Ruling · Bhīṣma Dvādaśī · 1945

Thursday 25 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 73 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 24 January

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 13:06  13:54 madhyāhna ends
12:1812:4213:0613:3013:5414:1814:42

0 of 48 minutes covered

Midday of Thursday 25 January

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 13:07  13:55 madhyāhna ends
12:1912:4313:0713:3113:5514:1914:43

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 15:46 on Wed 24 Jan to 15:08 on Thu 25 Jan.

    1945-01-24T06:46:07Z → 1945-01-25T06:08:02Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 13:06–13:54 on the 24th, 13:07–13:55 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 4402 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 1945: Thursday 25 January.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 1945 falls on Thursday 25 January. Dvādaśī runs from 15:46 on Wed 24 Jan to 15:08 on Thu 25 Jan and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1945/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 25 Jan
Ahargaṇa, classicalDisc centre, no refractionThu 25 Jan
compat-drikpanchangComparison profileThu 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 Angeles23:46 → 23:0812:4148 min12:420 min24 Jan
Chicago01:46 → 01:0812:3948 min12:390 min24 Jan
Jersey City02:46 → 02:0812:4548 min12:450 min24 Jan
Port of Spain03:46 → 03:0812:5448 min12:550 min24 Jan
London07:46 → 07:0812:4948 min12:490 min24 Jan
Durban08:46 → 08:0811:4448 min11:440 min24 Jan
Dubai10:46 → 10:0812:0748 min12:070 min24 Jan
Delhi13:16 → 12:3813:0941 min13:100 min24 Jan
Kolkata13:16 → 12:3812:250 min12:2513 min25 Jan
Singapore15:46 → 15:0813:530 min13:5348 min25 Jan
Sydney16:46 → 16:0811:430 min11:4348 min25 Jan
Suva18:46 → 18:0811:540 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

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