Calculate the difference between date/times in PHP

Question

I have a Date object ( from Pear) and want to subtract another Date object to get the time difference in seconds.

I have tried a few things but the first just gave

Answer 1

To do it without pear, to find the seconds 'till 17:00 you can do:

$current_time = mktime (); 
$target_time = strtotime (date ('Y-m-d'. ' 17:00:00')); 
$timediff = $target_time - $current_time;

Not tested it, but it should do what you need.