Ruling · Vijayā Daśamī (Dussehra) · 2049

Wednesday 6 October

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 101 minutes.

Decide it for

35°42′ N 51°25′ E · Asia/Tehran · GeoNames 112931

The two days

A tick is five ghaṭīs, two hours. The day time is sunrise to sunset.

Day of Tuesday 5 October

Daśamī with Śravaṇa is absent from the day time. Not taken.

06:03 sunrisesunset 17:42
05:3907:3909:3911:3913:3915:3917:3919:39

0 of 699 minutes covered

Day of Wednesday 6 October

Taken. The only day Daśamī with Śravaṇa reaches.

06:04 sunrisesunset 17:41
Daśamī ends 19:21:39
05:4007:4009:4011:4013:4015:4017:4019:40

697 of 697 minutes covered

Daśamī and Śravaṇa togetherThe day time, the window the rule readsThe instant they come together or part

How it was decided

  1. 01

    Aṅga

    Daśamī runs from 21:53 on Tue 5 Oct to 19:22 on Wed 6 Oct, and Śravaṇa from 03:54 on Wed 6 Oct to 02:04 on Thu 7 Oct. They are together from 03:54 on Wed 6 Oct to 19:22 on Wed 6 Oct.

    2049-10-06T00:24:10Z → 2049-10-06T15:51:40Z

  2. 02

    Kāla

    The day time is sunrise to sunset: 06:03–17:42 on the 5th, 06:04–17:41 on the 6th.

    daytime: sunrise-to-sunset · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Where Daśamī touches Śravaṇa in the day time, that day is taken. Together they cover 0 of 699 minutes on the 5th and 697 of 697 on the 6th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one day qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 6067 s

  5. 05

    Ruling

    Vijayā Daśamī, Tehran, 2049: Wednesday 6 October.

    confidence: determinate

Say it like this

In Tehran, Vijayā Daśamī (Dussehra) 2049 falls on Wednesday 6 October. Daśamī runs from 21:53 on Tue 5 Oct to 19:22 on Wed 6 Oct and is with Śravaṇa in the day time that day, for 697 minutes.

ahargana.org/tehran/festivals/2049/vijaya-dashami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 6 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 6 Oct
compat-drikpanchangComparison profileWed 6 Oct
No institution has a recorded ruling for Tehran.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/vijaya-dashami · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Śukla · Daśamī
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
First
With Śravaṇa in the day time

“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.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDaśamī with ŚravaṇaSunrise 6thCoveredSunrise 7thCoveredRuled
Los Angeles17:24 → 08:5206:52120 min06:530 min6 Oct
Chicago19:24 → 10:5206:54238 min06:550 min6 Oct
Jersey City20:24 → 11:5206:59293 min07:000 min6 Oct
Port of Spain20:24 → 11:5205:55357 min05:550 min6 Oct
London01:24 → 16:5207:10581 min07:120 min6 Oct
Durban02:24 → 17:5205:28743 min05:270 min6 Oct
Dubai04:24 → 19:5206:13707 min06:140 min6 Oct
Delhi05:54 → 21:2206:17704 min06:180 min6 Oct
Kolkata05:54 → 21:2205:30685 min05:300 min6 Oct
Singapore08:24 → 23:5206:50631 min06:500 min6 Oct
Sydney11:24 → 02:5206:26457 min06:240 min6 Oct
Suva12:24 → 03:5205:45341 min05:440 min6 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
vijaya-dashami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa