Ruling · Bhīṣma Dvādaśī · 1981

Sunday 15 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 236 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 Sunday 15 February

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 12:09  12:57 madhyāhna ends
11:2111:4512:0912:3312:5713:2113:45

48 of 48 minutes covered

Midday of Monday 16 February

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 12:09  12:57 madhyāhna ends
11:2111:4512:0912:3312:5713:2113:45

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 08:12 on Sun 15 Feb to 07:18 on Mon 16 Feb.

    1981-02-15T00:12:12Z → 1981-02-15T23:18:20Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 15th, 12:09–12:57 on the 16th.

    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 15th and 0 of 48 on the 16th.

    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 14185 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 1981: Sunday 15 February.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 1981 falls on Sunday 15 February. Dvādaśī runs from 08:12 on Sun 15 Feb to 07:18 on Mon 16 Feb and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1981/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 15 Feb
Ahargaṇa, classicalDisc centre, no refractionSun 15 Feb
compat-drikpanchangComparison profileSun 15 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 15thCoveredMadhyāhna 16thCoveredRuled
Los Angeles16:12 → 15:1811:4348 min11:430 min15 Feb
Chicago18:12 → 17:1811:4148 min11:410 min15 Feb
Jersey City19:12 → 18:1811:4748 min11:470 min15 Feb
Port of Spain20:12 → 19:1811:5648 min11:560 min15 Feb
London00:12 → 23:1811:5148 min11:510 min15 Feb
Durban02:12 → 01:1811:4648 min11:460 min15 Feb
Dubai04:12 → 03:1812:0948 min12:090 min15 Feb
Delhi05:42 → 04:4812:1148 min12:110 min15 Feb
Kolkata05:42 → 04:4811:2748 min11:270 min15 Feb
Singapore07:42 → 06:4812:2548 min12:250 min15 Feb
Sydney11:12 → 10:1812:4548 min12:450 min15 Feb
Suva12:12 → 11:1811:5632 min11:560 min15 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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