Midday of Thursday 9 September
Taken. Both middays qualify; the rule is silent, and this one is covered longer.
48 of 48 minutes covered
Ruling · Rādhāṣṭamī · 1948
Boundaryin Phoenix, 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 9 September
Taken. Both middays qualify; the rule is silent, and this one is covered longer.
48 of 48 minutes covered
Midday of Friday 10 September
Qualifies with 22 of 48 minutes. Not taken.
22 of 48 minutes covered, the first 22
Aṅga
Aṣṭamī runs from 11:58 on Thu 9 Sep to 12:23 on Fri 10 Sep.
1948-09-09T18:57:44Z → 1948-09-10T19:23:06Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 12:01–12:49 on the 9th, 12:01–12:49 on the 10th.
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 9th and 22 of 48 on the 10th.
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 208 s < 300 s
Ruling
Rādhāṣṭamī, Phoenix, 1948: Thursday 9 September.
confidence: boundary (margin, tie-break-unstated)
In Phoenix, Rādhāṣṭamī 1948 falls on Thursday 9 September. Aṣṭamī runs from 11:58 on Thu 9 Sep to 12:23 on Fri 10 Sep and covers all of madhyāhna that midday. It also reaches the next midday for 22 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested. It is 3 min 28 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Thu 9 Sep |
| Ahargaṇa, classical | Disc centre, no refraction | Thu 9 Sep |
| compat-drikpanchang | Comparison profile | Thu 9 Sep |
| No institution has a recorded ruling for Phoenix. | ||
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 9th | Covered | Madhyāhna 10th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 11:58 → 12:23 | 12:26 | 48 min | 12:26 | 0 min | 9 Sep |
| Chicago | 13:58 → 14:23 | 12:23 | 0 min | 12:23 | 48 min | 10 Sep |
| Jersey City | 14:58 → 15:23 | 12:29 | 0 min | 12:29 | 48 min | 10 Sep |
| Port of Spain | 14:58 → 15:23 | 11:39 | 0 min | 11:39 | 48 min | 10 Sep |
| London | 19:58 → 20:23 | 12:33 | 0 min | 12:33 | 48 min | 10 Sep |
| Durban | 20:58 → 21:23 | 11:29 | 0 min | 11:29 | 48 min | 10 Sep |
| Dubai | 22:58 → 23:23 | 11:52 | 0 min | 11:52 | 48 min | 10 Sep |
| Delhi | 00:28 → 00:53 | 11:54 | 0 min | 11:54 | 48 min | 10 Sep |
| Kolkata | 00:28 → 00:53 | 11:10 | 0 min | 11:09 | 48 min | 10 Sep |
| Singapore | 02:28 → 02:53 | 12:08 | 0 min | 12:08 | 48 min | 10 Sep |
| Sydney | 04:58 → 05:23 | 11:29 | 0 min | 11:29 | 48 min | 10 Sep |
| Suva | 06:58 → 07:23 | 11:40 | 0 min | 11:40 | 48 min | 10 Sep |