disable past dates in datetimepicker

disable past dates in datetimepicker

I'm using datetimepicker with bootstrap 4 and I want to not be possible to select past dates so I have the minDate like:

$( ".input-group.date" ).datetimepicker({
    format: "dd MM yyyy - hh:ii",
    autoclose: true,
    todayBtn: true,
    minuteStep: 5,
    minDate: 0
});

But its not working, the user can select past dates. Do you know why?

I have a fiddle with the code " https://jsfiddle.net/0y8k9ah5/1/", but don't know why the datetimepicker is not working in the fiddle.