Ruling · Mahāṣṭamī (Durga Ashtami) · 1982

Monday 25 October

Determinatein Luanda, under the Rashtriya Panchang method. Clear of every threshold by 23 minutes.

Decide it for

8°50′ S 13°14′ E · Africa/Luanda · GeoNames 2240449

The two middays

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

Midday of Sunday 24 October

Qualifies with 25 of 48 minutes. Not taken.

madhyāhna begins 11:27  12:15 madhyāhna ends
Aṣṭamī begins 11:50:34
10:3911:0311:2711:5112:1512:3913:03

25 of 48 minutes covered, the last 25

Midday of Monday 25 October

Taken. Both middays qualify; the rule takes the second.

madhyāhna begins 11:27  12:15 madhyāhna ends
10:3911:0311:2711:5112:1512:3913:03

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 11:51 on Sun 24 Oct to 14:20 on Mon 25 Oct.

    1982-10-24T10:50:34Z → 1982-10-25T13:20:11Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:27–12:15 on the 24th, 11:27–12:15 on the 25th.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 25 of 48 minutes on the 24th and 48 of 48 on the 25th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Both middays qualify. Paraviddhā: the second is taken.

    priority: paraviddha → paraviddha · margin 1392 s

  5. 05

    Ruling

    Mahāṣṭamī, Luanda, 1982: Monday 25 October.

    confidence: determinate

Say it like this

In Luanda, Mahāṣṭamī (Durga Ashtami) 1982 falls on Monday 25 October. Aṣṭamī runs from 11:51 on Sun 24 Oct to 14:20 on Mon 25 Oct and covers all of madhyāhna that midday. It also reaches the previous midday for 25 minutes; by the rule the second midday is taken.

ahargana.org/luanda/festivals/1982/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 25 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 25 Oct
compat-drikpanchangComparison profileMon 25 Oct
No institution has a recorded ruling for Luanda.

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 24thCoveredMadhyāhna 25thCoveredRuled
Los Angeles03:51 → 06:2012:1348 min12:130 min24 Oct
Chicago05:51 → 08:2012:1148 min12:100 min24 Oct
Jersey City06:51 → 09:2012:1648 min12:160 min24 Oct
Port of Spain06:51 → 09:2011:2648 min11:260 min24 Oct
London10:51 → 13:2011:2048 min11:2048 min25 Oct
Durban12:51 → 15:2011:160 min11:1648 min25 Oct
Dubai14:51 → 17:2011:390 min11:3948 min25 Oct
Delhi16:21 → 18:5011:410 min11:4148 min25 Oct
Kolkata16:21 → 18:5010:570 min10:5748 min25 Oct
Singapore18:51 → 21:2012:250 min12:2548 min25 Oct
Sydney20:51 → 23:2011:160 min11:1648 min25 Oct
Suva22:51 → 01:2011:270 min11:2748 min25 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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