diff --git a/app/Events/TaskDateUpdated.php b/app/Events/TaskDateUpdated.php
new file mode 100644
index 0000000..af928d2
--- /dev/null
+++ b/app/Events/TaskDateUpdated.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace App\Events;
+
+use App\Models\Event;
+use App\Models\Task;
+use Illuminate\Broadcasting\InteractsWithSockets;
+use Illuminate\Broadcasting\PrivateChannel;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
+use Illuminate\Foundation\Events\Dispatchable;
+use Illuminate\Queue\SerializesModels;
+
+class TaskDateUpdated implements ShouldBroadcastNow
+{
+    use Dispatchable, InteractsWithSockets, SerializesModels;
+
+    public $task;
+    protected $userId;
+
+    /**
+     * Create a new event instance.
+     */
+    public function __construct($userId, Task $task)
+    {
+        $this->userId = $userId;
+        $this->task = $task;
+    }
+
+    /**
+     * Get the channels the event should broadcast on.
+     *
+     * @return array<int, \Illuminate\Broadcasting\Channel>
+     */
+    public function broadcastOn(): array
+    {
+        return [
+            new PrivateChannel('user.' . $this->userId),
+        ];
+    }
+
+    public function broadcastAs()
+    {
+        return 'task.date.updated';
+    }
+}
diff --git a/app/Http/Controllers/TasksController.php b/app/Http/Controllers/TasksController.php
index d9626d9..e5a90d7 100644
--- a/app/Http/Controllers/TasksController.php
+++ b/app/Http/Controllers/TasksController.php
@@ -2,9 +2,11 @@
 
 namespace App\Http\Controllers;
 
+use App\Events\TaskDateUpdated;
 use App\Events\TaskParticipationCancelled;
 use App\Events\VolunteerAssignedToTask;
 use App\Events\VolunteerUnassignedFromTask;
+use App\Mail\TaskDateUpdateMail;
 use App\Models\Event;
 use App\Models\Notification;
 use App\Mail\VolunteerAssignToTaskMail;
@@ -18,6 +20,7 @@ use Illuminate\Support\Facades\Gate;
 use Illuminate\Support\Facades\Log;
 use Illuminate\Support\Facades\Mail;
 use App\Mail\TaskParticipationCancelledMail;
+use App\Services\FormatDate;
 
 class TasksController extends Controller
 {
@@ -80,7 +83,7 @@ class TasksController extends Controller
 
         try {
             $task = Task::find($request["task_id"]);
-            $event = \App\Models\Event::find($task->events_id);
+            $event = Event::find($task->events_id);
 
             if ($task->users()->where('user_id', $id)->exists()) {
                 return response()->json(["message" => "User already assigned to this task"], 400);
@@ -112,6 +115,7 @@ class TasksController extends Controller
                     'taskName' => $task->name,
                     'start' => $task->start,
                     'end' => $task->end,
+                    'eventName' => $event->name,
                 ];
                 Mail::to($user->email)->send(new VolunteerAssignToTaskMail($data));
             }
@@ -146,7 +150,7 @@ class TasksController extends Controller
 
         try {
             $task = Task::with(['users'])->find($id);
-            $event = \App\Models\Event::find($task->events_id);
+            $event = Event::find($task->events_id);
 
             if (!$task) {
                 return response()->json(["message" => "Task not found"], 404);
@@ -175,6 +179,7 @@ class TasksController extends Controller
                         'taskName' => $task->name,
                         'start' => $event->start,
                         'end' => $task->end,
+                        'eventName' => $event->name,
                     ];
                     Mail::to($user->email)->send(new TaskParticipationCancelledMail($data));
                 }
@@ -197,8 +202,41 @@ class TasksController extends Controller
         }
 
         try {
-
             $task = Task::find($id);
+            if((
+                $task->start !== $request["start"] || $task->end !== $request["end"]
+                ) &&
+                Carbon::now()->lessThanOrEqualTo($task->end)
+            ){
+                $participants = $task->users;
+                $formatedTaskStart = FormatDate::formatDate($task->start);
+                $formatedTaskEnd = FormatDate::formatDate($task->end);
+                $event = Event::find($task->events_id);
+
+                foreach ($participants as $user) {
+                    $notification = Notification::create([
+                        'content' => "La date de la tâche {$task->title} de l'événement {$task->event->name} à été mis à jour. Cette tâche aura maintenant lieu du {$formatedTaskStart} au {$formatedTaskEnd}."
+                    ]);
+                    $notification->users()->attach($user->id);
+                    broadcast(new TaskDateUpdated(
+                        $user->id,
+                        $task,
+                    ));
+
+                    $data = [
+                        'name' => $user->name,
+                        'lastname' => $user->lastname,
+                        'taskName' => $task->name,
+                        'oldStart' => $formatedTaskStart,
+                        'oldEnd' => $formatedTaskEnd,
+                        'newStart' => $request["start"],
+                        'newEnd' => $request["end"],
+                        'eventName' => $event->name,
+                    ];
+                    Mail::to($user->email)->send(new TaskDateUpdateMail($data));
+                }
+            }
+
             $task->name = $request["name"];
             $task->description = $request["description"];
             $task->start = $request["start"];
@@ -242,7 +280,7 @@ class TasksController extends Controller
 
