Ruling · Govatsa Dvādaśī (Vasu Baras) · 1973

Monday 22 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 269 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 22 October

Taken. The only evening Dvādaśī reaches.

17:31 sunsetpradoṣa ends 19:15
17:0717:3117:5518:1918:4319:0719:31

105 of 105 minutes covered

Evening of Tuesday 23 October

Dvādaśī is absent from pradoṣa. Not taken.

17:29 sunsetpradoṣa ends 19:14
17:0517:2917:5318:1718:4119:0519:29

0 of 105 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 13:01 on Mon 22 Oct to 12:00 on Tue 23 Oct.

    1973-10-22T05:01:03Z → 1973-10-23T04:00:29Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:31–19:15 on the 22nd, 17:29–19:14 on the 23rd.

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

  3. 03

    Rule

    Dvādaśī must be present during pradoṣa. It covers 105 of 105 minutes on the 22nd and 0 of 105 on the 23rd.

    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 16168 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1973: Monday 22 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1973 falls on Monday 22 October. Dvādaśī runs from 13:01 on Mon 22 Oct to 12:00 on Tue 23 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1973/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 22 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 22 Oct
compat-drikpanchangComparison profileMon 22 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 22ndCoveredSunset 23rdCoveredRuled
Los Angeles22:01 → 21:0018:10103 min18:090 min22 Oct
Chicago00:01 → 23:0017:58106 min17:570 min22 Oct
Jersey City01:01 → 00:0018:06105 min18:040 min22 Oct
Port of Spain01:01 → 00:0017:4597 min17:450 min22 Oct
London06:01 → 05:0017:53110 min17:510 min22 Oct
Durban07:01 → 06:0018:1088 min18:110 min22 Oct
Dubai09:01 → 08:0017:46101 min17:450 min22 Oct
Delhi10:31 → 09:3017:45102 min17:440 min22 Oct
Kolkata10:31 → 09:3017:06100 min17:050 min22 Oct
Singapore12:31 → 11:3018:2195 min18:210 min22 Oct
Sydney15:01 → 14:0018:1487 min18:150 min22 Oct
Suva17:01 → 16:0018:0991 min18:090 min22 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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