Ruling · Rukmiṇī Dvādaśī · 1938

Wednesday 11 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 68 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 Tuesday 10 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 Wednesday 11 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 13:46 on Tue 10 May to 13:48 on Wed 11 May.

    1938-05-10T05:46:20Z → 1938-05-11T05:47:38Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 10th, 11:51–12:39 on the 11th.

    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 10th and 48 of 48 on the 11th.

    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 4053 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Baoding, 1938: Wednesday 11 May.

    confidence: determinate

Say it like this

In Baoding, Rukmiṇī Dvādaśī 1938 falls on Wednesday 11 May. Dvādaśī runs from 13:46 on Tue 10 May to 13:48 on Wed 11 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1938/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 11 May
Ahargaṇa, classicalDisc centre, no refractionWed 11 May
compat-drikpanchangComparison profileWed 11 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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles21:46 → 21:4811:2648 min11:250 min10 May
Chicago00:46 → 00:4812:2348 min12:230 min10 May
Jersey City01:46 → 01:4812:2948 min12:290 min10 May
Port of Spain01:46 → 01:4811:3848 min11:380 min10 May
London06:46 → 06:4812:3348 min12:330 min10 May
Durban07:46 → 07:4811:2848 min11:280 min10 May
Dubai09:46 → 09:4811:5148 min11:510 min10 May
Delhi11:16 → 11:1811:5448 min11:540 min10 May
Kolkata11:16 → 11:1811:0941 min11:099 min10 May
Singapore13:06 → 13:0811:570 min11:5748 min11 May
Sydney15:46 → 15:4811:270 min11:2748 min11 May
Suva17:46 → 17:4811:390 min11:3948 min11 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

About Ahargaṇa