Ruling · Bhīṣma Dvādaśī · 1955

Friday 4 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 141 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 Thursday 3 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

Midday of Friday 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

Dvādaśī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 17:30 on Thu 3 Feb to 15:17 on Fri 4 Feb.

    1955-02-03T09:29:50Z → 1955-02-04T07:17:21Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 3rd, 12:08–12:56 on the 4th.

    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 3rd and 48 of 48 on the 4th.

    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 8463 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 1955: Friday 4 February.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 1955 falls on Friday 4 February. Dvādaśī runs from 17:30 on Thu 3 Feb to 15:17 on Fri 4 Feb and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1955/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 4 Feb
Ahargaṇa, classicalDisc centre, no refractionFri 4 Feb
compat-drikpanchangComparison profileFri 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 4thCoveredRuled
Los Angeles01:30 → 23:1711:4348 min11:430 min3 Feb
Chicago03:30 → 01:1711:4148 min11:410 min3 Feb
Jersey City04:30 → 02:1711:4648 min11:470 min3 Feb
Port of Spain05:30 → 03:1711:5648 min11:560 min3 Feb
London09:30 → 07:1711:5148 min11:510 min3 Feb
Durban11:30 → 09:1711:4648 min11:460 min3 Feb
Dubai13:30 → 11:1712:090 min12:090 min4 Feb
Delhi15:00 → 12:4712:110 min12:1136 min4 Feb
Kolkata15:00 → 12:4711:270 min11:2748 min4 Feb
Singapore17:00 → 14:4712:240 min12:2548 min4 Feb
Sydney19:30 → 17:1711:450 min11:4548 min4 Feb
Suva21:30 → 19:1711:560 min11:5648 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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