js 中時間相減

var addDate = "獲取到你想要的時間";//注意時間格式是：2012-03-05 11:41:30.910 addDate = new Date(Date.parse(addDate.replace(/\-/g, "/"))); var now = new Date(); var diff = now.getTime() - addDate.getTime(); //判斷大於七天 if (addDate == 'NaN' || diff > 0 && diff > 7 * 24 * 60 * 60 * 1000) { art(""); }