Convert string of "dd/MM/yyyy" format into Datetime using C#?

You should use DateTime.ParseExact, to get the correct results

DateTime dt=DateTime.ParseExact("19/02/2017", "dd/MM/yyyy", CultureInfo.InvariantCulture);

Read more about Datetime.ParseExact 

Or You can use DateTime.TryParseExact , it is also same, code will be like this

DateTime dt;
if (DateTime.TryParseExact("19/02/2017", "dd/MM/yyyy", 
                            CultureInfo.InvariantCulture, 
                            DateTimeStyles.None,
    out dt))
{
    //date is valid, do something here
}

OR

Simply

string strDate = "24/01/2013";
DateTime date = DateTime.ParseExact(strDate, "dd/MM/YYYY", null);

Also read:

How to convert datetime from one timezone to another in C#?

You can pass your date in the code below

string formattedDate = date.ToString("dd/MM/yyyy", CultureInfo.InvariantCulture)

If you have datetime string and want to convert it into Datetime

DateTime myDate = DateTime.ParseExact("2022-05-08 14:40:52,531", "yyyy-MM-dd HH:mm:ss,fff",
                                       System.Globalization.CultureInfo.InvariantCulture);

You can provide format with DateTime.ParseExact()

OR

DateTime myDate;
if (!DateTime.TryParse(dateString, out myDate))
{
    // handle parse failure
}

Thanks.