Ruling · Govatsa Dvādaśī (Vasu Baras) · 1978

Saturday 28 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 536 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 Friday 27 October

Dvādaśī is absent from pradoṣa. Not taken.

17:24 sunsetpradoṣa ends 19:10
17:0017:2417:4818:1218:3619:0019:24

0 of 106 minutes covered

Evening of Saturday 28 October

Taken. The only evening Dvādaśī reaches.

17:23 sunsetpradoṣa ends 19:10
16:5917:2317:4718:1118:3518:5919:23

106 of 106 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 04:07 on Sat 28 Oct to 05:08 on Sun 29 Oct.

    1978-10-27T20:06:37Z → 1978-10-28T21:07:38Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:24–19:10 on the 27th, 17:23–19:10 on the 28th.

    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 106 minutes on the 27th and 106 of 106 on the 28th.

    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 32168 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1978: Saturday 28 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1978 falls on Saturday 28 October. Dvādaśī runs from 04:07 on Sat 28 Oct to 05:08 on Sun 29 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1978/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 28 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 28 Oct
compat-drikpanchangComparison profileSat 28 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 27thCoveredSunset 28thCoveredRuled
Los Angeles13:07 → 14:0818:05105 min18:040 min27 Oct
Chicago15:07 → 16:0817:51108 min17:500 min27 Oct
Jersey City16:07 → 17:0817:59107 min17:580 min27 Oct
Port of Spain16:07 → 17:0817:4398 min17:430 min27 Oct
London21:07 → 22:0817:430 min17:41113 min28 Oct
Durban22:07 → 23:0818:140 min18:1487 min28 Oct
Dubai00:07 → 01:0817:420 min17:41102 min28 Oct
Delhi01:37 → 02:3817:400 min17:39103 min28 Oct
Kolkata01:37 → 02:3817:020 min17:02101 min28 Oct
Singapore03:37 → 04:3818:210 min18:2095 min28 Oct
Sydney06:07 → 08:0818:180 min18:1985 min28 Oct
Suva08:07 → 09:0818:110 min18:1190 min28 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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