You've noticed that datetime.time objects do not support arithmetic, but both datetime.time and datetime.timedelta objects do. You can use combinations of them to do what you want.

There's a sneaky danger involved with the Python import statement. Here's why it is a potential risk for enterprises and what they can do about it.

This post explains what a Python module is and how to use it to drastically extend the capabiltiies of your code. Plus: how to make your own!