Ruling · Govatsa Dvādaśī (Vasu Baras) · 1919

Monday 20 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 244 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 Sunday 19 October

Dvādaśī is absent from pradoṣa. Not taken.

17:36 sunsetpradoṣa ends 19:19
17:1217:3618:0018:2418:4819:1219:36

0 of 103 minutes covered

Evening of Monday 20 October

Taken. The only evening Dvādaśī reaches.

17:35 sunsetpradoṣa ends 19:18
17:1117:3517:5918:2318:4719:1119:35

104 of 104 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 23:23 on Sun 19 Oct to 00:02 on Tue 21 Oct.

    1919-10-19T15:23:20Z → 1919-10-20T16:02:10Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:36–19:19 on the 19th, 17:35–19:18 on the 20th.

    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 103 minutes on the 19th and 104 of 104 on the 20th.

    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 14642 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1919: Monday 20 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1919 falls on Monday 20 October. Dvādaśī runs from 23:23 on Sun 19 Oct to 00:02 on Tue 21 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1919/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 20 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 20 Oct
compat-drikpanchangComparison profileMon 20 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 19thCoveredSunset 20thCoveredRuled
Los Angeles08:23 → 09:0218:15102 min18:140 min19 Oct
Chicago10:23 → 11:0218:04104 min18:030 min19 Oct
Jersey City11:23 → 12:0218:11104 min18:100 min19 Oct
Port of Spain11:23 → 12:0217:4797 min17:460 min19 Oct
London15:23 → 16:0217:01108 min16:590 min19 Oct
Durban17:23 → 18:0218:0789 min18:080 min19 Oct
Dubai19:04 → 19:4317:306 min17:29100 min19 Oct
Delhi20:53 → 21:3217:480 min17:47101 min20 Oct
Kolkata20:53 → 21:3217:090 min17:08100 min20 Oct
Singapore22:23 → 23:0217:520 min17:5295 min20 Oct
Sydney01:23 → 02:0218:100 min18:1188 min20 Oct
Suva03:23 → 04:0218:080 min18:0892 min20 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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