<?php

	$datestr="2014-08-28 19:10:18";
	$date = strtotime($datestr);

	$diff = $date - time();			
	$days = floor($diff/(60 * 60 * 24));	
	$hours = round(($diff - $days * 60 * 60 * 24) / (60 * 60));

  	echo "$days days $hours hours left";
?>