Detect change to selected date with bootstrap-datepicker

Answer 1

$(function() {
  $('input[name="datetimepicker"]').datetimepicker({
    defaultDate: new Date()
  }).on('dp.change',function(event){
    $('#newDateSpan').html("New Date: " + event.date.format('lll'));
    $('#oldDateSpan').html("Old Date: " + event.oldDate.format('lll'));
  });
  
});