Ruling · Mahānavamī · 2042

Thursday 23 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 551 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 22 October

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:38  12:26 madhyāhna ends
10:5011:1411:3812:0212:2612:5013:14

0 of 48 minutes covered

Midday of Thursday 23 October

Taken. The only midday Navamī reaches.

madhyāhna begins 11:38  12:26 madhyāhna ends
10:5011:1411:3812:0212:2612:5013:14

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 22:39 on Wed 22 Oct to 21:37 on Thu 23 Oct.

    2042-10-22T14:38:56Z → 2042-10-23T13:37:22Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 22nd, 11:38–12:26 on the 23rd.

    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 22nd and 48 of 48 on the 23rd.

    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 33066 s

  5. 05

    Ruling

    Mahānavamī, Baoding, 2042: Thursday 23 October.

    confidence: determinate

Say it like this

In Baoding, Mahānavamī 2042 falls on Thursday 23 October. Navamī runs from 22:39 on Wed 22 Oct to 21:37 on Thu 23 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2042/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 23 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 23 Oct
compat-drikpanchangComparison profileThu 23 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 22ndCoveredMadhyāhna 23rdCoveredRuled
Los Angeles07:39 → 06:3712:1348 min12:130 min22 Oct
Chicago09:39 → 08:3712:1148 min12:110 min22 Oct
Jersey City10:39 → 09:3712:1648 min12:160 min22 Oct
Port of Spain10:39 → 09:3711:2648 min11:260 min22 Oct
London15:39 → 14:3712:210 min12:2048 min23 Oct
Durban16:39 → 15:3711:170 min11:1648 min23 Oct
Dubai18:39 → 17:3711:390 min11:3948 min23 Oct
Delhi20:09 → 19:0711:410 min11:4148 min23 Oct
Kolkata20:09 → 19:0710:570 min10:5748 min23 Oct
Singapore22:39 → 21:3712:250 min12:2548 min23 Oct
Sydney01:39 → 00:3712:160 min12:1648 min23 Oct
Suva02:39 → 01:3711:270 min11:2748 min23 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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