Ruling · Bhīṣma Dvādaśī · 1949

Thursday 10 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 476 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 Thursday 10 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 Friday 11 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 04:13 on Thu 10 Feb to 02:19 on Fri 11 Feb.

    1949-02-09T20:12:45Z → 1949-02-10T18:19:14Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 10th, 12:09–12:57 on the 11th.

    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 10th and 0 of 48 on the 11th.

    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 28560 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 1949: Thursday 10 February.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 1949 falls on Thursday 10 February. Dvādaśī runs from 04:13 on Thu 10 Feb to 02:19 on Fri 11 Feb and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1949/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 10 Feb
Ahargaṇa, classicalDisc centre, no refractionThu 10 Feb
compat-drikpanchangComparison profileThu 10 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 9thCoveredMadhyāhna 10thCoveredRuled
Los Angeles12:13 → 10:1911:4419 min11:440 min9 Feb
Chicago14:13 → 12:1911:410 min11:4138 min10 Feb
Jersey City15:13 → 13:1911:470 min11:4748 min10 Feb
Port of Spain16:13 → 14:1911:560 min11:5748 min10 Feb
London20:13 → 18:1911:510 min11:5148 min10 Feb
Durban22:13 → 20:1911:460 min11:4648 min10 Feb
Dubai00:13 → 22:1912:090 min12:0948 min10 Feb
Delhi01:43 → 23:4912:120 min12:1248 min10 Feb
Kolkata01:43 → 23:4911:270 min11:2748 min10 Feb
Singapore03:43 → 01:4912:250 min12:2548 min10 Feb
Sydney06:13 → 04:1911:450 min11:4548 min10 Feb
Suva08:13 → 06:1911:570 min11:5748 min10 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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