String Split Multiple Char or A or B Conditon

char[] delimiters = new char[] { '/', '-' };

                        string[] _DateTimeSplit = Request.QueryString["StudyDate"].ToString().Split(' ');

                        string[] _Date = _DateTimeSplit[0].Split(delimiters, StringSplitOptions.RemoveEmptyEntries);

                        string _SDate = _Date[1] + "/" + _Date[0] + "/" + _Date[2] + " " + _DateTimeSplit[1];

                        _StudyDate = Convert.ToDateTime(_SDate);