Ruling · Akhaṇḍa Dvādaśī · 2018

Wednesday 19 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 106 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 Wednesday 19 December

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 Thursday 20 December

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

Dvādaśī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 10:05 on Wed 19 Dec to 08:56 on Thu 20 Dec.

    2018-12-19T02:05:25Z → 2018-12-20T00:56:08Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 19th, 11:52–12:40 on the 20th.

    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 19th and 0 of 48 on the 20th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: paraviddha → only-day · margin 6337 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 2018: Wednesday 19 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 2018 falls on Wednesday 19 December. Dvādaśī runs from 10:05 on Wed 19 Dec to 08:56 on Thu 20 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2018/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 19 Dec
Ahargaṇa, classicalDisc centre, no refractionWed 19 Dec
compat-drikpanchangComparison profileWed 19 Dec
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/akhanda-dvadashi · ruleset 2026.3-draft

Month
Mārgaśīrṣa, amānta
Pakṣa · aṅga
Śukla · Dvādaśī
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 104

“S 12 Matsya dvadasi, Akhanda dvadasi (paraviddha), Vyanjana dvadasi & Dana dvadasi (Orissa).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDvādaśīMadhyāhna 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles18:05 → 16:5611:2648 min11:270 min19 Dec
Chicago20:05 → 18:5611:2448 min11:240 min19 Dec
Jersey City21:05 → 19:5611:2948 min11:300 min19 Dec
Port of Spain22:05 → 20:5611:3948 min11:400 min19 Dec
London02:05 → 00:5611:3448 min11:340 min19 Dec
Durban04:05 → 02:5611:2948 min11:290 min19 Dec
Dubai06:05 → 04:5611:5248 min11:520 min19 Dec
Delhi07:35 → 06:2611:5448 min11:550 min19 Dec
Kolkata07:35 → 06:2611:0948 min11:100 min19 Dec
Singapore10:05 → 08:5612:3848 min12:380 min19 Dec
Sydney13:05 → 11:5612:2811 min12:290 min19 Dec
Suva15:05 → 13:5612:390 min12:4048 min20 Dec
Profile · tradition
pac-rp@2026.1 · smarta
Rule
akhanda-dvadashi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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