Ruling · Durgā Navamī · 1989

Tuesday 7 November

Determinatein Melbourne, under the Rashtriya Panchang method. Clear of every threshold by 11 minutes.

Decide it for

MelbourneDelhiKolkataSingaporeSydneyJersey City

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

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Tuesday 7 November

Taken. The only midday Navamī reaches.

madhyāhna begins 12:40  13:28 madhyāhna ends
Navamī begins 12:51:29
11:5212:1612:4013:0413:2813:5214:16

37 of 48 minutes covered, the last 37

Midday of Wednesday 8 November

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:40  13:28 madhyāhna ends
11:5212:1612:4013:0413:2813:5214:16

0 of 48 minutes covered

Navamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Navamī runs from 12:51 on Tue 7 Nov to 11:40 on Wed 8 Nov.

    1989-11-07T01:51:30Z → 1989-11-08T00:39:41Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:40–13:28 on the 7th, 12:40–13:28 on the 8th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Navamī must be present during madhyāhna. It covers 37 of 48 minutes on the 7th and 0 of 48 on the 8th.

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

  4. 04

    Tie-break

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

    priority: purvaviddha → only-day · margin 682 s

  5. 05

    Ruling

    Durgā Navamī, Melbourne, 1989: Tuesday 7 November.

    confidence: determinate

Say it like this

In Melbourne, Durgā Navamī 1989 falls on Tuesday 7 November. Navamī runs from 12:51 on Tue 7 Nov to 11:40 on Wed 8 Nov and covers 37 of 48 minutes of madhyāhna that midday.

ahargana.org/melbourne/festivals/1989/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 7 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 7 Nov
compat-drikpanchangComparison profileTue 7 Nov
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/durga-navami · ruleset 2026.3-draft

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Navamī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 104

“S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceNavamīMadhyāhna 7thCoveredMadhyāhna 8thCoveredRuled
Los Angeles17:51 → 16:4011:1348 min11:130 min7 Nov
Chicago19:51 → 18:4011:1048 min11:100 min7 Nov
Jersey City20:51 → 19:4011:1648 min11:160 min7 Nov
Port of Spain21:51 → 20:4011:2648 min11:260 min7 Nov
London01:51 → 00:4011:2048 min11:200 min7 Nov
Durban03:51 → 02:4011:1648 min11:160 min7 Nov
Dubai05:51 → 04:4011:3848 min11:380 min7 Nov
Delhi07:21 → 06:1011:4148 min11:410 min7 Nov
Kolkata07:21 → 06:1010:5648 min10:560 min7 Nov
Singapore09:51 → 08:4012:2448 min12:240 min7 Nov
Sydney12:51 → 11:4012:1512 min12:150 min7 Nov
Suva13:51 → 12:4011:260 min11:2648 min8 Nov
Profile · tradition
pac-rp@2026.1 · smarta
Rule
durga-navami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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