Midday of Thursday 31 August
Taken. Both middays qualify; the rule is silent, and this one is covered longer.
madhyāhna begins 11:43 12:31 madhyāhna ends
Aṣṭamī begins 11:37:30
10:5511:1911:4312:0712:3112:5513:19
48 of 48 minutes covered
Ruling · Rādhāṣṭamī · 2006
Boundaryin Luanda, under the Rashtriya Panchang method. Both middays qualify and the rule does not say which to take. Say “contested”.
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Thursday 31 August
Taken. Both middays qualify; the rule is silent, and this one is covered longer.
48 of 48 minutes covered
Midday of Friday 1 September
Qualifies with 21 of 48 minutes. Not taken.
21 of 48 minutes covered, the first 21
Aṅga
Aṣṭamī runs from 11:38 on Thu 31 Aug to 12:04 on Fri 1 Sep.
2006-08-31T10:37:31Z → 2006-09-01T11:03:45Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 31st, 11:43–12:31 on the 1st.
madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 31st and 21 of 48 on the 1st.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103
Tie-break
Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.
priority: unstated → greater-coverage · margin 358 s
Ruling
Rādhāṣṭamī, Luanda, 2006: Thursday 31 August.
confidence: boundary (tie-break-unstated)
In Luanda, Rādhāṣṭamī 2006 falls on Thursday 31 August. Aṣṭamī runs from 11:38 on Thu 31 Aug to 12:04 on Fri 1 Sep and covers all of madhyāhna that midday. It also reaches the next midday for 21 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Thu 31 Aug |
| Ahargaṇa, classical | Disc centre, no refraction | Thu 31 Aug |
| compat-drikpanchang | Comparison profile | Thu 31 Aug |
| No institution has a recorded ruling for Luanda. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/radhashtami · ruleset 2026.3-draft
“S 8 Durvastami (purvaviddha — S 8 of saura Bhadra except Bengal), Mahalaksmi vratarambha, Radhastami (madhyahna vyapini)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.
Twelve places, west to east. Local clock times.
| Place | Aṣṭamī | Madhyāhna 31st | Covered | Madhyāhna 1st | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 03:38 → 04:04 | 12:29 | 48 min | 12:29 | 0 min | 31 Aug |
| Chicago | 05:38 → 06:04 | 12:27 | 48 min | 12:26 | 0 min | 31 Aug |
| Jersey City | 06:38 → 07:04 | 12:32 | 48 min | 12:32 | 0 min | 31 Aug |
| Port of Spain | 06:38 → 07:04 | 11:42 | 48 min | 11:42 | 0 min | 31 Aug |
| London | 11:38 → 12:04 | 12:36 | 48 min | 12:36 | 0 min | 31 Aug |
| Durban | 12:38 → 13:04 | 11:32 | 0 min | 11:32 | 48 min | 1 Sep |
| Dubai | 14:38 → 15:04 | 11:55 | 0 min | 11:55 | 48 min | 1 Sep |
| Delhi | 16:08 → 16:34 | 11:57 | 0 min | 11:57 | 48 min | 1 Sep |
| Kolkata | 16:08 → 16:34 | 11:13 | 0 min | 11:12 | 48 min | 1 Sep |
| Singapore | 18:38 → 19:04 | 12:41 | 0 min | 12:41 | 48 min | 1 Sep |
| Sydney | 20:38 → 21:04 | 11:32 | 0 min | 11:32 | 48 min | 1 Sep |
| Suva | 22:38 → 23:04 | 11:43 | 0 min | 11:43 | 48 min | 1 Sep |