Reformat schedule details for multi-day events

schedule-details.php

function tribe_reformat_schedule_details( $schedule, $event_id, $before, $after ) {
	if ( tribe_event_is_multiday( $event_id ) ) {
		$start_date = tribe_get_start_date( $event_id, false, 'F j' );
		$end_date = tribe_get_end_date( $event_id, false, 'F j' );

		$end_date = strncmp( $start_date, $end_date, 3 ) === 0 ? tribe_get_end_date( $event_id, false, 'j' ) : $end_date;

		$start_time = tribe_get_start_time( $event_id );
		$end_time = tribe_get_end_time( $event_id );

		$schedule = $before . $start_date . ' - ' . $end_date . ' @ ' . $start_time . ' - ' . $end_time . $after;
	}

	return $schedule;
}
add_filter( 'tribe_events_event_schedule_details', 'tribe_reformat_schedule_details', 10, 4 );