为了便于传输，通信过程中传输的都是：当前时间跟标准时间相隔的秒数，并且是以16进制字节的形式传输的。

1 public double ConvertDateTimeInt(System.DateTime time)//将时间格式的数据类型转换成浮点数类型    2         { 3             double intResult = 0; 4             System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1)); 5             intResult =(time - startTime).TotalSeconds; 6             return intResult; 7         } 8  9         public DateTime ConvertIntDatetime(double utc)10         {11             System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));12             startTime = startTime.AddSeconds(utc);13             startTime = startTime.AddHours(8);//转化为北京时间(北京时间=UTC时间+8小时 )14             return startTime;15         }

1  public byte[] ConvertDoubleByte(double d)  2         { 3             byte[] result = new byte[4]; 4             float f=(float)d; 5             result = BitConverter.GetBytes(f); 6             return result; 7         } 8  9         public double  ConvertByteDouble(byte [] d)10         {11             double result=0;12             float q = BitConverter.ToSingle(d, 0);13             result = (double)q;14             return result;15         }

1 private void button1_Click(object sender, EventArgs e)//这种只是显示的形式不同，未达到目的 2          { 3              DateTime utc_tem = DateTime.UtcNow; 4  5              double utc = ConvertDateTimeInt(utc_tem);//相对应的秒数！ 6              byte[] s = new byte[4]; 7             s = ConvertDoubleByte(utc); 8  9 10             DateTime mytime = ConvertIntDatetime(1429647491.3936753);11             byte[] b = new byte[4] { 0x80,0x6d,0xaa,0x4e};12             mytime = ConvertIntDatetime(ConvertByteDouble(b));13         }