Date and Time Zone in php

Function to get Date format by time zone:
function get_date(DateTime $time)
{

$t = clone $time;
// set time zone here
$t->setTimezone(new DateTimeZone("America/Denver"));
return $t->format("Y-m-d H:i:s");
}
?>
// usages
$date ="2008-08-03 14:52:10";
$datetime = date_create($date);
echo get_ebay_UTC_8601($datetime);
?>