gistfile1.php

$date = date_make_date($value[$v], $value['timezone_db']);
if ($date) {
	date_timezone_set($date, timezone_open($value['timezone']));
	//If the time is not midnight (0:00) when use medium format containing hours and minutes 
	$format = (intval(date_format_date($date, 'custom', 'Gi')) > 0) ? 'medium' : 'small';
  $date_values[] = date_format_date($date, $format);
}