Ruling · Rukmiṇī Dvādaśī · 1905

Tuesday 16 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 186 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 15 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

Midday of Tuesday 16 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

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 18:54 on Mon 15 May to 15:45 on Tue 16 May.

    1905-05-15T10:54:17Z → 1905-05-16T07:44:37Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 15th, 11:51–12:39 on the 16th.

    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 15th and 48 of 48 on the 16th.

    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 11161 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Baoding, 1905: Tuesday 16 May.

    confidence: determinate

Say it like this

In Baoding, Rukmiṇī Dvādaśī 1905 falls on Tuesday 16 May. Dvādaśī runs from 18:54 on Mon 15 May to 15:45 on Tue 16 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1905/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 16 May
Ahargaṇa, classicalDisc centre, no refractionTue 16 May
compat-drikpanchangComparison profileTue 16 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 15thCoveredMadhyāhna 16thCoveredRuled
Los Angeles02:54 → 23:4511:2548 min11:250 min15 May
Chicago04:54 → 01:4511:2348 min11:230 min15 May
Jersey City05:54 → 02:4511:2948 min11:290 min15 May
Port of Spain06:54 → 03:4511:3848 min11:380 min15 May
London10:54 → 07:4511:3348 min11:330 min15 May
Durban12:54 → 09:4511:280 min11:280 min16 May
Dubai14:35 → 11:2611:320 min11:320 min16 May
Delhi16:15 → 13:0611:440 min11:4448 min16 May
Kolkata16:15 → 13:0611:000 min11:0048 min16 May
Singapore17:49 → 14:4011:320 min11:3248 min16 May
Sydney20:54 → 17:4511:270 min11:2748 min16 May
Suva22:49 → 19:4011:330 min11:3348 min16 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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