Ruling · Śaṅkara Jayantī (Shankaracharya Jayanti) · 1978

Friday 12 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 419 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 11 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 12 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 19:38 on Thu 11 May to 22:03 on Fri 12 May.

    1978-05-11T11:38:10Z → 1978-05-12T14:02:47Z

  2. 02

    Kāla

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

    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 11th and 48 of 48 on the 12th.

    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 25165 s

  5. 05

    Ruling

    Śaṅkara Jayantī, Baoding, 1978: Friday 12 May.

    confidence: determinate

Say it like this

In Baoding, Śaṅkara Jayantī (Shankaracharya Jayanti) 1978 falls on Friday 12 May. Pañcamī runs from 19:38 on Thu 11 May to 22:03 on Fri 12 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1978/shankara-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 12 May
Ahargaṇa, classicalDisc centre, no refractionFri 12 May
compat-drikpanchangComparison profileFri 12 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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles04:38 → 07:0312:2648 min12:250 min11 May
Chicago06:38 → 09:0312:2348 min12:230 min11 May
Jersey City07:38 → 10:0312:2948 min12:290 min11 May
Port of Spain07:38 → 10:0311:3848 min11:380 min11 May
London12:38 → 15:0312:3343 min12:3348 min12 May
Durban13:38 → 16:0311:280 min11:2848 min12 May
Dubai15:38 → 18:0311:510 min11:5148 min12 May
Delhi17:08 → 19:3311:540 min11:5448 min12 May
Kolkata17:08 → 19:3311:090 min11:0948 min12 May
Singapore19:08 → 21:3312:070 min12:0748 min12 May
Sydney21:38 → 00:0311:270 min11:2748 min12 May
Suva23:38 → 02:0311:390 min11:3948 min12 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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