dato om til dansk tid

PHP kode 

 <?php
             $result = mysql_query("SELECT * FROM  `nyheder` ORDER BY  `nyheder`.`dato` DESC");
             $num_rows = mysql_num_rows($result); 
                         if ($num_rows == 0) {
                             echo "Der ingen nyheder lige nu";    
                         }        
                 while($row = mysql_fetch_array($result))
                     {
             ?>
             <div class="nyhederbox">
                   <li><h4><?php echo $row['overskiftet'];?></h4></li>
                 <div class="nyhederboxinfo">
                     <?php echo date("d-M-Y H", strtotime($row['dato']));?> - 
                     <li><?php echo $row['skrevet_af'];?></li>
                 </div>
                 <?php echo $row['tekst'];?>
                </div>
             <?php
                 }
             ?>