Ruling · Vasanta Pañcamī (Basant Panchami) · 1993

Wednesday 27 January

Boundaryin Baoding, under the Rashtriya Panchang method. Both middays qualify and the rule does not say which to take. Say “contested”.

Decide it for

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 27 January

Taken. Both middays qualify; the rule is silent, and this one is covered longer.

madhyāhna begins 12:07  12:55 madhyāhna ends
Pañcamī begins 11:47:13
11:1911:4312:0712:3112:5513:1913:43

48 of 48 minutes covered

Midday of Thursday 28 January

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 12:07  12:55 madhyāhna ends
11:1911:4312:0712:3112:5513:1913:43

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 11:47 on Wed 27 Jan to 14:20 on Thu 28 Jan.

    1993-01-27T03:47:13Z → 1993-01-28T06:19:58Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 27th, 12:07–12:55 on the 28th.

    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 27th and 48 of 48 on the 28th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

    priority: unstated → greater-coverage · margin 1192 s

  5. 05

    Ruling

    Vasanta Pañcamī, Baoding, 1993: Wednesday 27 January.

    confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Vasanta Pañcamī (Basant Panchami) 1993 falls on Wednesday 27 January. Pañcamī runs from 11:47 on Wed 27 Jan to 14:20 on Thu 28 Jan and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

ahargana.org/baoding/festivals/1993/vasanta-panchami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 27 Jan
Ahargaṇa, classicalDisc centre, no refractionWed 27 Jan
compat-drikpanchangComparison profileThu 28 Jan
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/vasanta-panchami · ruleset 2026.3-draft

Month
Māgha, amānta
Pakṣa · aṅga
Śukla · Pañcamī
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 105

“S 5 Sri Pancami (purvaviddha), Sarasvati puja (Bengal), Vasanta pancami, Madana pancami.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePañcamīMadhyāhna 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles19:47 → 22:2011:4248 min11:420 min27 Jan
Chicago21:47 → 00:2011:4048 min11:400 min27 Jan
Jersey City22:47 → 01:2011:4548 min11:460 min27 Jan
Port of Spain23:47 → 02:2011:5548 min11:550 min27 Jan
London03:47 → 06:2011:5048 min11:500 min27 Jan
Durban05:47 → 08:2011:4448 min11:450 min27 Jan
Dubai07:47 → 10:2012:0848 min12:080 min27 Jan
Delhi09:17 → 11:5012:1048 min12:100 min27 Jan
Kolkata09:17 → 11:5011:2548 min11:2624 min27 Jan
Singapore11:47 → 14:2012:5348 min12:5448 min27 Jan
Sydney14:47 → 17:2012:440 min12:4448 min28 Jan
Suva15:47 → 18:2011:550 min11:5548 min28 Jan
Profile · tradition
pac-rp@2026.1 · smarta
Rule
vasanta-panchami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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