Ruling · Rukmiṇī Dvādaśī · 1978

Friday 19 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 360 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 Friday 19 May

Taken. The only midday Dvādaśī reaches.

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

48 of 48 minutes covered

Midday of Saturday 20 May

Dvādaśī is absent from madhyāhna. Not taken.

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

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 05:51 on Fri 19 May to 04:42 on Sat 20 May.

    1978-05-18T21:50:34Z → 1978-05-19T20:41:50Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 19th, 11:51–12:39 on the 20th.

    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 19th and 0 of 48 on the 20th.

    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 21612 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Baoding, 1978: Friday 19 May.

    confidence: determinate

Say it like this

In Baoding, Rukmiṇī Dvādaśī 1978 falls on Friday 19 May. Dvādaśī runs from 05:51 on Fri 19 May to 04:42 on Sat 20 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1978/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 19 May
Ahargaṇa, classicalDisc centre, no refractionFri 19 May
compat-drikpanchangComparison profileFri 19 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 18thCoveredMadhyāhna 19thCoveredRuled
Los Angeles14:51 → 13:4212:260 min12:2648 min19 May
Chicago16:51 → 15:4212:230 min12:2348 min19 May
Jersey City17:51 → 16:4212:290 min12:2948 min19 May
Port of Spain17:51 → 16:4211:380 min11:3948 min19 May
London22:51 → 21:4212:330 min12:3348 min19 May
Durban23:51 → 22:4211:280 min11:2848 min19 May
Dubai01:51 → 00:4211:510 min11:5148 min19 May
Delhi03:21 → 02:1211:540 min11:5448 min19 May
Kolkata03:21 → 02:1211:090 min11:0948 min19 May
Singapore05:21 → 04:1212:070 min12:0748 min19 May
Sydney07:51 → 06:4211:270 min11:2748 min19 May
Suva09:51 → 08:4211:390 min11:3948 min19 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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