Ruling · Bhīṣma Dvādaśī · 2045

Monday 30 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 186 minutes.

Decide it for

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 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 Monday 30 January

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

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 19:08 on Sun 29 Jan to 16:02 on Mon 30 Jan.

    2045-01-29T11:08:17Z → 2045-01-30T08:01:46Z

  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 11168 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 2045: Monday 30 January.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 2045 falls on Monday 30 January. Dvādaśī runs from 19:08 on Sun 29 Jan to 16:02 on Mon 30 Jan and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2045/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 30 Jan
Ahargaṇa, classicalDisc centre, no refractionMon 30 Jan
compat-drikpanchangComparison profileMon 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 Angeles03:08 → 00:0211:4248 min11:430 min29 Jan
Chicago05:08 → 02:0211:4048 min11:400 min29 Jan
Jersey City06:08 → 03:0211:4648 min11:460 min29 Jan
Port of Spain07:08 → 04:0211:5548 min11:550 min29 Jan
London11:08 → 08:0211:5048 min11:500 min29 Jan
Durban13:08 → 10:0211:450 min11:450 min30 Jan
Dubai15:08 → 12:0212:080 min12:080 min30 Jan
Delhi16:38 → 13:3212:100 min12:1148 min30 Jan
Kolkata16:38 → 13:3211:260 min11:2648 min30 Jan
Singapore19:08 → 16:0212:540 min12:5448 min30 Jan
Sydney22:08 → 19:0212:440 min12:4448 min30 Jan
Suva23:08 → 20:0211:550 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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