Defaults

   o  If you do not enter .SET DATE or .SET TIME, entering a $$time,
      $$date, or any of the appropriate date or time parameters with
      the substitute flag pair ($$) will give you the date or time
      that DSR began processing the file.

   o  If you enter either of these .SET commands, you can retain
      a previous value by omitting its value from the command. You
      must, however, type any comma that would have followed it.

   o  If you enter either command without specifying any values for
      it, you will get the current date or the time as of the second
      the command is executed.