diff --git a/htdocs/core/lib/date.lib.php b/htdocs/core/lib/date.lib.php
index 67c7df4be5b..931f30ce998 100644
--- a/htdocs/core/lib/date.lib.php
+++ b/htdocs/core/lib/date.lib.php
@@ -144,7 +144,7 @@ function convertTime2Seconds($iHours=0,$iMinutes=0,$iSeconds=0)
 /**	  	Return, in clear text, value of a number of seconds in days, hours and minutes
  *
  *    	@param      int		$iSecond		Number of seconds
- *    	@param      string	$format		    Output format ('all': total delay days hour:min like "2 days 12:30"", 'allhourmin': total delay hours:min like "60:30", 'allhour': total delay hours without min/sec like "60:30", 'fullhour': total delay hour decimal like "60.5" for 60:30, 'hour': only hours part "12", 'min': only minutes part "30", 'sec': only seconds part, 'month': only month part, 'year': only year part);
+ *    	@param      string	$format		    Output format ('all': total delay days hour:min like "2 days 12:30", 'allwithouthour': total delay days without hour part like "2 days", 'allhourmin': total delay with format hours:min like "60:30", 'allhour': total delay hours without min/sec like "60:30", 'fullhour': total delay hour decimal like "60.5" for 60:30, 'hour': only hours part "12", 'min': only minutes part "30", 'sec': only seconds part, 'month': only month part, 'year': only year part);
  *      @param      int		$lengthOfDay    Length of day (default 86400 seconds for 1 day, 28800 for 8 hour)
  *      @param      int		$lengthOfWeek   Length of week (default 7)
  *    	@return     string		 		 	Formated text of duration
@@ -157,7 +157,7 @@ function convertSecondToTime($iSecond, $format='all', $lengthOfDay=86400, $lengt
 	if (empty($lengthOfDay))  $lengthOfDay = 86400;         // 1 day = 24 hours
     if (empty($lengthOfWeek)) $lengthOfWeek = 7;            // 1 week = 7 days
 
-	if ($format == 'all' || $format == 'allhour' || $format == 'allhourmin')
+	if ($format == 'all' || $format == 'allwithouthour' || $format == 'allhour' || $format == 'allhourmin')
 	{
 		if ($iSecond === 0) return '0';	// This is to avoid having 0 return a 12:00 AM for en_US
 
diff --git a/htdocs/core/modules/contract/doc/pdf_strato.modules.php b/htdocs/core/modules/contract/doc/pdf_strato.modules.php
index e7d6d15b9ea..150529ae30d 100644
--- a/htdocs/core/modules/contract/doc/pdf_strato.modules.php
+++ b/htdocs/core/modules/contract/doc/pdf_strato.modules.php
@@ -269,18 +269,32 @@ class pdf_strato extends ModelePDFContract
 
 						// Description of product line
 
-						if ($objectligne->datei) {
-							$datei = dol_print_date($objectligne->datei,'dayhour',false,$outputlangs,true);
+						if ($objectligne->date_ouverture_prevue) {
+							$datei = dol_print_date($objectligne->date_ouverture_prevue,'day',false,$outputlangs,true);
 						} else {
 							$datei = $langs->trans("Unknown");
 						}
 
-						if ($objectligne->duration) {
-							$durationi = convertSecondToTime($objectligne->duration);
+						if ($objectligne->date_fin_validite) {
+							$durationi = convertSecondToTime($objectligne->date_fin_validite - $objectligne->date_ouverture_prevue, 'allwithouthour');
+							$datee = dol_print_date($objectligne->date_fin_validite,'day',false,$outputlangs,true);
 						} else {
 							$durationi = $langs->trans("Unknown");
+							$datee = $langs->trans("Unknown");
 						}
 
+						if ($objectligne->date_ouverture) {
+							$daters = dol_print_date($objectligne->date_ouverture,'day',false,$outputlangs,true);
+						} else {
+							$daters = $langs->trans("Unknown");
+						}
+
+						if ($objectligne->date_cloture) {
+							$datere = dol_print_date($objectligne->date_cloture,'day',false,$outputlangs,true);
+						} else {
+							$datere = $langs->trans("Unknown");
+						}
+						
 						$txtpredefinedservice='';
                         $txtpredefinedservice = $objectligne->product_ref;
                         if ($objectligne->product_label)
@@ -289,7 +303,10 @@ class pdf_strato extends ModelePDFContract
                         	$txtpredefinedservice .= $objectligne->product_label;
                         }
 
-						$txt='<strong>'.dol_htmlentitiesbr($outputlangs->transnoentities("Date")." : ".$datei." - ".$outputlangs->transnoentities("Duration")." : ".$durationi,1,$outputlangs->charset_output).'</strong>';
+						$txt='<strong>'.dol_htmlentitiesbr($outputlangs->transnoentities("DateStartPlannedShort")." : ".$datei." - ".$outputlangs->transnoentities("DateEndPlanned")." : ".$datee,1,$outputlangs->charset_output).'</strong>';
+						$txt.='<br>';
+						$txt.='<strong>'.dol_htmlentitiesbr($outputlangs->transnoentities("DateStartRealShort")." : ".$daters,1,$outputlangs->charset_output);
+						if ($objectligne->date_cloture) $txt.=dol_htmlentitiesbr(" - ".$outputlangs->transnoentities("DateEndRealShort")." : ".$datere,1,$outputlangs->charset_output).'</strong>';
 						$desc=dol_htmlentitiesbr($objectligne->desc,1);
 
 						$pdf->writeHTMLCell(0, 0, $curX, $curY, dol_concatdesc($txt,dol_concatdesc($txtpredefinedservice,$desc)), 0, 1, 0);