Ruling · Mahānavamī · 2060

Monday 4 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 271 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 Sunday 3 October

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:43  12:31 madhyāhna ends
10:5511:1911:4312:0712:3112:5513:19

0 of 48 minutes covered

Midday of Monday 4 October

Taken. The only midday Navamī reaches.

madhyāhna begins 11:43  12:31 madhyāhna ends
10:5511:1911:4312:0712:3112:5513:19

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 17:02 on Sun 3 Oct to 17:04 on Mon 4 Oct.

    2060-10-03T09:01:31Z → 2060-10-04T09:04:14Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 3rd, 11:43–12:31 on the 4th.

    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 3rd and 48 of 48 on the 4th.

    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 16240 s

  5. 05

    Ruling

    Mahānavamī, Baoding, 2060: Monday 4 October.

    confidence: determinate

Say it like this

In Baoding, Mahānavamī 2060 falls on Monday 4 October. Navamī runs from 17:02 on Sun 3 Oct to 17:04 on Mon 4 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2060/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 4 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 4 Oct
compat-drikpanchangComparison profileMon 4 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 3rdCoveredMadhyāhna 4thCoveredRuled
Los Angeles02:02 → 02:0412:1848 min12:170 min3 Oct
Chicago04:02 → 04:0412:1548 min12:150 min3 Oct
Jersey City05:02 → 05:0412:2148 min12:210 min3 Oct
Port of Spain05:02 → 05:0411:3148 min11:310 min3 Oct
London10:02 → 10:0412:2548 min12:250 min3 Oct
Durban11:02 → 11:0411:2148 min11:210 min3 Oct
Dubai13:02 → 13:0411:440 min11:4348 min4 Oct
Delhi14:32 → 14:3411:460 min11:4648 min4 Oct
Kolkata14:32 → 14:3411:010 min11:0148 min4 Oct
Singapore17:02 → 17:0412:300 min12:2948 min4 Oct
Sydney20:02 → 20:0412:200 min12:2048 min4 Oct
Suva21:02 → 21:0411:310 min11:3148 min4 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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