Ruling · Akhaṇḍa Dvādaśī · 1966

Saturday 24 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 556 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 Saturday 24 December

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:53  12:41 madhyāhna ends
11:0511:2911:5312:1712:4113:0513:29

48 of 48 minutes covered

Midday of Sunday 25 December

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

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 01:34 on Sat 24 Dec to 02:38 on Sun 25 Dec.

    1966-12-23T17:33:31Z → 1966-12-24T18:38:16Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 24th, 11:54–12:42 on the 25th.

    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 24th and 0 of 48 on the 25th.

    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 33342 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 1966: Saturday 24 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 1966 falls on Saturday 24 December. Dvādaśī runs from 01:34 on Sat 24 Dec to 02:38 on Sun 25 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1966/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 24 Dec
Ahargaṇa, classicalDisc centre, no refractionSat 24 Dec
compat-drikpanchangComparison profileSat 24 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 23rdCoveredMadhyāhna 24thCoveredRuled
Los Angeles09:34 → 10:3811:2848 min11:290 min23 Dec
Chicago11:34 → 12:3811:2640 min11:2648 min24 Dec
Jersey City12:34 → 13:3811:310 min11:3248 min24 Dec
Port of Spain13:34 → 14:3811:410 min11:4248 min24 Dec
London17:34 → 18:3811:350 min11:3648 min24 Dec
Durban19:34 → 20:3811:310 min11:3148 min24 Dec
Dubai21:34 → 22:3811:540 min11:5448 min24 Dec
Delhi23:04 → 00:0811:560 min11:5648 min24 Dec
Kolkata23:04 → 00:0811:110 min11:1248 min24 Dec
Singapore01:04 → 02:0812:090 min12:1048 min24 Dec
Sydney03:34 → 04:3811:300 min11:3048 min24 Dec
Suva05:34 → 06:3811:410 min11:4248 min24 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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