Ruling · Akhaṇḍa Dvādaśī · 2021

Wednesday 15 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 438 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 15 December

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

48 of 48 minutes covered

Midday of Thursday 16 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

Dvādaśī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 02:06 on Wed 15 Dec to 04:32 on Thu 16 Dec.

    2021-12-14T18:06:08Z → 2021-12-15T20:31:59Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 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 48 of 48 minutes on the 15th and 0 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 26261 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 2021: Wednesday 15 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 2021 falls on Wednesday 15 December. Dvādaśī runs from 02:06 on Wed 15 Dec to 04:32 on Thu 16 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2021/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 15 Dec
Ahargaṇa, classicalDisc centre, no refractionWed 15 Dec
compat-drikpanchangComparison profileWed 15 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles10:06 → 12:3211:2448 min11:2448 min15 Dec
Chicago12:06 → 14:3211:213 min11:2248 min15 Dec
Jersey City13:06 → 15:3211:270 min11:2848 min15 Dec
Port of Spain14:06 → 16:3211:370 min11:3748 min15 Dec
London18:06 → 20:3211:310 min11:3248 min15 Dec
Durban20:06 → 22:3211:270 min11:2748 min15 Dec
Dubai22:06 → 00:3211:490 min11:5048 min15 Dec
Delhi23:36 → 02:0211:520 min11:5248 min15 Dec
Kolkata23:36 → 02:0211:070 min11:0848 min15 Dec
Singapore02:06 → 04:3212:350 min12:3648 min15 Dec
Sydney05:06 → 07:3212:260 min12:2648 min15 Dec
Suva06:06 → 08:3211:370 min11:3748 min15 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