Ruling · Govatsa Dvādaśī (Vasu Baras) · 2025

Friday 17 October

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 339 minutes.

Decide it for

UjjainDelhiKolkataSingaporeSydneyJersey City

23°11′ N 75°47′ E · Asia/Kolkata · GeoNames 1253914

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Friday 17 October

Taken. The only evening Dvādaśī reaches.

17:59 sunsetpradoṣa ends 19:39
17:3517:5918:2318:4719:1119:3519:59

99 of 99 minutes covered

Evening of Saturday 18 October

Dvādaśī is absent from pradoṣa. Not taken.

17:58 sunsetpradoṣa ends 19:38
17:3417:5818:2218:4619:1019:3419:58

0 of 100 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 11:13 on Fri 17 Oct to 12:20 on Sat 18 Oct.

    2025-10-17T05:42:43Z → 2025-10-18T06:49:41Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:59–19:39 on the 17th, 17:58–19:38 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 99 of 99 minutes on the 17th and 0 of 100 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 20326 s

  5. 05

    Ruling

    Govatsa Dvādaśī, Ujjain, 2025: Friday 17 October.

    confidence: determinate

Say it like this

In Ujjain, Govatsa Dvādaśī (Vasu Baras) 2025 falls on Friday 17 October. Dvādaśī runs from 11:13 on Fri 17 Oct to 12:20 on Sat 18 Oct and covers all of pradoṣa that evening.

ahargana.org/ujjain/festivals/2025/govatsa-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 17 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 17 Oct
compat-drikpanchangComparison profileFri 17 Oct
No institution has a recorded ruling for Ujjain.

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 Angeles22:43 → 23:5018:16102 min18:140 min17 Oct
Chicago00:43 → 01:5018:05104 min18:040 min17 Oct
Jersey City01:43 → 02:5018:12104 min18:110 min17 Oct
Port of Spain01:43 → 02:5017:4797 min17:470 min17 Oct
London06:43 → 07:5018:02108 min18:000 min17 Oct
Durban07:43 → 08:5018:0789 min18:080 min17 Oct
Dubai09:43 → 10:5017:50100 min17:490 min17 Oct
Delhi11:13 → 12:2017:49101 min17:480 min17 Oct
Kolkata11:13 → 12:2017:0999 min17:090 min17 Oct
Singapore13:43 → 14:5018:5295 min18:520 min17 Oct
Sydney16:43 → 17:5019:1088 min19:110 min17 Oct
Suva17:43 → 18:5018:0792 min18:0842 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