Ruling · Rukmiṇī Dvādaśī · 1951

Friday 18 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 631 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 Thursday 17 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 Friday 18 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 01:07 on Fri 18 May to 23:10 on Fri 18 May.

    1951-05-17T17:06:51Z → 1951-05-18T15:09:39Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 17th, 11:51–12:39 on the 18th.

    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 17th and 48 of 48 on the 18th.

    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 37856 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Baoding, 1951: Friday 18 May.

    confidence: determinate

Say it like this

In Baoding, Rukmiṇī Dvādaśī 1951 falls on Friday 18 May. Dvādaśī runs from 01:07 on Fri 18 May to 23:10 on Fri 18 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1951/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 18 May
Ahargaṇa, classicalDisc centre, no refractionFri 18 May
compat-drikpanchangComparison profileFri 18 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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles10:07 → 08:1012:2548 min12:250 min17 May
Chicago12:07 → 10:1012:2348 min12:230 min17 May
Jersey City13:07 → 11:1012:2910 min12:290 min17 May
Port of Spain13:07 → 11:1011:380 min11:380 min18 May
London18:07 → 16:1012:330 min12:3348 min18 May
Durban19:07 → 17:1011:280 min11:2848 min18 May
Dubai21:07 → 19:1011:510 min11:5148 min18 May
Delhi22:37 → 20:4011:540 min11:5448 min18 May
Kolkata22:37 → 20:4011:090 min11:0948 min18 May
Singapore00:37 → 22:4012:070 min12:0748 min18 May
Sydney03:07 → 01:1011:270 min11:2748 min18 May
Suva05:07 → 03:1011:380 min11:3948 min18 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