WP_Query and two custom fields returns no posts

The first query gives the expected results when the date format was corrected.

$query = new WP_Query(array(
'post_type'=>'games',
'orderby'=>'menu_order',
'order'=>'asc',
'posts_per_page' => 1,
'meta_query'=> array(
'relation'=>'AND',
array(
'key'=>'game_date_time',
'value'=>$nowtoday,
'compare' =>'>'
),
array(
'key'=>'home_team',
'value'=>'Allen',
'compare'=>'LIKE'
)
)
));