Ruling · Akhaṇḍa Dvādaśī · 2064

Saturday 20 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 466 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 Friday 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

Midday of Saturday 20 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 20:25 on Fri 19 Dec to 22:32 on Sat 20 Dec.

    2064-12-19T12:25:05Z → 2064-12-20T14:32:03Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 19th, 11:52–12:40 on the 20th.

    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 19th and 48 of 48 on the 20th.

    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 27936 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 2064: Saturday 20 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 2064 falls on Saturday 20 December. Dvādaśī runs from 20:25 on Fri 19 Dec to 22:32 on Sat 20 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2064/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 20 Dec
Ahargaṇa, classicalDisc centre, no refractionSat 20 Dec
compat-drikpanchangComparison profileSat 20 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 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles04:25 → 06:3211:2748 min11:270 min19 Dec
Chicago06:25 → 08:3211:2448 min11:250 min19 Dec
Jersey City07:25 → 09:3211:3048 min11:300 min19 Dec
Port of Spain08:25 → 10:3211:4048 min11:400 min19 Dec
London12:25 → 14:3211:340 min11:3548 min20 Dec
Durban14:25 → 16:3211:290 min11:3048 min20 Dec
Dubai16:25 → 18:3211:520 min11:5348 min20 Dec
Delhi17:55 → 20:0211:540 min11:5548 min20 Dec
Kolkata17:55 → 20:0211:100 min11:1048 min20 Dec
Singapore20:25 → 22:3212:380 min12:3848 min20 Dec
Sydney23:25 → 01:3212:280 min12:2948 min20 Dec
Suva00:25 → 02:3211:400 min11:4048 min20 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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