Ruling · Akhaṇḍa Dvādaśī · 1989

Sunday 10 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 59 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 Saturday 9 December

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:46  12:34 madhyāhna ends
10:5811:2211:4612:1012:3412:5813:22

0 of 48 minutes covered

Midday of Sunday 10 December

Taken. Dvādaśī reaches neither midday; the rule takes the second day.

madhyāhna begins 11:47  12:35 madhyāhna ends
10:5911:2311:4712:1112:3512:5913:23

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 13:33 on Sat 9 Dec to 10:23 on Sun 10 Dec.

    1989-12-09T05:33:22Z → 1989-12-10T02:23:20Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 9th, 11:47–12:35 on the 10th.

    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 9th and 0 of 48 on the 10th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: paraviddha → second-day · margin 3543 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 1989: Sunday 10 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 1989 falls on Sunday 10 December. Dvādaśī runs from 13:33 on Sat 9 Dec to 10:23 on Sun 10 Dec, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/1989/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 10 Dec
Ahargaṇa, classicalDisc centre, no refractionSun 10 Dec
compat-drikpanchangComparison profileSun 10 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 9thCoveredMadhyāhna 10thCoveredRuled
Los Angeles21:33 → 18:2311:2148 min11:220 min9 Dec
Chicago23:33 → 20:2311:1948 min11:190 min9 Dec
Jersey City00:33 → 21:2311:2548 min11:250 min9 Dec
Port of Spain01:33 → 22:2311:3548 min11:350 min9 Dec
London05:33 → 02:2311:2948 min11:290 min9 Dec
Durban07:33 → 04:2311:2448 min11:250 min9 Dec
Dubai09:33 → 06:2311:4748 min11:470 min9 Dec
Delhi11:03 → 07:5311:4948 min11:500 min9 Dec
Kolkata11:03 → 07:5311:0548 min11:050 min9 Dec
Singapore13:33 → 10:2312:330 min12:330 min10 Dec
Sydney16:33 → 13:2312:230 min12:2448 min10 Dec
Suva17:33 → 14:2311:350 min11:3548 min10 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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