Ruling · Mahānavamī · 1964

Thursday 15 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 99 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 14 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

Midday of Thursday 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

Navamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Navamī runs from 14:07 on Wed 14 Oct to 16:04 on Thu 15 Oct.

    1964-10-14T06:06:33Z → 1964-10-15T08:03:39Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 14th, 11:40–12:28 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 5917 s

  5. 05

    Ruling

    Mahānavamī, Baoding, 1964: Thursday 15 October.

    confidence: determinate

Say it like this

In Baoding, Mahānavamī 1964 falls on Thursday 15 October. Navamī runs from 14:07 on Wed 14 Oct to 16:04 on Thu 15 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1964/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 15 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 15 Oct
compat-drikpanchangComparison profileThu 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles23:07 → 01:0412:1548 min12:140 min14 Oct
Chicago01:07 → 03:0412:1248 min12:120 min14 Oct
Jersey City02:07 → 04:0412:1848 min12:180 min14 Oct
Port of Spain02:07 → 04:0411:2848 min11:280 min14 Oct
London07:07 → 09:0412:2248 min12:220 min14 Oct
Durban08:07 → 10:0411:1848 min11:180 min14 Oct
Dubai10:07 → 12:0411:4148 min11:4023 min14 Oct
Delhi11:37 → 13:3411:4348 min11:4348 min14 Oct
Kolkata11:37 → 13:3410:5810 min10:5848 min14 Oct
Singapore13:37 → 15:3411:570 min11:5648 min15 Oct
Sydney16:07 → 18:0411:180 min11:1748 min15 Oct
Suva18:07 → 20:0411:290 min11:2848 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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