Ruling · Govatsa Dvādaśī (Vasu Baras) · 1908

Wednesday 21 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 427 minutes.

Decide it for

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 21 October

Taken. The only evening Dvādaśī reaches.

17:32 sunsetpradoṣa ends 19:16
17:0817:3217:5618:2018:4419:0819:32

104 of 104 minutes covered

Evening of Thursday 22 October

Dvādaśī is absent from pradoṣa. Not taken.

17:31 sunsetpradoṣa ends 19:15
17:0717:3117:5518:1918:4319:0719:31

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 08:08 on Wed 21 Oct to 10:24 on Thu 22 Oct.

    1908-10-21T00:08:19Z → 1908-10-22T02:23:40Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:32–19:16 on the 21st, 17:31–19:15 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 25633 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1908: Wednesday 21 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1908 falls on Wednesday 21 October. Dvādaśī runs from 08:08 on Wed 21 Oct to 10:24 on Thu 22 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1908/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 21 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 21 Oct
compat-drikpanchangComparison profileWed 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 Angeles16:08 → 18:2417:1272 min17:110 min20 Oct
Chicago18:08 → 20:2417:00105 min16:590 min20 Oct
Jersey City19:08 → 21:2417:07105 min17:060 min21 Oct
Port of Spain20:08 → 22:2417:4697 min17:450 min21 Oct
London00:08 → 02:2416:55109 min16:530 min21 Oct
Durban02:08 → 04:2418:0988 min18:100 min21 Oct
Dubai03:49 → 06:0517:28101 min17:270 min21 Oct
Delhi05:38 → 07:5417:46101 min17:450 min21 Oct
Kolkata05:38 → 07:5417:07100 min17:060 min21 Oct
Singapore07:08 → 09:2417:5295 min17:510 min21 Oct
Sydney10:08 → 12:2418:1387 min18:130 min21 Oct
Suva12:03 → 14:1918:0391 min18:040 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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