比较简陋的方法,用下面的js可以获得本地与网络时间差的秒数,放到变量%TIME_SUB里面:
var xmlhttp=new XMLHttpRequest();
xmlhttp.open("GET","
http://www.163.com/",false);
xmlhttp.setRequestHeader("if-Modified-Since","q");
xmlhttp.send();
var dateStr=xmlhttp.getResponseHeader("Date");
var d=new Date(dateStr);
var sec_net = Math.floor(d.valueOf()/1000);
var sec_loc = global("%TIMES");
var sec_sub = sec_loc - sec_net;
setGlobal("%TIME_SUB", sec_sub);