Ruling · Mahānavamī · 1932

Saturday 8 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 175 minutes.

Decide it for

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Friday 7 October

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:04  11:52 madhyāhna ends
10:1610:4011:0411:2811:5212:1612:40

0 of 48 minutes covered

Midday of Saturday 8 October

Taken. The only midday Navamī reaches.

madhyāhna begins 11:03  11:51 madhyāhna ends
10:1510:3911:0311:2711:5112:1512:39

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 15:29 on Fri 7 Oct to 14:46 on Sat 8 Oct.

    1932-10-07T07:29:29Z → 1932-10-08T06:45:49Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:04–11:52 on the 7th, 11:03–11:51 on the 8th.

    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 7th and 48 of 48 on the 8th.

    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 10471 s

  5. 05

    Ruling

    Mahānavamī, Daqing, 1932: Saturday 8 October.

    confidence: determinate

Say it like this

In Daqing, Mahānavamī 1932 falls on Saturday 8 October. Navamī runs from 15:29 on Fri 7 Oct to 14:46 on Sat 8 Oct and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/1932/mahanavami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 8 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 8 Oct
compat-drikpanchangComparison profileSat 8 Oct
No institution has a recorded ruling for Daqing.

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 7thCoveredMadhyāhna 8thCoveredRuled
Los Angeles23:29 → 22:4611:1748 min11:160 min7 Oct
Chicago01:29 → 00:4611:1448 min11:140 min7 Oct
Jersey City02:29 → 01:4611:2048 min11:200 min7 Oct
Port of Spain03:29 → 02:4611:3048 min11:300 min7 Oct
London07:29 → 06:4611:2448 min11:240 min7 Oct
Durban09:29 → 08:4611:2048 min11:200 min7 Oct
Dubai11:29 → 10:4611:4348 min11:420 min7 Oct
Delhi12:59 → 12:1611:450 min11:4531 min8 Oct
Kolkata12:59 → 12:1611:000 min11:0048 min8 Oct
Singapore14:29 → 13:4611:290 min11:2848 min8 Oct
Sydney17:29 → 16:4611:190 min11:1948 min8 Oct
Suva19:29 → 18:4611:300 min11:3048 min8 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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