- Output for 7.1.25 - 7.1.32, 7.2.0 - 7.2.23, 7.3.0 - 7.3.10
- 159655953000
<?php
// Now
$time = time();
// Date you want
$date = new DateTime('2014-09-18');
$newTime = $date->format('U');
// Copy paste the result into the command below
echo ($time - $newTime) * 1000;