Day of Thursday 14 October
Qualifies with 37 of 680 minutes. Not taken.
06:10 sunrisesunset 17:30
Daśamī begins 16:52:51
05:4607:4609:4611:4613:4615:4617:46
37 of 680 minutes covered, the last 37
Ruling · Vijayā Daśamī (Daśaharā) · 2021
Boundaryin Tehran, under the Rashtriya Panchang method. Both days qualify and the rule does not say which to take. Say “contested”.
A tick is five ghaṭīs, two hours. The day time is sunrise to sunset.
Day of Thursday 14 October
Qualifies with 37 of 680 minutes. Not taken.
37 of 680 minutes covered, the last 37
Day of Friday 15 October
Taken. Both days qualify; the rule is silent, and this one is covered longer.
65 of 678 minutes covered, the first 65
Aṅga
Daśamī runs from 16:53 on Thu 14 Oct to 16:03 on Fri 15 Oct, and Śravaṇa from 07:35 on Thu 14 Oct to 07:16 on Fri 15 Oct. They are together from 16:53 on Thu 14 Oct to 07:16 on Fri 15 Oct.
2021-10-14T13:22:51Z → 2021-10-15T03:46:02Z
Kāla
The day time is sunrise to sunset: 06:10–17:30 on the 14th, 06:11–17:29 on the 15th.
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 37 of 680 minutes on the 14th and 65 of 678 on the 15th.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104
Tie-break
Both days qualify and the rule marks neither. The one covered longer is ruled, as a boundary.
priority: unstated → greater-coverage · margin 2223 s
Ruling
Vijayā Daśamī, Tehran, 2021: Friday 15 October.
confidence: boundary (tie-break-unstated)
In Tehran, Vijayā Daśamī (Dussehra) 2021 falls on Friday 15 October. Daśamī runs from 16:53 on Thu 14 Oct to 16:03 on Fri 15 Oct and is with Śravaṇa in the day time that day, for 65 minutes. They are together in the day time on the previous day too, for 37 minutes; the rule does not say which to take, and the day they share longer is ruled: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Fri 15 Oct |
| Ahargaṇa, classical | Disc centre, no refraction | Fri 15 Oct |
| compat-drikpanchang | Comparison profile | Fri 15 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 14th | Covered | Sunrise 15th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 06:23 → 20:46 | 06:58 | 681 min | 06:59 | 0 min | 14 Oct |
| Chicago | 08:23 → 22:46 | 07:02 | 587 min | 07:04 | 0 min | 14 Oct |
| Jersey City | 09:23 → 23:46 | 07:07 | 534 min | 07:08 | 0 min | 14 Oct |
| Port of Spain | 09:23 → 23:46 | 05:55 | 506 min | 05:55 | 0 min | 14 Oct |
| London | 14:23 → 04:46 | 07:23 | 226 min | 07:25 | 0 min | 14 Oct |
| Durban | 15:23 → 05:46 | 05:19 | 162 min | 05:18 | 28 min | 14 Oct |
| Dubai | 17:23 → 07:46 | 06:17 | 30 min | 06:17 | 89 min | 15 Oct |
| Delhi | 18:53 → 09:16 | 06:21 | 0 min | 06:22 | 174 min | 15 Oct |
| Kolkata | 18:53 → 09:16 | 05:33 | 0 min | 05:33 | 223 min | 15 Oct |
| Singapore | 21:23 → 11:46 | 06:48 | 0 min | 06:48 | 298 min | 15 Oct |
| Sydney | 00:23 → 14:46 | 06:16 | 0 min | 06:14 | 512 min | 15 Oct |
| Suva | 01:23 → 15:46 | 05:38 | 0 min | 05:38 | 608 min | 15 Oct |