Ruling · Śaṅkara Jayantī (Shankaracharya Jayanti) · 2026

Tuesday 21 April

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 466 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 Tuesday 21 April

Taken. The only midday Pañcamī reaches.

madhyāhna begins 12:02  12:50 madhyāhna ends
11:1411:3812:0212:2612:5013:1413:38

48 of 48 minutes covered

Midday of Wednesday 22 April

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:02  12:50 madhyāhna ends
11:1411:3812:0212:2612:5013:1413:38

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 04:15 on Tue 21 Apr to 01:20 on Wed 22 Apr.

    2026-04-20T22:45:21Z → 2026-04-21T19:50:21Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:02–12:50 on the 21st, 12:02–12:50 on the 22nd.

    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 21st and 0 of 48 on the 22nd.

    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 27986 s

  5. 05

    Ruling

    Śaṅkara Jayantī, Ujjain, 2026: Tuesday 21 April.

    confidence: determinate

Say it like this

In Ujjain, Śaṅkara Jayantī (Shankaracharya Jayanti) 2026 falls on Tuesday 21 April. Pañcamī runs from 04:15 on Tue 21 Apr to 01:20 on Wed 22 Apr and covers all of madhyāhna that midday.

ahargana.org/ujjain/festivals/2026/shankara-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 21 Apr
Ahargaṇa, classicalDisc centre, no refractionTue 21 Apr
compat-drikpanchangComparison profileTue 21 Apr
Rashtriya PanchangPrincipal festivals, 2026-27Tue 21 Apr

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 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles15:45 → 12:5012:280 min12:2822 min21 Apr
Chicago17:45 → 14:5012:260 min12:2648 min21 Apr
Jersey City18:45 → 15:5012:320 min12:3148 min21 Apr
Port of Spain18:45 → 15:5011:410 min11:4148 min21 Apr
London23:45 → 20:5012:360 min12:3648 min21 Apr
Durban00:45 → 21:5011:310 min11:3048 min21 Apr
Dubai02:45 → 23:5011:540 min11:5448 min21 Apr
Delhi04:15 → 01:2011:560 min11:5648 min21 Apr
Kolkata04:15 → 01:2011:120 min11:1148 min21 Apr
Singapore06:45 → 03:5012:400 min12:3948 min21 Apr
Sydney08:45 → 05:5011:300 min11:3048 min21 Apr
Suva10:45 → 07:5011:410 min11:4148 min21 Apr
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