Ruling · Rukmiṇī Dvādaśī · 2060

Wednesday 12 May

Boundaryin Daqing, under the Rashtriya Panchang method. A threshold is only 4 min 01 s away. Say “contested”.

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 Tuesday 11 May

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:13  12:01 madhyāhna ends
Dvādaśī begins 12:04:55
10:2510:4911:1311:3712:0112:2512:49

0 of 48 minutes covered

Midday of Wednesday 12 May

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:13  12:01 madhyāhna ends
10:2510:4911:1311:3712:0112:2512:49

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 12:05 on Tue 11 May to 14:40 on Wed 12 May.

    2060-05-11T04:04:55Z → 2060-05-12T06:40:26Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 11th, 11:13–12:01 on the 12th.

    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 11th and 48 of 48 on the 12th.

    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 241 s < 300 s

  5. 05

    Ruling

    Rukmiṇī Dvādaśī, Daqing, 2060: Wednesday 12 May.

    confidence: boundary (margin)

Say it like this

In Daqing, Rukmiṇī Dvādaśī 2060 falls on Wednesday 12 May. Dvādaśī runs from 12:05 on Tue 11 May to 14:40 on Wed 12 May and covers all of madhyāhna that midday. It is 4 min 01 s from a threshold: treat the date as contested.

ahargana.org/daqing/festivals/2060/rukmini-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 12 May
Ahargaṇa, classicalDisc centre, no refractionWed 12 May
compat-drikpanchangComparison profileTue 11 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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles21:05 → 23:4012:2648 min12:260 min11 May
Chicago23:05 → 01:4012:2348 min12:230 min11 May
Jersey City00:05 → 02:4012:2948 min12:290 min11 May
Port of Spain00:05 → 02:4011:3948 min11:390 min11 May
London05:05 → 07:4012:3448 min12:330 min11 May
Durban06:05 → 08:4011:2848 min11:280 min11 May
Dubai08:05 → 10:4011:5148 min11:510 min11 May
Delhi09:35 → 12:1011:5448 min11:5417 min11 May
Kolkata09:35 → 12:1011:0948 min11:0948 min11 May
Singapore12:05 → 14:4012:3748 min12:3748 min11 May
Sydney14:05 → 16:4011:280 min11:2848 min12 May
Suva16:05 → 18:4011:390 min11:3948 min12 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