Ruling · Durgā Navamī · 1967

Thursday 9 November

Determinatein Recife, under the Rashtriya Panchang method. Clear of every threshold by 5 min 35 s.

Decide it for

8°03′ S 34°53′ W · America/Recife · GeoNames 3390760

The two middays

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

Midday of Thursday 9 November

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 11:39  12:27 madhyāhna ends
Navamī begins 11:15:49
10:5111:1511:3912:0312:2712:5113:15

48 of 48 minutes covered

Midday of Friday 10 November

Qualifies with 42 of 48 minutes. Not taken.

madhyāhna begins 11:39  12:27 madhyāhna ends
Navamī ends 12:21:54
10:5111:1511:3912:0312:2712:5113:15

42 of 48 minutes covered, the first 42

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

How it was decided

  1. 01

    Aṅga

    Navamī runs from 11:16 on Thu 9 Nov to 12:22 on Fri 10 Nov.

    1967-11-09T13:15:50Z → 1967-11-10T14:21:54Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 9th, 11:39–12:27 on the 10th.

    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 9th and 42 of 48 on the 10th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 335 s

  5. 05

    Ruling

    Durgā Navamī, Recife, 1967: Thursday 9 November.

    confidence: determinate

Say it like this

In Recife, Durgā Navamī 1967 falls on Thursday 9 November. Navamī runs from 11:16 on Thu 9 Nov to 12:22 on Fri 10 Nov and covers all of madhyāhna that midday. It also reaches the next midday for 42 minutes; by the rule the first midday is taken.

ahargana.org/recife/festivals/1967/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 9 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 9 Nov
compat-drikpanchangComparison profileThu 9 Nov
No institution has a recorded ruling for Recife.

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 9thCoveredMadhyāhna 10thCoveredRuled
Los Angeles05:16 → 06:2211:1348 min11:130 min9 Nov
Chicago07:16 → 08:2211:1048 min11:100 min9 Nov
Jersey City08:16 → 09:2211:1648 min11:160 min9 Nov
Port of Spain09:16 → 10:2211:2648 min11:260 min9 Nov
London13:16 → 14:2211:200 min11:2048 min10 Nov
Durban15:16 → 16:2211:160 min11:1648 min10 Nov
Dubai17:16 → 18:2211:380 min11:3948 min10 Nov
Delhi18:46 → 19:5211:410 min11:4148 min10 Nov
Kolkata18:46 → 19:5210:560 min10:5648 min10 Nov
Singapore20:46 → 21:5211:540 min11:5448 min10 Nov
Sydney23:16 → 00:2211:150 min11:1548 min10 Nov
Suva01:16 → 02:2211:260 min11:2648 min10 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