Midday of Friday 18 September
Taken. Both middays qualify; the rule is silent, and this one is covered longer.
madhyāhna begins 11:26 12:14 madhyāhna ends
10:3811:0211:2611:5012:1412:3813:02
48 of 48 minutes covered
Ruling · Rādhāṣṭamī · 2026
Boundaryin Durban, 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 Friday 18 September
Taken. Both middays qualify; the rule is silent, and this one is covered longer.
48 of 48 minutes covered
Midday of Saturday 19 September
Qualifies with 32 of 48 minutes. Not taken.
32 of 48 minutes covered, the first 32
Aṅga
Aṣṭamī runs from 09:32 on Fri 18 Sep to 11:57 on Sat 19 Sep.
2026-09-18T07:31:35Z → 2026-09-19T09:57:27Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:26–12:14 on the 18th, 11:26–12:14 on the 19th.
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 18th and 32 of 48 on the 19th.
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 988 s
Ruling
Rādhāṣṭamī, Durban, 2026: Friday 18 September.
confidence: boundary (tie-break-unstated)
In Durban, Rādhāṣṭamī 2026 falls on Friday 18 September. Aṣṭamī runs from 09:32 on Fri 18 Sep to 11:57 on Sat 19 Sep and covers all of madhyāhna that midday. It also reaches the next midday for 32 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 | Fri 18 Sep |
| Ahargaṇa, classical | Disc centre, no refraction | Fri 18 Sep |
| compat-drikpanchang | Comparison profile | Fri 18 Sep |
| No institution has a recorded ruling for Durban. | ||
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 18th | Covered | Madhyāhna 19th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 00:32 → 02:57 | 12:23 | 48 min | 12:22 | 0 min | 18 Sep |
| Chicago | 02:32 → 04:57 | 12:20 | 48 min | 12:20 | 0 min | 18 Sep |
| Jersey City | 03:32 → 05:57 | 12:26 | 48 min | 12:26 | 0 min | 18 Sep |
| Port of Spain | 03:32 → 05:57 | 11:36 | 48 min | 11:36 | 0 min | 18 Sep |
| London | 08:32 → 10:57 | 12:30 | 48 min | 12:30 | 0 min | 18 Sep |
| Durban | 09:32 → 11:57 | 11:26 | 48 min | 11:26 | 32 min | 18 Sep |
| Dubai | 11:32 → 13:57 | 11:49 | 48 min | 11:48 | 48 min | 18 Sep |
| Delhi | 13:02 → 15:27 | 11:51 | 0 min | 11:51 | 48 min | 19 Sep |
| Kolkata | 13:02 → 15:27 | 11:07 | 0 min | 11:06 | 48 min | 19 Sep |
| Singapore | 15:32 → 17:57 | 12:35 | 0 min | 12:34 | 48 min | 19 Sep |
| Sydney | 17:32 → 19:57 | 11:26 | 0 min | 11:25 | 48 min | 19 Sep |
| Suva | 19:32 → 21:57 | 11:37 | 0 min | 11:36 | 48 min | 19 Sep |