Ruling · Mahānavamī · 1944

Tuesday 26 September

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 195 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

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 Tuesday 26 September

Taken. The only midday Navamī reaches.

madhyāhna begins 12:07  12:55 madhyāhna ends
11:1911:4312:0712:3112:5513:1913:43

48 of 48 minutes covered

Midday of Wednesday 27 September

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:07  12:55 madhyāhna ends
11:1911:4312:0712:3112:5513:1913:43

0 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 08:52 on Tue 26 Sep to 07:49 on Wed 27 Sep.

    1944-09-25T23:52:04Z → 1944-09-26T22:49:02Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 26th, 12:07–12:55 on the 27th.

    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 26th and 0 of 48 on the 27th.

    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 11699 s

  5. 05

    Ruling

    Mahānavamī, Daqing, 1944: Tuesday 26 September.

    confidence: determinate

Say it like this

In Daqing, Mahānavamī 1944 falls on Tuesday 26 September. Navamī runs from 08:52 on Tue 26 Sep to 07:49 on Wed 27 Sep and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1944/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 26 Sep
Ahargaṇa, classicalDisc centre, no refractionTue 26 Sep
compat-drikpanchangComparison profileTue 26 Sep
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 25thCoveredMadhyāhna 26thCoveredRuled
Los Angeles16:52 → 15:4912:200 min12:2048 min26 Sep
Chicago18:52 → 17:4912:180 min12:1848 min26 Sep
Jersey City19:52 → 18:4912:240 min12:2348 min26 Sep
Port of Spain20:52 → 19:4912:340 min12:3348 min26 Sep
London00:52 → 23:4912:280 min12:2748 min26 Sep
Durban01:52 → 00:4911:240 min11:2348 min26 Sep
Dubai03:52 → 02:4911:460 min11:4648 min26 Sep
Delhi06:22 → 05:1912:490 min12:4848 min26 Sep
Kolkata06:22 → 05:1912:040 min12:0448 min26 Sep
Singapore08:52 → 07:4913:320 min13:3248 min26 Sep
Sydney09:52 → 08:4911:230 min11:2348 min26 Sep
Suva11:52 → 10:4911:340 min11:3430 min26 Sep
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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