difference between dates in hours php code example
Example 1: php calculate date difference
$d1 = new DateTime("2018-01-10 00:00:00");
$d2 = new DateTime("2019-05-18 01:23:45");
$interval = $d1->diff($d2);
$diffInSeconds = $interval->s;
$diffInMinutes = $interval->i;
$diffInHours = $interval->h;
$diffInDays = $interval->d;
$diffInMonths = $interval->m;
$diffInYears = $interval->y;
$d1 = strtotime("2018-01-10 00:00:00");
$d2 = strtotime("2019-05-18 01:23:45");
$totalSecondsDiff = abs($d1-$d2);
$totalMinutesDiff = $totalSecondsDiff/60;
$totalHoursDiff = $totalSecondsDiff/60/60;
$totalDaysDiff = $totalSecondsDiff/60/60/24;
$totalMonthsDiff = $totalSecondsDiff/60/60/24/30;
$totalYearsDiff = $totalSecondsDiff/60/60/24/365;
Example 2: get hours difference between two dates in php
$hourdiff = round((strtotime($time1) - strtotime($time2))/3600, 1);
Example 3: 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'));