Ruling · Bhīṣma Dvādaśī · 1929

Wednesday 20 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 24 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 Wednesday 20 February

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 12:08  12:56 madhyāhna ends
Dvādaśī begins 12:32:31
11:2011:4412:0812:3212:5613:2013:44

24 of 48 minutes covered, the last 24

Midday of Thursday 21 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 12:33 on Wed 20 Feb to 09:59 on Thu 21 Feb.

    1929-02-20T04:32:32Z → 1929-02-21T01:58:38Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 20th, 12:08–12:56 on the 21st.

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

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 24 of 48 minutes on the 20th and 0 of 48 on the 21st.

    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 1430 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 1929: Wednesday 20 February.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 1929 falls on Wednesday 20 February. Dvādaśī runs from 12:33 on Wed 20 Feb to 09:59 on Thu 21 Feb and covers 24 of 48 minutes of madhyāhna that midday.

ahargana.org/baoding/festivals/1929/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 20 Feb
Ahargaṇa, classicalDisc centre, no refractionWed 20 Feb
compat-drikpanchangComparison profileWed 20 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 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles20:33 → 17:5911:4348 min11:430 min20 Feb
Chicago22:33 → 19:5911:4148 min11:410 min20 Feb
Jersey City23:33 → 20:5911:4648 min11:460 min20 Feb
Port of Spain00:33 → 21:5911:5648 min11:560 min20 Feb
London04:33 → 01:5911:5148 min11:510 min20 Feb
Durban06:33 → 03:5911:4648 min11:450 min20 Feb
Dubai08:33 → 05:5912:0948 min12:090 min20 Feb
Delhi10:03 → 07:2912:1148 min12:110 min20 Feb
Kolkata10:03 → 07:2911:2748 min11:270 min20 Feb
Singapore11:33 → 08:5911:5548 min11:540 min20 Feb
Sydney14:33 → 11:5911:450 min11:4514 min21 Feb
Suva16:33 → 13:5911:560 min11:5648 min21 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

About Ahargaṇa