Ruling · Govatsa Dvādaśī (Vasu Baras) · 2013

Thursday 31 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 341 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 Wednesday 30 October

Dvādaśī is absent from pradoṣa. Not taken.

17:20 sunsetpradoṣa ends 19:07
16:5617:2017:4418:0818:3218:5619:20

0 of 107 minutes covered

Evening of Thursday 31 October

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

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 00:48 on Thu 31 Oct to 00:47 on Fri 1 Nov.

    2013-10-30T16:48:02Z → 2013-10-31T16:47:03Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:20–19:07 on the 30th, 17:19–19:06 on the 31st.

    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 107 minutes on the 30th and 108 of 108 on the 31st.

    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 20440 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 2013: Thursday 31 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 2013 falls on Thursday 31 October. Dvādaśī runs from 00:48 on Thu 31 Oct to 00:47 on Fri 1 Nov and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2013/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 31 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 31 Oct
compat-drikpanchangComparison profileThu 31 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 30thCoveredSunset 31stCoveredRuled
Los Angeles09:48 → 09:4718:01105 min18:000 min30 Oct
Chicago11:48 → 11:4717:47109 min17:450 min30 Oct
Jersey City12:48 → 12:4717:54108 min17:530 min30 Oct
Port of Spain12:48 → 12:4717:4298 min17:420 min30 Oct
London16:48 → 16:4716:37103 min16:3512 min30 Oct
Durban18:48 → 18:4718:1654 min18:1730 min30 Oct
Dubai20:48 → 20:4717:390 min17:39102 min31 Oct
Delhi22:18 → 22:1717:370 min17:36104 min31 Oct
Kolkata22:18 → 22:1717:000 min16:59102 min31 Oct
Singapore00:48 → 00:4718:500 min18:5095 min31 Oct
Sydney03:48 → 03:4719:210 min19:2284 min31 Oct
Suva05:48 → 05:4719:120 min19:1290 min31 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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