Ruling · Durgā Navamī · 1942

Monday 16 November

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 524 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

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

Midday of Monday 16 November

Taken. The only midday Navamī reaches.

madhyāhna begins 12:00  12:48 madhyāhna ends
11:1211:3612:0012:2412:4813:1213:36

48 of 48 minutes covered

Midday of Tuesday 17 November

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:01  12:49 madhyāhna ends
11:1311:3712:0112:2512:4913:1313:37

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 03:17 on Mon 16 Nov to 02:19 on Tue 17 Nov.

    1942-11-15T18:16:41Z → 1942-11-16T17:18:55Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 16th, 12:01–12:49 on the 17th.

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

  3. 03

    Rule

    Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 16th and 0 of 48 on the 17th.

    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 31426 s

  5. 05

    Ruling

    Durgā Navamī, Daqing, 1942: Monday 16 November.

    confidence: determinate

Say it like this

In Daqing, Durgā Navamī 1942 falls on Monday 16 November. Navamī runs from 03:17 on Mon 16 Nov to 02:19 on Tue 17 Nov and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1942/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 16 Nov
Ahargaṇa, classicalDisc centre, no refractionMon 16 Nov
compat-drikpanchangComparison profileMon 16 Nov
No institution has a recorded ruling for Daqing.

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 15thCoveredMadhyāhna 16thCoveredRuled
Los Angeles11:17 → 10:1912:1348 min12:140 min15 Nov
Chicago13:17 → 12:1912:110 min12:118 min16 Nov
Jersey City14:17 → 13:1912:170 min12:1748 min16 Nov
Port of Spain15:17 → 14:1912:270 min12:2748 min16 Nov
London19:17 → 18:1912:210 min12:2148 min16 Nov
Durban21:17 → 20:1912:170 min12:1748 min16 Nov
Dubai22:17 → 21:1911:390 min11:3948 min16 Nov
Delhi00:47 → 23:4912:410 min12:4248 min16 Nov
Kolkata00:47 → 23:4911:570 min11:5748 min16 Nov
Singapore03:17 → 02:1913:250 min13:2548 min16 Nov
Sydney05:17 → 04:1912:160 min12:1648 min16 Nov
Suva06:17 → 05:1911:270 min11:2748 min16 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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