Ruling · Bhīṣma Dvādaśī · 2017

Wednesday 8 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 63 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 Tuesday 7 February

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 12:08  12:56 madhyāhna ends
11:2011:4412:0812:3212:5613:2013:44

0 of 48 minutes covered

Midday of Wednesday 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 16:18 on Tue 7 Feb to 14:00 on Wed 8 Feb.

    2017-02-07T08:17:43Z → 2017-02-08T05:59:42Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 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 3790 s

  5. 05

    Ruling

    Bhīṣma Dvādaśī, Baoding, 2017: Wednesday 8 February.

    confidence: determinate

Say it like this

In Baoding, Bhīṣma Dvādaśī 2017 falls on Wednesday 8 February. Dvādaśī runs from 16:18 on Tue 7 Feb to 14:00 on Wed 8 Feb and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2017/bhishma-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 8 Feb
Ahargaṇa, classicalDisc centre, no refractionWed 8 Feb
compat-drikpanchangComparison profileWed 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 Angeles00:18 → 22:0011:4348 min11:430 min7 Feb
Chicago02:18 → 00:0011:4148 min11:410 min7 Feb
Jersey City03:18 → 01:0011:4748 min11:470 min7 Feb
Port of Spain04:18 → 02:0011:5648 min11:560 min7 Feb
London08:18 → 06:0011:5148 min11:510 min7 Feb
Durban10:18 → 08:0011:4648 min11:460 min7 Feb
Dubai12:18 → 10:0012:0939 min12:090 min7 Feb
Delhi13:48 → 11:3012:110 min12:110 min8 Feb
Kolkata13:48 → 11:3011:270 min11:273 min8 Feb
Singapore16:18 → 14:0012:550 min12:5548 min8 Feb
Sydney19:18 → 17:0012:450 min12:4548 min8 Feb
Suva20:18 → 18:0011:560 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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