Ruling · Govatsa Dvādaśī (Vasu Baras) · 1922

Tuesday 17 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 383 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 Tuesday 17 October

Taken. The only evening Dvādaśī reaches.

17:38 sunsetpradoṣa ends 19:21
17:1417:3818:0218:2618:5019:1419:38

103 of 103 minutes covered

Evening of Wednesday 18 October

Dvādaśī is absent from pradoṣa. Not taken.

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

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 11:15 on Tue 17 Oct to 08:12 on Wed 18 Oct.

    1922-10-17T03:15:26Z → 1922-10-18T00:11:52Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:38–19:21 on the 17th, 17:37–19:20 on the 18th.

    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 17th and 0 of 103 on the 18th.

    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 22975 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1922: Tuesday 17 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1922 falls on Tuesday 17 October. Dvādaśī runs from 11:15 on Tue 17 Oct to 08:12 on Wed 18 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1922/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 17 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 17 Oct
compat-drikpanchangComparison profileTue 17 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 17thCoveredSunset 18thCoveredRuled
Los Angeles19:15 → 16:1217:170 min17:160 min16 Oct
Chicago21:15 → 18:1217:0765 min17:050 min17 Oct
Jersey City22:15 → 19:1217:14104 min17:120 min17 Oct
Port of Spain23:15 → 20:1217:4897 min17:470 min17 Oct
London03:15 → 00:1217:04107 min17:020 min17 Oct
Durban05:15 → 02:1218:0689 min18:070 min17 Oct
Dubai07:15 → 04:1217:51100 min17:500 min17 Oct
Delhi08:45 → 05:4217:50100 min17:490 min17 Oct
Kolkata08:45 → 05:4217:1099 min17:090 min17 Oct
Singapore10:15 → 07:1217:5295 min17:520 min17 Oct
Sydney13:15 → 10:1218:0988 min18:100 min17 Oct
Suva15:15 → 12:1218:0792 min18:070 min17 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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