Bootstraptaste freebie today is a twitter bootstrap 3 coming soon template called ‘WeBuild’. Simple, flat and minimal design with jQuery countdown and polygonal background.
To set your own timer then find following lines on very bottom of index.html source code
<script type="text/javascript">
$('#countdown').countdown('2015/01/01', function(event) {
$(this).html(event.strftime('%w weeks %d days <br /> %H:%M:%S'));
});
</script>
* jQuery countdown from https://github.com/hilios/jQuery.countdown