Group by day for List view of The Events Calendar

functions.php

<?php
/*
 * Modification of tribe_events_list_the_date_headers() for date grouping
 * call this instead in tribe-events/list/loop.php
 *
 * @source the-events-calendar/src/functions/template-tags/loop.php
 */
function conact_list_the_date_headers() {

    $show_headers = apply_filters( 'tribe_events_list_show_date_headers', true );

    $html = '';

    if ( $show_headers ) {

        global $post, $wp_query;

        $event_year        = tribe_get_start_date( $post, false, 'Y' );
        $event_month       = tribe_get_start_date( $post, false, 'm' );
        $event_day         = tribe_get_start_date( $post, false, 'd' );
        $month_year_format = tribe_get_date_option( 'monthAndYearFormat', 'F Y' );
        $day_format        = tribe_get_date_option( 'weekDayFormat', 'd' );

        if ( $wp_query->current_post > 0 ) {
            $prev_post = $wp_query->posts[ $wp_query->current_post - 1 ];
            $prev_event_year  = tribe_get_start_date( $prev_post, false, 'Y' );
            $prev_event_month = tribe_get_start_date( $prev_post, false, 'm' );
            $prev_event_day   = tribe_get_start_date( $prev_post, false, 'd' );
        }

        if ( $wp_query->current_post === 0 || ( $prev_event_day != $event_day || ( $prev_event_day == $event_day && $prev_event_month != $event_month ) || ( $prev_event_month == $event_month && $prev_event_year != $event_year ) ) ) {
            $html .= sprintf(
                '</dd></dl><dl><dt>' .  "<span class='tribe-events-list-separator-month'><span>%s</span></span>" . '</dt><dd>',
                tribe_get_start_date( $post, false, $day_format )
            );
            echo apply_filters(
                'tribe_events_list_the_date_headers',
                $html, 
                $event_month, 
                $event_year
            );
        }

    }
}


function conact_close_dl() {
    echo '</dd></dl>';
}

add_action( 'tribe_events_after_loop', 'conact_close_dl' );