Ruling · Mahānavamī · 1969

Sunday 19 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 491 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 Sunday 19 October

Taken. The only midday Navamī reaches.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

48 of 48 minutes covered

Midday of Monday 20 October

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

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 03:28 on Sun 19 Oct to 01:23 on Mon 20 Oct.

    1969-10-18T19:27:35Z → 1969-10-19T17:22:43Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 19th, 11:39–12:27 on the 20th.

    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 19th and 0 of 48 on the 20th.

    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 29482 s

  5. 05

    Ruling

    Mahānavamī, Baoding, 1969: Sunday 19 October.

    confidence: determinate

Say it like this

In Baoding, Mahānavamī 1969 falls on Sunday 19 October. Navamī runs from 03:28 on Sun 19 Oct to 01:23 on Mon 20 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1969/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 19 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 19 Oct
compat-drikpanchangComparison profileSun 19 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 18thCoveredMadhyāhna 19thCoveredRuled
Los Angeles12:28 → 10:2312:1434 min12:140 min18 Oct
Chicago14:28 → 12:2312:110 min12:1111 min19 Oct
Jersey City15:28 → 13:2312:170 min12:1748 min19 Oct
Port of Spain15:28 → 13:2311:270 min11:2748 min19 Oct
London20:28 → 18:2312:210 min12:2148 min19 Oct
Durban21:28 → 19:2311:170 min11:1748 min19 Oct
Dubai23:28 → 21:2311:400 min11:4048 min19 Oct
Delhi00:58 → 22:5311:420 min11:4248 min19 Oct
Kolkata00:58 → 22:5310:580 min10:5748 min19 Oct
Singapore02:58 → 00:5311:560 min11:5648 min19 Oct
Sydney05:28 → 03:2311:170 min11:1748 min19 Oct
Suva07:28 → 05:2311:280 min11:2848 min19 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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