Ruling · Bhīṣma Dvādaśī · 1998

Sunday 8 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 156 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 7 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

Midday of Sunday 8 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

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 15:32 on Sat 7 Feb to 15:34 on Sun 8 Feb.

    1998-02-07T07:32:27Z → 1998-02-08T07:33:54Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 7th, 12:09–12:57 on the 8th.

    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 7th and 48 of 48 on the 8th.

    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 9357 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 1998: Sunday 8 February.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 1998 falls on Sunday 8 February. Dvādaśī runs from 15:32 on Sat 7 Feb to 15:34 on Sun 8 Feb and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1998/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 8 Feb
Ahargaṇa, classicalDisc centre, no refractionSun 8 Feb
compat-drikpanchangComparison profileSun 8 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 7thCoveredMadhyāhna 8thCoveredRuled
Los Angeles23:32 → 23:3411:4348 min11:430 min7 Feb
Chicago01:32 → 01:3411:4148 min11:410 min7 Feb
Jersey City02:32 → 02:3411:4748 min11:470 min7 Feb
Port of Spain03:32 → 03:3411:5648 min11:560 min7 Feb
London07:32 → 07:3411:5148 min11:510 min7 Feb
Durban09:32 → 09:3411:4648 min11:460 min7 Feb
Dubai11:32 → 11:3412:0948 min12:090 min7 Feb
Delhi13:02 → 13:0412:110 min12:1148 min8 Feb
Kolkata13:02 → 13:0411:270 min11:2748 min8 Feb
Singapore15:32 → 15:3412:550 min12:5548 min8 Feb
Sydney18:32 → 18:3412:450 min12:4548 min8 Feb
Suva19:32 → 19:3411:560 min11:5648 min8 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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