Time

In the CIDOC-CRM any statement about time is at the end a statement about a time-span, which can be defined in regard to is maximum and minimum boundaries. Here only two properties are used to describe a E52 Time-Span: crm:P82a_begin_of_the_begin and crm:P82b_end_of_the_end. Additionally, rdfs:label is used to provide an easier access.

@prefix crm: <http://www.cidoc-crm.org/cidoc-crm/> .

[ a crm:E52_Time-Span ;
    rdfs:label "1999" ;
    crm:P82a_begin_of_the_begin "1999-01-01"^^xsd:date ;
    crm:P82b_end_of_the_end "1999-12-31"^^xsd:date
]

As instances of E52 Time-Span are never re-used and only accessed through a specific actor, object or activity they belong to, they are both rendered as conceptual blank nodes, i.e. with x-based URIs. The only exceptions are theatre seasons.

A E52 Time-Span is used for both defining a point in time like a specific date or a longer period. However, if two events mark the beginning and the end of such a time period, there are two simple E52 Time-Span instances like in the formation and dissolution of a legal body.

@prefix crm: <http://www.cidoc-crm.org/cidoc-crm/> .

<http://data.performing-arts.ch/a/UUID1> a crm:E40_Legal_Body ;
    crm:P95i_was_formed_by [ a crm:E66_Formation ;
        crm:P4_has_time-span [ a crm:E52_Time-Span ;
            rdfs:label "1961" ;
            crm:P82a_begin_of_the_begin "1961-01-01"^^xsd:date ;
            crm:P82b_end_of_the_end "1961-12-31"^^xsd:date
        ]
    ] ;
    crm:P99i_was_dissolved_by [ a crm:E68_Dissolution ;
        crm:P4_has_time-span [ a crm:E52_Time-Span ;
            rdfs:label "1989" ;
            crm:P82a_begin_of_the_begin "1989-01-01"^^xsd:date ;
            crm:P82b_end_of_the_end "1989-12-31"^^xsd:date
        ]
    ] .