Ruling · Mahānavamī · 1959

Saturday 10 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 581 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 Friday 9 October

Navamī is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

Midday of Saturday 10 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 23:32 on Fri 9 Oct to 22:11 on Sat 10 Oct.

    1959-10-09T15:31:30Z → 1959-10-10T14:10:32Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:41–12:29 on the 9th, 11:41–12:29 on the 10th.

    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 9th and 48 of 48 on the 10th.

    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 34884 s

  5. 05

    Ruling

    Mahānavamī, Baoding, 1959: Saturday 10 October.

    confidence: determinate

Say it like this

In Baoding, Mahānavamī 1959 falls on Saturday 10 October. Navamī runs from 23:32 on Fri 9 Oct to 22:11 on Sat 10 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1959/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 10 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 10 Oct
compat-drikpanchangComparison profileSat 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 9thCoveredMadhyāhna 10thCoveredRuled
Los Angeles07:32 → 06:1111:1648 min11:160 min9 Oct
Chicago10:32 → 09:1112:1448 min12:130 min9 Oct
Jersey City11:32 → 10:1112:1948 min12:190 min9 Oct
Port of Spain11:32 → 10:1111:2946 min11:290 min9 Oct
London15:32 → 14:1111:240 min11:2348 min10 Oct
Durban17:32 → 16:1111:200 min11:1948 min10 Oct
Dubai19:32 → 18:1111:420 min11:4248 min10 Oct
Delhi21:02 → 19:4111:440 min11:4448 min10 Oct
Kolkata21:02 → 19:4111:000 min11:0048 min10 Oct
Singapore23:02 → 21:4111:580 min11:5848 min10 Oct
Sydney01:32 → 00:1111:190 min11:1948 min10 Oct
Suva03:32 → 02:1111:300 min11:3048 min10 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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