Day of Monday 10 October
Qualifies with 155 of 690 minutes. Not taken.
06:01 sunrisesunset 17:31
Daśamī begins 14:57:07
05:3707:3709:3711:3713:3715:3717:3719:37
155 of 690 minutes covered, the last 155
Ruling · Vijayā Daśamī (Dussehra) · 1921
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 Monday 10 October
Qualifies with 155 of 690 minutes. Not taken.
155 of 690 minutes covered, the last 155
Day of Tuesday 11 October
Taken. Both days qualify; the rule is silent, and this one is covered longer.
488 of 688 minutes covered, the first 488
Aṅga
Daśamī runs from 14:56 on Mon 10 Oct to 17:26 on Tue 11 Oct, and Śravaṇa from 11:12 on Mon 10 Oct to 14:10 on Tue 11 Oct. They are together from 14:56 on Mon 10 Oct to 14:10 on Tue 11 Oct.
1921-10-10T11:31:23Z → 1921-10-11T10:44:37Z
Kāla
The day time is sunrise to sunset: 06:01–17:31 on the 10th, 06:02–17:30 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 155 of 690 minutes on the 10th and 488 of 688 on the 11th.
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 9296 s
Ruling
Vijayā Daśamī, Tehran, 1921: Tuesday 11 October.
confidence: boundary (tie-break-unstated)
In Tehran, Vijayā Daśamī (Dussehra) 1921 falls on Tuesday 11 October. Daśamī runs from 14:56 on Mon 10 Oct to 17:26 on Tue 11 Oct and is with Śravaṇa in the day time that day, for 488 minutes. They are together in the day time on the previous day too, for 155 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 | Tue 11 Oct |
| Ahargaṇa, classical | Disc centre, no refraction | Tue 11 Oct |
| compat-drikpanchang | Comparison profile | Tue 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 | 03:31 → 02:45 | 05:54 | 691 min | 05:55 | 0 min | 10 Oct |
| Chicago | 06:31 → 05:45 | 06:57 | 681 min | 06:58 | 0 min | 10 Oct |
| Jersey City | 06:31 → 05:45 | 06:02 | 653 min | 06:03 | 0 min | 10 Oct |
| Port of Spain | 07:31 → 06:45 | 05:55 | 620 min | 05:55 | 50 min | 10 Oct |
| London | 11:31 → 10:45 | 06:15 | 348 min | 06:17 | 268 min | 10 Oct |
| Durban | 13:31 → 12:45 | 05:25 | 270 min | 05:24 | 441 min | 11 Oct |
| Dubai | 15:31 → 14:45 | 06:15 | 146 min | 06:15 | 510 min | 11 Oct |
| Delhi | 17:01 → 16:15 | 06:19 | 56 min | 06:19 | 595 min | 11 Oct |
| Kolkata | 17:01 → 16:15 | 05:31 | 15 min | 05:31 | 643 min | 11 Oct |
| Singapore | 18:31 → 17:45 | 05:49 | 0 min | 05:49 | 716 min | 11 Oct |
| Sydney | 21:31 → 20:45 | 05:22 | 0 min | 05:20 | 764 min | 11 Oct |
| Suva | 23:31 → 22:45 | 05:42 | 0 min | 05:41 | 744 min | 11 Oct |