This is a linked open data (LOD) about date and time. "19/06/1441" is a date of Hijri Calendar-TEST (Calendar ID: 9103.1).
http://datetime.hutime.org/calendar/9103.1/date/19/06/1441
hcal:9103.1/date/2458893.5
hcal:9103.1/date/19/06/1441
hcaldate:2458893.5
hcaldate:19/06/1441