Ruling · Śaṅkara Jayantī · 1975

Friday 16 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 16 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 15 May

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:51  12:39 madhyāhna ends
Pañcamī begins 12:54:30
11:0311:2711:5112:1512:3913:0313:27

0 of 48 minutes covered

Midday of Friday 16 May

Taken. Pañcamī reaches neither midday; the rule takes the second day.

madhyāhna begins 11:51  12:39 madhyāhna ends
Pañcamī ends 11:24:52
11:0311:2711:5112:1512:3913:0313:27

0 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 12:55 on Thu 15 May to 11:25 on Fri 16 May.

    1975-05-15T04:54:31Z → 1975-05-16T03:24:52Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 15th, 11:51–12:39 on the 16th.

    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 15th and 0 of 48 on the 16th.

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

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: unstated → second-day · margin 948 s

  5. 05

    Ruling

    Śaṅkara Jayantī, Baoding, 1975: Friday 16 May.

    confidence: determinate

Say it like this

In Baoding, Śaṅkara Jayantī 1975 falls on Friday 16 May. Pañcamī runs from 12:55 on Thu 15 May to 11:25 on Fri 16 May, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/1975/shankara-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 16 May
Ahargaṇa, classicalDisc centre, no refractionFri 16 May
compat-drikpanchangComparison profileThu 15 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 15thCoveredMadhyāhna 16thCoveredRuled
Los Angeles21:55 → 20:2512:2548 min12:250 min15 May
Chicago23:55 → 22:2512:2348 min12:230 min15 May
Jersey City00:55 → 23:2512:2948 min12:290 min15 May
Port of Spain00:55 → 23:2511:3848 min11:380 min15 May
London05:55 → 04:2512:3348 min12:330 min15 May
Durban06:55 → 05:2511:2848 min11:280 min15 May
Dubai08:55 → 07:2511:5148 min11:510 min15 May
Delhi10:25 → 08:5511:5448 min11:540 min15 May
Kolkata10:25 → 08:5511:0948 min11:090 min15 May
Singapore12:25 → 10:5512:0730 min12:070 min15 May
Sydney14:55 → 13:2511:270 min11:2748 min16 May
Suva16:55 → 15:2511:390 min11:3948 min16 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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