Ruling · Govatsa Dvādaśī (Vasu Baras) · 2017

Monday 16 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 456 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 Sunday 15 October

Dvādaśī is absent from pradoṣa. Not taken.

17:40 sunsetpradoṣa ends 19:22
17:1617:4018:0418:2818:5219:1619:40

0 of 102 minutes covered

Evening of Monday 16 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

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 03:35 on Mon 16 Oct to 02:57 on Tue 17 Oct.

    2017-10-15T19:35:19Z → 2017-10-16T18:56:47Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:40–19:22 on the 15th, 17:38–19:21 on the 16th.

    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 102 minutes on the 15th and 103 of 103 on the 16th.

    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 27336 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 2017: Monday 16 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 2017 falls on Monday 16 October. Dvādaśī runs from 03:35 on Mon 16 Oct to 02:57 on Tue 17 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2017/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 16 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 16 Oct
compat-drikpanchangComparison profileMon 16 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 15thCoveredSunset 16thCoveredRuled
Los Angeles12:35 → 11:5718:18102 min18:170 min15 Oct
Chicago14:35 → 13:5718:08104 min18:070 min15 Oct
Jersey City15:35 → 14:5718:15103 min18:140 min15 Oct
Port of Spain15:35 → 14:5717:4897 min17:480 min15 Oct
London20:35 → 19:5718:070 min18:04107 min16 Oct
Durban21:35 → 20:5718:060 min18:0689 min16 Oct
Dubai23:35 → 22:5717:520 min17:51100 min16 Oct
Delhi01:05 → 00:2717:510 min17:50100 min16 Oct
Kolkata01:05 → 00:2717:110 min17:1099 min16 Oct
Singapore03:35 → 02:5718:530 min18:5295 min16 Oct
Sydney06:35 → 05:5719:080 min19:0988 min16 Oct
Suva07:35 → 06:5718:070 min18:0792 min16 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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