Ruling · Mahānavamī · 2079

Wednesday 4 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 594 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two middays

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

Midday of Wednesday 4 October

Taken. The only midday Navamī reaches.

madhyāhna begins 11:43  12:31 madhyāhna ends
10:5511:1911:4312:0712:3112:5513:19

48 of 48 minutes covered

Midday of Thursday 5 October

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:43  12:31 madhyāhna ends
10:5511:1911:4312:0712:3112:5513:19

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 23:46 on Tue 3 Oct to 01:49 on Thu 5 Oct.

    2079-10-03T15:45:51Z → 2079-10-04T17:48:33Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 4th, 11:43–12:31 on the 5th.

    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 4th and 0 of 48 on the 5th.

    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 35639 s

  5. 05

    Ruling

    Mahānavamī, Baoding, 2079: Wednesday 4 October.

    confidence: determinate

Say it like this

In Baoding, Mahānavamī 2079 falls on Wednesday 4 October. Navamī runs from 23:46 on Tue 3 Oct to 01:49 on Thu 5 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2079/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 4 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 4 Oct
compat-drikpanchangComparison profileWed 4 Oct
No institution has a recorded ruling for Baoding.

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 Angeles08:46 → 10:4912:1848 min12:180 min3 Oct
Chicago10:46 → 12:4912:1548 min12:1533 min3 Oct
Jersey City11:46 → 13:4912:2148 min12:2148 min3 Oct
Port of Spain11:46 → 13:4911:3133 min11:3148 min3 Oct
London16:46 → 18:4912:250 min12:2548 min4 Oct
Durban17:46 → 19:4911:210 min11:2148 min4 Oct
Dubai19:46 → 21:4911:440 min11:4448 min4 Oct
Delhi21:16 → 23:1911:460 min11:4648 min4 Oct
Kolkata21:16 → 23:1911:020 min11:0148 min4 Oct
Singapore23:46 → 01:4912:300 min12:3048 min4 Oct
Sydney02:46 → 04:4912:210 min12:2048 min4 Oct
Suva03:46 → 05:4911:320 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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