Ruling · Akhaṇḍa Dvādaśī · 1910

Tuesday 13 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 183 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 13 December

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:48  12:36 madhyāhna ends
11:0011:2411:4812:1212:3613:0013:24

48 of 48 minutes covered

Midday of Wednesday 14 December

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:48  12:36 madhyāhna ends
11:0011:2411:4812:1212:3613:0013:24

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 08:45 on Tue 13 Dec to 05:43 on Wed 14 Dec.

    1910-12-13T00:45:03Z → 1910-12-13T21:42:51Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 13th, 11:48–12:36 on the 14th.

    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 13th and 0 of 48 on the 14th.

    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 10974 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 1910: Tuesday 13 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 1910 falls on Tuesday 13 December. Dvādaśī runs from 08:45 on Tue 13 Dec to 05:43 on Wed 14 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1910/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 13 Dec
Ahargaṇa, classicalDisc centre, no refractionTue 13 Dec
compat-drikpanchangComparison profileTue 13 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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles16:45 → 13:4311:2348 min11:240 min13 Dec
Chicago18:45 → 15:4311:2148 min11:210 min13 Dec
Jersey City19:45 → 16:4311:2648 min11:270 min13 Dec
Port of Spain20:45 → 17:4311:3648 min11:370 min13 Dec
London00:45 → 21:4311:3048 min11:310 min13 Dec
Durban02:45 → 23:4311:2648 min11:260 min13 Dec
Dubai04:26 → 01:2411:3048 min11:300 min13 Dec
Delhi06:15 → 03:1311:5148 min11:510 min13 Dec
Kolkata06:15 → 03:1311:0648 min11:070 min13 Dec
Singapore07:45 → 04:4311:3448 min11:350 min13 Dec
Sydney10:45 → 07:4311:2548 min11:260 min13 Dec
Suva12:40 → 09:3811:310 min11:320 min14 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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