Ruling · Akhaṇḍa Dvādaśī · 1991

Wednesday 18 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 400 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 18 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

Midday of Thursday 19 December

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

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 05:10 on Wed 18 Dec to 03:17 on Thu 19 Dec.

    1991-12-17T21:10:24Z → 1991-12-18T19:17:13Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 on the 18th, 11:51–12:39 on the 19th.

    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 18th and 0 of 48 on the 19th.

    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 23999 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 1991: Wednesday 18 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 1991 falls on Wednesday 18 December. Dvādaśī runs from 05:10 on Wed 18 Dec to 03:17 on Thu 19 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1991/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 18 Dec
Ahargaṇa, classicalDisc centre, no refractionWed 18 Dec
compat-drikpanchangComparison profileWed 18 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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles13:10 → 11:1711:250 min11:260 min18 Dec
Chicago15:10 → 13:1711:230 min11:2348 min18 Dec
Jersey City16:10 → 14:1711:280 min11:2948 min18 Dec
Port of Spain17:10 → 15:1711:380 min11:3948 min18 Dec
London21:10 → 19:1711:320 min11:3348 min18 Dec
Durban23:10 → 21:1711:280 min11:2848 min18 Dec
Dubai01:10 → 23:1711:510 min11:5148 min18 Dec
Delhi02:40 → 00:4711:530 min11:5348 min18 Dec
Kolkata02:40 → 00:4711:080 min11:0948 min18 Dec
Singapore05:10 → 03:1712:360 min12:3748 min18 Dec
Sydney08:10 → 06:1712:270 min12:2748 min18 Dec
Suva09:10 → 07:1711:380 min11:3848 min18 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

About Ahargaṇa