Working with time values greater than 24 hours

Working with time values greater than 24 hours

How does one work with time periods greater than 24 hours in python? I
looked at the datetime.time object but this seems to be for handling the
time of a day, not time in general.
datetime.time has the requirement of 0 <= hour < 24 which makes it useless
if you want to record a time of more than 24 hours unless I am missing
something?
Say for example I wanted to calculate the total time worked by someone. I
know the time they've taken to complete tasks individually. What class
should I be using to safely calculate that total time.
My input data would look something like this:
# The times in HH:MM:SS
times = ["16:35:21", "8:23:14"]
total_time = ? # 24:58:35