Ruling · Mahānavamī · 1926

Friday 15 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 114 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 Friday 15 October

Taken. The only midday Navamī reaches.

madhyāhna begins 11:40  12:28 madhyāhna ends
10:5211:1611:4012:0412:2812:5213:16

48 of 48 minutes covered

Midday of Saturday 16 October

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:40  12:28 madhyāhna ends
10:5211:1611:4012:0412:2812:5213:16

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 09:46 on Fri 15 Oct to 07:56 on Sat 16 Oct.

    1926-10-15T01:45:34Z → 1926-10-15T23:55:39Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 15th, 11:40–12:28 on the 16th.

    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 15th and 0 of 48 on the 16th.

    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 6860 s

  5. 05

    Ruling

    Mahānavamī, Baoding, 1926: Friday 15 October.

    confidence: determinate

Say it like this

In Baoding, Mahānavamī 1926 falls on Friday 15 October. Navamī runs from 09:46 on Fri 15 Oct to 07:56 on Sat 16 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1926/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 15 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 15 Oct
compat-drikpanchangComparison profileFri 15 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 15thCoveredMadhyāhna 16thCoveredRuled
Los Angeles17:46 → 15:5611:1548 min11:140 min15 Oct
Chicago19:46 → 17:5611:1248 min11:120 min15 Oct
Jersey City20:46 → 18:5611:1848 min11:180 min15 Oct
Port of Spain21:46 → 19:5611:2848 min11:280 min15 Oct
London01:46 → 23:5611:2248 min11:220 min15 Oct
Durban03:46 → 01:5611:1848 min11:180 min15 Oct
Dubai05:46 → 03:5611:4148 min11:400 min15 Oct
Delhi07:16 → 05:2611:4348 min11:430 min15 Oct
Kolkata07:16 → 05:2610:5848 min10:580 min15 Oct
Singapore08:46 → 06:5611:2748 min11:260 min15 Oct
Sydney11:46 → 09:5611:1820 min11:170 min15 Oct
Suva13:46 → 11:5611:290 min11:2827 min16 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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