Ruling · Rukmiṇī Dvādaśī · 1979

Tuesday 8 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 119 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 8 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 Wednesday 9 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 08:31 on Tue 8 May to 09:52 on Wed 9 May.

    1979-05-08T00:31:05Z → 1979-05-09T01:52:16Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 8th, 11:51–12:39 on the 9th.

    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 8th and 0 of 48 on the 9th.

    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 7117 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Baoding, 1979: Tuesday 8 May.

    confidence: determinate

Say it like this

In Baoding, Rukmiṇī Dvādaśī 1979 falls on Tuesday 8 May. Dvādaśī runs from 08:31 on Tue 8 May to 09:52 on Wed 9 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1979/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 8 May
Ahargaṇa, classicalDisc centre, no refractionTue 8 May
compat-drikpanchangComparison profileTue 8 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 8thCoveredMadhyāhna 9thCoveredRuled
Los Angeles17:31 → 18:5212:2648 min12:260 min8 May
Chicago19:31 → 20:5212:2348 min12:230 min8 May
Jersey City20:31 → 21:5212:2948 min12:290 min8 May
Port of Spain20:31 → 21:5211:3948 min11:390 min8 May
London01:31 → 02:5212:3448 min12:330 min8 May
Durban02:31 → 03:5211:2848 min11:280 min8 May
Dubai04:31 → 05:5211:5148 min11:510 min8 May
Delhi06:01 → 07:2211:5448 min11:540 min8 May
Kolkata06:01 → 07:2211:0948 min11:090 min8 May
Singapore08:01 → 09:2212:0748 min12:070 min8 May
Sydney10:31 → 11:5211:2748 min11:2725 min8 May
Suva12:31 → 13:5211:390 min11:3948 min9 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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