Ruling · Bhīṣma Dvādaśī · 2090

Saturday 11 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 58 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 Saturday 11 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 Sunday 12 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 11:10 on Sat 11 Feb to 08:25 on Sun 12 Feb.

    2090-02-11T03:10:24Z → 2090-02-12T00:24:56Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 11th, 12:09–12:57 on the 12th.

    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 11th and 0 of 48 on the 12th.

    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 3503 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 2090: Saturday 11 February.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 2090 falls on Saturday 11 February. Dvādaśī runs from 11:10 on Sat 11 Feb to 08:25 on Sun 12 Feb and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2090/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 11 Feb
Ahargaṇa, classicalDisc centre, no refractionSat 11 Feb
compat-drikpanchangComparison profileSat 11 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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles19:10 → 16:2511:4448 min11:440 min11 Feb
Chicago21:10 → 18:2511:4148 min11:410 min11 Feb
Jersey City22:10 → 19:2511:4748 min11:470 min11 Feb
Port of Spain23:10 → 20:2511:5748 min11:560 min11 Feb
London03:10 → 00:2511:5148 min11:510 min11 Feb
Durban05:10 → 02:2511:4648 min11:460 min11 Feb
Dubai07:10 → 04:2512:0948 min12:090 min11 Feb
Delhi08:40 → 05:5512:1248 min12:120 min11 Feb
Kolkata08:40 → 05:5511:2748 min11:270 min11 Feb
Singapore11:10 → 08:2512:5548 min12:550 min11 Feb
Sydney14:10 → 11:2512:450 min12:450 min12 Feb
Suva15:10 → 12:2511:570 min11:5728 min12 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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