Ruling · Śaṅkara Jayantī · 2010

Tuesday 18 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 523 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 Tuesday 18 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

Midday of Wednesday 19 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

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

How it was decided

  1. 01

    Aṅga

    Pañcamī runs from 03:08 on Tue 18 May to 01:07 on Wed 19 May.

    2010-05-17T19:08:05Z → 2010-05-18T17:06:52Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 18th, 11:51–12:39 on the 19th.

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

  3. 03

    Rule

    Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.

    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 31363 s

  5. 05

    Ruling

    Śaṅkara Jayantī, Baoding, 2010: Tuesday 18 May.

    confidence: determinate

Say it like this

In Baoding, Śaṅkara Jayantī 2010 falls on Tuesday 18 May. Pañcamī runs from 03:08 on Tue 18 May to 01:07 on Wed 19 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2010/shankara-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 18 May
Ahargaṇa, classicalDisc centre, no refractionTue 18 May
compat-drikpanchangComparison profileTue 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 Angeles12:08 → 10:0712:2648 min12:260 min17 May
Chicago14:08 → 12:0712:230 min12:230 min18 May
Jersey City15:08 → 13:0712:290 min12:2938 min18 May
Port of Spain15:08 → 13:0711:390 min11:3948 min18 May
London20:08 → 18:0712:330 min12:3348 min18 May
Durban21:08 → 19:0711:280 min11:2848 min18 May
Dubai23:08 → 21:0711:510 min11:5148 min18 May
Delhi00:38 → 22:3711:540 min11:5448 min18 May
Kolkata00:38 → 22:3711:090 min11:0948 min18 May
Singapore03:08 → 01:0712:370 min12:3748 min18 May
Sydney05:08 → 03:0711:270 min11:2748 min18 May
Suva07:08 → 05:0711:390 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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