There we go guys, solution:
$("#mzti-start-date").datepicker({ format: 'dd MM yyyy', startDate: date, autoclose: true }).on('changeDate', function(dateEvent) { start_date = $("#mzti-start-date").val(); $('#mzti-finish-date').datepicker('setStartDate', start_date); var iso_date = new Date(start_date); $('#mzti-finish-date').datepicker('setDate', iso_date); });
There is a definitely a niftier way to do that :)