System.DateTime.Now.Day.ToString("DD")

Try

MessageBox.Show(Format(Now.Day, "00"))

HTH :)

try lower case "dd"

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconcustomdatetimeformatstrings.asp

for some reason, it's putting dd in the string such as 04dd for this:

System.DateTime.Now.ToString("MM") & System.DateTime.Now.Day.ToString("dd")

why is the month working but not the day in this case?

Dim MyDate As New DateTime(now)
Dim MyString As String = MyDate.ToString("dd")

why can't I do it as I did the month?

System.DateTime.Now.ToString("MM") works

Dim MyDate As New DateTime(now)

Error: Value of type 'Date' cannot be converted to 'Long'.

I'd still prefer to do it this way, just like I did for month: System.DateTime.Now.Day.ToString("dd")

Dim fun As Date
      fun = Now
      MsgBox(Format(fun, "dd"))

What AlexFM says works for me