Ruling · Rukmiṇī Dvādaśī · 1910

Friday 20 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 339 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 20 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 21 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 03:44 on Fri 20 May to 06:11 on Sat 21 May.

    1910-05-19T19:43:34Z → 1910-05-20T22:11:24Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 20th, 11:51–12:39 on the 21st.

    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 20th and 0 of 48 on the 21st.

    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 20360 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Baoding, 1910: Friday 20 May.

    confidence: determinate

Say it like this

In Baoding, Rukmiṇī Dvādaśī 1910 falls on Friday 20 May. Dvādaśī runs from 03:44 on Fri 20 May to 06:11 on Sat 21 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1910/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 20 May
Ahargaṇa, classicalDisc centre, no refractionFri 20 May
compat-drikpanchangComparison profileFri 20 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 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles11:44 → 14:1111:2530 min11:2548 min19 May
Chicago13:44 → 16:1111:230 min11:2348 min20 May
Jersey City14:44 → 17:1111:290 min11:2948 min20 May
Port of Spain15:44 → 18:1111:380 min11:3848 min20 May
London19:44 → 22:1111:330 min11:3348 min20 May
Durban21:44 → 00:1111:280 min11:2848 min20 May
Dubai23:25 → 01:5211:320 min11:3248 min20 May
Delhi01:14 → 03:4111:530 min11:5448 min20 May
Kolkata01:14 → 03:4111:090 min11:0948 min20 May
Singapore02:44 → 05:1111:370 min11:3748 min20 May
Sydney05:44 → 08:1111:270 min11:2748 min20 May
Suva07:39 → 10:0611:330 min11:3448 min20 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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