Ruling · Govatsa Dvādaśī (Vasu Baras) · 2071

Tuesday 20 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 11 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 Monday 19 October

Dvādaśī is absent from pradoṣa. Not taken.

17:34 sunsetpradoṣa ends 19:18
17:1017:3417:5818:2218:4619:1019:34

0 of 104 minutes covered

Evening of Tuesday 20 October

Taken. The only evening Dvādaśī reaches.

17:33 sunsetpradoṣa ends 19:17
Dvādaśī ends 17:44:02
17:0917:3317:5718:2118:4519:0919:33

11 of 104 minutes covered, the first 11

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 19:49 on Mon 19 Oct to 17:44 on Tue 20 Oct.

    2071-10-19T11:49:21Z → 2071-10-20T09:44:02Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:34–19:18 on the 19th, 17:33–19:17 on the 20th.

    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 104 minutes on the 19th and 11 of 104 on the 20th.

    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 659 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 2071: Tuesday 20 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 2071 falls on Tuesday 20 October. Dvādaśī runs from 19:49 on Mon 19 Oct to 17:44 on Tue 20 Oct and covers 11 of 104 minutes of pradoṣa that evening.

ahargana.org/baoding/festivals/2071/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 20 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 20 Oct
compat-drikpanchangComparison profileMon 19 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 19thCoveredSunset 20thCoveredRuled
Los Angeles04:49 → 02:4418:14103 min18:120 min19 Oct
Chicago06:49 → 04:4418:03105 min18:010 min19 Oct
Jersey City07:49 → 05:4418:10105 min18:080 min19 Oct
Port of Spain07:49 → 05:4417:4797 min17:460 min19 Oct
London12:49 → 10:4417:59109 min17:560 min19 Oct
Durban13:49 → 11:4418:0889 min18:090 min19 Oct
Dubai15:49 → 13:4417:48100 min17:470 min19 Oct
Delhi17:19 → 15:1417:47101 min17:460 min19 Oct
Kolkata17:19 → 15:1417:0888 min17:070 min19 Oct
Singapore19:49 → 17:4418:5238 min18:520 min19 Oct
Sydney22:49 → 20:4419:110 min19:1287 min20 Oct
Suva23:49 → 21:4418:080 min18:0891 min20 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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