Ruling · Akhaṇḍa Dvādaśī · 1920

Wednesday 22 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 173 minutes.

Decide it for

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 22 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 Thursday 23 December

Dvādaśī is absent from madhyāhna. Not taken.

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

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 09:00 on Wed 22 Dec to 06:43 on Thu 23 Dec.

    1920-12-22T00:59:55Z → 1920-12-22T22:43:26Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 22nd, 11:53–12:41 on the 23rd.

    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 22nd and 0 of 48 on the 23rd.

    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 10364 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 1920: Wednesday 22 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 1920 falls on Wednesday 22 December. Dvādaśī runs from 09:00 on Wed 22 Dec to 06:43 on Thu 23 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1920/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 22 Dec
Ahargaṇa, classicalDisc centre, no refractionWed 22 Dec
compat-drikpanchangComparison profileWed 22 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 22ndCoveredMadhyāhna 23rdCoveredRuled
Los Angeles17:00 → 14:4311:2848 min11:280 min22 Dec
Chicago19:00 → 16:4311:2548 min11:260 min22 Dec
Jersey City20:00 → 17:4311:3148 min11:320 min22 Dec
Port of Spain21:00 → 18:4311:4148 min11:410 min22 Dec
London01:00 → 22:4311:3548 min11:360 min22 Dec
Durban03:00 → 00:4311:3048 min11:310 min22 Dec
Dubai05:00 → 02:4311:5348 min11:540 min22 Dec
Delhi06:30 → 04:1311:5648 min11:560 min22 Dec
Kolkata06:30 → 04:1311:1148 min11:120 min22 Dec
Singapore08:00 → 05:4311:3948 min11:400 min22 Dec
Sydney11:00 → 08:4311:3048 min11:300 min22 Dec
Suva13:00 → 10:4311:410 min11:410 min23 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