diff --git a/module/todo/css/common.ui.css b/module/todo/css/common.ui.css
index 9c706f0d5c..4047d69289 100644
--- a/module/todo/css/common.ui.css
+++ b/module/todo/css/common.ui.css
@@ -1,6 +1,3 @@
-.form-row .form-group.items-center {align-items: center;}
-#nameInputBox {width: 80%;}
-#nameInputBox .form-control {width: 99.8%;}
 .have-fix .input-control-prefix {width: 42px; background: #f6f7f9; opacity: 1;}
 .have-fix .input-group-addon {width: 42px;}
 .highlight-suffix .input-control-suffix,
@@ -11,3 +8,6 @@
 .form-row .tooltip-btn:hover:before {opacity: 0;}
 .input-control > .form-control.before-days {padding-left: 50px;}
 .form .label-id {height: 20px; border-color: #D8DBDE; border-radius: 10px;}
+.form-row .form-group.items-center {align-items: center;}
+#nameInputBox {width: 80%;}
+#nameInputBox .form-control {width: 99.8%;}
diff --git a/module/todo/ui/edit.html.php b/module/todo/ui/edit.html.php
index d7e87790b2..565a90e8ed 100644
--- a/module/todo/ui/edit.html.php
+++ b/module/todo/ui/edit.html.php
@@ -65,7 +65,6 @@ function buildDateControl(object $todo): mixed
             set(array
             (
                 'label'  => $lang->todo->date,
-                'class'  => 'items-center',
                 'width'  => '1/3'
             )),
             control
@@ -517,10 +516,11 @@ formPanel
             (
                 set(array
                 (
-                    'items' => $users,
-                    'value' => $todo->assignedTo,
-                    'id'    => 'assignedTo',
-                    'name'  => 'assignedTo',
+                    'items'    => $users,
+                    'value'    => $todo->assignedTo,
+                    'id'       => 'assignedTo',
+                    'name'     => 'assignedTo',
+                    'disabled' => $todo->private
                 )),
                 on::change('changeAssignedTo()')
             )
@@ -628,10 +628,11 @@ formPanel
                 (
                     set(array
                     (
-                        'id'    => 'begin',
-                        'name'  => 'begin',
-                        'items' => $times,
-                        'value' => $todo->begin,
+                        'id'       => 'begin',
+                        'name'     => 'begin',
+                        'items'    => $times,
+                        'value'    => $todo->begin,
+                        'disabled' => $todo->begin == 2400
                     )),
                     on::change('selectNext()')
                 ),
@@ -644,10 +645,11 @@ formPanel
                 (
                     set(array
                     (
-                        'id'    => 'end',
-                        'name'  => 'end',
-                        'items' => $times,
-                        'value' => $todo->end
+                        'id'       => 'end',
+                        'name'     => 'end',
+                        'items'    => $times,
+                        'value'    => $todo->end,
+                        'disabled' => $todo->begin == 2400
                     )),
                     on::blur('selectEndTime(this)')
                 )