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C# in a Nutshell by Peter Drayton, Ted Neward, Ben Albahari

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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}", ...

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