Ruling · Śaṅkara Jayantī (Shankaracharya Jayanti) · 2037

Monday 20 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 568 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 20 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 21 April

Pañcamī is absent from madhyāhna. Not taken.

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

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 02:25 on Mon 20 Apr to 02:01 on Tue 21 Apr.

    2037-04-19T18:25:28Z → 2037-04-20T18:00:57Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 20th, 11:53–12:41 on the 21st.

    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 20th and 0 of 48 on the 21st.

    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 34076 s

  5. 05

    Ruling

    Śaṅkara Jayantī, Baoding, 2037: Monday 20 April.

    confidence: determinate

Say it like this

In Baoding, Śaṅkara Jayantī (Shankaracharya Jayanti) 2037 falls on Monday 20 April. Pañcamī runs from 02:25 on Mon 20 Apr to 02:01 on Tue 21 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2037/shankara-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 20 Apr
Ahargaṇa, classicalDisc centre, no refractionMon 20 Apr
compat-drikpanchangComparison profileMon 20 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 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles11:25 → 11:0112:2848 min12:280 min19 Apr
Chicago13:25 → 13:0112:260 min12:2635 min20 Apr
Jersey City14:25 → 14:0112:320 min12:3148 min20 Apr
Port of Spain14:25 → 14:0111:410 min11:4148 min20 Apr
London19:25 → 19:0112:360 min12:3648 min20 Apr
Durban20:25 → 20:0111:310 min11:3148 min20 Apr
Dubai22:25 → 22:0111:540 min11:5448 min20 Apr
Delhi23:55 → 23:3111:560 min11:5648 min20 Apr
Kolkata23:55 → 23:3111:120 min11:1248 min20 Apr
Singapore02:25 → 02:0112:400 min12:4048 min20 Apr
Sydney04:25 → 04:0111:300 min11:3048 min20 Apr
Suva06:25 → 06:0111:410 min11:4148 min20 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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