I have a string read in and it is separated to year, month, day, hour, minute, second, millisecond. I want to be able to compare two different date/ time stamps. Ex. Check if hour on lhs is larger then hr on rhs. and then continue to check months, days, hours, minutes, seconds, and milliseconds. So far I have and idea of what I'm trying to do just having a hard time putting it together. If anyone has any ideas that would be awesome. Ps. this is NOT a homework assignment, I'm in the process of building an application, while learning c++. 

```
ClassName operator < (ClassName &lhs, ClassName &rhs);

```

above is function.

Thanks!