How to change string to date format

Question

5.00/5 (1 vote)

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C#

Hi,

I need to change the string to Date format in c#

i.e 2/22/2014 5:08:46 PM to 2014-02-22.

Thanks
GSS

Posted 22-Feb-14 3:21am

Gssankar

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Comments

CHill60 22-Feb-14 9:27am

2014-02-22 is not a date format (there isn't one in C# it's DateTime). Are you saying that you have something like string dt = "2/22/2014 5:08:46 PM"; or do you have DateTime dt; with a value of '2/22/2014 5:08:46 PM' and you want to format the latter without the time?

Gssankar 22-Feb-14 9:40am

Thanks Chill for your reply.

string recDate = 2/22/2014 5:08:46 PM; I need time also.

3 solutions

Solution 2

1. First, check that the date string is a valid one using tryparse;
2. Specify the desired date format;
3. then can do the conversion.

C#

using System;

public class Program
{
    public static void Main()
    {
          // change 2/22/2014 5:08:46 PM to 2014-02-22.
          string dateString = "2/22/2014 5:08:46 PM";

          Console.WriteLine("The original string is {0}", dateString);

          DateTime dt;

          if (DateTime.TryParse(dateString, out dt))
          {
               string format = "yyyy-MM-dd";
               Console.WriteLine(dt.ToString(format));
          }
          else
          {
              Console.WriteLine("Not a valid datetime");
          }
    }
}

Posted 22-Feb-14 4:00am

Peter Leow

Updated 22-Feb-14 4:03am

v2

Solution 1

C#

// String to DateTime
 String MyString;
 MyString = "2/22/2014 5:08:46 PM";

 DateTime MyDateTime;
 MyDateTime = new DateTime();
 MyDateTime = DateTime.ParseExact(MyString, "yyyy-MM-dd HH:mm", null);

A very good article found on CodeProject, Easy String to DateTime, DateTime to String and Formatting[^] and yes, MSDN[^] as well.

-KR

Posted 22-Feb-14 3:38am

Krunal Rohit

Updated 22-Feb-14 6:32am

v2

Comments

Gssankar 22-Feb-14 9:52am

Thanks Rohit for your reply.
But I have received this Error

String was not recognized as a valid DateTime.

Krunal Rohit 22-Feb-14 12:33pm

Answer is updated, take a look.

-KR

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Gssankar · Accepted Answer · 2014-02-22T04:07:00

Solution 3

C#

//Finally, I cleared my solution.
string  recDate = "2/22/2014 5:08:46 PM";
DateTime dr = Convert.ToDateTime(recDate);
object s = String.Format("{0:u}", dr);

Posted 22-Feb-14 4:07am

Gssankar

Updated 22-Feb-14 4:11am

v2

Comments

CHill60 22-Feb-14 10:46am

You would be better off using one of the DateTime parse methods rather than Convert - TryParse would be my choice.