Midday of Sunday 16 September
Taken. Both middays qualify; the rule is silent, and this one is covered longer.
madhyāhna begins 11:38 12:26 madhyāhna ends
Aṣṭamī begins 11:24:25
10:5011:1411:3812:0212:2612:5013:14
48 of 48 minutes covered
Ruling · Rādhāṣṭamī · 2018
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 Sunday 16 September
Taken. Both middays qualify; the rule is silent, and this one is covered longer.
48 of 48 minutes covered
Midday of Monday 17 September
Qualifies with 48 of 48 minutes. Not taken.
48 of 48 minutes covered
Aṅga
Aṣṭamī runs from 11:24 on Sun 16 Sep to 13:15 on Mon 17 Sep.
2018-09-16T10:24:25Z → 2018-09-17T12:14:32Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 16th, 11:38–12:26 on the 17th.
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 16th and 48 of 48 on the 17th.
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 815 s
Ruling
Rādhāṣṭamī, Luanda, 2018: Sunday 16 September.
confidence: boundary (tie-break-unstated)
In Luanda, Rādhāṣṭamī 2018 falls on Sunday 16 September. Aṣṭamī runs from 11:24 on Sun 16 Sep to 13:15 on Mon 17 Sep and covers all of madhyāhna that midday. It also reaches the next midday for 48 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 | Sun 16 Sep |
| Ahargaṇa, classical | Disc centre, no refraction | Sun 16 Sep |
| compat-drikpanchang | Comparison profile | Mon 17 Sep |
| 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 16th | Covered | Madhyāhna 17th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 03:24 → 05:15 | 12:23 | 48 min | 12:23 | 0 min | 16 Sep |
| Chicago | 05:24 → 07:15 | 12:21 | 48 min | 12:21 | 0 min | 16 Sep |
| Jersey City | 06:24 → 08:15 | 12:27 | 48 min | 12:26 | 0 min | 16 Sep |
| Port of Spain | 06:24 → 08:15 | 11:37 | 48 min | 11:36 | 0 min | 16 Sep |
| London | 11:24 → 13:15 | 12:31 | 48 min | 12:30 | 44 min | 16 Sep |
| Durban | 12:24 → 14:15 | 11:27 | 0 min | 11:27 | 48 min | 17 Sep |
| Dubai | 14:24 → 16:15 | 11:49 | 0 min | 11:49 | 48 min | 17 Sep |
| Delhi | 15:54 → 17:45 | 11:52 | 0 min | 11:51 | 48 min | 17 Sep |
| Kolkata | 15:54 → 17:45 | 11:07 | 0 min | 11:07 | 48 min | 17 Sep |
| Singapore | 18:24 → 20:15 | 12:36 | 0 min | 12:35 | 48 min | 17 Sep |
| Sydney | 20:24 → 22:15 | 11:26 | 0 min | 11:26 | 48 min | 17 Sep |
| Suva | 22:24 → 00:15 | 11:37 | 0 min | 11:37 | 48 min | 17 Sep |