This is a linked open data (LOD) about date and time. "23/09/1445" is a date of Hijri Calendar-TEST (Calendar ID: 9103.1).
http://datetime.hutime.org/calendar/9103.1/date/23/09/1445
hcal:9103.1/date/2460402.5
hcal:9103.1/date/23/09/1445
hcaldate:2460402.5
hcaldate:23/09/1445