I am new in iOS development. I have this ViewController in my Storyboard (includes a UIDatePicker and a bar button):

I followed Data Cell to call my DatePicker. When user click on a button in the page PickerDate pops up with a done bar button on the navigation bar:

The problem is it shows just the current date as default. Nothing changes when I set it from Properties:

Do you know how can I fix it? (by setting up the properties or programmatically).
I did it programmatically in this way :
But still don’t know why it doesn’t work by
setting up the properties. Any help?