About: http://webisa.webdatacommons.org/453174234

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Then we can convert the two dates to for example UTC and then simply subtract the dates.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com