Message 249836 - Python tracker

> I did not quite understand why you've chosen ROUND_HALF_UP over ROUND_HALF_EVEN, but as long as fromtimestamp() uses the same rounding as timedelta() - I am happy.

Not only Tim prefers this rounding mode, Python 2.7 also uses the same mode, and the original poster basically said that Python 3 doesn't behave like Python 2. So... the most obvious rounding mode is the same than Python 2, ROUND_HALF_UP.