Ruling · Rukmiṇī Dvādaśī · 1944

Thursday 4 May

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 33 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Thursday 4 May

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 12:13  13:01 madhyāhna ends
Dvādaśī begins 11:40:40
11:2511:4912:1312:3713:0113:2513:49

48 of 48 minutes covered

Midday of Friday 5 May

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 12:13  13:01 madhyāhna ends
Dvādaśī ends 13:37:57
11:2511:4912:1312:3713:0113:2513:49

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 11:41 on Thu 4 May to 13:38 on Fri 5 May.

    1944-05-04T02:40:40Z → 1944-05-05T04:37:57Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:13–13:01 on the 4th, 12:13–13:01 on the 5th.

    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 4th and 48 of 48 on the 5th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 1950 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Daqing, 1944: Thursday 4 May.

    confidence: determinate

Say it like this

In Daqing, Rukmiṇī Dvādaśī 1944 falls on Thursday 4 May. Dvādaśī runs from 11:41 on Thu 4 May to 13:38 on Fri 5 May and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.

ahargana.org/daqing/festivals/1944/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 4 May
Ahargaṇa, classicalDisc centre, no refractionThu 4 May
compat-drikpanchangComparison profileThu 4 May
No institution has a recorded ruling for Daqing.

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 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles19:41 → 21:3812:2648 min12:260 min4 May
Chicago21:41 → 23:3812:2448 min12:240 min4 May
Jersey City22:41 → 00:3812:2948 min12:290 min4 May
Port of Spain23:41 → 01:3812:3948 min12:390 min4 May
London04:41 → 06:3813:3448 min13:340 min4 May
Durban04:41 → 06:3811:2848 min11:280 min4 May
Dubai06:41 → 08:3811:5248 min11:520 min4 May
Delhi09:11 → 11:0812:5448 min12:540 min4 May
Kolkata09:11 → 11:0812:0948 min12:090 min4 May
Singapore11:41 → 13:3813:3748 min13:371 min4 May
Sydney12:41 → 14:3811:280 min11:2848 min5 May
Suva14:41 → 16:3811:390 min11:3948 min5 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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