/Date

var auditTime = new Date(parseInt(result.Data.AuditTime.substr(6)));

var birthdayMilliseconds = parseInt(result.Data.AuditTime.replace(/D/igm, ""));
//实例化一个新的日期格式，使用1970 年 1 月 1 日至今的毫秒数为参数
var birthday = new Date(birthdayMilliseconds);
alert(birthday.toLocaleDateString());