Rounding time in Python

Question

What would be an elegant, efficient and Pythonic way to perform a h/m/s rounding operation on time related types in Python with control over the rounding resolution?

Answer 1

How about use datetime.timedeltas:

import time
import datetime as dt

hms=dt.timedelta(hours=20,minutes=11,seconds=13)

resolution=dt.timedelta(seconds=10)
print(dt.timedelta(seconds=hms.seconds%resolution.seconds))
# 0:00:03

resolution=dt.timedelta(minutes=10)
print(dt.timedelta(seconds=hms.seconds%resolution.seconds))
# 0:01:13