js 时区转换

function formatDate(strDate) {
        try{
            var date = new Date(strDate);
            var timeoffset = (new Date().getTimezoneOffset()) * 60 * 1000;
            var len = date.getTime();
            var date2 = new Date(len - timeoffset);
            return date2.getFullYear() + "/" + (date2.getMonth() + 1) + "/" + date2.getDate();
        }catch(e){return ""}
    }

传入0时区时间，输出本地时间