private async Task ShowTimePopup()
        {
            var dateTimeAlertController = new UIAlertController();

            var timePicker = new UIDatePicker();

            timePicker.Date = _selectedDate;
            timePicker.Mode = UIDatePickerMode.Time;
            timePicker.TranslatesAutoresizingMaskIntoConstraints = false;

            var rootView = dateTimeAlertController.View;

            rootView.AddSubview(timePicker);
            rootView.AddConstraints(timePicker.WithSameTop(rootView),
                                    timePicker.AtBottomOf(rootView, 100f),
                                    timePicker.WithSameLeft(rootView),
                                    timePicker.WithSameRight(rootView));

            dateTimeAlertController.AddAction(UIAlertAction.Create(ConstantsHelper.Ok, UIAlertActionStyle.Default, action =>
            {
                _selectedDate     = timePicker.Date;
                var timeFormatter = new NSDateFormatter {
                    DateFormat = "HH:mm"
                };
                _currentTimeField.Text = timeFormatter.StringFor(_selectedDate);
            }));
            dateTimeAlertController.AddAction(UIAlertAction.Create(ConstantsHelper.Cancel, UIAlertActionStyle.Cancel, null));
            await PresentViewControllerAsync(dateTimeAlertController, true);
        }