Change

<div id="calendar"></div>
<script>
    $("#calendar").kendoCalendar({
        change: function() {
            var value = this.value();
/* The result can be observed in the DevTools(F12) console of the browser. */
            console.log(value); //value is the selected date in the calendar
        }
    });
</script>

<div id="calendar"></div>
<script>
    $("#calendar").kendoCalendar();

    var calendar = $("#calendar").data("kendoCalendar");

    calendar.bind("change", function() {
        var value = this.value();
/* The result can be observed in the DevTools(F12) console of the browser. */
        console.log(value); //value is the selected date in the calendar
    });
</script>