@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix mcr: <https://registry.apicrafter.io/vocab#> .
@prefix dt: <https://registry.apicrafter.io/datatype/> .
@prefix cat: <https://registry.apicrafter.io/category/> .
@prefix country: <https://registry.apicrafter.io/country/> .
@prefix tool: <https://registry.apicrafter.io/tool/> .

dt:excel_serial_date a skos:Concept ;
    skos:inScheme <https://registry.apicrafter.io/> ;
    skos:notation "excel_serial_date" ;
    skos:prefLabel "Date as an Excel serial number"@en ;
    skos:definition "Date written as the serial day number of spreadsheets, days since 30 December 1899, as in 36872 for 12 December 2000. Data exported from sheets without the date format keeps it."@en ;
    skos:broader dt:date ;
    skos:example "36872" ;
    skos:example "42367" ;
    mcr:status "draft" ;
    mcr:isPII false ;
    mcr:regexp "^\\d{5}$" ;
    rdfs:seeAlso <https://en.wikipedia.org/wiki/Spreadsheet> .