Converts the value of the current xtd::date_time object to its equivalent long time string representation.
Returns
A string that contains the long time string representation of the current xtd::date_time object.
Remarks
The return value is identical to the value returned by specifying the "T" standard xtd::date_time format string with the xtd::date_time::to_string(const xtd::ustring&) method.