Ruling · Bhīṣma Dvādaśī · 1972

Thursday 27 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 501 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 26 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

Midday of Thursday 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

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 22:44 on Wed 26 Jan to 21:16 on Thu 27 Jan.

    1972-01-26T14:44:12Z → 1972-01-27T13:15:43Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 26th, 12:07–12:55 on the 27th.

    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 26th and 48 of 48 on the 27th.

    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 30045 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 1972: Thursday 27 January.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 1972 falls on Thursday 27 January. Dvādaśī runs from 22:44 on Wed 26 Jan to 21:16 on Thu 27 Jan and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1972/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 27 Jan
Ahargaṇa, classicalDisc centre, no refractionThu 27 Jan
compat-drikpanchangComparison profileThu 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 26thCoveredMadhyāhna 27thCoveredRuled
Los Angeles06:44 → 05:1611:4248 min11:420 min26 Jan
Chicago08:44 → 07:1611:3948 min11:400 min26 Jan
Jersey City09:44 → 08:1611:4548 min11:450 min26 Jan
Port of Spain10:44 → 09:1611:5548 min11:550 min26 Jan
London14:44 → 13:1611:490 min11:4948 min27 Jan
Durban16:44 → 15:1611:440 min11:4448 min27 Jan
Dubai18:44 → 17:1612:070 min12:0848 min27 Jan
Delhi20:14 → 18:4612:100 min12:1048 min27 Jan
Kolkata20:14 → 18:4611:250 min11:2548 min27 Jan
Singapore22:14 → 20:4612:230 min12:2348 min27 Jan
Sydney01:44 → 00:1612:430 min12:4448 min27 Jan
Suva02:44 → 01:1611:550 min11:5548 min27 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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