Add Admin Column to Custom Post Type List

/*************************************************************************************
****************** [ ADD ADMIN COLUMN TO CUSTOM POST TYPE LIST ] ********************/
add_filter('manage_agenda-peripheral_posts_columns' , 'mysite_add_time_columns');

function mysite_add_time_columns( $columns ) {

  $columns = array(
    'cb'           => '<input type="checkbox" />',
    'title'        => 'Title',
    'agenda_time'   => 'Agenda Time',
    'categories'   => 'Categories',
    'date'         =>  'Date',
  );
  return $columns;
}
add_action( 'manage_agenda-peripheral_posts_custom_column', 'mysite_custom_event_columns', 10, 2 );

function mysite_custom_event_columns( $column ) {

  global $post;

  switch ( $column ) {
    case 'agenda_time':
      echo get_field( "field_592272cc5765a", $post->ID );
      break;
  }
}