Ruling · Rukmiṇī Dvādaśī · 1928

Tuesday 1 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 417 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 30 April

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

0 of 48 minutes covered

Midday of Tuesday 1 May

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

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 19:37 on Mon 30 Apr to 21:19 on Tue 1 May.

    1928-04-30T11:36:37Z → 1928-05-01T13:18:47Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 30th, 11:52–12:40 on the 1st.

    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 30th and 48 of 48 on the 1st.

    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 25016 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Baoding, 1928: Tuesday 1 May.

    confidence: determinate

Say it like this

In Baoding, Rukmiṇī Dvādaśī 1928 falls on Tuesday 1 May. Dvādaśī runs from 19:37 on Mon 30 Apr to 21:19 on Tue 1 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1928/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 1 May
Ahargaṇa, classicalDisc centre, no refractionTue 1 May
compat-drikpanchangComparison profileTue 1 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 30thCoveredMadhyāhna 1stCoveredRuled
Los Angeles03:37 → 05:1911:2648 min11:260 min30 Apr
Chicago06:37 → 08:1912:2448 min12:240 min30 Apr
Jersey City07:37 → 09:1912:3048 min12:300 min30 Apr
Port of Spain07:37 → 09:1911:3948 min11:390 min30 Apr
London12:37 → 14:1912:3446 min12:3448 min30 Apr
Durban13:37 → 15:1911:290 min11:2948 min1 May
Dubai15:37 → 17:1911:520 min11:5248 min1 May
Delhi17:07 → 18:4911:540 min11:5448 min1 May
Kolkata17:07 → 18:4911:100 min11:1048 min1 May
Singapore18:37 → 20:1911:380 min11:3848 min1 May
Sydney21:37 → 23:1911:280 min11:2848 min1 May
Suva23:37 → 01:1911:390 min11:3948 min1 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