Ruling · Durgā Navamī · 1945

Wednesday 14 November

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 80 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 Tuesday 13 November

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:24  12:12 madhyāhna ends
10:3611:0011:2411:4812:1212:3613:00

0 of 48 minutes covered

Midday of Wednesday 14 November

Taken. The only midday Navamī reaches.

madhyāhna begins 11:25  12:13 madhyāhna ends
10:3711:0111:2511:4912:1312:3713:01

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 14:45 on Tue 13 Nov to 13:33 on Wed 14 Nov.

    1945-11-13T11:15:28Z → 1945-11-14T10:02:45Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:24–12:12 on the 13th, 11:25–12:13 on the 14th.

    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 13th and 48 of 48 on the 14th.

    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 4809 s

  5. 05

    Ruling

    Durgā Navamī, Tehran, 1945: Wednesday 14 November.

    confidence: determinate

Say it like this

In Tehran, Durgā Navamī 1945 falls on Wednesday 14 November. Navamī runs from 14:45 on Tue 13 Nov to 13:33 on Wed 14 Nov and covers all of madhyāhna that midday.

ahargana.org/tehran/festivals/1945/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 14 Nov
Ahargaṇa, classicalDisc centre, no refractionWed 14 Nov
compat-drikpanchangComparison profileWed 14 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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles03:15 → 02:0311:1348 min11:130 min13 Nov
Chicago05:15 → 04:0311:1148 min11:110 min13 Nov
Jersey City06:15 → 05:0311:1648 min11:170 min13 Nov
Port of Spain07:15 → 06:0311:2648 min11:270 min13 Nov
London11:15 → 10:0311:2148 min11:210 min13 Nov
Durban13:15 → 12:0311:160 min11:1746 min14 Nov
Dubai15:15 → 14:0311:390 min11:3948 min14 Nov
Delhi16:45 → 15:3311:410 min11:4148 min14 Nov
Kolkata16:45 → 15:3310:570 min10:5748 min14 Nov
Singapore18:45 → 17:3311:550 min11:5548 min14 Nov
Sydney21:15 → 20:0311:160 min11:1648 min14 Nov
Suva23:15 → 22:0311:270 min11:2748 min14 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

About Ahargaṇa