<?php
    $events = EM_Events::get(array('scope'=>'all','orderby'=>'event_start_date,event_start_time'));

    $args = array(
        'role' => 'technician',
        'numberposts' => -1,
        'order' => 'DESC',
        'orderby' => 'meta_value',
        'meta_key' => 'assessment_date',
    );

    $techs = new WP_User_Query( $args );

    foreach($events as $event ) :
        setup_postdata( $post );
    endforeach;

    $previous_course_date = "";

    foreach ( $events as $event ) {
        $current_course_date = $event->event_start_date;
            if ($current_course_date != $previous_course_date) { ?>

                <h5><strong><?php echo $current_course_date; ?></strong></h5>
                <?php // Show user information ?>
            <?php }
    }?>
            <?