Ruling · Bhīṣma Dvādaśī · 2013

Friday 22 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 551 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 Friday 22 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

Midday of Saturday 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

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 01:16 on Fri 22 Feb to 02:56 on Sat 23 Feb.

    2013-02-21T17:15:52Z → 2013-02-22T18:56:26Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 22nd, 12:08–12:56 on the 23rd.

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

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 22nd and 0 of 48 on the 23rd.

    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 33081 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 2013: Friday 22 February.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 2013 falls on Friday 22 February. Dvādaśī runs from 01:16 on Fri 22 Feb to 02:56 on Sat 23 Feb and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2013/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 22 Feb
Ahargaṇa, classicalDisc centre, no refractionFri 22 Feb
compat-drikpanchangComparison profileFri 22 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 Angeles09:16 → 10:5611:4348 min11:430 min21 Feb
Chicago11:16 → 12:5611:4048 min11:4048 min21 Feb
Jersey City12:16 → 13:5611:4618 min11:4648 min21 Feb
Port of Spain13:16 → 14:5611:560 min11:5648 min22 Feb
London17:16 → 18:5611:500 min11:5048 min22 Feb
Durban19:16 → 20:5611:450 min11:4548 min22 Feb
Dubai21:16 → 22:5612:090 min12:0848 min22 Feb
Delhi22:46 → 00:2612:110 min12:1148 min22 Feb
Kolkata22:46 → 00:2611:260 min11:2648 min22 Feb
Singapore01:16 → 02:5612:540 min12:5448 min22 Feb
Sydney04:16 → 05:5612:450 min12:4448 min22 Feb
Suva05:16 → 06:5611:560 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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