Day of Tuesday 10 October
Daśamī with Śravaṇa is absent from the day time. Not taken.
06:36 sunrisesunset 18:06
06:1208:1210:1212:1214:1216:1218:1220:12
0 of 690 minutes covered
Ruling · Vijayā Daśamī (Dussehra) · 1978
Boundaryin Tehran, under the Rashtriya Panchang method. A threshold is only 3 min 54 s away. Say “contested”.
A tick is five ghaṭīs, two hours. The day time is sunrise to sunset.
Day of Tuesday 10 October
Daśamī with Śravaṇa is absent from the day time. Not taken.
0 of 690 minutes covered
Day of Wednesday 11 October
Taken. The only day Daśamī with Śravaṇa reaches.
688 of 688 minutes covered
Aṅga
Daśamī runs from 22:17 on Tue 10 Oct to 19:59 on Wed 11 Oct, and Śravaṇa from 19:42 on Tue 10 Oct to 18:09 on Wed 11 Oct. They are together from 22:17 on Tue 10 Oct to 18:09 on Wed 11 Oct.
1978-10-10T18:16:53Z → 1978-10-11T14:08:36Z
Kāla
The day time is sunrise to sunset: 06:36–18:06 on the 10th, 06:37–18:05 on the 11th.
daytime: sunrise-to-sunset · sunrise and sunset: upper limb, 31′ + 16′
Rule
Where Daśamī touches Śravaṇa in the day time, that day is taken. Together they cover 0 of 690 minutes on the 10th and 688 of 688 on the 11th.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104
Tie-break
Only one day qualifies. No tie-break is needed.
priority: unstated → only-day · margin 234 s < 300 s
Ruling
Vijayā Daśamī, Tehran, 1978: Wednesday 11 October.
confidence: boundary (margin)
In Tehran, Vijayā Daśamī (Dussehra) 1978 falls on Wednesday 11 October. Daśamī runs from 22:17 on Tue 10 Oct to 19:59 on Wed 11 Oct and is with Śravaṇa in the day time that day, for 688 minutes. It is 3 min 54 s from a threshold: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Wed 11 Oct |
| Ahargaṇa, classical | Disc centre, no refraction | Wed 11 Oct |
| compat-drikpanchang | Comparison profile | Wed 11 Oct |
| No institution has a recorded ruling for Tehran. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/vijaya-dashami · ruleset 2026.3-draft
“S 10 Vijaya dasami (In Bengal it is observed as paraviddha, covering one muhurta from sunrise. In other places, if it touches Sravana naksatra in the day time it is observed on that day), Sarasvati visarjana (to be observed in naksatra Sravana), Dasahara.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104. The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.
Twelve places, west to east. Local clock times.
| Place | Daśamī with Śravaṇa | Sunrise 10th | Covered | Sunrise 11th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 11:17 → 07:09 | 06:54 | 428 min | 06:55 | 14 min | 10 Oct |
| Chicago | 13:17 → 09:09 | 06:57 | 300 min | 06:58 | 130 min | 10 Oct |
| Jersey City | 14:17 → 10:09 | 07:02 | 247 min | 07:03 | 185 min | 10 Oct |
| Port of Spain | 14:17 → 10:09 | 05:55 | 214 min | 05:55 | 254 min | 11 Oct |
| London | 19:17 → 15:09 | 07:16 | 0 min | 07:17 | 471 min | 11 Oct |
| Durban | 20:17 → 16:09 | 05:25 | 0 min | 05:23 | 645 min | 11 Oct |
| Dubai | 22:17 → 18:09 | 06:15 | 0 min | 06:15 | 701 min | 11 Oct |
| Delhi | 23:47 → 19:39 | 06:19 | 0 min | 06:19 | 697 min | 11 Oct |
| Kolkata | 23:47 → 19:39 | 05:31 | 0 min | 05:31 | 704 min | 11 Oct |
| Singapore | 01:47 → 21:39 | 06:19 | 0 min | 06:19 | 725 min | 11 Oct |
| Sydney | 04:17 → 00:09 | 05:22 | 0 min | 05:20 | 764 min | 11 Oct |
| Suva | 06:17 → 02:09 | 05:42 | 0 min | 05:41 | 709 min | 11 Oct |