I’m working on an app and found that this keeps failing saying “DateTime __construct() Failed to parse time string (xxxxxxxx) at position x” Code was as follows: $epoch = 1447258140; $dt = new DateTime($epoch); // This was the failing point $timestamp = $dt->format('Y-m-d H:i:s'); But I learned here: http://stackoverflow.com/questions/17427503/php-datetime-construct-failed-to-parse-time-string-xxxxxxxx-at-position-x That it’s best to just create the DateTime, then use one of its methods to set the time: $epoch = 1447258140; $dt = new DateTime(); $dt->setTimestamp($epoch); $timestamp = $dt->format('Y-m-d H:i:s'); That worked wonderfully!