If set to true, the timepicker will have modal behavior.
Examples
True
<input id="timepicker" width="280" />
<script>
$('#timepicker').timepicker({ modal: true });
</script>
False
<input id="timepicker" width="280" />
<script>
$('#timepicker').timepicker({ modal: false, header: false, footer: false });
</script>