Ruling · Mahānavamī · 2057

Saturday 6 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 208 minutes.

Decide it for

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 Saturday 6 October

Taken. The only midday Navamī reaches.

madhyāhna begins 11:42  12:30 madhyāhna ends
10:5411:1811:4212:0612:3012:5413:18

48 of 48 minutes covered

Midday of Sunday 7 October

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:42  12:30 madhyāhna ends
10:5411:1811:4212:0612:3012:5413:18

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 08:14 on Sat 6 Oct to 06:18 on Sun 7 Oct.

    2057-10-06T00:13:51Z → 2057-10-06T22:18:01Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 6th, 11:42–12:30 on the 7th.

    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 6th and 0 of 48 on the 7th.

    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 12490 s

  5. 05

    Ruling

    Mahānavamī, Baoding, 2057: Saturday 6 October.

    confidence: determinate

Say it like this

In Baoding, Mahānavamī 2057 falls on Saturday 6 October. Navamī runs from 08:14 on Sat 6 Oct to 06:18 on Sun 7 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2057/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 6 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 6 Oct
compat-drikpanchangComparison profileSat 6 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 6thCoveredMadhyāhna 7thCoveredRuled
Los Angeles17:14 → 15:1812:1748 min12:160 min6 Oct
Chicago19:14 → 17:1812:1448 min12:140 min6 Oct
Jersey City20:14 → 18:1812:2048 min12:200 min6 Oct
Port of Spain20:14 → 18:1811:3048 min11:300 min6 Oct
London01:14 → 23:1812:2448 min12:240 min6 Oct
Durban02:14 → 00:1811:2048 min11:200 min6 Oct
Dubai04:14 → 02:1811:4348 min11:420 min6 Oct
Delhi05:44 → 03:4811:4548 min11:450 min6 Oct
Kolkata05:44 → 03:4811:0148 min11:000 min6 Oct
Singapore08:14 → 06:1812:2948 min12:280 min6 Oct
Sydney10:14 → 09:1811:2048 min12:190 min6 Oct
Suva12:14 → 10:1811:315 min11:300 min6 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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