Ruling · Bhīṣma Dvādaśī · 2007

Tuesday 30 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 26 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 Monday 29 January

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 12:07  12:55 madhyāhna ends
11:1911:4312:0712:3112:5513:1913:43

0 of 48 minutes covered

Midday of Tuesday 30 January

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 12:08  12:56 madhyāhna ends
Dvādaśī ends 13:21:13
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 14:04 on Mon 29 Jan to 13:21 on Tue 30 Jan.

    2007-01-29T06:03:59Z → 2007-01-30T05:21:14Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 29th, 12:08–12:56 on the 30th.

    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 29th and 48 of 48 on the 30th.

    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 1540 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 2007: Tuesday 30 January.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 2007 falls on Tuesday 30 January. Dvādaśī runs from 14:04 on Mon 29 Jan to 13:21 on Tue 30 Jan and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2007/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 30 Jan
Ahargaṇa, classicalDisc centre, no refractionTue 30 Jan
compat-drikpanchangComparison profileTue 30 Jan
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 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles22:04 → 21:2111:4248 min11:420 min29 Jan
Chicago00:04 → 23:2111:4048 min11:400 min29 Jan
Jersey City01:04 → 00:2111:4648 min11:460 min29 Jan
Port of Spain02:04 → 01:2111:5548 min11:550 min29 Jan
London06:04 → 05:2111:5048 min11:500 min29 Jan
Durban08:04 → 07:2111:4548 min11:450 min29 Jan
Dubai10:04 → 09:2112:0848 min12:080 min29 Jan
Delhi11:34 → 10:5112:1048 min12:100 min29 Jan
Kolkata11:34 → 10:5111:2640 min11:260 min29 Jan
Singapore14:04 → 13:2112:540 min12:5427 min30 Jan
Sydney17:04 → 16:2112:440 min12:4448 min30 Jan
Suva18:04 → 17:2111:550 min11:5548 min30 Jan
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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