Ruling · Rukmiṇī Dvādaśī · 1901

Tuesday 30 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 228 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 Monday 29 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

Midday of Tuesday 30 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

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 16:28 on Mon 29 Apr to 18:43 on Tue 30 Apr.

    1901-04-29T08:28:21Z → 1901-04-30T10:43:21Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 29th, 11:52–12:40 on the 30th.

    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 29th and 48 of 48 on the 30th.

    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 13708 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Baoding, 1901: Tuesday 30 April.

    confidence: determinate

Say it like this

In Baoding, Rukmiṇī Dvādaśī 1901 falls on Tuesday 30 April. Dvādaśī runs from 16:28 on Mon 29 Apr to 18:43 on Tue 30 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1901/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 30 Apr
Ahargaṇa, classicalDisc centre, no refractionTue 30 Apr
compat-drikpanchangComparison profileTue 30 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 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles00:28 → 02:4311:2748 min11:260 min29 Apr
Chicago02:28 → 04:4311:2448 min11:240 min29 Apr
Jersey City03:28 → 05:4311:3048 min11:300 min29 Apr
Port of Spain04:28 → 06:4311:3948 min11:390 min29 Apr
London08:28 → 10:4311:3448 min11:340 min29 Apr
Durban09:58 → 12:1310:5948 min10:5948 min29 Apr
Dubai12:09 → 14:2411:3312 min11:3348 min29 Apr
Delhi13:49 → 16:0411:460 min11:4648 min30 Apr
Kolkata13:49 → 16:0411:010 min11:0148 min30 Apr
Singapore15:23 → 17:3811:330 min11:3348 min30 Apr
Sydney18:28 → 20:4311:280 min11:2848 min30 Apr
Suva20:23 → 22:3811:350 min11:3448 min30 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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