Ruling · Bhīṣma Dvādaśī · 1951

Sunday 18 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 546 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 18 February

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 12:09  12:57 madhyāhna ends
11:2111:4512:0912:3312:5713:2113:45

48 of 48 minutes covered

Midday of Monday 19 February

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 12:08  12:56 madhyāhna ends
11:2011:4412:0812:3212:5613:2013:44

0 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 01:17 on Sun 18 Feb to 03:03 on Mon 19 Feb.

    1951-02-17T17:17:17Z → 1951-02-18T19:02:39Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 18th, 12:08–12:56 on the 19th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.

    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 32748 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 1951: Sunday 18 February.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 1951 falls on Sunday 18 February. Dvādaśī runs from 01:17 on Sun 18 Feb to 03:03 on Mon 19 Feb and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1951/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 18 Feb
Ahargaṇa, classicalDisc centre, no refractionSun 18 Feb
compat-drikpanchangComparison profileSun 18 Feb
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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles09:17 → 11:0311:4348 min11:430 min17 Feb
Chicago11:17 → 13:0311:4148 min11:4148 min17 Feb
Jersey City12:17 → 14:0311:4717 min11:4748 min17 Feb
Port of Spain13:17 → 15:0311:560 min11:5648 min18 Feb
London17:17 → 19:0311:510 min11:5148 min18 Feb
Durban19:17 → 21:0311:460 min11:4648 min18 Feb
Dubai21:17 → 23:0312:090 min12:0948 min18 Feb
Delhi22:47 → 00:3312:110 min12:1148 min18 Feb
Kolkata22:47 → 00:3311:270 min11:2748 min18 Feb
Singapore00:47 → 02:3312:250 min12:2548 min18 Feb
Sydney03:17 → 05:0311:450 min11:4548 min18 Feb
Suva05:17 → 07:0311:560 min11:5648 min18 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

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