Answers for "bootstrap datetimepicker widget positioning"

bootstrap datetimepicker widget positioning

There is no option for older version of Bootstrap Datetime Picker. But you can 
change the positioning by applying CSS to the dropdown picker.

.bootstrap-datetimepicker-widget.dropdown-menu {
    inset: auto!important;
}

Here is the docs for more details :
https://bootstrap-datepicker.readthedocs.io/