Community Events 3.6 // Limit Minutes to just '00' and '30'

gistfile1.php

add_action( 'wp_head', 'community_limit_minutes' );
function community_limit_minutes() {
  if ( tribe_is_community_edit_event_page() ) {
?>
<style>  
  select[name='EventStartMinute'] option, select[name='EventEndMinute'] option {display:none !important;}
  select[name='EventStartMinute'] option[value='00'], select[name='EventStartMinute'] option[value='30'], select[name='EventEndMinute'] option[value='00'], select[name='EventEndMinute'] option[value='30'] {display:inline !important;}
</style>
<?php
	}
}