Durgā Navamī

1. १Step 1, Aṅga

   Navamī runs from 14:53 on Sat 8 Nov to 12:54 on Sun 9 Nov.

   1997-11-08T08:52:50Z → 1997-11-09T06:54:00Z
2. २Step 2, Kāla

   Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 8th, 12:00–12:48 on the 9th.

   madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
3. ३Step 3, Rule

   Navamī must be present during madhyāhna. It covers 0 of 48 minutes on the 8th and 48 of 48 on the 9th.

   Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104
4. ४Step 4, Tie-break

   Only one midday qualifies. No tie-break is needed.

   one day qualifies → only-day · margin 337 s
5. ५Step 5, Ruling

   Durgā Navamī, Colombo, 1997: Sunday 9 November.

   confidence: determinate

In Colombo, Durgā Navamī 1997 falls on Sunday 9 November. Navamī runs from 14:53 on Sat 8 Nov to 12:54 on Sun 9 Nov and covers all of madhyāhna that midday.

Institutional rulings are recorded with a source address, and are never edited to agree.

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.