Localized type conversion
If you need a DateTime or double convertion depending on system localization here are some examples: Date to string DateTime dt = new DateTime(2012, 06, 13, 17, 50, 00); string date_US = dt.ToString(new CultureInfo("en-US").DateTimeFormat); string date_GB = dt.ToString(new CultureInfo("en-GB").DateTimeFormat); string date_PL = dt.ToString(new CultureInfo("pl-PL").DateTimeFormat); string date_RU = dt.ToString(new CultureInfo("ru-RU").DateTimeFormat); Console.WriteLine("date_US = {0}", date_US); Console.WriteLine("date_GB = {0}", date_GB); Console.WriteLine("date_PL = {0}", date_PL); Console.WriteLine("date_RU = {0}", date_RU); /* date_US = 6/13/2012 5:50:00 PM date_GB = 13/06/2012 17:50:00 date_PL = 2012-06-13 17:50:00 date_RU = 13.06.2012 17:50:00 */ String to date date_US = "6/13/2012 5:50:00 PM"; date_GB = "13/06/2012 17:50:00"; date_PL = "2012-06-13 17:50:00"; d...