Ruling · Śaṅkara Jayantī (Shankaracharya Jayanti) · 2027

Monday 10 May

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 336 minutes.

Decide it for

UjjainDelhiKolkataSingaporeSydneyJersey City

23°11′ N 75°47′ E · Asia/Kolkata · GeoNames 1253914

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Monday 10 May

Taken. The only midday Pañcamī reaches.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

48 of 48 minutes covered

Midday of Tuesday 11 May

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

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 06:23 on Mon 10 May to 03:49 on Tue 11 May.

    2027-05-10T00:53:24Z → 2027-05-10T22:18:37Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 10th, 11:59–12:47 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 48 of 48 minutes on the 10th and 0 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 20164 s

  5. 05

    Ruling

    Śaṅkara Jayantī, Ujjain, 2027: Monday 10 May.

    confidence: determinate

Say it like this

In Ujjain, Śaṅkara Jayantī (Shankaracharya Jayanti) 2027 falls on Monday 10 May. Pañcamī runs from 06:23 on Mon 10 May to 03:49 on Tue 11 May and covers all of madhyāhna that midday.

ahargana.org/ujjain/festivals/2027/shankara-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 10 May
Ahargaṇa, classicalDisc centre, no refractionMon 10 May
compat-drikpanchangComparison profileMon 10 May
No institution has a recorded ruling for Ujjain.

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 Angeles17:53 → 15:1912:2648 min12:260 min10 May
Chicago19:53 → 17:1912:2348 min12:230 min10 May
Jersey City20:53 → 18:1912:2948 min12:290 min10 May
Port of Spain20:53 → 18:1911:3948 min11:390 min10 May
London01:53 → 23:1912:3348 min12:330 min10 May
Durban02:53 → 00:1911:2848 min11:280 min10 May
Dubai04:53 → 02:1911:5148 min11:510 min10 May
Delhi06:23 → 03:4911:5448 min11:540 min10 May
Kolkata06:23 → 03:4911:0948 min11:090 min10 May
Singapore08:53 → 06:1912:3748 min12:370 min10 May
Sydney10:53 → 08:1911:2748 min11:270 min10 May
Suva12:53 → 10:1911:390 min11:390 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