Ruling · Bhīṣma Dvādaśī · 1964

Sunday 26 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 111 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 Saturday 25 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 Sunday 26 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 17:25 on Sat 25 Jan to 14:46 on Sun 26 Jan.

    1964-01-25T09:24:32Z → 1964-01-26T06:46:00Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:06–12:54 on the 25th, 12:07–12:55 on the 26th.

    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 25th and 48 of 48 on the 26th.

    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 6677 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 1964: Sunday 26 January.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 1964 falls on Sunday 26 January. Dvādaśī runs from 17:25 on Sat 25 Jan to 14:46 on Sun 26 Jan and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1964/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 26 Jan
Ahargaṇa, classicalDisc centre, no refractionSun 26 Jan
compat-drikpanchangComparison profileSun 26 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 25thCoveredMadhyāhna 26thCoveredRuled
Los Angeles01:25 → 22:4611:4148 min11:420 min25 Jan
Chicago03:25 → 00:4611:3948 min11:390 min25 Jan
Jersey City04:25 → 01:4611:4548 min11:450 min25 Jan
Port of Spain05:25 → 02:4611:5448 min11:550 min25 Jan
London09:25 → 06:4611:4948 min11:490 min25 Jan
Durban11:25 → 08:4611:4448 min11:440 min25 Jan
Dubai13:25 → 10:4612:070 min12:070 min26 Jan
Delhi14:55 → 12:1612:090 min12:106 min26 Jan
Kolkata14:55 → 12:1611:250 min11:2548 min26 Jan
Singapore16:55 → 14:1612:230 min12:2348 min26 Jan
Sydney19:25 → 16:4611:430 min11:4348 min26 Jan
Suva21:25 → 18:4611:540 min11:5548 min26 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