Ruling · Bhīṣma Dvādaśī · 2012

Saturday 4 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 240 minutes.

Decide it for

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 4 February

Taken. The only midday Dvādaśī reaches.

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

48 of 48 minutes covered

Midday of Sunday 5 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 07:26 on Sat 4 Feb to 08:08 on Sun 5 Feb.

    2012-02-03T23:26:28Z → 2012-02-05T00:07:59Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 4th, 12:08–12:56 on the 5th.

    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 4th and 0 of 48 on the 5th.

    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 14420 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 2012: Saturday 4 February.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 2012 falls on Saturday 4 February. Dvādaśī runs from 07:26 on Sat 4 Feb to 08:08 on Sun 5 Feb and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2012/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 4 Feb
Ahargaṇa, classicalDisc centre, no refractionSat 4 Feb
compat-drikpanchangComparison profileSat 4 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 3rdCoveredMadhyāhna 5thCoveredRuled
Los Angeles15:26 → 16:0811:430 min11:430 min4 Feb
Chicago17:26 → 18:0811:410 min11:410 min4 Feb
Jersey City18:26 → 19:0811:460 min11:470 min4 Feb
Port of Spain19:26 → 20:0811:560 min11:560 min4 Feb
London23:26 → 00:0811:510 min11:510 min4 Feb
Durban01:26 → 02:0811:450 min11:460 min4 Feb
Dubai03:26 → 04:0812:090 min12:090 min4 Feb
Delhi04:56 → 05:3812:110 min12:110 min4 Feb
Kolkata04:56 → 05:3811:260 min11:270 min4 Feb
Singapore07:26 → 08:0812:540 min12:550 min4 Feb
Sydney10:26 → 11:0812:450 min12:450 min4 Feb
Suva11:26 → 12:0811:560 min11:5612 min4 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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