Ruling · Rukmiṇī Dvādaśī · 2004

Sunday 2 May

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 3 min 02 s away. Say “contested”.

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 Saturday 1 May

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

0 of 48 minutes covered

Midday of Sunday 2 May

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:51  12:39 madhyāhna ends
Dvādaśī ends 12:36:24
11:0311:2711:5112:1512:3913:0313:27

45 of 48 minutes covered, the first 45

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 14:09 on Sat 1 May to 12:36 on Sun 2 May.

    2004-05-01T06:08:32Z → 2004-05-02T04:36:24Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 1st, 11:51–12:39 on the 2nd.

    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 1st and 45 of 48 on the 2nd.

    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 182 s < 300 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Baoding, 2004: Sunday 2 May.

    confidence: boundary (margin)

Say it like this

In Baoding, Rukmiṇī Dvādaśī 2004 falls on Sunday 2 May. Dvādaśī runs from 14:09 on Sat 1 May to 12:36 on Sun 2 May and covers 45 of 48 minutes of madhyāhna that midday. It is 3 min 02 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/2004/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 2 May
Ahargaṇa, classicalDisc centre, no refractionSun 2 May
compat-drikpanchangComparison profileSun 2 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 1stCoveredMadhyāhna 2ndCoveredRuled
Los Angeles23:09 → 21:3612:2648 min12:260 min1 May
Chicago01:09 → 23:3612:2448 min12:240 min1 May
Jersey City02:09 → 00:3612:3048 min12:300 min1 May
Port of Spain02:09 → 00:3611:3948 min11:390 min1 May
London07:09 → 05:3612:3448 min12:340 min1 May
Durban08:09 → 06:3611:2948 min11:290 min1 May
Dubai10:09 → 08:3611:5248 min11:520 min1 May
Delhi11:39 → 10:0611:5448 min11:540 min1 May
Kolkata11:39 → 10:0611:1019 min11:100 min1 May
Singapore14:09 → 12:3612:380 min12:380 min2 May
Sydney16:09 → 14:3611:280 min11:2848 min2 May
Suva18:09 → 16:3611:390 min11:3948 min2 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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