Ruling · Bhīṣma Dvādaśī · 1915

Wednesday 27 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 48 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 Wednesday 27 January

Taken. The only midday Dvādaśī reaches.

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

Dvādaśī is absent from madhyāhna. Not taken.

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

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 09:46 on Wed 27 Jan to 11:19 on Thu 28 Jan.

    1915-01-27T01:45:31Z → 1915-01-28T03:19:07Z

  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 0 of 48 on the 28th.

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

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 2888 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 1915: Wednesday 27 January.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 1915 falls on Wednesday 27 January. Dvādaśī runs from 09:46 on Wed 27 Jan to 11:19 on Thu 28 Jan and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1915/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 Angeles17:46 → 19:1911:4248 min11:420 min27 Jan
Chicago19:46 → 21:1911:4048 min11:400 min27 Jan
Jersey City20:46 → 22:1911:4548 min11:460 min27 Jan
Port of Spain21:46 → 23:1911:5548 min11:550 min27 Jan
London01:46 → 03:1911:5048 min11:500 min27 Jan
Durban03:46 → 05:1911:4448 min11:450 min27 Jan
Dubai05:27 → 07:0011:4948 min11:490 min27 Jan
Delhi07:16 → 08:4912:1048 min12:100 min27 Jan
Kolkata07:16 → 08:4911:2548 min11:260 min27 Jan
Singapore08:46 → 10:1911:5348 min11:540 min27 Jan
Sydney11:46 → 13:1911:4446 min11:4448 min27 Jan
Suva13:41 → 15:1411:500 min11:5048 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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