B.2 DateTime Format Specifiers

Table B-3 lists the valid format specifiers supported by the Format method on the DateTime type (see System.IFormattable).

Table B-3. DateTime Format Specifiers

Specifier

String result

d

MM/dd/yyyy

D

dddd, MMMM dd, yyyy

f

dddd, MMMM dd, yyyy HH:mm

F

dddd, MMMM dd, yyyy HH:mm:ss

g

MM/dd/yyyy HH:mm

G

MM/dd/yyyy HH:mm:ss

m, M

MMMM dd

r, R

Ddd, dd MMM yyyy HH':'mm':'ss 'GMT'

s

yyyy-MM-dd HH:mm:ss

S

yyyy-MM-dd HH:mm:ss GMT

t

HH:mm

T

HH:mm:ss

u

yyyy-MM-dd HH:mm:ss

U

dddd, MMMM dd, yyyy HH:mm:ss

y, Y

MMMM, yyyy

Here's an example that uses these custom format specifiers on a DateTime value:

using System;
class TestDateTimeFormats {
  static void Main( ) {
    DateTime dt = new DateTime(2000, 10, 11, 15, 32, 14);
    // Prints "2000-10-11T15:32:14"
    Console.WriteLine(dt.ToString( )); 
    // Prints "Wednesday, October 11, 2000"
    Console.WriteLine("{0}", dt);     
    // Prints "10/11/2000"
    Console.WriteLine("{0:d}", dt); 
    // Prints "Wednesday, October 11, 2000"
    Console.WriteLine("{0:D}", dt); 
    // Prints "Wednesday, October 11, 2000 3:32 PM"
    Console.WriteLine("{0:f}", dt); 
    // Prints "Wednesday, October 11, 2000 3:32:14 PM"
    Console.WriteLine("{0:F}", dt);  
    // Prints "10/11/2000 3:32 PM"
    Console.WriteLine("{0:g}", dt); 
    // Prints "10/11/2000 3:32:14 PM"
    Console.WriteLine("{0:G}", dt);
    // Prints "October 11"
    Console.WriteLine("{0:m}", dt);
    // Prints "October 11"
    Console.WriteLine("{0:M}", dt);
    // Prints "Wed, 11 Oct 2000 22:32:14 GMT"
    Console.WriteLine("{0:r}", dt); 
    // Prints "Wed, 11 Oct 2000 22:32:14 GMT"
    Console.WriteLine("{0:R}", dt); 
    // Prints "3:32 PM"
    Console.WriteLine("{0:t}", dt); 
    // Prints "3:32:14 PM"
    Console.WriteLine("{0:T}", dt); 
    // Prints "2000-10-11 22:32:14Z"
    Console.WriteLine("{0:u}", dt); 
    // Prints "Wednesday, October 11, 2000 10:32:14 PM"
    Console.WriteLine("{0:U}", dt); 
    // Prints "October, 2000"
    Console.WriteLine("{0:y}", dt); 
    // Prints "October, 2000"
    Console.WriteLine("{0:Y}", dt); 
    // Prints "Wednesday the 11 day of October in the year 2000"
    Console.WriteLine(
      "{0:dddd 'the' d 'day of' MMMM 'in the year' yyyy}", dt);
  }
}


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