Ruling · Śaṅkara Jayantī · 1906

Saturday 28 April

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 0 min 23 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 28 April

Taken. The only midday Pañcamī reaches.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

48 of 48 minutes covered

Midday of Sunday 29 April

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:52  12:40 madhyāhna ends
Pañcamī ends 11:51:29
11:0411:2811:5212:1612:4013:0413:28

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 09:43 on Sat 28 Apr to 11:51 on Sun 29 Apr.

    1906-04-28T01:42:55Z → 1906-04-29T03:51:30Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 28th, 11:52–12:40 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 48 of 48 minutes on the 28th and 0 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 23 s < 300 s

  5. 05

    Ruling

    Śaṅkara Jayantī, Baoding, 1906: Saturday 28 April.

    confidence: boundary (margin)

Say it like this

In Baoding, Śaṅkara Jayantī 1906 falls on Saturday 28 April. Pañcamī runs from 09:43 on Sat 28 Apr to 11:51 on Sun 29 Apr and covers all of madhyāhna that midday. It is 0 min 23 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/1906/shankara-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 28 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 28 Apr
compat-drikpanchangComparison profileSat 28 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 Angeles17:43 → 19:5111:2748 min11:270 min28 Apr
Chicago19:43 → 21:5111:2448 min11:240 min28 Apr
Jersey City20:43 → 22:5111:3048 min11:300 min28 Apr
Port of Spain21:43 → 23:5111:4048 min11:390 min28 Apr
London01:43 → 03:5111:3548 min11:340 min28 Apr
Durban03:43 → 05:5111:2948 min11:290 min28 Apr
Dubai05:24 → 07:3211:3348 min11:330 min28 Apr
Delhi07:13 → 09:2111:5548 min11:550 min28 Apr
Kolkata07:13 → 09:2111:1048 min11:100 min28 Apr
Singapore08:43 → 10:5111:3848 min11:380 min28 Apr
Sydney11:43 → 13:5111:2934 min11:2848 min29 Apr
Suva13:38 → 15:4611:350 min11:3548 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

About Ahargaṇa