JSON日期时间通过WCF传输到SQL Server数据库

在过去的几天里，我注意到一个问题，提交到sql server数据库的日期是错误的。我有一个网页，用户可以在那里预订设施。这个网页有一个名称、日期、开始时间和结束时间（交易需要BookingID，但由数据库生成），我将其格式化为JSON字符串，如下所示：

{"BookingEnd":"'/Date(2012-26-03 09:00:00.000)'/","BookingID":1,"BookingName":"client test 1","BookingStart":"'/Date(2012-26-03 10:00:00.000)'/","RoomID":4}

然后将其传递给WCF服务，WCF服务按如下方式处理数据库插入：

[WebInvoke(Method = "POST", RequestFormat = WebMessageFormat.Json, UriTemplate = "createbooking")]
    void CreateBooking(Booking booking);
[DataContract]
public class Booking
{
    [DataMember]
    public int BookingID { get; set; }
    [DataMember]
    public string BookingName { get; set; }
    [DataMember]
    public DateTime BookingStart { get; set; }
    [DataMember]
    public DateTime BookingEnd { get; set; }
    [DataMember]
    public int RoomID { get; set; }
}

预订svc

public void CreateBooking(Booking booking)
    {
        BookingEntity bookingEntity = new BookingEntity()
                                        {
                                            BookingName = booking.BookingName,
                                            BookingStart = booking.BookingStart,
                                            BookingEnd = booking.BookingEnd,
                                            RoomID = booking.RoomID
                                        };
        BookingsModel model = new BookingsModel();
        model.CreateBooking(bookingEntity);
    }

预订模式：

public void CreateBooking(BookingEntity booking)
    {
        using (var conn = new SqlConnection("Data Source=cpm;Initial Catalog=BookingDB;Integrated Security=True"))
        using (var cmd = conn.CreateCommand())
        {
            conn.Open();
            cmd.CommandText =
                @"IF NOT EXISTS ( SELECT * FROM Bookings WHERE BookingStart = @BookingStart AND BookingEnd = @BookingEnd AND RoomID= @RoomID )
                    INSERT INTO Bookings ( BookingName, BookingStart, BookingEnd, RoomID ) VALUES ( @BookingName, @BookingStart, @BookingEnd, @RoomID )";
            cmd.Parameters.AddWithValue("@BookingName", booking.BookingName);
            cmd.Parameters.AddWithValue("@BookingStart", booking.BookingStart);
            cmd.Parameters.AddWithValue("@BookingEnd", booking.BookingEnd);
            cmd.Parameters.AddWithValue("@RoomID", booking.RoomID);
            cmd.ExecuteNonQuery();
            conn.Close();
        }
    }

这会更新数据库，但每次我以上述json格式提交日期时，时间都会以"1970-01-01 00:00:02.013"结束。但是，当我在SQL server management studio中使用上述日期格式（"YYYY-MM-DD HH:MM:SS.mmm"）进行查询时，它会插入正确的值。此外，如果我向wcf提交一个毫秒的日期时间，则插入了正确的日期。问题似乎出在我提交的格式上。我对这个问题有点不知所措。我真的不明白它为什么要这么做。如有任何帮助，我们将不胜感激。谢谢