Ruling · Govatsa Dvādaśī (Vasu Baras) · 2097

Thursday 31 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 405 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 Thursday 31 October

Taken. The only evening Dvādaśī reaches.

17:18 sunsetpradoṣa ends 19:06
16:5417:1817:4218:0618:3018:5419:18

108 of 108 minutes covered

Evening of Friday 1 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 10:34 on Thu 31 Oct to 09:49 on Fri 1 Nov.

    2097-10-31T02:33:53Z → 2097-11-01T01:49:25Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:18–19:06 on the 31st, 17:17–19:05 on the 1st.

    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 31st and 0 of 108 on the 1st.

    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 24275 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 2097: Thursday 31 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 2097 falls on Thursday 31 October. Dvādaśī runs from 10:34 on Thu 31 Oct to 09:49 on Fri 1 Nov and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2097/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 31stCoveredSunset 1stCoveredRuled
Los Angeles19:34 → 18:4918:0049 min17:590 min30 Oct
Chicago21:34 → 20:4917:45109 min17:440 min31 Oct
Jersey City22:34 → 21:4917:53109 min17:520 min31 Oct
Port of Spain22:34 → 21:4917:4298 min17:420 min31 Oct
London02:34 → 01:4916:34115 min16:320 min31 Oct
Durban04:34 → 03:4918:1886 min18:180 min31 Oct
Dubai06:34 → 05:4917:38102 min17:380 min31 Oct
Delhi08:04 → 07:1917:36104 min17:360 min31 Oct
Kolkata08:04 → 07:1916:59102 min16:590 min31 Oct
Singapore10:34 → 09:4918:5095 min18:500 min31 Oct
Sydney13:34 → 12:4919:2384 min19:240 min31 Oct
Suva14:34 → 13:4918:1390 min18:130 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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