Ruling · Rukmiṇī Dvādaśī · 2000

Monday 15 May

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 54 minutes.

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 Sunday 14 May

Dvādaśī is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

Midday of Monday 15 May

Taken. The only midday Dvādaśī reaches.

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

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 12:55 on Sun 14 May to 12:57 on Mon 15 May.

    2000-05-14T04:54:40Z → 2000-05-15T04:57:11Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 14th, 11:13–12:01 on the 15th.

    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 14th and 48 of 48 on the 15th.

    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 3238 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Daqing, 2000: Monday 15 May.

    confidence: determinate

Say it like this

In Daqing, Rukmiṇī Dvādaśī 2000 falls on Monday 15 May. Dvādaśī runs from 12:55 on Sun 14 May to 12:57 on Mon 15 May and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2000/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 15 May
Ahargaṇa, classicalDisc centre, no refractionMon 15 May
compat-drikpanchangComparison profileSun 14 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles21:55 → 21:5712:2648 min12:260 min14 May
Chicago23:55 → 23:5712:2348 min12:230 min14 May
Jersey City00:55 → 00:5712:2948 min12:290 min14 May
Port of Spain00:55 → 00:5711:3848 min11:380 min14 May
London05:55 → 05:5712:3348 min12:330 min14 May
Durban06:55 → 06:5711:2848 min11:280 min14 May
Dubai08:55 → 08:5711:5148 min11:510 min14 May
Delhi10:25 → 10:2711:5448 min11:540 min14 May
Kolkata10:25 → 10:2711:0948 min11:090 min14 May
Singapore12:55 → 12:5712:3730 min12:3720 min14 May
Sydney14:55 → 14:5711:270 min11:2748 min15 May
Suva16:55 → 16:5711:390 min11:3948 min15 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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