Ruling · Rukmiṇī Dvādaśī · 1929

Monday 20 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 156 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 19 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 20 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 15:15 on Sun 19 May to 16:00 on Mon 20 May.

    1929-05-19T07:14:54Z → 1929-05-20T07:59:52Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 19th, 11:51–12:39 on the 20th.

    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 19th and 48 of 48 on the 20th.

    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 9373 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Baoding, 1929: Monday 20 May.

    confidence: determinate

Say it like this

In Baoding, Rukmiṇī Dvādaśī 1929 falls on Monday 20 May. Dvādaśī runs from 15:15 on Sun 19 May to 16:00 on Mon 20 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1929/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 20 May
Ahargaṇa, classicalDisc centre, no refractionMon 20 May
compat-drikpanchangComparison profileMon 20 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 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles23:15 → 00:0011:2548 min11:260 min19 May
Chicago02:15 → 03:0012:2348 min12:230 min19 May
Jersey City03:15 → 04:0012:2948 min12:290 min19 May
Port of Spain03:15 → 04:0011:3848 min11:380 min19 May
London08:15 → 09:0012:3348 min12:330 min19 May
Durban09:15 → 10:0011:2848 min11:280 min19 May
Dubai11:15 → 12:0011:5148 min11:519 min19 May
Delhi12:45 → 13:3011:540 min11:5448 min20 May
Kolkata12:45 → 13:3011:090 min11:0948 min20 May
Singapore14:15 → 15:0011:370 min11:3748 min20 May
Sydney17:15 → 18:0011:270 min11:2748 min20 May
Suva19:15 → 20:0011:390 min11:3948 min20 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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