Ruling · Govatsa Dvādaśī (Vasu Baras) · 1963

Sunday 13 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 115 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 13 October

Taken. The only evening Dvādaśī reaches.

17:44 sunsetpradoṣa ends 19:26
17:2017:4418:0818:3218:5619:2019:44

102 of 102 minutes covered

Evening of Monday 14 October

Dvādaśī is absent from pradoṣa. Not taken.

17:43 sunsetpradoṣa ends 19:24
17:1917:4318:0718:3118:5519:1919:43

0 of 102 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 14:52 on Sun 13 Oct to 15:48 on Mon 14 Oct.

    1963-10-13T06:52:11Z → 1963-10-14T07:47:33Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:44–19:26 on the 13th, 17:43–19:24 on the 14th.

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

  3. 03

    Rule

    Dvādaśī must be present during pradoṣa. It covers 102 of 102 minutes on the 13th and 0 of 102 on the 14th.

    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 6902 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Baoding, 1963: Sunday 13 October.

    confidence: determinate

Say it like this

In Baoding, Govatsa Dvādaśī (Vasu Baras) 1963 falls on Sunday 13 October. Dvādaśī runs from 14:52 on Sun 13 Oct to 15:48 on Mon 14 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1963/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 13 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 13 Oct
compat-drikpanchangComparison profileSun 13 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 13thCoveredSunset 14thCoveredRuled
Los Angeles23:52 → 00:4818:22101 min18:210 min13 Oct
Chicago01:52 → 02:4818:13102 min18:110 min13 Oct
Jersey City02:52 → 03:4818:20102 min18:180 min13 Oct
Port of Spain02:52 → 03:4817:5097 min17:490 min13 Oct
London07:52 → 08:4818:13105 min18:110 min13 Oct
Durban08:52 → 09:4818:0490 min18:040 min13 Oct
Dubai10:52 → 11:4817:5499 min17:530 min13 Oct
Delhi12:22 → 13:1817:54100 min17:530 min13 Oct
Kolkata12:22 → 13:1817:1499 min17:130 min13 Oct
Singapore14:22 → 15:1818:2395 min18:230 min13 Oct
Sydney16:52 → 17:4818:0689 min18:070 min13 Oct
Suva18:52 → 19:4818:0646 min18:0692 min13 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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