how do you specify an All Day entry for t:schedule?

[SOSELLA]

I looked at the Examples source for adding an all day entry:

        DefaultScheduleEntry entry7 = new DefaultScheduleEntry();
        entry7.setId(RandomStringUtils.randomNumeric(32));
        entry7.setTitle("All day event");
        entry7.setSubtitle("This event renders as an all-day event");
        entry7.setAllDay(true);
        model.addEntry(entry7);

The startTime() nor endTime() are not called on the entry.  How does the
entry know its day?

Thanks!