.datepicker.datepicker-rtl {
    left: auto !important;
}

.datepicker-dropdown.datepicker-orient-left.datepicker-rtl:before {
    right: 6px;
    left: auto;
}

.datepicker-dropdown.datepicker-orient-left.datepicker-rtl:after {
    right: 7px;
    left: auto;
}