Ruling · Govatsa Dvādaśī (Vasu Baras) · 1983

Tuesday 1 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 116 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 Tuesday 1 November

Taken. The only evening Dvādaśī reaches.

17:19 sunsetpradoṣa ends 19:06
16:5517:1917:4318:0718:3118:5519:19

108 of 108 minutes covered

Evening of Wednesday 2 November

Dvādaśī is absent from pradoṣa. Not taken.

17:17 sunsetpradoṣa ends 19:05
16:5317:1717:4118:0518:2918:5319:17

0 of 108 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 15:22 on Tue 1 Nov to 12:49 on Wed 2 Nov.

    1983-11-01T07:22:06Z → 1983-11-02T04:49:19Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:19–19:06 on the 1st, 17:17–19:05 on the 2nd.

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

  3. 03

    Rule

    Dvādaśī must be present during pradoṣa. It covers 108 of 108 minutes on the 1st and 0 of 108 on the 2nd.

    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 6987 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1983: Tuesday 1 November.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1983 falls on Tuesday 1 November. Dvādaśī runs from 15:22 on Tue 1 Nov to 12:49 on Wed 2 Nov and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1983/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 1 Nov
Ahargaṇa, classicalDisc centre, no refractionTue 1 Nov
compat-drikpanchangComparison profileTue 1 Nov
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 1stCoveredSunset 2ndCoveredRuled
Los Angeles23:22 → 20:4917:00106 min16:590 min1 Nov
Chicago01:22 → 22:4916:45109 min16:440 min1 Nov
Jersey City02:22 → 23:4916:53109 min16:520 min1 Nov
Port of Spain03:22 → 00:4917:4298 min17:420 min1 Nov
London07:22 → 04:4916:34115 min16:320 min1 Nov
Durban09:22 → 06:4918:1786 min18:180 min1 Nov
Dubai11:22 → 08:4917:38102 min17:380 min1 Nov
Delhi12:52 → 10:1917:36104 min17:360 min1 Nov
Kolkata12:52 → 10:1916:59102 min16:590 min1 Nov
Singapore15:22 → 12:4918:5095 min18:500 min1 Nov
Sydney18:22 → 15:4919:2284 min19:230 min1 Nov
Suva19:22 → 16:4918:1220 min18:130 min1 Nov
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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