Why isn't the date assigned to the object property?

I am using a date picker and want to assign the value from it to an object property. But for some reason this does not happen and the object property contains nil.

I put code next to it where a date value is assigned to a simple property. It works.

Please tell me what's the matter here? How do I store a date into a property of an object?

import UIKit

struct NewDate {
    var date: Date?
}


class MyViewController: UIViewController {    

    var newDate: NewDate?    

    @IBOutlet weak var pickerOutlet: UIDatePicker!    

    override func viewDidLoad() {
        super.viewDidLoad()

        let date = pickerOutlet.date
        print(date) // Prints: 2021-09-03 03:56:17 +0000

        newDate?.date = pickerOutlet.date
        print(newDate?.date) // Prints: nil
    }
}