你应该使用 Keith Wood 的倒数计时器:http://keith-wood.name/countdown.html

You should use Keith Wood's countdown timer: http://keith-wood.name/countdown.html

它非常易于使用.

你所要做的就是

$('#timer').countdown({
    until: '<?php echo date("h:i:s"); ?>' // change this, obviously
});

这是小提琴:http://jsfiddle.net/tqyj4/289/