Before we dive into the differences between local and global variables, let's first recall what a variable is in Python. A variable is a named location in memory that stores a value. In Python, we can ...

In Python, a variable declared outside of the function or in global scope is known as a global variable. This means that a global variable can be accessed inside or outside of the function.

However, I'm missing some inheritance piece here or global variables since if I run this second smaller function to add 01 to millisecond 999 it replaces 999 with 01, it doesn't add to it.