Ruling · Govatsa Dvādaśī (Vasu Baras) · 1905

Wednesday 25 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 400 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 Tuesday 24 October

Dvādaśī is absent from pradoṣa. Not taken.

17:29 sunsetpradoṣa ends 19:14
17:0517:2917:5318:1718:4119:0519:29

0 of 105 minutes covered

Evening of Wednesday 25 October

Taken. The only evening Dvādaśī reaches.

17:27 sunsetpradoṣa ends 19:13
17:0317:2717:5118:1518:3919:0319:27

105 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 04:40 on Wed 25 Oct to 01:52 on Thu 26 Oct.

    1905-10-24T20:40:01Z → 1905-10-25T17:52:21Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:29–19:14 on the 24th, 17:27–19:13 on the 25th.

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

  3. 03

    Rule

    Dvādaśī must be present during pradoṣa. It covers 0 of 105 minutes on the 24th and 105 of 105 on the 25th.

    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 23978 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1905: Wednesday 25 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1905 falls on Wednesday 25 October. Dvādaśī runs from 04:40 on Wed 25 Oct to 01:52 on Thu 26 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1905/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 24thCoveredSunset 25thCoveredRuled
Los Angeles12:40 → 09:5217:09104 min17:080 min24 Oct
Chicago14:40 → 11:5216:56106 min16:550 min24 Oct
Jersey City15:40 → 12:5217:04106 min17:020 min24 Oct
Port of Spain16:40 → 13:5217:4598 min17:440 min24 Oct
London20:40 → 17:5216:500 min16:4865 min25 Oct
Durban22:40 → 19:5218:110 min18:1287 min25 Oct
Dubai00:21 → 21:3317:250 min17:25101 min25 Oct
Delhi02:01 → 23:1317:340 min17:33102 min25 Oct
Kolkata02:01 → 23:1316:560 min16:55100 min25 Oct
Singapore03:40 → 00:5217:510 min17:5195 min25 Oct
Sydney06:40 → 03:5218:150 min18:1686 min25 Oct
Suva08:35 → 05:4718:040 min18:0591 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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