Ruling · Rukmiṇī Dvādaśī · 2011

Saturday 14 May

Determinatein Luanda, under the Rashtriya Panchang method. Clear of every threshold by 554 minutes.

Decide it for

LuandaDelhiKolkataSingaporeSydneyJersey City

8°50′ S 13°14′ E · Africa/Luanda · GeoNames 2240449

The two middays

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

Midday of Friday 13 May

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

0 of 48 minutes covered

Midday of Saturday 14 May

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

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 00:54 on Sat 14 May to 21:42 on Sat 14 May.

    2011-05-13T23:53:40Z → 2011-05-14T20:41:48Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 13th, 11:39–12:27 on the 14th.

    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 13th and 48 of 48 on the 14th.

    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 33265 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Luanda, 2011: Saturday 14 May.

    confidence: determinate

Say it like this

In Luanda, Rukmiṇī Dvādaśī 2011 falls on Saturday 14 May. Dvādaśī runs from 00:54 on Sat 14 May to 21:42 on Sat 14 May and covers all of madhyāhna that midday.

ahargana.org/luanda/festivals/2011/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 14 May
Ahargaṇa, classicalDisc centre, no refractionSat 14 May
compat-drikpanchangComparison profileSat 14 May
No institution has a recorded ruling for Luanda.

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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles16:54 → 13:4212:260 min12:2648 min14 May
Chicago18:54 → 15:4212:230 min12:2348 min14 May
Jersey City19:54 → 16:4212:290 min12:2948 min14 May
Port of Spain19:54 → 16:4211:380 min11:3848 min14 May
London00:54 → 21:4212:330 min12:3348 min14 May
Durban01:54 → 22:4211:280 min11:2848 min14 May
Dubai03:54 → 00:4211:510 min11:5148 min14 May
Delhi05:24 → 02:1211:540 min11:5448 min14 May
Kolkata05:24 → 02:1211:090 min11:0948 min14 May
Singapore07:54 → 04:4212:370 min12:3748 min14 May
Sydney09:54 → 06:4211:270 min11:2748 min14 May
Suva11:54 → 08:4211:390 min11:3933 min14 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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