Unknown Format Conversion Exception : Formatter Specifiers « Development « Java Tutorial

import java.util.Date;
import java.util.Formatter;

public class MainClass {
  public static void main(String args[]) {
    Formatter fmt = new Formatter();

    fmt.format("%t", new Date());
Exception in thread "main" java.util.UnknownFormatConversionException: Conversion = 't'
  at java.util.Formatter$FormatSpecifier.(Formatter.java:2646)
  at java.util.Formatter.parse(Formatter.java:2477)
  at java.util.Formatter.format(Formatter.java:2411)
  at java.util.Formatter.format(Formatter.java:2364)
  at MainClass.main(MainClass.java:8)

6.5.Formatter Specifiers
6.5.1.Formatting Output with Formatter
6.5.2.The Format Specifiers
6.5.3.The %g format specifier causes Formatter to use either %f or %e, whichever is shorter
6.5.4.Hex: %x, Octal: %o: Integer hexadecimal, Octal integer
6.5.5.%h: Hash code of the argument
6.5.6.%a: Floating-point hexadecimal
6.5.7.Unknown Format Conversion Exception
6.5.8.Formatter with different data types
6.5.9.using the %t specifier with Formatter.
6.5.10.Use Formatter to vertically align numeric values.
6.5.11.Use Formatter to left-justify strings within a table.
6.5.12.Using group separators.
6.5.13.The # symbol shows a digit or nothing if no digit present