Ruling · Akhaṇḍa Dvādaśī · 2081

Saturday 13 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 13 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 Friday 12 December

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:48  12:36 madhyāhna ends
Dvādaśī begins 11:03:22
11:0011:2411:4812:1212:3613:0013:24

48 of 48 minutes covered

Midday of Saturday 13 December

Taken. Both middays qualify; the rule takes the second.

madhyāhna begins 11:49  12:37 madhyāhna ends
Dvādaśī ends 12:23:08
11:0111:2511:4912:1312:3713:0113:25

35 of 48 minutes covered, the first 35

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 11:03 on Fri 12 Dec to 12:23 on Sat 13 Dec.

    2081-12-12T03:03:23Z → 2081-12-13T04:23:08Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 12th, 11:49–12:37 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 48 of 48 minutes on the 12th and 35 of 48 on the 13th.

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

  4. 04

    Tie-break

    Both middays qualify. Paraviddhā: the second is taken.

    priority: paraviddha → paraviddha · margin 804 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 2081: Saturday 13 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 2081 falls on Saturday 13 December. Dvādaśī runs from 11:03 on Fri 12 Dec to 12:23 on Sat 13 Dec and covers 35 of 48 minutes of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.

ahargana.org/baoding/festivals/2081/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 13 Dec
Ahargaṇa, classicalDisc centre, no refractionSat 13 Dec
compat-drikpanchangComparison profileSat 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 Angeles19:03 → 20:2311:2348 min11:240 min12 Dec
Chicago21:03 → 22:2311:2148 min11:210 min12 Dec
Jersey City22:03 → 23:2311:2648 min11:270 min12 Dec
Port of Spain23:03 → 00:2311:3648 min11:370 min12 Dec
London03:03 → 04:2311:3148 min11:310 min12 Dec
Durban05:03 → 06:2311:2648 min11:260 min12 Dec
Dubai07:03 → 08:2311:4948 min11:490 min12 Dec
Delhi08:33 → 09:5311:5148 min11:520 min12 Dec
Kolkata08:33 → 09:5311:0748 min11:070 min12 Dec
Singapore11:03 → 12:2312:3548 min12:350 min12 Dec
Sydney14:03 → 15:2312:250 min12:2648 min13 Dec
Suva15:03 → 16:2311:360 min11:3748 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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