Midday of Sunday 6 September
Taken. Both middays qualify; the rule is silent, and this one is covered longer.
madhyāhna begins 11:09 11:57 madhyāhna ends
10:2110:4511:0911:3311:5712:2112:45
48 of 48 minutes covered
Ruling · Rādhāṣṭamī · 1981
Boundaryin Sapporo, 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 6 September
Taken. Both middays qualify; the rule is silent, and this one is covered longer.
48 of 48 minutes covered
Midday of Monday 7 September
Qualifies with 27 of 48 minutes. Not taken.
27 of 48 minutes covered, the first 27
Aṅga
Aṣṭamī runs from 09:13 on Sun 6 Sep to 11:35 on Mon 7 Sep.
1981-09-06T00:12:58Z → 1981-09-07T02:35:04Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:09–11:57 on the 6th, 11:08–11:56 on the 7th.
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 6th and 27 of 48 on the 7th.
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 1277 s
Ruling
Rādhāṣṭamī, Sapporo, 1981: Sunday 6 September.
confidence: boundary (tie-break-unstated)
In Sapporo, Rādhāṣṭamī 1981 falls on Sunday 6 September. Aṣṭamī runs from 09:13 on Sun 6 Sep to 11:35 on Mon 7 Sep and covers all of madhyāhna that midday. It also reaches the next midday for 27 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 6 Sep |
| Ahargaṇa, classical | Disc centre, no refraction | Sun 6 Sep |
| compat-drikpanchang | Comparison profile | Sun 6 Sep |
| No institution has a recorded ruling for Sapporo. | ||
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 6th | Covered | Madhyāhna 7th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 17:13 → 19:35 | 12:27 | 48 min | 12:27 | 0 min | 6 Sep |
| Chicago | 19:13 → 21:35 | 12:24 | 48 min | 12:24 | 0 min | 6 Sep |
| Jersey City | 20:13 → 22:35 | 12:30 | 48 min | 12:30 | 0 min | 6 Sep |
| Port of Spain | 20:13 → 22:35 | 11:40 | 48 min | 11:40 | 0 min | 6 Sep |
| London | 01:13 → 03:35 | 12:34 | 48 min | 12:34 | 0 min | 6 Sep |
| Durban | 02:13 → 04:35 | 11:30 | 48 min | 11:30 | 0 min | 6 Sep |
| Dubai | 04:13 → 06:35 | 11:53 | 48 min | 11:53 | 0 min | 6 Sep |
| Delhi | 05:43 → 08:05 | 11:55 | 48 min | 11:55 | 0 min | 6 Sep |
| Kolkata | 05:43 → 08:05 | 11:11 | 48 min | 11:10 | 0 min | 6 Sep |
| Singapore | 07:43 → 10:05 | 12:09 | 48 min | 12:09 | 0 min | 6 Sep |
| Sydney | 10:13 → 12:35 | 11:30 | 48 min | 11:30 | 48 min | 6 Sep |
| Suva | 12:13 → 14:35 | 11:41 | 16 min | 11:41 | 48 min | 7 Sep |