Ruling · Rukmiṇī Dvādaśī · 2006

Tuesday 9 May

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 8 min 44 s.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

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

Midday of Tuesday 9 May

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 11:13  12:01 madhyāhna ends
10:2510:4911:1311:3712:0112:2512:49

48 of 48 minutes covered

Midday of Wednesday 10 May

Qualifies with 39 of 48 minutes. Not taken.

madhyāhna begins 11:13  12:01 madhyāhna ends
Dvādaśī ends 11:52:04
10:2510:4911:1311:3712:0112:2512:49

39 of 48 minutes covered, the first 39

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 09:49 on Tue 9 May to 11:52 on Wed 10 May.

    2006-05-09T01:48:35Z → 2006-05-10T03:52:05Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 9th, 11:13–12:01 on the 10th.

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

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 9th and 39 of 48 on the 10th.

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

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 524 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Daqing, 2006: Tuesday 9 May.

    confidence: determinate

Say it like this

In Daqing, Rukmiṇī Dvādaśī 2006 falls on Tuesday 9 May. Dvādaśī runs from 09:49 on Tue 9 May to 11:52 on Wed 10 May and covers all of madhyāhna that midday. It also reaches the next midday for 39 minutes; by the rule the first midday is taken.

ahargana.org/daqing/festivals/2006/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 9 May
Ahargaṇa, classicalDisc centre, no refractionTue 9 May
compat-drikpanchangComparison profileTue 9 May
No institution has a recorded ruling for Daqing.

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 9thCoveredMadhyāhna 10thCoveredRuled
Los Angeles18:49 → 20:5212:2648 min12:260 min9 May
Chicago20:49 → 22:5212:2348 min12:230 min9 May
Jersey City21:49 → 23:5212:2948 min12:290 min9 May
Port of Spain21:49 → 23:5211:3948 min11:390 min9 May
London02:49 → 04:5212:3348 min12:330 min9 May
Durban03:49 → 05:5211:2848 min11:280 min9 May
Dubai05:49 → 07:5211:5148 min11:510 min9 May
Delhi07:19 → 09:2211:5448 min11:540 min9 May
Kolkata07:19 → 09:2211:0948 min11:090 min9 May
Singapore09:49 → 11:5212:3748 min12:370 min9 May
Sydney11:49 → 13:5211:2727 min11:2748 min9 May
Suva13:49 → 15:5211:390 min11:3948 min10 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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