Ruling · Vijayā Daśamī (Daśaharā) · 1977

Friday 21 October

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 4 min 46 s away. Say “contested”.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two days

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

Day of Thursday 20 October

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

06:32 sunrisesunset 17:33
06:0808:0810:0812:0814:0816:0818:08

0 of 661 minutes covered

Day of Friday 21 October

Taken. The only day Daśamī with Śravaṇa reaches.

06:33 sunrisesunset 17:32
Daśamī begins 06:28:35Śravaṇa ends 09:03:08
06:0908:0910:0912:0914:0916:0918:09

150 of 659 minutes covered, the first 150

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 06:29 on Fri 21 Oct to 05:31 on Sat 22 Oct, and Śravaṇa from 09:44 on Thu 20 Oct to 09:03 on Fri 21 Oct. They are together from 06:29 on Fri 21 Oct to 09:03 on Fri 21 Oct.

    1977-10-20T22:28:36Z → 1977-10-21T01:03:08Z

  2. 02

    Kāla

    The day time is sunrise to sunset: 06:32–17:33 on the 20th, 06:33–17:32 on the 21st.

    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 661 minutes on the 20th and 150 of 659 on the 21st.

    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 286 s < 300 s

  5. 05

    Ruling

    Vijayā Daśamī, Baoding, 1977: Friday 21 October.

    confidence: boundary (margin)

Say it like this

In Baoding, Vijayā Daśamī (Dussehra) 1977 falls on Friday 21 October. Daśamī runs from 06:29 on Fri 21 Oct to 05:31 on Sat 22 Oct and is with Śravaṇa in the day time that day, for 150 minutes. It is 4 min 46 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/1977/vijaya-dashami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 21 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 21 Oct
compat-drikpanchangComparison profileFri 21 Oct
No institution has a recorded ruling for Baoding.

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 20thCoveredSunrise 21stCoveredRuled
Los Angeles15:29 → 18:0307:03155 min07:030 min20 Oct
Chicago17:29 → 20:0307:0933 min07:100 min20 Oct
Jersey City18:29 → 21:0307:130 min07:140 min21 Oct
Port of Spain18:29 → 21:0305:560 min05:560 min21 Oct
London23:29 → 02:0307:330 min07:350 min21 Oct
Durban00:29 → 03:0305:130 min05:120 min21 Oct
Dubai02:29 → 05:0306:200 min06:200 min21 Oct
Delhi03:59 → 06:3306:250 min06:267 min21 Oct
Kolkata03:59 → 06:3305:350 min05:3657 min21 Oct
Singapore05:59 → 08:3306:170 min06:17136 min21 Oct
Sydney08:29 → 11:0305:090 min05:08155 min21 Oct
Suva10:29 → 13:0305:350 min05:34155 min21 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