Ruling · Bhīṣma Dvādaśī · 2094

Wednesday 27 January

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 3 min 00 s away. Say “contested”.

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 Wednesday 27 January

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

madhyāhna begins 12:07  12:55 madhyāhna ends
11:1911:4312:0712:3112:5513:1913:43

48 of 48 minutes covered

Midday of Thursday 28 January

Qualifies with 45 of 48 minutes. Not taken.

madhyāhna begins 12:07  12:55 madhyāhna ends
Dvādaśī ends 12:52:27
11:1911:4312:0712:3112:5513:1913:43

45 of 48 minutes covered, the first 45

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 10:44 on Wed 27 Jan to 12:52 on Thu 28 Jan.

    2094-01-27T02:44:00Z → 2094-01-28T04:52:28Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 27th, 12:07–12:55 on the 28th.

    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 27th and 45 of 48 on the 28th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 180 s < 300 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 2094: Wednesday 27 January.

    confidence: boundary (margin)

Say it like this

In Baoding, Bhīṣma Dvādaśī 2094 falls on Wednesday 27 January. Dvādaśī runs from 10:44 on Wed 27 Jan to 12:52 on Thu 28 Jan and covers all of madhyāhna that midday. It also reaches the next midday for 45 minutes; by the rule the first midday is taken. It is 3 min 00 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/2094/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 27 Jan
Ahargaṇa, classicalDisc centre, no refractionWed 27 Jan
compat-drikpanchangComparison profileWed 27 Jan
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/bhishma-dvadashi · ruleset 2026.3-draft

Month
Māgha, amānta
Pakṣa · aṅga
Śukla · Dvādaśī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 105

“S 12 Bhisma dvadasi (purvaviddha), Amalaki dvadasi, Santana dvadasi, Varaha dvadasi” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDvādaśīMadhyāhna 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles18:44 → 20:5211:4248 min11:420 min27 Jan
Chicago20:44 → 22:5211:4048 min11:400 min27 Jan
Jersey City21:44 → 23:5211:4648 min11:460 min27 Jan
Port of Spain22:44 → 00:5211:5548 min11:550 min27 Jan
London02:44 → 04:5211:5048 min11:500 min27 Jan
Durban04:44 → 06:5211:4548 min11:450 min27 Jan
Dubai06:44 → 08:5212:0848 min12:080 min27 Jan
Delhi08:14 → 10:2212:1048 min12:100 min27 Jan
Kolkata08:14 → 10:2211:2648 min11:260 min27 Jan
Singapore10:44 → 12:5212:5448 min12:540 min27 Jan
Sydney13:44 → 15:5212:440 min12:4448 min28 Jan
Suva14:44 → 16:5211:550 min11:5548 min28 Jan
Profile · tradition
pac-rp@2026.1 · smarta
Rule
bhishma-dvadashi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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