Ruling · Śaṅkara Jayantī (Shankaracharya Jayanti) · 1966

Monday 25 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 419 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 Monday 25 April

Taken. The only midday Pañcamī reaches.

madhyāhna begins 11:53  12:41 madhyāhna ends
11:0511:2911:5312:1712:4113:0513:29

48 of 48 minutes covered

Midday of Tuesday 26 April

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

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 04:53 on Mon 25 Apr to 03:55 on Tue 26 Apr.

    1966-04-24T20:53:07Z → 1966-04-25T19:54:58Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 25th, 11:52–12:40 on the 26th.

    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 25th and 0 of 48 on the 26th.

    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 25164 s

  5. 05

    Ruling

    Śaṅkara Jayantī, Baoding, 1966: Monday 25 April.

    confidence: determinate

Say it like this

In Baoding, Śaṅkara Jayantī (Shankaracharya Jayanti) 1966 falls on Monday 25 April. Pañcamī runs from 04:53 on Mon 25 Apr to 03:55 on Tue 26 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1966/shankara-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 25 Apr
Ahargaṇa, classicalDisc centre, no refractionMon 25 Apr
compat-drikpanchangComparison profileMon 25 Apr
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 24thCoveredMadhyāhna 25thCoveredRuled
Los Angeles13:53 → 12:5512:270 min12:2728 min25 Apr
Chicago15:53 → 14:5512:250 min12:2548 min25 Apr
Jersey City16:53 → 15:5512:310 min12:3148 min25 Apr
Port of Spain16:53 → 15:5511:400 min11:4048 min25 Apr
London21:53 → 20:5512:350 min12:3548 min25 Apr
Durban22:53 → 21:5511:300 min11:3048 min25 Apr
Dubai00:53 → 23:5511:530 min11:5348 min25 Apr
Delhi02:23 → 01:2511:550 min11:5548 min25 Apr
Kolkata02:23 → 01:2511:110 min11:1148 min25 Apr
Singapore04:23 → 03:2512:090 min12:0948 min25 Apr
Sydney06:53 → 05:5511:290 min11:2948 min25 Apr
Suva08:53 → 07:5511:400 min11:4048 min25 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

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