Ruling · Mahānavamī · 1988

Wednesday 19 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 203 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 Wednesday 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 Thursday 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 08:16 on Wed 19 Oct to 06:24 on Thu 20 Oct.

    1988-10-19T00:15:52Z → 1988-10-19T22:23:47Z

  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 12180 s

  5. 05

    Ruling

    Mahānavamī, Baoding, 1988: Wednesday 19 October.

    confidence: determinate

Say it like this

In Baoding, Mahānavamī 1988 falls on Wednesday 19 October. Navamī runs from 08:16 on Wed 19 Oct to 06:24 on Thu 20 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1988/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 19 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 19 Oct
compat-drikpanchangComparison profileWed 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 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles17:16 → 15:2412:1448 min12:130 min19 Oct
Chicago19:16 → 17:2412:1148 min12:110 min19 Oct
Jersey City20:16 → 18:2412:1748 min12:170 min19 Oct
Port of Spain20:16 → 18:2411:2748 min11:270 min19 Oct
London01:16 → 23:2412:2148 min12:210 min19 Oct
Durban02:16 → 00:2411:1748 min11:170 min19 Oct
Dubai04:16 → 02:2411:4048 min11:390 min19 Oct
Delhi05:46 → 03:5411:4248 min11:420 min19 Oct
Kolkata05:46 → 03:5410:5748 min10:570 min19 Oct
Singapore08:16 → 06:2412:2648 min12:250 min19 Oct
Sydney10:16 → 08:2411:1648 min11:160 min19 Oct
Suva12:16 → 10:2411:270 min11:270 min20 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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