I solve with this function:
Obs.:
196 is the number of the page!
g196-chegada and g196-sada are the ID of que data fields
You need to change this 3 information on your code.
/* JETPACK - DATE field of forms: Disabling Mobile Keyboard */
function js_on_specific_pages_f() {
if (is_page ('196')) { echo'
<script>
document.getElementById("g196-chegada").readOnly=true;
document.getElementById("g196-sada").readOnly=true;
</script>
'; }
}
add_action('wp_footer', 'js_on_specific_pages_f');