##Date and Time
=TIMEVALUE(SUBSTITUTE("{{OccurredAt}}"," at ", " ")) + DATEVALUE(SUBSTITUTE("{{OccurredAt}}"," at ", " "))
##Date
=DATEVALUE(SUBSTITUTE("{{OccurredAt}}"," at ", " "))
##Time
=TIMEVALUE(SUBSTITUTE("{{OccurredAt}}"," at ", " "))
Simple just place either or both separated by ||| in the
Formatted Row Input on IFTTT
Currently the arguments must be separated by semicolons (;) in equation. This only fixes the parsing error however. It seems the Spreadsheet cannot parse the date (nor the time) anyway... (Additional info: it seems that the new spreadsheet version is default now)