Calculate difference between 2 times in hours in PHP

问题

I have two times - For eg- the current time - 08:24 and date is 02/01/2013 in dd/mm/yyyy format and I have another time at 13:46 and date is 31/12/2012 . So, how can I calculate the difference between the 2 times in hours using PHP. (i.e. 42.63 hours) Thanks in advance.

回答1:

Convert them both to timestamp values, and then subtract to get the difference in seconds.

$ts1 = strtotime(str_replace('/', '-', '02/01/2013 08:24'));
$ts2 = strtotime(str_replace('/', '-', '31/12/2012 13:46'));
$diff = abs($ts1 - $ts2) / 3600;

回答2:

Another way is to use PHP's date-related classes. The example below uses DateTime::diff() to get a DateInterval object ($interval). It then uses the interval's properties to arrive at the total number of hours in the interval.

$a = DateTime::createFromFormat('H:i d/m/Y', '08:24 02/01/2013');
$b = DateTime::createFromFormat('H:i d/m/Y', '13:46 31/12/2012');

$interval = $a->diff($b);
$hours    = ($interval->days * 24) + $interval->h
          + ($interval->i / 60) + ($interval->s / 3600);

var_dump($hours); // float(42.633333333333)

回答3:

I got a simple solution, Try this one -

echo getTimeDiff("10:30","11:10");

function getTimeDiff($dtime,$atime)
    {
        $nextDay = $dtime>$atime?1:0;
        $dep = explode(':',$dtime);
        $arr = explode(':',$atime);
        $diff = abs(mktime($dep[0],$dep[1],0,date('n'),date('j'),date('y'))-mktime($arr[0],$arr[1],0,date('n'),date('j')+$nextDay,date('y')));
        $hours = floor($diff/(60*60));
        $mins = floor(($diff-($hours*60*60))/(60));
        $secs = floor(($diff-(($hours*60*60)+($mins*60))));
        if(strlen($hours)<2){$hours="0".$hours;}
        if(strlen($mins)<2){$mins="0".$mins;}
        if(strlen($secs)<2){$secs="0".$secs;}
        return $hours.':'.$mins.':'.$secs;
    }

回答4:

If you have the dates as timestamps (use strtotime if needed), then just subtract them, optionally take the absolute value, then divide to 3600 (number of seconds in an hour). Easy ^_^

回答5:

I think the following code is useful to get an idea about how to calculate time difference using PHP

function date_diff($date_1 , $date_2 , $format) {
    $datetime1 = date_create($date_1);
    $datetime2 = date_create($date_2);

    $diff = date_diff($datetime1, $datetime2);

    return $diff->format($format);
}

The above function is useful to calculate difference between two times as well as dates. The dates are given as arguments with the output format.

The output format are given below:

// '%y Year %m Month %d Day %h Hours %i Minute %s Seconds' => 1 Year 3 Month 14 Day 11 Hours 49 Minute 36 Seconds // '%y Year %m Month %d Day' => 1 Year 3 Month 14 Days // '%m Month %d Day' => 3 Month 14 Day // '%d Day %h Hours' => 14 Day 11 Hours // '%d Day' => 14 Days // '%h Hours %i Minute %s Seconds' => 11 Hours 49 Minute 36 Seconds // '%i Minute %s Seconds' => 49 Minute 36 Seconds // '%h Hours => 11 Hours // '%a Days

回答6:

Just putting this here, for anyone who needs to find the difference between two dates/timestamps in Hours, Minutes 'AND' Seconds!!

$futureDate_raw = '12/13/2018'; // This is your finish date.
$fdate = strtotime($futureDate_raw);

$hours   = (($fdate - time()) / 3600;
$mins    = (($fdate - time()) % 3600) / 60;
$seconds = ((($fdate- time()) % 3600) % 60);

来源：https://stackoverflow.com/questions/16879373/calculate-difference-between-2-times-in-hours-in-php

标签

php

datetime

time

date-arithmetic