Durgā Navamī

1. १Step 1, Aṅga

   Navamī runs from 10:50 on Thu 13 Nov to 08:40 on Fri 14 Nov.

   2059-11-13T07:49:31Z → 2059-11-14T05:39:57Z
2. २Step 2, Kāla

   Madhyāhna is 1 ghaṭikā either side of midday: 10:54–11:42 on the 13th, 10:54–11:42 on the 14th.

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

   Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 13th and 0 of 48 on the 14th.

   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 272 s < 300 s
5. ५Step 5, Ruling

   Durgā Navamī, Doha, 2059: Thursday 13 November.

   confidence: boundary (margin)

In Doha, Durgā Navamī 2059 falls on Thursday 13 November. Navamī runs from 10:50 on Thu 13 Nov to 08:40 on Fri 14 Nov and covers all of madhyāhna that midday. It is 4 min 32 s from a threshold. The rule does not settle this date cleanly.

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.