public void fireTimeSectionEvent(final TimeSectionEvent EVENT) {
        final EventHandler<TimeSectionEvent> HANDLER;
        final EventType                      TYPE = EVENT.getEventType();
        if (TimeSectionEvent.TIME_SECTION_ENTERED == TYPE) {
            HANDLER = getOnTimeSectionEntered();
        } else if (TimeSectionEvent.TIME_SECTION_LEFT == TYPE) {
            HANDLER = getOnTimeSectionLeft();
        } else {
            HANDLER = null;
        }

        if (null == HANDLER) return;

        HANDLER.handle(EVENT);
    }
Checks if the section days contains the day of week of the given ZonedDateTime
object and if the section contains the time itself. With this one can react if
a time "enters"/"leaves" a section.
@param DATE_TIME
src/main/java/eu/hansolo/tilesfx/TimeSection.java