diff --git a/htdocs/comm/action/card.php b/htdocs/comm/action/card.php
index c8355cf03be..c5f4fb3d2ea 100644
--- a/htdocs/comm/action/card.php
+++ b/htdocs/comm/action/card.php
@@ -885,8 +885,16 @@ if (empty($reshook) && $action == 'update' && $usercancreate) {
 			$datep = dol_mktime(0, 0, 0, GETPOSTINT("apmonth"), GETPOSTINT("apday"), GETPOSTINT("apyear"), $tzforfullday ? $tzforfullday : 'tzuserrel');
 			$datef = dol_mktime(23, 59, 59, GETPOSTINT("p2month"), GETPOSTINT("p2day"), GETPOSTINT("p2year"), $tzforfullday ? $tzforfullday : 'tzuserrel');
 		} else {
-			$datep = dol_mktime(GETPOSTINT("aphour"), GETPOSTINT("apmin"), GETPOSTINT("apsec"), GETPOSTINT("apmonth"), GETPOSTINT("apday"), GETPOSTINT("apyear"), 'tzuserrel');
-			$datef = dol_mktime(GETPOSTINT("p2hour"), GETPOSTINT("p2min"), GETPOSTINT("apsec"), GETPOSTINT("p2month"), GETPOSTINT("p2day"), GETPOSTINT("p2year"), 'tzuserrel');
+			if (!GETPOSTISSET('ap') && !GETPOSTISSET('aphour') && !GETPOSTISSET('apmin')) {	// If date fields are disabled, we keep old value
+				$datep = $object->datep;
+			} else {
+				$datep = dol_mktime(GETPOSTINT("aphour"), GETPOSTINT("apmin"), GETPOSTINT("apsec"), GETPOSTINT("apmonth"), GETPOSTINT("apday"), GETPOSTINT("apyear"), 'tzuserrel');
+			}
+			if (!GETPOSTISSET('p2') && !GETPOSTISSET('p2hour') && !GETPOSTISSET('p2min')) {	// If date fields are disabled, we keep old value
+				$datef = $object->datef;
+			} else {
+				$datef = dol_mktime(GETPOSTINT("p2hour"), GETPOSTINT("p2min"), GETPOSTINT("apsec"), GETPOSTINT("p2month"), GETPOSTINT("p2day"), GETPOSTINT("p2year"), 'tzuserrel');
+			}
 		}
 		//set end date to now if percentage is set to 100 and end date not set
 		$datef = (!$datef && $percentage == 100) ? dol_now() : $datef;
@@ -2138,10 +2146,6 @@ if ($id > 0 && $action != 'create') {
 
 		// Date start - end
 		print '<tr><td class="nowrap">';
-		/*print '<span class="fieldrequired">'.$langs->trans("DateActionStart").'</span>';
-		print ' - ';
-		print '<span id="dateend"'.($object->type_code == 'AC_RDV' ? ' class="fieldrequired"' : '').'>'.$langs->trans("DateActionEnd").'</span>';
-		*/
 		print '</td><td>';
 		$tzforfullday = getDolGlobalString('MAIN_STORE_FULL_EVENT_IN_GMT');
 		print $form->selectDate($datep ? $datep : $object->datep, 'ap', 1, 1, 0, "action", 1, 2, ($caneditdateorowner ? 0 : 1), 'fulldaystart', '', '', '', 1, '', '', $object->fulldayevent ? ($tzforfullday ? $tzforfullday : 'tzuserrel') : 'tzuserrel');
diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 8799c78b705..9b1a585f3a3 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -7655,7 +7655,7 @@ class Form
 				$retstring .= '</option>';
 			}
 			$retstring .= '</select>';
-			//if ($m && empty($conf->dol_optimize_smallscreen)) $retstring .= ":";
+
 			if ($m) {
 				$retstring .= ":";
 			}