Ruling · Jitāṣṭamī (Jitiya) · 1981

Sunday 20 September

Determinatein Melbourne, under the Rashtriya Panchang method. Clear of every threshold by 33 minutes.

Decide it for

MelbourneDelhiKolkataSingaporeSydneyJersey City

37°49′ S 144°58′ E · Australia/Melbourne · GeoNames 2158177

The two evenings

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

Evening of Sunday 20 September

Taken. The only evening Aṣṭamī reaches.

18:14 sunsetpradoṣa ends 19:50
Aṣṭamī begins 18:47:02
17:5018:1418:3819:0219:2619:5020:14

63 of 96 minutes covered, the last 63

Evening of Monday 21 September

Aṣṭamī is absent from pradoṣa. Not taken.

18:15 sunsetpradoṣa ends 19:50
17:5118:1518:3919:0319:2719:5120:15

0 of 95 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 18:47 on Sun 20 Sep to 16:53 on Mon 21 Sep.

    1981-09-20T08:47:02Z → 1981-09-21T06:53:14Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:14–19:50 on the 20th, 18:15–19:50 on the 21st.

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

  3. 03

    Rule

    Aṣṭamī must be present during pradoṣa. It covers 63 of 96 minutes on the 20th and 0 of 95 on the 21st.

    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 1971 s

  5. 05

    Ruling

    Jitāṣṭamī, Melbourne, 1981: Sunday 20 September.

    confidence: determinate

Say it like this

In Melbourne, Jitāṣṭamī (Jitiya) 1981 falls on Sunday 20 September. Aṣṭamī runs from 18:47 on Sun 20 Sep to 16:53 on Mon 21 Sep and covers 63 of 96 minutes of pradoṣa that evening.

ahargana.org/melbourne/festivals/1981/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 20 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 20 Sep
compat-drikpanchangComparison profileSun 20 Sep
No institution has a recorded ruling for Melbourne.

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 20thCoveredSunset 21stCoveredRuled
Los Angeles01:47 → 23:5318:5294 min18:510 min20 Sep
Chicago03:47 → 01:5318:5194 min18:490 min20 Sep
Jersey City04:47 → 02:5318:5794 min18:550 min20 Sep
Port of Spain04:47 → 02:5318:0395 min18:030 min20 Sep
London09:47 → 07:5319:0394 min19:010 min20 Sep
Durban10:47 → 08:5317:5196 min17:510 min20 Sep
Dubai12:47 → 10:5318:1795 min18:160 min20 Sep
Delhi14:17 → 12:2318:2094 min18:190 min20 Sep
Kolkata14:17 → 12:2317:3595 min17:340 min20 Sep
Singapore16:17 → 14:2318:3195 min18:310 min20 Sep
Sydney18:47 → 16:5317:4938 min17:500 min20 Sep
Suva20:47 → 18:5318:020 min18:0251 min21 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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