Ruling · Akhaṇḍa Dvādaśī · 2097

Monday 16 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 301 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 Sunday 15 December

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:50  12:38 madhyāhna ends
11:0211:2611:5012:1412:3813:0213:26

0 of 48 minutes covered

Midday of Monday 16 December

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:50  12:38 madhyāhna ends
11:0211:2611:5012:1412:3813:0213:26

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 19:40 on Sun 15 Dec to 17:39 on Mon 16 Dec.

    2097-12-15T11:40:27Z → 2097-12-16T09:39:09Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 on the 15th, 11:50–12:38 on the 16th.

    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 15th and 48 of 48 on the 16th.

    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 18060 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 2097: Monday 16 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 2097 falls on Monday 16 December. Dvādaśī runs from 19:40 on Sun 15 Dec to 17:39 on Mon 16 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2097/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 16 Dec
Ahargaṇa, classicalDisc centre, no refractionMon 16 Dec
compat-drikpanchangComparison profileMon 16 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 15thCoveredMadhyāhna 16thCoveredRuled
Los Angeles03:40 → 01:3911:2548 min11:250 min15 Dec
Chicago05:40 → 03:3911:2248 min11:230 min15 Dec
Jersey City06:40 → 04:3911:2848 min11:290 min15 Dec
Port of Spain07:40 → 05:3911:3848 min11:380 min15 Dec
London11:40 → 09:3911:3240 min11:330 min15 Dec
Durban13:40 → 11:3911:280 min11:2811 min16 Dec
Dubai15:40 → 13:3911:500 min11:5148 min16 Dec
Delhi17:10 → 15:0911:530 min11:5348 min16 Dec
Kolkata17:10 → 15:0911:080 min11:0948 min16 Dec
Singapore19:40 → 17:3912:360 min12:3748 min16 Dec
Sydney22:40 → 20:3912:270 min12:2748 min16 Dec
Suva23:40 → 21:3911:380 min11:3848 min16 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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