How do I add hours to an hour

To add an hour you can do this:

$timestamp = strtotime('10:15') + 60*60;
$dataHora = strftime('%d - %m - %Y, %H:%M', $timestamp); // 24 - 12 - 2016, 11:15

To add 30 mins:

$timestamp = strtotime('10:15') + 60*30;
$dataHora = strftime('%d - %m - %Y, %H:%M', $timestamp); // 24 - 12 - 2016, 10:45

strtotime returns the number of secs

You can see more here about the formatting you want link

It has a simple way that is:

$date = date('Y-m-d H:i', strtotime('+30 minutes')); echo $date;

To add 1 hour:

$date_1_hora = date('Y-m-d H:i', strtotime('+1 Hours')); echo $date_1_hora;