Ruling · Mahāṣṭamī (Durga Ashtami) · 2004

Wednesday 20 October

Boundaryin Algiers, under the Rashtriya Panchang method. A threshold is only 4 min 40 s away. Say “contested”.

Decide it for

AlgiersDelhiKolkataSingaporeSydneyJersey City

36°44′ N 3°05′ E · Africa/Algiers · GeoNames 2507480

The two middays

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

Midday of Wednesday 20 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 12:08  12:56 madhyāhna ends
Aṣṭamī begins 12:03:29
11:2011:4412:0812:3212:5613:2013:44

48 of 48 minutes covered

Midday of Thursday 21 October

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:08  12:56 madhyāhna ends
11:2011:4412:0812:3212:5613:2013:44

0 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 12:03 on Wed 20 Oct to 09:57 on Thu 21 Oct.

    2004-10-20T11:03:30Z → 2004-10-21T08:57:03Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 20th, 12:08–12:56 on the 21st.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.

    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 280 s < 300 s

  5. 05

    Ruling

    Mahāṣṭamī, Algiers, 2004: Wednesday 20 October.

    confidence: boundary (margin)

Say it like this

In Algiers, Mahāṣṭamī (Durga Ashtami) 2004 falls on Wednesday 20 October. Aṣṭamī runs from 12:03 on Wed 20 Oct to 09:57 on Thu 21 Oct and covers all of madhyāhna that midday. It is 4 min 40 s from a threshold: treat the date as contested.

ahargana.org/algiers/festivals/2004/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 Algiers.

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 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles04:03 → 01:5712:1348 min12:130 min20 Oct
Chicago06:03 → 03:5712:1148 min12:110 min20 Oct
Jersey City07:03 → 04:5712:1748 min12:170 min20 Oct
Port of Spain07:03 → 04:5711:2748 min11:270 min20 Oct
London12:03 → 09:5712:2148 min12:210 min20 Oct
Durban13:03 → 10:5711:170 min11:170 min21 Oct
Dubai15:03 → 12:5711:390 min11:3948 min21 Oct
Delhi16:33 → 14:2711:420 min11:4248 min21 Oct
Kolkata16:33 → 14:2710:570 min10:5748 min21 Oct
Singapore19:03 → 16:5712:250 min12:2548 min21 Oct
Sydney21:03 → 18:5711:160 min11:1648 min21 Oct
Suva23:03 → 20:5711:270 min11:2748 min21 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

About Ahargaṇa