Ruling · Bhīṣma Dvādaśī · 1965

Saturday 13 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 329 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 Friday 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

Midday of Saturday 13 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 21:29 on Fri 12 Feb to 18:26 on Sat 13 Feb.

    1965-02-12T13:29:24Z → 1965-02-13T10:25:46Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:09–12:57 on the 12th, 12:09–12:57 on the 13th.

    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 12th and 48 of 48 on the 13th.

    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 19744 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 1965: Saturday 13 February.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 1965 falls on Saturday 13 February. Dvādaśī runs from 21:29 on Fri 12 Feb to 18:26 on Sat 13 Feb and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1965/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 13 Feb
Ahargaṇa, classicalDisc centre, no refractionSat 13 Feb
compat-drikpanchangComparison profileSat 13 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles05:29 → 02:2611:4348 min11:430 min12 Feb
Chicago07:29 → 04:2611:4148 min11:410 min12 Feb
Jersey City08:29 → 05:2611:4748 min11:470 min12 Feb
Port of Spain09:29 → 06:2611:5648 min11:560 min12 Feb
London13:29 → 10:2611:510 min11:510 min13 Feb
Durban15:29 → 12:2611:460 min11:4640 min13 Feb
Dubai17:29 → 14:2612:090 min12:0948 min13 Feb
Delhi18:59 → 15:5612:120 min12:1248 min13 Feb
Kolkata18:59 → 15:5611:270 min11:2748 min13 Feb
Singapore20:59 → 17:5612:250 min12:2548 min13 Feb
Sydney23:29 → 20:2611:450 min11:4548 min13 Feb
Suva01:29 → 22:2611:560 min11:5648 min13 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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