If set to true, add header to the timepicker.
Examples
True
<input id="timepicker" width="280" />
<script>
$('#timepicker').timepicker({ header: true });
</script>
False
<input id="timepicker" width="280" />
<script>
$('#timepicker').timepicker({ header: false, mode: '24hr' });
</script>