[c#] How to convert a Datetime string to a current culture datetime string

I have string say "12/1/2011" in English US culture my current machine culture is English Uk which is "dd/mm/yyyy" format. How to convert the 12/1/2011 to 1/12/2011. I have tried the below format.

System.DateTime.Parse(result,System.Threading.Thread.CurrentThread.CurrentCulture)
              .ToString(System.Threading.Thread.CurrentThread.CurrentCulture.DateTimeFormat.ShortDatePattern)

but i could not able to see any output.

-Lokesh.

public static DateTime ConvertDateTime(string Date)
    {
        DateTime date=new DateTime();                        
        try
        {
            string CurrentPattern = Thread.CurrentThread.CurrentCulture.DateTimeFormat.ShortDatePattern;                
            string[] Split = new string[] {"-","/",@"\","."};
            string[] Patternvalue = CurrentPattern.Split(Split,StringSplitOptions.None);
            string[] DateSplit = Date.Split(Split,StringSplitOptions.None);
            string NewDate = "";
            if (Patternvalue[0].ToLower().Contains("d") == true && Patternvalue[1].ToLower().Contains("m")==true && Patternvalue[2].ToLower().Contains("y")==true)
            {
                NewDate = DateSplit[1] + "/" + DateSplit[0] + "/" + DateSplit[2];
            }
            else if (Patternvalue[0].ToLower().Contains("m") == true && Patternvalue[1].ToLower().Contains("d")==true && Patternvalue[2].ToLower().Contains("y")==true)
            {
                NewDate = DateSplit[0] + "/" + DateSplit[1] + "/" + DateSplit[2];
            }
            else if (Patternvalue[0].ToLower().Contains("y") == true && Patternvalue[1].ToLower().Contains("m")==true && Patternvalue[2].ToLower().Contains("d")==true)
            {
                NewDate = DateSplit[2] + "/" + DateSplit[0] + "/" + DateSplit[1];
            }
            else if (Patternvalue[0].ToLower().Contains("y") == true && Patternvalue[1].ToLower().Contains("d")==true && Patternvalue[2].ToLower().Contains("m")==true)
            {
                NewDate = DateSplit[2] + "/" + DateSplit[1] + "/" + DateSplit[0];
            }
            date = DateTime.Parse(NewDate, Thread.CurrentThread.CurrentCulture);
        }
        catch (Exception ex)
        {

        }
        finally
        {

        }

        return date;

    }

DateTime dateValue;
CultureInfo culture = CultureInfo.CurrentCulture;
DateTimeStyles styles = DateTimeStyles.None;
DateTime.TryParse(datetimestring,culture, styles, out dateValue);

var culture = new CultureInfo( "en-GB" );
var dateValue = new DateTime( 2011, 12, 1 );
var result = dateValue.ToString( "d", culture ) );

This works for me,

DateTimeFormatInfo usDtfi = new CultureInfo("en-US", false).DateTimeFormat;
DateTimeFormatInfo ukDtfi = new CultureInfo("en-GB", false).DateTimeFormat;
string result = Convert.ToDateTime("26/09/2015",ukDtfi).ToString(usDtfi.ShortDatePattern);

This works for me:

string myTime = DateTime.Parse("12/1/2011")
                        .ToString(CultureInfo.GetCultureInfo("en-GB").DateTimeFormat.ShortDatePattern);