Midday of Thursday 13 September
Aṣṭamī is absent from madhyāhna. Not taken.
madhyāhna begins 11:36 12:24 madhyāhna ends
10:4811:1211:3612:0012:2412:4813:12
0 of 48 minutes covered
Ruling · Rādhāṣṭamī · 2040
Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 259 minutes.
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Thursday 13 September
Aṣṭamī is absent from madhyāhna. Not taken.
0 of 48 minutes covered
Midday of Friday 14 September
Taken. The only midday Aṣṭamī reaches.
48 of 48 minutes covered
Aṅga
Aṣṭamī runs from 18:26 on Thu 13 Sep to 16:42 on Fri 14 Sep.
2040-09-13T14:56:09Z → 2040-09-14T13:12:26Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 11:36–12:24 on the 13th, 11:35–12:23 on the 14th.
madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 13th and 48 of 48 on the 14th.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103
Tie-break
Only one midday qualifies. No tie-break is needed.
priority: unstated → only-day · margin 15538 s
Ruling
Rādhāṣṭamī, Tehran, 2040: Friday 14 September.
confidence: determinate
In Tehran, Rādhāṣṭamī 2040 falls on Friday 14 September. Aṣṭamī runs from 18:26 on Thu 13 Sep to 16:42 on Fri 14 Sep and covers all of madhyāhna that midday.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Fri 14 Sep |
| Ahargaṇa, classical | Disc centre, no refraction | Fri 14 Sep |
| compat-drikpanchang | Comparison profile | Fri 14 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 13th | Covered | Madhyāhna 14th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 07:56 → 06:12 | 12:24 | 48 min | 12:24 | 0 min | 13 Sep |
| Chicago | 09:56 → 08:12 | 12:22 | 48 min | 12:22 | 0 min | 13 Sep |
| Jersey City | 10:56 → 09:12 | 12:28 | 48 min | 12:27 | 0 min | 13 Sep |
| Port of Spain | 10:56 → 09:12 | 11:38 | 48 min | 11:37 | 0 min | 13 Sep |
| London | 15:56 → 14:12 | 12:32 | 0 min | 12:31 | 48 min | 14 Sep |
| Durban | 16:56 → 15:12 | 11:28 | 0 min | 11:28 | 48 min | 14 Sep |
| Dubai | 18:56 → 17:12 | 11:50 | 0 min | 11:50 | 48 min | 14 Sep |
| Delhi | 20:26 → 18:42 | 11:53 | 0 min | 11:52 | 48 min | 14 Sep |
| Kolkata | 20:26 → 18:42 | 11:08 | 0 min | 11:08 | 48 min | 14 Sep |
| Singapore | 22:56 → 21:12 | 12:36 | 0 min | 12:36 | 48 min | 14 Sep |
| Sydney | 00:56 → 23:12 | 11:27 | 0 min | 11:27 | 48 min | 14 Sep |
| Suva | 02:56 → 01:12 | 11:38 | 0 min | 11:38 | 48 min | 14 Sep |