Ruling · Śaṅkara Jayantī (Shankaracharya Jayanti) · 1990

Sunday 29 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 413 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 Saturday 28 April

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:52  13:40 madhyāhna ends
12:0412:2812:5213:1613:4014:0414:28

0 of 48 minutes covered

Midday of Sunday 29 April

Taken. The only midday Pañcamī reaches.

madhyāhna begins 12:52  13:40 madhyāhna ends
12:0412:2812:5213:1613:4014:0414:28

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 23:05 on Sat 28 Apr to 20:33 on Sun 29 Apr.

    1990-04-28T14:05:08Z → 1990-04-29T11:32:43Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:52–13:40 on the 28th, 12:52–13:40 on the 29th.

    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 28th and 48 of 48 on the 29th.

    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 24771 s

  5. 05

    Ruling

    Śaṅkara Jayantī, Baoding, 1990: Sunday 29 April.

    confidence: determinate

Say it like this

In Baoding, Śaṅkara Jayantī (Shankaracharya Jayanti) 1990 falls on Sunday 29 April. Pañcamī runs from 23:05 on Sat 28 Apr to 20:33 on Sun 29 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1990/shankara-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 29 Apr
Ahargaṇa, classicalDisc centre, no refractionSun 29 Apr
compat-drikpanchangComparison profileSun 29 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 28thCoveredMadhyāhna 29thCoveredRuled
Los Angeles07:05 → 04:3312:2748 min12:270 min28 Apr
Chicago09:05 → 06:3312:2448 min12:240 min28 Apr
Jersey City10:05 → 07:3312:3048 min12:300 min28 Apr
Port of Spain10:05 → 07:3311:4048 min11:390 min28 Apr
London15:05 → 12:3312:350 min12:340 min29 Apr
Durban16:05 → 13:3311:290 min11:2948 min29 Apr
Dubai18:05 → 15:3311:520 min11:5248 min29 Apr
Delhi19:35 → 17:0311:550 min11:5548 min29 Apr
Kolkata19:35 → 17:0311:100 min11:1048 min29 Apr
Singapore22:05 → 19:3312:380 min12:3848 min29 Apr
Sydney00:05 → 21:3311:290 min11:2848 min29 Apr
Suva02:05 → 23:3311:400 min11:4048 min29 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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