Ruling · Śaṅkara Jayantī · 1999

Tuesday 20 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 400 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 19 April

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

0 of 48 minutes covered

Midday of Tuesday 20 April

Taken. The only midday Pañcamī reaches.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

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 22:09 on Mon 19 Apr to 19:21 on Tue 20 Apr.

    1999-04-19T14:09:18Z → 1999-04-20T11:21:19Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 19th, 11:54–12:42 on the 20th.

    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 19th and 48 of 48 on the 20th.

    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 23987 s

  5. 05

    Ruling

    Śaṅkara Jayantī, Baoding, 1999: Tuesday 20 April.

    confidence: determinate

Say it like this

In Baoding, Śaṅkara Jayantī 1999 falls on Tuesday 20 April. Pañcamī runs from 22:09 on Mon 19 Apr to 19:21 on Tue 20 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1999/shankara-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 20 Apr
Ahargaṇa, classicalDisc centre, no refractionTue 20 Apr
compat-drikpanchangComparison profileTue 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 Angeles07:09 → 04:2112:2848 min12:280 min19 Apr
Chicago09:09 → 06:2112:2648 min12:260 min19 Apr
Jersey City10:09 → 07:2112:3248 min12:320 min19 Apr
Port of Spain10:09 → 07:2111:4148 min11:410 min19 Apr
London15:09 → 12:2112:360 min12:360 min20 Apr
Durban16:09 → 13:2111:310 min11:3148 min20 Apr
Dubai18:09 → 15:2111:540 min11:5448 min20 Apr
Delhi19:39 → 16:5111:570 min11:5648 min20 Apr
Kolkata19:39 → 16:5111:120 min11:1248 min20 Apr
Singapore22:09 → 19:2112:400 min12:4048 min20 Apr
Sydney00:09 → 21:2111:300 min11:3048 min20 Apr
Suva02:09 → 23:2111:410 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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