Add this code to the Custom CSS field on the Appearance tab of your Event Calendar widget’s settings:
/* Category order */
.eapp-events-calendar-category-component {
order: 4;
}
/* Name order */
.eapp-events-calendar-name-component {
order: 3;
}
/* Tags order */
.eapp-events-calendar-tags-component {
order: 2;
}
/* Location and time order */
.eapp-events-calendar-slider-item-locationAndTime {
order: 1;
}