get time difference in hours php code example

Example 1: get hours difference between two dates in php

$hourdiff = round((strtotime($time1) - strtotime($time2))/3600, 1);

Example 2: php time difference in hours

date_default_timezone_set("Africa/Johannesburg");
    $now = new DateTime();
    $future_date = new DateTime('2020-10-21 00:00:00');
    
    $interval = $future_date->diff($now);
    
    echo ($interval->format("%a") * 24) + $interval->format("%h"). " hours". $interval->format(" %i minutes ");
    print_r($now->format('Y-m-d H:i:s'));

Example 3: php hour between

$currentTime = (new DateTime('01:00'))->modify('+1 day');
$startTime = new DateTime('22:00');
$endTime = (new DateTime('07:00'))->modify('+1 day');

if ($currentTime >= $startTime && $currentTime <= $endTime) {
    // Do something
}

Example 4: calculate time difference php

$time1 = new DateTime('09:00:59');
$time2 = new DateTime('09:01:00');
$interval = $time1->diff($time2);
echo $interval->format('%s second(s)');

Result: 1 second(s)