Ruling · Durgā Navamī · 2011

Friday 4 November

Determinatein Melbourne, under the Rashtriya Panchang method. Clear of every threshold by 153 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 Thursday 3 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

Midday of Friday 4 November

Taken. The only midday Navamī reaches.

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

48 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 16:01 on Thu 3 Nov to 17:17 on Fri 4 Nov.

    2011-11-03T05:01:11Z → 2011-11-04T06:16:35Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:40–13:28 on the 3rd, 12:40–13:28 on the 4th.

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

  3. 03

    Rule

    Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.

    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 9190 s

  5. 05

    Ruling

    Durgā Navamī, Melbourne, 2011: Friday 4 November.

    confidence: determinate

Say it like this

In Melbourne, Durgā Navamī 2011 falls on Friday 4 November. Navamī runs from 16:01 on Thu 3 Nov to 17:17 on Fri 4 Nov and covers all of madhyāhna that midday.

ahargana.org/melbourne/festivals/2011/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 4 Nov
Ahargaṇa, classicalDisc centre, no refractionFri 4 Nov
compat-drikpanchangComparison profileFri 4 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 3rdCoveredMadhyāhna 4thCoveredRuled
Los Angeles22:01 → 23:1712:1248 min12:120 min3 Nov
Chicago00:01 → 01:1712:1048 min12:100 min3 Nov
Jersey City01:01 → 02:1712:1648 min12:160 min3 Nov
Port of Spain01:01 → 02:1711:2648 min11:260 min3 Nov
London05:01 → 06:1711:2048 min11:200 min3 Nov
Durban07:01 → 08:1711:1648 min11:160 min3 Nov
Dubai09:01 → 10:1711:3848 min11:380 min3 Nov
Delhi10:31 → 11:4711:4048 min11:406 min3 Nov
Kolkata10:31 → 11:4710:5648 min10:5648 min3 Nov
Singapore13:01 → 14:1712:2411 min12:2448 min3 Nov
Sydney16:01 → 17:1712:150 min12:1548 min4 Nov
Suva18:01 → 19:1712:260 min12:2648 min4 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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