diff --git a/app/Http/Resources/ToDoResource.php b/app/Http/Resources/ToDoResource.php
index df484c6..8be4c9c 100644
--- a/app/Http/Resources/ToDoResource.php
+++ b/app/Http/Resources/ToDoResource.php
@@ -19,6 +19,7 @@ class ToDoResource extends JsonResource
             'user_id' => $this->user_id,
             'name' => $this->name,
             'checked' => $this->checked,
+            'duration' => $this->duration,
         ];
     }
 }
diff --git a/app/Models/User.php b/app/Models/User.php
index d731b09..0aeaa77 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -58,7 +58,12 @@ class User extends Authenticatable
 
     public function stopCurrentTimeTracker(): void
     {
-        $this->currentTimeTracker()->update(['end_at' => now()]);
+        $end = now();
+        $delay = $end->diffInSeconds($this->currentTimeTracker->start_at);
+        $toDo = $this->currentTimeTracker->toDo;
+        $toDo->duration = $toDo->duration + $delay;
+        $toDo->save();
+        $this->currentTimeTracker()->update(['end_at' => $end]);
         $this->time_tracker_id = null;
         $this->save();
     }
diff --git a/database/migrations/2024_02_15_225248_add_position_and_duration_to_to_dos_table.php b/database/migrations/2024_02_15_225248_add_position_and_duration_to_to_dos_table.php
new file mode 100644
index 0000000..83ac911
--- /dev/null
+++ b/database/migrations/2024_02_15_225248_add_position_and_duration_to_to_dos_table.php
@@ -0,0 +1,30 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('to_dos', function (Blueprint $table) {
+            $table->unsignedInteger('duration')->default(0)->after('description');
+            $table->unsignedInteger('position')->default(0)->after('description');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('to_dos', function (Blueprint $table) {
+            $table->dropColumn('position');
+            $table->dropColumn('duration');
+        });
+    }
+};
diff --git a/resources/js/components/toDos/ToDoIndex.tsx b/resources/js/components/toDos/ToDoIndex.tsx
index 0bda68a..fde8630 100644
--- a/resources/js/components/toDos/ToDoIndex.tsx
+++ b/resources/js/components/toDos/ToDoIndex.tsx
@@ -57,8 +57,9 @@ const ToDoIndex: FC<ToDoIndexProps> = ({reload, setReload}) => {
                        onChange={() =>toggleCheck(toDo)}
                        className=""/>
                 <Link to={"/todos/" + toDo.id}
-                      className={`${toDo.checked ? 'line-through' : ''} flex-1`}>
-                    {toDo.name}
+                      className={`${toDo.checked ? 'line-through' : ''} flex-1 flex justify-between`}>
+                    <span>{toDo.name}</span>
+                    <span className="text-gray-400 text-md mr-2">{toDo.duration} s</span>
                 </Link>
                 {!toDo.checked && <span className="cursor-pointer flex items-center"
                                         title="Commencer"
diff --git a/resources/js/utilities/types.ts b/resources/js/utilities/types.ts
index 991f51f..fd614b7 100644
--- a/resources/js/utilities/types.ts
+++ b/resources/js/utilities/types.ts
@@ -4,6 +4,8 @@ export interface toDo {
     name: string,
     checked: string|null,
     description?: string,
+    duration: number,
+    position: number,
 }
 
 export interface timeTracker {