Ruling · Rukmiṇī Dvādaśī · 1980

Saturday 26 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 170 minutes.

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 26 April

Taken. The only midday Dvādaśī reaches.

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

48 of 48 minutes covered

Midday of Sunday 27 April

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

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 06:26 on Sat 26 Apr to 09:02 on Sun 27 Apr.

    1980-04-25T22:25:32Z → 1980-04-27T01:02:21Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 26th, 11:52–12:40 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 48 of 48 minutes on the 26th and 0 of 48 on the 27th.

    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 10185 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Baoding, 1980: Saturday 26 April.

    confidence: determinate

Say it like this

In Baoding, Rukmiṇī Dvādaśī 1980 falls on Saturday 26 April. Dvādaśī runs from 06:26 on Sat 26 Apr to 09:02 on Sun 27 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1980/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 26 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 26 Apr
compat-drikpanchangComparison profileSat 26 Apr
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 25thCoveredMadhyāhna 27thCoveredRuled
Los Angeles14:26 → 17:0211:270 min12:270 min26 Apr
Chicago16:26 → 19:0211:250 min12:250 min26 Apr
Jersey City17:26 → 20:0211:310 min12:300 min26 Apr
Port of Spain18:26 → 21:0211:400 min11:400 min26 Apr
London23:26 → 02:0212:350 min12:350 min26 Apr
Durban00:26 → 03:0211:300 min11:290 min26 Apr
Dubai02:26 → 05:0211:530 min11:530 min26 Apr
Delhi03:56 → 06:3211:550 min11:550 min26 Apr
Kolkata03:56 → 06:3211:110 min11:100 min26 Apr
Singapore05:56 → 08:3212:090 min12:080 min26 Apr
Sydney08:26 → 11:0211:290 min11:290 min26 Apr
Suva10:26 → 13:0211:400 min11:4048 min26 Apr
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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