Ruling · Mahānavamī · 2081

Saturday 11 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 5 min 43 s.

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 Friday 10 October

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:41  12:29 madhyāhna ends
Navamī begins 12:34:43
10:5311:1711:4112:0512:2912:5313:17

0 of 48 minutes covered

Midday of Saturday 11 October

Taken. The only midday Navamī reaches.

madhyāhna begins 11:41  12:29 madhyāhna ends
10:5311:1711:4112:0512:2912:5313:17

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 12:35 on Fri 10 Oct to 14:16 on Sat 11 Oct.

    2081-10-10T04:34:43Z → 2081-10-11T06:15:36Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 10th, 11:41–12:29 on the 11th.

    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 10th and 48 of 48 on the 11th.

    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 343 s

  5. 05

    Ruling

    Mahānavamī, Baoding, 2081: Saturday 11 October.

    confidence: determinate

Say it like this

In Baoding, Mahānavamī 2081 falls on Saturday 11 October. Navamī runs from 12:35 on Fri 10 Oct to 14:16 on Sat 11 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2081/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 11 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 11 Oct
compat-drikpanchangComparison profileFri 10 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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles21:35 → 23:1612:1648 min12:150 min10 Oct
Chicago23:35 → 01:1612:1348 min12:130 min10 Oct
Jersey City00:35 → 02:1612:1948 min12:190 min10 Oct
Port of Spain00:35 → 02:1611:2948 min11:290 min10 Oct
London05:35 → 07:1612:2348 min12:230 min10 Oct
Durban06:35 → 08:1611:1948 min11:190 min10 Oct
Dubai08:35 → 10:1611:4248 min11:410 min10 Oct
Delhi10:05 → 11:4611:4448 min11:442 min10 Oct
Kolkata10:05 → 11:4611:0048 min10:5946 min10 Oct
Singapore12:35 → 14:1612:2841 min12:2748 min10 Oct
Sydney15:35 → 17:1612:190 min12:1848 min11 Oct
Suva16:35 → 18:1611:300 min11:2948 min11 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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