Ruling · Vijayā Daśamī (Daśaharā) · 1978

Wednesday 11 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 214 minutes.

Decide it for

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two days

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

Day of Wednesday 11 October

Taken. The only day Daśamī with Śravaṇa reaches.

05:51 sunrisesunset 17:02
05:2707:2709:2711:2713:2715:2717:27

671 of 671 minutes covered

Day of Thursday 12 October

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

05:53 sunrisesunset 17:00
05:2907:2909:2911:2913:2915:2917:29

0 of 667 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 02:17 on Wed 11 Oct to 23:59 on Wed 11 Oct, and Śravaṇa from 23:42 on Tue 10 Oct to 22:09 on Wed 11 Oct. They are together from 02:17 on Wed 11 Oct to 22:09 on Wed 11 Oct.

    1978-10-10T18:16:53Z → 1978-10-11T14:08:36Z

  2. 02

    Kāla

    The day time is sunrise to sunset: 05:51–17:02 on the 11th, 05:53–17:00 on the 12th.

    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 671 of 671 minutes on the 11th and 0 of 667 on the 12th.

    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 12860 s

  5. 05

    Ruling

    Vijayā Daśamī, Daqing, 1978: Wednesday 11 October.

    confidence: determinate

Say it like this

In Daqing, Vijayā Daśamī (Dussehra) 1978 falls on Wednesday 11 October. Daśamī runs from 02:17 on Wed 11 Oct to 23:59 on Wed 11 Oct and is with Śravaṇa in the day time that day, for 671 minutes.

ahargana.org/daqing/festivals/1978/vijaya-dashami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 11 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 11 Oct
compat-drikpanchangComparison profileWed 11 Oct
No institution has a recorded ruling for Daqing.

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 10thCoveredSunrise 11thCoveredRuled
Los Angeles11:17 → 07:0906:54428 min06:5514 min10 Oct
Chicago13:17 → 09:0906:57300 min06:58130 min10 Oct
Jersey City14:17 → 10:0907:02247 min07:03185 min10 Oct
Port of Spain14:17 → 10:0905:55214 min05:55254 min11 Oct
London19:17 → 15:0907:160 min07:17471 min11 Oct
Durban20:17 → 16:0905:250 min05:23645 min11 Oct
Dubai22:17 → 18:0906:150 min06:15701 min11 Oct
Delhi23:47 → 19:3906:190 min06:19697 min11 Oct
Kolkata23:47 → 19:3905:310 min05:31704 min11 Oct
Singapore01:47 → 21:3906:190 min06:19725 min11 Oct
Sydney04:17 → 00:0905:220 min05:20764 min11 Oct
Suva06:17 → 02:0905:420 min05:41709 min11 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