Ruling · Rukmiṇī Dvādaśī · 2029

Friday 25 May

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 23 minutes.

Decide it for

UjjainDelhiKolkataSingaporeSydneyJersey City

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

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Thursday 24 May

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 12:00  12:48 madhyāhna ends
Dvādaśī begins 13:10:42
11:1211:3612:0012:2412:4813:1213:36

0 of 48 minutes covered

Midday of Friday 25 May

Taken. Dvādaśī reaches neither midday; the rule takes the second day.

madhyāhna begins 12:00  12:48 madhyāhna ends
11:1211:3612:0012:2412:4813:1213:36

0 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 13:11 on Thu 24 May to 09:56 on Fri 25 May.

    2029-05-24T07:40:42Z → 2029-05-25T04:26:19Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 24th, 12:00–12:48 on the 25th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 24th and 0 of 48 on the 25th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: purvaviddha → second-day · margin 1371 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Ujjain, 2029: Friday 25 May.

    confidence: determinate

Say it like this

In Ujjain, Rukmiṇī Dvādaśī 2029 falls on Friday 25 May. Dvādaśī runs from 13:11 on Thu 24 May to 09:56 on Fri 25 May, and reaches madhyāhna on neither day.

ahargana.org/ujjain/festivals/2029/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 25 May
Ahargaṇa, classicalDisc centre, no refractionFri 25 May
compat-drikpanchangComparison profileThu 24 May
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/rukmini-dvadashi · ruleset 2026.3-draft

Month
Vaiśākha, amānta
Pakṣa · aṅga
Śukla · Dvādaśī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 102

“S 12 Parasurama dvadasi (purvaviddha), Rukmini dvadasi (purvaviddha)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDvādaśīMadhyāhna 24thCoveredMadhyāhna 25thCoveredRuled
Los Angeles00:41 → 21:2612:2648 min12:260 min24 May
Chicago02:41 → 23:2612:2448 min12:240 min24 May
Jersey City03:41 → 00:2612:2948 min12:300 min24 May
Port of Spain03:41 → 00:2611:3948 min11:390 min24 May
London08:41 → 05:2612:3448 min12:340 min24 May
Durban09:41 → 06:2611:2948 min11:290 min24 May
Dubai11:41 → 08:2611:5248 min11:520 min24 May
Delhi13:11 → 09:5611:540 min11:540 min25 May
Kolkata13:11 → 09:5611:100 min11:100 min25 May
Singapore15:41 → 12:2612:370 min12:380 min25 May
Sydney17:41 → 14:2611:280 min11:2848 min25 May
Suva19:41 → 16:2611:390 min11:3948 min25 May
Profile · tradition
pac-rp@2026.1 · smarta
Rule
rukmini-dvadashi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s