How to make a timer program in Python

Question

Here is my goal: To make a small program (text based) that will start with a greeting, print out a timer for how long it has been since the last event, and then a timer for the

Answer 1

This seems like it would be MUCH easier:

#!/usr/bin/env python
from datetime import datetime as dt
starttime = dt.now()
input("Mark end time")
endtime = dt.now()
print("Total time passed is {}.".format(endtime-starttime))