<fmt:formatDate value="${isoDate}" type="both"/>
2004-5-31 23:59:59

<fmt:formatDate value="${date}" type="date"/>
2004-4-1

<fmt:formatDate value="${isoDate}" type="time"/>
23:59:59

<fmt:formatDate value="${isoDate}" type="date" dateStyle="default"/>
2004-5-31

<fmt:formatDate value="${isoDate}" type="date" dateStyle="short"/>
04-5-31

<fmt:formatDate value="${isoDate}" type="date" dateStyle="medium"/>
...