Ruling · Rukmiṇī Dvādaśī · 2094

Wednesday 26 May

Boundaryin Daqing, under the Rashtriya Panchang method. A threshold is only 2 min 14 s away. Say “contested”.

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 Wednesday 26 May

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

madhyāhna begins 11:14  12:02 madhyāhna ends
Dvādaśī begins 11:16:04
10:2610:5011:1411:3812:0212:2612:50

46 of 48 minutes covered, the last 46

Midday of Thursday 27 May

Qualifies with 24 of 48 minutes. Not taken.

madhyāhna begins 11:14  12:02 madhyāhna ends
Dvādaśī ends 11:38:01
10:2610:5011:1411:3812:0212:2612:50

24 of 48 minutes covered, the first 24

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 11:16 on Wed 26 May to 11:38 on Thu 27 May.

    2094-05-26T03:16:05Z → 2094-05-27T03:38:02Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:14–12:02 on the 26th, 11:14–12:02 on the 27th.

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

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 46 of 48 minutes on the 26th and 24 of 48 on the 27th.

    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 134 s < 300 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Daqing, 2094: Wednesday 26 May.

    confidence: boundary (margin)

Say it like this

In Daqing, Rukmiṇī Dvādaśī 2094 falls on Wednesday 26 May. Dvādaśī runs from 11:16 on Wed 26 May to 11:38 on Thu 27 May and covers 46 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 24 minutes; by the rule the first midday is taken. It is 2 min 14 s from a threshold: treat the date as contested.

ahargana.org/daqing/festivals/2094/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 26 May
Ahargaṇa, classicalDisc centre, no refractionWed 26 May
compat-drikpanchangComparison profileWed 26 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 26thCoveredMadhyāhna 27thCoveredRuled
Los Angeles20:16 → 20:3812:2748 min12:270 min26 May
Chicago22:16 → 22:3812:2448 min12:250 min26 May
Jersey City23:16 → 23:3812:3048 min12:300 min26 May
Port of Spain23:16 → 23:3811:4048 min11:400 min26 May
London04:16 → 04:3812:3448 min12:350 min26 May
Durban05:16 → 05:3811:2948 min11:290 min26 May
Dubai07:16 → 07:3811:5248 min11:530 min26 May
Delhi08:46 → 09:0811:5548 min11:550 min26 May
Kolkata08:46 → 09:0811:1048 min11:100 min26 May
Singapore11:16 → 11:3812:3848 min12:380 min26 May
Sydney13:16 → 13:3811:290 min11:2948 min27 May
Suva15:16 → 15:3811:400 min11:4048 min27 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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