Ruling · Durgā Navamī · 2045

Saturday 18 November

Determinatein Shaoxing, under the Rashtriya Panchang method. Clear of every threshold by 41 minutes.

Decide it for

ShaoxingDelhiKolkataSingaporeSydneyJersey City

30°00′ N 120°35′ E · Asia/Shanghai · GeoNames 1795855

The two middays

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

Midday of Friday 17 November

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:19  12:07 madhyāhna ends
Navamī begins 12:47:07
10:3110:5511:1911:4312:0712:3112:55

0 of 48 minutes covered

Midday of Saturday 18 November

Taken. The only midday Navamī reaches.

madhyāhna begins 11:19  12:07 madhyāhna ends
10:3110:5511:1911:4312:0712:3112:55

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 12:47 on Fri 17 Nov to 15:24 on Sat 18 Nov.

    2045-11-17T04:47:07Z → 2045-11-18T07:23:44Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:19–12:07 on the 17th, 11:19–12:07 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 48 of 48 on the 18th.

    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 2436 s

  5. 05

    Ruling

    Durgā Navamī, Shaoxing, 2045: Saturday 18 November.

    confidence: determinate

Say it like this

In Shaoxing, Durgā Navamī 2045 falls on Saturday 18 November. Navamī runs from 12:47 on Fri 17 Nov to 15:24 on Sat 18 Nov and covers all of madhyāhna that midday.

ahargana.org/shaoxing/festivals/2045/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 18 Nov
Ahargaṇa, classicalDisc centre, no refractionSat 18 Nov
compat-drikpanchangComparison profileSat 18 Nov
No institution has a recorded ruling for Shaoxing.

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 Angeles20:47 → 23:2411:1448 min11:140 min17 Nov
Chicago22:47 → 01:2411:1148 min11:120 min17 Nov
Jersey City23:47 → 02:2411:1748 min11:170 min17 Nov
Port of Spain00:47 → 03:2411:2748 min11:270 min17 Nov
London04:47 → 07:2411:2148 min11:210 min17 Nov
Durban06:47 → 09:2411:1748 min11:170 min17 Nov
Dubai08:47 → 11:2411:4048 min11:400 min17 Nov
Delhi10:17 → 12:5411:4248 min11:4248 min17 Nov
Kolkata10:17 → 12:5410:5748 min10:5848 min17 Nov
Singapore12:47 → 15:2412:2626 min12:2648 min17 Nov
Sydney15:47 → 18:2412:160 min12:1748 min18 Nov
Suva16:47 → 19:2411:270 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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