Ruling · Govatsa Dvādaśī (Vasu Baras) · 1945

Thursday 1 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 164 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 Wednesday 31 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 1 November

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

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 21:51 on Wed 31 Oct to 23:51 on Thu 1 Nov.

    1945-10-31T13:50:33Z → 1945-11-01T15:51:25Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:20–19:07 on the 31st, 17:18–19:06 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 0 of 107 minutes on the 31st and 108 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 9820 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1945: Thursday 1 November.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1945 falls on Thursday 1 November. Dvādaśī runs from 21:51 on Wed 31 Oct to 23:51 on Thu 1 Nov and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1945/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 1 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 1 Nov
compat-drikpanchangComparison profileThu 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 31stCoveredSunset 1stCoveredRuled
Los Angeles05:51 → 07:5117:01106 min17:000 min31 Oct
Chicago07:51 → 09:5116:46109 min16:450 min31 Oct
Jersey City08:51 → 10:5116:54108 min16:530 min31 Oct
Port of Spain09:51 → 11:5117:4298 min17:420 min31 Oct
London13:51 → 15:5116:36114 min16:340 min31 Oct
Durban15:51 → 17:5118:1786 min18:170 min31 Oct
Dubai17:51 → 19:5117:3991 min17:38102 min31 Oct
Delhi19:21 → 21:2117:370 min17:36104 min1 Nov
Kolkata19:21 → 21:2117:000 min16:59102 min1 Nov
Singapore21:21 → 23:2118:200 min18:2095 min1 Nov
Sydney23:51 → 01:5118:210 min18:2284 min1 Nov
Suva01:51 → 03:5118:120 min18:1390 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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