@media (min-width:992px){
    #divDateSelector1 {
        display: block;
    }
    #divDateSelector2 {
        display: none;
    }
}
@media screen and (max-width:991px) {
    #divDateSelector1 {
        display: none;
    }
    #divDateSelector2 {
        display: block;
    }
}