Ruling · Akhaṇḍa Dvādaśī · 2045

Thursday 21 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 61 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 20 December

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

0 of 48 minutes covered

Midday of Thursday 21 December

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

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 13:59 on Wed 20 Dec to 13:41 on Thu 21 Dec.

    2045-12-20T05:59:08Z → 2045-12-21T05:40:46Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 20th, 11:52–12:40 on the 21st.

    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 20th and 48 of 48 on the 21st.

    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 3632 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 2045: Thursday 21 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 2045 falls on Thursday 21 December. Dvādaśī runs from 13:59 on Wed 20 Dec to 13:41 on Thu 21 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2045/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 21 Dec
Ahargaṇa, classicalDisc centre, no refractionThu 21 Dec
compat-drikpanchangComparison profileThu 21 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 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles21:59 → 21:4111:2748 min11:270 min20 Dec
Chicago23:59 → 23:4111:2448 min11:250 min20 Dec
Jersey City00:59 → 00:4111:3048 min11:310 min20 Dec
Port of Spain01:59 → 01:4111:4048 min11:400 min20 Dec
London05:59 → 05:4111:3448 min11:350 min20 Dec
Durban07:59 → 07:4111:3048 min11:300 min20 Dec
Dubai09:59 → 09:4111:5248 min11:530 min20 Dec
Delhi11:29 → 11:1111:5548 min11:550 min20 Dec
Kolkata11:29 → 11:1111:1029 min11:110 min21 Dec
Singapore13:59 → 13:4112:380 min12:3948 min21 Dec
Sydney16:59 → 16:4112:290 min12:2948 min21 Dec
Suva17:59 → 17:4111:400 min11:4048 min21 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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