Ruling · Bhīṣma Dvādaśī · 1926

Monday 25 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 452 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 Sunday 24 January

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 12:06  12:54 madhyāhna ends
11:1811:4212:0612:3012:5413:1813:42

0 of 48 minutes covered

Midday of Monday 25 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 20:26 on Sun 24 Jan to 22:16 on Mon 25 Jan.

    1926-01-24T12:26:09Z → 1926-01-25T14:15:51Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:06–12:54 on the 24th, 12:07–12:55 on the 25th.

    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 24th and 48 of 48 on the 25th.

    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 27106 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 1926: Monday 25 January.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 1926 falls on Monday 25 January. Dvādaśī runs from 20:26 on Sun 24 Jan to 22:16 on Mon 25 Jan and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1926/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 25 Jan
Ahargaṇa, classicalDisc centre, no refractionMon 25 Jan
compat-drikpanchangComparison profileMon 25 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 24thCoveredMadhyāhna 25thCoveredRuled
Los Angeles04:26 → 06:1611:4148 min11:420 min24 Jan
Chicago06:26 → 08:1611:3948 min11:390 min24 Jan
Jersey City07:26 → 09:1611:4548 min11:450 min24 Jan
Port of Spain08:26 → 10:1611:5448 min11:550 min24 Jan
London12:26 → 14:1611:4911 min11:4948 min24 Jan
Durban14:26 → 16:1611:440 min11:4448 min25 Jan
Dubai16:26 → 18:1612:070 min12:0748 min25 Jan
Delhi17:56 → 19:4612:090 min12:1048 min25 Jan
Kolkata17:56 → 19:4611:250 min11:2548 min25 Jan
Singapore19:26 → 21:1611:530 min11:5348 min25 Jan
Sydney22:26 → 00:1611:430 min11:4348 min25 Jan
Suva00:26 → 02:1611:540 min11:5448 min25 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

About Ahargaṇa