Converts this Date object to a String of the form:

 dow mon dd hh:mm:ss zzz yyyy

where:

dow is the day of the week (Sun, Mon, Tue, Wed, Thu, Fri, Sat).
mon is the month (Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec).
dd is the day of the month ( 01 through 31), as two decimal digits.
hh is the hour of the day ( 00 through 23), as two decimal digits.
mm is the minute within the hour ( 00 through 59), as two decimal digits.
ss is the second within the minute ( 00 through 61, as two decimal digits.
zzz is the time zone (and may reflect daylight saving time). Standard time zone abbreviations include those recognized by the method parse. If time zone information is not available, then zzz is empty - that is, it consists of no characters at all.
yyyy is the year, as four decimal digits.

Returns: a string representation of this date.