Ruling · Bhīṣma Dvādaśī · 1967

Tuesday 21 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 18 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 21 February

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 12:08  12:56 madhyāhna ends
Dvādaśī begins 12:25:56
11:2011:4412:0812:3212:5613:2013:44

30 of 48 minutes covered, the last 30

Midday of Wednesday 22 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 12:26 on Tue 21 Feb to 10:39 on Wed 22 Feb.

    1967-02-21T04:25:57Z → 1967-02-22T02:38:54Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 21st, 12:08–12:56 on the 22nd.

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

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 30 of 48 minutes on the 21st and 0 of 48 on the 22nd.

    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 1064 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 1967: Tuesday 21 February.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 1967 falls on Tuesday 21 February. Dvādaśī runs from 12:26 on Tue 21 Feb to 10:39 on Wed 22 Feb and covers 30 of 48 minutes of madhyāhna that midday.

ahargana.org/baoding/festivals/1967/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 21 Feb
Ahargaṇa, classicalDisc centre, no refractionTue 21 Feb
compat-drikpanchangComparison profileTue 21 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 21stCoveredMadhyāhna 22ndCoveredRuled
Los Angeles20:26 → 18:3911:4348 min11:430 min21 Feb
Chicago22:26 → 20:3911:4148 min11:410 min21 Feb
Jersey City23:26 → 21:3911:4648 min11:460 min21 Feb
Port of Spain00:26 → 22:3911:5648 min11:560 min21 Feb
London04:26 → 02:3911:5148 min11:510 min21 Feb
Durban06:26 → 04:3911:4548 min11:450 min21 Feb
Dubai08:26 → 06:3912:0948 min12:090 min21 Feb
Delhi09:56 → 08:0912:1148 min12:110 min21 Feb
Kolkata09:56 → 08:0911:2648 min11:260 min21 Feb
Singapore11:56 → 10:0912:2448 min12:240 min21 Feb
Sydney14:26 → 12:3911:450 min11:4548 min22 Feb
Suva16:26 → 14:3911:560 min11:5648 min22 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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