Ruling · Akhaṇḍa Dvādaśī · 1988

Tuesday 20 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 267 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 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 Tuesday 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 18:53 on Mon 19 Dec to 17:07 on Tue 20 Dec.

    1988-12-19T10:52:55Z → 1988-12-20T09:06:50Z

  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 16025 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 1988: Tuesday 20 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 1988 falls on Tuesday 20 December. Dvādaśī runs from 18:53 on Mon 19 Dec to 17:07 on Tue 20 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1988/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 20 Dec
Ahargaṇa, classicalDisc centre, no refractionTue 20 Dec
compat-drikpanchangComparison profileTue 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 Angeles02:53 → 01:0711:2648 min11:270 min19 Dec
Chicago04:53 → 03:0711:2448 min11:240 min19 Dec
Jersey City05:53 → 04:0711:3048 min11:300 min19 Dec
Port of Spain06:53 → 05:0711:3948 min11:400 min19 Dec
London10:53 → 09:0711:3448 min11:340 min19 Dec
Durban12:53 → 11:0711:290 min11:300 min20 Dec
Dubai14:53 → 13:0711:520 min11:5248 min20 Dec
Delhi16:23 → 14:3711:540 min11:5548 min20 Dec
Kolkata16:23 → 14:3711:100 min11:1048 min20 Dec
Singapore18:53 → 17:0712:380 min12:3848 min20 Dec
Sydney21:53 → 20:0712:280 min12:2948 min20 Dec
Suva22:53 → 21:0711:390 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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