         try {
             $task = Task::find($request["task_id"]);
-            $event = \App\Models\Event::find($task->events_id);
+            $event = Event::find($task->events_id);
 
             if (!$task) {
                 return response()->json(["message" => "Task not found"], 404);
@@ -273,6 +311,7 @@ class TasksController extends Controller
                     'taskName' => $task->name,
                     'start' => $task->start,
                     'end' => $task->end,
+                    'eventName' => $event->name,
                 ];
                 Mail::to($user->email)->send(new VolunteerUnassignToTaskMail($data));
             }
diff --git a/app/Mail/TaskDateUpdateMail.php b/app/Mail/TaskDateUpdateMail.php
new file mode 100644
index 0000000..6405074
--- /dev/null
+++ b/app/Mail/TaskDateUpdateMail.php
@@ -0,0 +1,64 @@
+<?php
+
+namespace App\Mail;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Mail\Mailable;
+use Illuminate\Mail\Mailables\Content;
+use Illuminate\Mail\Mailables\Envelope;
+use Illuminate\Queue\SerializesModels;
+
+class TaskDateUpdateMail extends Mailable
+{
+    use Queueable, SerializesModels;
+    public $data;
+
+    /**
+     * Create a new message instance.
+     */
+    public function __construct($data)
+    {
+        $this->data = $data;
+    }
+
+    /**
+     * Get the message envelope.
+     */
+    public function envelope(): Envelope
+    {
+        return new Envelope(
+            subject: 'Date de tâche modifiée - Comité des fêtes de Beaupont',
+        );
+    }
+
+    /**
+     * Get the message content definition.
+     */
+    public function content(): Content
+    {
+        return new Content(
+            view: 'mails.updateRole',
+            with: [
+                'name' => $this->data['name'],
+                'lastname' => $this->data['lastname'],
+                'taskName' => $this->data['taskName'],
+                'oldStart' => $this->data['oldStart'],
+                'oldEnd' => $this->data['oldEnd'],
+                'newStart' => $this->data['newStart'],
+                'newEnd' => $this->data['newEnd'],
+                'eventName' => $this->data['eventName'],
+            ]
+        );
+    }
+
+    /**
+     * Get the attachments for the message.
+     *
+     * @return array<int, \Illuminate\Mail\Mailables\Attachment>
+     */
+    public function attachments(): array
+    {
+        return [];
+    }
+}
diff --git a/resources/views/mails/taskDateUpdate.blade.php b/resources/views/mails/taskDateUpdate.blade.php
new file mode 100644
index 0000000..2f48e99
--- /dev/null
+++ b/resources/views/mails/taskDateUpdate.blade.php
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html lang="fr">
+    <head>
+        <meta charset="UTF-8">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>Date de tâche modifiée</title>
+    </head>
+    <body style="padding: 20px; font-family: Arial, sans-serif;">
+        <div>
+            <p>Bonjour {{ $name }} {{ $lastname }},</p>
+
+            <p>
+                La date de la tâche {{ $taskName }} de l'événement {{ $eventName }} a été modifié par un administrateur.
+                Cette tâche avait lieu du {{ $oldStart }} au {{ $oldEnd }}. Et aura maintenant lieu du {{ $newStart }} au {{ $newEnd }}.
+            </p>
+
+            <p>
+                Si vous pensez qu’il s’agit d’une erreur ou si vous souhaitez plus d’informations,
+                merci de contacter l’équipe du Comité des fêtes de Beaupont.
+            </p>
+
+            <p>
+                À très bientôt,<br>
+                L’équipe du Comité des fêtes de Beaupont
+            </p>
+        </div>
+
+        <p style="font-size: 14px; color: #999; text-align: center; padding-top: 20px;">
+            Cet email a été envoyé automatiquement, merci de ne pas y répondre.
+        </p>
+    </body>
+</html>