WP Query Events

// WP_Query arguments
$args = array(
	'name'                   => 'event',
	'post_type'              => array( 'event' ),
	'post_status'            => array( 'scheduled' ),
	'nopaging'               => true,
	'order'                  => 'ASC',
	'orderby'                => 'title',
	'tax_query'              => array(
		array(
			'taxonomy'         => 'art_exhibition',
			'field'            => 'term_id',
		),
		array(
		),
	),
	'meta_query'             => array(
		'relation' => 'AND',
		array(
			'key'     => 'start_date',
			'value'   => 'now',
			'compare' => '>=',
			'type'    => 'DATE',
		),
		array(
			'key'     => 'start_time',
			'compare' => 'EXISTS',
			'type'    => 'TIME',
		),
	),
);

// The Query
$query = new WP_Query( $args );