Ruling · Bhīṣma Dvādaśī · 2021

Wednesday 24 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 460 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 Tuesday 23 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 Wednesday 24 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 20:36 on Tue 23 Feb to 20:36 on Wed 24 Feb.

    2021-02-23T12:35:48Z → 2021-02-24T12:36:07Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 23rd, 12:08–12:56 on the 24th.

    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 23rd and 48 of 48 on the 24th.

    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 27601 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 2021: Wednesday 24 February.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 2021 falls on Wednesday 24 February. Dvādaśī runs from 20:36 on Tue 23 Feb to 20:36 on Wed 24 Feb and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2021/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 24 Feb
Ahargaṇa, classicalDisc centre, no refractionWed 24 Feb
compat-drikpanchangComparison profileWed 24 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 23rdCoveredMadhyāhna 24thCoveredRuled
Los Angeles04:36 → 04:3611:4248 min11:420 min23 Feb
Chicago06:36 → 06:3611:4048 min11:400 min23 Feb
Jersey City07:36 → 07:3611:4648 min11:460 min23 Feb
Port of Spain08:36 → 08:3611:5548 min11:550 min23 Feb
London12:36 → 12:3611:502 min11:5046 min23 Feb
Durban14:36 → 14:3611:450 min11:4548 min24 Feb
Dubai16:36 → 16:3612:080 min12:0848 min24 Feb
Delhi18:06 → 18:0612:110 min12:1048 min24 Feb
Kolkata18:06 → 18:0611:260 min11:2648 min24 Feb
Singapore20:36 → 20:3612:540 min12:5448 min24 Feb
Sydney23:36 → 23:3612:440 min12:4448 min24 Feb
Suva00:36 → 00:3611:560 min11:5548 min24 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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