Ruling · Govatsa Dvādaśī (Vasu Baras) · 1989

Wednesday 25 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 92 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 Wednesday 25 October

Taken. The only evening Dvādaśī reaches.

17:26 sunsetpradoṣa ends 19:12
17:0217:2617:5018:1418:3819:0219:26

106 of 106 minutes covered

Evening of Thursday 26 October

Dvādaśī is absent from pradoṣa. Not taken.

17:25 sunsetpradoṣa ends 19:11
17:0117:2517:4918:1318:3719:0119:25

0 of 106 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 13:35 on Wed 25 Oct to 15:53 on Thu 26 Oct.

    1989-10-25T05:35:21Z → 1989-10-26T07:53:00Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:26–19:12 on the 25th, 17:25–19:11 on the 26th.

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

  3. 03

    Rule

    Dvādaśī must be present during pradoṣa. It covers 106 of 106 minutes on the 25th and 0 of 106 on the 26th.

    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 5529 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1989: Wednesday 25 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1989 falls on Wednesday 25 October. Dvādaśī runs from 13:35 on Wed 25 Oct to 15:53 on Thu 26 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1989/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 25 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 25 Oct
compat-drikpanchangComparison profileWed 25 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 25thCoveredSunset 26thCoveredRuled
Los Angeles22:35 → 00:5318:07104 min18:060 min25 Oct
Chicago00:35 → 02:5317:54107 min17:520 min25 Oct
Jersey City01:35 → 03:5318:01107 min18:000 min25 Oct
Port of Spain01:35 → 03:5317:4498 min17:440 min25 Oct
London06:35 → 08:5317:46112 min17:450 min25 Oct
Durban07:35 → 09:5318:1287 min18:130 min25 Oct
Dubai09:35 → 11:5317:43101 min17:420 min25 Oct
Delhi11:05 → 13:2317:42102 min17:410 min25 Oct
Kolkata11:05 → 13:2317:04101 min17:030 min25 Oct
Singapore13:35 → 15:5318:5195 min18:510 min25 Oct
Sydney15:35 → 17:5318:1686 min18:170 min25 Oct
Suva17:35 → 19:5318:1091 min18:1091 min25 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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