Ruling · Akhaṇḍa Dvādaśī · 1990

Thursday 29 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 372 minutes.

Decide it for

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 Thursday 29 November

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:42  12:30 madhyāhna ends
10:5411:1811:4212:0612:3012:5413:18

48 of 48 minutes covered

Midday of Friday 30 November

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:43  12:31 madhyāhna ends
10:5511:1911:4312:0712:3112:5513:19

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 05:30 on Thu 29 Nov to 02:43 on Fri 30 Nov.

    1990-11-28T21:30:09Z → 1990-11-29T18:42:56Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:42–12:30 on the 29th, 11:43–12:31 on the 30th.

    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 29th and 0 of 48 on the 30th.

    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 22321 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 1990: Thursday 29 November.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 1990 falls on Thursday 29 November. Dvādaśī runs from 05:30 on Thu 29 Nov to 02:43 on Fri 30 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1990/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 29 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 29 Nov
compat-drikpanchangComparison profileThu 29 Nov
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 28thCoveredMadhyāhna 29thCoveredRuled
Los Angeles13:30 → 10:4311:170 min11:170 min29 Nov
Chicago15:30 → 12:4311:140 min11:1548 min29 Nov
Jersey City16:30 → 13:4311:200 min11:2148 min29 Nov
Port of Spain17:30 → 14:4311:300 min11:3048 min29 Nov
London21:30 → 18:4311:240 min11:2548 min29 Nov
Durban23:30 → 20:4311:200 min11:2048 min29 Nov
Dubai01:30 → 22:4311:430 min11:4348 min29 Nov
Delhi03:00 → 00:1311:450 min11:4548 min29 Nov
Kolkata03:00 → 00:1311:000 min11:0148 min29 Nov
Singapore05:30 → 02:4312:280 min12:2948 min29 Nov
Sydney08:30 → 05:4312:190 min12:1948 min29 Nov
Suva09:30 → 06:4311:300 min11:3048 min29 Nov
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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