Wordpress shortcode based on Advanced Custom Fields' standard shortcode that adds the ability to specify a format for date fields.

functions.php

/* Enhanced ACF date shortcode. Return format must be set to Ymd in ACF for this to work
   Example: [acf_date field="my_date_field" post_id="1000" date_format="d F Y"]
*/
function acf_date_shortcode($atts)
{
	extract(shortcode_atts(array(
		'field'			=> '',
		'post_id'		=> false,
		'format_value'	=> true,
		'date_format' 	=> ''
	), $atts));

	$acf_date = get_field($field, $post_id, $format_value);

	$value = date_i18n($date_format, strtotime($acf_date));
	return $value;
}
add_shortcode('acf_date', 'acf_date_shortcode');