Re: Difference between 2 time entries

|Found this on the PHP web site, you can add the conversions as the first lines in the functions. function callDuration($dateTimeBegin,$dateTimeEnd) {

         $dif=$dateTimeEnd - $dateTimeBegin;

    $hours = floor($dif / 3600);
    $temp_remainder = $dif - ($hours * 3600);
         $minutes = floor($temp_remainder / 60);
    $temp_remainder = $temp_remainder - ($minutes * 60);
         $seconds = $temp_remainder;
           // leading zero's - not bothered about hours
    $min_lead=':';
    if($minutes <=9)
      $min_lead .= '0';
    $sec_lead=':';
    if($seconds <=9)
      $sec_lead .= '0';
      // difference/duration returned as Hours:Mins:Secs e.g. 01:29:32

return $hours.$min_lead.$minutes.$sec_lead.$seconds;

           }

| Chris Grigor wrote:

Morning all, I am looking to get the differnce in hours / minutes between 2 values. Currently I have 2 time entries being retruned from mysql, one which is a start time and the other which is a finish time. So $start = '13:12:17'; $finish = '23:12:17'; How would one get the differnce between these 2 times?? I have looked at using the following but am not to sure.... function timeDiff($firstTime,$lastTime) { // convert to unix timestamps $firstTime=strtotime($firstTime); $lastTime=strtotime($lastTime); // perform subtraction to get the difference (in seconds) between times $timeDiff=$lastTime-$firstTime; // return the difference return $timeDiff; } //Usage : echo timeDiff("$start","$finish"); Thanks Chris