Ruling · Śaṅkara Jayantī · 1984

Saturday 5 May

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 2 min 05 s away. Say “contested”.

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 Saturday 5 May

Taken. The only midday Pañcamī reaches.

madhyāhna begins 11:51  12:39 madhyāhna ends
Pañcamī begins 12:37:03
11:0311:2711:5112:1512:3913:0313:27

2 of 48 minutes covered, the last 2

Midday of Sunday 6 May

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:51  12:39 madhyāhna ends
Pañcamī ends 11:45:36
11:0311:2711:5112:1512:3913:0313:27

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 12:37 on Sat 5 May to 11:46 on Sun 6 May.

    1984-05-05T04:37:03Z → 1984-05-06T03:45:37Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 5th, 11:51–12:39 on the 6th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pañcamī must be present during madhyāhna. It covers 2 of 48 minutes on the 5th and 0 of 48 on the 6th.

    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 125 s < 300 s

  5. 05

    Ruling

    Śaṅkara Jayantī, Baoding, 1984: Saturday 5 May.

    confidence: boundary (margin)

Say it like this

In Baoding, Śaṅkara Jayantī 1984 falls on Saturday 5 May. Pañcamī runs from 12:37 on Sat 5 May to 11:46 on Sun 6 May and covers 2 of 48 minutes of madhyāhna that midday. It is 2 min 05 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/1984/shankara-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 5 May
Ahargaṇa, classicalDisc centre, no refractionSat 5 May
compat-drikpanchangComparison profileSat 5 May
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 5thCoveredMadhyāhna 6thCoveredRuled
Los Angeles21:37 → 20:4612:2648 min12:260 min5 May
Chicago23:37 → 22:4612:2448 min12:230 min5 May
Jersey City00:37 → 23:4612:2948 min12:290 min5 May
Port of Spain00:37 → 23:4611:3948 min11:390 min5 May
London05:37 → 04:4612:3448 min12:340 min5 May
Durban06:37 → 05:4611:2848 min11:280 min5 May
Dubai08:37 → 07:4611:5248 min11:520 min5 May
Delhi10:07 → 09:1611:5448 min11:540 min5 May
Kolkata10:07 → 09:1611:0948 min11:090 min5 May
Singapore12:37 → 11:4612:3748 min12:370 min5 May
Sydney14:37 → 13:4611:280 min11:2848 min6 May
Suva16:37 → 15:4611:390 min11:3948 min6 May
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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