Ruling · Govatsa Dvādaśī (Vasu Baras) · 1999

Thursday 4 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 581 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 Thursday 4 November

Taken. The only evening Dvādaśī reaches.

17:15 sunsetpradoṣa ends 19:04
16:5117:1517:3918:0318:2718:5119:15

109 of 109 minutes covered

Evening of Friday 5 November

Dvādaśī is absent from pradoṣa. Not taken.

17:14 sunsetpradoṣa ends 19:03
16:5017:1417:3818:0218:2618:5019:14

0 of 109 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 06:51 on Thu 4 Nov to 07:33 on Fri 5 Nov.

    1999-11-03T22:50:57Z → 1999-11-04T23:33:00Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:15–19:04 on the 4th, 17:14–19:03 on the 5th.

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

  3. 03

    Rule

    Dvādaśī must be present during pradoṣa. It covers 109 of 109 minutes on the 4th and 0 of 109 on the 5th.

    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 34861 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1999: Thursday 4 November.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1999 falls on Thursday 4 November. Dvādaśī runs from 06:51 on Thu 4 Nov to 07:33 on Fri 5 Nov and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1999/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 4 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 4 Nov
compat-drikpanchangComparison profileThu 4 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 3rdCoveredSunset 4thCoveredRuled
Los Angeles14:51 → 15:3316:58106 min16:570 min3 Nov
Chicago16:51 → 17:3316:43101 min16:4152 min3 Nov
Jersey City17:51 → 18:3316:5049 min16:49104 min3 Nov
Port of Spain18:51 → 19:3317:4129 min17:4198 min3 Nov
London22:51 → 23:3316:300 min16:29116 min4 Nov
Durban00:51 → 01:3318:190 min18:2085 min4 Nov
Dubai02:51 → 03:3317:370 min17:36103 min4 Nov
Delhi04:21 → 05:0317:350 min17:34104 min4 Nov
Kolkata04:21 → 05:0316:580 min16:58102 min4 Nov
Singapore06:51 → 07:3318:500 min18:5096 min4 Nov
Sydney09:51 → 10:3319:240 min19:2584 min4 Nov
Suva10:51 → 11:3318:130 min18:1490 min4 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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