Ruling · Durgā Navamī · 1935

Tuesday 5 November

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 22 minutes.

Decide it for

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 Monday 4 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 Tuesday 5 November

Taken. The only midday Navamī reaches.

madhyāhna begins 11:24  12:12 madhyāhna ends
Navamī ends 11:49:23
10:3611:0011:2411:4812:1212:3613:00

26 of 48 minutes covered, the first 26

Navamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Navamī runs from 13:52 on Mon 4 Nov to 11:49 on Tue 5 Nov.

    1935-11-04T10:21:34Z → 1935-11-05T08:19:24Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:24–12:12 on the 4th, 11:24–12:12 on the 5th.

    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 4th and 26 of 48 on the 5th.

    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 1341 s

  5. 05

    Ruling

    Durgā Navamī, Tehran, 1935: Tuesday 5 November.

    confidence: determinate

Say it like this

In Tehran, Durgā Navamī 1935 falls on Tuesday 5 November. Navamī runs from 13:52 on Mon 4 Nov to 11:49 on Tue 5 Nov and covers 26 of 48 minutes of madhyāhna that midday.

ahargana.org/tehran/festivals/1935/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 5 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 5 Nov
compat-drikpanchangComparison profileTue 5 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 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles02:22 → 00:1911:1248 min11:120 min4 Nov
Chicago04:22 → 02:1911:1048 min11:100 min4 Nov
Jersey City05:22 → 03:1911:1648 min11:160 min4 Nov
Port of Spain06:22 → 04:1911:2648 min11:260 min4 Nov
London10:22 → 08:1911:2048 min11:200 min4 Nov
Durban12:22 → 10:1911:160 min11:160 min5 Nov
Dubai14:22 → 12:1911:380 min11:3841 min5 Nov
Delhi15:52 → 13:4911:410 min11:4148 min5 Nov
Kolkata15:52 → 13:4910:560 min10:5648 min5 Nov
Singapore17:42 → 15:3911:440 min11:4448 min5 Nov
Sydney20:22 → 18:1911:150 min11:1548 min5 Nov
Suva22:22 → 20:1911:260 min11:2648 min5 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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