Ruling · Mahānavamī · 1907

Tuesday 15 October

Determinatein Bucharest, under the Rashtriya Panchang method. Clear of every threshold by 514 minutes.

Decide it for

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 Monday 14 October

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:22  12:10 madhyāhna ends
10:3410:5811:2211:4612:1012:3412:58

0 of 48 minutes covered

Midday of Tuesday 15 October

Taken. The only midday Navamī reaches.

madhyāhna begins 11:21  12:09 madhyāhna ends
10:3310:5711:2111:4512:0912:3312:57

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 22:45 on Mon 14 Oct to 20:43 on Tue 15 Oct.

    1907-10-14T21:00:58Z → 1907-10-15T18:59:23Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:22–12:10 on the 14th, 11:21–12:09 on the 15th.

    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 14th and 48 of 48 on the 15th.

    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 30845 s

  5. 05

    Ruling

    Mahānavamī, Bucharest, 1907: Tuesday 15 October.

    confidence: determinate

Say it like this

In Bucharest, Mahānavamī 1907 falls on Tuesday 15 October. Navamī runs from 22:45 on Mon 14 Oct to 20:43 on Tue 15 Oct and covers all of madhyāhna that midday.

ahargana.org/bucharest/festivals/1907/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 15 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 15 Oct
compat-drikpanchangComparison profileTue 15 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles13:01 → 10:5911:150 min11:150 min15 Oct
Chicago15:01 → 12:5911:130 min11:1248 min15 Oct
Jersey City16:01 → 13:5911:180 min11:1848 min15 Oct
Port of Spain17:01 → 14:5911:280 min11:2848 min15 Oct
London21:01 → 18:5911:220 min11:2248 min15 Oct
Durban23:01 → 20:5911:180 min11:1848 min15 Oct
Dubai00:42 → 22:4011:220 min11:2248 min15 Oct
Delhi02:31 → 00:2911:430 min11:4348 min15 Oct
Kolkata02:31 → 00:2910:590 min10:5948 min15 Oct
Singapore04:01 → 01:5911:270 min11:2748 min15 Oct
Sydney07:01 → 04:5911:180 min11:1848 min15 Oct
Suva08:56 → 06:5411:240 min11:2448 min15 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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