Ruling · Durgā Navamī · 1969

Tuesday 18 November

Determinatein Melbourne, under the Rashtriya Panchang method. Clear of every threshold by 16 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 Monday 17 November

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:41  12:29 madhyāhna ends
Navamī begins 12:53:08
10:5311:1711:4112:0512:2912:5313:17

0 of 48 minutes covered

Midday of Tuesday 18 November

Taken. Navamī reaches neither midday; the rule takes the second day.

madhyāhna begins 11:42  12:30 madhyāhna ends
Navamī ends 11:25:06
10:5411:1811:4212:0612:3012:5413:18

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 12:53 on Mon 17 Nov to 11:25 on Tue 18 Nov.

    1969-11-17T02:53:08Z → 1969-11-18T01:25:06Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 17th, 11:42–12:30 on the 18th.

    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 17th and 0 of 48 on the 18th.

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

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: purvaviddha → second-day · margin 986 s

  5. 05

    Ruling

    Durgā Navamī, Melbourne, 1969: Tuesday 18 November.

    confidence: determinate

Say it like this

In Melbourne, Durgā Navamī 1969 falls on Tuesday 18 November. Navamī runs from 12:53 on Mon 17 Nov to 11:25 on Tue 18 Nov, and reaches madhyāhna on neither day.

ahargana.org/melbourne/festivals/1969/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 18 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 18 Nov
compat-drikpanchangComparison profileMon 17 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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles18:53 → 17:2511:1448 min11:140 min17 Nov
Chicago20:53 → 19:2511:1148 min11:120 min17 Nov
Jersey City21:53 → 20:2511:1748 min11:170 min17 Nov
Port of Spain22:53 → 21:2511:2748 min11:270 min17 Nov
London03:53 → 02:2512:2148 min12:210 min17 Nov
Durban04:53 → 03:2511:1748 min11:170 min17 Nov
Dubai06:53 → 05:2511:4048 min11:400 min17 Nov
Delhi08:23 → 06:5511:4248 min11:420 min17 Nov
Kolkata08:23 → 06:5510:5748 min10:580 min17 Nov
Singapore10:23 → 08:5511:5648 min11:560 min17 Nov
Sydney12:53 → 11:2511:160 min11:179 min18 Nov
Suva14:53 → 13:2511:270 min11:2848 min18 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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