Is there a way to make a new Date with date and time?

Ionic Framework ionic-v3
1 
<ion-grid style="height: 100%">
      <ion-row justify-content-center align-items-center style="height: 100%">
        <ion-col>
          
          <ion-item>
            <ion-label>To be done by:</ion-label>
            <ion-datetime displayFormat="MM/DD/YYYY" [(ngModel)]="task.dueDate"></ion-datetime>
          </ion-item>

          <ion-item>
            <ion-label>Time:</ion-label>
            <ion-datetime displayFormat="hh:mm a" [(ngModel)]="task.dueTime"></ion-datetime>
          </ion-item>

          <br>

          <button ion-button block color='dark' (click)="goToPledgePage()">Confirm Time</button>
  
        </ion-col>
      </ion-row>
    </ion-grid>```

In my ts file, I would like to make a new Date with the information I got. I've been stuck googling this for two days. Please help :(
2

date-fns has setXXX methods allowing you to modify each field of a Date.

3

Is there a native way to do it?