Ruling · Mahānavamī · 1937

Thursday 14 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 13 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 13 October

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:40  12:28 madhyāhna ends
Navamī begins 12:41:16
10:5211:1611:4012:0412:2812:5213:16

0 of 48 minutes covered

Midday of Thursday 14 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 12:41 on Wed 13 Oct to 13:58 on Thu 14 Oct.

    1937-10-13T04:41:16Z → 1937-10-14T05:58:06Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:40–12:28 on the 13th, 11:40–12:28 on the 14th.

    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 13th and 48 of 48 on the 14th.

    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 779 s

  5. 05

    Ruling

    Mahānavamī, Baoding, 1937: Thursday 14 October.

    confidence: determinate

Say it like this

In Baoding, Mahānavamī 1937 falls on Thursday 14 October. Navamī runs from 12:41 on Wed 13 Oct to 13:58 on Thu 14 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1937/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 14 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 14 Oct
compat-drikpanchangComparison profileWed 13 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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles20:41 → 21:5811:1548 min11:150 min13 Oct
Chicago22:41 → 23:5811:1348 min11:120 min13 Oct
Jersey City23:41 → 00:5811:1848 min11:180 min13 Oct
Port of Spain00:41 → 01:5811:2848 min11:280 min13 Oct
London04:41 → 05:5811:2248 min11:220 min13 Oct
Durban06:41 → 07:5811:1848 min11:180 min13 Oct
Dubai08:41 → 09:5811:4148 min11:410 min13 Oct
Delhi10:11 → 11:2811:4348 min11:430 min13 Oct
Kolkata10:11 → 11:2810:5948 min10:5930 min13 Oct
Singapore12:01 → 13:1811:4734 min11:4748 min13 Oct
Sydney14:41 → 15:5811:180 min11:1848 min14 Oct
Suva16:41 → 17:5811:290 min11:2948 min14 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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