Hvis du vil have præcise tidspunkter kan du bruge den her i stedet for timeago:
<?php
function timeago($start,$end,$rcs = 0) {
    $dif   = $end-$start;
    $pds   = array('second','minute','hour','day','week','month','year','decade');
    $lngh  = array(1,60,3600,86400,604800,2630880,31570560,315705600);
    for($v = sizeof($lngh)-1; ($v >= 0)&&(($no = $dif/$lngh[$v])<=1); $v--); if($v < 0) $v = 0; $_tm = ($dif%$lngh[$v]);
    
    $no = floor($no); if($no <> 1) $pds[$v] .='s'; $x=sprintf("%d %s ",$no,$pds[$v]);
    if(($rcs == 1)&&($v >= 1)&&(($cur_tm-$_tm) > 0)) $x .= time_ago($_tm);
    return $x;
}
/**
 * A function for making time periods readable
 *
 * @author      Aidan Lister <aidan@php.net>
 * @version     2.0.0
 * @link        http://aidanlister.com/2004/04/making-time-periods-readable/
 * @param       int     number of seconds elapsed
 * @param       string  which time periods to display
 * @param       bool    whether to show zero time periods
 */
function time_duration($seconds, $use = null, $zeros = false)
{
    // Define time periods
    $periods = array (
        'years'     => 31556926,
        'Months'    => 2629743,
        'weeks'     => 604800,
        'days'      => 86400,
        'hours'     => 3600,
        'minutes'   => 60,
        'seconds'   => 1
        );
    // Break into periods
    $seconds = (float) $seconds;
    foreach ($periods as $period => $value) {
        if ($use && strpos($use, $period[0]) === false) {
            continue;
        }
        $count = floor($seconds / $value);
        if ($count == 0 && !$zeros) {
            continue;
        }
        $segments[strtolower($period)] = $count;
        $seconds = $seconds % $value;
    }
    // Build the string
    foreach ($segments as $key => $value) {
        $segment_name = substr($key, 0, -1);
        $segment = $value . ' ' . $segment_name;
        if ($value != 1) {
            $segment .= 's';
        }
        $array[] = $segment;
    }
    $str = implode(', ', $array);
    return $str;
}
printf("<strong>Cirka</strong> %s<br /><strong>Præcist</strong> %s", timeago(strtotime("10:41"), strtotime("14:37")), time_duration(strtotime("14:37")-strtotime("10:41")));
?>