Ruling · Durgā Navamī · 1934

Thursday 15 November

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 185 minutes.

Decide it for

TehranDelhiKolkataSingaporeSydneyJersey City

35°42′ N 51°25′ E · Asia/Tehran · GeoNames 112931

The two middays

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

Midday of Wednesday 14 November

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:20  12:08 madhyāhna ends
10:3210:5611:2011:4412:0812:3212:56

0 of 48 minutes covered

Midday of Thursday 15 November

Taken. The only midday Navamī reaches.

madhyāhna begins 11:20  12:08 madhyāhna ends
10:3210:5611:2011:4412:0812:3212:56

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 17:06 on Wed 14 Nov to 15:12 on Thu 15 Nov.

    1934-11-14T13:40:42Z → 1934-11-15T11:47:13Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:20–12:08 on the 14th, 11:20–12:08 on the 15th.

    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 14th and 48 of 48 on the 15th.

    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 11071 s

  5. 05

    Ruling

    Durgā Navamī, Tehran, 1934: Thursday 15 November.

    confidence: determinate

Say it like this

In Tehran, Durgā Navamī 1934 falls on Thursday 15 November. Navamī runs from 17:06 on Wed 14 Nov to 15:12 on Thu 15 Nov and covers all of madhyāhna that midday.

ahargana.org/tehran/festivals/1934/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 15 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 15 Nov
compat-drikpanchangComparison profileThu 15 Nov
No institution has a recorded ruling for Tehran.

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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles05:41 → 03:4711:1348 min11:130 min14 Nov
Chicago07:41 → 05:4711:1148 min11:110 min14 Nov
Jersey City08:41 → 06:4711:1748 min11:170 min14 Nov
Port of Spain09:41 → 07:4711:2648 min11:270 min14 Nov
London13:41 → 11:4711:210 min11:2126 min15 Nov
Durban15:41 → 13:4711:170 min11:1748 min15 Nov
Dubai17:41 → 15:4711:390 min11:3948 min15 Nov
Delhi19:11 → 17:1711:410 min11:4148 min15 Nov
Kolkata19:11 → 17:1710:570 min10:5748 min15 Nov
Singapore21:01 → 19:0711:450 min11:4548 min15 Nov
Sydney23:41 → 21:4711:160 min11:1648 min15 Nov
Suva01:41 → 23:4711:270 min11:2748 min15 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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