Know24.Net - DateTime Format Specifier Reference

Monday, July 23, 2007

I've included a quick "DateTime.ToString Format" lookup. Very useful if you're having trouble remembering 40+ DateTime format specifiers.

The following specifiers and their results are based on the following date:
January 3, 0001 A.D., 02:09:20.444 P.M.  - thank you MSDN :)


Custom format string Yields
-------------------- ------
                "%y" "1"
                "yy" "01"
               "yyy" "001"
              "yyyy" "0001"
             "yyyyy" "00001"
                "%M" "1"
                "MM" "01"
               "MMM" "Jan"
              "MMMM" "January"
                "%d" "3"
                "dd" "03"
               "ddd" "Wed"
              "dddd" "Wednesday"
                "%g" "A.D."
                "gg" "A.D."
                "%h" "2"
                "hh" "02"
                "%H" "14"
                "HH" "14"
                "%m" "9"
                "mm" "09"
                "%s" "20"
                "ss" "20"
                "%f" "4"
                "ff" "44"
               "fff" "444"
              "ffff" "4440"
             "fffff" "44400"
            "ffffff" "444000"
           "fffffff" "4440000"
                "%F" "4"
                "FF" "44"
               "FFF" "444"
              "FFFF" "444"
             "FFFFF" "444"
            "FFFFFF" "444"
           "FFFFFFF" "444"
                "%t" "P"
                "tt" "PM"
                "%z" "-8"
                "zz" "-08"
               "zzz" "-08:00"
"'The year is' yyyy" "The year is 0001"
""The year is" yyyy" "The year is 0001"
                "\\" "\"

If we format different kinds of DateTime's using "K"
        DateTimeKind Yields
        ------------ ------
         Unspecified ""
                 Utc "Z"
               Local "-08:00"