-draft

Month
Bhādrapada, amānta
Pakṣa · aṅga
Kṛṣṇa · Aṣṭamī
Kāla
Pradoṣa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 103

“K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAṣṭamīSunset 26thCoveredSunset 27thCoveredRuled
Los Angeles09:59 → 09:2918:4596 min18:430 min26 Sep
Chicago11:59 → 11:2918:4296 min18:400 min26 Sep
Jersey City12:59 → 12:2918:4896 min18:460 min26 Sep
Port of Spain12:59 → 12:2918:0095 min17:590 min26 Sep
London17:59 → 17:2918:5196 min18:490 min26 Sep
Durban18:59 → 18:2917:5329 min17:5434 min27 Sep
Dubai20:40 → 20:1017:530 min17:5296 min27 Sep
Delhi22:29 → 21:5918:140 min18:1396 min27 Sep
Kolkata22:29 → 21:5917:300 min17:2996 min27 Sep
Singapore23:59 → 23:2917:590 min17:5995 min27 Sep
Sydney02:59 → 02:2917:530 min17:5494 min27 Sep
Suva04:59 → 04:2918:020 min18:0395 min27 Sep
Profile · tradition
pac-rp@2026.1 · smarta
Rule
jitashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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