VB.NET Core Classes in a Nutshell

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 (note that precise output depends on the local computer’s settings for the long and short date formats):

Imports System Class TestDateTimeFormats Public Shared Sub Main() Dim dt As New Date(2000, 10, 11, 15, 32, 14) ' Displays "10/11/00 3:32:14 PM" Console.WriteLine(dt.ToString()) ' Displays "10/11/00 3:32:14 PM" Console.WriteLine("{0}", dt) 'Displays "10/11/00" Console.Writeline("{0:d}", dt) ' Displays "Wednesday, October 11, 2000" Console.WriteLine("{0:D}", dt) ' Displays "Wednesday, October 11, 2000 3:32 PM" Console.WriteLine("{0:f}", dt) ' Displays "Wednesday, October 11, 2000 3:32:14 PM" Console.WriteLine("{0:F}", dt) ' Displays "10/11/00 3:32 PM" Console.WriteLine("{0:g}", dt) ' Displays "10/11/00 3:32:14 PM" Console.WriteLine("{0:G}", dt) ' Displays "October 11" Console.WriteLine("{0:m}", dt) ' Displays "October ...