Ruling · Śaṅkara Jayantī · 1988

Thursday 21 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 102 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 Wednesday 20 April

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:53  13:41 madhyāhna ends
12:0512:2912:5313:1713:4114:0514:29

0 of 48 minutes covered

Midday of Thursday 21 April

Taken. The only midday Pañcamī reaches.

madhyāhna begins 12:53  13:41 madhyāhna ends
12:0512:2912:5313:1713:4114:0514:29

48 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 15:23 on Wed 20 Apr to 15:41 on Thu 21 Apr.

    1988-04-20T06:23:09Z → 1988-04-21T06:41:23Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:53–13:41 on the 20th, 12:53–13:41 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 0 of 48 minutes on the 20th and 48 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 6105 s

  5. 05

    Ruling

    Śaṅkara Jayantī, Baoding, 1988: Thursday 21 April.

    confidence: determinate

Say it like this

In Baoding, Śaṅkara Jayantī 1988 falls on Thursday 21 April. Pañcamī runs from 15:23 on Wed 20 Apr to 15:41 on Thu 21 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1988/shankara-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 21 Apr
Ahargaṇa, classicalDisc centre, no refractionThu 21 Apr
compat-drikpanchangComparison profileThu 21 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 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles23:23 → 23:4112:2848 min12:280 min20 Apr
Chicago01:23 → 01:4112:2648 min12:260 min20 Apr
Jersey City02:23 → 02:4112:3148 min12:310 min20 Apr
Port of Spain02:23 → 02:4111:4148 min11:410 min20 Apr
London07:23 → 07:4112:3648 min12:360 min20 Apr
Durban08:23 → 08:4111:3148 min11:300 min20 Apr
Dubai10:23 → 10:4111:5448 min11:540 min20 Apr
Delhi11:53 → 12:1111:5648 min11:5615 min20 Apr
Kolkata11:53 → 12:1111:126 min11:1148 min21 Apr
Singapore14:23 → 14:4112:400 min12:3948 min21 Apr
Sydney16:23 → 16:4111:300 min11:3048 min21 Apr
Suva18:23 → 18:4111:410 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

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