Generally each booking for service listing type requires time to be set for a booking, this is either set by selecting available time-slot or picking time from time-picker.
If for some reason you don’t want users to be able to see/select the time picker option, here’s a small snippet that will get rid of it.
You can add code into your functions.php file in child-theme or use WP Code plugin:
add_filter('listeo_core_service_timepicker_value', 'default_time');
function default_time($time)
{
//return current time
return date('H:i');
}
Then go to Appearance -> Customize -> Additional CSS add this
.col-lg-12.listeo-service-timepicker {
display: none;
}