Ruling · Mahānavamī · 2075

Thursday 17 October

Determinatein Bucharest, under the Rashtriya Panchang method. Clear of every threshold by 54 minutes.

Decide it for

BucharestDelhiKolkataSingaporeSydneyJersey City

44°26′ N 26°06′ E · Europe/Bucharest · GeoNames 683506

The two middays

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

Midday of Thursday 17 October

Taken. The only midday Navamī reaches.

madhyāhna begins 12:37  13:25 madhyāhna ends
11:4912:1312:3713:0113:2513:4914:13

48 of 48 minutes covered

Midday of Friday 18 October

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:37  13:25 madhyāhna ends
11:4912:1312:3713:0113:2513:4914:13

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 11:42 on Thu 17 Oct to 09:45 on Fri 18 Oct.

    2075-10-17T08:42:29Z → 2075-10-18T06:45:10Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:37–13:25 on the 17th, 12:37–13:25 on the 18th.

    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 17th and 0 of 48 on the 18th.

    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 3256 s

  5. 05

    Ruling

    Mahānavamī, Bucharest, 2075: Thursday 17 October.

    confidence: determinate

Say it like this

In Bucharest, Mahānavamī 2075 falls on Thursday 17 October. Navamī runs from 11:42 on Thu 17 Oct to 09:45 on Fri 18 Oct and covers all of madhyāhna that midday.

ahargana.org/bucharest/festivals/2075/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 17 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 17 Oct
compat-drikpanchangComparison profileThu 17 Oct
No institution has a recorded ruling for Bucharest.

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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles01:42 → 23:4512:1448 min12:140 min17 Oct
Chicago03:42 → 01:4512:1248 min12:120 min17 Oct
Jersey City04:42 → 02:4512:1748 min12:170 min17 Oct
Port of Spain04:42 → 02:4511:2748 min11:270 min17 Oct
London09:42 → 07:4512:2248 min12:210 min17 Oct
Durban10:42 → 08:4511:1848 min11:170 min17 Oct
Dubai12:42 → 10:4511:400 min11:400 min18 Oct
Delhi14:12 → 12:1511:420 min11:4233 min18 Oct
Kolkata14:12 → 12:1510:580 min10:5848 min18 Oct
Singapore16:42 → 14:4512:260 min12:2648 min18 Oct
Sydney19:42 → 17:4512:170 min12:1748 min18 Oct
Suva20:42 → 18:4511:280 min11:2848 min18 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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