Ruling · Govatsa Dvādaśī (Vasu Baras) · 2051

Monday 30 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 139 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 Monday 30 October

Taken. The only evening Dvādaśī reaches.

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

107 of 107 minutes covered

Evening of Tuesday 31 October

Dvādaśī is absent from pradoṣa. Not taken.

17:19 sunsetpradoṣa ends 19:07
16:5517:1917:4318:0718:3118:5519:19

0 of 107 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 12:41 on Mon 30 Oct to 15:00 on Tue 31 Oct.

    2051-10-30T04:40:34Z → 2051-10-31T07:00:22Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:20–19:07 on the 30th, 17:19–19:07 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 107 of 107 minutes on the 30th and 0 of 107 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 8327 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 2051: Monday 30 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 2051 falls on Monday 30 October. Dvādaśī runs from 12:41 on Mon 30 Oct to 15:00 on Tue 31 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2051/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 30 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 30 Oct
compat-drikpanchangComparison profileMon 30 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 Angeles21:41 → 00:0018:02105 min18:010 min30 Oct
Chicago23:41 → 02:0017:47109 min17:460 min30 Oct
Jersey City00:41 → 03:0017:55108 min17:540 min30 Oct
Port of Spain00:41 → 03:0017:4298 min17:420 min30 Oct
London04:41 → 07:0016:37114 min16:350 min30 Oct
Durban06:41 → 09:0018:1686 min18:170 min30 Oct
Dubai08:41 → 11:0017:39102 min17:390 min30 Oct
Delhi10:11 → 12:3017:37103 min17:370 min30 Oct
Kolkata10:11 → 12:3017:00101 min17:000 min30 Oct
Singapore12:41 → 15:0018:5095 min18:500 min30 Oct
Sydney15:41 → 18:0019:2185 min19:220 min30 Oct
Suva16:41 → 19:0018:1290 min18:1248 min30 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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