This is a linked open data (LOD) about date and time. "28 חשון 5785" is a date of Hebrew Calendar-TEST (Calendar ID: 104.1).
http://datetime.hutime.org/calendar/104.1/date/28_חשון_5785
hcal:104.1/date/2460643.5
hcal:104.1/date/28_חשון_5785
hcaldate:2460643.5
hcaldate:28_חשון_5785