Ruling · Mahānavamī · 2041

Friday 4 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 550 minutes.

Decide it for

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

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

Midday of Thursday 3 October

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:05  11:53 madhyāhna ends
10:1710:4111:0511:2911:5312:1712:41

0 of 48 minutes covered

Midday of Friday 4 October

Taken. The only midday Navamī reaches.

madhyāhna begins 11:04  11:52 madhyāhna ends
10:1610:4011:0411:2811:5212:1612:40

48 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Navamī runs from 22:52 on Thu 3 Oct to 21:03 on Fri 4 Oct.

    2041-10-03T14:52:15Z → 2041-10-04T13:02:46Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:05–11:53 on the 3rd, 11:04–11:52 on the 4th.

    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 3rd and 48 of 48 on the 4th.

    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 33025 s

  5. 05

    Ruling

    Mahānavamī, Daqing, 2041: Friday 4 October.

    confidence: determinate

Say it like this

In Daqing, Mahānavamī 2041 falls on Friday 4 October. Navamī runs from 22:52 on Thu 3 Oct to 21:03 on Fri 4 Oct and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2041/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 4 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 4 Oct
compat-drikpanchangComparison profileFri 4 Oct
No institution has a recorded ruling for Daqing.

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

The rule, as data

/rules/mahanavami · ruleset 2026.3-draft

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.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceNavamīMadhyāhna 3rdCoveredMadhyāhna 4thCoveredRuled
Los Angeles07:52 → 06:0312:1848 min12:170 min3 Oct
Chicago09:52 → 08:0312:1548 min12:150 min3 Oct
Jersey City10:52 → 09:0312:2148 min12:210 min3 Oct
Port of Spain10:52 → 09:0311:3148 min11:310 min3 Oct
London15:52 → 14:0312:250 min12:2548 min4 Oct
Durban16:52 → 15:0311:210 min11:2148 min4 Oct
Dubai18:52 → 17:0311:440 min11:4348 min4 Oct
Delhi20:22 → 18:3311:460 min11:4648 min4 Oct
Kolkata20:22 → 18:3311:010 min11:0148 min4 Oct
Singapore22:52 → 21:0312:300 min12:2948 min4 Oct
Sydney00:52 → 23:0311:210 min11:2048 min4 Oct
Suva02:52 → 01:0311:320 min11:3148 min4 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
mahanavami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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