Ruling · Akhaṇḍa Dvādaśī · 1937

Wednesday 15 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 57 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 Tuesday 14 December

Dvādaśī is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

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

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 16:24 on Tue 14 Dec to 13:34 on Wed 15 Dec.

    1937-12-14T08:24:12Z → 1937-12-15T05:33:35Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 14th, 11:49–12:37 on the 15th.

    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 14th and 48 of 48 on the 15th.

    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 3391 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 1937: Wednesday 15 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 1937 falls on Wednesday 15 December. Dvādaśī runs from 16:24 on Tue 14 Dec to 13:34 on Wed 15 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1937/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 Angeles00:24 → 21:3411:2448 min11:240 min14 Dec
Chicago02:24 → 23:3411:2148 min11:220 min14 Dec
Jersey City03:24 → 00:3411:2748 min11:270 min14 Dec
Port of Spain04:24 → 01:3411:3748 min11:370 min14 Dec
London08:24 → 05:3411:3148 min11:320 min14 Dec
Durban10:24 → 07:3411:2748 min11:270 min14 Dec
Dubai12:24 → 09:3411:4913 min11:500 min14 Dec
Delhi13:54 → 11:0411:520 min11:520 min15 Dec
Kolkata13:54 → 11:0411:070 min11:080 min15 Dec
Singapore15:44 → 12:5411:550 min11:5648 min15 Dec
Sydney18:24 → 15:3411:260 min11:2648 min15 Dec
Suva20:24 → 17:3411:370 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

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