The widget instance which fired the event.
<input id="timepicker" />
<script>
$("#timepicker").kendoTimePicker({
open: function(e) {
e.preventDefault();
}
});
</script>
<input id="timepicker" />
<script>
$("#timepicker").kendoTimePicker();
var timepicker = $("#timepicker").data("kendoTimePicker");
timepicker.bind("open", function(e) {
e.preventDefault();
});
</script>