Mahānavamī

1. १Step 1, Aṅga

   Navamī runs from 20:40 on Fri 17 Oct to 19:50 on Sat 18 Oct.

   1980-10-17T15:39:41Z → 1980-10-18T14:50:18Z
2. २Step 2, Kāla

   Madhyāhna is 1 ghaṭikā either side of midday: 11:35–12:23 on the 17th, 11:35–12:23 on the 18th.

   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 17th and 48 of 48 on the 18th.

   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.

   priority: purvaviddha → only-day · margin 26835 s
5. ५Step 5, Ruling

   Mahānavamī, Multan, 1980: Saturday 18 October.

   confidence: determinate

In Multan, Mahānavamī 1980 falls on Saturday 18 October. Navamī runs from 20:40 on Fri 17 Oct to 19:50 on Sat 18 Oct and covers all of madhyāhna that midday.

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

Month

Āśvina, amānta

Pakṣa · aṅga

Śukla · Navamī

Kāla

Madhyāhna

Priority

Pūrvaviddhā

Tie-break

First day

Reference

CRC 1955, p. 104

S 9 Mahanavami (purvaviddha) (In Bengal it is observed as paraviddha covering one muhurta from sunrise). Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.