Ruling · Bhīṣma Dvādaśī · 1986

Friday 21 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 630 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 Thursday 20 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 21 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 23:26 on Thu 20 Feb to 00:18 on Sat 22 Feb.

    1986-02-20T15:25:47Z → 1986-02-21T16:18:04Z

  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 0 of 48 minutes on the 20th and 48 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 37772 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 1986: Friday 21 February.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 1986 falls on Friday 21 February. Dvādaśī runs from 23:26 on Thu 20 Feb to 00:18 on Sat 22 Feb and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1986/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 21 Feb
Ahargaṇa, classicalDisc centre, no refractionFri 21 Feb
compat-drikpanchangComparison profileFri 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 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles07:26 → 08:1811:4348 min11:430 min20 Feb
Chicago09:26 → 10:1811:4148 min11:410 min20 Feb
Jersey City10:26 → 11:1811:4648 min11:460 min20 Feb
Port of Spain11:26 → 12:1811:5648 min11:5622 min20 Feb
London15:26 → 16:1811:510 min11:5148 min21 Feb
Durban17:26 → 18:1811:450 min11:4548 min21 Feb
Dubai19:26 → 20:1812:090 min12:0948 min21 Feb
Delhi20:56 → 21:4812:110 min12:1148 min21 Feb
Kolkata20:56 → 21:4811:270 min11:2648 min21 Feb
Singapore23:26 → 00:1812:540 min12:5448 min21 Feb
Sydney02:26 → 03:1812:450 min12:4548 min21 Feb
Suva03:26 → 04:1811:560 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

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