In C#, we use a method DateTime.ToString(string) to get the value of a DateTime in specific pattern of string.

Syntax:-

public string ToString( string format )

It accepts one parameter "format" which specifies the date and time string format pattern. If the user didn't specify the value of this parameter then it will use a general format.

This function returns a string value of DateTime variable as specified in format variable.

Exceptions thrown by this method are as follows:

1. FormatException ----------> This exception occurs if the length of format variable is 1 or if the format variable does not contain a valid format pattern.

2. ArgumentOutOfRangeException -------> It occurs when the range of date and time is not supported by the calendar.

C# Code

using System;

class DateTimeProgram
{
   static void Main()
    {
       DateTime dt = new DateTime(2016, 5, 16);
       Console.WriteLine(dt);	
    }
}

Output

August 15

C# code to display the month in numeric format

using System;

class MProgram
{
   static void Main()
    {
       DateTime mn = new DateTime(2016, 5, 16);
       Console.WriteLine(mn.ToString("MM"));
    }
}

Output

05

C# code to display the month in string format

using System;

class MProgram
{
   static void Main()
    {
       DateTime ms = new DateTime(2016, 5, 16);
       Console.WriteLine(ms.ToString("MMMM"));
    }
}

Output

May

DateTime.ToString() Patterns:

1. dddd, dd MMMM yyyy ----------> Monday, 16 May 2016

2. dddd, dd MMMM yyyy ----------> HH:mm Monday, 16 May 2016 12:20

3. dddd, dd MMMM yyyy ----------> hh:mm tt Monday, 16May 2016 12:30 PM

4. dddd, dd MMMM yyyy ----------> H:mm Monday, 16 May 2016 12:35PM

5. dddd, dd MMMM yyyy ----------> hh:mm tt Monday, 16 May 2016 12:40 PM

6. dddd, dd MMMM yyyy HH:mm:ss ------> Monday, 16 May 2016 12:45:09

7. MM/dd/yyyy HH:mm --------------> 05/16/2016 12:50

8. MM/dd/yyyy hh:mm tt -------------> 05/16/2016 12:52 PM

9. MM/dd/yyyy H:mm ---------------> 05/16/2016 12:55

10. DateTime.ToString ( 'G' ) :

MM/dd/yyyy HH:mm:ss ------------> 05/16/2016 01:03:35