This is a linked open data (LOD) about date and time. "C.E. 2026 February 18" is a date of Gregorian Calendar (Calendar ID: 2.1).
http://datetime.hutime.org/calendar/2.1/date/C.E._2026_February_18
hcal:2.1/date/2461089.5
hcal:2.1/date/C.E._2026_February_18
hcaldate:2461089.5
hcaldate:C.E._2026_February_18