<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:clickable="false"
    android:weightSum="1">

    <Button
        android:id="@+id/btnDepartureDate"
        android:layout_width="271dp"
        android:layout_height="62dp"
        android:layout_gravity="center_horizontal"
        android:text="@string/pick_stats" />

    <TimePicker
        style="@style/Widget.AppCompat.Spinner"
        android:id="@+id/timePicker"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:foregroundGravity="bottom"
        android:layout_weight="0.11"
        android:layout_gravity="bottom" />

    <Spinner
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:prompt="@string/day_pick"
        android:popupBackground="#000000"
        android:entries="@array/week_day"
        android:id="@+id/spinner" />

</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:clickable="false"
    android:weightSum="1">

    <TimePicker
        style="@style/Widget.AppCompat.Spinner"
        android:id="@+id/timePicker"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:foregroundGravity="bottom"
        android:layout_weight="0.11"
        android:layout_gravity="bottom" />

    <Spinner
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:prompt="@string/day_pick"
        android:popupBackground="#000000"
        android:entries="@array/week_day"
        android:id="@+id/spinner" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:orientation="vertical"
        android:gravity="bottom" >
        <Button
            android:id="@+id/btnDepartureDate"
            android:layout_width="271dp"
            android:layout_height="62dp"
            android:layout_gravity="center_horizontal"
            android:text="@string/pick_stats" />
    </LinearLayout>
</LinearLayout>
Move "get stats" to bottom
Move "get stats" to bottom
