diff --git a/src/app/core/models/user.model.ts b/src/app/core/models/user.model.ts
index ddb6643..f940feb 100644
--- a/src/app/core/models/user.model.ts
+++ b/src/app/core/models/user.model.ts
@@ -5,7 +5,8 @@ export class User {
   firstName: string;
   lastName: string;
 
-  role: UserRole = UserRole.writer;
+  role = UserRole.writer;
   createdAt: string;
   disabled: boolean;
+  endDate = "9999-12-31";
 }
diff --git a/src/app/modules/configuration/chatbot-users/user-form/user-form.component.html b/src/app/modules/configuration/chatbot-users/user-form/user-form.component.html
index 5ed7818..7290f69 100644
--- a/src/app/modules/configuration/chatbot-users/user-form/user-form.component.html
+++ b/src/app/modules/configuration/chatbot-users/user-form/user-form.component.html
@@ -2,11 +2,7 @@
   <form [formGroup]="userForm" *ngIf="userForm">
     <mat-form-field appearance="outline">
       <mat-label>Prénom</mat-label>
-      <input matInput
-             placeholder="Saisir..."
-             formControlName="firstName"
-             maxlength="50"
-             required>
+      <input matInput placeholder="Saisir..." formControlName="firstName" maxlength="50" required>
       <mat-error *ngIf="controls.firstName.hasError('required')">
         Vous n'avez pas saisi de prénom.
       </mat-error>
@@ -17,11 +13,7 @@
 
     <mat-form-field appearance="outline">
       <mat-label>Nom</mat-label>
-      <input matInput
-             placeholder="Saisir..."
-             formControlName="lastName"
-             maxlength="50"
-             required>
+      <input matInput placeholder="Saisir..." formControlName="lastName" maxlength="50" required>
       <mat-error *ngIf="controls.lastName.hasError('required')">
         Vous n'avez pas saisi de nom.
       </mat-error>
@@ -32,11 +24,7 @@
 
     <mat-form-field appearance="outline">
       <mat-label>Email</mat-label>
-      <input matInput
-             placeholder="Saisir..."
-             formControlName="email"
-             maxlength="255"
-             required>
+      <input matInput placeholder="Saisir..." formControlName="email" maxlength="255" required>
       <mat-error *ngIf="controls.email.hasError('required')">
         Vous n'avez pas saisi d'email.
       </mat-error>
@@ -50,27 +38,30 @@
 
     <mat-form-field appearance="outline">
       <mat-label>Rôle</mat-label>
-      <mat-select formControlName="role"
-                  placeholder="Choisir..."
-                  required>
+      <mat-select formControlName="role" placeholder="Choisir..." required>
         <mat-option *ngFor="let role of userRole" [value]="role">{{ userRole_Fr[role] }}</mat-option>
       </mat-select>
       <mat-error *ngIf="controls.role.hasError('required')">
         Vous n'avez pas choisi de rôle.
       </mat-error>
     </mat-form-field>
+
+    <mat-form-field appearance="outline">
+      <mat-label>Date de fin de validité</mat-label>
+      <input matInput formControlName="endDate" [matDatepicker]="endDatePicker" required>
+      <mat-datepicker-toggle matSuffix [for]="endDatePicker"></mat-datepicker-toggle>
+      <mat-datepicker #endDatePicker></mat-datepicker>
+      <mat-error *ngIf="controls.endDate.hasError('required')">
+        La date de fin de validité est obligatoire.
+      </mat-error>
+    </mat-form-field>
+
   </form>
   <div class="actions">
-    <button mat-stroked-button
-            color="accent"
-            *ngIf="isNewUser"
-            (click)="onCancel()">
+    <button mat-stroked-button color="accent" *ngIf="isNewUser" (click)="onCancel()">
       Annuler
     </button>
-    <button mat-flat-button
-            color="accent"
-            [disabled]="!userForm.valid || !userForm.dirty"
-            (click)="addUser()">
+    <button mat-flat-button color="accent" [disabled]="!userForm.valid || !userForm.dirty" (click)="addUser()">
       {{ isNewUser ? 'Ajouter' : 'Modifier' }}
     </button>
   </div>
diff --git a/src/app/modules/configuration/chatbot-users/user-form/user-form.component.ts b/src/app/modules/configuration/chatbot-users/user-form/user-form.component.ts
index a7645c2..06a031d 100644
--- a/src/app/modules/configuration/chatbot-users/user-form/user-form.component.ts
+++ b/src/app/modules/configuration/chatbot-users/user-form/user-form.component.ts
@@ -15,11 +15,11 @@ export class UserFormComponent implements OnInit {
   userRole = Object.keys(UserRole);
   userRole_Fr = UserRole_Fr;
 
-  @Input() user: User = new User();
+  @Input() user = new User();
   @Output() cancel: EventEmitter<boolean> = new EventEmitter<boolean>();
 
   constructor(private _fb: FormBuilder,
-              private _userService: UserService) {
+    private _userService: UserService) {
   }
 
   ngOnInit(): void {
@@ -50,8 +50,9 @@ export class UserFormComponent implements OnInit {
       isNewUser: [!this.user.email],
       firstName: [this.user.firstName, [Validators.required, Validators.maxLength(50)]],
       lastName: [this.user.lastName, [Validators.required, Validators.maxLength(50)]],
-      email: [{value: this.user.email, disabled: !!this.user.email}, [Validators.required, Validators.maxLength(255), Validators.email]],
-      role: [this.user.role, [Validators.required]]
+      email: [{ value: this.user.email, disabled: !!this.user.email }, [Validators.required, Validators.maxLength(255), Validators.email]],
+      role: [this.user.role, [Validators.required]],
+      endDate: [this.user.endDate, [Validators.required]],
     });
   }
 
diff --git a/src/app/modules/material/material.module.ts b/src/app/modules/material/material.module.ts
index ab22f45..578dc3a 100644
--- a/src/app/modules/material/material.module.ts
+++ b/src/app/modules/material/material.module.ts
@@ -18,7 +18,7 @@ import { MatExpansionModule } from '@angular/material/expansion';
 import { MatLegacyAutocompleteModule as MatAutocompleteModule } from '@angular/material/legacy-autocomplete';
 import { MatBadgeModule } from '@angular/material/badge';
 import { MatLegacyTableModule as MatTableModule } from '@angular/material/legacy-table';
-import { MatMomentDateModule } from '@angular/material-moment-adapter';
+import { MAT_MOMENT_DATE_ADAPTER_OPTIONS, MatMomentDateModule } from '@angular/material-moment-adapter';
 import { MatLegacyMenuModule as MatMenuModule } from '@angular/material/legacy-menu';
 import { MatLegacySlideToggleModule as MatSlideToggleModule } from '@angular/material/legacy-slide-toggle';
 import { MatButtonToggleModule } from '@angular/material/button-toggle';
@@ -30,6 +30,9 @@ import { MatButtonToggleModule } from '@angular/material/button-toggle';
     MatTooltipModule, MatDialogModule, MatExpansionModule, MatAutocompleteModule, MatBadgeModule, MatTableModule, MatMenuModule,
     MatSlideToggleModule, MatButtonToggleModule
   ],
+  providers: [
+    { provide: MAT_MOMENT_DATE_ADAPTER_OPTIONS, useValue: { useUtc: true } }
+  ],
   exports: [
     MatFormFieldModule, MatSelectModule, MatInputModule, MatButtonModule, MatIconModule, MatCardModule, MatDividerModule, MatSidenavModule,
     MatProgressSpinnerModule, MatRadioModule, MatProgressBarModule, MatCheckboxModule, MatDatepickerModule,