Try MM/dd/yyyy hh:mm:ss a format.
Java code to create XML file.
xmlResponse.append("mydate>").append(this.formatDate(resultSet.getTimestamp("date"), "MM/dd/yyyy hh:mm:ss a")).append("");
public String formatDate(Date date, String format)
{
String dateString = "";
if(null != date)
{
SimpleDateFormat dateFormat = new SimpleDateFormat(format);
dateString = dateFormat.format(date);
}
return dateString;
}