There would be two ways to do this. The first one uses the
DateFormat pre-formatted styles.
<fmt:formatDate value="${now}" type="both" dateStyle="short" timeStyle="medium"/>
The result for today would be 8/7/08 3:18:13 PM which isn't exactly the format you wanted, but is close.
Or you can use the
SimpleDateFormat parrern:
<fmt:formatDate value="${now}" pattern="MM/dd/yy hh:mm:ss a"/>
The result being 08/07/08 03:18:13 PM which is pretty mush exactly what you want, I think.
The difference would be localization. In a locale where dates are shown as: yy.MM.dd rather than MM/dd/yy then the first option would be more recognizable to the user, while the second option may take some time for interpretation.