owltime.ttl

PREFIX : <https://periodo.github.io/edtf-ontology/cases/level-0/datetime/year-precision/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX time: <http://www.w3.org/2006/time#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>

:when1
  a time:Instant ;
  rdfs:label "Gregorian calendar year 1985" ;
  time:inDateTime [
      a time:DateTimeDescription ;
      time:unitType time:unitYear ;
      time:year "1985"^^xsd:gYear
    ] ;
.

:when2
  a time:Instant ;
  rdfs:label "proleptic Gregorian calendar year 85 CE" ;
  time:inDateTime [
      a time:DateTimeDescription ;
      time:unitType time:unitYear ;
      time:year "0085"^^xsd:gYear
    ] ;
.

:when3
  a time:Instant ;
  rdfs:label "proleptic Gregorian calendar year 1 BCE" ;
  time:inDateTime [
      a time:DateTimeDescription ;
      time:unitType time:unitYear ;
      time:year "0000"^^xsd:gYear
    ] ;
.

:when4
  a time:Instant ;
  rdfs:label "proleptic Gregorian calendar year 2 BCE" ;
  time:inDateTime [
      a time:DateTimeDescription ;
      time:unitType time:unitYear ;
      time:year "-0001"^^xsd:gYear
    ] ;
.

:when5
  a time:Instant ;
  rdfs:label "proleptic Gregorian calendar year 10,000 BCE" ;
  time:inDateTime [
      a time:DateTimeDescription ;
      time:unitType time:unitYear ;
      time:year "-9999"^^xsd:gYear
    ] ;
.