Ruling · Mahānavamī · 2014

Friday 3 October

Determinatein Chattogram, under the Rashtriya Panchang method. Clear of every threshold by 32 minutes.

Decide it for

ChattogramDelhiKolkataSingaporeSydneyJersey City

22°20′ N 91°50′ E · Asia/Dhaka · GeoNames 1205733

The two middays

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

Midday of Thursday 2 October

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:18  12:06 madhyāhna ends
Navamī begins 12:38:04
10:3010:5411:1811:4212:0612:3012:54

0 of 48 minutes covered

Midday of Friday 3 October

Taken. Navamī reaches neither midday; the rule takes the second day.

madhyāhna begins 11:18  12:06 madhyāhna ends
10:3010:5411:1811:4212:0612:3012:54

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 12:38 on Thu 2 Oct to 10:28 on Fri 3 Oct.

    2014-10-02T06:38:05Z → 2014-10-03T04:28:26Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:18–12:06 on the 2nd, 11:18–12:06 on the 3rd.

    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 2nd and 0 of 48 on the 3rd.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: purvaviddha → second-day · margin 1926 s

  5. 05

    Ruling

    Mahānavamī, Chattogram, 2014: Friday 3 October.

    confidence: determinate

Say it like this

In Chattogram, Mahānavamī 2014 falls on Friday 3 October. Navamī runs from 12:38 on Thu 2 Oct to 10:28 on Fri 3 Oct, and reaches madhyāhna on neither day.

ahargana.org/chattogram/festivals/2014/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 3 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 3 Oct
compat-drikpanchangComparison profileThu 2 Oct
No institution has a recorded ruling for Chattogram.

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 2ndCoveredMadhyāhna 3rdCoveredRuled
Los Angeles23:38 → 21:2812:1848 min12:180 min2 Oct
Chicago01:38 → 23:2812:1648 min12:150 min2 Oct
Jersey City02:38 → 00:2812:2148 min12:210 min2 Oct
Port of Spain02:38 → 00:2811:3148 min11:310 min2 Oct
London07:38 → 05:2812:2548 min12:250 min2 Oct
Durban08:38 → 06:2811:2248 min11:210 min2 Oct
Dubai10:38 → 08:2811:4448 min11:440 min2 Oct
Delhi12:08 → 09:5811:4626 min11:460 min2 Oct
Kolkata12:08 → 09:5811:020 min11:020 min3 Oct
Singapore14:38 → 12:2812:300 min12:300 min3 Oct
Sydney16:38 → 14:2811:210 min11:2148 min3 Oct
Suva18:38 → 16:2811:320 min11:3248 min3 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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