Ruling · Mahāṣṭamī (Durga Ashtami) · 1920

Wednesday 20 October

Determinatein Puning, under the Rashtriya Panchang method. Clear of every threshold by 412 minutes.

Decide it for

PuningDelhiKolkataSingaporeSydneyJersey City

23°19′ N 116°10′ E · Asia/Shanghai · GeoNames 1802940

The two middays

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

Midday of Tuesday 19 October

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:36  12:24 madhyāhna ends
10:4811:1211:3612:0012:2412:4813:12

0 of 48 minutes covered

Midday of Wednesday 20 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:36  12:24 madhyāhna ends
10:4811:1211:3612:0012:2412:4813:12

48 of 48 minutes covered

Aṣṭamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 19:16 on Tue 19 Oct to 21:37 on Wed 20 Oct.

    1920-10-19T11:16:03Z → 1920-10-20T13:36:50Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 19th, 11:36–12:24 on the 20th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 19th and 48 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: paraviddha → only-day · margin 24706 s

  5. 05

    Ruling

    Mahāṣṭamī, Puning, 1920: Wednesday 20 October.

    confidence: determinate

Say it like this

In Puning, Mahāṣṭamī (Durga Ashtami) 1920 falls on Wednesday 20 October. Aṣṭamī runs from 19:16 on Tue 19 Oct to 21:37 on Wed 20 Oct and covers all of madhyāhna that midday.

ahargana.org/puning/festivals/1920/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 20 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 20 Oct
compat-drikpanchangComparison profileWed 20 Oct
No institution has a recorded ruling for Puning.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/mahashtami · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Śukla · Aṣṭamī
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 104

“S 8 Mahastami (paraviddha)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAṣṭamīMadhyāhna 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles03:16 → 05:3711:1448 min11:140 min19 Oct
Chicago06:16 → 08:3712:1148 min12:110 min19 Oct
Jersey City07:16 → 09:3712:1748 min12:170 min19 Oct
Port of Spain07:16 → 09:3711:2748 min11:270 min19 Oct
London12:16 → 14:3712:2148 min12:2148 min20 Oct
Durban13:16 → 15:3711:170 min11:1748 min20 Oct
Dubai15:16 → 17:3711:400 min11:4048 min20 Oct
Delhi16:46 → 19:0711:420 min11:4248 min20 Oct
Kolkata16:46 → 19:0710:580 min10:5748 min20 Oct
Singapore18:16 → 20:3711:260 min11:2648 min20 Oct
Sydney21:16 → 23:3711:170 min11:1648 min20 Oct
Suva23:16 → 01:3711:280 min11:2748 min20 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
mahashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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