Ruling · Govatsa Dvādaśī (Vasu Baras) · 1984

Sunday 21 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 444 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Sunday 21 October

Taken. The only evening Dvādaśī reaches.

17:31 sunsetpradoṣa ends 19:16
17:0717:3117:5518:1918:4319:0719:31

104 of 104 minutes covered

Evening of Monday 22 October

Dvādaśī is absent from pradoṣa. Not taken.

17:30 sunsetpradoṣa ends 19:15
17:0617:3017:5418:1818:4219:0619:30

0 of 105 minutes covered

Dvādaśī presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 10:07 on Sun 21 Oct to 06:54 on Mon 22 Oct.

    1984-10-21T02:07:21Z → 1984-10-21T22:53:46Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:31–19:16 on the 21st, 17:30–19:15 on the 22nd.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Dvādaśī must be present during pradoṣa. It covers 104 of 104 minutes on the 21st and 0 of 105 on the 22nd.

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

  4. 04

    Tie-break

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

    priority: purvaviddha → only-day · margin 26644 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1984: Sunday 21 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1984 falls on Sunday 21 October. Dvādaśī runs from 10:07 on Sun 21 Oct to 06:54 on Mon 22 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1984/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 21 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 21 Oct
compat-drikpanchangComparison profileSun 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/govatsa-dvadashi · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Kṛṣṇa · Dvādaśī
Kāla
Pradoṣa
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 104

“K 12 Govatsa dvadasi (pradosa vyapini). If occurs on two days, it is to be observed on the first day.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDvādaśīSunset 21stCoveredSunset 22ndCoveredRuled
Los Angeles19:07 → 15:5418:110 min18:100 min20 Oct
Chicago21:07 → 17:5417:590 min17:580 min20 Oct
Jersey City22:07 → 18:5418:0747 min18:050 min21 Oct
Port of Spain22:07 → 18:5417:4568 min17:450 min21 Oct
London03:07 → 23:5417:54110 min17:520 min21 Oct
Durban04:07 → 00:5418:1088 min18:100 min21 Oct
Dubai06:07 → 02:5417:46101 min17:450 min21 Oct
Delhi07:37 → 04:2417:45101 min17:440 min21 Oct
Kolkata07:37 → 04:2417:06100 min17:060 min21 Oct
Singapore10:07 → 06:5418:5195 min18:510 min21 Oct
Sydney12:07 → 08:5418:1387 min18:140 min21 Oct
Suva14:07 → 10:5418:0991 min18:090 min21 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
govatsa-dvadashi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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