diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 22a2c53e1c2..95be6cf97fa 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -8760,9 +8760,10 @@ class Form
             <input type="hidden" class="' . $htmlname . '" name="' . $htmlname . '" value="' . $listcheckedstring . '">
             </dt>
             <dd class="dropdowndd">
-                <div class="multiselectcheckbox' . $htmlname . '">
-                    <ul class="' . $htmlname . ($pos == '1' ? 'left' : '') . '">
-                    ' . $listoffieldsforselection . '
+                <div class="multiselectcheckbox'.$htmlname.'">
+                    <ul class="'.$htmlname.($pos == '1' ? 'left' : '').'">
+                    <li><input class="inputsearch_dropdownselectedfields width90p minwidth200" style="width:90%;" type="text" placeholder="'.$langs->trans('Search').'"></li>
+                    '.$listoffieldsforselection.'
                     </ul>
                 </div>
             </dd>
@@ -8785,6 +8786,12 @@ class Form
                   // Now, we submit page
                   //$(this).parents(\'form:first\').submit();
               });
+              $("input.inputsearch_dropdownselectedfields").on("keyup", function() {
+			    var value = $(this).val().toLowerCase();
+			    $(\'.multiselectcheckbox'.$htmlname.' li > label\').filter(function() {
+			      $(this).parent().toggle($(this).text().toLowerCase().indexOf(value) > -1)
+			    });
+			  });
 
 
            });
diff --git a/htdocs/core/js/lib_foot.js.php b/htdocs/core/js/lib_foot.js.php
index fb6f4597c0a..ae0de6ad0cb 100644
--- a/htdocs/core/js/lib_foot.js.php
+++ b/htdocs/core/js/lib_foot.js.php
@@ -153,6 +153,7 @@ if (!defined('JS_JQUERY_DISABLE_DROPDOWN')) {
                   // Click onto the link "link to" or "hamburger", toggle dropdown
 				  $(document).on(\'click\', \'.dropdown dt a\', function () {
                   	  console.log("toggle dropdown dt a");
+                  	  setTimeout(() => { $(\'.inputsearch_dropdownselectedfields\').focus(); }, 200);
 
                       //$(this).parent().parent().find(\'dd ul\').slideToggle(\'fast\');
                       $(".ulselectedfields").removeClass("open");
diff --git a/htdocs/projet/tasks/time.php b/htdocs/projet/tasks/time.php
index 0005a9fd881..293e0575653 100644
--- a/htdocs/projet/tasks/time.php
+++ b/htdocs/projet/tasks/time.php
@@ -1814,7 +1814,7 @@ if (($id > 0 || !empty($ref)) || $projectidforalltimes > 0 || $allprojectforuser
 			print '<td class="nowraponall">';
 			$durationtouse = (GETPOST('timespent_duration') ? GETPOST('timespent_duration') : '');
 			if (GETPOSTISSET('timespent_durationhour') || GETPOSTISSET('timespent_durationmin')) {
-				$durationtouse = (GETPOST('timespent_durationhour') * 3600 + GETPOST('timespent_durationmin') * 60);
+				$durationtouse = ((int) GETPOST('timespent_durationhour') * 3600 + (int) GETPOST('timespent_durationmin') * 60);
 			}
 			print $form->select_duration('timespent_duration', $durationtouse, 0, 'text');
 			print '</td>';