https://www.city.uenohara.yamanashi.jp/ssi/js/clock.js

1(function($) {
2	$.extend({
3		clock: function clock(target){
4				var d = new Date();
5				var h = d.getHours();
6				var m = d.getMinutes();
7				var s = d.getSeconds();
8				h = h<10?"0"+h:h;
9				m = m<10?"0"+m:m;
10				s = s<10?"0"+s:s;
11				// var time_str = h + ":" + m + ":" + s;
12				var time_str = h + ":" + m;
13				target.html(time_str);
14				setTimeout(function(){
15					clock(target)
16				},1000);
17			}
18	});
19})(jQuery);
20
21
22jQuery(document).ready(function($){
23	$.clock($("#target"));
24});