import { DatePipe } from '@angular/common'; @Component({ selector: 'app-inscription', templateUrl: './inscription.component.html', styleUrls: ['./inscription.component.sass'], providers: [DatePipe], }) constructor( private datePipe: DatePipe) { } var dd = this.datePipe.transform( form.value['birthdate'], "MM/dd/yyyy"); const birthday : string = dd!=null ? dd.toString().toString():""; // now you can use birthday to send like datetime type