Ruling · Śaṅkara Jayantī · 1951

Friday 11 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 340 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 May

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

0 of 48 minutes covered

Midday of Friday 11 May

Taken. The only midday Pañcamī reaches.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

48 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Pañcamī runs from 18:19 on Thu 10 May to 20:45 on Fri 11 May.

    1951-05-10T10:18:34Z → 1951-05-11T12:44:41Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 10th, 11:51–12:39 on the 11th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pañcamī must be present during madhyāhna. It covers 0 of 48 minutes on the 10th and 48 of 48 on the 11th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 20386 s

  5. 05

    Ruling

    Śaṅkara Jayantī, Baoding, 1951: Friday 11 May.

    confidence: determinate

Say it like this

In Baoding, Śaṅkara Jayantī 1951 falls on Friday 11 May. Pañcamī runs from 18:19 on Thu 10 May to 20:45 on Fri 11 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1951/shankara-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 11 May
Ahargaṇa, classicalDisc centre, no refractionFri 11 May
compat-drikpanchangComparison profileFri 11 May
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/shankara-jayanti · ruleset 2026.3-draft

Month
Vaiśākha, amānta
Pakṣa · aṅga
Śukla · Pañcamī
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 102

“S 5 Sankara jayanti.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePañcamīMadhyāhna 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles03:19 → 05:4512:2648 min12:260 min10 May
Chicago05:19 → 07:4512:2348 min12:230 min10 May
Jersey City06:19 → 08:4512:2948 min12:290 min10 May
Port of Spain06:19 → 08:4511:3848 min11:380 min10 May
London11:19 → 13:4512:3348 min12:3348 min10 May
Durban12:19 → 14:4511:280 min11:2848 min11 May
Dubai14:19 → 16:4511:510 min11:5148 min11 May
Delhi15:49 → 18:1511:540 min11:5448 min11 May
Kolkata15:49 → 18:1511:090 min11:0948 min11 May
Singapore17:49 → 20:1512:070 min12:0748 min11 May
Sydney20:19 → 22:4511:270 min11:2748 min11 May
Suva22:19 → 00:4511:390 min11:3948 min11 May
Profile · tradition
pac-rp@2026.1 · smarta
Rule
shankara-jayanti@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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