Ruling · Rukmiṇī Dvādaśī · 1956

Monday 21 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 505 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 20 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 21 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 21:12 on Sun 20 May to 21:03 on Mon 21 May.

    1956-05-20T13:11:59Z → 1956-05-21T13:03:29Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 20th, 11:51–12:39 on the 21st.

    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 20th and 48 of 48 on the 21st.

    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 30277 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Baoding, 1956: Monday 21 May.

    confidence: determinate

Say it like this

In Baoding, Rukmiṇī Dvādaśī 1956 falls on Monday 21 May. Dvādaśī runs from 21:12 on Sun 20 May to 21:03 on Mon 21 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1956/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 21 May
Ahargaṇa, classicalDisc centre, no refractionMon 21 May
compat-drikpanchangComparison profileMon 21 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 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles06:12 → 06:0312:2648 min12:260 min20 May
Chicago08:12 → 08:0312:2348 min12:230 min20 May
Jersey City09:12 → 09:0312:2948 min12:290 min20 May
Port of Spain09:12 → 09:0311:3948 min11:390 min20 May
London14:12 → 14:0312:330 min12:3348 min21 May
Durban15:12 → 15:0311:280 min11:2848 min21 May
Dubai17:12 → 17:0311:510 min11:5148 min21 May
Delhi18:42 → 18:3311:540 min11:5448 min21 May
Kolkata18:42 → 18:3311:090 min11:0948 min21 May
Singapore20:42 → 20:3312:070 min12:0748 min21 May
Sydney23:12 → 23:0311:270 min11:2848 min21 May
Suva01:12 → 01:0311:390 min11:3948 min21 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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