I’ve checked this and it’s not the problem. the first line is exact the same code as used in the Training/Conference example you provide on this site. It is used in the Autocomplete fields.
I’ve not used the split function which is used in the original version and that solves the problem.
function parseDateFunc(a){
// Set the desired format in the variable “f”
var f = “dd/MM/yyyy HH:mm” , d = new Date(a);
f = spjs.dffs.formatDate(d, f);
return f.split(/ |:/);
}