Ruling · Akhaṇḍa Dvādaśī · 1948

Monday 13 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 300 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 Sunday 12 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

Midday of Monday 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

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 17:35 on Sun 12 Dec to 18:32 on Mon 13 Dec.

    1948-12-12T09:35:18Z → 1948-12-13T10:32:09Z

  2. 02

    Kāla

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

    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 12th and 48 of 48 on the 13th.

    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 17972 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 1948: Monday 13 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 1948 falls on Monday 13 December. Dvādaśī runs from 17:35 on Sun 12 Dec to 18:32 on Mon 13 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1948/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 13 Dec
Ahargaṇa, classicalDisc centre, no refractionMon 13 Dec
compat-drikpanchangComparison profileMon 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles02:35 → 03:3212:2348 min12:230 min12 Dec
Chicago03:35 → 04:3211:2048 min11:210 min12 Dec
Jersey City04:35 → 05:3211:2648 min11:270 min12 Dec
Port of Spain05:35 → 06:3211:3648 min11:360 min12 Dec
London09:35 → 10:3211:3048 min11:310 min12 Dec
Durban11:35 → 12:3211:2638 min11:2648 min13 Dec
Dubai13:35 → 14:3211:480 min11:4948 min13 Dec
Delhi15:05 → 16:0211:510 min11:5148 min13 Dec
Kolkata15:05 → 16:0211:060 min11:0748 min13 Dec
Singapore17:05 → 18:0212:040 min12:0548 min13 Dec
Sydney19:35 → 20:3211:250 min11:2548 min13 Dec
Suva21:35 → 22:3211:360 min11:3648 min13 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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