Ruling · Bhīṣma Dvādaśī · 2025

Sunday 9 February

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 381 minutes.

Decide it for

UjjainDelhiKolkataSingaporeSydneyJersey City

23°11′ N 75°47′ E · Asia/Kolkata · GeoNames 1253914

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Saturday 8 February

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 12:17  13:05 madhyāhna ends
11:2911:5312:1712:4113:0513:2913:53

0 of 48 minutes covered

Midday of Sunday 9 February

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 12:17  13:05 madhyāhna ends
11:2911:5312:1712:4113:0513:2913:53

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 20:16 on Sat 8 Feb to 19:26 on Sun 9 Feb.

    2025-02-08T14:46:28Z → 2025-02-09T13:55:47Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:17–13:05 on the 8th, 12:17–13:05 on the 9th.

    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 8th and 48 of 48 on the 9th.

    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 22835 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Ujjain, 2025: Sunday 9 February.

    confidence: determinate

Say it like this

In Ujjain, Bhīṣma Dvādaśī 2025 falls on Sunday 9 February. Dvādaśī runs from 20:16 on Sat 8 Feb to 19:26 on Sun 9 Feb and covers all of madhyāhna that midday.

ahargana.org/ujjain/festivals/2025/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 9 Feb
Ahargaṇa, classicalDisc centre, no refractionSun 9 Feb
compat-drikpanchangComparison profileSun 9 Feb
No institution has a recorded ruling for Ujjain.

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 8thCoveredMadhyāhna 9thCoveredRuled
Los Angeles06:46 → 05:5611:4348 min11:430 min8 Feb
Chicago08:46 → 07:5611:4148 min11:410 min8 Feb
Jersey City09:46 → 08:5611:4748 min11:470 min8 Feb
Port of Spain10:46 → 09:5611:5648 min11:560 min8 Feb
London14:46 → 13:5611:510 min11:5148 min9 Feb
Durban16:46 → 15:5611:460 min11:4648 min9 Feb
Dubai18:46 → 17:5612:090 min12:0948 min9 Feb
Delhi20:16 → 19:2612:110 min12:1148 min9 Feb
Kolkata20:16 → 19:2611:270 min11:2748 min9 Feb
Singapore22:46 → 21:5612:550 min12:5548 min9 Feb
Sydney01:46 → 00:5612:450 min12:4548 min9 Feb
Suva02:46 → 01:5611:560 min11:5648 min9 Feb
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