Ruling · Rukmiṇī Dvādaśī · 2051

Monday 22 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 284 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two middays

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

Midday of Sunday 21 May

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

0 of 48 minutes covered

Midday of Monday 22 May

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

48 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 17:23 on Sun 21 May to 19:54 on Mon 22 May.

    2051-05-21T09:23:09Z → 2051-05-22T11:54:27Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 21st, 11:51–12:39 on the 22nd.

    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 21st and 48 of 48 on the 22nd.

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

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 17044 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Baoding, 2051: Monday 22 May.

    confidence: determinate

Say it like this

In Baoding, Rukmiṇī Dvādaśī 2051 falls on Monday 22 May. Dvādaśī runs from 17:23 on Sun 21 May to 19:54 on Mon 22 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2051/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 22 May
Ahargaṇa, classicalDisc centre, no refractionMon 22 May
compat-drikpanchangComparison profileMon 22 May
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/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 21stCoveredMadhyāhna 22ndCoveredRuled
Los Angeles02:23 → 04:5412:2648 min12:260 min21 May
Chicago04:23 → 06:5412:2448 min12:240 min21 May
Jersey City05:23 → 07:5412:2948 min12:290 min21 May
Port of Spain05:23 → 07:5411:3948 min11:390 min21 May
London10:23 → 12:5412:3448 min12:3421 min21 May
Durban11:23 → 13:5411:2848 min11:2948 min21 May
Dubai13:23 → 15:5411:520 min11:5248 min22 May
Delhi14:53 → 17:2411:540 min11:5448 min22 May
Kolkata14:53 → 17:2411:090 min11:0948 min22 May
Singapore17:23 → 19:5412:370 min12:3748 min22 May
Sydney19:23 → 21:5411:280 min11:2848 min22 May
Suva21:23 → 23:5411:390 min11:3948 min22 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

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