Collections.sort(list, new Comparator<String>() {
DateFormat f = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
@Override
public int compare(String o1, String o2) {
try {
return f.parse(o1).compareTo(f.parse(o2));
} catch (ParseException e) {
throw new IllegalArgumentException(e);
}
}
});