Question

I receiving dates in the USA standard format mm/dd/yy.

I can upload to MySQL only in the format of yyyy-MM-dd.

How can you convert mm/dd/yy format to yyyy-MM-dd format in C#?

Answer 1

You could parse it and then format it. (DateTime.ParseExact, DateTime.ToString)

However, you shouldn’t have to reformat for MySQL’s benefit, and it suggests your database access is inappropriate:

• Your database column should be a DATETIME column or something similar, if you’re storing dates in it
• Your database code shouldn’t be including the value as a string at all. It should be passing it as a parameter with a DateTime value

So using parameterized SQL, you should just need to parse (e.g. using DateTime.ParseExact), then pass it up as a DateTime:

DateTime date = DateTime.ParseExact(text, "mm/dd/yy",
                                    CultureInfo.InvariantCulture);
command.Parameters.Add("@Foo", MySqlDbType.DateTime).Value = date;