src/Helper/TimeFormatterTrait.php
public function formatSeconds($elapsedTime)
    {
        $seconds = floor($elapsedTime);
        $output = array();

        //Hours (only if $seconds > 3600)
        if ($seconds > 3600) {
            $hours    = floor($seconds / 3600);
            $seconds  = $seconds - (3600 * $hours);
            $output[] = number_format($hours, 0);
        }

        //Minutes
        if ($seconds >= 60) {
            $minutes  = floor($seconds / 60);
            $seconds  = $seconds - ($minutes * 60);
            $output[] = str_pad((string) $minutes, 2, '0', STR_PAD_LEFT);
        }
        else {
            $output[] = '00';
        }

        //Seconds
        $output[] =($seconds > 0)
            ? str_pad((string) $seconds, 2, '0', STR_PAD_LEFT)
            : '00';

        return implode(':', $output);
    }
public function formatSeconds($elapsedTime)
    {
        $seconds = floor($elapsedTime);
        $output = array();

        //Hours (only if $seconds > 3600)
        if ($seconds > 3600) {
            $hours    = floor($seconds / 3600);
            $seconds  = $seconds - (3600 * $hours);
            $output[] = number_format($hours, 0);
        }

        //Minutes
        if ($seconds >= 60) {
            $minutes  = floor($seconds / 60);
            $seconds  = $seconds - ($minutes * 60);
            $output[] = str_pad((string) $minutes, 2, '0', STR_PAD_LEFT);
        }
        else {
            $output[] = '00';
        }

        //Seconds
        $output[] =($seconds > 0)
            ? str_pad((string) $seconds, 2, '0', STR_PAD_LEFT)
            : '00';

        return implode(':', $output);
    }
Format Seconds into readable walltime (HH:ii:ss)

@param float $elapsedTime
@return string