Midday of Sunday 20 October
Taken. The only midday Aṣṭamī reaches.
madhyāhna begins 11:25 12:13 madhyāhna ends
Aṣṭamī begins 12:12:13
10:3711:0111:2511:4912:1312:3713:01
1 of 48 minutes covered, the last 1
Ruling · Mahāṣṭamī (Durga Ashtami) · 1985
Boundaryin Tehran, under the Rashtriya Panchang method. A threshold is only 0 min 41 s away. Say “contested”.
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Sunday 20 October
Taken. The only midday Aṣṭamī reaches.
1 of 48 minutes covered, the last 1
Midday of Monday 21 October
Aṣṭamī is absent from madhyāhna. Not taken.
0 of 48 minutes covered
Aṅga
Aṣṭamī runs from 12:12 on Sun 20 Oct to 11:23 on Mon 21 Oct.
1985-10-20T08:42:13Z → 1985-10-21T07:53:07Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:25–12:13 on the 20th, 11:25–12:13 on the 21st.
madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Aṣṭamī must be present during madhyāhna. It covers 1 of 48 minutes on the 20th and 0 of 48 on the 21st.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104
Tie-break
Only one midday qualifies. No tie-break is needed.
priority: paraviddha → only-day · margin 41 s < 300 s
Ruling
Mahāṣṭamī, Tehran, 1985: Sunday 20 October.
confidence: boundary (margin)
In Tehran, Mahāṣṭamī (Durga Ashtami) 1985 falls on Sunday 20 October. Aṣṭamī runs from 12:12 on Sun 20 Oct to 11:23 on Mon 21 Oct and covers 1 of 48 minutes of madhyāhna that midday. It is 0 min 41 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Sun 20 Oct |
| Ahargaṇa, classical | Disc centre, no refraction | Sun 20 Oct |
| compat-drikpanchang | Comparison profile | Mon 21 Oct |
| No institution has a recorded ruling for Tehran. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/mahashtami · ruleset 2026.3-draft
“S 8 Mahastami (paraviddha)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.
Twelve places, west to east. Local clock times.
| Place | Aṣṭamī | Madhyāhna 20th | Covered | Madhyāhna 21st | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 01:42 → 00:53 | 12:13 | 48 min | 12:13 | 0 min | 20 Oct |
| Chicago | 03:42 → 02:53 | 12:11 | 48 min | 12:11 | 0 min | 20 Oct |
| Jersey City | 04:42 → 03:53 | 12:17 | 48 min | 12:17 | 0 min | 20 Oct |
| Port of Spain | 04:42 → 03:53 | 11:27 | 48 min | 11:27 | 0 min | 20 Oct |
| London | 09:42 → 08:53 | 12:21 | 48 min | 12:21 | 0 min | 20 Oct |
| Durban | 10:42 → 09:53 | 11:17 | 48 min | 11:17 | 0 min | 20 Oct |
| Dubai | 12:42 → 11:53 | 11:39 | 0 min | 11:39 | 14 min | 21 Oct |
| Delhi | 14:12 → 13:23 | 11:42 | 0 min | 11:42 | 48 min | 21 Oct |
| Kolkata | 14:12 → 13:23 | 10:57 | 0 min | 10:57 | 48 min | 21 Oct |
| Singapore | 16:42 → 15:53 | 12:25 | 0 min | 12:25 | 48 min | 21 Oct |
| Sydney | 18:42 → 17:53 | 11:16 | 0 min | 11:16 | 48 min | 21 Oct |
| Suva | 20:42 → 19:53 | 11:27 | 0 min | 11:27 | 48 min | 21 Oct |