If set to true, the datetimepicker will have modal behavior.
Examples
Material Design
<input id="input" width="312" />
<script>
$('#input').datetimepicker({ modal: true });
</script>
Bootstrap
<input id="input" width="220" />
<script>
$('#input').datetimepicker({ uiLibrary: 'bootstrap', modal: true, footer: true });
</script>
Bootstrap 4
<input id="input" width="234" />
<script>
$('#input').datetimepicker({ uiLibrary: 'bootstrap4', modal: true, footer: true });
</script>
Bootstrap 5
<input id="input" width="234" />
<script>
$('#input').datetimepicker({ uiLibrary: 'bootstrap5', modal: true, footer: true });
</script>