Midday of Wednesday 22 September
Taken. Both middays qualify; the rule is silent, and this one is covered longer.
madhyāhna begins 11:33 12:21 madhyāhna ends
10:4511:0911:3311:5712:2112:4513:09
48 of 48 minutes covered
Ruling · Rādhāṣṭamī · 2088
Boundaryin Tehran, 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 Wednesday 22 September
Taken. Both middays qualify; the rule is silent, and this one is covered longer.
48 of 48 minutes covered
Midday of Thursday 23 September
Qualifies with 48 of 48 minutes. Not taken.
48 of 48 minutes covered
Aṅga
Aṣṭamī runs from 10:43 on Wed 22 Sep to 13:10 on Thu 23 Sep.
2088-09-22T07:13:04Z → 2088-09-23T09:39:50Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:33–12:21 on the 22nd, 11:32–12:20 on the 23rd.
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 22nd and 48 of 48 on the 23rd.
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 2965 s
Ruling
Rādhāṣṭamī, Tehran, 2088: Wednesday 22 September.
confidence: boundary (tie-break-unstated)
In Tehran, Rādhāṣṭamī 2088 falls on Wednesday 22 September. Aṣṭamī runs from 10:43 on Wed 22 Sep to 13:10 on Thu 23 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 | Wed 22 Sep |
| Ahargaṇa, classical | Disc centre, no refraction | Wed 22 Sep |
| compat-drikpanchang | Comparison profile | Wed 22 Sep |
| No institution has a recorded ruling for Tehran. | ||
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 22nd | Covered | Madhyāhna 23rd | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 00:13 → 02:40 | 12:21 | 48 min | 12:21 | 0 min | 22 Sep |
| Chicago | 02:13 → 04:40 | 12:19 | 48 min | 12:18 | 0 min | 22 Sep |
| Jersey City | 03:13 → 05:40 | 12:25 | 48 min | 12:24 | 0 min | 22 Sep |
| Port of Spain | 03:13 → 05:40 | 11:35 | 48 min | 11:34 | 0 min | 22 Sep |
| London | 08:13 → 10:40 | 12:29 | 48 min | 12:28 | 0 min | 22 Sep |
| Durban | 09:13 → 11:40 | 11:25 | 48 min | 11:24 | 15 min | 22 Sep |
| Dubai | 11:13 → 13:40 | 11:47 | 48 min | 11:47 | 48 min | 22 Sep |
| Delhi | 12:43 → 15:10 | 11:50 | 0 min | 11:49 | 48 min | 23 Sep |
| Kolkata | 12:43 → 15:10 | 11:05 | 0 min | 11:05 | 48 min | 23 Sep |
| Singapore | 15:13 → 17:40 | 12:33 | 0 min | 12:33 | 48 min | 23 Sep |
| Sydney | 17:13 → 19:40 | 11:24 | 0 min | 11:24 | 48 min | 23 Sep |
| Suva | 19:13 → 21:40 | 11:35 | 0 min | 11:35 | 48 min | 23 Sep |