Ruling · Śaṅkara Jayantī · 1991

Saturday 18 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 479 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 17 May

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:51  13:39 madhyāhna ends
12:0312:2712:5113:1513:3914:0314:27

0 of 48 minutes covered

Midday of Saturday 18 May

Taken. The only midday Pañcamī reaches.

madhyāhna begins 12:51  13:39 madhyāhna ends
12:0312:2712:5113:1513:3914:0314:27

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 00:23 on Sat 18 May to 21:37 on Sat 18 May.

    1991-05-17T15:22:34Z → 1991-05-18T12:37:21Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:51–13:39 on the 17th, 12:51–13:39 on the 18th.

    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 17th and 48 of 48 on the 18th.

    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 28715 s

  5. 05

    Ruling

    Śaṅkara Jayantī, Baoding, 1991: Saturday 18 May.

    confidence: determinate

Say it like this

In Baoding, Śaṅkara Jayantī 1991 falls on Saturday 18 May. Pañcamī runs from 00:23 on Sat 18 May to 21:37 on Sat 18 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1991/shankara-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 18 May
Ahargaṇa, classicalDisc centre, no refractionSat 18 May
compat-drikpanchangComparison profileSat 18 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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles08:23 → 05:3712:2648 min12:260 min17 May
Chicago10:23 → 07:3712:2348 min12:230 min17 May
Jersey City11:23 → 08:3712:2948 min12:290 min17 May
Port of Spain11:23 → 08:3711:3848 min11:380 min17 May
London16:23 → 13:3712:330 min12:3348 min18 May
Durban17:23 → 14:3711:280 min11:2848 min18 May
Dubai19:23 → 16:3711:510 min11:5148 min18 May
Delhi20:53 → 18:0711:540 min11:5448 min18 May
Kolkata20:53 → 18:0711:090 min11:0948 min18 May
Singapore23:23 → 20:3712:370 min12:3748 min18 May
Sydney01:23 → 22:3711:270 min11:2748 min18 May
Suva03:23 → 00:3711:390 min11:3948 min18 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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