Ruling · Akhaṇḍa Dvādaśī · 1961

Monday 18 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 77 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 Monday 18 December

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

48 of 48 minutes covered

Midday of Tuesday 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

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 10:34 on Mon 18 Dec to 09:31 on Tue 19 Dec.

    1961-12-18T02:33:53Z → 1961-12-19T01:31:29Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 18th, 11:51–12:39 on the 19th.

    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 18th and 0 of 48 on the 19th.

    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 4602 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 1961: Monday 18 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 1961 falls on Monday 18 December. Dvādaśī runs from 10:34 on Mon 18 Dec to 09:31 on Tue 19 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1961/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 18 Dec
Ahargaṇa, classicalDisc centre, no refractionMon 18 Dec
compat-drikpanchangComparison profileMon 18 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 18thCoveredMadhyāhna 19thCoveredRuled
Los Angeles18:34 → 17:3111:2648 min11:260 min18 Dec
Chicago20:34 → 19:3111:2348 min11:240 min18 Dec
Jersey City21:34 → 20:3111:2948 min11:290 min18 Dec
Port of Spain22:34 → 21:3111:3948 min11:390 min18 Dec
London02:34 → 01:3111:3348 min11:340 min18 Dec
Durban04:34 → 03:3111:2848 min11:290 min18 Dec
Dubai06:34 → 05:3111:5148 min11:520 min18 Dec
Delhi08:04 → 07:0111:5448 min11:540 min18 Dec
Kolkata08:04 → 07:0111:0948 min11:100 min18 Dec
Singapore10:04 → 09:0112:0748 min12:080 min18 Dec
Sydney12:34 → 11:3111:280 min11:283 min19 Dec
Suva14:34 → 13:3111:390 min11:3948 min19 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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