Ruling · Govatsa Dvādaśī (Vasu Baras) · 1911

Wednesday 18 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 233 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 Wednesday 18 October

Taken. The only evening Dvādaśī reaches.

17:37 sunsetpradoṣa ends 19:20
17:1317:3718:0118:2518:4919:1319:37

103 of 103 minutes covered

Evening of Thursday 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

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 13:45 on Wed 18 Oct to 12:43 on Thu 19 Oct.

    1911-10-18T05:44:44Z → 1911-10-19T04:42:49Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:37–19:20 on the 18th, 17:36–19:19 on the 19th.

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

  3. 03

    Rule

    Dvādaśī must be present during pradoṣa. It covers 103 of 103 minutes on the 18th and 0 of 103 on the 19th.

    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 13960 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1911: Wednesday 18 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1911 falls on Wednesday 18 October. Dvādaśī runs from 13:45 on Wed 18 Oct to 12:43 on Thu 19 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1911/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 18 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 18 Oct
compat-drikpanchangComparison profileWed 18 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 18thCoveredSunset 19thCoveredRuled
Los Angeles21:45 → 20:4317:16102 min17:150 min18 Oct
Chicago23:45 → 22:4317:06104 min17:040 min18 Oct
Jersey City00:45 → 23:4317:13104 min17:110 min18 Oct
Port of Spain01:45 → 00:4317:4797 min17:470 min18 Oct
London05:45 → 04:4317:03108 min17:010 min18 Oct
Durban07:45 → 06:4318:0789 min18:070 min18 Oct
Dubai09:26 → 08:2417:31100 min17:300 min18 Oct
Delhi11:15 → 10:1317:50101 min17:490 min18 Oct
Kolkata11:15 → 10:1317:1099 min17:090 min18 Oct
Singapore12:45 → 11:4317:5295 min17:520 min18 Oct
Sydney15:45 → 14:4318:1088 min18:100 min18 Oct
Suva17:40 → 16:3818:0292 min18:030 min18 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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