Ruling · Rukmiṇī Dvādaśī · 1949

Monday 9 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 155 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 9 May

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 12:51  13:39 madhyāhna ends
12:0312:2712:5113:1513:3914:0314:27

48 of 48 minutes covered

Midday of Tuesday 10 May

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 12:51  13:39 madhyāhna ends
12:0312:2712:5113:1513:3914:0314:27

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 10:16 on Mon 9 May to 07:12 on Tue 10 May.

    1949-05-09T01:15:32Z → 1949-05-09T22:12:27Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:51–13:39 on the 9th, 12:51–13:39 on the 10th.

    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 9th and 0 of 48 on the 10th.

    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 9317 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Baoding, 1949: Monday 9 May.

    confidence: determinate

Say it like this

In Baoding, Rukmiṇī Dvādaśī 1949 falls on Monday 9 May. Dvādaśī runs from 10:16 on Mon 9 May to 07:12 on Tue 10 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1949/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 9 May
Ahargaṇa, classicalDisc centre, no refractionMon 9 May
compat-drikpanchangComparison profileMon 9 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 9thCoveredMadhyāhna 10thCoveredRuled
Los Angeles17:16 → 14:1211:2648 min11:260 min9 May
Chicago20:16 → 17:1212:2348 min12:230 min9 May
Jersey City21:16 → 18:1212:2948 min12:290 min9 May
Port of Spain21:16 → 18:1211:3848 min11:380 min9 May
London02:16 → 23:1212:3348 min12:330 min9 May
Durban03:16 → 00:1211:2848 min11:280 min9 May
Dubai05:16 → 02:1211:5148 min11:510 min9 May
Delhi06:46 → 03:4211:5448 min11:540 min9 May
Kolkata06:46 → 03:4211:0948 min11:090 min9 May
Singapore08:46 → 05:4212:0748 min12:070 min9 May
Sydney11:16 → 08:1211:2748 min11:270 min9 May
Suva13:16 → 10:1211:390 min11:390 min10 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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