Question

I need to display the time but it must start from 00:00:00? I’ve got the following but it uses the current time.

print(date("H:i:s"));

Answer 1

As an alternative to mktime(), try the newer DateTime class, eg

$dt = new DateTime;
$dt->setTime(0, 0);
echo $dt->format('H:i:s');

// Add one hour
$dt->add(new DateInterval('PT1H'));
echo $dt->format('H:i:s');

Update

The flexibility of DateInterval makes this a very good candidate for a timer, eg

// add 2 years, 1 day and 9 seconds
$dt->add(new DateInterval('P2Y1DT9S'));