Ruling · Akhaṇḍa Dvādaśī · 2083

Monday 20 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 465 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 20 December

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

Midday of Tuesday 21 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 01:49 on Mon 20 Dec to 04:07 on Tue 21 Dec.

    2083-12-19T17:48:44Z → 2083-12-20T20:06:58Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 20th, 11:52–12:40 on the 21st.

    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 20th and 0 of 48 on the 21st.

    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 27917 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 2083: Monday 20 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 2083 falls on Monday 20 December. Dvādaśī runs from 01:49 on Mon 20 Dec to 04:07 on Tue 21 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2083/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 20 Dec
Ahargaṇa, classicalDisc centre, no refractionMon 20 Dec
compat-drikpanchangComparison profileMon 20 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 Angeles09:49 → 12:0711:2648 min11:2740 min20 Dec
Chicago11:49 → 14:0711:2423 min11:2448 min20 Dec
Jersey City12:49 → 15:0711:300 min11:3048 min20 Dec
Port of Spain13:49 → 16:0711:390 min11:4048 min20 Dec
London17:49 → 20:0711:340 min11:3448 min20 Dec
Durban19:49 → 22:0711:290 min11:3048 min20 Dec
Dubai21:49 → 00:0711:520 min11:5248 min20 Dec
Delhi23:19 → 01:3711:540 min11:5548 min20 Dec
Kolkata23:19 → 01:3711:100 min11:1048 min20 Dec
Singapore01:49 → 04:0712:380 min12:3848 min20 Dec
Sydney04:49 → 07:0712:280 min12:2948 min20 Dec
Suva05:49 → 08:0711:390 min11:4048 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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