- mktime: documentation ( source)
- date_default_timezone_set: documentation ( source)
- date: documentation ( source)
- strtotime: documentation ( source)
<?php
date_default_timezone_set('America/New_York');
$date = date('m-d-Y', mktime(0,0,0,7,27,2014));
echo $date;
echo strtotime($date);